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| Number | Title | Issue Date |
| 8187262 | Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling An electrosurgical generator is disclosed. The electrosurgical generator includes a power supply for generating a DC voltage. The electrosurgical generator also includes a first parallel inductor-capacitor circuit being driven by a first signal at a first predetermi... | 05/29/2012 |
| 8182477 | Electrosurgical system employing multiple electrodes and method thereof A system for heat ablation of tissue in a patient comprises a plurality of electrodes operatively connected to a source of radiofrequency energy and configured to apply RF energy to tissue at a patient site, a plurality of RF current restricting circuits, each circu... | 05/22/2012 |
| 8177782 | Connection cable A connection cable which allows various high-frequency surgical instruments to be used with various high-frequency surgical devices. The connection cable includes a first connecting means designed for connection to a socket of the high-frequency surgical device and ... | 05/15/2012 |
| 8172835 | Subcutaneous electric field distribution system and methods Apparatus and methods for dynamically controlling electric field distribution within tissue disposed at various depths beneath the skin at a target region of a patient's body by independently controlling the electric potential of each of a plurality of electrodes in... | 05/08/2012 |
| 8172836 | Electrosurgical system having a sensor for monitoring smoke or aerosols An electrosurgical system includes an electrosurgical generator configured to generate electrosurgical energy and a sensor. The sensor is coupled to the electrosurgical generator and senses aerosol and/or smoke generated during application of the electrosurgical ene... | 05/08/2012 |
| 8167875 | Energy delivery algorithm for medical devices A method for controlling energy applied to tissue as a function of at least one detected tissue property includes the initial step of applying energy to tissue. The method also includes the steps of initially adjusting the energy applied to tissue and determining a ... | 05/01/2012 |
| 8152801 | Tissue ablation using pulse modulated radio frequency energy Tissue ablation systems and methods are provided. Ablation energy (e.g., radio frequency energy) is delivered to the tissue and a physiological parameter (e.g., impedance and/or temperature) indicative of a change in moisture concentration of the tissue is sensed. T... | 04/10/2012 |
| 8152800 | Electrosurgical systems and printed circuit boards for use therewith An electrosurgical system for treating tissue is disclosed. The system includes an electrosurgical generator, a printed circuit board, a generator ground and a patient ground. The printed circuit board is disposed in mechanical cooperation with the electrosurgical g... | 04/10/2012 |
| 8152802 | Energy delivery algorithm filter pre-loading A method for controlling energy applied to tissue in two or more states as a function of a detected tissue property is provided. The method includes the steps of: determining an initial value of the detected tissue property, recursively processing the detected tissu... | 04/10/2012 |
| 8147485 | System and method for tissue sealing An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a proc... | 04/03/2012 |
| 8105323 | Method and system for controlling output of RF medical generator An electrosurgical generator is disclosed. The generator includes a microprocessor configured to generate a target impedance trajectory having at least one slope. The target impedance trajectory includes a plurality of target impedance values. The microprocessor is ... | 01/31/2012 |
| 8100897 | Laparoscopic electrosurgical electrical leakage detection An electrical leakage detection method and system for use with laparoscopic electrosurgical instruments are provided. The present disclosure provides for an electrosurgical unit for providing electrosurgical energy at an active output thereof and for controlling the... | 01/24/2012 |
| 8062290 | Electrosurgical system employing multiple electrodes A system for heat ablation of tissue in which energy is sequentially applied to at least two electrodes inserted into tissue, the system comprising a radiofrequency source configured to supply radiofrequency energy to two or more electrodes, at least one return elec... | 11/22/2011 |
| 8043286 | Method and apparatus for plasma-mediated thermo-electrical ablation Described herein are methods and apparatus for cutting a material including biological tissue. The apparatus has a cutting electrode with an elongate cutting portion. A voltage pulse waveform (typically comprising repeated bursts of minipulses) having a low or very ... | 10/25/2011 |
| 8034049 | System and method for measuring initial tissue impedance An electrosurgical system and method are disclosed. The system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The generator is further adapted to supply an electrical signal having at least one substantially constant value ... | 10/11/2011 |
| 8012149 | Methods and systems for determining physiologic characteristics for treatment of the esophagus A method and apparatus for treating abnormal mucosa in the esophagus is disclosed, such that the depth of the treated tissue is controlled. The depth of ablation is controlled by monitoring the tissue impedance and/or the tissue temperature. A desired ablation depth... | 09/06/2011 |
| 8007494 | Device and method to prevent surgical burns A surgical instrument and safety system comprises a safety shield having an inner surface and an outer surface, an active conductor having a first end adapted to connect with an electrode and a second end adapted to connect with an electrosurgical generator, the ele... | 08/30/2011 |
| 7985220 | Electrosurgical radio frequency energy transmission medium A system and method for transmitting electro surgical energy from a generator to an electrosurgical instrument are provided. The electrosurgical system includes a generator adapted to generate electrosurgical energy for treating tissue. The generator includes one or... | 07/26/2011 |
| 7976540 | Electrosurgical medical system and method A medical device system and method provide an RF electrosurgical generator coupled to an electrosurgical electrode via a patient box disposed in close proximity to the patient. An RF signal is delivered from the generator to the patient box where signal power is inc... | 07/12/2011 |
| 7972328 | System and method for tissue sealing An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a micr... | 07/05/2011 |
