ArthroCare Corporation Patent applications |
Patent application number | Title | Published |
20150245862 | SYSTEMS AND METHODS SYSTEMS RELATED TO ELECTROSURGICAL WANDS WITH SCREEN ELECTRODES - An electrosurgical wand for treating tissue at a target site within or on a patient's body is described, having an elongate shaft with a handle and a distal end portion. The distal end portion has an active electrode, an insulative spacer body and a return electrode; the active electrode supported by the insulative spacer body and spaced away from the return electrode. The active electrode has both lateral and medial edge surfaces. The insulative spacer body has an aspiration cavity fluidly connected with an aspiration lumen, and at least one tapered aperture extending beyond at least one of the electrode medial edge surfaces and directed to the aspiration cavity. | 09-03-2015 |
20150230861 | METHODS AND SYSTEMS RELATED TO AN ELECTROSURGICAL CONTROLLER - An electrosurgical controller and related methods. At least some of the illustrative embodiments are methods including: placing a distal end of an electrosurgical wand in operational relationship with biological tissue; delivering energy to an active electrode of the electrosurgical wand. During delivering energy, the method may comprise: measuring a value indicative of flow of the energy to the active electrode; summing, over a first predetermined window of time, to create a first value indicative of energy provided to the active electrode; summing, over a second predetermined window of time, to create a second value indicative of energy provided to the active electrode. The method may further comprise: ceasing delivering energy responsive to the first value meeting or exceeding a predetermined value; and ceasing delivering energy responsive to the second value meeting or exceeding a threshold value. | 08-20-2015 |
20150196346 | ELECTROSURGICAL DEVICE WITH INTERNAL DIGESTOR ELECTRODE - An electrosurgical wand is described, for treating a target tissue using electrosurgical energy, which has an elongate shaft with a handle end and a distal end. A first active electrode surface is disposed on the distal end of the shaft and a first digester electrode surface is recessed away from the first active electrode surface and electrically connected with the first active electrode surface. An aspiration aperture is also disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen. | 07-16-2015 |
20140277133 | TISSUE REPAIR ASSEMBLY - The present disclosure includes a soft material anchoring system including an elongate, tubular braided soft anchoring implant. The implant has a first elongate state where the implant may easily slide within a bone tunnel, and a second axially compressed state where the implant is wedged within the bone tunnel. The implant also includes at least one suture pathway that extends along and through an implant side wall; this pathway receives at least a portion of a length of suture that is also attached to soft tissue. This length of suture may slide along the suture pathway and transition the implant from the first elongate state to the second compressed state. The system also includes a binding element that at least partially extends within the implant, the binding element having both a first larger binding portion and a second smaller sliding portion. | 09-18-2014 |
20140276725 | METHOD AND SYSTEM OF CONTROLLING CONDUCTIVE FLUID FLOW DURING AN ELECTROSURGICAL PROCEDURE - Controlling conductive fluid flow during an electrosurgical procedure. At least some of the example embodiments are methods including: flowing conductive fluid from a source lumen to a suction lumen of an electrosurgical wand, the flowing with the electrosurgical wand in a first orientation; sensing a change in orientation of the electrosurgical wand to a second orientation different than the first orientation; and changing a control parameter associated with the conductive fluid flow, the changing responsive to the change in orientation of the electrosurgical wand. | 09-18-2014 |
20140276201 | SYSTEM AND METHOD FOR DETECTING TISSUE STATE AND INFECTION DURING ELECTROSURGICAL TREATMENT OF WOUND TISSUE - A method exposes a wound bed to electrosurgical treatment to generate fragmented wound tissue, gathers a molecular gaseous by-product sample of the fragmented wound tissue, and analyzes the molecular gaseous by-product sample of the fragmented wound tissue to generate a fragmented wound tissue compound analysis profile. The method further compares the fragmented wound tissue compound analysis profile with a database of known compound analysis profiles and provides a diagnosis of the wound tissue based on the comparison of compound analysis profiles. | 09-18-2014 |
20140257279 | METHODS AND SYSTEMS RELATED TO ELECTROSURGICAL WANDS - Electrosurgical wands. At least some of the illustrative embodiments are electrosurgical wands having features that reduce contact of tissue with an active electrode of a wand, decrease the likelihood of clogging, and/or increase the visibility within surgical field. For example, wands in accordance with at least some embodiments may comprise standoffs, either along the outer perimeter of the active electrode, or through the main aperture in the active electrode, to reduce tissue contact. Wands in accordance with at least some embodiments may implement slots on the active electrodes to increase bubble aspiration to help keep the visual field at the surgical site clear. Wands in accordance with at least some embodiments may implement aspiration flow pathways within the wand that increase in cross-sectional area to reduce the likelihood of clogging. | 09-11-2014 |
