Entries |
Document | Title | Date |
20080234673 | MULTI-ELECTRODE INSTRUMENTS - Multi-electrode instruments and methods for applying electrical energy to the multiple electrodes are described. An assembly having at least two electrodes may be configured such that the electrodes are positioned at an angle relative to one another and/or are each configured to treat different tissue types. Moreover, power may be applied to one, some, or all of the electrodes utilizing various switching systems and/or electrical monitoring systems. | 09-25-2008 |
20080249526 | Method and apparatus for surgical dissection - An apparatus for dissecting tissue in a substantially uniform plane of dissection includes a housing configured to be advanced under a tissue layer, and control one of a depth of dissection or tissue flap thickness. The housing thermally shields at least a portion of the tissue flap. A roller is coupled to the housing. The roller is configured to smoothly advance housing over tissue. An energy delivery device is coupled to housing. The energy delivery device is configured to be coupled to an energy source. The energy delivery device has a geometry that substantially defines a plane of dissection. | 10-09-2008 |
20080269738 | MULTI-ELECTRODE LEAD - A multi-electrode lead ( | 10-30-2008 |
20080275444 | Endoscopic treatment instrument and tissue incision method - An endoscopic treatment instrument according to the present invention includes: a flexible catheter inserted through a channel in an endoscope; a conductive electrode capable of freely extending and retracting through the catheter; and an insulator extending a retracting together with the electrode relative to the catheter so that the insulator isolates not the distal end portion of the electrode but the rest of the electrode protruding from the catheter. | 11-06-2008 |
20080275445 | METHOD AND APPARATUS FOR GASTROINTESTINAL TRACT ABLATION FOR TREATMENT OF OBESITY - Devices and methods for ablating tissue in the wall of various organs of the gastrointestinal tract of a patient in order to cure or ameliorate metabolic pathophysiological conditions such as obesity, insulin resistance, or type 2 diabetes mellitus are provided. Ablational treatment of target areas may be fractional or partial, rendering a post-treatment portion of target tissue ablated and another portion that is substantially intact. Fractional ablation is achieved by controlling the delivery of ablational energy across the surface area being treated, and controlling the depth of energy penetration into tissue. Surface area control of energy delivery may controlled by the spatial pattern of distributed ablation elements or by the selective activation of a subset of a dense pattern of ablation elements. Embodiments of the device include an ablational electrode array that spans 360 degrees and an array that spans an arc of less than 360 degrees. | 11-06-2008 |
20080281323 | Tissue specimen isolating and damaging device and method - A device and method for treatment of a tissue specimen disposed in surrounding tissue has a tissue specimen isolating toot and a tissue specimen damager. The tissue specimen isolating tool isolates the tissue specimen from the surrounding tissue. The tissue specimen damager damages the tissue, with a possible end result being necrosis. The severing tool may have a cutting member that is extendable to an outwardly radially bowed position about device. The tissue specimen is isolated by rotating the cutting member about the tissue specimen. The cutting member may be functionally connected to a cutting member radio frequency generation source. The tissue specimen damager may damage the tissue specimen using ionizing radiation, cutting devices, thermal treatment devices, chemical treatment devices, or sealing an outer boundary of the tissue specimen. | 11-13-2008 |
20080287947 | RF intervertebral electrosurgical probe - An electrosurgical instrument for spinal procedures comprises an elongated tubular member configured to fit within and be extended down a standard sized cannula. The instrument comprises a proximal end including a handle for the surgeon and supplied with fittings for connection to a source of irrigation fluid and a source of suction. The distal end of the instrument has an active end comprising a slightly-flexible curved wire electrode that extends in the plane of the tubular member. Beyond the wire electrode is an exit port for irrigation fluid, and in front of the electrode is a receiving port for suction. The wire electrode is thus flanked in front by the exiting irrigation fluid and behind by the suction, with the result that fluid flow is drawn by the suction across the wire electrode creating pressure forces that direct removed tissue to the suction entrance and its removal from the surgical site. | 11-20-2008 |
20080306478 | Method and Apparatus for Electrochemically Dissolving Selected Regions of Conducting Objects in Tissue - A method and apparatus are described for selectively removing parts of a conducting object imbedded in tissue using an electrolytic process. The method includes steps for protecting the surrounding tissue from damage during the electrolytic process. Applications for the invention include sectioning surgical and/or post-mortem tissue for gross and microscopic examination, in situations where the tissue is complicated by the presence of a metal implant. | 12-11-2008 |
20090024125 | AUTOMATICALLY RETRACTING NEEDLE-TIP ELECTROCAUTERY DEVICE - Medical devices that useful during electrocauterization procedures. The present invention encompasses a needle-tipped electrocautery device in which the needle tip is housed within the body of the device when the device is not in use. When an extension mechanism on the electrocautery stylus is activated, the tip is exposed and may be used for surgical procedures. The mechanism may be either mechanically driven or electronically driven. The present invention thereby dramatically reduces the risk of injury or infection by inadvertent pricks from an electrocautery tool. | 01-22-2009 |
20090036887 | Electrosurgical Instrument - The invention relates to an electrosurgical instrument for cutting and/or coagulating a tissue to be treated, comprising at least one cutting electrode for conducting a high-frequency (“HF”) current through the tissue for carrying out a cutting process and comprising power supply devices for supplying the HF current at least to the cutting electrode. The design of the electrosurgical instrument is improved so that the cutting process can be carried out with an increased reliability while prolonging the serviceable life of the cutting electrode at the same time. To this end, the cutting electrode is mounted on the electrosurgical instrument in a manner that enables it to rotate about a rotation axis and comprises at least one cutting area which is provided in the form of a helical curve or similar three-dimensional curve running around the rotation axis and which is arranged in such a manner that when the cutting electrode rotates about the rotation axis it is active over its length in sections on the tissue when a section falls below a defined minimum distance from the tissue and/or is located within a defined window area. | 02-05-2009 |
20090054895 | DEVICE TO OPEN AND CLOSE A BODILY WALL - A medical device and method for performing transluminal procedures that reduces procedure time as well as the number of instruments used is disclosed. An elongate medical device has both a cutting tool and a suturing tool disposed at a distal end of the elongate medical device. The suturing tool includes a plurality of needles connected to one or more sutures. The elongate medical device is advanced through a bodily lumen to a position proximate the visceral wall. A perforation is formed in the visceral wall using the cutting tool. The elongate medical device and its suturing tool are advanced through the perforation and a plurality of needles are passed through the visceral wall around the periphery of the perforation. The plurality of needles are withdrawn through the bodily lumen and the perforation is closed using the suture. | 02-26-2009 |
20090062791 | Integrated smoke evacuation electrosurgical pencil and method - An electrosurgical pencil includes an adjustable-length suction tube which surrounds a stationary electrode to evacuate smoke and electrosurgical byproducts from a surgical site. An electrode anchor unit is located within the interior of the suction tube to allow relative movement of the suction tube relative to a stationarily-retained electrode, and to receive and connect to different lengths of the electrodes. Adjusting the length of the suction tube relative to the different lengths of the electrode achieves effective evacuation, among other things. | 03-05-2009 |
20090062792 | ELECTRICAL ABLATION SURGICAL INSTRUMENTS - An electrical ablation device includes an elongated flexible member having a proximal end and a distal end. A clamp jaw portion is located at the distal end of the elongated flexible member. The clamp jaw portion is operatively movable from an open position to a closed position. A cutting blade is located in the clamp jaw portion. The clamp jaw portion is adapted to couple to an electrical waveform generator and to receive an electrical waveform. | 03-05-2009 |
20090062793 | CUTTING WIRE ELECTRODE - The present invention pertains to a cutting wire electrode, comprising at least one elongated shaft with a main longitudinal axis having at least one bore located at its distal portion, said bore being approximately perpendicular to said main longitudinal axis; and at least one wire loop located in the distal portion of said shaft; said loop comprising at least one continuous portion adapted to cut biological tissues, especially by electrocoagulation, and at least one abutment, wherein said abutment is adapted to be anchored within said bore and hence integrating said loop with said shaft. | 03-05-2009 |
20090076504 | Four-position rocker switch for electrosurgical handpiece - A surgical apparatus includes an actuation unit disposed on a handle and a control unit providing at least three modes for controlling the electrical instrument. The actuation unit contains a switching rocker with an operating element, which is rotatable about a rocker axis that can be shifted perpendicular to the surface of the handle, so that starting from an initial position a first or second function position can be reached by forwards or backwards rotation about the rocker axis, and a third function position can be reached by pressing the operating element inward, two sensors being disposed on the operating element, one on the left and the other on the right side of the rocker axis, in such a way that by means of the sensors the function position selected by means of the switching rocker can be determined by the control unit. | 03-19-2009 |
20090125026 | APPARATUS SYSTEM AND METHOD FOR COAGULATING AND CUTTING TISSUE - A combination tissue coagulation and cutting apparatus, system and method for coagulating and cutting tissue. A clamp element includes first and second clamp members having respective first and second porous electrodes, such as sintered metal electrodes. A portion of tissue, such as a blood vessel, is held between the porous electrodes, and fluid from a fluid source can pass through the porous electrodes. The tissue portion can be coagulated when electrical current is applied to the first and second porous electrodes, and an adjustable cutting element that is associated with the clamp members is positioned to cut a segment or all of the coagulated tissue portion. In this manner, the same surgical instrument is used to coagulate and cut tissue. | 05-14-2009 |
20090138012 | Electrode with Rotatably Deployable Sheath - A sheath system for selectively covering a distal end of an electrocautery blade is provided. The sheath system includes a hub having a body portion defining a lumen therethrough and a sheath having a body portion defining a lumen therethrough. The lumen of the sheath is configured and dimensioned to operatively receive an electrocautery blade therein. The sheath is translatably associated with the hub such that rotation of the hub in a first direction results in axial movement of the sheath in a first direction to expose a distal end of the electrocautery blade and rotation of the hub in a second direction, opposite to the first direction, results in axial movement of the sheath in a second direction to cover the distal end of the electrocautery blade. The hub and the sheath may be concentric with one another. | 05-28-2009 |
20090149852 | Accurate Cutting About and Into Tissue Volumes with Electrosurgically Deployed Electrodes - Method, system and apparatus for carrying out accurate electrosurgical cutting. A thin resilient electrode is utilized at the forward end region of an instrument that is deployable from a longitudinally disposed slot positioned rearwardly of the tip of the instrument. Lateral sides of the slot extend between a forward location adjacent the tip and a rearward location. The electrode is deployed by urging it forwardly in compression to form an arch profile supported by the abutting slot sides adjacent the forward and rearward locations. Electrosurgically excitable with a cutting output, the electrode may carry out a cutting action both during its deployment and retraction into the noted slot. This permits a pivoting maneuver effective for circumscribing a volume of targeted tissue. | 06-11-2009 |
20090192510 | Polyp Encapsulation System and Method - An endoscopic electrosurgical instrument is presented for encapsulating and resecting biologic tissue, such as a polyp, from an anatomical structure, such as a lumen. The instrument includes an encapsulation assembly which includes a snare coupled to an electrically non-conductive, shrinkable pouch in a drawstring-like configuration. The encapsulation assembly may be folded within the elongated cylindrical housing of the endoscopic instrument, positioned within the patient at the surgical site, and deployed for use. Once positioned over the polyp, the snare is tightened around the peduncle thereof, and the pouch is activated, thereby shrinking and encapsulating the polyp. The polyp may then be resected using conventional or electrosurgical techniques. The disclosed instrument may include surgical tools and/or electrosurgical electrodes for performing surgical procedures. The disclosed system may reduce the occurrence of undesirable arcing and may aid retrieval of resected tissue. | 07-30-2009 |
20090216225 | THERMAL CAPSULOTOMY TOOL AND SYSTEM - A system and tool for performing a capsulotomy procedure. The system includes an air pressure unit, a capsulotomy and movement control unit providing electrical current and movement control, and a capsulotomy tool, and an extendable-retractable burning element coupled to the tool. A capsulotomy and movement control unit provides electrical current to the burning element and movement control for extending and retracting the burning element. When the burning element is in a flattened, retracted configuration, the tip of the tool can be inserted through a relatively small corneal incision. Then, the burning element is opened to a circular, extended configuration, allowing a capsulotomy by applying an electrical pulse to the burning element. Optionally, predefined points of weakness allow removal of the tool should breakage occur during surgery. | 08-27-2009 |
20090216226 | ELECTROSURGICAL METHOD AND SYSTEM FOR TREATING FOOT ULCER - An electrosurgical method for treating foot ulcer, including diabetic foot ulcer, comprising: positioning an active electrode in close proximity to the ulcer, the active electrode being disposed on a distal end of an electrosurgical shaft; applying a high-frequency voltage potential difference across the active electrode and a return electrode in the presence of an electrically conductive fluid, the voltage potential being sufficient to generate plasma at the active electrode; and stimulating the ulcer with the active electrode to increase blood flow, remove unhealthy tissue and induce the body's natural healing response. | 08-27-2009 |
20090216227 | ELECTROSURGICAL METHOD AND SYSTEM FOR TREATING FOOT ULCER - An electrosurgical method for treating foot ulcer, including diabetic foot ulcer, comprising: positioning an active electrode in close proximity to the ulcer, the active electrode being disposed on a distal end of an electrosurgical shaft; applying a high-frequency voltage potential difference across the active electrode and a return electrode in the presence of an electrically conductive fluid, the voltage potential being sufficient to generate plasma at the active electrode; and stimulating the ulcer with the active electrode to increase blood flow, remove unhealthy tissue and induce the body's natural healing response. | 08-27-2009 |
20090248020 | ELECTROSURGICAL SYSTEM - An electrosurgical tool can be used to fuse tissue. The electrosurgical tool can include a jaw assembly, an elongate shaft, and a handle assembly. Actuation of the handle assembly can actuate the jaw assembly. The elongate shaft can be rotatable without disrupting electrical connection to the jaw assembly. The electrosurgical tool can include a cutting blade to separate fused tissue. The electrosurgical tool can also include a jaw assembly configuration or an exterior cutting electrode to improve surgical access with the tool. | 10-01-2009 |
20090259223 | Apparatus for retrieving a tissue volume with improved positioning precursor assembly - Apparatus for retrieving a tissue volume of a variety utilizing an electrosurgically excited cable implemented capture component which performs in combination with an improved precursor assembly. Where that assembly is electrosurgically excited, then it is located and dimensioned to avoid arc-over with the capture component cables. A precursor assembly also is implemented with electrically insulative ceramic blade and trocar configurations. | 10-15-2009 |
20090306657 | SPLIT FLEXIBLE TUBE BIASING AND DIRECTIONAL ATHERECTOMY DEVICE AND METHOD - The invention provides a rotational atherectomy system, device and method comprising a flexible, elongated, rotatable catheter tube that is split into two elements, a biasing element and a cutting element, distally and wherein the biasing element and cutting element are capable of forming a first and retracted position for insertion into a lumen and a second and expanded position for ablation. The biasing element is biased in the expanded position, thereby placing a biasing force against the lumen wall and pressing the cutting element against the opposite side of the lumen wall for directional cutting and/or grinding, either by rotation, axial translation, vibration or a combination thereof. | 12-10-2009 |
20100023006 | RF intervertebral disc surgical system - A spinal surgical system comprising a plurality of surgical components for cooperating with a electrosurgical handpiece comprising an elongated tubular member housing an electrode, with the tubular member configured to fit within and be extended down a standard sized cannula in a MIS procedure. The system components comprise one or more cannulas, straight or beveled; one or more guide wires, with and without pointed ends for piercing tissue; a tapered dilator; a trephine; and one or more depth control stops for mounting on the cannula for monitoring its depth. The system is especially useful for performing a discectomy. | 01-28-2010 |
20100030212 | METHODS, SYSTEMS, AND DEVICES FOR PERFORMING ELECTROSURGICAL PROCEDURES - An electrosurgical system including a sharpened electrosurgical electrode, which can have a coated surface, and an automatically adjusting electrosurgical wave generator is disclosed. The automatically adjusting wave generator and the sharpened electrode tip provide or enhance the properties, attributes and/or characteristics of the electrosurgical system and prevent tissue damage and reduce incidences of post-operative complications, thereby quickening the healing process. The wave generator detects various circuit parameters and automatically adjusts the output settings, such as the output power level, based on the various circuit parameters, such as tissue impedance, to prevent undesirable tissue damage. | 02-04-2010 |
20100069903 | Vessel Sealing Instrument With Cutting Mechanism - An end effector assembly for use with an instrument for sealing and cutting tissue includes a pair of opposing first and second jaw members movable relative to the to grasp tissue therebetween. Each jaw member including a jaw housing and an electrically conductive surface adapted to connect to a source of electrosurgical energy such that the electrically conductive surfaces are capable of conducting electrosurgical energy through tissue held therebetween to effect a tissue seal. One of the electrically conductive surfaces including a channel defined therein and extending along a length thereof that communicates with a nozzle disposed in the jaw housing. The nozzle is configured to direct high pressure fluid from a fluid source into the channel for cutting tissue grasped between the jaw members. | 03-18-2010 |
20100087814 | DEVICE FOR CUTTING AND COAGULATING TISSUE - The invention concerns an application device for electrosurgical cutting and coagulation of body tissue, wherein the instrument is in the form of a gripping instrument having two gripping arms which are movable relative to each other and which each have at their distal end at least two respective electrodes, namely at least one coagulation electrode and at least one cutting electrode. | 04-08-2010 |
