Class / Patent application number | Description | Number of patent applications / Date published |
606037000 | Combined cutting-coagulation | 63 |
20080200912 | Electroporation ablation apparatus, system, and method - A surgical instrument, such as an endoscopic or laparoscopic instrument, includes an ablation device. The ablation device includes an elongate relatively flexible member having a proximal end and a distal end, the flexible member includes at least a first working channel. A first and second electrode extends from a working channel at the distal end of the flexible member. The first and second electrodes are adapted to be endoscopically located in a tissue treatment region. The first and second electrodes are adapted to couple to an electrical waveform generator to receive an irreversible electroporation electrical waveform sufficient to ablate tissue located between the first and second electrodes. | 08-21-2008 |
20080208185 | Hf Surgical lnstrument - The invention relates to a HF surgical instrument for treating, in particular, for cutting and coagulating biological tissue by means of a HF current. The HF surgical instrument comprises a HF generator for supplying a HF current to a cutting electrode and comprises at least one control device for interrupting a HF current circuit. The design of this HF surgical instrument is improved in that a cutting capacity is enhanced. In addition, the control device comprises a current monitoring device that detects the amplitude of the HF current and then generates a first switch-off signal when the HF current decreases over a defined period of time and/or the HF current falls below a threshold value characterizing a state of the treated tissue. The control device also comprises an electric arc monitoring device, which then generates a second switch-off signal when an electric arc occurs between the cutting electrode and the tissue. The control device is designed in such a manner that the HF current circuit is interrupted in response to the first switch-off signal or the second switch-off signal. | 08-28-2008 |
20090062786 | Tri-frequency electrosurgical instrument - An electrosurgical instrument that is capable of generating high-quality RF energy carriers at one of three different frequencies and combining any of the three carriers with any one of four electrosurgical mode waveform modulations and selectively supplying the modulated carriers to either a monopolar or a bipolar handpiece. In a preferred embodiment, the first carrier frequency is in the range of about 3.8-4.0 MHz, the second carrier frequency is in the range of about 1.7-2.0 MHz, and the third carrier frequency is in the range of about 400-600 KHz. | 03-05-2009 |
20090069802 | ELECTROSURGICAL ELECTRODE AND METHOD FOR USE - An electrosurgical electrode for use in a surgical procedure includes an elongated body in the shape of a Freer elevator having a working end portion in the shape of a spoon at a distal end thereof. The working end portion is an active electrosurgical end capable of supplying electrosurgical currents when the electrode is operatively connected to an electrosurgical apparatus and the later is activated. An opposite proximal end of the body includes a means, such as a connector, for operatively connecting the electrode to the electrosurgical apparatus for supplying the electrosurgical currents to the working end portion. | 03-12-2009 |
20090157074 | Surgical Apparatus with Removable Tool Cartridge - A surgical apparatus for coagulating and cutting tissue includes a handle assembly and a tool cartridge. The tool cartridge includes electrically conductive movable tools, such as jaws and a blade, for cutting tissue. The jaws and blade each are connected to a transmission to facilitate movement. Multiple sheaths are used to encompass and protect the transmissions. Slidable grips are disposed outside of the sheaths and operatively connected to the transmissions that are disposed within the sheaths. At least one lever is supported by the handle assembly and engagable with the grips to facilitate movement of the grips, and thus, the tools. | 06-18-2009 |
20090275938 | HIGH FREQUENCY GENERATOR FOR ELECTROSURGICAL CUTTING - The invention concerns a high frequency generator for the connection of an electrosurgical instrument comprising an electrical output terminal for an electrosurgical instrument, a current or voltage source connected at least indirectly to the output terminal, an arc detector, and a power control for controlling the electrical power delivered by way of the output terminal, wherein the power control is adapted firstly to cause the delivery of a high output power for a phase for the initial cutting support and subsequently thereto either if ignition of an arc has occurred during the phase for initial cutting support for a predetermined period of time of a cutting phase to cause the delivery of a power which is reduced in relation to the high power and subsequently for a predetermined period of time of a long pause interval to cause the delivery of no power or a lower power at which no arc occurs, or if no ignition of an arc has occurred during the phase for initial cutting support to cause the delivery of no power or a lower power for a predetermined period of time of a short pause interval. | 11-05-2009 |
