Entries |
Document | Title | Date |
20080208189 | Instruments and Methods for Thermal Tissue Treatment - Disclosed herein are high efficiency surgical devices and methods of using same using radio frequency (RF) electrical power and/or electrically heated filaments to destroy tumors, form lesions, denaturize, desiccate, coagulate and ablate soft tissues, as well as to drill, cut, resect and vaporize soft tissues. According to the principles of this invention, the electrosurgical instruments can be used with externally supplied conductive or non-conductive liquids, as well as without externally supplied liquids, a mode of operation often referred to as “dry field” environment. | 08-28-2008 |
20080215048 | Electrosurgical Instrument - The invention relates to an electrosurgical instrument for coagulating and/or cutting biological tissue, which can be manufactured easily and economically, wherein a surgical intervention is to be carried out easily and reliably with the instrument. For this purpose, the instrument comprises the following:
| 09-04-2008 |
20080221568 | MEDICAL DEVICE ELECTRICAL LEAD DESIGN FOR PREVENTING TRANSMITTANCE OF UNSAFE CURRENTS TO A PATIENT - An electrical lead including a conductor assembly, an electrode, and a thermally sensitive material. The conductor assembly has one or more conductors. The electrode is in electrical communication with one of the conductors and has an outer contact adapted for contacting adjacent body tissue of a patient. The thermally sensitive material is electrically connected between the one conductor and the electrode outer contact, and is configured to exhibit high impedance in the presence of currents considered unsafe to the patient, thereby preventing the unsafe currents from flowing through the thermally sensitive material and through the electrode outer contact potentially causing the adjacent body tissue to increase in temperature to an unsafe level. The unsafe currents cause the thermally sensitive material to increase in temperature, thereby causing the material to transition to a high impedance state. | 09-11-2008 |
20080281322 | RF Energy Delivery System and Method - A radio frequency tissue ablation system with a radio frequency generator, the generator comprising a radio frequency source, at least four independently controllable radio frequency outputs, a user interface and a controller configured to delivery radio frequency energy from the radio frequency source to the radio frequency outputs in one of at least two different output configurations in response to a configuration selection made through the user. | 11-13-2008 |
20080312651 | APPARATUS AND METHODS FOR SELECTIVE HEATING OF TISSUE - Methods and apparatus for selectively heating a target tissue via radiofrequency (RF) electrical energy. Apparatus of the invention includes an electrode unit having a plurality of concentric electrodes, wherein supply of electrical energy to each electrode may be independently controlled such that each of the plurality of electrodes has a different value of an electrical parameter for tissue treatment. Methods for selectively heating and treating tissue, for detecting thickness of tissue, and for determining a treatment value of an electrical parameter for each of a plurality of electrodes of an electrode unit are also disclosed. | 12-18-2008 |
20080319440 | ENDOSCOPIC UNIVERSAL HANDLE - An electrosurgical system is provided having a handpiece adapted to receive a plurality of different end effectors such that, when a particular end effector is attached to the handpiece, the end effector is recognized by either or both the handpiece and a separate electrosurgical generator so that the operational parameters for the particular end effector attached to the handpiece are selected. | 12-25-2008 |
20080319441 | FLAMMABLE SUBSTANCE SENSING DURING A SURGICAL PROCEDURE - A surgical safety apparatus for use in connection with an energizable surgical device minimizes inadvertent activation of a surgical tool when the oxygen or flammable gas level is too high. An activation circuit is connected with an energy source and with a hand piece of the tool. A sensor measures the oxygen or flammable gas near the tool and can operate in a first state to disconnect the energy source from the hand piece. In a second state the source of energy is connected to the hand piece. The sensing element is connected to the activation circuit. The sensing element signals the activation circuit to convert the activation circuit from the first state to the second state provided the oxygen or flammable gas level is safe. | 12-25-2008 |
20090054894 | SURGICAL OPERATING APPARATUS - A surgical operating apparatus comprises an insertion portion which has a distal end and a proximal end and which has a long axis and which is inserted into a body, a treatment portion which is disposed at the distal end of the insertion portion and which has a plurality of selectable surgical functions, an operation portion disposed at the proximal end of the insertion portion, a plurality of switches which are provided in the operation portion and which select the surgical functions, and a bulging portion which is disposed between the switches and which divides the switches and which doubles as a finger receiving portion. | 02-26-2009 |
20090069805 | Endoscopic Surgical Instrument - The application relates to an endoscopic surgical instrument, and in particular to an instrument for endoscopic mucosa resection. The instrument includes a device for feeding in at least one liquid (for injection and/or dissection) and a device for high frequency surgery. These devices are combined within a single surgical instrument, in the interest of uniform handling. | 03-12-2009 |
20090118729 | HEMOSTATIC SPARK EROSION TISSUE TUNNEL GENERATOR WITH INTEGRAL TREATMENT PROVIDING VARIABLE VOLUMETRIC NECROTIZATION OF TISSUE - A catheter for insertion into and treatment of tissue in a patient comprises a radio frequency (RF) electrode having an elongated body that conducts electrical RF energy to a conductive tip. An insulating sleeve surrounding the elongated body prevents leakage of RF energy from the elongated body when the catheter is being inserted into the tissue of the patient. In a first mode of operation, the conductive tip is exposed outside the insulating sleeve and the RF electrode delivers first RF energy capable of producing sparks that erode the tissue of the patient and create a tunnel through which the catheter can advance into the tissue of the patient. In a second mode of operation, the insulating sleeve is retracted to expose a portion of the RF electrode. Second RF energy is delivered to the volume of tissue around the catheter to necrotize the tissue by heating without producing sparks. | 05-07-2009 |
20090125023 | Electrosurgical Instrument - Surgical instruments include a handle, gas and electrical conduits, a hollow elongated electrode, elongated insulating sheath, and actuator mechanism. The handle has distal and proximal ends, the proximal end branching to form two arm-like portions and the distal end widening to form a tubular body portion having features sized for receiving at least an index finger and a thumb. Gas and electrical conduits are disposed within the handle for connection to external gas and electrical sources. A hollow elongated electrode extends from the handle, defines a gas conduit along its length, and is operably coupled to the gas and electrical conduits. An elongated insulating sheath encloses the electrode. An actuator mechanism alternates between two states to turn the instrument on and off. A sheath actuator slidably retracts and extends the elongated insulating sheath to increase or decrease exposure of the electrode. Methods for operating electrosurgical instrument are also disclosed. | 05-14-2009 |
20090125024 | Medical appliance with magnetic adjustment apparatus - A medical appliance with an adjustment apparatus, such that cleaning of the medical appliance, constructed with the adjustment apparatus, can be carried out reliably and simply. The medical appliance includes a first setting device disposed at an outer side on a housing of the appliance, and a second setting device disposed in the interior of the appliance. The second setting device is designed to actuate a setting element for adjustment of a controllable and/or regulatable device. The first setting device and the second setting device each comprise magnet elements, by which the first setting device cooperates with the second setting device in such a way that the one setting device actuates the other setting device for the transmission of adjustments, the cooperation of the setting devices being achieved by way of a magnetic coupling. | 05-14-2009 |
20090138011 | INTERMITTENT ABLATION RF DRIVING FOR MODERATING RETURN ELECTRODE TEMPERATURE - An ablation system comprising a source of electrical ablation energy having first second and third power outputs it is disclosed. A first conductor is coupled to the first power output on the source of electrical energy. A second conductor is coupled to the second power output on the source of electrical energy, the source of electrical energy creates a first output ablation voltage between the first and second power outputs. The first output ablation voltage varies between a first higher average value during a first period of time and a first lower average value for a second period of time. The first lower average value is greater than or equal to zero. A third conductor is coupled to a third power output on the source of electrical energy. The source of electrical energy creates a second output ablation voltage between the first and third power outputs. The second output ablation voltage varies between a second higher average value during a third period of time and a lower average value for a fourth period of time. The lower average value is greater than or equal to zero. An ablation probe is coupled to the first conductor. | 05-28-2009 |
20090149851 | Thermal Penetration and Arc Length Controllable Electrosurgical Pencil - An electrosurgical pencil is provided, which includes an elongated housing, an electrocautery electrode supported within the housing and extending distally from the housing. The electrocautery electrode is connected to a source of electrosurgical energy. The pencil also includes at least one voltage divider network supported on the housing and electrically connected to the source of electrosurgical energy for controlling intensity, frequency, and/or mode of electrosurgical energy being delivered to the electrocautery electrode. | 06-11-2009 |
20090187187 | Controlling Coagulum Formation - Some embodiments of a medical instrument can be configured to reduce the formation of coagulum by delivering a negative charge bias to conductive surfaces that interface with blood or bodily tissue during a medical procedure. The application of the negative charge at the instrument-blood interface can reduce the fibrinogen deposition and the formation of coagulum because fibrinogen molecules in general are negatively charged at neutral pH levels. In addition, some embodiments of the instrument may be configured to irrigate the instrument-blood interface with RGD/ClfA peptides, a bicarbonate solution (or other high pH solution), or both to further repel the fibrinogen and thereby inhibit the formation of coagulum. Accordingly, some embodiments of the medical instrument can substantially reduce the risks of thromboembolism during particular medical procedures. | 07-23-2009 |
20090187188 | COMBINED ENERGY LEVEL BUTTON - A surgical device is disclosed including a housing having an activation switch. The activation switch is adapted to couple to an electrosurgical energy source and includes a knob. The knob is slideable with respect to the housing and travels within a guide channel defined within the housing. The activation switch is selectively moveable in a first direction within the guide channel. Moving the activation switch in the first direction sets a desired electrosurgical energy level. The activation switch is also moveable is a second direction. Moving the activation switch is the second direction activates the electrosurgical energy source. | 07-23-2009 |