20140257278 | METHODS AND SYSTEMS RELATED TO ELECTROSURGICAL WANDS - Electrosurgical wands. At least some of the illustrative embodiments are electrosurgical wands having features that reduce contact of tissue with an active electrode of a wand, decrease the likelihood of clogging, and/or increase the visibility within surgical field. For example, wands in accordance with at least some embodiments may comprise standoffs, either along the outer perimeter of the active electrode, or through the main aperture in the active electrode, to reduce tissue contact. Wands in accordance with at least some embodiments may implement slots on the active electrodes to increase bubble aspiration to help keep the visual field at the surgical site clear. Wands in accordance with at least some embodiments may implement aspiration flow pathways within the wand that increase in cross-sectional area to reduce the likelihood of clogging. | 09-11-2014 |
20140257269 | ELECTROSURGICAL METHODS AND SYSTEMS - Electrosurgical methods and systems. At least some of the illustrative embodiments are methods including maintaining plasma proximate to an active electrode in a first energy range, and a second energy range. During periods when plasma is proximate to the active electrode, the illustrative method may include controlling flow of fluid drawn into an aperture of an electrosurgical wand, and in some situations increasing fluid flow drawing into the aperture responsive to the active electrode being in operational relationship with tissue, and in other cases decreasing fluid flow drawing into the aperture responsive to the active electrode being in operational relationship with tissue. Further, during periods when plasma is proximate to the active electrode, the illustrative method may include providing output energy at a default energy setpoint, and then providing output energy at a second energy setpoint. | 09-11-2014 |
20140236150 | SYSTEMS AND METHODS FOR SCREEN ELECTRODE SECUREMENT - Systems and methods for securing a screen-type active electrode to the distal tip of an electrosurgical device used for selectively applying electrical energy to a target location within or on a patient's body. A securing electrode is disposed through the screen electrode and mechanically joined to an insulative support body while also creating an electrical connection and mechanical enagement with the screen electrode. The electrosurgical device and related methods are provided for resecting, cutting, partially ablating, aspirating or otherwise removing tissue from a target site, and ablating the tissue in situ. The present methods and systems are particularly useful for removing tissue within joints, e.g., synovial tissue, meniscus, articular cartilage and the like. | 08-21-2014 |
20140236141 | METHOD AND SYSTEM OF REDUCTION OF LOW FREQUENCY MUSCLE STIMULATION DURING ELECTROSURGICAL PROCEDURES - Reduction of low frequency muscle stimulation during electrosurgical procedures. At least some of the illustrative embodiments are methods including: treating a target tissue with an electrosurgical wand comprising a plurality of active electrodes intermittently exposed to a rectifying electrical phenomenon; charging a first capacitance in series with a first electrode of the plurality of active electrodes, the charging during periods of time when the rectifying electrical phenomenon proximate the first electrode; charging a second capacitance in series with a second electrode of the plurality of active electrodes, the charging during periods of time when the rectifying electrical phenomenon is proximate the second electrode; charging a third capacitance in series with a third electrode of the plurality of active electrodes, the charging during periods of time when the rectifying electrical phenomenon is proximate the third electrode; and discharging, through the first electrode, the first capacitance, while simultaneously charging the second capacitance. | 08-21-2014 |
20140222033 | SURGICAL INSTRUMENT FOR MANIPULATING AND PASSING SUTURE - A suture manipulating instrument for passing and retrieving suture through a tissue includes a handle mechanism, an elongate shaft extending from the handle, and a working distal end. The working distal end includes a needle body, a lumen defined by the needle body, a tissue penetrating distal tip, and a lateral slot. A preformed inner member is movably disposed within the lumen of the needle. The handle mechanism is used to extend the wire from the lateral slot of the needle, and to retract the wire into the lateral slot, allowing the working end of the instrument to grasp and manipulate suture by pinning and/or trapping the suture against the needle. In embodiments the inner member is further retracted within the needle lumen, drawing a length of suture into the needle lumen. The suture is subsequently ejected from the needle lumen to form a suture loop. | 08-07-2014 |