20100010485 | ELECTROSURGICAL INSTRUMENT WITH AN ABLATION MODE AND A COAGULATION MODE - The electrosurgical instrument is configured to selectively perform ablation or coagulation as desired. The electrosurgical instrument includes at least two electrodes on the electrode probe that can be activated using an RF generator. The electrosurgical instrument is selectively switchable between an ablation mode and a coagulation mode by changing the amount of active surface area. In particular, in the ablation mode, a relatively small surface area is active. Thus, for a given power input, the current density is relatively high. In the coagulation mode, the active surface area is increased, thereby reducing the current density in the coagulation mode for the given power input. | 01-14-2010 |
20100191234 | Combination Tissue Removal and Cauterization Instrument - A combination tissue removal and cauterization instrument includes one or more heads configured to remove tissue by mechanical cutting action resulting from rotation, vibration and/or other type of powered motion. The heads also have electroconductive outer surfaces to which electrical energy is supplied, thereby permitting the heads to simultaneously cauterize tissue that is not removed. | 07-29-2010 |
20100228246 | 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. | 09-09-2010 |
20100324549 | 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. | 12-23-2010 |
20100324550 | ACTIVE CONVERSION OF A MONOPOLAR CIRCUIT TO A BIPOLAR CIRCUIT USING IMPEDANCE FEEDBACK BALANCING - Systems, devices, and methods for electrosurgery wherein a circuit bridge is created for a monopolar electrosurgical circuit that provides a matched impedance to load condition thereby joining the active (working) and return (reference) electrode leads into a single bipolar mode device. | 12-23-2010 |
20110009859 | SURGICAL APPARATUS WITH REMOVABLE TOOL CARTRIDGE - A surgical apparatus for coagulating and cutting tissue includes a handle assembly and a tool cartridge. The tool cartridge includes electrically conductive movable tools, such as jaws and a blade, for cutting tissue. The jaws and blade each are connected to a transmission to facilitate movement. Multiple sheaths are used to encompass and protect the transmissions. Slidable grips are disposed outside of the sheaths and operatively connected to the transmissions that are disposed within the sheaths. At least one lever is supported by the handle assembly and engagable with the grips to facilitate movement of the grips, and thus, the tools. | 01-13-2011 |
20110054463 | METHOD FOR CONTROLLING AN ELECTRO-SURGICAL HF GENERATOR AND ELECTRO-SURGICAL DEVICE - In an electro-surgical high-frequency generator, the signal frequency or the modulation frequency or a clock frequency or any combination thereof are modulated using a low-frequency modulation signal in such a way that the spectra thereof are widened. This results in a reduction of interference on peripheral devices. | 03-03-2011 |
20110125151 | HIGH FREQUENCY SURGICAL DEVICE - The invention relates to a high frequency surgical device for generating high frequency energy for cutting and/or coagulating biological tissues, comprising at least one resonance circuit with at least two switches, through which an electrical connection between the resonance circuit and an electrical energy source can be switched respectively during operation, in order to supply electrical energy to the resonance circuit during operation at least for periods of time, and with at least one control device associated with the switches through which control device the switches can be switched independently from another. | 05-26-2011 |
20110166568 | NEUTRAL ELECTRODE DEVICE, ELECTROSURGICAL INSTRUMENT COMPRISING A CORRESPONDING NEUTRAL ELECTRODE DEVICE, CONTACT MEDIUM, AND USE OF A LATENT HEAT ACCUMULATOR FOR COOLING AN ELECTRODE - In surgery using monopolar HF (high frequency), there is a constant risk of patients suffering burns at the neutral electrode. The 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 disclosure solves said problem by providing a neutral electrode device to be used for applying an HF current to a biological tissue. The 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. | 07-07-2011 |
20110178517 | ELECTROSURGICAL HF GENERATOR - An electrosurgical high frequency (HF) generator comprising a generator circuit that produces an HF current between an active electrode and at least one neutral electrode. During the cutting or coagulating of biological tissue, unwanted tissue heating due to the HF current can be reduced because the electrosurgical HF generator comprises at least one further auxiliary neutral electrode connected in parallel to the neutral electrode. | 07-21-2011 |
20110190762 | ELECTROSURGICAL INSTRUMENT - An electrosurgical instrument is provided for the treatment of tissue, the instrument comprising an instrument shaft ( | 08-04-2011 |
20110196366 | ELECTROSURGICAL SYSTEM - An electrosurgical system is provided for the treatment of tissue, the system including an electrosurgical generator ( | 08-11-2011 |