20100087815 | Electrosurgical Plenum - An electrosurgical probe having a plenum which prevents contact of the active electrode with tissue, while simultaneously allowing a fluid/interfacing agents to contact the active electrode. | 04-08-2010 |
20100094284 | ORGAN INCISION METHOD - A method of making an incision in an organ includes piercing, by a puncture needle having a proximal end and a distal end, an abdominal wall and an organ that is to be incised, disposing, via the puncture needle, an electrode, to which a first end of a cable is electrically connected, inside the organ, and disposing a second end of the cable outside a body, performing insufflation using a conduit so as to form a space between the abdominal wall and the organ, pulling the cable farther from the second end so that the electrode is placed in contact with an incision position of the organ, and the incision position of the organ is pulled into the space, and supplying power to the cable so that an incision is made by the electrode at the incision position of the organ. | 04-15-2010 |
20100174283 | ELECTROSURGICAL DEVICES FOR TONSILLECTOMY AND ADENOIDECTOMY - Monopolar electrosurgery devices adapted for resecting tonsil and adenoid tissue. The devices minimize thermal injury by employing a plasma generated by pulsed electrical signals to precisely and effectively cut or coagulate the tissues. Suction may also be applied to the tissues to enhance the cutting, coagulation, and tissue manipulation functions. The devices include an interchangeable tip that may be switched for another tip, depending on which tip may be more suitable for tonsillectomy or adenoidectomy. | 07-08-2010 |
20100179543 | Vessel Sealing Instrument With Electrical Cutting Mechanism - An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes a pair of spaced apart electrically conductive tissue contacting surfaces which each have an insulator disposed therebetween, the conductive surfaces are connected to an electrosurgical energy source. The first jaw member includes an electrically conductive cutting element disposed within the insulator which extends towards the second tissue contacting surface to create a gap therebetween. The cutting element is inactive during the sealing process while the two pairs of electrically conductive surfaces are activated to seal tissue. During the cutting process, the cutting element is energized to a first potential and at least one electrically conductive tissue contacting surface is energized to a different potential to effect a tissue cut through the tissue held between the jaw members along the already formed tissue seal. | 07-15-2010 |
20100198218 | REPLACEABLE END-EFFECTOR CARTRIDGES WITH CAM MECHANISMS - In one embodiment of the invention, a replaceable electrosurgical end effector cartridge is provided to couple to a mechanical wrist of a surgical instrument for a robotic surgical system. The replaceable electrosurgical end effector cartridge includes two end effectors, a fastener to rotatably couple the two end effectors together, and a cam mechanism. At least one of the two end effectors is a moveable end effector having a jaw portion, an off-center portion, and a base portion. The cam mechanism is coupled to the base portion of the at least one moveable end effector to pivot it about the fastener to open and close the jaw portion of the at least one moveable end effector with respect to the other. | 08-05-2010 |
20100198219 | INSTRUMENT AND SYSTEM FOR SURGICAL CUTTING AND EVOKED POTENTIAL MONITORING - A surgical cutting instrument for use with a drive motor, and related system and method, is described. The surgical cutting instrument includes an elongated drive member, a cutting tip secured to the drive member, a non-conductive coupling body adapted for connection to a motor assembly, a housing maintaining the coupling body, a fluid coupling assembly and an electrical connector for connection to a stimulating energy source. The electrical connector is in electrical communication with the cutting tip via an electrical pathway. | 08-05-2010 |
20100211066 | Use of IMP3 as a Prognostic Marker for Cancer - Provided herein are methods and compositions for the prognostic evaluation of a patient suspected of having, or having, cancer by assessing the expression of IMP3 in a biological sample of a patient. Methods can be used at the time of initial diagnosis of malignant tumors to identify a group of patients with a high potential to develop progression or metastasis later. Therefore, methods not only are able to provide very useful prognostic information for patients but also can help clinicians to select a candidate patient likely to benefit from early and aggressive cancer therapy. Methods and compositions for the treatment of cancer associated with expression of IMP3 are also provided. | 08-19-2010 |
20100228250 | CUT AND SEAL INSTRUMENT - A combined electrical tissue sealing and mechanical tissue cutting instrument. The instrument has two opposing jaw members. A removable cartridge is positioned in one of the jaw members. The cartridge includes a tissue sealing electrode and a tissue cutter. As either the tissue sealing electrode or the cutter deteriorates with use, the cartridge is replaced with a new cartridge. Cartidges are configured with various electrode geometries to accommodate various associated electro-surgical units. One or more pressure sensors in the cartridge or in the instrument jaw that supports the cartridge provide an indication that a required clamping pressure exists between the jaw members to carry out the tissue sealing. A cut and seal controller allows various actions to be carried out when particular clamping pressures are sensed, or when an indication that tissue sealing is complete is sensed. | 09-09-2010 |
20100274244 | Electrosurgical Tissue Sealer and Cutter - A surgical instrument comprises an end effector including a pair of jaw members configured to move with respect to one another between an open configuration and a closed configuration for clamping tissue. At least one jaw member includes an elongate cam slot extending in a longitudinal direction over a substantial a length a tissue clamping surface of the at least one jaw member. A plurality of electrically isolated, and longitudinally spaced electrodes is supported by the tissue clamping surface and is configured to deliver electrosurgical energy to tissue. A reciprocating member engages the elongate cam slot and is extendable to a sealing position with respect to each of the electrodes to define a predetermined gap distance between a particular electrode and an opposing tissue clamping surface. | 10-28-2010 |
20100292690 | SURGICAL APPARATUS FOR TISSUE SEALING AND CUTTING - A surgical apparatus for coagulating and cutting tissue includes a handle assembly having a housing. A tool cartridge is receivable in the housing. The tool cartridge includes a first jaw and a second jaw for grasping tissue therebetween. The first jaw is hingably movable between an open position and a closed position. A first jaw connection wire is operatively connected to the first jaw. A sheath encompasses at least part of the longitudinal portion of the jaw connection wire. A grip is disposed around at least part of the sheath. A piston is disposed within the sheath and operatively connected to the grip such that the grip and piston move in relation to one another. The jaw connection wire is operatively connected to the piston for moving the first jaw in response to movement of the grip. | 11-18-2010 |
20100292691 | CUT AND SEAL INSTRUMENT - A combined electrical tissue sealing and mechanical tissue cutting instrument. The instrument has two opposing jaw members. A removable cartridge is positioned in one of the jaw members. The cartridge includes a tissue sealing electrode and a tissue cutter. As either the tissue sealing electrode or the cutter deteriorates with use, the cartridge is replaced with a new cartridge. Cartridges are configured with various electrode geometries to accommodate various associated electro-surgical units. One or more pressure sensors in the cartridge or in the instrument jaw that supports the cartridge provide an indication that a required clamping pressure exists between the jaw members to carry out the tissue sealing. A cut and seal controller allows various actions to be carried out when particular clamping pressures are sensed, or when an indication that tissue sealing is complete is sensed. | 11-18-2010 |
20100292692 | Sphincterotome With Stiffening Member - A sphincterotome is disclosed including an elongate shaft having a lumen extending through at least a portion of the elongate shaft. The lumen includes a proximal segment and a distal segment. A cutting element extends within the lumen through the proximal segment of the lumen and extends exterior of the elongate shaft along the distal segment of the lumen. A stiffening member is positioned within the distal segment of the lumen. | 11-18-2010 |
20110004208 | ELECTROSURGICAL INSTRUMENT WITH REPLACEABLE CARTRIDGE - Various embodiments provide an electrosurgical instrument with a disposable electrosurgical cartridge. In one embodiment, the cartridge has first and second energy-delivery surfaces that carry first and second opposing polarity conductors coupled to a voltage source, together with first and second temperature-responsive variable impedance bodies exposed partly in the respective-delivery surfaces. The cartridge further carries a slidable blade member. The temperature-responsive variable impedance bodies are coupled to the voltage source by series and parallel circuitry. In use, the variable impedance bodies are adapted to modulate current flow and ohmic heating in engaged tissue by providing controlled current paths in the tissue and through the variable impedance bodies as the temperature-responsive bodies sense the temperature of adjacent engaged tissue. The engagement surfaces are capable of highly localized modulation of Rf energy application to engaged tissue to provide high and low temperatures, voltage and current in the tissue to create high strength welds. | 01-06-2011 |
20110022047 | Active Cooling System and Apparatus for Controlling Temperature of a Fluid used During Treatment of Biological Tissue - A system for controlling temperature of a fluid used during treatment of biological tissue includes a fluid temperature control apparatus. The apparatus includes at least one heat transfer device and a solution bag and/or a heat transfer membrane. The solution bag and/or the heat transfer membrane reside in thermal communication with the heat transfer device. When the solution bag and/or the heat transfer membrane is fluidically coupled to an electrosurgical device, fluid is supplied to the electrosurgical device at a controlled temperature during a surgical procedure utilizing the electrosurgical device to enable more efficient treatment of the biological tissue. A corresponding method includes fluidically coupling the fluid temperature control apparatus to the electrosurgical device and supplying fluid at a controlled temperature during a surgical procedure utilizing the electrosurgical device to enable more efficient treatment of the biological tissue. | 01-27-2011 |
20110028970 | ELECTROSURGICAL SYSTEMS AND METHODS FOR REMOVING AND MODIFYING TISSUE - The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to ablate, contract, coagulate, or otherwise modify a tissue or organ of a patients. An electrosurgical apparatus includes an electrode support bearing an active electrode in the form of a plasma blade or hook having an active edge and first and second blade sides. The active edge is adapted for severing a target tissue via localized molecular dissociation of tissue components. The first and second blade sides are adapted for engaging against, and coagulating, the severed tissue. A method of the present invention comprises positioning an electrosurgical probe adjacent to the target tissue so that a blade- or hook-like active electrode is brought into at least close proximity to the target tissue in the presence of an electrically conductive fluid. A high frequency voltage is applied between the active electrode and a return electrode to effect cool ablation or other modification of the target tissue. During application of the high frequency voltage, the electrosurgical apparatus may be translated, reciprocated, or otherwise manipulated such that the active edge is moved with respect to the tissue. The present invention volumetrically ablates or otherwise modifies the target tissue with minimal or no damage to surrounding, non-target tissue. | 02-03-2011 |
20110046623 | Electrical Cutting and Vessel Sealing Jaw Members - The present disclosure relates to an end effector assembly for use with an electrosurgical instrument. The end effector assembly includes a pair of opposing first and second jaw members and a first electrically conductive cutting plate. The pair of opposing first and second jaw members is movable to cooperatively grasp tissue. Each of the jaw members includes a tissue contacting plate that is disposed thereon and has a longitudinal channel that is defined therealong. The first electrically conductive cutting plate includes a cutting element that extends along the first electrically conductive cutting plate and into the longitudinal channel of the first jaw member to engage and electrosurgically sever tissue upon activation thereof. | 02-24-2011 |
20110054467 | Cutting Assembly for Surgical Instruments - The present disclosure relates to an end effector assembly for use with a forceps. The end effector assembly includes a pair of jaw members and a cutting element. The pair of jaw members having at least one jaw member that is moveable relative to the other from a first, open position to a second, closed position for grasping tissue. Each of the jaw members includes a cutting channel that is defined therein and extends therealong. The cutting element includes a fixed end and a movable end. The fixed end is disposed within the cutting channel of one of the jaw members and the moveable end is disposed within the cutting channel of the other of the jaw member. The cutting element defines a movable cutting loop disposed between the cutting channels and between the fixed end and the movable end. The cutting loop has an arcuate portion that is reciprocatable to cut tissue. | 03-03-2011 |
20110054468 | Apparatus for Performing an Electrosurgical Procedure - A surgical instrument is provided. The surgical instrument including an end effector assembly operatively connected to a distal end of the shaft and having a pair of first and second jaw members, one or both of the first and second jaw members moveable from an open position to a clamping position, wherein each of the first and second jaw members includes a cutting channel defined therein that extends therethrough. A cutting element is movable within the cutting channel and includes a stationary blade and a pivoting blade that pivots with respect to the stationary blade when first and second jaw members are in the clamped position and the cutting element is advanced through the cutting channel. The jaw members include an actuator operably connected to the housing and configured to impart reciprocating movement of the cutting element. | 03-03-2011 |
20110066149 | MEDICAL RESECTOR - A medical resector for oblating, cutting, or coagulating human or animal tissue includes a rotatable high-frequency electrode on the distal end of a shaft of the medical resector and an axle that runs from the proximal end to the distal end of the shaft and is mechanically coupled with the high-frequency electrode on the distal end. The axle is positioned on the distal end of the shaft in the center or as close as possible to the center of the cross-section of the shaft and on the proximal end of the shaft on the border or as close as possible to the border of the cross-section of the shaft. | 03-17-2011 |
20110071522 | In Vivo Attachable and Detachable End Effector Assembly and Laparoscopic Surgical Instrument and Methods Therefor - A method of performing surgery includes the steps of providing a forceps having a housing including a shaft that extends therefrom and at least one handle moveable relative to the housing and providing an end effector assembly configured to selectively engage a distal end of the shaft. The method also includes the steps of inserting the forceps through a first opening formed in a body; inserting the end effector assembly through a second opening formed in the body; engaging the end effector assembly with the distal end of the shaft in vivo; and actuating the end effector assembly by moving the handle relative to the housing. The method may also include the steps of providing a coupling at the distal end of the shaft, and engaging, via the coupling, the distal end of the shaft with the end effector assembly. | 03-24-2011 |
20110071523 | Vessel Sealer with Self-Aligning Jaws - An end effector assembly of a surgical forceps, the end effector assembly including first and second jaw members disposed in opposing relation relative to one another. At least one of the jaw members is moveable from an open position to a closed position for grasping tissue therebetween. The jaw members including opposing sealing surfaces configured to grasp tissue therebetween. Each of the opposing sealing surfaces has a knife channel defined therein. The opposing sealing surfaces of the first and second jaw members are shaped complementarily to one another to align the knife channels of the first and second jaw members upon movement from the first position to the second position. | 03-24-2011 |
20110071524 | OPHTHALMIC SURGICAL DEVICE FOR CAPSULOTOMY - A surgical device and procedure are provided for performing microsurgery, including a capsulotomy of a lens capsule of an eye. The device has an elastically deformable cutting element mounted within an elastomeric suction cup. The suction cup is attached to an arm for manipulating the device. The device can be inserted into the anterior chamber of the eye, through a corneal incision, to cut a piece from the anterior portion of the lens capsule of the eye. The device is secured against the lens capsule using suction applied by one or more suction elements. The device is then removed from the eye, with the cut piece of membrane retained within the device by suction. | 03-24-2011 |
20110077645 | Electrosurgical Pencil with Synchronous Evacuation Function - An electrosurgical pencil with synchronous evacuation function includes a pencil body defined with a first containing space and a second containing space therethrough. The first containing space is adapted to contain an electropencil. The second containing space is adapted to be an evacuation passage. A first front end of the electropencil is mounted with a replaceable electrode. A first rear of the electropencil is adapted to connect to an electric wire connected to a current generator. A second front end of the second containing space is integrally formed a tubular body having an opening. A second rear end of the second containing space is mounted with a connector. The connector is connected to a suction instrument with a negative pressure via a soft tube. When the end portion of the electrode operates, the opening of the evacuating passage draws smoke and blood at the same time. | 03-31-2011 |
20110082456 | SURGICAL SNARE WITH ELECTROSURGICAL TIP AND METHOD OF USE - A medical device includes a tissue dissector and a snare loop on a common shaft. At least the distal tip of the snare loop is energizable to function as an electrosurgical element for tissue dissection. In use the snare loop is partially extended from the shaft to expose the electrosurgical element for electrosurgical dissection, and the snare loop is fully extended from the shaft to deploy the snare loop for retrieval and positioning of an implant such as a gastric banding device. The snare loop may be deployed through a pair of jaws also mounted on the shaft for use in tissue dissection. | 04-07-2011 |
20110087221 | Vessel Sealer and Divider With Captured Cutting Element - A forceps includes a housing having a shaft extending therefrom. The shaft has an end effector assembly that defines a longitudinal axis therethrough. The end effector assembly includes first and second jaw members disposed in opposed relation and moveable from a first, open position to a second, closed position for grasping tissue therebetween and a knife. One or more jaw members include knife blade channels defined therein. Each knife blade channel includes a polygonal longitudinal cross-section defined therein. The knife includes a knife edge and a knife base. The knife base includes a corresponding polygonal longitudinal cross-section. The knife is configured to translate through the knife blade channels and the knife base is configured to slidingly engage the knife base channel having the polygonal cross section upon translation of the knife. In embodiments, the knife blade channel and the knife base have a T-shaped longitudinal cross-section. | 04-14-2011 |
20110092972 | Methods for Ultrasonic Tissue Sensing and Feedback - An ultrasonic surgical instrument including an ultrasonic transmission member having a proximal end and a distal end is provided. The instrument also includes an ultrasonically-actuated cutting element having a tissue contacting surface and a clamp member supported adjacent to the cutting element for clamping tissue. The clamp member includes a sensing mechanism that senses load variations. A handle member located at the proximal end of the transmission member moves the clamp member relative to the cutting element. Also, a feedback mechanism is operatively coupled to the sensing mechanism that supplies information related to the load variations where the output of the tissue cutting element is adjusted based on the sensed load variations. | 04-21-2011 |