20140207189 | KNOTLESS SUTURE ANCHORING DEVICE HAVING DEFORMING SECTION TO ACCOMMODATE SUTURES OF VARIOUS DIAMETERS - An innovative bone anchor and methods for securing soft tissue, such as tendons, to bone, which permit a suture attachment that lies entirely beneath the cortical bone surface. The suturing material between the soft tissue and the bone anchor may be secured without the need for tying a knot. The suture attachment to the bone anchor involves the looping of a length of suture around a suture return member or path within the bone anchor, tightening the suture and attached soft tissue, and compressing the suture against the bone anchor. The bone anchor may be a tubular body having a lumen with a locking plug that compresses the suture therein. One of the components of the locking structure may include a deformable or flexible section, member, or surface. The locking plug may include a shaft and an enlarged head that interferes with the tubular body to provide a positive stop. An actuation rod attached at a frangible section to the shaft may be manipulated by an external handle during locking of the suture within the bone anchor. The bone anchor further may include locking structure for securing itself within a bone cavity. | 07-24-2014 |
20140200581 | 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 portion, the distal portion comprising a return electrode and electrode support. There is also at least one active electrode on the shaft distal portion, which has a proximal portion and a distal portion and a plurality of aspiration apertures disposed therebetween. These apertures are fluidly connected to a fluid aspiration cavity that is located within the electrode support, and the cavity is connected with a fluid aspiration element that is located along the shaft. The plurality of apertures vary in size and are generally arranged so that the larger sized apertures are disposed towards the electrode proximal portion and the smaller sized apertures are generally located towards the electrode distal portion. | 07-17-2014 |
20140163612 | NOVEL SUTURE - A knotless suture system formed from two lengths of suture joined at a suture junction point, with at least four suture limbs extending from the suture junction. The knotless suture system provides the ability to construct a suture bridge for soft tissue repair and fixation across a medial and lateral row bone fixation anchor configuration while passing the suture system in a simplified method of suture management. | 06-12-2014 |
20140155884 | ELECTROSURGICAL SYSTEM AND METHOD HAVING ENHANCED TEMPERATURE MEASUREMENT - Electrosurgical systems and methods are described herein in which the temperature of a fluid within a body or joint space is determined and/or monitored despite the energy generated during treatment by an ablation probe. One or more temperature sensors are positioned along the probe proximally of the electrode assembly and measure the temperature of an electrically conductive fluid without being overly influenced by the surgical effect occurring proximate the electrode assembly. A controller automatically suspends energy delivery for one or more periods of time while the temperature is monitored. | 06-05-2014 |
20140155883 | ELECTROSURGICAL SYSTEM AND METHOD HAVING ENHANCED TEMPERATURE MEASUREMENT - Electrosurgical systems and methods are described herein in which the temperature of a fluid within a body or joint space is determined and/or monitored despite the energy generated during treatment by an ablation probe. One or more temperature sensors are positioned along the probe proximally of the electrode assembly and measure the temperature of an electrically conductive fluid without being overly influenced by the surgical effect occurring proximate the electrode assembly. A controller automatically suspends energy delivery for one or more periods of time while the temperature is monitored. | 06-05-2014 |
20140155882 | ELECTROSURGICAL WAND AND RELATED METHOD AND SYSTEM - An electrosurgical wand. At least some of the illustrative embodiments are electrosurgical wands including an elongate housing that defines a handle end and a distal end, a first discharge aperture on the distal end of the elongate housing, a first active electrode of conductive material disposed on the distal end of the elongate housing, a first return electrode of conductive material disposed within the first fluid conduit, and an aspiration aperture on the distal end of the elongate housing fluidly coupled to a second fluid conduit. | 06-05-2014 |
20140135760 | ELECTROSURGICAL SYSTEM WITH SELECTIVE CONTROL OF ACTIVE AND RETURN ELECTRODES - Electrosurgical system with selective control of active and return electrodes. At least some of the illustrative embodiments are systems comprising an electrosurgical wand and an electrosurgical controller. The wand comprises a non-conductive outer surface, at least three electrodes disposed on a distal end of the wand, and at least three electrical leads extending from a proximal end of the wand (one electrical lead electrically coupled to each electrode). The controller comprises a voltage generator and a control circuit coupled between the voltage generator and the electrodes of the wand. The control circuit is configured to: selectively electrically couple the active terminal singly and in combination to the electrodes of the wand; and selectively electrically couple the return terminal singly and in combination to electrodes of the wand. | 05-15-2014 |
20140025065 | SYSTEM AND METHOD OF AN ELECTROSURGICAL CONTROLLER WITH OUTPUT RF ENERGY CONTROL - An electrosurgical controller with output RF energy control. At least some of the illustrative embodiments are electrosurgical controllers configured to change a first output voltage on the first active terminal relative to the first return terminal by selective control of a number of turns of the primary winding of a transformer used to create the output voltage. | 01-23-2014 |