20110245825 | SURGICAL INSTRUMENT, PARTICULARLY ELECTROSURGICAL INSTRUMENT - A surgical instrument, particularly an electrosurgical instrument, including an actuating element for actuating at least one first and one second functional unit, wherein the actuating element is movable in a translational and/or rotational motion within a movement range, wherein the first functional unit is actuatable by means of a movement within a first partial region of the movement range and the second functional unit is actuatable by means of a movement within a second partial region of the movement range, wherein a changeover device is provided such that, as a result of a movement of the actuating element through a changeover region between the first and second partial region, an operative connection between the first functional unit and the actuating element can be interrupted and an operative connection can be established between the second functional unit and the actuating element. | 10-06-2011 |
20110319886 | Surgical Forceps for Sealing and Dividing Tissue - A forceps includes an end effector assembly including a pair of jaw members disposed in opposing relation relative to one another. At least one jaw member is moveable relative to the other between a spaced apart position, a first approximated position, and a second approximated position. The jaw members are configured to apply a pre-determined pressure to tissue disposed therebetween in each of the first and second approximated positions. A sealing pressure is applied to tissue disposed between the jaw members when the jaw members are in the first approximated position. A cutting pressure is applied to tissue disposed between the jaw members when the jaw members are in the second approximated position. | 12-29-2011 |
20120123409 | MEDICAL TREATMENT DEVICE - Provided is a medical treatment device capable of eliminating inconvenience of manipulation in actual clinical use, and ensuring a visual field by introducing a curve in the vicinity of an electrode portion of an outer cylindrical tube. The medical treatment device has the following structure: an electrode portion including a first electrode and a second electrode arranged opposed to the first electrode, the electrode portion having a grasping function, a coagulating function, and a cutting function; an operation portion for executing drive of the respective functions of the first electrode and the second electrode; a shaft portion for connecting the electrode portion and the operation portion; a connector portion connectable to a microwave power source; and a conductive rod, which is provided inside the shaft portion, for transmitting a microwave to the electrode portion, the medical treatment device utilizing the microwave being configured to: hold body tissue between the first electrode and the second electrode; coagulate the body tissue by supplying the microwave to the first electrode and the second electrode; and cut the body tissue through a mutual action of the first electrode and the second electrode, in which the shaft portion and the electrode portion are connected to each other with a bent holder. | 05-17-2012 |
20120215215 | Vessel Sealer and Divider with Captured Cutting Element - The present disclosure relates to an end effector assembly including first and second jaw members and a knife body. The first and second jaw members have a curved configuration and are disposed in opposed relation to each other. One or both of the jaw members include a ledge, a first knife channel and a second knife channel. The ledge is disposed along the length of one of the jaw members. The first knife channel is defined along the length of a portion of the ledge. The second knife channel is defined along the length of a portion of the jaw member, and below a bottom portion of the ledge such that the ledge covers a portion of the second knife channel. The knife body includes a knife blade at a distal end thereof and a recessed portion proximal to the knife blade. | 08-23-2012 |
20130035683 | SURGICAL SYSTEM FOR CONNECTING BODILY TISSUE AND PROCESS FOR CUTTING PROTRUDING TISSUE - The invention relates to improving a surgical system for bonding bodily tissue, comprising a surgical instrument having a bonding device for bonding bodily tissue, said bonding device comprising two tool elements displaceable relative to each other, wherein the instrument comprises a cutting device having a cutting element for cutting through tissue, and the cutting element is displaceably disposed relative to at least one of the tool elements, such that the cutting device is implemented in the form of an HF cutting device, wherein the cutting element comprises a cutting edge defining a cutting plane at an angle relative to a longitudinal axis defined by the instrument in the region of the bonding device. | 02-07-2013 |
20130041370 | Surgical Forceps - A forceps includes a disposable shaft and a reusable shaft. The shafts each including a jaw member disposed at a distal end thereof. The shafts are releasably coupled to one another about a pivot and are moveable relative to one another for moving the jaw members between an open position and a closed position. The disposable shaft includes a first tissue sealing plate disposed thereon and an electrical, connector coupled thereto that includes a plurality of wires extending therethrough and into the disposable shaft member. One or more wires is coupled to the first tissue sealing plate and one or more wires is coupled to a second tissue sealing plate that is configured for releasable engagement with the jaw member of the reusable shaft member. The tissue sealing plates are adapted to conduct energy through tissue for sealing tissue grasped between the jaw members. | 02-14-2013 |