20110098704 | ELECTRICAL ABLATION DEVICES - An electrical ablation apparatus comprises first and second electrodes. Each electrode comprises a first end configured to couple an energy source and a second end configured to couple to a tissue treatment region. An energy source is coupled to the first and second electrodes. At least one electrode is movable between a first position and a second position. A first necrotic zone having a first shape is created when the electrodes are energized in the first position and a second necrotic zone having a second shape is created when the electrodes are energized in the second position. At least one electrode may be pre-formed with a radius. | 04-28-2011 |
20110106077 | TREATMENT INSTRUMENT - This treatment instrument includes: a flexible wire that has a first end part and a second end part, and that has a treatment part at an intermediate part for conducting treatment within a body cavity; small-diameter parts where at least a portion of the outer circumferential face of the wire has a smaller diameter or is denuded relative to the rest; a bundled part where the wire is bundled so as to at least include the small-diameter parts; and a manipulation wire that is connected to this bundled part. | 05-05-2011 |
20110118734 | CAPSULARHEXIS DEVICE USING PULSED ELECTRIC FIELDS - A capsulorhexis apparatus is disclosed. An exemplary apparatus includes a cutting electrode device that in turn comprises a handle, a flexible ring having a single ring-shaped wire electrode embedded therein, and a shaft connecting the flexible ring to the handle, wherein the flexible ring is configured for insertion into an eye through an incision. The apparatus further includes a grounding electrode configured for placement in or on the eye, independently of the cutting electrode device, and a pulse generator electrically connected to the ring-shaped wire electrode and the grounding electrode and configured to supply pulsed power to the eye via the ring-shaped wire electrode and the grounding electrode | 05-19-2011 |
20110118735 | Electrosurgical device for creating a channel through a region of tissue and methods of use thereof - An electrosurgical device and methods are disclosed for creating a channel through a region of tissue. The device comprises an elongate member for receiving the energy from an electrical energy source. An electrical insulation layer surrounds the elongate member along the device proximal region. An electrode tip is coupled to the distal end of the elongate member for delivering the energy, the electrode tip being configured and sized for delivering the energy in a manner such that electrical arcing is generated in the region of tissue in order to create a channel through at least a portion of the region of tissue. An electrically insulative thermal shield is disposed between the electrode tip and the device proximal region for preventing arcing therebetween during the delivery of the energy and for thermally protecting the device proximal region from heat produced by the delivery of the energy through the electrode tip. | 05-19-2011 |
20110144641 | High-Intensity Pulsed Electric Field Vitrectomy Apparatus - A high-intensity pulsed electric field (HIPEF) vitrectomy apparatus is disclosed. An exemplary apparatus includes a HIPEF probe comprising at least one electrode disposed at a distal end of the HIPEF probe, such that the distal end is configured for insertion into an eye. Various embodiments include a probe shaft assembled from a modular end segment and one or more additional modular shaft segments, each of the modular end segment and one or more modular shaft segments in turn comprising at least two longitudinal channels adapted to accommodate an electrode unit. In some of these probe shafts, each of the modular end segment and one or more modular shaft segments has a central longitudinal channel, and the probe shaft further comprises an aspiration tube disposed within the central longitudinal channel. | 06-16-2011 |
20110172660 | Battery-Powered Electrosurgical Forceps With Multi-Turn Selectable-Ratio Transformer - An electrocautery surgical device includes a battery power source and radio-frequency signal generating circuitry electrically coupled to the battery power source and operable to deliver power to an electrosurgical forceps. The radio-frequency signal generating circuitry includes a transformer having a primary winding and a secondary winding. The primary winding includes first and second primary sub-windings. At least one switching component is electrically coupled to the first and second primary sub-windings and is operable to switch between engaging the first primary sub-winding and engaging the second primary sub-winding such that a current flows through the first and/or second primary sub-windings. The first and second primary sub-windings have a different number of turns such that the radio-frequency signal generating circuitry produces a different impedance value depending on which one of the first and second primary sub-windings is engaged. | 07-14-2011 |
20110184410 | ELECTROSURGICAL ELECTRODE WITH ELECTRIC FIELD CONCENTRATING FLASH EDGE - An electrode tip for use in performing electro surgical operative procedures to concentrate electrical energy communicated to the patient tissue is disclosed. The electrode tip includes a main body that can receive electrical energy from an electrosurgical generator. The main body includes a working surface defining a flash edge. The working surface communicates the electrical energy to patient tissue during an operative procedure. The flash edge concentrates the electrical energy as it is communicated to the patient tissue. The concentration of the electrical energy from the flash edge reduces excessive tissue damage surrounding an incision site and improves the efficiency of the electrode tip. | 07-28-2011 |
20110196367 | ABLATOR WITH IMPROVED CUTTING TIP - An ablator having an electrode positioned at a distal end is disclosed. The ablator may be configured such that the ablator includes an inner shaft having a plurality of distal slots therein and contained within an outer hollow shaft. The inner shaft may extend distally from a distal end of the outer, hollow shaft. The configuration of the distal end of the ablator may increase the operating efficiency of the ablator by reducing the power requirements. | 08-11-2011 |
20110230880 | Surgical Forceps - A forceps includes an end effector assembly. The end effector assembly includes first and second jaw members. At least one of the jaws is moveable with respect to the other between a spaced-apart position and at least one approximated position for grasping tissue therebetween. At least one of the jaw members is adapted to connect to a source of energy for sealing tissue disposed between the jaw members. A chamber is defined within and extends longitudinally along at least one of the jaw members. The chamber is configured to retain a fluid therein and includes a series of apertures disposed on a tissue-facing surface thereof such that, upon application of energy to the jaw member(s), fluid within the chamber is heated to thermally expand within the chamber and forcefully exit the apertures to divide tissue disposed between the jaw members. | 09-22-2011 |
20110238065 | SURGICAL CUTTING AND SEALING INSTRUMENT WITH REDUCED FIRING FORCE - A surgical instrument is provided that can comprise and end effector including two jaws and a cutting member configured to move between the jaws. In at least one embodiment, one or both of the jaws may be flexible, such that a jaw is configured to flex when gripping tissue. Further, at least one of the jaws may include a thin cross-sectional area such that the jaw flexes when gripping tissue. Additionally, in at least one embodiment, one or more compression elements may extend from the cutting member and may be configured to cause the jaws to close when the cutting member is advanced. The compression elements may comprise a roller and/or a low-friction material. Moreover, in at least one embodiment, one or both of the jaws may be precurved, away from the cutting member's longitudinal axis. Accordingly, in various embodiments, the overall force required to advance the cutting member and/or close the jaws may be reduced. | 09-29-2011 |
20110257650 | Battery Assembly for Battery-Powered Surgical Instruments - A battery assembly is used in battery-powered surgical instruments with handles having a battery chamber and different handle types. The battery assembly includes a housing having an exterior shape formed to removably connect with the battery chamber of the handles and a voltage-control circuit. The housing has at least one energy storage cell operable to power a signal generation assembly of the surgical instruments and a battery/handle interface having a plurality of connectors shaped to mate with a plurality of corresponding connectors within the battery chamber of the handles. The voltage-control circuit is operable to communicatively couple with and provide power to the signal generation assembly, detect which one of the handle types is connected to the housing, provide a first output in response to a detection of a first handle type, and provide at least a second output in response to a detection of a second handle type. | 10-20-2011 |
20110276048 | Surgical Forceps - A forceps includes a housing, a shaft, and an end effector assembly. The end effector assembly includes first and second jaw members. At least one of the jaw members is moveable with respect to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. A cutting member having a plurality of cutting edges symmetrically-disposed about a longitudinal axis thereof is disposed within the shaft and is longitudinally translatable between a retracted position and an extended position. The cutting member extends between the jaw members to cut tissue grasped therebetween when in the extended position. The cutting member is fixedly-oriented with respect to the shaft and is configured for translation between the jaw members to cut tissue therebetween when the jaw members are rotated with respect to the shaft between about zero degrees and about 180 degrees in at least one of the clockwise and counterclockwise directions. | 11-10-2011 |
20110276049 | Pinion Blade Drive Mechanism for a Laparoscopic Vessel Dissector - A surgical instrument comprises a handle assembly including an actuator mounted for manipulation through an actuation stroke. An elongate shaft extends distally from the handle assembly and defines a longitudinal axis. A reciprocating member extends at least partially through the elongate shaft, and is mounted for longitudinal motion through the elongate shaft in response to manipulation of the actuator through the actuation stroke. A drive mechanism includes a first rotating component coupled to the actuator about a first circumference to induce rotational motion in the first rotating component. A second rotating component is coupled to the first rotating component such that rotational motion in the first rotating component induces rotational motion in the second rotating component. The second rotating component is coupled to the reciprocating member about a second circumference such that rotational motion of the second rotating component induces longitudinal motion in the reciprocating member. The second circumference is greater than the first circumference. | 11-10-2011 |
20110288547 | Electrosurgical Plenum - An electrosurgical probe having a plenum which prevents contact of the active electrode with tissue, while simultaneously allowing a fluid/interfacing agents to contact the active electrode. | 11-24-2011 |
20110301598 | Electrocautery Cutting Instrument with Elastic Wire Loop - An electrocautery cutting instrument includes a shaft having a first handle at one end and an elastic wire loop at the other. An outer tube is longitudinally displaceable over the shaft to collapse and permit expansion of the wire loop. The wire loop is sized for surrounding the uterus during a gynecological procedure. The wire loop has bends that bias the loop into a planar configuration when the wire loop is in an expanded configuration. The distal portion of the wire loop is integrally formed of the same flexible wire as the proximal portion of the wire loop, but has a different cross-sectional shape from the proximal portion. | 12-08-2011 |
20110306972 | ELECTROSURGICAL INSTRUMENT EMPLOYING A THERMAL MANAGEMENT SYSTEM - An electrosurgical surgical instrument can comprise a handle and an end effector, wherein the end effector can comprise first and second jaws which can be opened and closed in order to capture tissue therebetween. In various embodiments, the first and second jaws can comprise one or more electrodes configured to apply a voltage across the tissue thereby causing current to flow through the tissue and, as a result, generate heat within the tissue. The surgical instrument can further comprise a fluid circulatory system embedded within at least a portion the end effector wherein, in at least one embodiment, the fluid can be dispensed from the fluid circulatory system and onto the jaws of the end effector and/or the tissue positioned between the jaws. | 12-15-2011 |
20120004657 | Electrosurgical Devices with Wire Electrode And Methods of Use Thereof - The invention provides an electrosurgical device and methods of use thereof. In one embodiment, the device may comprise a handle, a shaft distal to the handle, a first electrode tip and a second electrode tip adjacent a distal end of the shaft, with the first electrode tip spaced from the second electrode tip and wherein the first electrode tip comprises a first U-shaped electrode and the second electrode tip comprises a second U-shaped electrode, and at least one fluid outlet. In another embodiment, the device may comprise a handle, a shaft distal to the handle, and a first electrode and a second electrode adjacent a distal end of the shaft with the first electrode coplanar with the second electrode and comprising a wire electrode having a U-shape which surrounds a perimeter of the second electrode and is spaced from the second electrode by an aperture. | 01-05-2012 |
20120010614 | Optimal Geometries for Creating Current Densities in a Bipolar Electrode Configuration - An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly has a first jaw member having a first pair of tissue contacting surfaces and an insulator disposed therebetween. The end effector assembly also has a second jaw member that includes a second pair of tissue contacting surfaces, a pair of insulators disposed between the second pair of tissue contacting surfaces, and a cutting element disposed between the pair of insulators. The relative movement of the first jaw member toward the second jaw member causes the insulator of the first jaw member and the pair of insulators of the second jaw member to pinch tissue disposed between the first jaw member and the second jaw member. | 01-12-2012 |
20120022525 | ELECTROSURGICAL INSTRUMENT WITH SEPARATE CLOSURE AND CUTTING MEMBERS - In various embodiments, a surgical instrument is provided that may comprise an end effector for performing a surgical procedure on tissue, for example. The end effector may comprise a pair of jaws, a closure beam, and a cutting member. The closure beam and the cutting member may be releasably coupled together by an interlocking member such that movement of the cutting member may cause the closure beam to also move relative to the jaws and cause the jaws to close and grip tissue, for example. The interlocking member may then unlock, allowing the cutting member to move through the gripped tissue and relative to the closure beam. Additionally, the cutting member and closure beam may be operated by a single trigger, which may be configured to provide haptic feedback to a user at various stages. Further, the jaws may be electrically energized to deliver energy and/or seal the gripped tissue. | 01-26-2012 |
20120022526 | ELECTROSURGICAL CUTTING AND SEALING INSTRUMENT - A surgical instrument for supplying energy to tissue can comprise a jaw member comprising an electrode, wherein the electrode is configured to supply energy from a power source to captured tissue. The surgical instrument comprises a tissue-cutting element to transect the captured tissue. The rate of distal translation of the tissue-cutting element during the operational stroke is regulated by at least one biasing member, such as a spring, for example. | 01-26-2012 |
20120022527 | ELECTROSURGICAL CUTTING AND SEALING INSTRUMENT - A surgical instrument for supplying energy to tissue can comprise a jaw member comprising an electrode, wherein the electrode is configured to supply energy from a power source to captured tissue. The surgical instrument comprises a tissue-cutting element to transect the captured tissue. The rate of distal translation of the tissue-cutting element during the operational stroke may be regulated by a damper. The damper may have barrel and a plunger. | 01-26-2012 |
20120022528 | ELECTROSURGICAL CUTTING AND SEALING INSTRUMENT - A surgical instrument for supplying energy to tissue can comprise a jaw member comprising an electrode, wherein the electrode is configured to supply energy from a power source to captured tissue. The surgical instrument comprises a tissue-cutting element to transect the captured tissue. The rate of distal translation of the tissue-cutting element during the operational stroke may be regulated by an electromagnetic brake. | 01-26-2012 |
20120022529 | ELECTROSURGICAL CUTTING AND SEALING INSTRUMENT - A surgical instrument for supplying energy to tissue can comprise a jaw member comprising an electrode, wherein the electrode is configured to supply energy from a power source to captured tissue. The surgical instrument comprises a tissue-cutting element to transect the captured tissue. The rate of distal translation of the tissue-cutting element during the operational stroke may be regulated by at least one electromagnet and at least one electromagnetic engagement surface. | 01-26-2012 |
20120022530 | ELECTROSURGICAL CUTTING AND SEALING INSTRUMENT - A surgical instrument for supplying energy to tissue can comprise a jaw member comprising an electrode, wherein the electrode is configured to supply energy from a power source to captured tissue. The surgical instrument comprises a tissue-cutting element to transect the captured tissue. The surgical instrument may have a indicator to provide feedback signals during the operational stroke. The feedback signals assist in regulating the rate of distal translation of the tissue-cutting element. | 01-26-2012 |
20120029514 | SILANE COATING FOR MEDICAL DEVICES AND ASSOCIATED METHODS - A titanium electrosurgical instrument, such as a scalpel ( | 02-02-2012 |
20120035606 | Body Tissue Incision Apparatus - The body tissue harvesting instrument is provided with a cutter which is disposed at the distal end of an insertion member that is inserted into the body to sever tissue inside the body. The cutter includes a slit that extends from the distal end toward the base end; a first high-frequency electrode disposed along the two side edges of the slit on the outer surface of the cutter body and a second high-frequency electrode disposed at the base end of the slit; and a mechanism which is disposed on both sides of the distal end of the slit in the projection of the cutter body which rotates as a result of being pressed by the tissue, and which feeds the tissue toward the interior of the slit. Parts located on both sides of the distal end of the slit in the projection may mutually separate in the thickness direction. | 02-09-2012 |
20120041438 | Surgical Forceps Including Shape Memory Cutter - A forceps includes a housing having a shaft attached thereto. The shaft has an end effector assembly disposed at a distal end thereof. The end effector assembly includes a pair of jaw members disposed in opposing relation relative to one another. At least one of the jaw members is moveable relative to the other between a spaced apart position and an approximated position for grasping tissue therebetween. At least one shape memory cutting member is coupled to one of the jaw members. The shape memory cutting member(s) is transitionable between a retracted state and an extended state. In the extended state, the cutting member(s) extends between the jaw members to cut tissue disposed therebetween when the jaw members are in the approximated position. | 02-16-2012 |
20120046660 | Surgical Forceps - A forceps includes a housing having a shaft attached thereto and an end effector assembly disposed at a distal end of the shaft. The end effector assembly includes first and second jaw members disposed in opposed relation relative to one another. At least one of the jaws is moveable with respect to the other between a spaced-apart position and an approximated position for grasping tissue between the jaw members. A cutting assembly is disposed within a cavity defined within the first jaw member. The cutting assembly includes a cutting member that is rotatably coupled to the first jaw member and configured to rotate with respect to the first jaw member about a longitudinal axis thereof to cut tissue disposed between the jaw members. | 02-23-2012 |
20120046661 | HIGH-FREQUENCY TREATMENT INSTRUMENT - A high-frequency treatment instrument ( | 02-23-2012 |