20140018798 | ELECTROSURGICAL WAND AND RELATED METHOD AND SYSTEM - Electrosurgical wand. At least some of the illustrative embodiment are electrosurgical wands including: an elongate housing that defines a handle end and a distal end; an aspiration aperture on the distal end of the elongate housing the aspiration aperture fluidly coupled to a first fluid conduit, the first fluid conduit within the elongate housing; a discharge aperture on the distal end of the elongate housing, the discharge aperture fluidly coupled to a second fluid conduit, and the second fluid conduit within the elongate housing; a first active electrode of conductive material on the distal end of the elongate housing, the first active electrode between the discharge aperture and the aspiration aperture; and a conductive plate that abuts the discharge aperture, at least a portion of the conductive plate disposed over the discharge aperture. | 01-16-2014 |
20130267998 | MULTI-SUTURE KNOTLESS ANCHOR FOR ATTACHING TISSUE TO BONE AND RELATED METHOD - A multi-suture knotless anchor and related method for securing soft tissue, such as tendons, to bone are described. The suture anchor includes a body, a sleeve, and an outer deformable bone locking structure. The bone locking structure has a first low profile configuration for insertion into the bone, and a second larger profile configuration for engaging the bone when actuated. The bone anchor and methods permit a suture attachment that lies beneath the cortical bone surface and does not require tying of knots in the suture. | 10-10-2013 |
20130218173 | SURGICAL INSTRUMENT FOR MANIPULATING AND PASSING SUTURE - A suture manipulating instrument for passing and retrieving suture through a tissue includes a handle mechanism, an elongate shaft extending from the handle, and a working distal end. The working distal end includes a needle body, a lumen defined by the needle body, a tissue penetrating distal tip, and a lateral slot. A preformed inner member is movably disposed within the lumen of the needle. The handle mechanism is used to extend the wire from the lateral slot of the needle, and to retract the wire into the lateral slot, allowing the working end of the instrument to grasp and manipulate suture by pinning and/or trapping the suture against the needle. | 08-22-2013 |
20130197506 | FINE DISSECTION ELECTROSURGICAL DEVICE - An electrosurgical wand. At least some of the illustrative embodiments are electrosurgical wands including an elongate shaft that defines a handle end and a distal end, a first discharge aperture on the distal end of the elongate shaft, a first active electrode of conductive material disposed on the distal end of the elongate shaft, the first active electrode has an edge feature, a first return electrode of conductive material disposed a substantially constant distance from the first active electrode, and an aspiration aperture on the distal end of the elongate shaft fluidly coupled to a second fluid conduit. | 08-01-2013 |
20130116689 | SYSTEMS AND METHODS FOR LIMITING JOINT TEMPERATURE - Joint temperature monitoring and control systems and methods are described herein in which the temperature of a fluid within a body or joint space is determined and/or monitored despite the energy generated during treatment by an ablation probe. One or more temperature sensors are positioned along the probe proximally of the electrode assembly and measure the temperature of an electrically conductive fluid without being overly influenced by the surgical effect occurring proximate the electrode assembly. The controller coupled to the probe can also be configured to set temperature limits and treatment times as well as moderating joint temperature by altering the electrically conductive fluid flow. | 05-09-2013 |
20130116680 | ELECTROSURGERY IRRIGATION PRIMER SYSTEMS AND METHODS - Systems and methods are provided for priming or purging an electrosurgical fluid irrigation system. The electrosurgical system can include a high frequency power supply, a fluid delivery system, a handheld device having one or more electrodes, and one or more connectors for connecting the handheld device to the fluid delivery system and the RF generator. The electrosurgical system may be configured to deliver RF current and irrigation fluid until a threshold current level is detected, which is indicative of a continuous flow of fluid at the electrode and purging completion. The systems and methods of purging an electrosurgical system may further include dynamically controlling an RF output and fluid delivery system in accordance with varied parameters of detected threshold current levels. | 05-09-2013 |
20130096677 | ACL IMPLANTS, INSTRUMENTS, AND METHODS - Systems for single tunnel, double bundle anterior cruciate ligament reconstruction include implant constructs and instruments. The implant constructs provide a combination of cortical fixation and bone tunnel aperture fixation. The implant constructs separate a graft into distinct bundles. The instruments are used to prepare shaped bone tunnels to receive the implant constructs and graft bundles. The instruments are also used to exercise and insert the ligament graft constructs. Methods for reconstructing the antero-medial and postero-lateral bundles of the anterior cruciate ligament may rely on a single femoral tunnel, single or double tibial tunnels, and one or more ligament grafts. | 04-18-2013 |