20090192509 | Electrosurgical system - An electrosurgical system includes an electrosurgical generator ( | 07-30-2009 |
20090248015 | Electrosurgical Pencil Including Improved Controls - The present disclosure relates to electrosurgical devices having a plurality of hand-accessible variable controls. An electrosurgical device configured for connection to a source of electrosurgical energy is provided and includes a housing; an electrical circuit supported within the housing, the electrical circuit being connectable to the source of electrosurgical energy, wherein the electrical circuit is provided with at least one tactile enhancement feature; and a controller slidably supported on the housing, wherein the controller is configured to exert a force on the electrical circuit to affect a change in the electrical circuit and to exert a force on a surface of the housing to engage the tactile enhancement feature and provide a tactile feedback to a user of the electrosurgical device as the controller is moved relative to the housing | 10-01-2009 |
20090248016 | Electrosurgical Pencil Including Improved Controls - The present disclosure relates to electrosurgical devices having a plurality of hand-accessible variable controls. An electrosurgical device configured for connection to a source of electrosurgical energy is provided and includes a housing; an electrical circuit supported within the housing, the electrical circuit being connectable to the source of electrosurgical energy; and a controller slidably supported on the housing, wherein the controller is configured to exert a force on each of the housing and the electrical circuit to affect a change in the electrical circuit and to provide a tactile feedback to a user of the electrosurgical device as the controller is moved relative to the housing. | 10-01-2009 |
20090248017 | Electrosurgical Pencil Including Improved Controls - The present disclosure relates to electrosurgical devices having a plurality of hand-accessible variable controls. An electrosurgical device configured for connection to a source of electrosurgical energy is provided and includes a housing; an electrical circuit supported within the housing, the electrical circuit being connectable to the source of electrosurgical energy; and a controller slidably supported on the housing, wherein the controller is configured to exert a force on each of the housing and the electrical circuit to affect a change in the electrical circuit and to provide a tactile feedback to a user of the electrosurgical device as the controller is moved relative to the housing. | 10-01-2009 |
20090248018 | Electrosurgical Pencil Including Improved Controls - The present disclosure relates to electrosurgical devices having a plurality of hand-accessible variable controls. An electrosurgical device configured for connection to a source of electrosurgical energy is provided and includes a housing; an electrical circuit supported within the housing, the electrical circuit being connectable to the source of electrosurgical energy; and a controller slidably supported on the housing, wherein the controller is configured to exert a force on the electrical circuit to affect a change in the electrical circuit and to exert a force on a surface of the housing to provide a tactile feedback to a user of the electrosurgical device as the controller is moved relative to the housing. | 10-01-2009 |
20090248019 | ELECTROSURGICAL SYSTEM - An electrosurgical tool can be used for tissue dissection. The tool can include several electrodes positioned on a jaw assembly. The electrodes can be selectively connected to a power source in a cutting arrangement or a coagulation arrangement. Switching from the cutting arrangement to the coagulation arrangement can be provided by opening and closing a handle to actuate the jaw assembly. | 10-01-2009 |
20090275940 | SURGICAL TOOL SYSTEM INCLUDING A TOOL AND A CONTROL CONSOLE, THE CONSOLE CAPABLE OF READING DATA FROM A MEMORY INTERNAL TO THE TOOL OVER THE CONDUCTORS OVER WHICH POWER IS SOURCED TO THE TOOL - A surgical tool system with a powered tool that includes a memory in which data describing the characteristics of the power signals that are to be sourced to the toll are stored. A control console based on the data in the tool memory sources the power signal to the tool. Both the data signals written out from the tool memory and the power signals from the console are exchanged over common console terminals and common tool terminals. An isolation circuit in the tool prevents the applied power signals from the console from adversely effecting the tool memory. | 11-05-2009 |
20090281540 | Apparatus, Systems and Methods for Treating a Human Tissue Condition - Apparatus, systems and methods for providing electrical energy to treat a tissue condition includes a high voltage pulse generator for generating short high voltage pulses of energy and a delivery device for receiving the pulses of energy. The delivery device includes at least a pair of needle electrodes for penetrating into the tissue and delivering the pulses of energy to the tissue. | 11-12-2009 |
20090281541 | CONDUCTION BLOCK SYSTEMS AND METHODS - Tissue treatment systems for cardiac surgical procedures can include an ablation and monitoring assembly having a first ablation element, a second ablation element, and a monitoring mechanism. Treatment methods may involve placing an ablation and monitoring assembly of the tissue treatment system at a patient tissue treatment site, applying a first ablative energy to a first tissue location via the first ablation element and a second ablative energy to a second tissue location via the second ablation element, monitoring a condition of the first tissue location with the monitoring mechanism, and modulating application of the first ablative energy to the first tissue location in response to the condition of the first tissue location while maintaining application of the second ablative energy to the second tissue location. Embodiments also include techniques for assessing a conduction delay across a lesion that involve evaluating local activation rates on various sides of a lesion. | 11-12-2009 |
20090287211 | CAUTERIZING SYSTEM - A cauterizing system having a cauterizer tool for performing cauterization procedures, a cauterizer cord for carrying power to the cauterizer tool, a plug and a power cord for carrying power from the plug to the cauterizer cord, and a housing in which is mounted a mechanism for retracting and extending the cauterizer cord and the power cord. | 11-19-2009 |
20100036378 | THERMAL IMAGING FEEDBACK FOR OPTIMIZING RADIO FREQUENCY ABLATION THERAPY - The invention relates to methods and systems for monitoring and regulating radiofrequency ablation therapy in order to maximize effectiveness of treatment. The invention uses an imaging scanner to provide feedback regarding location and extent of a treated volume. The feedback is used as input data for control of intensity, duration, and/or placement of radiofrequency treatment. Control of treatment parameters is automatic and/or modulated by an operator. | 02-11-2010 |
20100094282 | Electrosurgical apparatus and method of controlling electrosurgical apparatus - An electrosurgical apparatus in the present invention has a high frequency power generation section which generates high frequency power to be applied to a living tissue, a voltage detection section which detects the voltage of the high frequency power, a current detection section which detects the current of the high frequency power, an impedance computation section which computes the impedance of the living tissue on the basis of the voltage and the current, and a control section which, when the impedance exceeds a predetermined threshold value, performs control for increasing the frequency of the high frequency power stepwise on the high frequency power generation section. | 04-15-2010 |
20100094283 | MULTIFUNCTIONAL TELESCOPIC MONOPOLAR/BIPOLAR SURGICAL DEVICE AND METHOD THEREFORE - A multifunctional telescopic monopolar/bipolar electrosurgery pencil is disclosed for use with an electrosurgery unit (ESU). The monopolar/bipolar electrosurgery pencil includes a bipolar electrode having an insulator sandwiched between an active electrode and a return electrode wherein the bipolar electrode is connected to a handpiece capable of alternately effectuating cutting and coagulation with the bipolar electrode. The monopolar/bipolar electrosurgery pencil is capable of functioning as both a monopolar and bipolar device and can be used for open and closed laparoscopic and endoscopic procedures. Telescopic means for adjusting the length of the bipolar electrode is also provided as are means for smoke evacuation and suction/irrigation. The multifunctional telescopic monopolar/bipolar device can also be adapted for use with an ESU argon beam coagulator. | 04-15-2010 |
20100106158 | High-frequency surgical apparatus and high-frequency surgical method for closure of patent foramen ovale - A high-frequency surgical PFO closure apparatus used to treat patent foramen ovale in the heart includes a first and second electrodes which grasp living tissue of the patent foramen ovale; a high-frequency power supply section which supplies high-frequency power to the living tissue via the electrodes; an impedance measuring section which measures an impedance value by supplying high-frequency power to the living tissue; a grasping condition determining section which determines, based on the measured impedance value, a grasping condition regarding how the living tissue is grasped in blood by the electrodes; and a control section which controls high-frequency power supply at a predetermined power level needed to treat the patent foramen ovale, according to a result of the determination. | 04-29-2010 |
20100121320 | Electrosurgical system and an electrode assembly for an electrosurgical system - An electrosurgical system includes a first unit including a generator, and a second unit including an electrode assembly, the second unit being detachably connectible to the first unit such that radio frequency power can be conveyed to the electrode assembly, wherein the second unit firstly includes a passive electrical identification component having a parameter of a finite non-zero value indicative of a characteristic of the electrode assembly, and the second unit additionally includes an output circuit adapted to generate an identifiable characteristic signal, the first unit firstly including a sensing circuit for determining the value of the electrical identification component so as to identify the second unit when the second unit is connected to the first unit, and the first unit additionally including means for receiving the identifiable characteristic signal from the output circuit when the second unit is connected to the first unit. | 05-13-2010 |
20100130976 | REDUCING CROSS-TALK EFFECTS IN AN RF ELECTROSURGICAL DEVICE - A first probe and a second probe are coupled to a source of electrical energy. The first probe and the second probe are each configured to create a lesion when inserted into tissue and electrical energy is applied from the source of electrical energy. A first switch is coupled to the first probe and couples the first probe to ground when in a closed state. A second switch is coupled to the second probe and couples the second probe to ground when in a closed state. A control system is configured to receive an indication of a first parameter at the first probe and control the first switch based on the first parameter. The control system is also configured to receive an indication of a second parameter at the second probe and control the second switch based on the second parameter. | 05-27-2010 |
20100145333 | Light emitting electrosurgical scalpel - An improved electrosurgical scalpel, with light emission, for generating electrical signals intended for applications to the body of a patient via an electrosurgical electrode is provided. An electrosurgical scalpel includes a handle with a receptacle portion of a conductive member for mounting and retaining an electrode blade, a light source with a power source encapsulated within the handle and a means to direct the light emitted outwardly towards the electrode tip. Operation of a switch on the handle to an on position serves to complete a circuit, activating the light source and, thereby directing light through an opening or upper portion and out from the first end of the handle towards the distal end of the electrode blade. | 06-10-2010 |