20120059371 | Dynamic and Static Bipolar Electrical Sealing and Cutting Device - An end effector assembly includes opposed jaws moveable from an open to a closed position for grasping tissue therebetween. Each jaw includes an electrically conductive surface adapted to conduct electrosurgical energy through tissue disposed between the jaws. A static bipolar cutting portion including at least one electrically conductive cutting element and at least one insulating element having a first configuration is disposed on at least one of the jaws. The static cutting portion is configured to electrically cut tissue disposed between the jaws upon activation of the cutting element and at least one of an opposing sealing surface and an opposing cutting element. A dynamic cutting portion including at least one electrically conductive cutting element and at least one insulating element having a second configuration is disposed on at least one of the jaws. The dynamic cutting portion electrically transects tissue during movement relative to tissue. | 03-08-2012 |
20120059372 | Electrosurgical Instrument - An end effector assembly for an electrosurgical instrument is provided. The end effector assembly has a pair of first and second jaw members including respective seal having a width. Each of the seal plates adapted to connect to an energy source. The first and second jaw members are operable in a first mode of operation for treating tissue and a second mode of operation for separating tissue. The width of the seal plate of the first jaw member is smaller than the width of the seal plate of the second jaw member. In the second mode of operation the seal plate of the first jaw member is independently activatable from the seal plate of the second jaw member to facilitate the separation of tissue when the first and second jaw members are in one of the open and clamping positions. | 03-08-2012 |
20120078247 | ARTICULATION JOINT FEATURES FOR ARTICULATING SURGICAL DEVICE - An electrosurgical device comprises a body, an end effector, a cutting member, and a shaft. The end effector includes a pair of jaws that are operable to deliver RF energy to tissue that is clamped between the jaws. The cutting member is operable to sever tissue that is clamped between the jaws. The shaft extends between the body and the end effector. The shaft includes an articulation section that is operable to selectively position the end effector at non-parallel positions relative to the longitudinal axis of the shaft. Some versions include a rotation section that is distal to the articulation section. The rotation section is operable to rotate the end effector relative to the articulation section. | 03-29-2012 |
20120078248 | ARTICULATION JOINT FEATURES FOR ARTICULATING SURGICAL DEVICE - An electrosurgical device comprises a body, an end effector, a cutting member, and a shaft extending between the body and the end effector. The end effector includes a pair of jaws and at least one electrode operable to deliver RF energy to tissue clamped between the jaws. The cutting member is operable to cut tissue clamped between the jaws. The shaft includes an articulation section that is operable to selectively position the end effector at non-parallel positions relative to the longitudinal axis of the shaft. The articulation section may include beads, segments, asymmetric features, preformedly bent features, an integral hinge, a helical cutout or spring, clevis features, an angled joint, a beaded actuation linkage, and/or an offset pivot, among other things. The device may also include a crimped cutting member, a retroacting cutting member, dual pivoting jaws, and/or a wire tensioning assembly. | 03-29-2012 |
20120078249 | ULTRASONIC DEVICE FOR CUTTING AND COAGULATING - Apparatus and method to permit selective cutting and coagulation required in fine and delicate surgical procedures. The apparatus includes two body members having proximal ends and distal ends with jaw members located adjacent the body member's distal ends. The body members are joined at a pivot located adjacent to the first and second jaw members joining the first and second body members where the body members' rotation about the pivot defines a plane of rotation. The scissors are adapted for selective application of energy to at least one jaw member by a switch located in the plane of rotation. | 03-29-2012 |
20120083783 | SURGICAL INSTRUMENT WITH JAW MEMBER - A surgical instrument for supplying energy to tissue may comprise a handle, a trigger, an electrical input, and a shaft extending from the handle. The surgical instrument may comprise an end effector. The end effector may comprise a cammed compression surface. The end effector may comprise an electrode comprising a tapered tissue contacting surface. Some surgical instruments may comprise an overload member. | 04-05-2012 |
20120095460 | Surgical Forceps - A forceps includes an end effector assembly having first and second jaw members moveable with respect to one another between an open position and a closed position. A knife channel having a body and a base is defined within each jaw member. A knife assembly includes a knife having a bifurcated distal end. The bifurcated end includes first and second cutting members each defining an opposed cutting surface and having a tab at a free end thereof for translation through the base of a knife channel. The knife is translatable into the channels when the jaw members are in the closed position such that the cutting members are approximated when translated through the channels. The knife is also translatable into the channels when the jaw members are in the open position such that the cutting members are flexed apart when translated through the jaw members. | 04-19-2012 |
20120095461 | Power generating and control apparatus for the treatment of tissue - Apparatus, systems, and methods are provided for the generation and control of energy delivery in a dosage to elicit a therapeutic response in diseased tissue. A balloon catheter can have electrodes attached to a power generator and controller such that the balloon and electrodes contact tissue during energy treatment. Energy selectively may be applied to tissue based on measured impedance to achieve gentle heating. Calibration of the apparatus and identification of attached accessories by computing the circuit impedance prior to energy dosage facilitate regulation of power delivery about a set point. Energy delivery can be controlled to achieve substantially uniform bulk tissue temperature distribution. Energy delivery may beneficially affect nerve activity. | 04-19-2012 |
20120109123 | HARD TISSUE ABLATION SYSTEM - An electrosurgical system and method for treating hard and soft tissues in the body comprises a shaft, a distal end section, an active electrode associated with the distal end section, a first fluid supply adapted to deliver a first electrically conductive fluid to the target site, and a second fluid supply adapted to deliver a second electrically conductive fluid to the active electrode. The system is adapted to treat a wide variety of hard tissues such as, for example, bones, calcified structures, calcified deposits, teeth, plaque, kidney-stones, gall-stones and other types of tissue by generating plasma in the vicinity of the active electrode, and applying the plasma to the tissue or structures. | 05-03-2012 |
20120116394 | SURGICAL INSTRUMENT WITH PIVOTING COUPLING TO MODULAR SHAFT AND END EFFECTOR - A surgical instrument comprises a body and a shaft assembly. The body includes an energy source such as an ultrasonic transducer. The shaft assembly comprises an end effector and a transmission member such as an acoustic waveguide. The end effector may include a harmonic blade and a pivoting clamp member. One or both of the body or the shaft assembly includes a pivot feature. The pivot feature is operable to secure the shaft assembly to the body. The pivot feature may include a bar defining a pivot axis about which the shaft assembly pivots to secure the shaft assembly to the body. The pivot axis may be perpendicular to a longitudinal axis defined by the shaft assembly. The pivot feature may also include a pivoting cover configured to cover a recess in the body in which a proximal portion of the shaft assembly is received. | 05-10-2012 |
20120116395 | SURGICAL INSTRUMENT WITH MODULAR SHAFT AND TRANSDUCER - An ultrasonic surgical device comprises a detachable transducer module, a handle, and a shaft assembly. The shaft assembly includes an end effector having a harmonic blade. The transducer module is removably coupled with the shaft assembly to form an active assembly. The active assembly is removably coupled with the handle. The handle may include a resilient wall structure that deflects outwardly to receive the active assembly in a snap fit. The handle may include a pivoting latch feature to selectively retain the active assembly relative to the handle. | 05-10-2012 |
20120116396 | SURGICAL INSTRUMENT WITH MODULAR END EFFECTOR - A surgical instrument may include a reusable body assembly, a reusable transducer and blade assembly, and a disposable end effector. The transducer and blade assembly may be latched into the body assembly. One version may include an electrical connector on the latch member to electrically couple the body assembly to the transducer. The end effector may include an outer sheath portion coupleable to an outer sheath of the body assembly via a bayonet connection and a clamp arm pivotably coupled to the outer sheath portion. In some versions, an inner tubular member of the body assembly may also couple to an inner tube portion via a bayonet connection. The inner tubular member may include a key to align with a slot on the transducer and blade assembly to align the clamp arm with the blade. The end effector may alternatively couple via threading or ratcheting teeth having a slip feature. | 05-10-2012 |
20120116397 | ELECTROSURGICAL APPARATUS WITH RETRACTABLE BLADE - An electrosurgical apparatus with a retractable blade for use in cold plasma applications, electrosurgical cutting and mechanical cutting is provided. The electrosurgical apparatus employs a tip of the retractable blade as a sharp conductive point to generate a plasma beam or discharge. When the blade is retracted within the electrosurgical apparatus, it is electrically energized while an inert gas flows over it, producing a cold plasma discharge. In the de-energized state, the blade is advanced and used as a traditional, mechanical surgical blade. | 05-10-2012 |
20120123412 | Electrode with Rotatably Deployable Sheath - A sheath system for selectively covering a distal end of an electrocautery blade is provided. The sheath system includes a hub having a body portion defining a lumen therethrough and a sheath having a body portion defining a lumen therethrough. The lumen of the sheath is configured and dimensioned to operatively receive an electrocautery blade therein. The sheath is translatably associated with the hub such that rotation of the hub in a first direction results in axial movement of the sheath in a first direction to expose a distal end of the electrocautery blade and rotation of the hub in a second direction, opposite to the first direction, results in axial movement of the sheath in a second direction to cover the distal end of the electrocautery blade. The hub and the sheath may be concentric with one another. | 05-17-2012 |
20120143182 | ELECTROSURGICAL SEALING TOOL HAVING HAPTIC FEEDBACK - A surgical tool system includes an electrosurgical tool for sealing and transecting tissue and a tactile feedback system integrated onto a handle of the tool that generates relevant feedback in at least the form of haptic effects to the user. The tactile feedback alerts the user of tissue properties, i.e., when tissue located within jaws of the tool is completely sealed, when the tissue is ready to be cut, the cutting rate or speed, the quantity of tissue located within jaws of the tool, and whether a blood vessel is fully located within jaws of tool. In addition, the tactile feedback alerts the user to the operating status of energy application during the procedure. | 06-07-2012 |
20120143183 | PLASMA-GENERATING DEVICE HAVING A THROTTLING PORTION - The present invention relates to a plasma-generating device comprising an anode, a cathode, and intermediate electrodes. The intermediate electrodes and the anode form an elongate plasma channel that extends from a point between the cathode and the anode and through the anode. The plasma channel has a throttling portion with a throat having the smallest cross-sectional area of the entire plasma channel. As a plasma flow passes through the throttling portion, the plasma flow's speed is increased while its pressure is decreased. By varying the position of the throttling portion in the plasma channel properties of the discharged plasma can be changed. Plasma flows with different properties can be used for various applications, especially, medical procedures. | 06-07-2012 |
20120143184 | PLASMA-GENERATING DEVICE HAVING A PLASMA CHAMBER - A plasma-generating device comprising an anode, a plurality of intermediate electrodes, an insulator sleeve, and a cathode is disclosed. The plurality of the intermediate electrodes and the anode form a plasma channel. One of the intermediate electrodes forms a plasma chamber. The cathode has a tapering portion that projects downstream the distal end of the insulator sleeve only partially. Also, the distal-most point of the cathode is located some distance away from the plasma channel inlet. Methods of surgical use of the plasma-generating device are also disclosed. | 06-07-2012 |
20120150176 | CONTROL OF JAW COMPRESSION IN SURGICAL INSTRUMENT HAVING END EFFECTOR WITH OPPOSING JAW MEMBERS - A surgical instrument comprising a surgical instrument with opposing jaw members for clamping tissue therebetween. The surgical instrument may comprise a latch at a distal end of the end effector. The latch latches the distal end of the first jaw member to the distal end of the second jaw when the jaw members are in the closed position. Also, one of the jaw members may comprise a moveable tissue-contacting portion and a thermally-controlled spring adjacent to the tissue-contacting portion. The thermally-controlled spring is transitionable between a contracted state and an expanded state. The thermally-controlled spring may comprise a temperature-dependent, two-way memory effect, shape memory material. In the expanded state, the thermally-controlled spring urges the moveable tissue-contacting portion in a direction toward the other jaw member when the jaw members are in the closed position. | 06-14-2012 |
20120150177 | COATING SUITABLE FOR SURGICAL INSTRUMENTS - A coating and devices using the coating are provided. The coating is applied in liquid form and dried or otherwise cured to form a durable adherent coating resistant to high temperatures and having optional hydrophobic properties. The coating formulation contains an aqueous formulation of silica, one or more fillers, and sufficient base, (e.g., potassium hydroxide), to have a pH exceeding about 10.5 during at least part of the formulation process. The formulation may contain a compound(s) that affects surface free energy, energy to make the cured coating hydrophobic. Such compounds include silanes containing halogens (e.g., fluorine or chlorine) and in particular silanes containing one or more hydrolyzable groups attached to at least one silicon atom and a group containing one or more halogens (e.g., chlorine or fluorine). A medical instrument (e.g., electrosurgical instrument) may be at least partially covered by a coating using the formulation. | 06-14-2012 |
20120157994 | ENDOSCOPIC RESECTION METHOD - Embodiments of the invention are directed to a method of excising tissue including injecting fluid into the submucosa to raise targeted tissue. A first electrode is positioned below the targeted tissue within the injected fluid and a second electrode is positioned adjacent a surface of the raised targeted tissue opposite the first electrode. Electrical current is applied between the first and second electrodes and the targeted tissue is excised with the second electrode. | 06-21-2012 |
20120165816 | COMBINED ULTRASOUND AND HF SURGICAL SYSTEM - The invention relates to a combined ultrasound and HF surgical system, including at least one ultrasound generator which operatively provides an excitation signal through which an ultrasound converter can generate an ultrasound vibration, at least one HF generator which operatively generates HF energy, and at least one ultrasound and HF instrument electrically connected with the HF generator and the ultrasound generator, wherein the ultrasound vibrations and the HF energy are introducible into biological tissue through the HF instrument which includes at least one ultrasound converter and at least one HF electrode. In order to be able to use HF energy and ultrasound energy simultaneously without damaging the instrument or wearing the it out, the system includes a protective device which prevents sparks operatively generated through HF energy or reduces the probability of occurrence of the sparks. | 06-28-2012 |
20120191089 | SYSTEMS AND METHODS FOR TURBINATE REDUCTION - The present disclosure includes an electrosurgical apparatus for treating tissue at a target site. The apparatus has a shaft with a proximal end and a distal end, and the distal end includes an active disposed laterally on the shaft distal end and return electrode. The return electrode may have a plurality of apertures through it, which are fluidly connected to a fluid delivery element, operable to deliver a conductive fluid to the shaft distal end. The return electrode may encircle at least a portion of the shaft and may extend distally and proximally from the active electrode. | 07-26-2012 |
20120191090 | GUIDE DEVICE - Provided is a guide device including a cylindrical insertion part that is inserted into a body and that opens near a distal end thereof and on a proximal side thereof, a perforating part that is disposed at the distal end of the insertion part and that perforates tissue, a moving part disposed near the distal end of the insertion part so as to be displaceable between a nearby position near the insertion part and a farther position farther away from the insertion part than the nearby position, a biasing mechanism that biases the moving part in a direction away from the insertion part, and a displacement-detecting mechanism that detects displacement of the moving part in the body. | 07-26-2012 |
20120209263 | Surgical Instrument with Dispensable Components - A surgical instrument includes an active electrode coupled to a source of electrosurgical energy. The active electrode includes a tissue-contacting surface on an exterior surface of the instrument such that the tissue-contacting surface of the active electrode may intimately engage tissue. A replacement electrode includes a tissue-contacting surface, and is located in an interior cavity of the instrument. A seal is formed between the active electrode and the interior cavity of the instrument such that the tissue-contacting-surface of the replacement electrode is isolated from contamination exposed to the exterior of the instrument. The active electrode is removable from the instrument to expose the tissue-contacting surface of the replacement electrode, and the replacement electrode is connectable to the source of electrosurgical energy when the active electrode is removed. | 08-16-2012 |
20120215219 | Apparatus with Multiple Channel Selective Cutting - A forceps includes an end effector assembly and one or more cutting blades. The end effector assembly defines a longitudinal axis and has a pair of jaw members selectively positionable relative to one another about a pivot. One or more of the jaw members includes an electrically conductive tissue engaging surface adapted to connect to an electrosurgical energy source. One or more of the jaw members includes two or more blade channels defined therein and extending therealong. The one or more cutting blades are selectively movable within one or more of the two or more blade channels. | 08-23-2012 |
20120221002 | ELECTRICAL ABLATION DEVICES AND METHODS - An ablation apparatus may generally comprise an elongated body having a proximal end and a distal end and a non-conductive tip at the distal end, a conductive sheath at least partially surrounding a portion of the elongated body intermediate the proximal end and the tip, and an electrical conductor electrically connected to the conductive sheath. The ablation apparatus may comprise a first electrode having a first diameter and a plurality of second electrodes each having a second diameter, wherein the first diameter is greater than the second diameter. Methods of using the ablation apparatus are also described. | 08-30-2012 |
20120221003 | System and Method for a Physiochemical Scalpel to Eliminate Biologic Tissue Over-resection and Induce Tissue Healing - Removal of damaged tissue itself can enable biosynthetic activity in vivo as an unburdened homeostatic or repair response. By removing a biologic and mechanical irritant, the lesion site can be altered to a more favorable perturbation-specific mechanotransductive environment supportive of differentiated gene expression. One aspect of one embodiment of the present invention provides an engineered irrigant that produces ion exchanges in tissues for example deliver of protons which interact with biology tissues. | 08-30-2012 |