20130085502 | METHOD AND APPARATUS FOR INSTALLATION OF INTRAMEDULLARY MEDICAL DEVICE - Methods and apparatus for installing intramedullary medical devices (e.g., intramedullary nails) are described herein. Intramedullary medical devices in accordance with this disclosure provide sustained compressive forces across a bone fusion site despite bone resorption processes. Intramedullary medical devices in accordance with this disclosure include pseudo-elastic shape memory alloys containing nickel and titanium. Portions of intramedullary medical devices, including shape memory alloy elements in the intramedullary medical devices, may have strains imparted upon them through the methods and apparatus described herein. Further aspects of surgery techniques are also performed and controlled through the methods and apparatus described herein. | 04-04-2013 |
20130066317 | PLASMA BIPOLAR FORCEPS - An electrosurgical wand. At least some of the illustrative embodiments are electrosurgical wands configured as a surgical forceps including opposed legs that defines respective distal end portions, the legs of the forceps operable to be actuated between an open position and a closed position, an active and return electrode disposed on one of the respective distal end portions, a discharge aperture on one of the distal end portions coupled to a first fluid conduit, and an aspiration aperture through the return electrode on the other of the distal end portions fluidly coupled to a second fluid conduit. In embodiments, the position of the forceps' legs, and the electrical energy applied to the electrodes, is adjusted to provide dissection or coagulation to the tissue. A stop or latch on the forceps' legs may maintain the active and return electrode a fixed distance from one another. | 03-14-2013 |
20130060280 | BONE ANCHOR HAVING AN INTEGRATED STRESS ISOLATOR - The present disclosure includes a knotless suture anchoring system for anchoring a suture with respect to a body cavity, including a bone anchor body with at least one rigid anchoring structure to secure the anchor body within the body cavity. The anchor body has a longitudinal bore and cross-pin extending across the bore. A retention member is coupled to the anchor body with a break notch therebetween, which may selectively fracture to separate the body from the retention member. Additionally there is a suture cutout on the retention member and a relief feature positioned along the break notch and approximately diametrically opposed from the suture cutout, the relief feature acting to alter the force dissipation along the break notch during the separation of the retention member from the anchor body. | 03-07-2013 |
20120296328 | METHOD AND SYSTEM OF AN ELECTROSURGICAL CONTROLLER WITH WAVE-SHAPING - An electrosurgical controller with wave-shaping. At least some embodiments are methods including generating an alternating current (AC) voltage signal within an electrosurgical controller. The generating may be by inducing an intermediate AC voltage signal on a secondary winding of a first transformer, and wave-shaping the intermediate AC voltage signal by a second winding of a second transformer coupled to the first transformer, and thereby creating a final AC voltage signal. Thereafter, the method includes applying the final AC voltage signal to electrical pins of a connector configured to couple to an electrosurgical wand. | 11-22-2012 |
20120226273 | ELECTROSURGICAL DEVICE WITH INTERNAL DIGESTOR ELECTRODE - An electrosurgical wand is described, for treating a target tissue using electrosurgical energy, which has an elongate shaft with a handle end and a distal end. A first active electrode surface is disposed on the distal end of the shaft and a first digester electrode surface is recessed away from the first active electrode surface and electrically connected with the first active electrode surface. An aspiration aperture is also disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen. | 09-06-2012 |
20120215221 | ELECTROSURGICAL SYSTEM WITH SUCTION CONTROL APPARATUS, SYSTEM AND METHOD - System and method for selectively applying electrical energy to structures within or on the surface of a patient's body and controlling the flow of an electrically conductive fluid from the application site to provide or maintain a desired operating condition of the electrosurgical device. An electrosurgical probe is in communication with a fluid transport apparatus through a fluid transport lumen having an opening at an end proximate the application site and disposed proximate the electrosurgical probe. A controller in communication with the fluid transport apparatus provides control signals to the fluid transport apparatus in response to at least one operating parameter associated with the system. Based on the received control signals, the fluid transport apparatus adjusts a flow rate of the electrically conductive fluid at the application site through the fluid transport lumen in response to at least one operating parameter associated with the system. | 08-23-2012 |
20120209325 | NOVEL SUTURE - A knotless suture system formed from two lengths of suture joined at a suture junction point, with at least four suture limbs extending from the suture junction. The knotless suture system provides the ability to construct a suture bridge for soft tissue repair and fixation across a medial and lateral row bone fixation anchor configuration while passing the suture system in a simplified method of suture management. | 08-16-2012 |
20120172930 | NOVEL SUTURE - A knotless suture system formed from two lengths of suture joined at a suture junction point, with at least four suture limbs extending from the suture junction. The knotless suture system provides the ability to construct a suture bridge for soft tissue repair and fixation across a medial and lateral row bone fixation anchor configuration while passing the suture system in a simplified method of suture management. | 07-05-2012 |