20100168741 | SURGICAL OPERATION APPARATUS - A surgical operation apparatus includes a probe to which ultrasonic vibration is transmitted, and a flat plate-like blade which is formed at a distal end part of the probe, and can simultaneously output ultrasonic vibration and a high-frequency current, wherein the blade includes a contact area reduction part for reducing an area of contact with the living tissue to thereby increase a current density of the high-frequency current. | 07-01-2010 |
20100168742 | SURGICAL OPERATION SYSTEM AND SURGICAL OPERATION METHOD - The surgical operation system includes a treatment section for treating a living tissue of a treatment target; an ultrasound generation section for providing ultrasound to the treatment section; an ultrasound drive power supply section for supplying ultrasound drive power to generate ultrasound to the ultrasound generation section; a high-frequency power supply section for supplying high-frequency power to the treatment section; an impedance detection section for detecting the impedance of the ultrasound provided to the living tissue and the impedance of the high-frequency power supplied to the living tissue; and a control section for controlling the ultrasound energy amount and the amount of high-frequency power or a crest factor value thereof in response to the detected impedance values of ultrasound and high-frequency wave. | 07-01-2010 |
20100168743 | Tuned RF energy for selective treatment of atheroma and other target tissues and/or structures - A catheter and catheter system can use energy tailored for remodeling and/or removal of target material along a body lumen, often of atherosclerotic material of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage atherosclerotic material when the structure expands. An atherosclerotic material detector system may measure and/or characterize the atherosclerotic material and its location, optionally using impedance monitoring. | 07-01-2010 |
20100179541 | Wireless Electrosurgical Controller - The present disclosure relates to a wireless, bite activated switch for electrosurgery related electrosurgical systems, and methods of use thereof. During an electrosurgical procedure, a biocompatible switching device is gently held in the surgeon's mouth, typically between the teeth. The surgeon may activate an electrosurgical device by biting down on the switch. In embodiments, the wireless, bite activated switch includes a passive RFID tag that is powered by a radiofrequency signal transmitted by an interrogator included within an electrosurgical system unit. The wireless, bite activated may include a unique identifier which enable the electrosurgical system unit to respond only to a designated wireless device. | 07-15-2010 |
20100179542 | Method for Wireless Control of Electrosurgery - The present disclosure relates to a method for performing electrosurgery. The disclosed method includes providing a wireless, bite-activated switch configured for use within a surgeon's mouth. The disclosed switch includes an activator, a transponder, and an antenna. The switch communicates with an electrosurgical energy source, such as without limitation, an electrosurgical RF or microwave generator, to convey the state of the switch and activate the generator. The disclosed method provides providing the wireless switch with a unique identifier and associating the generator with the unique switch to ensure only the intended switch can control the electrosurgical generator. | 07-15-2010 |
20100198217 | HIGH FREQUENCY SURGERY APPARATUS AND METHOD OF OPERATING SAME - The invention concerns a high frequency surgery apparatus for cutting and/or coagulating biological tissue and methods of operating same. The high frequency surgery apparatus includes at least one high frequency generator which in operation forms a high frequency circuit with the tissue to be treated, with the production of an arc, and at least one measuring and calculating device which is connected for signal transmission to the high frequency circuit and which is adapted in operation to ascertain both a DC voltage in the high frequency circuit and also the amplitudes of at least one even and at least one odd harmonic of a fundamental frequency of the high frequency generator and to form a first tissue parameter representative of the kind of tissue to be treated from the relationship of the sum of the amplitudes of the even and the odd harmonics to the DC voltage and to output a tissue signal dependent on the first tissue parameter for subsequent processing. | 08-05-2010 |
20100204694 | DEVICES AND METHODS FOR PERCUTANEOUS ENERGY DELIVERY - The invention provides a system and method for percutaneous energy delivery in an effective, manner using one or more probes. Additional variations of the system include array of probes configured to minimize the energy required to produce the desired effect. | 08-12-2010 |
20100204695 | METHODS FOR APPLYING ENERGY TO TISSUE USING A GRAPHICAL INTERFACE - The invention provides a system and method for percutaneous energy delivery in an effective, manner using one or more probes. Additional variations of the system include array of probes configured to minimize the energy required to produce the desired effect. | 08-12-2010 |
20100211065 | ELECTROSURGICAL DEVICE - An electrosurgical assembly is disclosed, the assembly having two, three or more electrodes configured to provide advantageous tissue removal and precision for conducting electrosurgical procedures, including improved ablation and coagulation of tissue. The electrodes are configured and arranged so that energy can be applied in a highly uniform and precise fashion, depending upon the application. In addition, the electrosurgical assembly allows flexibility in use by, in some embodiments, allowing selective switching of the active and return electrodes, and also selective switching between ablation and coagulation modes. In certain embodiments the invention includes one or more electrodes having the ability to undergo changes in shape. | 08-19-2010 |
20100268224 | BIPOLAR ELECTROSURGICAL TOOL WITH ACTIVE AND RETURN ELECTRODES SHAPED TO FOSTER DIFFUSE CURRENT FLOW IN THE TISSUE ADJACENT THE RETURN ELECTRODE - A bipolar electrosurgical tool including a shaft to which active and return electrodes are mounted. The return electrode is mounted to the shaft and shaped to have an exposed surface that, in at least one direction has a substantially linear profile. A bore extends through the return electrode and opens into the portion of the exposed surface with the substantially linear profile. The active electrode is seated in the bore and extends forward from the exposed surface. A collar formed from electrically insulating material extends over the portion of the active electrode adjacent the return electrode. The collar extends both outwardly of the active electrode and forward of the exposed surface of the return electrode. | 10-21-2010 |
20100268225 | Methods for Image Analysis and Visualization of Medical Image Data Suitable for Use in Assessing Tissue Ablation and Systems and Methods for Controlling Tissue Ablation Using Same - A method of image analysis includes the initial step of receiving a data set including image data. The image data represents a sequence of 2-D slice images. The method includes the steps of segmenting an object of interest from surrounding image data of each slice image based on a topographic growth rule and a pixel intensity value threshold with respect to a starting pixel, and rendering a volume of the object of interest using (x,y) coordinates corresponding to boundaries of the segmented object of interest. | 10-21-2010 |
20100305565 | VOLTAGE THRESHOLD ABLATION APPARATUS - The present invention relates to the field of electrosurgery, and more particularly to systems and methods for ablating, cauterizing and/or coagulating body tissue using radio frequency energy. More in particular, the systems utilize voltage threshold means for controlling the voltage applied to tissue in a cycle-to-cycle manner. | 12-02-2010 |
20110015631 | ELECTROSURGERY GENERATOR FOR ULTRASONIC SURGICAL INSTRUMENTS - In one general aspect, various embodiments are directed to a surgical instrument that can supply mechanical energy and electrical energy to an end effector of the surgical instrument. The surgical instrument may be operated in a first operating mode in which a transducer of the surgical instrument produces mechanical energy, or vibrations, that are transmitted to the end effector and a second operating mode in which electrical energy, or current, can flow through the end effector to perform electrosurgery. In another general aspect, the surgical instrument may comprise a clamp, or jaw, which can be moved into a closed position to hold tissue against a waveguide, or blade, of the end effector. In the second operating mode of the surgical instrument, current can flow from a power source, through the waveguide, and return to the power source through a path comprising the jaw. | 01-20-2011 |
20110028969 | Connection Cable and Method for Activating a Voltage-Controlled Generator - A connection cable is disclosed for controlling a voltage-controlled generator such as an electrosurgery generator from a controlling device such as a robotic surgery system. The cable includes a first connector adapted to connect to a voltage-controlled generator and a second connector adapted to connect to a controlling device. Within the cable is a voltage divider interdisposed between the first connector and the second connector. The voltage divider is configured to divide a reference voltage provided by the voltage-controlled generator into at least one control voltage which is selectable by the controlling device. The cable additionally includes a plurality of electrical wires which operatively connect the first connector, the second connector and the voltage divider. During robotic electrosurgery, said operating parameters can be actuated by a surgeon operating at the robotic surgical system console, which causes a corresponding control voltage to be switched to a control voltage input on an electrosurgery generator, which, in turn, generates a corresponding electrosurgical signal in response thereto. | 02-03-2011 |
20110060332 | Electrocautery device with combination of suction and light emission - An electrocautery device is disclosed, which includes: a shell body having a housing and an internal partition connecting to the housing to define a receiving space and at least one air-removal channel, where the housing has at least one first opening, at least one second opening and at least one third opening at a first end, and has at least one fourth opening at an opposite second end, the first and second openings connect to the receiving space, and the third and fourth openings connect to the air-removal channel; at least one electrode-blade penetrating through the first opening into the receiving space; at least one light emitting component arranged at the first end; and a circuit component electrically connecting the electrode-blade and the light emitting component and provided for electrical connection of an external power supply. The electrocautery device has both abilities of illumination and exhausting harmful gases. | 03-10-2011 |
20110071520 | Methods and Apparatus for Smart Handset Design in Surgical Instruments - An electro surgical instrument is provided which includes a housing and an electrocautery blade supported within the housing and extending distally. The housing has a treatment portion attached and defining a chamber therein for retaining an activation circuit and a control circuit. The activation circuit is operably coupled to at least one activation element that is activatable to control the delivery of electrosurgical energy from a generator to tissue proximate the treatment portion. The control circuit includes a microprocessor to enable bidirectional communication between the electrosurgical instrument and the generator relating to usage information of the electrosurgical instrument. The usage information includes serial number of the electrosurgical instrument, instrument type, number of times the electrosurgical instrument has been activated, overall time the electrosurgical instrument has been used, operating parameters of the at least one activation element during each activation, operational status of the treatment portion during each activation, and power settings. | 03-24-2011 |