20120226275 | Vessel Sealing Instrument With Cutting Mechanism - An end effector assembly for use with an instrument for sealing and cutting tissue includes a pair of opposing first and second jaw members movable relative to the to grasp tissue therebetween. Each jaw member including a jaw housing and an electrically conductive surface adapted to connect to a source of electrosurgical energy such that the electrically conductive surfaces are capable of conducting electrosurgical energy through tissue held therebetween to effect a tissue seal. One of the electrically conductive surfaces including a channel defined therein and extending along a length thereof that communicates with a nozzle disposed in the jaw housing. The nozzle is configured to direct high pressure fluid from a fluid source into the channel for cutting tissue grasped between the jaw members. | 09-06-2012 |
20120232552 | METHOD AND APPARATUS FOR MINIMALLY INVASIVE INSERTION OF INTERVERTEBRAL IMPLANTS - A dilation introducer for orthopedic surgery is provided for minimally invasive access for insertion of an intervertebral implant. The dilation introducer may be used to provide an access position through Kambin's triangle from a posterolateral approach. A first dilator tube with a first longitudinal axis is provided. A second dilator tube may be introduced over the first, advanced along a second longitudinal axis parallel to but offset from the first. A third dilator tube may be introduced over the second, advanced along a third longitudinal axis parallel to but offset from both the first and the second. An access cannula may be introduced over the third dilator tube. With the first, second, and third dilator tubes removed, surgical instruments may pass through the access cannula to operate on an intervertebral disc and/or insert an intervertebral implant. | 09-13-2012 |
20120259330 | MEDICAL TREATMENT DEVICE - In order to reliably cut off a living tissue by using a microwave in a surgical operation without causing excessive damage to the living tissue or without bleeding, it is necessary to suppress energy attenuation until the microwave reaches electrode blades for nipping, coagulating, and cutting off a tissue. However, it is difficult to suppress the energy attenuation. The present invention relates to a medical treatment device capable of reliably cutting off a living tissue by using a microwave while sealing vasculature by coagulating the living tissue without excessively damaging the living tissue. Specifically, the present invention relates to a medical treatment device including a movable first electrode blade connected to an external conductor and a fixed second electrode blade connected directly to a central electrode. The medical treatment device has a function of holding a living tissue between the movable first electrode blade and the fixed second electrode blade, coagulating the living tissue by supplying a microwave from the fixed second electrode blade, and cutting off the living tissue by turning the movable first electrode blade. In the medical treatment device, a turning mechanism for the movable first electrode blade is arranged at a certain clearance from the central electrode. | 10-11-2012 |
20120271304 | ELECTROSURGICAL DEVICE WITH IMPROVED INCISION - To achieve a safe transition from the ignition of a plasma in incision mode to the combustion of the plasma during a cutting mode, an electromedical device to supply an instrument with electrical power is equipped with an ignition recognition mechanism formed by a sensor device. This ignition recognition mechanism switches the HF generator provided in the device from an incision operating mode to a cutting operating mode as soon as ignition is recognized. The switching is brought about by the switching of an HF modulation from a low crest factor in the incision operating mode to a high crest factor in the cutting operating mode. | 10-25-2012 |
20120277742 | METHODS AND DEVICES FOR REMOVING OMENTAL TISSUE - The invention relates to a method of treating obesity, insulin resistance and co-morbidities of these conditions by removing tissue from the abdomen. More specifically, it relates to a method of removing abdominal fat and omentum to which the fat is attached, in order to improve health. The invention includes a device for safely removing this tissue material | 11-01-2012 |
20120283727 | Surgical Forceps - A forceps includes an end effector assembly having first and second jaw members disposed in opposed relation relative to one another. One (or both) of the jaw members is moveable with respect to the other from a spaced-apart position to an approximated position for grasping tissue therebetween. A knife is longitudinally translatable with respect to the first and second jaw members between a retracted position, an intermediate position, and an extended position. The knife coupled to one or both of the jaw members via a pin-slot engagement such that, upon translation of the knife from the retracted position to the intermediate position, the first and second jaw members are moved to the approximated position to grasp tissue therebetween and such that, upon translation of the knife from the intermediate position to the extended position, the knife is extended between the jaw members to cut tissue grasped therebetween. | 11-08-2012 |
20120296332 | Thread-Like Knife for Tissue Cutting - An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly includes a pair of opposing jaw members configured to grasp tissue therebetween. The assembly also includes a thread-like member having a first end coupled to at least one jaw member and a drive member coupled to a second end of the thread-like member. The drive member is configured to position the thread-like member between a first position and a second position, wherein the thread-like member cuts tissue when positioned in the second position. | 11-22-2012 |
20120303022 | Endovascular Tissue Removal Device - A monopolar electrosurgical apparatus is disclosed which includes a tissue removal device having electrical, mechanical and chemical tissue removal capabilities. The device can be operated to use any of its tissue removal capabilities alone or in combination with one or more of the other capabilities. | 11-29-2012 |
20120330308 | Forceps - A forceps includes first and second shaft members each having a jaw member disposed at a distal end thereof. The first and second shaft members are pivotably coupled to one another toward the distal ends thereof. One or both of the first and second shaft members is moveable relative to the other between an open position and a closed position for correspondingly moving the jaw members between a spaced-apart position and an approximated position. A knife assembly is also provided. The knife assembly includes a handle and a knife extending from the handle. The knife assembly is selectively translatable between a retracted position and an extended position, wherein the knife extends between the jaw members. The handle is disposed between the first and second shaft members and is configured to regulate a closing pressure of the jaw members. | 12-27-2012 |
20120330309 | Forceps - A forceps includes first and second shaft members, each having a jaw member disposed at a distal end thereof. The first and second shaft members are pivotably coupled to one another toward the distal ends thereof and are moveable relative to one another between an open position and a closed position for moving the jaw members between a spaced-apart position and an approximated position. A knife assembly including a handle and a knife extending from the handle is also provided. The knife assembly is selectively translatable between a retracted position and an extended position, wherein the knife extends between the jaw members. The handle is disposed between the first and second shaft members and is configured to block further closure of the first and second shaft members beyond the closed position, thereby defining a minimum gap distance between the jaw members. | 12-27-2012 |
20120330310 | MEDICAL TREATMENT APPARATUS AND CONTROL METHOD OF MEDICAL TREATMENT DEVICE - A medical treatment device to treat body tissues for conjugation, includes at least a pair of holding members configured to hold the body tissues, an energy output portion provided in at least one of the holding members and connected to an energy source to form a joined portion by supplying energy to the body tissues held by the pair of holding members and joining the body tissues, and a conjugation coating portion to a region from a neighborhood of a joined portion to coat joined surfaces with a substance capable of preventing fluid from invading during or after the body tissues being joined by adding the energy to the body tissues. | 12-27-2012 |
20130006240 | SURGICAL INSTRUMENT GUIDE - A surgical instrument guide for facilitating treatment of a target tissue is provided. The surgical instrument guide may be placed between two groups of tissue such that a first group of tissue is cut and a second group of tissue is protected from being cut. The surgical instrument guide may lift tissue and slide tissue along a surface so that a target tissue may be cut to a desired depth more easily during a surgical procedure. The surgical instrument guide may be releasably attachable to a surgical instrument or integrally formed therewith. | 01-03-2013 |
20130006241 | MEDICAL TREATMENT DEVICE, MEDICAL TREATMENT APPARATUS, AND OPERATION METHOD OF MEDICAL TREATMENT DEVICE - A medical treatment device configured to treat body tissues for conjugation includes a pair of holding members to hold the body tissues, an energy output portion provided in at least one of the holding members to join the body tissues by supplying energy to the body tissues, and a conjugation coating portion to coat contact surfaces of the body tissues with a substance capable of preventing fluid from invading. | 01-03-2013 |
20130018372 | Surgical ForcepsAANM Sims; Grant T.AACI LittletonAAST COAACO USAAGP Sims; Grant T. Littleton CO USAANM Collings; ChaseAACI HaydenAAST IDAACO USAAGP Collings; Chase Hayden ID USAANM Townsend; Jeffrey R.AACI LovelandAAST COAACO USAAGP Townsend; Jeffrey R. Loveland CO US - A forceps includes first and second shaft members each having a jaw member disposed at a distal end thereof. One (or both) of the first and second jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. The first jaw member includes a jaw frame fixedly engaged to the first shaft member and a disposable jaw housing releasably engageable with the jaw frame. The disposable jaw housing includes a knife assembly disposed therein. The knife assembly includes a knife blade biased toward an initial position, wherein the knife blade is disposed within the jaw housing. The knife blade is moveable between the initial position and an extended position, wherein the knife blade extends at least partially from the jaw housing to cut tissue grasped between the first and second jaw members. | 01-17-2013 |
20130030433 | Electrosurgical Tissue Sealer and Cutter - A surgical instrument comprises an end effector including a pair of jaw members configured to move with respect to one another between an open configuration and a closed configuration for clamping tissue. At least one jaw member includes an elongate cam slot extending in a longitudinal direction over a substantial a length a tissue clamping surface of the at least one jaw member. A plurality of electrically isolated, and longitudinally spaced electrodes is supported by the tissue clamping surface and is configured to deliver electrosurgical energy to tissue. A reciprocating member engages the elongate cam slot and is extendable to a sealing position with respect to each of the electrodes to define a predetermined gap distance between a particular electrode and an opposing tissue clamping surface. | 01-31-2013 |
20130035687 | INSTRUMENT FOR THE FUSION AND CUTTING OF BLOOD VESSELS - An instrument suitable for minimal invasive surgery. The instrument can be introduced into a body, for example, through a trocar, and has two arms and a centrally guided knife for clamping vessels. The central guidance of the knife in at least one of the arms avoids disadvantages that could otherwise develop as a result of the off-center severing of coagulated tissue. Moreover, the clean central guidance of the knife results in lower wear on the knife. Thus, a better cut quality and a longer service life of the knife can be achieved. | 02-07-2013 |
20130041371 | MOTORIZED SURGICAL CUTTING AND FASTENING INSTRUMENT HAVING A MAGNETIC DRIVE TRAIN TORQUE LIMITING DEVICE - A surgical cutting and fastening instrument. The instrument comprises an end effector and a shaft connected to the end effector. The shaft comprises a drive train for powering the end effector. The instrument also comprises an electric, DC motor connected to the drive train for powering the drive train. The instrument also comprises a torque-limiting device connected between to an output pole of the motor and an input pole of the drive train. | 02-14-2013 |
20130041372 | Surgical Snare with Electrosurgical Tip and Method of Use - A medical device includes a tissue dissector and a snare loop on a common shaft. At least the distal tip of the snare loop is energizable to function as an electrosurgical element for tissue dissection. In use the snare loop is partially extended from the shaft to expose the electrosurgical element for electrosurgical dissection, and the snare loop is fully extended from the shaft to deploy the snare loop for retrieval and positioning of an implant such as a gastric banding device. The snare loop may be deployed through a pair of jaws also mounted on the shaft for use in tissue dissection. | 02-14-2013 |
20130046303 | Surgical Forceps - A forceps includes an end effector assembly having first and second jaw members. One (or both) of the first and second jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes a longitudinally-extending blade channel defined therein. An electrical cutting insert is releasably engageable within the blade channel of the jaw member such that the jaw member is transitionable between a mechanical cutting mode, wherein the electrical cutting insert is disengaged from the jaw member to permit reciprocation of a knife blade through the blade channel for mechanically cutting tissue grasped between the jaw members, and an electrical cutting mode, wherein the electrical cutting insert is engaged within the blade channel of the jaw member for electrically cutting tissue grasped between the jaw members. | 02-21-2013 |
20130046304 | TISSUE EXTRACTION DEVICES AND METHODS - The tissue cutting device comprises an elongated assembly including both an outer sleeve and an inner sleeve. The outer sleeve has a tissue-receiving window, and the inner sleeve has a distal end which cuts tissue as the inner sleeve is advanced past the window. The tissue is received into a lumen of the inner sleeve, and the inner sleeve lumen is typically enlarged in a proximal direction to reduce the tendency of resected tissue to lodge therein. The tissue displacement member is optionally provided at a distal end of the outer sleeve to further aid in dislodging tissue which becomes captured in a distal end of the inner sleeve of the lumen. | 02-21-2013 |
20130046305 | Cardiac Electrosurgery - Devices and methods are disclosed for providing access to the pericardial cavity while reducing risk of myocardial damage. The methods include maintaining the positions of a puncture device and of a portion of a parietal pericardium relative to one other while delivering energy from the puncture device to create a channel through the pericardium. Additional embodiments disclosed include delivering a pulse or pulses of energy to the parietal pericardium and attempting to advance the puncture device through the parietal pericardium between deliveries of energy pulses. | 02-21-2013 |
20130079772 | METHOD FOR PERFORMING LUNG VOLUME REDUCTION - This invention relates to surgical instruments for applying, energy to tissue. In one embodiment, an elongated introducer has a handle portion that includes an interior chamber that is supplied with a biocompatible liquid under pressure. An energy source causes a liquid-to-vapor phase change within the interior chamber and ejects a flow of vapor media from the working end of the introducer. The flow of vapor is controlled by a computer controller to cause a selected pressure, a selected volume of vapor, and an optional aspiration of vapor condensate. Contemporaneous with tissue contact, the vapor undergoes a vapor-to-liquid phase transition which delivers large amount of energy to the targeted tissue. In one embodiment, the system is configured for volumetric removal of tissue by means of high velocity ejection of a vapor media from a first vapor port proximate to soft tissue wherein the vapor-to-liquid phase change of the media applies energy to the tissue. The system provides a second port coupled to a suction source that cooperates with the first vapor port to suction tissue debris from the targeted site. | 03-28-2013 |
20130085496 | Surgical Forceps - A forceps includes an end effector assembly having first and second jaw members, each jaw member including a tissue sealing plate disposed thereon. One or both of the jaw members is movable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One or both of the jaw members defines a first channel extending therethrough and an opening in the tissue sealing plate thereof that is aligned with the first channel. A stop member having a pre-determined configuration is removably engaged within the first channel. At least a portion of the stop member is configured to extend through the opening of the tissue sealing plate to define a minimum gap distance between the tissue sealing plates of the jaw members when the jaw members are disposed in the approximated position. | 04-04-2013 |
20130085497 | Articulating Ablation And Division Device With Blood Flow Sensing Capability - A laparoscopic liver resection device is described. The device combines the Radiofrequency Ablation (RFA) technology with a cutting mechanism, a blood-flow sensor and a flexible actuation mechanism to simultaneously coagulate and cut the liver tissue and detect the presence of blood flow to confirm avascularity. The present invention eliminates the risk of excess bleeding due to cutting too deep and reduces recovery time and the time spent on re-coagulation of coagulated areas, thereby shortening duration of surgery. Also embodiments prevent excess ablation by stopping ablation activity on the target tissue as soon as insufficient or no blood flow in the target tissue is detected. Thus a closed loop control for a bloodless tissue/organ division method is provided. | 04-04-2013 |
20130090654 | COMBINATION CYSTOTOME AND ACCESS NEEDLE DEVICE AND METHOD - A system and method are provided for accessing and cannulating a target mass. The system includes a combined cystotome and access needle that provides for efficient operation. The access needle may be embodied as a polymeric sheath with a piercing stylet configured to extend beyond its distal end. The device embodiments allow a user to access and cannulate a target site such as, for example, a pancreatic pseudocyst with a single device. The device is also configured to allow introduction of a wire guide such that the cannulated target site can readily receive a wire-guided stent, or a stent delivered over the access needle. | 04-11-2013 |
20130110108 | SINGLE INSTRUMENT ELECTROSURGERY APPARATUS AND ITS METHOD OF USE | 05-02-2013 |
20130123781 | TARGETING MICROBUBBLES - This invention related to manufactured microbubbles, as well as methods of using manufactured microbubbles, for example, in medicinal applications. The invention pertains to the physical structure and materials of the microbubbles, as well as to methods for manufacturing microbubbles, methods for targeting microbubbles for specific medicinal applications, and methods for delivering microbubbles in medical treatment. | 05-16-2013 |
20130123782 | TRIGGER LOCKOUT MECHANISM - A medical instrument includes a housing, an RF generation circuit activation button coupled to an activation button lever supported by the housing. The activation button lever includes a top surface, the activation button lever rotatable about an activation button pivot point. A cutting blade is operably coupled to a sheath. A control lever is supported by the housing and pivotally coupled to a trigger lever including a projection to engage the top surface of the activation button lever and to control the actuation of the cutting blade by actuating the sheath in a distal direction by rotatably moving the control lever proximally about a trigger pivot point. The top surface of the activation button lever and the projection of the trigger lever remain engaged to prevent actuation of the cutting blade until the activation button is fully rotatably moved proximally about the activation button pivot. | 05-16-2013 |
20130123783 | SURGICAL DEVICE WITH POWERED ARTICULATION WRIST ROTATION - A surgical instrument for treating tissue, the instrument including a housing and a shaft with an articulating portion and an end effector. The surgical instrument including a first casing connected to and rotatable with the proximal end of said shaft with an internal frame housed within the first casing and a plurality of posts supported by the internal frame and connected on their distal ends to at least one drive wire, and connected on their proximal ends to a threaded shaft; and a second casing connected to the first casing and rotatable therewith, said second casing housing the threaded shafts. The surgical instrument includes a first electric motor driving a first gear interfacing with the threaded shafts such that a first pair of the plurality of threaded shafts rotate in the same direction and cause the articulating portion to articulate in a first plane. | 05-16-2013 |