20120130422 | NOVEL SUTURE - A knotless suture system formed from two lengths of suture joined at a suture junction point, with at least four suture limbs extending from the suture junction. The knotless suture system provides the ability to construct a suture bridge for soft tissue repair and fixation across a medial and lateral row bone fixation anchor configuration while passing the suture system in a simplified method of suture management. | 05-24-2012 |
20120083782 | ELECTROSURGICAL APPARATUS WITH LOW WORK FUNCTION ELECTRODE - An electrosurgical apparatus includes an active electrode with a low-work function coating to improve ablation performance. Low-work function coatings include compounds of alkali metals and alkali earth metals. Additionally, the active electrode may include various micro-structures or asperities or nano-structures or asperities. An array of carbon nanotubes may be aligned and secured on the active electrode. A return electrode comprises a high-work function coating to suppress electrical discharge activity on the return electrode. | 04-05-2012 |
20110178526 | CANNULA HAVING ASYMMETRICALLY-SHAPED THREADS - Methods and apparatus for performing a medical procedure which involves penetrating a bone structure are disclosed. According to one aspect of the present invention, a method for performing a surgical procedure includes introducing an assembly that includes a threaded cannula and a stylet into a bone structure. The threads have a shape that allows the cannula tip to be pushed into the bone body yet prevent the tip from being pulled out of the bone body. In one embodiment, the threads have a buttress shape. The method may also include applying a rotational motion, as for example a torque, to the threaded cannula to adjust the depth of insertion with respect to the implantation site when it is determined that the depth of insertion is to be adjusted. | 07-21-2011 |
20110130753 | INTERNALLY LOCATED RETURN ELECTRODE ELECTROSURGICAL APPARATUS, SYSTEM AND METHOD - A bipolar, plasma-generating electrosurgical apparatus and system wherein the return electrode is enclosed within an electrosurgical shaft, and the active electrode is located on the outside surface of the shaft such that in treating the tissue, the tissue is exposed to plasma generated on the active electrode, but is minimally exposed to electric fields generated between the active and return electrodes. Due to the configuration of the electrodes, electric fields generated between the electrodes are directed away from the target tissue and inwardly towards the return electrode within the shaft, thereby electrical stimulation of neuromuscular structures in the tissue by the electric fields is minimized. | 06-02-2011 |
20110028997 | BONE ANCHOR INSERTION DEVICE - A bone anchor insertion device comprises a handle, a nosepiece connected to a distal end of the handle, a bone anchor connected to the nosepiece, and an actuator disposed on the handle for deploying the bone anchor, which suture is also fixed to a portion of soft tissue to be attached to a portion of bone. A suture ratchet or tensioning mechanism is disposed in the handle for tensioning suture which is associated with the bone anchor. This mechanism permits precise tensioning, while also permitting one-handed operation, thereby allowing the practitioner to use his or her other hand for other activities, such as camera operation or the like. | 02-03-2011 |
20100324553 | SYSTEMS AND METHODS FOR ELECTROSURGICAL INTERVERTEBRAL DISC REPLACEMENT - The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's body, particularly including tissue in the spine. The present invention applies high frequency (RF) electrical energy to one or more electrode terminals in the presence of electrically conductive fluid or saline-rich tissue to contract collagen fibers within the tissue structures. In one aspect of the invention, a system and method is provided for contracting a portion of the nucleus pulposus of a vertebral disc by applying a high frequency voltage between an active electrode and a return electrode within the portion of the nucleus pulposus, where contraction of the portion of nucleus pulposus inhibits migration of the portion nucleus pulposus through the fissure. | 12-23-2010 |
20100324534 | NASAL PACKING DEVICE - A kit for packing and supporting the nasal cavities after surgical procedures performed on the nose comprising two inflatable non-elastomeric balloons ( | 12-23-2010 |
20100318083 | ELECTROSURGICAL SYSTEM AND METHOD FOR STERILIZING CHRONIC WOUND TISSUE - An electrosurgical method for sterilizing chronic wound tissue, comprising: positioning an active electrode in proximity to the chronic wound tissue; delivering an electrically conductive fluid proximate the active electrode; and applying a high frequency voltage between the active electrode and a return electrode in the presence of the electrically conductive liquid sufficient to generate an ionized vapor layer at the active electrode, wherein the ionized vapor layer sterilizes at least a portion of the chronic wound tissue. | 12-16-2010 |
20100292689 | ELECTROSURGICAL SYSTEM AND METHOD FOR TREATING CHRONIC WOUND TISSUE - An electrosurgical method for treating chronic wound tissue, comprising: positioning an active electrode in close proximity to the chronic wound, 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 sufficient to debride and sterilize at least a portion of the chronic wound tissue; and applying a skin graft in the vicinity of the chronic wound tissue. | 11-18-2010 |