20130110103 | HIGH-FREQUENCY SURGICAL DEVICE | 05-02-2013 |
20130282003 | DEVICES AND TECHNIQUES FOR CUTTING AND COAGULATING TISSUE - Various forms are directed to systems and methods for driving an end effector coupled to an ultrasonic drive system of a surgical instrument. A generator may generate at least one electrical signal. The at least one electrical signal may be monitored against a first set of logic conditions. When an ultrasonic impedance of the surgical instrument exceeds a threshold impedance, a resonant frequency of the at least one electrical signal may be stored as a baseline frequency. A first response of the generator may be triggered upon the occurrence of either the first set of logic conditions being met or the resonant frequency of the at least one electrical signal differing from the baseline frequency by a baseline deviation threshold. | 10-24-2013 |
20130296846 | System and Method for Electrosurgical Conductive Gas Cutting for Improving Eschar, Sealing Vessels and Tissues - An electrosurgical method and device for simultaneously cutting and coagulating tissue with an electrosurgical device having an electrode and a channel wherein said channel has a port near a proximal end of said electrode, wherein the method comprises the steps of causing an inert gas to flow through said channel and exit said port, applying high-frequency energy to said electrode while said inert gas flows through said channel, wherein said high-frequency energy applied to said electrode continuously plasmatizes inert gas exiting said port, initiating an electrical discharge from said electrode through said continuously plasmatized inert gas to said tissue, cutting tissue with said electrode, maintaining said electrical discharge from said electrode through said plasmatized inert gas while cutting tissue with said electrode to cause coagulation of said tissue simultaneously with said cutting. | 11-07-2013 |
20140031815 | ELECTROSURGICAL GRIPPING ELEMENT - The invention relates to an electrosurgical gripping instrument comprising a handle part as well a lower jaw part and an upper jaw part which can perform a forcipate movement. The gripping instrument has a first pair of coagulation sections with a first lower coagulation section on the lower jaw part and a first upper coagulation section on the upper jaw part and, further, a second pair of coagulation sections with a second lower coagulation section on the lower jaw part and a second upper coagulation section on the upper jaw part. Moreover, the electrosurgical gripping instrument has a bipolar pair of cutting electrodes between the first pair of coagulation sections and the second pair of coagulation sections. | 01-30-2014 |
20140074087 | TREATMENT DEVICE - A treatment device treats a biotissue by heating the biotissue to a target temperature. The device includes a heat-transfer member conveying heat to the biotissue, a heat-generating chip including a heat-generating member, a first temperature-measuring module, a temperature-measuring element disposed on the heat-transfer member, a second temperature-measuring module, and a controller. The heat-generating member heats the heat-transfer member. The first temperature-measuring module obtains a first temperature of the heat-generating member. The second temperature-measuring module obtains a second temperature measured by the temperature-measuring element. The controller determines the supplied electric power based on the first temperature after start of heating and before a transition point in time, and based on the second temperature after the transition point in time. | 03-13-2014 |
20140128864 | ELECTROSURGICAL GENERATOR - An electrosurgical generator ( | 05-08-2014 |
20140142567 | ELECTROSURGICAL INSTRUMENT - An electrosurgical instrument and apparatus for use with the instrument A bipolar electrosurgical instrument for use with an electrosurgical generator. The bipolar electrosurgical instrument incorporates a transformer having an input side or end electrically connected to the electrosurgical generator and an output side or end electrically connected to said bipolar electrosurgical instrument. The inexpensive bipolar electrosurgical instrument can be used with most conventional bipolar electrosurgical generators as well as with bipolar electrosurgical generators specifically designed for use with said instrument. | 05-22-2014 |
20140142568 | ELONGATED ELECTROSURGICAL INSTRUMENT, A SUCTION TIP FOR THE ELECTROSURGICAL INSTRUMENT AND METHOD OF ADJUSTING THE AXIAL POSITION OF THE SUCTION TIP ON THE ELECTROSURGICAL INSTRUMENT - An elongated electrosurgical instrument ( | 05-22-2014 |
20140257272 | HANDPIECE AND METHODS FOR PERFORMING SUBCUTANEOUS SURGERY - Devices and methods for performing subcutaneous surgery in a minimally invasive manner are provided. The methods include application of reduced air pressure in a recessed area of a handpiece placed over a section of skin and drawing the section of skin and subcutaneous tissue into the recessed area. In a subsequent step a tool is inserted through a tool conduit in the handpiece and through the skin into the subcutaneous tissue, enabling the performance of the desired surgery. Common surgical procedures include dissection and ablation. The devices and methods can be directed at the treatment of skin conditions like atrophic scars, wrinkles, or other cosmetic issues, at treatments like or promoting wound healing or preventing hyperhidrosis, or can be used for creating space for various implants. | 09-11-2014 |
