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| Number | Title | Issue Date |
| 8088126 | Method and apparatus for plasma incision of cardiovascular tissue An apparatus and method for performing surgery using plasma is described. In one exemplary embodiment, the apparatus includes a radiofrequency signal generator, a conditioning network coupled to the radiofrequency signal generator, and a catheter coupled to the cond... | 01/03/2012 |
| 8080008 | Method and system for programming and controlling an electrosurgical generator system An electrosurgical generator system includes an electrical generator having an RF stage for outputting electrical energy having at least one waveform for performing an electrosurgical procedure. The system further includes at least one control module executable on a... | 12/20/2011 |
| 8048069 | User interface for ablation therapy The disclosure describes a user interface that may be used to control ablation therapy and monitor ablation therapy progress in systems that utilize wet electrode ablation techniques. The user interface presents a virtual electrode depth icon to a user that indicate... | 11/01/2011 |
| 8012150 | Method and system for programming and controlling an electrosurgical generator system A method and system are disclosed enabling configuration of a control system for an electrosurgical generator system for creating new surgical applications without changing the underlying software system. The system includes an outer loop controller for generating a... | 09/06/2011 |
| 7972329 | Electrosurgical generator and method for cross-checking output power The functionality and the output power delivered are evaluated in an electrosurgical generator by calculating first and second values related to the output power delivered by using separate first and second computations. The two calculated values are compared, and a... | 07/05/2011 |
| 7901401 | Electrosurgical system An electrosurgical system comprises a generator and an instrument including a first electrode, a second electrode, and an insulating spacer separating the first and second electrodes. The generator repeatedly measures a characteristic of the radio frequency output s... | 03/08/2011 |
| 7896871 | Impedance computation for ablation therapy This disclosure describes impedance computation techniques that may reduce the effect of crosstalk, thus generating more accurate impedance measurements. In particular, an ablation system models the electrical interaction among the active electrodes and a common ret... | 03/01/2011 |
| 7799020 | Near-instantaneous responsive closed loop control electrosurgical generator and method An electrosurgical generator has a control system formed by an array of logic gates programmed to execute mathematical algorithms for regulating at least one parameter of output power, output voltage or output current of an output electrosurgical signal in a closed ... | 09/21/2010 |
| 7744593 | High-frequency power supply device and electrosurgical device A high-frequency power supply device and an electrosurgical device are provided which can automatically control the output of an appropriate high-frequency current in accordance with the condition of a biological tissue to be treated. A phase detection unit detects ... | 06/29/2010 |
| 7455670 | System and method for the treatment of heart tissue A device is disclosed for locating and treating an infarct scar in a heart. The device includes a catheter, a collapsible heater and energizing means connected to the collapsible heater for energizing the collapsible heater to raise the temperature of the infarct sc... | 11/25/2008 |
| 7393354 | Electrosurgical pencil with drag sensing capability An electrosurgical pencil (100) configured and adapted to support an electrocautery blade (116). A strain gauge (130) is affixed to the proximal, end of the electrocautery blade and measures the displacement of the blade as a result of resistanc... | 07/01/2008 |
| 7367972 | Ablation system A system for creating lesions and assessing their completeness or transmurality. Assessment of transmurality of a lesion is accomplished by monitoring the impedance of the tissue to be ablated. Rather than attempting to detect a desired drop or a desired increase im... | 05/06/2008 |
| 7364577 | Vessel sealing system A method for electrosurgically sealing a tissue includes steps of: (A) applying a first pulse of RF energy to the tissue; and (B) applying at least one subsequent RF energy pulse to the tissue and keeping constant or varying RF energy parameters of individual pulses... | 04/29/2008 |
| 7357802 | Electrosurgical system with uniformly enhanced electric field and minimal collateral damage The present invention is directed towards an electrosurgical cutting system. The system comprises an electrically conductive blade, having first and second blade surfaces. First and second insulators are affixed to the first and second blade surfaces, respectively. ... | 04/15/2008 |
| 7344532 | Electrosurgical generator and system In an electrosurgical generator for generating radio frequency power, the generator comprises a radio frequency output stage having three or more output connections, one or more sources of output power coupled to the output stage, and a controller operable to cause ... | 03/18/2008 |
| 7342458 | Negative gain transductance amplifier circuit The invention proposes a negative gain transconductance amplifier circuit (1) for capacitive load that includes: an RC serial circuit connected between an input terminal (E) of the amplifier circuit and a intermediate terminal (A); an amplificat... | 03/11/2008 |
| 7336061 | Group wiring system allowing locating of wire pairs and method for locating wire pairs in group wiring system A group wiring system includes a hub of a server system, a distribution frame including a plurality of wire pair receptacles, a plurality of remote receptacles, a testing device, and a plurality of testing circuits. Each testing circuit is coupled between conductive... | 02/26/2008 |
| 7331956 | Methods and apparatus for treating back pain Apparatus and methods for treating back pain of a patient by denervation of an intervertebral disc or a region of the posterior longitudinal ligament by the controlled application of heat to a target tissue. In one embodiment, the invention may include a procedure c... | 02/19/2008 |
| 7329255 | System for regulating heating in a tissue sealing and cutting device A device for handling tissue; including: a main body; a pair of opposing arms connected to the main body, the opposing arms having working surfaces thereon; a heating element disposed on one of the working surfaces; and a resistive element wired in parallel with the... | 02/12/2008 |
| 7306592 | System and method for regulating an amount of thermal energy generated by an electrosurgical tool An bipolar electrosurgical tool (10) for cauterizing or ablating tissue. The tool has a nose cone (12) which serves as a handle. A conductive shaft (14) extends from the nose cone. A tip assembly (18) with an active electrode (20) ... | 12/11/2007 |