20100204690 | SINGLE APERTURE ELECTRODE ASSEMBLY - Systems and methods for securing a screen-type active electrode to the distal tip of an electrosurgical device used for selectively applying electrical energy to a target location within or on a patient's body. A securing electrode is disposed through the screen electrode and mechanically joined to an insulative support body while also creating an electrical connection and mechanical enagement with the screen electrode. The electrosurgical device and related methods are provided for resecting, cutting, partially ablating, aspirating or otherwise removing tissue from a target site, and ablating the tissue in situ. The present methods and systems are particularly useful for removing tissue within joints, e.g., synovial tissue, meniscus, articular cartilage and the like. | 08-12-2010 |
20100191283 | KNOTLESS SUTURE ANCHORING DEVICE HAVING DEFORMING SECTION TO ACCOMMODATE SUTURES OF VARIOUS DIAMETERS - An innovative bone anchor and methods for securing soft tissue, such as tendons, to bone, which permit a suture attachment that lies entirely beneath the cortical bone surface. The suturing material between the soft tissue and the bone anchor may be secured without the need for tying a knot. The suture attachment to the bone anchor involves the looping of a length of suture around a suture return member or path within the bone anchor, tightening the suture and attached soft tissue, and compressing the suture against the bone anchor. The bone anchor may be a tubular body having a lumen with a locking plug that compresses the suture therein. One of the components of the locking structure may include a deformable or flexible section, member, or surface. The locking plug may include a shaft and an enlarged head that interferes with the tubular body to provide a positive stop. An actuation rod attached at a frangible section to the shaft may be manipulated by an external handle during locking of the suture within the bone anchor. The bone anchor further may include locking structure for securing itself within a bone cavity. | 07-29-2010 |
20100160921 | CANCELLOUS BONE DISPLACEMENT SYSTEM AND METHODS OF USE - A bone displacement assembly for use during a medical procedure including preparing soft bone includes a cannula and a probe that is removably inserted into the cannula. The probe includes a curved tip designed to mechanically displace soft bone and to prepare the bone tissue for subsequent treatment such as cement injection. The probe also includes a handle assembly that connects with the cannula and also includes one control device for independently rotating the distal tip and a second control device to independently translate the distal tip. | 06-24-2010 |
20100152726 | ELECTROSURGICAL SYSTEM WITH SELECTIVE CONTROL OF ACTIVE AND RETURN ELECTRODES - Electrosurgical system with selective control of active and return electrodes. At least some of the illustrative embodiments are systems comprising an electrosurgical wand and an electrosurgical controller. The wand comprises a non-conductive outer surface, at least three electrodes disposed on a distal end of the wand, and at least three electrical leads extending from a proximal end of the wand (one electrical lead electrically coupled to each electrode). The controller comprises a voltage generator and a control circuit coupled between the voltage generator and the electrodes of the wand. The control circuit is configured to: selectively electrically couple the active terminal singly and in combination to the electrodes of the wand; and selectively electrically couple the return terminal singly and in combination to electrodes of the wand. | 06-17-2010 |
20100152724 | SYSTEMS AND METHODS FOR LIMITING JOINT TEMPERATURE - Joint temperature monitoring and control systems and methods are described herein in which the temperature of a fluid within a body or joint space is determined and/or monitored despite the energy generated during treatment by an ablation probe. One or more temperature sensors are positioned along the probe proximally of the electrode assembly and measure the temperature of an electrically conductive fluid without being overly influenced by the surgical effect occurring proximate the electrode assembly. The controller coupled to the probe can also be configured to set temperature limits and treatment times as well as moderating joint temperature by altering the electrically conductive fluid flow. | 06-17-2010 |
20100114110 | INTERVERTEBRAL DISC ACCESS ASSEMBLY - A surgical access system for managing the minimally invasive access of treatment electrodes to an intervertebral disc, when treating spine abnormalities such as disc herniations. The system includes an access port and a cannula assembly. The access port provides atraumatic access to the target area for the cannula system and a subsequent treatment electrode. The access port also manages the insertion travel and penetration depth of the cannula assembly, so as to minimize unintended damage to local tissue during use. The cannula system includes an adjustable and removable stop to mate with the access port that limits the extension of the cannula beyond the distal tip of the access port and into the target tissue. | 05-06-2010 |
20100087812 | ELECTROSURGICAL SYSTEM AND METHOD FOR STERILIZING CHRONIC WOUND TISSUE - An electrosurgical method for sterilizing chronic wound tissue, comprising: positioning an active electrode in proximity to the chronic wound tissue; delivering an electrically conductive fluid proximate the active electrode; and applying a high frequency voltage between the active electrode and a return electrode in the presence of the electrically conductive liquid sufficient to generate an ionized vapor layer at the active electrode, wherein the ionized vapor layer sterilizes at least a portion of the chronic wound tissue. | 04-08-2010 |
