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| Number | Title | Issue Date |
| 8187270 | 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 ... | 05/29/2012 |
| 8162937 | High volume fluid seal for electrosurgical handpiece A fluid resistant seal connector for an electrosurgical handpiece includes a housing adapted to be supported within an electrosurgical handpiece. The housing includes opposing half sections each having an inner peripheral surface. The fluid resistant seal further in... | 04/24/2012 |
| 8142429 | High-frequency treatment based upon a calculated impedance A high-frequency treatment apparatus includes a treatment high-frequency wave output unit configured to output a treatment high-frequency wave to be applied to a treatment target living tissue, a detection unit for detecting an impedance of the treatment target livi... | 03/27/2012 |
| 8016824 | Electrosurgical pencil with drag sensing capability An electrosurgical pencil configured and adapted to support an electrocautery blade. A strain gauge is affixed to the proximal end of the electrocautery blade and measures the displacement of the blade as a result of resistance and drag acting on the blade. The elec... | 09/13/2011 |
| 7993338 | Switching methods and apparatus Embodiments of the invention controlling power distribution in an ablation control apparatus or the like. In one embodiment, a power switching apparatus comprises a first switch assembly having an input end to receive a power input signal, the first switch assembly ... | 08/09/2011 |
| 7947039 | 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 multilumen tube extending proximally from the housing and having an irrigation tube f... | 05/24/2011 |
| 7935111 | Electrosurgery pencil An electrosurgery pencil having a bent or angled portion which enables a physician to easily perform surgical procedures without his or her hand obstructing the view of the surgical site. ... | 05/03/2011 |
| 7879032 | Disposable electrosurgical handpiece Incorporating into an electrosurgical handpiece a device configured to disable the handpiece when a built-in usage time period expires. Preferably, the device comprises a timer in the form of an activating battery with a known discharge rate such that the battery vo... | 02/01/2011 |
| 7837685 | Switch mechanisms for safe activation of energy on an electrosurgical instrument Various safe switching mechanisms are provided for use with electrosurgical instruments which prevent arcing between the high-energy contacts as the high-energy source is activated. The switching mechanisms generally include a pair of high-energy contacts and a pair... | 11/23/2010 |
| 7789879 | System for plasma-mediated thermo-electrical surgery 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... | 09/07/2010 |
| 7789878 | In-line vessel sealer and divider An endoscopic forceps includes a housing having a shaft attached thereto, the shaft including a pair of jaw members disposed at a distal end thereof. The forceps also includes a drive assembly disposed in the housing which moves the jaw members relative to one anoth... | 09/07/2010 |
| 7731713 | Versatile irrigation system dissector A versatile irrigation system dissector for laparoscopic surgery comprises an elongated lumen having an elongated slim tip electrode slidably mounted therein and having a cutting tip extendable therefrom at one end. The lumen is connected at the other end to a manif... | 06/08/2010 |
| 7708734 | Method for dynamically adjusting operation of a surgical handpiece Method and system for adjusting the amount of energy delivered to a handpiece of a surgical system based on feedback. A table is generated that correlates differences between voltages and rates of change of a voltage of the output of a charging element of the surgic... | 05/04/2010 |
| 7674261 | Electrosurgical instrument with enhanced capability An electrosurgical instrument for use by a surgeon that provides additional features and benefits compared with known designs. The operating mode as well as other operating parameters, especially power level, can be preset by the surgeon before commencing the proced... | 03/09/2010 |
| 7621909 | Electrosurgical pencil with drag sensing capability An electrosurgical pencil configured and adapted to support an electrocautery blade. A strain gauge is affixed to the proximal end of the electrocautery blade and measures the displacement of the blade as a result of resistance and drag acting on the blade. The elec... | 11/24/2009 |
| 7520877 | Radiofrequency ablation system using multiple prong probes Efficient ablation with multiple prong electrodes is obtained by electrically isolating the prongs from each other and rapidly switching electric power between the prongs, between a prong and a ground pad, or both. In this way, power distribution to a tumor can be c... | 04/21/2009 |