20130131672 | OPEN VESSEL SEALING INSTRUMENT WITH PIVOT ASSEMBLY - An open electrosurgical forceps includes a pair of first and second shaft members each having a jaw member disposed at its distal end. The jaw members are movable about a pivot assembly from an open position in spaced relation relative to one another to a closed position wherein the jaw members cooperate to grasp tissue. Each of the jaw members includes an electrically conductive sealing surface for communicating electrosurgical energy through grasped tissue. One or both of the jaw members includes a knife channel defined along its length. The pivot assembly includes a knife slot and is configured to prevent reciprocation of a cutting mechanism when the jaw members are disposed in the open position and to permit reciprocation of the cutting mechanism when the jaw members are disposed in the closed position. An actuator selectively advances the cutting mechanism from a first position to at least one subsequent position. | 05-23-2013 |
20130138101 | Open Vessel Sealing Instrument and Method of Manufacturing the Same - An open electrosurgical forceps is provided and includes a pair of first and second shaft members each having a jaw member at a distal end thereof. The jaw members are movable from a first position in spaced relation relative to one another to a subsequent position wherein the jaw members cooperate to grasp tissue therebetween. A cutting mechanism is adapted to selectively and removably couple to one of the first and second shaft members. The cutting mechanism includes a cutting trigger for selectively advancing a knife blade extending therefrom through a knife channel defined along one or both of the jaw members. The first shaft member includes a stop feature formed thereon and the second shaft feature includes a stop member formed thereon. The stop feature and stop member configured to selectively engage one another to limit rotation of the first and second shaft members with respect to one another. | 05-30-2013 |
20130138102 | Electrosurgical Instrument with a Knife Blade Lockout Mechanism - An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly operably coupled to the shaft includes a pair of first and second jaw members. One or both of the first and second jaw members is movable from an open configuration, to a clamping configuration. A knife blade assembly includes a knife blade translatable within the first and second jaw members. A knife blade lockout mechanism is in operative communication with the knife blade assembly and includes an elongated cam slot with a cam pin translatable therein from a distal end of the elongated cam slot corresponding to the knife blade lockout mechanism engaged with the knife blade assembly, to a proximal position corresponding to the knife blade lockout mechanism disengaged from the knife blade assembly. | 05-30-2013 |
20130138103 | ELECTROSURGICAL UNIT WITH MICRO/NANO STRUCTURE AND THE MANUFACTURING METHOD THEREOF - An electrosurgical unit having micro/nano structure formed thereon and the manufacturing method thereof are disclosed, in which the electrosurgical unit is formed by the irradiation of a laser beam upon a blade so as to have a hybrid of micro/nano elements formed on the surface of the blade. The application of the hybrid of micro/nano elements on the surface of the blade has proven to be a valuable asset not only in providing a non-stick surface and a good heat dissipation ability to the blade, but also in providing a electrosurgical blade that will not release any toxic material under high temperature. | 05-30-2013 |
20130138104 | OPEN VESSEL SEALING INSTRUMENT WITH PIVOT ASSEMBLY - An open electrosurgical forceps includes a pair of first and second shaft members each having a jaw member disposed at its distal end. The jaw members are movable about a pivot assembly from an open position in spaced relation relative to one another to a closed position wherein the jaw members cooperate to grasp tissue. Each of the jaw members includes an electrically conductive sealing surface for communicating electrosurgical energy through grasped tissue. One or both of the jaw members includes a knife channel defined along its length. The pivot assembly includes a knife slot and is configured to prevent reciprocation of a cutting mechanism when the jaw members are disposed in the open position and to permit reciprocation of the cutting mechanism when the jaw members are disposed in the closed position. An actuator selectively advances the cutting mechanism from a first position to at least one subsequent position. | 05-30-2013 |
20130172885 | TREATMENT DEVICE AND TREATMENT METHOD - A surgical device which is configured to apply energy to living tissue and to be used to perform a surgical procedure includes a grasping portion, an incising portion, an introduction portion and a treatment portion. The grasping portion grasps the living tissue having a first surface and a second surface. The incising portion is movable forward and backward with respect to the living tissue and incises the living tissue. The introduction portion is movable forward and backward with respect to the living tissue and introduces a biocompatible material, which is chemically bound with the living tissue, to a space between the first surface and the second surface. The treatment portion is configured to apply high-frequency energy and thermal energy to the living tissue. | 07-04-2013 |
20130190757 | MOTORIZED SURGICAL CUTTING AND FASTENING INSTRUMENT HAVING HANDLE BASED POWER SOURCE - A surgical cutting and fastening instrument. The instrument comprises an end effector, a shaft connected to the end effector, and a handle connected to the shaft. The handle comprises an electric, DC motor connected to a drive train in the shaft for powering the drive train. The handle also comprises a power pack that comprises at least one charge-accumulating device connected to the DC motor for powering the DC motor. | 07-25-2013 |
20130197514 | USE OF IMP3 AS A PROGNOSTIC MARKER FOR CANCER - Provided herein are methods and compositions for the prognostic evaluation of a patient suspected of having, or having, cancer by assessing the expression of IMP3 in a biological sample of a patient. Methods can be used at the time of initial diagnosis of malignant tumors to identify a group of patients with a high potential to develop progression or metastasis later. Therefore, methods not only are able to provide very useful prognostic information for patients but also can help clinicians to select a candidate patient likely to benefit from early and aggressive cancer therapy. Methods and compositions for the treatment of cancer associated with expression of IMP3 are also provided. | 08-01-2013 |
20130218159 | MULTI-FUNCTIONAL MEDICAL DEVICE AND RELATED METHODS OF USE - A medical device including an elongate member having a proximal end and a distal end and an end-effector disposed at the distal end of the elongate member is disclosed. The end-effector further includes a plurality of arms, which may pivot or move relative to one another. Further, each arm includes an inner edge defining a cutting edge, and an outer edge having at least one geometric feature for manipulating tissue. | 08-22-2013 |
20130226175 | COATING SUITABLE FOR SURGICAL INSTRUMENTS - A coating and devices using the coating are provided. The coating is applied in liquid form and dried or otherwise cured to form a durable adherent coating resistant to high temperatures and having optional hydrophobic properties. The coating formulation contains an aqueous formulation of silica, one or more fillers, and sufficient base, (e.g., potassium hydroxide), to have a pH exceeding about 10.5 during at least part of the formulation process. The formulation may contain a compound(s) that affects surface free energy, energy to make the cured coating hydrophobic. Such compounds include silanes containing halogens (e.g., fluorine or chlorine) and in particular silanes containing one or more hydrolyzable groups attached to at least one silicon atom and a group containing one or more halogens (e.g., chlorine or fluorine). A medical instrument (e.g., electrosurgical instrument) may be at least partially covered by a coating using the formulation. | 08-29-2013 |
20130226176 | Electrode Device of an Electrosurgical Instrument - An electrode device of an electrosurgical instrument is known, comprising at least one electrically conductive electrode section and an electrically insulating carrier section, wherein both the electrode section and the carrier section are made from a ceramic material. In order to improve the mechanical and electrical properties and in order to simplify the production, a green body of the carrier section and a green body of the electrode section are connected to each other, in particular materially, to form a single composite green body and are jointly sintered. | 08-29-2013 |
20130231661 | ELECTROSURGICAL MIDLINE CLAMPING SCISSORS - The electrosurgical midline clamping scissors includes a pair of elongate arms pivotal about each other at a common axis. Each arm includes a finger loop at one end and a jaw at the opposite end. Each jaw includes a midline cutting section and a grasping section on either side of a cutting blade in the cutting section. A wire is operatively connected from a generator to each arm to transmit electricity or radio frequency through electrical conductors inside the arms. The electrical conductors extend into the jaws to form a bipolar configuration. During use, as the jaws close, the jaws complete the circuit and simultaneously clamp, cut and electrocoagulate the target tissue. | 09-05-2013 |
20130253510 | MEDICAL INSTRUMENT AND METHOD OF PERFORMING A SURGICAL PROCEDURE WITH THE MEDICAL INSTRUMENT - A medical instrument having an elongate frame with proximal and distal ends. An operating assembly is at a proximal region of the frame with a working assembly at a distal region of the frame. The working assembly has a tip with a leading free end to be engaged with a human body at an operation site. The working assembly has at least one cautery component that: a) contacts a human body at the cutting location; and b) is operable to generate a current that alters a contacted portion of the human body at the cutting location. An insulating material is located at least one of: i) at the leading free end; and ii) between the at least one cautery component and the leading free end so that current does not conduct from the at least one cautery component to body tissue during a medical procedure. | 09-26-2013 |
20130274740 | SURGICAL INSTRUMENT FOR TISSUE REMOVAL - An electrosurgical instrument for removal of tissue from a patient. The electrosurgical instrument includes a handle portion having a pair of end effectors configured to remove tissue, connected to and supported by the handle portion for relative movement generally toward one another. One of the end effectors includes a conductive cutting portion that is configured to receive electrical energy from an electrical energy source. The other of the end effectors includes an opposing portion. The opposing portion is brought into a position generally opposing the conductive cutting portion during relative movement of the end effectors toward one another. When electrical energy is conducted through the conductive cutting portion, removal and cauterization of the tissue from the patient is facilitated. | 10-17-2013 |
20130282008 | MICRO-RESECTING AND EVOKED POTENTIAL MONITORING SYSTEM AND METHOD - Surgical micro-resecting and evoked potential monitoring system and method. The system includes a micro-resecting instrument, handpiece, and evoked potential monitor. The instrument includes an outer tube forming a cutting window at which a cutting tip of an inner member is located. A hub assembly rotatably maintains the inner and outer members. An electrically non-conductive material covers a region of the outer tube, and wiring is connected to an exposed surface of the outer tube. The instrument defines a probe surface proximate the cutting window as part of an electrical pathway with the wiring. The hub assembly is powered by the handpiece, and the wiring is connected to the evoked potential monitor. Evoked potential monitoring is performed at the probe surface via stimulation energy delivered along the electrical pathway, and tissue/bone resection occurs with rotation of the cutting tip. | 10-24-2013 |
20130296853 | BALLOON CATHETER AND ELECTRIFICATION SYSTEM - A balloon catheter is provided with a balloon on the tip of a main shaft. The balloon catheter is provided with: protruding parts that are furnished on the outer surface of the balloon and protrude outward from the outer surface of the balloon at least when the balloon is expanded; and electrodes that are furnished on the leading edges of the protruding parts in the direction of protrusion and are capable of transmitting energy to living tissue. The leading edge electrodes can thereby be delivered near the desired site of treatment by thrusting the protruding parts into living tissue and, in this configuration, energy is transmitted to said treatment site. | 11-07-2013 |
20130310833 | METHODS AND DEVICES FOR ACCESS ACROSS ADJACENT TISSUE LAYERS - Adjacent tissue layers can be accessed using a catheter device with a distal tip having a conductive portion including a first cutting feature and one or more projections extending from the first cutting feature towards an outer diameter of the distal tip. Electrical energy can be supplied to the conductive portion of the device to cut tissue. A stent can be delivered to form a fluid communication between the adjacent tissue layers. | 11-21-2013 |
20130325002 | HIGH FREQUENCY SURGICAL DEVICE AND HIGH FREQUENCY SURGICAL SYSTEM WITH A VOLTAGE LIMITER - A high frequency surgical device for generating a high frequency voltage for cutting and/or vaporizing biological tissue within a flushing liquid, in particular a conductive flushing liquid, including two output contacts at which an electrosurgical instrument is connectable and between which the HF voltage is provided during operations; a parallel resonant circuit which is electrically connected with the output contacts and in which the HF voltage is generated during operations, and wherein the HF voltage is configured for igniting an electric arc within the flushing liquid at the electrosurgical instrument. In order to provide an electrosurgical device for applications under a flushing liquid, wherein the flushing liquid is heated less and wherein the electrosurgical device provides better initial cutting properties, it is provided according to the invention that a voltage limiter is arranged between the parallel resonant circuit and the output contacts. | 12-05-2013 |
20130331837 | ELECTROSURGICAL INSTRUMENT WITH A KNIFE BLADE STOP - An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly operably coupled to a distal end of the shaft includes a pair of first and second jaw members one of which being movable from an open configuration for positioning tissue therebetween, to a clamping configuration for grasping tissue therebetween. A knife blade assembly includes a knife blade that is translatable within the first and second jaw members when the first and second jaw members are in the clamping configuration. The knife blade assembly includes a medial portion defining an opening therethrough having proximal and distal ends. A knife blade stop in operative communication with the knife blade assembly includes a pair of leading and trailing stops thereon that are configured to contact respective distal and proximal ends of the opening to limit translation of the knife blade assembly. | 12-12-2013 |
20130338666 | ENDOSCOPIC ELECTROSURGICAL JAWS WITH OFFSET KNIFE - A forceps includes an end effector assembly having first and second jaw members. Each jaw member includes a proximal flange having an inwardly-facing surface. The proximal flanges are coupled to one another for moving the jaw members relative to one another between a first position and a second position for grasping tissue therebetween. The inwardly-facing surfaces of the proximal flanges are disposed in abutting relation relative to one another. A knife is configured to move along a knife path defined along an outwardly-facing surface of one of the proximal flanges. The knife is movable between a retracted position and an extended position, wherein the knife extends between the jaw members to cut tissue grasped therebetween. | 12-19-2013 |
20130345702 | Instrument for Fusing and Severing Tissue - An instrument ( | 12-26-2013 |
20130345703 | METHOD FOR MANIPULATING OBJECTS EMPLOYING NANOTECHNOLOGY - A method for capturing small objects in a confined space such as an artery or duct in a body by bringing an elongated flexible body having a distally disposed operative head provided with a plurality of nanostructures into proximity with the object. When in proximity intermolecular forces are created between the nanostructures and the object that attract the object to the operative head. By application of high frequency electrical current the nanostructures act as electrical knives to cut away or cauterize an object. | 12-26-2013 |
20140005666 | SURGICAL FORCEPS | 01-02-2014 |
20140005667 | CLOSED FEEDBACK CONTROL FOR ELECTROSURGICAL DEVICE | 01-02-2014 |
20140005668 | SURGICAL INSTRUMENTS WITH FLUID MANAGEMENT SYSTEM | 01-02-2014 |
20140012257 | SYSTEM AND METHOD FOR RESECTING A VALVE - A system and method for resecting a valve in a patient, in which the system includes: a proximal frame and a distal frame opposite the proximal frame, each frame including a plurality of interconnectable frame segments, in which the proximal and distal frames are separated by an adjustable distance and positionable on opposite sides of the valve; an electrode, adjacent to the valve on at least one of the proximal and distal frames, that electrosurgically resects valve tissue; a proximal chamber and a distal chamber coupled to the proximal and distal frames, respectively, that allow passage of fluid and captures at least a portion of resected valve tissue, in which each chamber selectively operates in one of a radially collapsed mode and a radially expanded mode; and a drive system that adjusts the distance between the proximal and distal frames. | 01-09-2014 |
20140025070 | SURGICAL FORCEPS INCLUDING REPOSABLE END EFFECTOR ASSEMBLIES - A surgical forceps includes a housing having a movable handle coupled thereto and movable between an initial position and a compressed position. A drive bar is operably coupled to the movable handle such that movement of the movable handle between the initial and compressed positions effects longitudinal translation of the drive bar. The drive bar further includes a coupling member disposed at a distal end thereof. An end effector assembly includes first and second jaw members movable between spaced-apart and approximated positions. Each jaw member defines a cam slot. A cam pin is slidably disposed within the cam slot of each of the jaw members. The coupling member is configured to releasably engage the cam pin such that movement of the movable handle between the initial position and the compressed position effects movement of the jaw members between the spaced-apart position and the approximated position. | 01-23-2014 |
20140039493 | Electrosurgical Devices and Methods of Use Thereof - In some embodiments, an electrosurgical device includes a shaft, a first U-shaped electrode at a distal end of the shaft, and a second blade shaped electrode at the distal end of the shaft. The second electrode includes a spherical distal end. And the second electrode is substantially coplanar with the first electrode such that the first electrode surrounds a perimeter of the second electrode. The second electrode is spaced from the first electrode by an aperture. In some embodiments, an electrosurgical device includes a shaft, a first electrode at a distal end of the shaft defining an aperture and comprising a pointed tip, and a second electrode disposed at the distal end of the shaft that is substantially coplanar with the first electrode such that the first electrode surrounds a perimeter of the second electrode. The second electrode is spaced from the first electrode by the aperture. | 02-06-2014 |
20140046323 | ELECTROSURGICAL INSTRUMENT INCLUDING NESTED KNIFE ASSEMBLY - An electrosurgical instrument includes a handle assembly and an end effector assembly operatively coupled with the handle assembly. The end effector assembly includes a first jaw member including a first jaw housing and a first electrically conductive surface, a second jaw member including a second jaw housing and a second electrically conductive surface, and a knife assembly. The knife assembly includes a base member translatably disposed in the first jaw housing, a pivot portion coupled with the base portion, and a blade pivotally associated with the pivot portion. The knife assembly is transitionable between a retracted state in which the blade is disposed within the first jaw housing and an extended state in which the blade is disposed at least partially within the second jaw housing. | 02-13-2014 |
20140066928 | BATTERY PACK ATTACHED TO A CABLE - An article comprising: (i) a handheld device including (a) a housing, (b) a powered element within the housing: (ii) a battery pack, wherein the handheld device is connected by an external cable to a functional system, wherein the battery pack is attached to the external cable, and wherein the battery pack supplies power to the powered element. | 03-06-2014 |