20140257273 | ARGON BEAM ASSISTED ELECTROSURGERY PENCIL WITH SMOKE EVACUATION - A surgical pencil that enables simultaneous cutting with an electrode and coagulating with a coagulating material while also performing smoke evacuation. | 09-11-2014 |
20140364844 | MINIATURIZED DUAL-MODE ELECTROSURGICAL DEVICE AND METHODS OF USING SAME - Described herein is a miniaturized dual-mode high-efficiency electrosurgical device that uses radio frequency (RF) energy to cut, resect, ablate, vaporize, denaturize, drill, coagulate and/or form lesions in soft tissues by means of a current-dispersing active element, with or without the use of externally supplied liquids, when operating in a first mode and then uses energy and same active element to thermally cauterize and/or spot coagulate tissues as needed when operating in a second mode. The miniaturized dual-mode RF electrosurgical devices of the instant invention find particular utility in the field neurosurgery, more particularly in the removal of brain tumors. | 12-11-2014 |
20150025528 | SURGICAL FORCEPS FOR TREATING AND CUTTING TISSUE - An end effector assembly includes a first jaw member defining a wedge configuration having first and second planar surfaces angled inwardly to an apex, and a second jaw member defining a nest configuration having a cut-out defined by third and fourth planar surfaces angled inwardly to a trough. The jaw members are movable between spaced-apart position and approximated positions. In the approximated position, the first and third and second and fourth planar surfaces are disposed in parallel orientation relative to one another imparting a first grasping pressure to tissue disposed therebetween, while the apex is received within the trough imparting a second grasping pressure to tissue disposed therebetween. The jaw members are adapted to connect to a source of energy for conducting energy between the parallel planar surfaces to create a pair of tissue seals, and between the apex and trough to cut tissue between the tissue seals. | 01-22-2015 |
20150080878 | DEVICE AND METHOD FOR TISSUE REMOVAL - Exemplary embodiments are directed to devices and methods for tissue removal. Exemplary embodiments can be configured for mechanical dissection as well as suction to grasp, resect and collect all or part of a target tissue. Exemplary embodiments may also comprise elements for cauterization of tissue and coagulation of blood vessels. | 03-19-2015 |
20150088122 | DEVICES, SYSTEMS, AND METHODS FOR GRASPING, TREATING, AND DIVIDING TISSUE - A surgical system includes an end effector assembly, a motor assembly, an energy source, and a controller. The controller activates the motor assembly, once it is determined that tissue is present between jaw members of the end effector assembly, to move the jaw members from a spaced-apart position to an approximated position to grasp tissue. The controller further activates the energy source, once tissue is grasped between the jaw members, to supply energy to the jaw members to seal tissue grasped between the jaw members. The controller further activates the motor assembly, once it is determined that tissue sealing is complete, to move the jaw members from the approximated position to the spaced-apart position to release sealed tissue. The system may further be configured to cut tissue once it is determined that tissue sealing is complete but before moving the jaw members to the spaced-apart position. | 03-26-2015 |
20150094711 | HEATED RESONANT CUTTING DEVICE AND METHOD OF USE THEREOF - Disclosed herein is a cutting and/or coagulating device that includes a cutting and/or coagulating member and a radio frequency generator such that an output of the radio frequency generator is connected to the cutting and/or coagulating member. The cutting and/or coagulating member is electrically resonant at the frequency of the radio frequency generator. Further, the cutting and/or coagulating member may include a resistance wire which is configured to directly contact a target cutting material. The cutting and/or coagulating member may be further heated to a visible glow. Furthermore, a method of cutting and/or coagulating is also contemplated. | 04-02-2015 |
20150141980 | VESSEL SEALING INSTRUMENT WITH SUCTION SYSTEM - The present disclosure is directed to a forceps having an end effector assembly including first and second jaw members. At least one of the jaw members is movable relative to the other 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. A suction system is disposed proximate the first and second jaw members and is configured to apply suction to a surgical site upon activation thereof. | 05-21-2015 |
20150305798 | PORTABLE ELECTROSURGICAL INSTRUMENT - A handheld and self-contained electrosurgical instrument includes a self-contained housing, rechargeable batteries, a microprocessor for receiving an external radio frequency signal that defines a selected frequency and current level, a circuit producing an RF signal according to said selected frequency and current level that, when applied to an electrode, performs at least one of cutting, coagulating and combined cutting-coagulating of biological tissue, a radio frequency transformer located within the housing and conductively coupled to the circuit, the transformer for transforming the RF signal according to predefined attributes, and an active monopolar or bipolar electrode for receiving the RF signal from the transformer and contacting biological tissue so as to cut and/or coagulate said biological tissue. | 10-29-2015 |