20110071521 | Automatic Control Circuit for Use in an Electrosurgical Generator - An automatic control circuit for an electrosurgical generator is herein disclosed. The automatic control circuit includes voltage and current sensing circuits, a processing circuit, a dosage calculating circuit, and control circuit. Samples of the voltage and current outputs are supplied to the processing circuit and the dosage calculating circuit to generate a dosage output signal. The dosage output signal is compared to a reference signal to generate a feedback signal that controls a drive circuit. | 03-24-2011 |
20110087220 | SURGICAL INSTRUMENT COMPRISING AN ENERGY TRIGGER LOCKOUT - A surgical instrument can comprise a lock movable between a locked position and an unlocked position, wherein the lock can be engaged with a drive shaft in order to prevent the drive shaft from being advanced when the lock is in its locked position. The surgical instrument can further comprise an electrical input and, in addition, a switch movable between an unactuated position and an actuated position, wherein the electrical input is electrically disconnected from an electrode when the switch is in its unactuated position, wherein the switch is configured to electrically couple the electrical input and the electrode when the switch is in its actuated position, and wherein the switch and the lock are operably coupled such that the movement of the switch from its unactuated position to its actuated position moves the lock from its locked position to its unlocked position. | 04-14-2011 |
20110092971 | Electrosurgical Pencil with Advanced ES Controls - An electrosurgical system is provided that includes an electrosurgical generator; and an electrosurgical pencil selectively connectable to the electrosurgical generator. The electrosurgical pencil includes an elongated housing; at least one electrocautery end effector removably supportable within the housing and extending distally from the housing, the electrocautery end effector being connected to the electrosurgical generator; and at least one voltage divider network supported on the housing. The at least one voltage divider network is electrically connected to the electrosurgical generator and controls at least one of the intensity of electrosurgical energy being delivered to the electrosurgical pencil and the mode of electrosurgical energy being delivered to the electrosurgical pencil. The voltage divider network generates a plurality of characteristic voltages which are measurable by the electrosurgical generator and which electrosurgical generator in turn transmits a corresponding waveform duty cycle at a particular intensity to the electrocautery end effector of the electrosurgical pencil. | 04-21-2011 |
20110106076 | MYOABLATION SYSTEM - Myoablation system (FIG. | 05-05-2011 |
20110112530 | Battery Powered Electrosurgery - An electrosurgical device is provided where the device includes a housing including a cavity defined therein for housing an electrosurgical energy source, a controller configured to control the output of the electrosurgical energy source, and a power supply configured to supply power to the electrosurgical energy source and the controller. The housing also includes an active port configured to be operatively coupled to an end effector wherein the end effector applies electrosurgical energy from the electrosurgical energy source to tissue. The device also includes a return port configured to be operatively coupled to a return pad to provide a return path for the electrosurgical energy applied to tissue. | 05-12-2011 |
20110118733 | ELECTROSURGICAL PENCIL - An electrosurgical pencil comprises a housing being an elongated shank member, and including a conical head end with an opening fixed on a front end thereof, and including an upper housing part and a lower housing part connecting with each other, wherein the upper housing part includes a first and a second holes proximate to the opening; a control panel disposed in an interior of the housing, and including a controlling member secured thereon in response to the first hole and the second hole, and including an engaging head mounted at a front end thereof in response to the opening of the housing to retain a blade; two buttons fixed in the first and the second holes respectively to correspond to the controlling member of the control panel so as to turn on and off the blade, thereby enabling to switch the blade easily and to obtain a preferred stability. | 05-19-2011 |
20110160725 | HIGH-FREQUENCY SURGICAL APPARATUS AND MEDICAL INSTRUMENT OPERATING METHOD - A high frequency surgery apparatus includes a high frequency current generation section that generates a high frequency current to be transmitted to a living tissue to be operated on, a high frequency probe that transmits the high frequency current to the living tissue and is provided with electrodes to perform treatment with the high frequency current, a time measuring section that measures an output time of the high frequency current, an impedance detection section that detects an electric impedance of the living tissue and an output control section that performs control so as to stop the output of the high frequency current upon detecting that the output time exceeds a first threshold and detecting that the electric impedance value exceeds a second threshold. | 06-30-2011 |
20110172659 | Ablation Device With User Interface at Device Handle, System Including Same, and Method of Ablating Tissue Using Same - An ablation device includes a handle assembly including a distal end, an ablation probe extending distally from the distal end of the handle assembly, and a user interface disposed at the handle assembly. The ablation probe is operably coupled to the user interface. The user interface includes a controller unit, a power on/off switch operably coupled to the controller unit, and at least one detector capable of generating an electrical signal. The controller is in communication with the at least one detector and configured to override operation of the power on/off switch in response to the electrical signal generated by the at least one detector. | 07-14-2011 |
20110184409 | SURGICAL INSTRUMENT - A device for morcellating tissue within a body cavity of a patient comprises a stationary tube ( | 07-28-2011 |
20110202056 | Laparoscopic Apparatus for Performing Electrosurgical Procedures - A system and apparatus for irrigating a surgical site during an electrosurgical procedure are disclosed. The system includes a hand piece having an elongated housing connected to a multi-lumen tube extending proximally from the housing and having an irrigation tube for delivering irrigation fluid, a suction tube for withdrawing irrigation fluid, and electrical wiring, a first controls for adjusting flow of irrigation fluid within the irrigation tube and second controls for adjusting flow of irrigation fluid within the suction tube. A valve cassette is connected to the multi-lumen tube, which includes an irrigation valve configured to control the flow within the irrigation tube and a suction valve configured to control the flow within the suction tube. A hardware control module controls the irrigation valve and the suction valve based on control signals from the first and second controls. | 08-18-2011 |
20110208185 | METHOD AND SYSTEM FOR ASSISTING A WIRE GUIDE TO CROSS OCCLUDED DUCTS - A method and a system for assisting a wire guide to cross obstructed ducts in mammalian body are described. The method and system is based on applying pulsed energy to occlusion obstructing the duct. The pulsed energy is applied by means of an auxiliary probe. The auxiliary probe is relatively displaceable with respect to the wire guide along a lumen provided within the probe. The distal region of the probe is provided with enhanced flexibility comparing with the reminder portion of the probe. | 08-25-2011 |
20110224668 | System and Method for Determining Proximity Relative to a Critical Structure - A system for determining proximity of a surgical device relative to an anatomical structure includes at least one surgical device having a sensor assembly operably coupled to a processing unit. The sensor assembly is configured to transmit at least one electrical signal through the target anatomical structure to elicit a measurable response from the target anatomical structure. The processing unit is configured to calculate a signature property value of the target anatomical structure based on the measurable response and to determine proximity of the at least one surgical device relative to the target anatomical structure based on a comparison between the signature property value and at least one other signature property. An indicator is operably coupled to the processing unit and is configured to alert a user of the identified target anatomical structure based on the determined proximity. | 09-15-2011 |
20110319892 | Electrosurgical pencil switch,circuitry, and method of assembly - Formation of an assemblage of electrically conductive components for a new electrosurgical pencil is disclosed, and assembly of those components in a method for automating the manufacture and combination of current carrying metal circuitry and operable switching components in “electrosurgical pencils” which supply current to an active terminal, for application of high frequency or high power electrical current to a surgical site, and control of such current through coaction of the elements of the switch. In manufacture, the design of the switch components allows start-to-finish automated assembly of the switch, whereby an array of identical multiple metal “frames” may be formed from a reel, then each frame separated and enclosed within molded plastic, and the resulting cabinet joined with a housing to create an inexpensive hand piece, for use with a high quality, reusable cable and plug assembly. | 12-29-2011 |
20120022524 | ELECTROSURGICAL CUTTING AND SEALING INSTRUMENT - A surgical instrument for supplying energy to tissue can comprise a jaw member comprising an electrode, wherein the electrode is configured to supply energy from a power source to captured tissue. The surgical instrument comprises a tissue-cutting element to transect the captured tissue. The rate of distal translation of the tissue-cutting element during the operational stroke may be regulated by a linear actuator, for example. | 01-26-2012 |
20120101497 | Surgical Pencil Enabling Suction - Described herein generally are surgical pencils which define a channel to enable suctioning of materials and methods of operating the surgical pencils. In one example embodiment, the surgical pencils perform cutting and coagulation. In one example embodiment, the surgical pencils include a lighting device. | 04-26-2012 |
20120116393 | CATHETER WITH LIQUID-COOLED CONTROL HANDLE - An electrophysiologic catheter with an improved control handle is provided. The catheter includes a heat transfer assembly to better dissipate heat in the control handle. The heat transfer assembly includes a pump, a reservoir containing a coolant, a heat transfer member, and a coolant transport network transporting coolant between at least the reservoir and the heat transfer member. In one embodiment, the heat transfer member is located within the control handle as a heat exchanger on the circuit board to receive the coolant for transferring heat from the integrated circuits to the coolant. In another embodiment, the heat transfer member is located on the circuit board directly surrounding the integrated circuits to internally cool the integrated circuit within the control handle. A second heat transfer member is located outside of the control handle as a heat exchanger. | 05-10-2012 |