20140088592 | PLASMA RESECTION ELECTRODE - Disclosed herein are embodiments of an electrosurgical device that include one or more floating electrodes and are specifically adapted to remove, resect, ablate, vaporize, denaturize, coagulate and form lesions in soft tissues, preferably in combination with a resectoscope, particularly in the context of urological, gynecological, laparoscopic, arthroscopic, and ENT procedures. Specific adaptations for urological and gynecological applications, for example BPH treatment, are also described. | 03-27-2014 |
20140100568 | JAW ASSEMBLIES FOR ELECTROSURGICAL INSTRUMENTS AND METHODS OF MANUFACTURING JAW ASSEMBLIES - A jaw assembly includes an electrically-conductive tissue-engaging structure, a jaw member including a support base, and a non-electrically conductive member including a first portion configured to engage the electrically-conductive tissue-engaging structure and a second portion configured to engage the support base of the jaw member. The non-electrically conductive member adapted to electrically isolate the electrically-conductive tissue-engaging structure from the jaw member. The electrically-conductive tissue-engaging structure and the non-electrically conductive member cooperatively define a longitudinally-oriented knife channel therethrough. | 04-10-2014 |
20140121662 | SURGICAL METHOD FOR TISSUE REMOVAL - A method for removal of tissue from a patient utilizing an electrosurgical instrument. The electrosurgical instrument includes a handle portion having a pair of end effectors configured to remove tissue, connected to and supported by the handle portion for relative movement generally toward one another. One of the end effectors includes a conductive cutting portion that is configured to receive electrical energy from an electrical energy source. The other of the end effectors includes an opposing portion. The opposing portion is brought into a position generally opposing the conductive cutting portion during relative movement of the end effectors toward one another. When electrical energy is conducted through the conductive cutting portion, removal and cauterization of the tissue from the patient is facilitated. | 05-01-2014 |
20140148806 | SURGICAL INSTRUMENTS AND END EFFECTORS THEREFOR - An end effector includes a first jaw and a second jaw, the first jaw movable relative to the second jaw to transition the end effector between an open configuration and an approximated configuration to clamp tissue therebetween. The end effector may also include a camming assembly movable along a curved path. The camming assembly includes a first camming member which includes a first distal camming portion, a first proximal camming portion, and a first flexible portion extending between the first distal camming portion and the first proximal camming portion. The camming assembly includes a second camming member and a connector at least partially disposed between the first camming member and the second camming member, wherein the camming assembly is movable relative to the end effector to exert a camming force against the first jaw and the second jaw to transition the end effector to the approximated configuration. | 05-29-2014 |
20140155891 | FLEXIBLE ENDOSCOPIC CATHETER WITH LIGASURE - An endoscopic forceps is disclosed including an end effector assembly having two jaw members movable from a first position in spaced relation relative to one another to at least a second position closer to one another for grasping tissue therebetween. Each of the jaw members is connectable to an electrosurgical energy source for conducting energy through tissue held therebetween. The jaw members are biased to the first position. The end effector assembly of the endoscopic forceps further includes a wire snare having a proximal end connectable to an electrosurgical energy source and a distal end translatably extending out of one of the jaw members and operatively associated with the other of the jaw members. In use, withdrawal of the proximal end of the wire snare results in movement of the jaw members from the first position to a second position and clamping of the tissue between the jaws. | 06-05-2014 |
20140163552 | DYNAMIC AND STATIC BIPOLAR ELECTRICAL SEALING AND CUTTING DEVICE - An end effector assembly includes opposed jaws moveable from an open to a closed position for grasping tissue therebetween. Each jaw includes an electrically conductive surface adapted to conduct electrosurgical energy through tissue disposed between the jaws. A static bipolar cutting portion including at least one electrically conductive cutting element and at least one insulating element having a first configuration is disposed on at least one of the jaws. The static cutting portion is configured to electrically cut tissue disposed between the jaws upon activation of the cutting element and at least one of an opposing sealing surface and an opposing cutting element. A dynamic cutting portion including at least one electrically conductive cutting element and at least one insulating element having a second configuration is disposed on at least one of the jaws. The dynamic cutting portion electrically transects tissue during movement relative to tissue. | 06-12-2014 |
20140180280 | MAGNETIC ACTIVATION OF MONOPOLAR AND BIPOLAR DEVICES - A system for providing current to perform a surgical procedure includes an electrosurgical device having a conductive cutting wire and a power source with a power cord providing current to the cutting wire from a power source. The power cord and device are connected via a magnetic connection. The magnetic connection includes a device housing coupled to a cord housing, where a magnetic post is received in a recess for mechanically and electrically connecting the cutting wire and an active wire of the power cord. The recess and the magnetic post can be coaxial, with the axes being perpendicular to longitudinal axes of the device housing and the cord housing so that the connection can withstand a force exerted along the longitudinal axis, but a sufficient force transverse to the longitudinal axes and along the axes of the recess and the post can de-couple the magnetic connection. | 06-26-2014 |
20140180281 | ELECTRIC STAPLER DEVICE - An end effector assembly adapted to couple to an electrosurgical instrument, the end effector assembly including a plurality of spaced apart small seal plates on opposing jaw members where each seal plate forms a pair of seal plates with the corresponding seal plate on the opposing jaw member. Each pair of seal plates is individually activatable, and the pair of seal plates are activated in sequence. When the opposing jaw members are in an approximated position, the pairs of seal plates around the periphery of each jaw member define a gap therebetween that is larger than the gap between pairs of seal plates along the center of each jaw member. | 06-26-2014 |
20140180282 | APPARATUS FOR TREATING A PORTION OF A REPRODUCTIVE SYSTEM AND RELATED METHODS OF USE - A medical device for performing a surgical procedure may include an elongate member having a proximal end, a distal end, and a lumen extending therebetween. The medical device may also include a handle connected to the proximal end of the elongate member, an end effector assembly connected to the distal end of the elongate member, and a cutting device configured to extend from the end effector assembly, wherein the cutting device has a retracted configuration in which the cutting device is withdrawn into the end effector assembly and a deployed configuration in which the cutting device extends from the end effector assembly. | 06-26-2014 |
20140180283 | Electrosurgical Plenum - An electrosurgical probe having a plenum which prevents contact of the active electrode with tissue, while simultaneously allowing a fluid/interfacing agents to contact the active electrode. | 06-26-2014 |
20140188107 | METHODS AND SYSTEMS FOR TISSUE DISSECTION AND MODIFICATION - Methods and systems for tissue dissection and modification are disclosed herein. A method for tissue dissection and modification may comprise inserting a tissue dissecting and modifying wand (TDM) through an incision in a patient's body. The TDM may comprise a tip having a plurality of protrusions with lysing segments positioned between the protrusions to dissect and/or modify tissue. The TDM may also comprise an energy window positioned on top of the TDM that is configured to deliver energy to modify tissues. After separating tissue using the lysing segment(s) to define a target region, the energy window may be activated and moved around within the target region to modify tissues. In some implementations, the energy window may be activated prior to and/or during dissection of the tissue such that the tissue is separated while tissue is modified within the target region. | 07-03-2014 |
20140188108 | Energy Assisted Tissue Piercing Device and Method of Use Thereof - An energy assisted tissue piercing device that enables a tissue piercing wire to puncture heart tissue percutaneouly. The energy assisted tissue piercing device includes an outer delivery catheter, an inner tissue piercing wire, and an energy source. The inner tissue piercing wire is disposed longitudinally through the lumen of the outer delivery catheter during delivery. The inner needle has a flexible portion that allows the wire to bend when it is free from the constraint of the outer delivery catheter. The inner tissue piercing wire is conductive and connected to an energy source and the piercing of the heart tissue is done with the aid of the energy from the energy source. | 07-03-2014 |
20140194874 | ELECTROSURGICAL END EFFECTOR WITH INDEPENDENT CLOSURE FEATURE AND BLADE - An apparatus includes a body, an end effector, and outer beam, and an inner beam. The body comprises an actuator. The end effector is in communication with the body and has a first jaw and a second jaw. The outer beam is able to advance within the end effector such that the outer beam closes the second jaw toward the first jaw. The advancement of the outer beam is controlled mainly by the actuator. The inner beam is also able to advance within the end effector such that the inner beam transects tissue. The actuator is operable to control the advancement of the inner beam in at least two stages. The actuator advances the inner beam and the outer beam together in a first state. The actuator advances the inner beam while the outer beam remains stationary in a second stage. | 07-10-2014 |
20140194875 | SURGICAL FORCEPS - A forceps includes an end effector assembly having first and second jaw members movable between a spaced-apart position and an approximated position for grasping tissue therebetween. Each jaw member includes an electrically-conductive tissue-contacting surface adapted to connect to a source of energy to treat tissue grasped between the jaw members. The first jaw member includes a cutting electrode adapted to connect to the source of energy to cut tissue grasped between the jaw members, while the second jaw member including a first insulative member positioned to oppose the cutting electrode. The first insulative member is configured to guide the cutting electrode into alignment with the first insulative member upon approximation of the jaw members to thereby align the jaw members relative to one another upon approximation of the jaw members. | 07-10-2014 |
20140200580 | LIMITED-USE MEDICAL DEVICE - A medical device may include one or more operable components and one or more limited-use portions. The limited-use portion(s) is configured to transition from a first state to a second state upon being subjected to sterilization above a sterilization threshold. In the second state, the limited-use portion(s) inhibit the operability of the one or more operable components. | 07-17-2014 |
20140207137 | CAPSULOTOMY DEVICE WITH SUCTION CUP COMPRESSION CHAMBER - A surgical device and procedure are provided for smoothly and easily accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision in the cornea of the eye. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position on the lens capsule. A cutting element mounted to the suction cup is used to cut a portion of the lens capsule and to remove the portion from the eye. | 07-24-2014 |
20140214029 | SURGICAL INSTRUMENT WITH BLADE COMPLIANT ALONG VERTICAL CUTTING EDGE PLANE - An apparatus comprises a body, a shaft, an end effector, and a firing beam. The shaft extends distally from the body. The end effector is positioned at the distal end of the shaft. The end effector comprises a first jaw and a second jaw, with the first jaw being pivotable toward the second jaw. The firing beam is operable to translate relative to the end effector to thereby drive the first jaw toward the second jaw. The firing beam includes a deformable portion operable to deform in response to a stress imposed by the end effector on the firing beam as the jaws clamp on dense or thick tissue. The deformable portion is defined in part by a cutout. A compliance restriction feature restricts deformation in the firing beam. A resilient member biases the firing beam to a non-deformed configuration. | 07-31-2014 |
20140214030 | ELECTROSURGICAL GRIPPING INSTRUMENT - The invention relates to an electrosurgical gripping instrument which includes a cutting section for cutting tissue without deformation. The cutting section can be deflected from an idle position for cutting purposes which brings it into contact with the tissue. | 07-31-2014 |
20140276802 | ROTATABLE CUTTING INSTRUMENT AND METHOD - A surgical instrument includes a first member having an inner surface defining a first passageway. A second member is disposable within the first passageway and movable relative to the first member. The second member defines a longitudinal axis and extends between a first end and a second end configured to engage tissue. The second end includes a first surface configured for a non-penetrating engagement with the tissue and a second surface including at least two spaced apart cutting members extending axially from the first surface. The cutting members are rotatable to excise a portion of the tissue. Systems and methods are disclosed. | 09-18-2014 |
20140276803 | ELECTROSURGICAL INSTRUMENT WITH A KNIFE BLADE STOP - An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly operably coupled to a distal end of the shaft includes a pair of first and second jaw members having proximal and distal ends. One or both of the first and second jaw members is movable from an open configuration for positioning tissue therebetween, to a clamping configuration for grasping tissue therebetween. A knife blade assembly includes a knife blade that is translatable within the first and second jaw members when the first and second jaw members are in the clamping configuration. The knife blade assembly includes a knife blade stop configured to contact at least a portion of the proximal end of the second jaw member when the first and second jaw members are in the open configuration to limit translation of the knife blade assembly. | 09-18-2014 |
20140276804 | OFFSET FORCEPS - An electrosurgical device comprising: forceps including: (i) a first working arm having a contact surface and (ii) a second working arm having a contact surface; wherein the forceps has a first electrical configuration where the contact surface of the first working arm and the contact surface of the second working arm are substantially opposite each other so that the contact surfaces of the forceps can be used to grip an item between the working arms and so that the forceps is configured to deliver a first therapy current through the first working arm, the second working arm, or both; and wherein the forceps has second electrical configuration where the contact surface of the first working arm and the contact surface of the second working arm are askew relative to each other and an electrode edge is formed on at least one side of the forceps so that a second therapy current extends from the electrode edge. | 09-18-2014 |
20140276805 | TREATMENT DEVICE USING ENERGY - A treatment portion of a treatment device includes a pair of jaws, an energy emitter, a base having has electric insulation, an outer edge, first to third channels and a support portion. The first channel is formed by the energy emitter, the base, and the outer edge, fluid emanating from the living tissue of the treatment target flows into the first channel. The second channels are provided between the base and the outer edge. The third channel is provided between the outer edge and the energy emitter to allow the fluid emanating from the living tissue to flow toward the first channel. The support portion couples the base to the outer edge so that the fluid emanating from the living tissue flows into the first channel, and supports the living tissue to prevent it from coming into the first channel when it is held between the pair of jaws. | 09-18-2014 |
20140276806 | Instrument for Vessel Fusion and Separation - In the case of an instrument ( | 09-18-2014 |
20140276807 | Spine Fixation Device and Method - A novel device and method for surgical inducement of cervical vertebra fusion as a treatment for cervical spinal disease using a guide wire, slide knife, and a minimally invasive portal access device and an inter-vertebra linking member. | 09-18-2014 |
20140288554 | HIGH-FREQUENCY KNIFE - A high-frequency knife conduit line and opening hole opening communicate allowing fluid to flow between a rod-shaped electrode outer peripheral surface and the opening hole inner peripheral surface. The guide hole is smaller than the opening and is further toward a radial inner side than the opening outer edge and further toward a radial outer side than the rod-shaped electrode. The fluid is released from the opening to the outside of the sheath over the whole circumference of the rod-shaped electrode on the radial outer side while an electrode portion protrudes toward the sheath distal end portion separating a larger-diameter portion from a supporting member. The fluid is injected to the larger-diameter portion front through the guide hole as the opening hole and the guide hole communicate while the electrode portion is pulled back toward the sheath proximal end portion so that the larger-diameter portion abuts against the supporting member. | 09-25-2014 |
20140303620 | ENDOSCOPE TREATMENT TOOL - An endoscope treatment tool includes a sheath having electric insulation; and an electrode unit provided at a distal end portion of the sheath. The electrode unit includes a rod-shaped electrode that is provided to extend in an axis direction of the sheath and is capable of being arranged in a state where the electrode protrudes from the distal end portion of the sheath and is exposed to the outside; and a chip that is fixed in a state where a distal end portion of the electrode is inserted into a concave portion provided in a proximal end surface so as to extend in the axis direction, has a greater external diameter than the external diameter of the electrode, and is formed from a single electric insulation material. The concave portion is formed with a smaller-diameter portion that allows the distal end portion of the electrode to be inserted thereinto. | 10-09-2014 |
20140330271 | ELECTROSURGICAL INSTRUMENT WITH SEPARATE CLOSURE AND CUTTING MEMBERS - In various embodiments, a surgical instrument is provided that may comprise an end effector for performing a surgical procedure on tissue, for example. The end effector may comprise a pair of jaws, a closure beam, and a cutting member. The closure beam and the cutting member may be releasably coupled together by an interlocking member such that movement of the cutting member may cause the closure beam to also move relative to the jaws and cause the jaws to close and grip tissue, for example. The interlocking member may then unlock, allowing the cutting member to move through the gripped tissue and relative to the closure beam. Additionally, the cutting member and closure beam may be operated by a single trigger, which may be configured to provide haptic feedback to a user at various stages. Further, the jaws may be electrically energized to deliver energy and/or seal the gripped tissue. | 11-06-2014 |
20140336643 | TISSUE RESECTING DEVICES AND METHODS - A tissue-resecting probe includes an elongated outer sleeve extending about an axis to a distal housing having a first window for receiving tissue. An edge of the first window has a dielectric surface. A rotatable inner sleeve has a second window, and at least a portion of an edge of the second window provides a first polarity electrode. Rotation of the inner sleeve within the outer sleeve moves the probe between window-open and window-closed configurations to resect tissue. | 11-13-2014 |
20140336644 | NEUTRAL ELECTRODE DEVICE, ELECTROSURGICAL INSTRUMENT COMPRISING A CORRESPONDING NEUTRAL ELECTRODE DEVICE - In surgery using monopolar HF, there is a constant risk of patients suffering burns at the neutral electrode. Said problem stems from the fact that numerous methods have been devised by which relatively high HF currents are applied for extended periods of time. The present invention solves said problem by providing a neutral electrode, device that is to be used for applying an HF current to a biological tissue. Said improved neutral electrode device comprises at least one latent heat accumulator for absorbing heat. Thus heat peaks can be at least temporarily accumulated until the accumulated thermal energy can be safely released. | 11-13-2014 |