20090222041 | METHODS AND DEVICES FOR ATTACHING CONNECTIVE TISSUES TO BONE USING A KNOTLESS SUTURE ANCHORING DEVICE - A device for attaching connective tissue to bone has a longitudinal axis and comprises an annular toggle member and a body member disposed distally of the toggle member, such that there is an axial space between the toggle member and the body member. The toggle member is movable between an undeployed position wherein the toggle member has a smaller profile in a direction transverse to the axis and a deployed position wherein the toggle member has a larger profile in the direction transverse to the axis. When installed in a desired procedural site, in suitable bone, suturing material extends axially through a center aperture in the annular toggle member, without being secured to or contacting the toggle member. This approach permits a suture attachment which lies entirely beneath the cortical bone surface, and which further permit the attachment of suture to the bone anchor without the necessity for tying knots, which is particularly arduous and technically demanding in the case of arthroscopic procedures. | 09-03-2009 |
20090222040 | METHODS AND DEVICES FOR ATTACHING CONNECTIVE TISSUES TO BONE USING A KNOTLESS SUTURE ANCHORING DEVICE - A device for attaching connective tissue to bone has a longitudinal axis and comprises an annular toggle member and a body member disposed distally of the toggle member, such that there is an axial space between the toggle member and the body member. The toggle member is movable between an undeployed position wherein the toggle member has a smaller profile in a direction transverse to the axis and a deployed position wherein the toggle member has a larger profile in the direction transverse to the axis. When installed in a desired procedural site, in suitable bone, suturing material extends axially through a center aperture in the annular toggle member, without being secured to or contacting the toggle member. This approach permits a suture attachment which lies entirely beneath the cortical bone surface, and which further permit the attachment of suture to the bone anchor without the necessity for tying knots, which is particularly arduous and technically demanding in the case of arthroscopic procedures. | 09-03-2009 |
20090222004 | 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. | 09-03-2009 |
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 |
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 |
20090216224 | 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 |
20090216223 | 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 |
20090216222 | 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 |
20090209958 | ELECTROSURGICAL SYSTEM AND METHOD FOR TREATING CHRONIC WOUND TISSUE - An electrosurgical method for treating chronic wound tissue, comprising: positioning an active electrode in close proximity to the chronic wound, 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 sufficient to develop a high electric field intensity associated with a vapor layer proximate the active electrode and in close proximity to the wound tissue; and stimulating an expression of at least one healing mediator. | 08-20-2009 |
20090120819 | METHOD AND SYSTEM FOR PACKAGING OF MEDICAL DEVICES INCLUDING SHAPE MEMORY MATERIALS - Methods and systems are described for packaging medical devices. Packages are described for constraining expansion of medical devices along at least one axis. Removal devices for removing the medical devices from the packages are described. Medical devices stored in and removed from packages can include shape memory materials (e.g., polymers, alloys) which can cause the medical device to expand due to activation of the shape memory material. Medical devices can also expand due to other reasons, such as elastic recoil and/or thermal expansion. The methods and systems described herein may be used to limit the expansion of a medical device along at least one axis while inside a package. The methods and systems described herein may be used to relieve some of the stored strain in the medical device upon the opening of the package. Methods and systems are also described for opening a package which is subject to expansive forces from the medical device. | 05-14-2009 |
20090069807 | SYSTEM AND METHOD FOR ELECTROSURGICAL CUTTING AND ABLATION - An electrosurgical probe ( | 03-12-2009 |
20080243117 | SYSTEMS AND METHODS FOR ELECTROSURGICAL PREVENTION OF DISC HERNIATIONS - The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's body, particularly including tissue in the spine. The present invention applies high frequency (RF) electrical energy to one or more electrode terminals in the presence of electrically conductive fluid or saline-rich tissue to contract collagen fibers within the tissue structures. In one aspect of the invention, a system and method is provided for contracting a portion of the nucleus pulposus of a vertebral disc by applying a high frequency voltage between an active electrode and a return electrode within the portion of the nucleus pulposus, where contraction of the portion of nucleus pulposus inhibits migration of the portion nucleus pulposus through the fissure. | 10-02-2008 |
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 |