| 7303557 | Vessel sealing system A method for electrosurgically sealing a tissue includes steps of: (A) applying a first pulse of RF energy to the tissue; and (B) applying at least one subsequent RF energy pulse to the tissue and keeping constant or varying RF energy parameters of individual pulses... | 12/04/2007 |
| 7291161 | Articulated clamping member A grasper is provided having a handle with an elongated shaft secured thereto. First and second jaw members with opposed clamping surfaces are secured to the shaft, with one jaw member being slidably secured with respect to the other jaw member. The jaw members are ... | 11/06/2007 |
| 7288092 | Method and apparatus for ablating cardiac tissue with guide facility A method and apparatus for ablation of cardiac tissue at a selected cardiac location is achieved by providing at least one flexible elongated guide facility having a first end, a second end, and an intermediate portion extending between the first and second ends and... | 10/30/2007 |
| 7288991 | Power control circuit for accurate control of power amplifier output power According to an exemplary embodiment, an amplification module includes a power control circuit. The amplification module further includes a power amplifier coupled to the power control circuit and configured to draw a supply current and receive a supply voltage from... | 10/30/2007 |
| 7282048 | Electrosurgical generator and system In an electrosurgical generator for generating radio frequency power, the generator includes a radio frequency output stage having two or more output connections, and a power supply coupled to the output stage for supplying power to the output stage. A controller is... | 10/16/2007 |
| 7270658 | Systems and methods for electrosurgery Methods and apparatus for selectively applying electrical energy to a target location within a patient's body, particularly including tissue in the spine. In a method of the invention high frequency (RF) electrical energy is applied to one or more active electrodes ... | 09/18/2007 |
| 7270661 | Electrosurgical apparatus and methods for treatment and removal of tissue Apparatus and methods for ablating, severing, cutting, shrinking, coagulating, or otherwise modifying a target tissue to be treated. In a method for treating a target tissue, an active electrode of an electrosurgical probe is positioned in at least close proximity t... | 09/18/2007 |
| 7270659 | Methods for electrosurgical treatment of spinal tissue Systems, apparatus, and methods for treating spinal tissue and other body structures in open and endoscopic spine surgery to relieve symptoms, such as neck or back pain. In particular, the present invention provides methods for the controlled heating of various tiss... | 09/18/2007 |
| 7270660 | Apparatus and method for sealing and cutting tissue An axial elongate bipolar tissue sealer/cutter and method of use by a surgeon for electrosurgery on tissue. A chassis on a handle extends axially for axial movement. An effector on a distal end of the chassis first contacts tissue with axial movement. The effector p... | 09/18/2007 |
| 7255694 | Variable output crest factor electrosurgical generator An electrosurgical generator is disclosed capable of controlling the output crest factor, as well as the output power of the electrosurgical generator across a range of tissue impedances during electrosurgery. The control occurs automatically, in real time and conti... | 08/14/2007 |
| 7252088 | Methods of powering medical equipment for the treatment of sleep apnea An uninterruptible D.C. battery backup power supply is designed to operate medical respiratory treatment equipment such as a machine for the treatment of sleep apnea. A power supply with D.C. backup consists of a rectifier/charger, a rechargeable battery and a D.C.-... | 08/07/2007 |
| 7250048 | Ablation system and method of use A system and method for creating lesions and assessing their completeness or transmurality. Assessment of transmurality of a lesion is accomplished by monitoring the impedance of the tissue to be ablated. Rather than attempting to detect a desired drop or a desired ... | 07/31/2007 |
| 7244255 | High-frequency surgical generator A high-frequency generator for high-frequency surgery is driven by a d.c. voltage supply. This d.c. voltage supply has a first working mode for transferring energy in a direction of the high-frequency generator, and also a second working mode for transferring energy... | 07/17/2007 |
| 7241293 | Electrode screen enhanced electrosurgical apparatus and methods for ablating tissue Electrosurgical methods and apparatus for the controlled ablation of tissue from a target site of a patient. The instrument includes a shaft having proximal and distal end portion and an active screen electrode on the distal end portion; a return electrode arranged ... | 07/10/2007 |
| 7241292 | Cardiac ablation device with movable hinge A method and apparatus for transmural ablation using an instrument containing two electrodes or cryogenic probes. A clamping force is exerted on the two electrodes or probes such that the tissue of the hollow organ is clamped therebetween. Bipolar RF energy is then ... | 07/10/2007 |
| 7238185 | Method and apparatus for plasma-mediated thermo-electrical ablation An apparatus and method for cutting a material including conducting and non-conducting materials such as biological tissue, cellulose or plastic while the material is submerged in a conductive liquid medium. The apparatus has a cutting electrode with an elongate cut... | 07/03/2007 |
| 7238181 | High-frequency surgery generator A high-frequency generator for high-frequency surgery comprises a power generator for supplying high frequency energy at a base frequency. A standardizing factor is determined, with which an output variable from the power generator must be scaled in order to attain ... | 07/03/2007 |
| 7220260 | Electrosurgical system An electrosurgical system comprises a generator and an instrument including a first electrode, a second electrode, and an insulating spacer separating the first and second electrodes. The generator repeatedly measures a characteristic of the radio frequency output s... | 05/22/2007 |
| 7214224 | Electrosurgical system An electrosurgical system includes a generator (10) for generating radio frequency power, an electrosurgical instrument (12) including at least two electrodes, and an identification element (80) representative of at least the number of electrode... | 05/08/2007 |
| 7211081 | Electrosurgical generator An electrosurgical generator for supplying RF power to an electrosurgical instrument for cutting or vaporising tissue has an RF output stage (42) with an RF power bridge (Q1, Q2, Q3, Q4), a pair of output lines (74) and a se... | 05/01/2007 |