20140350554 | CAPSULOTOMY DEVICE - A surgical device and procedure for accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position. A cutting element mounted to the suction cup is used to cut a portion and to remove the portion. The cutting element may be mounted to a cutting element support structure in a way that prevents heating of the device. | 11-27-2014 |
20140364851 | SURGICAL INSTRUMENT HAVING KNIFE BAND WITH CURVED DISTAL EDGE - An end effector for operating on tissue comprises a first jaw, a second jaw, a firing beam, and a support band. The first jaw is movable toward the second jaw to capture tissue. The first jaw has a first slot and the second jaw has a second slot. The firing beam and the support band are coupled together and are positioned to translate through the first and second slots of the jaws. The firing beam presents a sharp distal edge for severing tissue captured between the jaws. The support band presents a curved distal end. The sharp distal edge of the firing beam is partially covered and partially exposed by the curved distal end of the support band. | 12-11-2014 |
20150038964 | SURGICAL INSTRUMENT - An electrosurgical instrument for removal of tissue from a patient and a method for doing the same. The electrosurgical instrument includes a pair of lever members each of which having an associated end effector associated. One of the end effectors includes a cutting element forming a loop on the end of the end effector. The cutting element is also configured to receive electrical energy from an electrical energy source. The other of the end effectors includes a pad that can be brought into a position generally opposing the cutting element during relative movement of the end effectors toward one another. When electrical energy is discharged from the cutting element and the end effectors moved toward one another, dissection and cauterization of tissue from a patient is facilitated. | 02-05-2015 |
20150057659 | ELECTROSURGICAL INSTRUMENT - An electrosurgical instrument for the treatment of tissue includes a longitudinal instrument shaft having a central axis, an end effector at the distal end of the shaft, the end effector including at least one element movable between a first and a second position. An actuator includes a handle which reciprocates movement between a first and second actuator position, and an actuation wire associated with the actuator for movement. Movement of the actuator causes the wire to move the element between its first and second positions, the wire running longitudinally of the shaft offset on one side from the central axis of the shaft. Compensation wire is associated with the actuator, the compensation wire running longitudinally of the shaft and being offset on the opposite side of the central axis of the shaft to that of the actuation wire. | 02-26-2015 |
20150088129 | Wireless Energy Transfer for Medical Applications - Wireless energy transfer devices and systems for medical environments include, in at least some implementations, a wirelessly powered surgical device including: a device resonator configured to generate an oscillating voltage from a captured oscillating magnetic field; and a surgical tool electrically coupled to the device resonator, the surgical tool having a functional output that is capable of being directly powered by the oscillating voltage, and the surgical tool having a rechargeable battery backup; wherein the oscillating voltage is at least 30 volts and has a frequency of at least 1 kHz. Wireless energy transfer is utilized to eliminate cords and power cables from operating instruments and electronic equipment, facilitating mobility. | 03-26-2015 |
20150094715 | METHODS AND DEVICES FOR DIASTOLIC ASSIST - The devices and method described herein allow for therapeutic damage to increase volume in these hyperdynamic hearts to allow improved physiology and ventricular filling and to reduce diastolic filling pressure by making the ventricle less stiff. | 04-02-2015 |
20150133921 | ELECTROSURGICAL DEVICES - In one embodiment, a surgical instrument comprises a handle assembly. The handle assembly comprises a closure trigger defining an energy button hole, an energy button located within the energy button hole, and a firing trigger. A shaft assembly is coupled to the handle assembly and comprises an outer tube, a closure actuator coupled to the closure trigger, and a firing actuator operatively coupled to the firing trigger. An end effector is coupled to a distal end of the shaft assembly. The end effector comprises a jaw assembly having a proximal end and a distal end. The jaw assembly comprises a first and a second jaw member. The first and second jaw members define a longitudinal slot. The closure actuator is coupled to the first jaw member to pivotally move the first jaw member from an open position to a closed position. A cutting member is deployable within the longitudinal slot. | 05-14-2015 |
20150133922 | APPARATUS AND METHOD FOR TUBESET WITH DRIVE AXLE - A device comprising: a handpiece having one or more attachment ports; a tubeset having one or more attachment features for connecting the tubeset to the one or more attachment ports in the handpiece; a removable tip having an attachment arm for attaching to the one or more attachment ports in the handpiece; wherein the device comprises one or more of the following: the handpiece includes an attachment port that attaches the handpiece to an active lead and a return lead and the device is adapted to use only the active lead or both leads so that the device can switch between bi-polar energy and mono-polar energy; the tubeset has one or more fluid conduits that are in fluid communication with the removable tip, wherein the removable tip is located at a distal end of the device; and the handpiece connects to one or more electrical input lines; the tubeset connects to one or more fluid lines, and the removable tip is free of direct connection to both the one or more electrical input lines and the one or more fluid lines. | 05-14-2015 |
20150141989 | METHOD FOR COATING SURGICAL INSTRUMENTS - A coating and devices using the coating are provided. The coating is applied in liquid form and dried or otherwise cured to form a durable adherent coating resistant to high temperatures and having optional hydrophobic properties. The coating formulation contains an aqueous formulation of silica, one or more fillers, and sufficient base, (e.g., potassium hydroxide), to have a pH exceeding about 10.5 during at least part of the formulation process. The formulation may contain a compound(s) that affects surface free energy, energy to make the cured coating hydrophobic. Such compounds include silanes containing halogens (e.g., fluorine or chlorine) and in particular silanes containing one or more hydrolyzable groups attached to at least one silicon atom and a group containing one or more halogens (e.g., chlorine or fluorine). A medical instrument (e.g., electrosurgical instrument) may be at least partially covered by a coating using the formulation. | 05-21-2015 |
20150148799 | APPARATUS AND METHOD FOR PERFORMING INTRASTROMALABDOMINAL HYSTERECTOMY AS BLOODLESS NERVE SPARING METHOD - An apparatus and procedure for defining the area for a thermo-electric knife to perform a bloodless intrastromal abdominal hysterectomy procedure while minimizing damage to the pericervical ring. The apparatus is configured to be inserted into the center cavity of the cervix and uterus to engage the uterine wall. The apparatus comprises an elongate member having a first end configured to extend into the center cavity of the uterus and cervix, and a thermo-electric knife guide plate secured concentrically to the elongate member proximal to the second end of the member to define the area for dissection of connective tissue between the cervix and the pericervical ring by a thermo-electric knife. A barb is secured to the elongate member between the first end and the guide plate, and configured to engage the uterine wall so that upon removal of the apparatus when in use the barb becomes attached to the uterus sufficient to remove the uterus and cervix through the abdomen. At least one aperture in the guide plate is configured to permit the passage therethrough of a centering tube when in use, whereby the apparatus is configured to stabilize the thermo-electric knife during intrastromal abdominal hysterectomy procedure. | 05-28-2015 |
20150297281 | MEDICAL DEVICES FOR THERAPEUTIC HEAT TREATMENTS - An expandable balloon catheter having an elongate shaft having a distal end region and an expandable balloon coupled to the distal end region of the elongate shaft is disclosed. One or more cutting members are attached to the expandable balloon, wherein at least a portion of each of the one or more cutting members comprises a Curie material having a Curie temperature between 60° and 400° Celsius. | 10-22-2015 |
20150351830 | VESSEL SEALING INSTRUMENT WITH CUTTING MECHANISM - An end effector assembly for use with an instrument for sealing and cutting tissue includes a pair of opposing first and second jaw members movable relative to the to grasp tissue therebetween. Each jaw member including a jaw housing and an electrically conductive surface adapted to connect to a source of electrosurgical energy such that the electrically conductive surfaces are capable of conducting electrosurgical energy through tissue held therebetween to effect a tissue seal. One of the electrically conductive surfaces including a channel defined therein and extending along a length thereof that communicates with a nozzle disposed in the jaw housing. The nozzle is configured to direct high pressure fluid from a fluid source into the channel for cutting tissue grasped between the jaw members. | 12-10-2015 |
20150366602 | ELECTROSURGICAL APPARATUS WITH RETRACTABLE BLADE - An electrosurgical apparatus with a retractable blade for use in cold plasma applications, electrosurgical cutting and mechanical cutting is provided. The electrosurgical apparatus employs a tip of the retractable blade as a sharp conductive point to generate a plasma beam or discharge. When the blade is retracted within the electrosurgical apparatus, it is electrically energized while an inert gas flows over it, producing a cold plasma discharge. In the de-energized state, the blade is advanced and used as a traditional, mechanical surgical blade. | 12-24-2015 |
20160045247 | ILLUMINATED ELECTROSURGICAL SYSTEM AND METHOD OF USE - A surgical system that illuminates a surgical site using one or more illumination means is powered by radiofrequency energy produced by an electrosurgical generator. Illumination may occur whether or not current is being delivered from an active electrode to target tissue. | 02-18-2016 |
20160051314 | MULTI-MODE COMBINATION ELECTROSURGICAL DEVICE - An electrosurgical device comprising: (a) forceps including: a first working arm, and a second working arm; (b) a blade; (c) one or more sliders that move along the forceps between at least a first position and a second position; (d) a first activation button; and (e) a second activation button; wherein the electrosurgical device is capable of being switched between: (A) a first configuration wherein: the first working arm and the second working arm are free to move in a direction towards each other so as to grasp tissue therebetween, the blade is retracted within a distal end of the first working arm and a distal end of the second working arm, and the first activation button is configured to produce a first therapy signal; and (B) a second configuration wherein: the first working arm and the second working arm are secured together to prevent movement in a direction towards each other, and the blade is extended so that a distal end of the blade is substantially flush with the distal end of the first working arm and the distal end of the second working arm; wherein at least one of the one or more sliders disable the second activation button when the at least one slider is in a first position, and wherein the at least one slider in a second position: secures the first working arm and the second working arm so that movement of the first working arm and the second working arm are prevented in a direction towards each other, extends the blade, or enables the second activation button to produce a second therapy signal. | 02-25-2016 |
20160051316 | ELECTROSURGICAL ELECTRODE MECHANISM - An electrosurgical instrument comprises a shaft and end effector positioned distally of the shaft. A first jaw comprises a first jaw body, a first jaw energy delivery surface, a first jaw electrode positioned at the first jaw energy delivery surface, an insulator positioned between the first jaw electrode and the first jaw body to thermally insulate the first jaw electrode and the first jaw body, and an inner surface positioned at the first jaw energy delivery surface, thermally coupled to the first jaw body, and electrically coupled to the first jaw body. A second jaw pivotable towards the first jaw from an open position to a closed position comprises a second jaw energy delivery surface. The first jaw energy delivery surface and the second jaw energy delivery surface face one another when the end effector is in the closed position. | 02-25-2016 |
20160058495 | ELECTROSURGICALLY REMOVING TISSUE WITH LOCALIZED RETURN - An electrosurgical system for removing tissue is provided. The electrosurgical system includes an electrosurgical device for treat tissue and a grasping device configured to grasp tissue. The electrosurgical device has one or more electrically conductive surfaces adapted to electrically couple to a first electrical potential of an electrosurgical energy source. The grasping device includes one or more electrically conductive surfaces adapted to electrically couple to a second electrical potential of the electrosurgical energy source wherein, upon activation of the electrosurgical energy source, electrosurgical energy is transmitted between electrical potentials and through tissue disposed therebetween. | 03-03-2016 |
20160066980 | System for Simultaneous Tissue Coagulation and Tissue Dissection - An instrument ( | 03-10-2016 |
20160066983 | METHOD OF MARKING LESION IN TUBULAR ORGAN OF AN OBJECT - A method used to mark a tubular organ of a subject. In a first step, at a position near a lesion on a wall surface of the tubular organ, a first electrode is supplied with high-frequency current, so that the first electrode punctures the wall surface from a surface of a mucosal layer on the wall surface to a predetermined depth. In a second step, the first electrode is supplied with the high-frequency current for a predetermined time such that a first marking is made by cauterization on a muscle layer. In a third step, a second electrode, which is disposed coaxially with the first electrode, is supplied with high-frequency current for a predetermined time such that a second marking is made by cauterization on the surface of the mucosal layer. During the third step, the first electrode is held as is after the second step. | 03-10-2016 |
20160095615 | SURGICAL DEVICE AND METHOD OF USE - A tissue resecting device includes a handle coupled to an elongated sleeve assembly. The elongated sleeve assembly includes a windowed outer sleeve and an inner sleeve adapted to reciprocate and/or rotate relative to the window to resect tissue intruding into the window, where the resected tissue is captured in a channel in the sleeve assembly. One or more motors in the handle both move the inner sleeve relative to the window and operate a pump which causes a fluid to flow through the channel in the sleeve assembly to remove resected tissue therefrom. | 04-07-2016 |
20160095644 | Cold Plasma Scalpel - An attachment for an electrosurgical hand piece. The attachment comprises a probe assembly having an elongated tube having a proximal end and a distal end, and an electrode. The electrode has at a proximal end a conductive connector, which has a proximal end, a distal end and a channel extending through the conductive connector. The conductive connector may be comprised of a nickel plated brass alloy. The electrode further has a conductive wire extending from said distal end of said conductive connector, said conductive wire being connected to said distal end of said conductive connector adjacent to said channel in said conductive connector. The conductive wire extends substantially along the length of the elongated tube and may or may not extend out of the end of the tube. | 04-07-2016 |
20160120592 | TELESCOPING DEVICE WITH SALINE IRRIGATION LINE - An electrosurgical device includes a first shaft defining a proximal end, a distal end, and a lumen therethrough. A fluid delivery tube is disposed within the lumen, the fluid delivery tube defining a proximal end a distal end. An electrically conductive treatment element is in electrical communication with and coupled to the distal end of the first shaft, the electrically conductive treatment element includes a conductive fluid conduit in fluid communication with and affixed within a portion of the fluid delivery tube. A second shaft is in electrical communication with the first shaft, the first shaft being slideably disposed within the second shaft and movable from a first position in which the electrically conductive treatment element is proximate to the distal end of the second shaft to a second position in which the electrically conductive treatment element is advanced a distance away from the distal end of the second shaft. | 05-05-2016 |
20160128758 | OPHTHALMIC SURGICAL DEVICE FOR CAPSULOTOMY - A surgical device and procedure are provided for performing microsurgery, including a capsulotomy of a lens capsule of an eye. The device has an elastically deformable cutting element mounted within an elastomeric suction cup. The suction cup is attached to an arm for manipulating the device. The device can be inserted into the anterior chamber of the eye, through a corneal incision, to cut a piece from the anterior portion of the lens capsule of the eye. The device is secured against the lens capsule using suction applied by one or more suction elements. The device is then removed from the eye, with the cut piece of membrane retained within the device by suction. | 05-12-2016 |
20160128762 | SURGICAL INSTRUMENTS FOR TENSIONING TISSUE - A surgical instrument can comprise an end effector including a plurality of jaws which can be configured to compress tissue therebetween. The end effector can further comprise one or more electrodes which can be configured to direct a flow of electrical current through the tissue in order to heat the tissue and denature collagen and/or other proteins within the tissue. As the tissue cools, the collagen and/or other proteins can renature and thereby seal the tissue. In certain embodiments, the end effector of the surgical instrument can further comprise movable portions which can apply a tension force to the tissue surrounding the tissue being sealed. In various circumstances, the tension force can reduce the over-denaturation, shrinkage, and/or other damage to the surrounding tissue caused by heat flowing from the end effector during the sealing process. | 05-12-2016 |
20160135873 | SYSTEMS AND METHODS FOR PERCUTANEOUS INTRAVASCULAR ACCESS FOR ARTERIOVENOUS FISTULA - A device for extending, elongating, or repairing a previously created arteriovenous fistula between a first blood vessel and an adjacent second blood vessel includes a main body having a primary lumen and an articulating jaw member disposed at the distal end of the main body. The jaw member is configured with two elements to allow rotation of one element about a pivot point to grasp tissue while being rotated. The jaw member is also configured to allow thermal energy delivery to one or both elements of the jaw member that allow tissue welding and cutting. A second lumen located within one element of the jaw member is configured to allow advancement over a guidewire into the second vessel while the other element of the jaw member remains within the first blood vessel at the position where the arteriovenous fistula, or aperture, exists between the first and second blood vessel. | 05-19-2016 |
20160151110 | OPEN VESSEL SEALING INSTRUMENT AND METHOD OF MANUFACTURING THE SAME | 06-02-2016 |
20160184041 | Pop-Up Laminate Structures with Integrated Electronics - A multi-layer, super-planar laminate structure can be formed from distinctly patterned layers. The layers in the structure can include at least one rigid layer and at least one flexible layer; the rigid layer includes a plurality of rigid segments, and the flexible layer can extend between the rigid segments to serve as a joint. The layers are then stacked and bonded at selected locations to form a laminate structure with inter-layer bonds, and the laminate structure is flexed at the flexible layer between rigid segments to produce an expanded three-dimensional structure, wherein the layers are joined at the selected bonding locations and separated at other locations. A layer with electrical wiring can be included in the structure for delivering electric current to devices on or in the laminate structure. | 06-30-2016 |
20160199086 | Blade for a Cutting Instrument, Scalpel Holder for a Blade, and Method for Producing a Blade | 07-14-2016 |
20160199118 | TAPERED PRECISION BLADE ELECTROSURGICAL INSTRUMENT | 07-14-2016 |
20160199119 | PRECISION BLADE ELECTROSURGICAL INSTRUMENT | 07-14-2016 |
20160199125 | ELECTROSURGICAL SYSTEM | 07-14-2016 |
20160249975 | THERMOCOAGULATION/CUTTING DEVICE | 09-01-2016 |
20190142457 | METHOD AND APPARATUS FOR MINIMALLY INVASIVE INSERTION OF INTERVERTEBRAL IMPLANTS | 05-16-2019 |
20190142637 | CAPSULOTOMY DEVICE | 05-16-2019 |