20120203223 | APPARATUS AND METHOD FOR ELECTROSURGICAL SUCTION - The invention pertains to techniques or processes for managing surgical smoke. In one embodiment a suction apparatus evacuates the surgical smoke. For example, the suction apparatus may be arranged adjacent to an electrocautery electrode, which may generate smoke during operation, for evacuating smoke from a surgical site. | 08-09-2012 |
20120203224 | SINGLE-USE ELECTRONIC APPARATUS HAVING A THERMAL SWITCH - An electronic apparatus includes a circuit portion that is configured to control an operation of the electronic apparatus and a heat-activated mechanical switch including, for example, a shape-memory material. The shape-memory material has a property such that the shape-memory material assumes a predetermined shape when the electronic apparatus is heated to a transition temperature. The shape-memory material disables the apparatus by acting on the circuit portion when the shape-memory material assumes the predetermined shape. | 08-09-2012 |
20120259329 | Microwave Ablation Instrument with Interchangeable Antenna Probe - A surgical ablation system features a source of ablation energy, a handle adapted to operably couple to the source of ablation energy, and an ablation probe adapted to operably couple to the handle. The handle includes a housing having a proximal end and a distal end, a hub included within the housing having a plenum defined therein, and a proximal feedline in fluid communication at a proximal end thereof with the plenum and joined at a distal end thereof to a first coupling member. The ablation probe includes a probe hypotube shaft having a proximal end and a distal end, a second coupling member disposed at a proximal end of the probe hypotube shaft adapted to operably couple with the first coupling member, a distal tip adapted to penetrate tissue. Ablation energy is deliverable by the ablation probe when the source of ablation energy is operably coupled to the handle and the handle is operably coupled to the ablation probe. | 10-11-2012 |
20120330307 | Shaped Electrode Bipolar Resection Apparatus, System and Methods of Use - An electrosurgical instrument is provided and includes a housing configured to connect to a source of bipolar electrosurgical energy and an electrode body coupled to the elongated housing. The electrode body includes an electrode face, first and second bipolar electrodes and a blade. The electrode face is formed on the distal end of the electrode body and includes a longitudinal axis and a transverse axis therethrough. The first and second electrodes have a leading edge and a trailing edge, are formed on opposite sides of the longitudinal axis and connect to opposed electrical potentials. The blade is positioned between the electrodes with at least a portion of the blade extending beyond the electrode face. | 12-27-2012 |
20130030432 | Single Action Tissue Sealer - An endoscopic bipolar forceps includes a housing and a shaft, the shaft having an end effector assembly at its distal end. The end effector assembly includes two jaw members for grasping tissue therebetween. The jaw members are adapted to connect to an electrosurgical energy source which enable them to conduct energy through the tissue to create a tissue seal. A drive assembly is disposed within the housing which moves the jaw members. A switch is disposed within the housing which activates the electrosurgical energy. A knife assembly is included which is advanceable to cut tissue held between the jaw members. A movable handle is connected to the housing. Continual actuation of the movable handle engages the drive assembly to move the jaw members, engages the switch to activate the electrosurgical energy source to seal the tissue, and advances the knife assembly the cut the tissue disposed between the jaw members. | 01-31-2013 |
20130046302 | SURGICAL GLOVE SYSTEMS AND METHOD OF USING THE SAME - A surgical system including one or two surgical gloves having support systems such as, but not limited to, lights, electrical cautery, suction, and irrigation, attached to fingers of the surgical glove. The support systems may be controlled with switches positioned on the fingers upon which each support system is positioned. The switches may be operable with the thumb on the human hand upon which the surgical glove is attached. The system may also include (i) a safety switch coupled to the glove for controlling the first surgical system so that the first surgical system will not operate unless both the first switch and the safety switch are actuated, or (ii) a shunt for controlling fluid flow between the first and second conduits. Different support systems may be included in each glove for a bilateral system or may be combined into a single glove system. | 02-21-2013 |
20130060249 | SURGICAL TREATMENT DEVICE - A surgical treatment device which is used together with an endoscope, includes a sheath, a treatment portion which is arranged at the distal end portion of the sheath and includes first to third electrodes configured to treat a living tissue by using electrical energy, an operation portion which is arranged at a proximal end portion of the sheath and which is configured to operate the treatment portion, and a switching portion which is configured to switch between a first mode in which a treatment is given by using the first electrode and at least one of the second and third electrodes in the treatment portion and a second mode in which a treatment is given by using the second and third electrodes. | 03-07-2013 |
20130096556 | ELECTROSURGICAL POWER CONTROL - A method and apparatus include determining a value of a parameter associated with operation of an electrosurgical probe having a particular probe design, and determining whether the value of the parameter is within a range of values that has been predetermined for the particular probe design to indicate that the probe is treating tissue in a desired manner. Power is delivered to the probe according to an algorithm based upon a determination that the value of the parameter is outside the range of values The algorithm delivers power in a pulsed profile including portions of low power and portions of high power. In one embodiment, the tissue treatment is ablation, the parameter is impedance, and the method limits tissue necrosis to less than 200 microns. In another embodiment, the tissue treatment is shrinkage, the parameter is temperature, and the method limits power delivery when the probe is not shrinking tissue. | 04-18-2013 |
20130103030 | Dissection Scissors on Surgical Device - A surgical instrument includes a housing having first and second actuators and a shaft extends therefrom. End effector attaches to shaft and includes a first actuating device and a tissue treatment member. First actuating device is actuated by first actuator and includes first and second jaw members that actuate relative to one another about the first pivot. In a first position, jaw members are disposed in a spaced relation and in a second position cooperate to perform a first surgical procedure on tissue positioned therebetween. Second actuator deploys tissue treatment member relative to first jaw member from a first condition to a second condition. Tissue treatment member contacts the first jaw member in a first condition and a portion of the tissue treatment member is spaced away from the first jaw member and forms a loop between the tissue treatment member and first jaw member in a second condition. | 04-25-2013 |
20130103031 | Dissection Scissors on Surgical Device - A surgical instrument includes an end effector and a housing mechanically coupled to the end effector. The end effector includes a first actuating device configured to perform a first surgical procedure and a second actuating device integrally associated with the first actuating device and configured to perform a second surgical procedure, the second surgical procedure being independently operable and different than the first surgical procedure. An outer portion of the first actuating device and an outer portion of the second actuating device form a portion of an outer housing of the end effector. The housing includes a first actuator, mechanically coupled to the first actuating device and configured to impart movement to the first actuating device and a second actuator, mechanically coupled to the second actuating device and configured to impart movement to the second actuating device. | 04-25-2013 |
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 |
20130178852 | Monopolar Pencil With Integrated Bipolar/Ligasure Tweezers - The present disclosure is directed to an electrosurgical pencil with integrated ligasure tweezers. In accordance with one aspect of the present disclosure the electrosurgical pencil includes an elongated housing having an open distal end and including an actuator operatively associated therewith. First and second jaw members extend distally through the open distal end of the elongated housing and are transitionable between a closed position and an open position upon actuation of an actuator. At least one of the jaw members is configured to treat tissue with monopolar energy and both jaw members are configured to treat tissue with bipolar energy. At least one switch is operably coupled to a controller disposed in the housing and configured to activate the first and second jaw members to treat tissue with monopolar and bipolar energy. | 07-11-2013 |
20130261621 | METHODS AND SYSTEMS FOR USE IN CONTROLLING TISSUE ABLATION VOLUME BY TEMPERATURE MONITORING - This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue. | 10-03-2013 |
20130267950 | SURGICAL INSTRUMENT CONTROL - In a surgical instrument, a reciprocating element controls jaw opening and closing as it moves over a first range of motion and cuts tissue clamped between the jaws as it moves over a second range of motion. A first control input controls the reciprocating element's motion over the first range of motion, and a second control input controls the reciprocating element's motion over the second range of motion. As a result, over control by the first control input will not result in inadvertent tissue cutting. | 10-10-2013 |
20130289561 | Method of Switching Energy Modality on a Cordless RF Device - The present disclosure is directed to an electrosurgical instrument having a housing that includes a generator configured to output electrosurgical energy and a controller configured to control the output of the generator. The instrument also includes a switch coupled to the controller and configured to provide a signal to the controller to select the energy modality of the electrosurgical energy. An indicator is also included to provide an indication of the selected energy modality. | 10-31-2013 |
20130304066 | Apparatus for Activating an Electrosurgical Vessel Sealing Instrument Having an Electrical Cutting Mechanism - An electrosurgical forceps is provided and includes a housing, a shaft and a pair of opposing first and second jaw members. Each jaw member including a pair of spaced apart, electrically conductive tissue sealing surfaces adapted to connect to a source of electrosurgical energy such that the tissue sealing surfaces are capable of conducting electrosurgical energy through tissue held therebetween to effect a seal. One or both of the first and second jaw members includes an electrically conductive cutting element disposed thereon. A switch assembly operably disposed on the housing includes an activation member in operable communication with the source of electrosurgical energy for supplying electrosurgical energy to the first and second jaw members. Activation of the activation member provides electrosurgical energy to the tissue sealing surfaces for sealing tissue and electrosurgical energy to the cutting element for cutting the sealed tissue. | 11-14-2013 |