20150320477 | HIGH-FREQUENCY SURGICAL DEVICE - A high-frequency surgical device having a high-frequency generator, which produces a high-frequency output signal for treating, in particular for cutting or coagulating, biological tissue, the high-frequency generator being designed in such a way that the output signal of the high-frequency generator has a predetermined fundamental frequency and a modulation apparatus being provided, which is used to modulate the output signal with a modulation frequency, the modulation frequency being smaller than the fundamental frequency. The high-frequency surgical device is characterized in that the modulation frequency is at least 100 kHz, and in that the output signal can be modulated in such a way that a crest factor of the modulated output signal suitable for a specific application of the high-frequency surgical device arises. | 11-12-2015 |
20160015446 | ELECTROSURGICAL HANDHELD INSTRUMENT WITH ENHANCED FUNCTIONALITY - Electrosurgical instrument including a handpiece which has a connection side (A) and a treatment side (B), and including a connecting plug which is electrically connected to the connection side (A) of the handpiece and is electrically connectable to a high-frequency generator, wherein the electrosurgical instrument includes a control unit which is designed to actively control the voltage waveform of high-frequency energy which is output on the treatment side (B) of the handpiece. | 01-21-2016 |
20160058501 | CAVITATING ULTRASONIC SURGICAL ASPIRATOR WITH RF ELECTRODES - An CUSA having a cannula with an ultrasonic frequency vibrating tip with a flue disposed around the cannula. A first electrode is disposed on an outside of the flue and an RF generator provides current to the first electrode. A current flow is formed between the electrode and the tip and the tip acts as a ground. The first electrode can take the shape of a complete circumferential ring or a partially circumferential ring. The first electrode can be removably disposed on and/or movable along a length of the flue to allow the surgeon to “clip-on” or adjust the electrode at the position of their choice. A second electrode can be disposed on the outside of the flue and proximal to the first. A second current flow can be formed between the first electrode and the second electrode. | 03-03-2016 |
20160074107 | SURGICAL INSTRUMENT HAVING A BIPOLAR END EFFECTOR ASSEMBLY AND A DEPLOYABLE MONOPOLAR ASSEMBLY - A deployment and retraction mechanism for a surgical instrument includes a gear box defining a longitudinal slot, a slider, a ring gear, and a planet gear. The slider is configured to engage a deployable component of the surgical instrument and is translatable along the longitudinal slot between a proximal end, corresponding to a storage condition of the deployable component, and a distal end, corresponding to a use condition of the deployable component. The planet gear is operably engaged with the ring gear and configured to orbit within the ring gear. The planet gear includes an off-center pin rotatably supporting the slider thereon. The planet gear and ring gear are configured such that a one-half orbit of the planet gear within the ring gear translates the slider from one end of the longitudinal slot to the other end of the longitudinal slot. | 03-17-2016 |
20160192990 | Telescopic light source electrosurgical pencil | 07-07-2016 |
20160249973 | BIPOLAR ELECTROSURGERY ACTUATOR | 09-01-2016 |
20180021081 | SURGICAL INSTRUMENT AND METHOD | 01-25-2018 |
606038000 | With feed back control | 15 |
20080281315 | Electrosurgical Generator With Adaptive Power Control - An electrosurgical generator has an output power control system that causes the impedance of tissue to rise and fall in a cyclic pattern until the tissue is desiccated. The advantage of the power control system is that thermal spread and charring are reduced. In addition, the power control system offers improved performance for electrosurgical vessel sealing and tissue welding. The output power is applied cyclically by a control system with tissue impedance feedback. The impedance of the tissue follows the cyclic pattern of the output power several times, depending on the state of the tissue, until the tissue becomes fully desiccated. High power is applied to cause the tissue to reach a high impedance, and then the power is reduced to allow the impedance to fall. Thermal energy is allowed to dissipate during the low power cycle. The control system is adaptive to tissue in the sense that output power is modulated in response to the impedance of the tissue. | 11-13-2008 |
20090082765 | REAL-TIME ARC CONTROL IN ELECTROSURGICAL GENERATORS - An electrosurgical generator is disclosed. The generator includes a radio frequency output stage configured to generate a radio frequency waveform and a sensor circuit configured to measure a property of the radio frequency waveform during a predetermined sampling period to determine whether an arc event has occurred. The generator also includes a controller configured to determine a total charge and/or total energy deposited by the radio frequency waveform during the predetermined sampling period associated with the arc event. The controller is further configured to adjust the output of the electrosurgical generator based on at least one parameter to limit arcing. | 03-26-2009 |