| 7959626 | Transmural ablation systems and methods A method of applying ablation energy to achieve transmurality including applying ablation energy at a starting power to a tissue site and monitoring the impedance of the tissue site. The power applied to the tissue site can be increased in response to detection of a... | 06/14/2011 |
| 7942872 | Blended monopolar and bipolar application of RF energy A system including at least two target electrodes and at least one return electrode, at least two RF power sources in electrical communication with the electrodes and operative to generate RF energy waveforms to the at least two target electrodes, one of the at leas... | 05/17/2011 |
| 7927328 | System and method for closed loop monitoring of monopolar electrosurgical apparatus An electrosurgical system is disclosed comprising a generator configured to electrosurgical coagulation waveforms. The generator includes a closed loop control system for controlling the electrosurgical coagulation waveforms. The closed loop control system includes ... | 04/19/2011 |
| 7922715 | Graphical user interface for monitoring and controlling use of medical devices A device for treating a tissue region is supplied with a separate usage key card. The usage key card comprises a storage medium, which is formatted to contain an identification code unique to the usage key card. The usage key card is adapted to be read by a remote r... | 04/12/2011 |
| 7922714 | Method and apparatus for selecting operating parameter values in electrophysiology procedures Methods of selecting operating parameter values for tissue ablation procedures are disclosed. Energy supply parameters may be selected based on inputs such as fluid flow rate, impedance, and the distance from an ablation electrode surface to a target tissue surface.... | 04/12/2011 |
| 7918850 | Lesion assessment by pacing Monitoring intracardiac ablation progress in near real time is accomplished by evaluating capture of a pacing signal while ablation energy is concurrently directed to a target site. Sufficiency of ablation is indicated by failure of signal capture at a maximum prede... | 04/05/2011 |
| 7909820 | Electrosurgical generator and bipolar electrosurgical device adaptors Adaptors for electrically coupling between an electrosurgical generator and a bipolar electrosurgical device are provided. In one preferred embodiment, the adaptor comprises a power input connector for coupling the adaptor with a monopolar mode power output connecto... | 03/22/2011 |
| 7901400 | Method and system for controlling output of RF medical generator A system and method are provided for controlling an electrosurgical generator generating electrosurgical energy which is delivered to a patient for performing an electrosurgical procedure for sealing tissue. The system includes a control module executable on a proce... | 03/08/2011 |
| 7887534 | Electrosurgical system An electrosurgical system comprising, among other things, a control console to which detachably connects one or more electrosurgical probes capable of coagulating and ablating tissue. The control console generates a selectively variable power signal having a duty cy... | 02/15/2011 |
| 7879029 | System and method for selectively energizing catheter electrodes The present invention is directed to a system, a method and a catheter that provide improved ablation capabilities and improved energy efficiency by selectively energizing catheter electrodes on the basis of impedance measurements. In particular, the invention is di... | 02/01/2011 |
| 7871410 | System for, and method of, heating a biological site in a patient's body A system (10) for heating a biological site in a patient's body includes a transformer (14) having a primary winding and a secondary winding. The secondary winding has a tap (24) to provide a ground reference and two sources of radio frequency (... | 01/18/2011 |
| 7862560 | Ablation apparatus having reduced nerve stimulation and related methods Apparatus and methods for reducing nerve stimulation in electrosurgical instruments utilizing electrically isolated pairs of electrodes are disclosed. At least two pairs of electrodes may be configured to create at least two opposing currents which effectively cance... | 01/04/2011 |
| 7854734 | Control system and process for application of energy to airway walls and other mediums The present invention includes a system for delivering energy to an airway wall of a lung comprising an energy delivering apparatus and a PID controller having one or more variable gain factors which are rest after energy deliver has begun. The energy delivering app... | 12/21/2010 |
| 7846156 | Electrosurgical generator apparatus An electrosurgical generator apparatus controls a variable output signal to electrodes. The generator apparatus operates in a cut mode, a coagulation mode or a stimulate mode. The generator apparatus comprises a DC power supply that provides regulated low voltage an... | 12/07/2010 |
| 7837679 | Control system and process for application of energy to airway walls and other mediums The present invention includes a system for delivering energy to an airway wall of a lung comprising an energy delivering apparatus and a PID controller having one or more variable gain factors which are rest after energy deliver has begun. The energy delivering app... | 11/23/2010 |
| RE41921 | Electrosurgery system and method An electrosurgical generator has output terminals for connection to active and return electrodes respectively of an electrosurgical instrument and, connected to the output terminals via at least one isolation capacitor, a radio frequency (r.f.) source which may be p... | 11/09/2010 |
| 7828794 | Handheld electrosurgical apparatus for controlling operating room equipment A system and apparatus for controlling operating room equipment during an electrosurgical procedure is disclosed. The system includes an electrosurgical generator, a controller in electrical communication with and configured to control the electrosurgical generator ... | 11/09/2010 |
| 7824400 | Circuit for controlling arc energy from an electrosurgical generator A circuit is disclosed which minimizes the amount of tissue vaporized during a first half (positive half cycle) of an electrosurgical current cycle and minimizes the amount of current applied to tissue during a second half (negative half cycle) of the electrosurgica... | 11/02/2010 |
| 7824399 | 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 depolarization signal in a local electrogram taken using electrodes located adjacent the tissue to b... | 11/02/2010 |
| 7819865 | Electrosurgical radio frequency energy transmission medium A system and method for transmitting electrosurgical energy from a generator to an electrosurgical instrument are provided. The electrosurgical system includes a generator adapted to generate electrosurgical energy for treating tissue. The generator includes one or ... | 10/26/2010 |