20140094798 | SINGLE ACTION TISSUE SEALER - An endoscopic bipolar forceps includes a housing and a shaft, the shaft having an end effector assembly at its distal end. The end effector assembly includes two jaw members for grasping tissue therebetween. The jaw members are adapted to connect to an electrosurgical energy source which enable them to conduct energy through the tissue to create a tissue seal. A drive assembly is disposed within the housing which moves the jaw members. A switch is disposed within the housing which activates the electrosurgical energy. A knife assembly is included which is advanceable to cut tissue held between the jaw members. A movable handle is connected to the housing. Continual actuation of the movable handle engages the drive assembly to move the jaw members, engages the switch to activate the electrosurgical energy source to seal the tissue, and advances the knife assembly the cut the tissue disposed between the jaw members. | 04-03-2014 |
20140100567 | SURGICAL CUTTING INSTRUMENT WITH ELECTROMECHANICAL CUTTING - A mechanical cutting device that makes use of mechanical (rotary) motion and suction to engage tissue also applies a cutting energy sufficient to vaporize the tissue. The rotation and suction are used to engage the tissue (sucking tissue into cutting windows when the cutting windows of inner and outer blades are aligned), and then the cutting member(s) function as an electrode(s) by having an electrical cutting signal applied thereto so that the cutting member(s) electrically cut the tissue as the cutting members relatively rotate. The electrical cutting signal is only applied as the windows become aligned up until the cutting of the tissue is completed. The cutting signal preferably is stopped after the cutting windows become misaligned. While the cutting windows are misaligned, a coagulation signal can be supplied to the cutting member so that the device functions as an electrocautery device. | 04-10-2014 |
20140155888 | INTEGRATED BLADE ASSEMBLY AND IDENTIFICATION CIRCUIT - An interchangeable tip comprising: a stylet; a blade module including: an enclosure that electrically connects, signally connects, or both the interchangeable tip to a power source, a signal source, or both; and blade circuitry having: one or more control buttons, one or more switches, or both for controlling operation one or more functions of the interchangeable tip. | 06-05-2014 |
20140155889 | APPARATUS AND METHOD FOR TUBESET WITH DRIVE AXLE - A device comprising: a handpiece having one or more attachment ports; a tubeset having one or more attachment features for connecting the tubeset to the one or more attachment ports in the handpiece; a removable tip having an attachment arm for attaching to the one or more attachment ports in the handpiece; wherein the device comprises one or more of the following: the handpiece includes an attachment port that attaches the handpiece to an active lead and a return lead and the device is adapted to use only the active lead or both leads so that the device can switch between bi-polar energy and mono-polar energy; the tubeset has one or more fluid conduits that are in fluid communication with the removable tip, wherein the removable tip is located at a distal end of the device; and the handpiece connects to one or more electrical input lines; the tubeset connects to one or more fluid lines, and the removable tip is free of direct connection to both the one or more electrical input lines and the one or more fluid lines. | 06-05-2014 |
20140155890 | ELONGATED ELECTROSURGICAL INSTRUMENT, A SWITCH MEANS FOR SAID INSTRUMENT, AND AN ASSEMBLY KIT - An elongated electrosurgical instrument ( | 06-05-2014 |
20140276793 | HANDPIECE FOR AN ABLATION DEVICE HAVING TOOL PIECE WITH MULTIPLE ORIENTATIONS AND METHOD FOR RECONFIGURING HANDPIECE - Handpiece for an ablation device has a handle assembly and a tool piece with a plurality of operative elements, each operative for a different ablative purpose and for reconfiguring a handpiece for an ablation device. The handle assembly is configured to repositionably hold the tool piece in first and second orientations by the first and second portions of the handle assembly. The handpiece presents a first of the plurality of operative elements with the tool piece being positioned in the first orientation and wherein the ablation device presents a second of the plurality of operative elements with the tool piece positioned in the second orientation. | 09-18-2014 |
20140276794 | ELECTROSURGICAL INSTRUMENT - An electrosurgical instrument comprising a first arm carrying at least a first and optionally a second and third electrode, and a second arm opposing the first arm, the second arm carrying one of a nonconductor element or one or more conductive elements. | 09-18-2014 |
20140276795 | COMBINATION ELECTROSURGICAL DEVICE - An electrosurgical device comprising: (a) forceps including: (i) a first working arm and (ii) a second working arm; (b) a blade electrode; wherein the electrosurgical device is capable of being switched between a first electrical configuration so that the electrosurgical device delivers a first therapy current through the first working arm, the second working arm, or both, and a second electrical configuration so that the electrosurgical device delivers a second therapy current through the blade electrode: and wherein the first working arm and the second working arm of the forceps are immobilized in the second electrical configuration so that both the forceps and the first therapy current are disabled. | 09-18-2014 |
20140276796 | COMBINATION ELECTROSURGICAL DEVICE - An electrosurgical system comprising: a handpiece including: (a) a first working arm, (b) a second working arm, and (c) a blade electrode; and an activation circuit having a first switch state and a second switch state, wherein a therapy current is conducted between the first working arm and the second working arm when the activation circuit is in the second switch state and the handpiece is in a first position; wherein the therapy current is conducted between the blade electrode, the first working arm, the second working arm, or a combination thereof and an adjacent handpiece component when the activation circuit is in the second switch state and the handpiece is in a second position; and wherein the therapy current is not conducted when the activation circuit is in the first switch state. | 09-18-2014 |
20140276797 | COMBINATION ELECTROSURGICAL DEVICE - An electrosurgical system comprising: a handpiece including: (a) a first power connector; (b) a second power connector; and (c) one or more moveable members having a first position and a second position; and an activation circuit having a first switch state and a second switch state, wherein the activation circuit in the first switch state does not allow either a first electrosurgical therapy signal or a second electrosurgical therapy signal to exit the handpiece; wherein when the activation circuit is in the second switch state and the one or more moveable members are in the first position the activation circuit allows the first electrosurgical therapy signal to exit the handpiece so that a first therapy current extends between the first power connector and the second power connector, and wherein when the activation circuit is in the second switch state and the one or more moveable members are in the second position the activation circuit allows the second electrosurgical therapy signal to exit the handpiece so that a second therapy current extends between the first power connector and the second power connector. | 09-18-2014 |
20140276798 | HAND SWITCHED COMBINED ELECTROSURGICAL MONOPOLAR AND BIPOLAR DEVICE - An electrosurgical instrument connectivity system providing monopolar and bipolar plugs each having a plurality of conductors which allow for use of combination monopolar/bipolar electrosurgical devices with industry standard electrosurgical generator outlets. | 09-18-2014 |
20140276799 | COMBINATION ELECTROSURGICAL DEVICE - An electrosurgical device: forceps having: a first working arm, a second working arm, wherein the electrosurgical device has a first electrosurgical configuration where the first working arm and the second working arm are in an opposed position so that the forceps deliver a first therapy current that flows between the first working arm and the second working arm; and wherein the electrosurgical device has a second electrosurgical configuration when the first working arm, the second working arm, or both are repositionable relative to each other so that the first working arm is extended with respect to the second working arm or vice versa and a second therapy current is delivered from the first working arm to a remote electrode. | 09-18-2014 |
20140276800 | COMBINATION ELECTROSURGICAL DEVICE - An electrosurgical system comprising: a handpiece including: a first working arm, a second working arm, and an activation circuit having a first switch state and a second switch state, wherein a therapy current is conducted between the first working arm and the second working arm when the activation circuit is in the second switch state and the handpiece is in a first position; wherein the therapy current is conducted between the first working arm or the second working arm, and an adjacent handpiece component when the activation circuit is in the second switch state and the handpiece is in a second position; and wherein the therapy current is not conducted when the activation circuit is in the first switch state. | 09-18-2014 |
20140276801 | ELECTROSURGICAL SYSTEMS AND METHODS - An electrosurgical device can have a housing and an electrode defining an energizable surface at least partially positioned externally of the housing. The electrode can move longitudinally relative to the housing. A shank of the electrode can be positioned within the housing and configured to urge against an energizable element in the housing. The energizable element can have a longitudinally movable electrical coupler configured to electrically couple with the shank portion when the shank portion urges against the energizable element. Related methods are also disclosed. | 09-18-2014 |
20140288553 | VESSEL SEALING INSTRUMENT WITH ELECTRICAL CUTTING MECHANISM - An end effector assembly for use with an instrument for sealing vessels and cutting vessels includes a pair of opposing first and second jaw members which are movable relative to one another from a first spaced apart position to a second position for grasping tissue therebetween. Each jaw member includes a pair of spaced apart electrically conductive tissue contacting surfaces which each have an insulator disposed therebetween, the conductive surfaces are connected to an electrosurgical energy source. The first jaw member includes an electrically conductive cutting element disposed within the insulator which extends towards the second tissue contacting surface to create a gap therebetween. The cutting element is inactive during the sealing process while the two pairs of electrically conductive surfaces are activated to seal tissue. During the cutting process, the cutting element is energized to a first potential and at least one electrically conductive tissue contacting surface is energized to a different potential to effect a tissue cut through the tissue held between the jaw members along the already formed tissue seal. | 09-25-2014 |
20150011994 | ELECTROSURGICAL PENCIL - An electrosurgical pencil adapted to receive an electrode controllable by an electrical signal for performing surgical operations. This pencil includes a housing, a circuit, and switch that is activatable from outside the housing for closing the circuit. The housing receives the electrode. The circuit is a flexible circuit and is positioned such that it is in direct contact with the electrode when the electrode is received in the housing. | 01-08-2015 |
20150080889 | SPLIT ELECTRODE FOR USE IN A BIPOLAR ELECTROSURGICAL INSTRUMENT - An end-effector assembly includes opposing first and second jaw members, at least one of which is movable relative to the other from a first position wherein the jaw members are disposed in spaced relation relative to one another to at least a second position closer to one another wherein the jaw members cooperate to grasp tissue therebetween. Each jaw member includes an electrically-conductive, tissue-engaging structure extending along a length thereof. Each electrically-conductive, tissue-engaging structure is configured to connect to a source of electrosurgical energy for conducting electrosurgical energy through tissue grasped between the opposing first and second jaw members to effect a tissue seal. The end-effector assembly includes a split electrode including a first electrode portion and a second electrode portion spaced apart from the first electrode portion and electrically-isolated therefrom by a gap defined therebetween. The first and second electrode portions are associated with one of the electrically-conductive tissue-engaging structures. | 03-19-2015 |