20090254080 | SURGICAL OPERATION APPARATUS - A surgical operation apparatus includes a handpiece to be held by an operator, and an apparatus main body to be connected with the handpiece, wherein the handpiece includes a high-frequency treatment unit to treat a living tissue by a high-frequency current, an ultrasonic treatment unit to treat a living tissue by an ultrasonic vibration, and a sensor unit to perform detection for calculation of an impedance of a living tissue, and the apparatus main body includes a high-frequency output module to activate the high-frequency treatment unit, an ultrasonic output module to activate the ultrasonic treatment unit, a sensor module to calculate the impedance of the living tissue based on a detection result obtained from the sensor unit, and a control module to automatically control at least the ultrasonic output module of the high-frequency output module and the ultrasonic output module in accordance with the impedance calculated by the sensor module so as to automatically adjust an output of at least the ultrasonic treatment unit of the high-frequency treatment unit and the ultrasonic treatment unit. | 10-08-2009 |
20090306648 | System and Method for Output Control of Electrosurgical Generator - An electrosurgical system and method are disclosed. The system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The generator includes sensor circuitry adapted to continuously monitor tissue impedance to generate a variance impedance curve and a microprocessor adapted to calculate a slope of a segment of the variance impedance curve. The microprocessor also calculates a bubble factor that represents the rate of formation and absorption of bubbles within tissue to determine minimum tissue impedance and maximum tissue conductance. The system further includes an electrosurgical instrument which includes one or more active electrodes adapted to apply electrosurgical energy to tissue. | 12-10-2009 |
20100030210 | Polyphase Electrosurgical System and Method - A polyphase electrosurgical system and method are provided. In embodiments, a radiofrequency generator having the capability of delivering a plurality of independent electrosurgical signals is disclosed. An electrosurgical instrument having an array of electrodes that correspond to the plurality of signals may be used to deliver the electrosurgical signals to tissue. In embodiments, three RF signals having a phase offset of about 120° therebetween, i.e., a three-phase configuration, may be used to achieve a balanced delivery of electrosurgical energy, which may lead to increased rates of energy delivery, improved control of tissue ablation regions, and improved operative outcomes. The phase, amplitude, and/or frequency of each signal may be independently variable in response to user inputs and/or biological parameters such as tissue impedance or return electrode current. | 02-04-2010 |
20100217259 | HF-SURGERY DEVICE AND METHOD FOR AN HF-SURGERY DEVICE - The invention concerns an HF-surgery device for cutting and/or coagulating biological tissue and a method for same, which in operation monitors the patient skin contact of a connected neutral electrode having at least two separate contact surfaces. The HF-surgery device includes at least one parallel resonant circuit arranged in a patient circuit, at least one measurement energy source arranged in a measurement circuit galvanically separated from the patient circuit for producing a measurement voltage/current acting between the contact surfaces of the neutral electrode, and at least one measuring and computing unit which in operation determines by means of the measurement voltage/current a tissue impedance which is representative of the patient skin contact and which acts between the contact surfaces. An HF-current flows in the patient circuit which is closed in the cutting or coagulation operation and the measurement voltage which is independent of the HF-current can be produced in the measurement circuit. To provide an improved HF-surgery device it is provided according to the invention that the frequency of the measurement voltage source is substantially equal to a resonance frequency of the parallel resonant circuit. | 08-26-2010 |
20120059369 | COMPACT ELECTROSURGERY APPARATUS - The invention features compact apparatuses useful in electrosurgery. The compact apparatuses have a housing having a cavity, an electrosurgical system located within the cavity, the electrosurgical system having optionally a monopolar output system, optionally a bipolar output system, optionally an argon plasma coagulation output system, a processor located within the cavity, the processor operatively coupled to each output system of the electrosurgical system to control outputs generated by each output system, optionally a high frequency generator located within the cavity and operatively coupled to the processor; and a gas canister holder and control system located within the cavity of the housing for receiving a gas canister within the cavity of the housing. | 03-08-2012 |