20150088128 | ELECTRODE FOR USE IN A BIPOLAR ELECTROSURGICAL INSTRUMENT - A end-effector assembly includes opposing first and second jaw assemblies, at least one of the first and second assemblies movable relative to the other from a first position wherein the jaw assemblies are disposed in spaced relation relative to one another to at least a second position closer to one another wherein the jaw assemblies cooperate to grasp tissue therebetween. The first jaw assembly includes a first housing and a first electrically-conductive tissue-engaging structure associated with at least a portion of the first housing. The second jaw assembly includes a second housing and a second electrically-conductive tissue-engaging structure associated with at least a portion of the second housing. The end-effector assembly includes a dissector electrode coupled along at least a portion of a lateral side portion of either one of the first housing or the second housing. The dissector electrode is electrically-isolated from the first and second electrically-conductive tissue-engaging structures. | 03-26-2015 |
20150100056 | THERAPEUTIC TREATMENT APPARATUS - A therapeutic treatment apparatus includes a first heat transfer unit, a second heat transfer unit, a first heat generating element, a second heat generating element, a temperature acquisition unit which acquires a first temperature of the first heat generating element and a second temperature of the second heat generating element, a control unit and an electric power input unit. The control unit determines a first control value and a second control value concerning the electric power input to the first and second heat generating element based on a lower one of the first temperature and the second temperature. The electric power input unit inputs an electric power to the first and second generating element based on the first and second control value. | 04-09-2015 |
20150105776 | SYSTEM AND METHOD FOR ENDOMETRIAL ABLATION - Methods, systems and devices for evaluating the integrity of a uterine cavity. A method comprises introducing transcervically a probe into a patient's uterine cavity, providing a flow of a fluid (e.g., CO | 04-16-2015 |
20150119885 | COMBINATION ELECTROSURGICAL DEVICE - An electrosurgical device comprising: (a) forceps including: (i) a first working arm and (ii) a second working arm; (b) a blade electrode; wherein the electrosurgical device is capable of being switched between a first electrical configuration so that the electrosurgical device delivers a first therapy current through the first working arm, the second working arm, or both, and a second electrical configuration so that the electrosurgical device delivers a second therapy current through the blade electrode; and wherein the first working arm and the second working arm of the forceps are immobilized in the second electrical configuration so that both the forceps and the first therapy current are disabled. | 04-30-2015 |
20150126998 | ELECTROSURGICAL SYSTEM HAVING GRASPER AND SNARE WITH SWITCHABLE ELECTRODE - An electrosurgical system includes a grasper and a snare that each includes electrodes. The grasper includes a first electrode that is attachable to a first output of an energy supply. The snare includes a second electrode that is attachable to a second output of the energy supply. When the first and second electrodes are coupled to the energy supply, the grasper and snare operate as a bipolar electrosurgical system. By grasping the tissue with the jaws of the grasper, the current path between the electrode on the snare and the electrode on the grasper is relatively short, and thus the system operates like a bipolar electrosurgical system. Accordingly, the applied energy can be focused to a small area, minimizing damage to surrounding tissue. In addition, energy suitable for coagulating the cut portion of the stalk of the removed tissue can be readily applied with the bipolar electrosurgical system. | 05-07-2015 |
20150141988 | Two-Stage Switch for Surgical Device - A surgical device assembly includes a vessel-sealing end effector having opposing surfaces engaging tissue when disposed therebetween, at least one of the surfaces having an energy delivering component, and a surgical device handle. The surgical device handle is connected to the end effector and has a switch with a switch-actuation direction in which the switch actuates, an unactuated position at a rest point of the switch, a first actuated position at first distance from the rest point in the switch-actuation direction, a second actuated position at a second distance further from the rest point in the switch-actuation direction than the first distance, and a force required to sustain the first actuated position being less than a force required to enter the second actuated position. The energy delivering component delivers energy when in at least one of the first and second actuated positions. | 05-21-2015 |
20150148798 | COMBINATION ELECTROSURGICAL DEVICE - An electrosurgical device comprising: (a) forceps including: (i) a first working arm and (ii) a second working arm; (b) a blade electrode; wherein the electrosurgical device is capable of being switched between a first electrical configuration so that the electrosurgical device delivers a first therapy current through the first working arm, the second working arm, or both, and a second electrical configuration so that the electrosurgical device delivers a second therapy current through the blade electrode; and wherein the first working arm and the second working arm of the forceps are immobilized in the second electrical configuration so that both the forceps and the first therapy current are disabled. | 05-28-2015 |
20150289928 | ELECTROSURGICAL DEVICE AND ITS USE FOR REMOVING LARGE BLADDER TUMORS - An electrosurgical apparatus having a HF power source providing HF energy for electrosurgery and a circuitry to control application of said HF energy to an electrode end used in electrosurgically operating on a patient is characterized in that said circuitry is adapted to apply in a dissecting mode said HF energy for dissecting to an electrode end automatically in the form of pulses such that the pulses automatically have a defined length. This device can be used for exploration of the bladder and en bloc radical removal of a large tumor using the active resection electrode loop of an optic resectoscope such that the bladder wall layers below the tumor base within the intact tissue margin are prepared using step-by-step coagulation and dissection of the tumor nutrient vessels and of the interlayer tissue fibers performed by impulsive turns-on of the electrosurgical apparatus in-use in the monopolar dissection mode. | 10-15-2015 |
20150305806 | ABLATION SYSTEMS INCLUDING PULSE RATE DETECTOR AND FEEDBACK MECHANISM AND METHODS OF USE - Methods, systems, and apparatuses for performing a renal denervation procedure using an ablation catheter are described. An ablation catheter system may include an ablation catheter including at least one electrode, a generator, and a pulse rate detector and feedback mechanism in electrical connection with the generator. In one embodiment, a method for controlling the temperature of a lesion created inside of a patient includes determining the pulse rate of the patient prior to, and optionally during, a renal denervation procedure and adjusting the amount of energy distributed to an ablation catheter electrode based at least in part on the pulse rate of the patient so as to control the temperature of the lesion being created. By controlling the temperature of the lesion during the ablation process, more consistent patient outcomes may be provided. | 10-29-2015 |
20150327912 | CLIP-OVER DISPOSABLE ASSEMBLY FOR USE WITH HEMOSTAT-STYLE SURGICAL INSTRUMENT AND METHODS OF MANUFACTURING SAME - A clip-over disposable assembly includes a switch assembly and a disposable body. The disposable body includes a first disposable member, a second disposable member including first and second wall portions, and a third disposable member. The first wall portion defines a first aperture therethrough and a first cavity configured to receive therein a first portion of the switch assembly. The third disposable member includes a third wall portion, wherein a body of the second disposable member and the third wall portion define an opening configured to allow a shaft of a hemostat-style surgical instrument to pass therethrough. The second wall portion and the third wall portion cooperatively define a chamber in communication with the opening and configured to receive therein at least a portion of the shaft of the hemostat-style surgical instrument, wherein the at least a portion of the shaft is received in the chamber from an off-axis position. | 11-19-2015 |
20150351829 | ENDOSCOPIC VESSEL SEALER AND DIVIDER FOR LARGE TISSUE STRUCTURES - An endoscopic bipolar forceps includes a housing having a shaft affixed thereto, the shaft including jaw members at a distal end thereof. The forceps also includes a drive assembly which moves the jaw member relative to one another for manipulating tissue and a knife assembly for cutting tissue disposed between jaw members. The forceps also includes a knife lockout mechanism operatively connected to the drive assembly. Movement of the drive assembly moves the knife lockout mechanism from a first orientation in obstructive relationship with the knife bar to prevent movement thereof to a second position which allows selective, unencumbered movement of the knife assembly to cut tissue disposed between the jaw members. | 12-10-2015 |
20150351831 | ABLATION APPARATUS AND SYSTEM TO LIMIT NERVE CONDUCTION - An electrosurgical probe including a probe body which defines a longitudinal probe axis. The electrosurgical probe also includes a first and second conductive electrode, each disposed along the probe axis. The surface area of the first conductive electrode is greater of the surface area of the second conductive electrode. The ratio of the surface area of the first conductive electrode to the surface area of the second conductive electrode may be adjustable. Another aspect of the present invention is an electrosurgical probe having a probe body which defines a single longitudinal probe axis. The electrosurgical probe of this aspect of the invention further includes more than two electrodes operatively disposed at separate and distinct positions along the axis of the probe body. The electrodes may be selectively connected to one of or a combination of a stimulation energy source, an ablation energy source or a ground for either energy source. Another aspect of the present invention is a method of placing an electrosurgical probe such as described above for specific ablation procedures. | 12-10-2015 |
20160022347 | MULTI-MODE ELECTROSURGICAL APPARATUS - A multi-mode electrosurgical apparatus for use in cold plasma applications, electrosurgical cutting, electrosurgical coagulation and mechanical cutting is provided. The electrosurgical apparatus includes a housing having a passage extending therethrough, an electrically conducting tube being disposed in the passage of the housing; an insulating outer tube disposed around the electrically conducting tube coupled to the housing, the electrically conducting tube being movable along a longitudinal axis of the housing and outer tube; an electrically conducting blade coupled to the distal end of the electrically conducting tube, and a transformer assembly disposed on a proximal end of the housing, the transformer assembly including a first transformer and a first switch for selectively coupling the first transformer and an external second transformer to the electrically conducting tube for providing electrosurgical energy thereto. | 01-28-2016 |
20160038215 | SURGICAL FORCEPS - An end effector of a forceps includes first and second jaw members movable between spaced-apart and approximated positions for grasping tissue. Each jaw member includes a tissue sealing plate that is selectively energizable. The tissue sealing plates are configured to conduct energy therebetween and though tissue to seal tissue. A knife includes a distal surface and an upper surface. The knife is selectively translatable between a retracted position and an extended position wherein the knife extends between the jaw members. The distal surface is configured for dynamic tissue cutting upon translation of the knife from the retracted to the extended position. The upper surface is configured for static tissue cutting with the knife in the extended position. The knife is selectively energizable and is configured to conduct energy between the knife and one or both of the tissue sealing plates and through tissue to electrically cut tissue. | 02-11-2016 |
20160051273 | SURGICAL FORCEPS AND LATCHING SYSTEM - A surgical forceps comprising: a first working arm and a second working arm configured to move towards and away from each other; and an electromagnetic latching system; wherein the electromagnetic latching system is configured to create a force that is in a direction aligned with closing of the forceps or opposite to the closing of the forceps when an electromagnetic activation button is depressed. | 02-25-2016 |
20160051315 | SIMULTANEOUS I-BEAM AND SPRING DRIVEN CAM JAW CLOSURE MECHANISM - A surgical instrument includes an end effector and a handle assembly. The end effector includes a movable jaw and a cutting element slidably movable within the end effector. The handle assembly includes an energy button configured to deliver energy to at least one electrode located in the end effector, a trigger plate operably coupled to a jaw closure mechanism, the trigger plate configured to close the movable jaw, a firing plate operably coupled to a cutting element drive mechanism. The firing plate is configured to drive the cutting element independently of the jaw closure mechanism. The cutting element drive mechanism is configured to close the movable jaw when the cutting element is driven. The handle assembly further includes a trigger operatively coupled to the trigger plate and the firing plate. The jaw closure mechanism and the cutting element drive mechanism are configured to simultaneously close the movable jaw. | 02-25-2016 |
20160051320 | ELECTROSURGICAL INSTRUMENT WITH SELECTIVE CONTROL OF ELECTRODE ACTIVITY - Electrosurgical instruments are configured to provide increased ablative capability without requiring increased current density at the electrode. The electrosurgical instrument includes an elongate probe having a handle portion and a distal end. An electrode is disposed at the distal end and is configured to ablate tissue. The instrument includes an aspiration lumen, e.g., that may open through the electrode, at the distal end to aspirate fluid, tissue debris, and gaseous bubbles through the aspiration lumen. The electrosurgical instrument includes a user operable control (e.g., button) on the handle portion for selectively placing the instrument in boosted ablation mode, which can be achieved by restricting aspiration of fluid through the aspiration lumen, reducing active cooling of the electrode, and causing increased ablative sparking density at the electrode (e.g., by at least 10%, 20%, 35%, or 50%). | 02-25-2016 |
20160058496 | ENERGY-ACTIVATION MECHANISMS FOR SURGICAL INSTRUMENTS - A surgical instrument includes a housing, energizable member, first activation switch, cable assembly, and second activation switch. The housing is operatively associated with the energizable member. The first activation switch is coupled to the energizable member and is selectively transitionable from an open condition to a closed condition. The cable assembly is coupled to the housing at a first end and includes a plug at a second, opposite end, the plug housing a second activation switch selectively transitionable from an open condition to a closed condition. The plug is adapted to connect to the source of electrosurgical energy, wherein transitioning of the first activation switch from the open condition to the closed condition transitions the second activation switch from the open condition to the closed condition such that the second activation switch communicates with the source of electrosurgical energy to initiate the supply of energy to the energizable member. | 03-03-2016 |
20160058498 | VESSEL SEALING INSTRUMENT AND SWITCH ASSEMBLIES THEREOF - A switch assembly for an electrosurgical instrument includes a switch housing, a switch, a first biasing member, and an additional biasing member. The switch is disposed within the switch housing and movably disposed between an activated position to initiate delivery of electrosurgical energy and a deactivated position to terminate delivery of electrosurgical energy. The first biasing member is selectively positionable adjacent the switch and in communication therewith. The first biasing member includes a first thickness that provides a first resistance to resist movement of the switch between the activated and the deactivated positions when positioned in the switch housing. The additional biasing member is selectively interchangeable with the first biasing member. The additional biasing member includes a different thickness that provides a different resistance to resist movement of the switch between the activated and the deactivated positions when positioned in the switch housing. | 03-03-2016 |
20160081742 | INGRESS PROTECTION FOR ELECTROSURGICAL PENCIL SWITCH - A surgical instrument includes a switch base, a power bus coupled to the switch base, an electrical lead coupled to the power bus, an actuator operatively engaged with the power bus, an actuator operatively engaged with the power bus, a membrane, and a housing. The switch base has top, bottom, and side surfaces. The membrane is disposed over the top surface of the switch base and over the power bus to seal the top surface of the switch base. The housing defines proximal and distal ends and a switch base cavity between the proximal and distal ends. The housing includes bulkheads that form a plurality of fluid impermeable seals that are disposed adjacent one of the proximal and distal ends. The fluid impermeable seals are configured to deter fluid from penetrating a proximal portion of the switch base cavity within which the electrical lead is coupled to the power bus. | 03-24-2016 |
20160095664 | SURGICAL GLOVE SYSTEMS AND METHOD OF USING THE SAME - A surgical system that includes a surgical glove configured to be removably attached to a human hand is disclosed. The surgical glove can include a first surgical instrument attached to the surgical glove, where the first surgical instrument is nonremoveably, integrally attached to the surgical glove during the formation of the surgical glove, and where the first surgical instrument is coupled to a finger of the surgical glove; a first switch attached to the surgical glove for controlling the first surgical support system; and a first actuating element attached to a thumb of the surgical glove. The first actuating element can be a discrete element. The first switch can be actuated when the first actuating element is placed in close proximity to the first switch, and a thumb of said surgical glove can be free of surgical support systems. | 04-07-2016 |
20160106496 | BLADE DEPLOYMENT MECHANISMS FOR SURGICAL FORCEPS - A forceps includes first and second shafts, each having a jaw member disposed at a distal end thereof. At least one jaw member is moveable from an open to a closed position for grasping tissue therebetween. At least one jaw member is configured for reciprocation of a blade therethrough. A trigger assembly includes a trigger and at least one linkage coupled to the trigger and to the blade such that rotation of the trigger translates the blade between the retracted and the extended position. An interference member moveable between a locked position and an unlocked position is also provided. The interference member is configured to engage the linkage(s) when in the locked position to inhibit translation of the blade from the retracted to the extended position. | 04-21-2016 |
20160113708 | Multiple Treatment Zone Ablation Probe - An energy delivery probe and method of using the energy delivery probe to treat a patient is provided herein. The energy delivery probe has at least one probe body having a longitudinal axis and at least a first trocar and a second trocar. Each trocar comprises at least two electrodes that are electrically insulated from each other, and each electrode is independently selectively activatable. An insulative sleeve is positioned in a coaxially surrounding relationship to each of the first trocar and the second trocar. The probe also has a switching means for independently activating at least one electrode. The method involves independently and selectively activating the first and second electrodes to form an ablation zone, then repeating the ablation by delivering energy to a second set of electrodes, producing one or more overlapping ablation zone, and eliminating the need to reposition the ablation probes. | 04-28-2016 |
20160135881 | RECANALIZING OCCLUDED VESSELS USING RADIOFREQUENCY ENERGY - A method and systems for treating chronic total occlusions, particularly those that are difficult to treat, is disclosed. hi this approach, recanalizing the CTO is achieved using a combined antegrade and retrograde approach. The proximal end of the occlusion is penetrated using an antegrade wire, using a traditional approach. Using collateral vessels, the distal end of the occlusion is crossed in a retrograde fashion. By appropriately maneuvering each member and applying radiofrequency energy between the proximal and distal ends of the occlusion, a continuous channel is created. | 05-19-2016 |
20160157918 | Electrosurgical Device with Vacuum Port - An electrosurgical device having an electrode with a first portion whose exterior is electrically uninsulated, a second portion whose exterior is electrically insulated, and a third portion. An elongated hollow body has an internal cavity, a front end, a rear end, an external surface. An electrical circuit is arranged within the body. The second portion of the electrode is not surrounded by the hollow body. A first button is arranged on the external surface of the body for controlling a current flow at a first level. A vacuum tube is slidably engaged by the body. The vacuum tube is configured with a blade holder to reversibly receive the third portion of the electrode such that electrical contact is made between the electrode and a conductor which is connected to the electrical circuit by electrical connector. A vacuum outlet port is arranged near the rear end, and the outlet port, internal cavity, and vacuum inlet are in fluid communication with each other. | 06-09-2016 |
20160175029 | TISSUE SEALING AND CUTTING INSTRUMENT WITH LOCKING FEATURES | 06-23-2016 |
20160175030 | RF TISSUE SEALER, SHEAR GRIP, TRIGGER LOCK MECHANISM AND ENERGY ACTIVATION | 06-23-2016 |
20160175032 | ELECTROSURGICAL SYSTEM | 06-23-2016 |
20160175037 | END-EFFECTOR ASSEMBLY INCLUDING A PRESSURE-SENSITIVE LAYER DISPOSED ON AN ELECTRODE | 06-23-2016 |
20160184005 | SURGICAL SEALING TOOL - A surgical tool includes first and second arms including a finger ring on the back section of each arm. A spring is positioned between the back sections of the arms, with the spring urging the back sections of the arms away from each other. First and second jaws are located on the front section of the first and second arms, with first and second electrodes on the first and second jaws. An irrigation port is located on the first arm connected to an irrigation line leading to one or more irrigation fluid outlets in or adjacent to the first or second electrode. | 06-30-2016 |
20190142489 | ENERGY TREATMENT SYSTEM AND CONTROL METHOD THEREOF | 05-16-2019 |
20190142506 | ENERGY TREATMENT INSTRUMENT, CONTROL DEVICE, AND TREATMENT SYSTEM | 05-16-2019 |