20120215216 | ELECTROSURGICAL GENERATOR CONTROLLER FOR REGULATION OF ELECTROSURGICAL GENERATOR OUTPUT POWER - An electrosurgical generator may reduce unintended tissue damage by improving regulation of output power. The electrosurgical generator may control the power during a cycle, and react to a change in power if arcing occurs. Voltage sources, especially, demonstrate the tendency to have large, uncontrolled power excursions during normal electrosurgical use. The magnitude of the power excursions may be dependent on various factors. An exemplary electrosurgical generator control scheme reduces or minimizes the thermal spread by accurately supplying the specified power within a few cycles. Additionally, fast and accurate regulation provided by the constant voltage mode reduces or minimizes unintentional tissue charring. Thus, reduced thermal spread and charring should result in better surgical outcomes by reducing scarring and decreasing healing times. An electrosurgical generator controller may be configured to control both a DC-DC buck converter and a DC-AC boost inverter based in part on electrical parameters of the electrosurgical generator. | 08-23-2012 |
20140066925 | Vibrating Erogenic Stimulator Glove - A vibrating erogenic stimulator glove has an elastic textured surface with a geometric pattern of raised bumps, ridges or other protrusions. A vibration system is embedded within the elastic glove, and an electrical switch controls the electrical connection between a battery and the vibration motors. | 03-06-2014 |
20140236142 | ELECTROSURGICAL GENERATOR AND SYSTEM - An electrosurgical generator includes an electrosurgical energy output configured to deliver electrosurgical energy to a bipolar end effector assembly in a conductive fluid environment for treating tissue. A controller having a processor is configured to control a waveform of the electrosurgical energy such that the waveform oscillates between a cut phase for initiating and sustaining tissue cutting, wherein the waveform includes a cut energy greater than the energy needed to create and sustain arcing, and a hemostasis phase, for desiccating/coagulating tissue, wherein the waveform includes a hemostasis energy less than the energy needed to sustain arcing. | 08-21-2014 |
20150141981 | ULTRASONIC SURGICAL INSTRUMENT WITH ELECTROSURGICAL FEATURE - A surgical instrument system includes an end effector, a generator, and a controller. The end effector includes an ultrasonic blade and at least one electrode surface. The generator provides power to the end effector. The end effector applies ultrasonic energy to tissue via the blade or RF energy to tissue via the at least one electrode surface. The controller is configured to select between one or both of ultrasonic energy or RF energy, and thereby control the generator to provide the selected one or both of ultrasonic energy or RF energy at the end effector, based on a sensed operating condition of the end effector. The controller may select between ultrasonic energy and RF energy based on whether a clamp arm is in an open position relative to the blade, based on which button is being activated, and based on whether tissue is sensed at the end effector. | 05-21-2015 |
20150289925 | SOFTWARE ALGORITHMS FOR ELECTROSURGICAL INSTRUMENTS - A surgical system includes a module for compiling a plurality of operational parameters of the surgical system during a plurality of treatment cycles performed by the surgical system. The module includes a processor and a memory unit, the processor configured to store in the memory unit values of the plurality of operational parameters associated with each of the plurality of treatment cycles, wherein the processor is configured to identify a subset of the stored values of the plurality of operational parameters temporally proximate to an intervening event. | 10-15-2015 |
20160045248 | SYSTEM AND METHOD FOR TISSUE SEALING - An electrosurgical generator is disclosed. The generator includes an RF output stage configured to supply electrosurgical energy to tissue via at least one active electrode configured to apply electrosurgical energy to tissue; sensing circuitry configured to measure impedance of tissue; and a controller. The controller is configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid; generate a target impedance trajectory as a function of measured impedance and desired rate of change based on the tissue reaction determination, wherein the target impedance trajectory includes a plurality of target impedance values; and drive tissue impedance along the target impedance trajectory by adjusting the output level of the electrosurgical generator to substantially match tissue impedance to a corresponding target impedance value for at least a predetermined minimum time period. | 02-18-2016 |
20160120590 | FINGERSWITCH CIRCUITRY TO REDUCE RF LEAKAGE CURRENT - An electrosurgical unit having detection circuitry for reducing radiofrequency leakage current in an electrosurgical unit. The electrosurgical unit includes a radiofrequency generator configured to generate electrosurgical energy, the radiofrequency generator including a detection circuit having a resistor ladder and an isolation transformer in electrical communication with the resistor ladder. The detection circuit is configured to detect a change in impedance across the isolation transformer and correlate the change in impedance to one of a plurality of predetermined energy thresholds. | 05-05-2016 |
20160192999 | CLOSED FEEDBACK CONTROL FOR ELECTROSURGICAL DEVICE | 07-07-2016 |