| 7445620 | Apparatus and method for protecting nontarget tissue of a patient during electrocautery surgery An apparatus for protecting a nontarget body tissue of a patient during electrocautery surgery, an electrocautery probe being adapted to provide an electrical field to electrocauterize a target body tissue of the patient, includes a stent. The stent is adapted to de... | 11/04/2008 |
| RE40559 | Radiating device for hyperthermia A flexible three-paths catheter provided with a balloon carries a sealingly sheathed radiofrequency radiating antenna, together with the shielded power supply cable and with some thermocouples, within a plastic lining surrounded by a flow of liquid; a second path ca... | 10/28/2008 |
| 7425212 | Devices for modification of airways by transfer of energy This relates to a device for treating lung disease, and more particularly, relates to a device for exchanging energy with airway tissue such as that found in the airways of human lungs. The exchange of energy with this airway tissue in the airways reduces the abilit... | 09/16/2008 |
| 7419487 | Apparatus for detecting and treating tumors using localized impedance measurement An apparatus for treating tumors comprises an elongated delivery device that includes a lumen and is maneuverable in tissue. An impedance sensor array is deployable from the elongated device and configured to be coupled to at least one of an energy source or a switc... | 09/02/2008 |
| 7416550 | Method and apparatus for the control and monitoring of shape change in tissue A method of electroforming tissue comprises creating stress in the tissue; and causing a direct current to flow in the tissue to change the stress, strain, or intrinsic mechanical properties including shape of the tissue. Force is mechanically applied to the tissue ... | 08/26/2008 |
| 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 |
| RE40388 | Electrosurgical generator with adaptive power control An electrosurgical generator has an output power control system that causes the impedance of tissue to rise and fall in a cyclic pattern until the tissue is desiccated. The advantage of the power control system is that thermal spread and charring are reduced. In add... | 06/17/2008 |
| 7387630 | Catheter with ablation needle and mapping assembly The invention is directed to a catheter that creates enhanced lesions using a needle electrode and can simultaneously map electrical activity at a plurality of points using an enhanced mapping assembly. The catheter comprises an elongated catheter body having at lea... | 06/17/2008 |
| 7377918 | Electrosurgical method and apparatus Apparatus for forming a lesion in body tissue includes a probe having an active region with an electrode for contacting tissue to be treated, and an inactive region including an insulative sleeve around a portion of the electrode. The temperature of the inactive reg... | 05/27/2008 |
| 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 |
| 7364579 | Fluid-assisted electrosurgical device An electrocautery device is disclosed. In accordance with one aspect of the invention, the electrocautery electrode/tip is provided with a hollow, conductive tube terminating at its distal end in a ball point type tip. Fluid, preferably conductive fluid, is applied ... | 04/29/2008 |
| 7361830 | Polymer encapsulated micro-thermocouple A thermocouple produced by removing insulation from a distal end of each of at least first and second thermocouple conductors, forming a thermocouple junction at the distal ends of the at least first and second thermocouple conductors, placing the thermocouple junct... | 04/22/2008 |
| 7363071 | Computer guided ablation of tissue using integrated ablative/temperature sensing devices The system for providing computer guided ablation of tissue of a patient includes an imaging device, an ablative surgical computer system, and a set of surgical devices. The imaging device receives imaging data from a treatment region of a patient, processes the ima... | 04/22/2008 |
| 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 |
| 7357798 | Systems and methods for electrosurgical prevention of disc herniations The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's body, particularly including tissue in the spine. The present invention applies high frequency (RF) electrical energy to one or more... | 04/15/2008 |
| 7353068 | Control device for a medical system and control method for medical system A control device for a medical system includes: an instructing unit, which can be instructed by an operator, for outputting an instructing signal according to the instruction by the operator; a control signal generating unit for receiving an instructing signal, and ... | 04/01/2008 |
| 7347858 | Method and system for treatment of atrial tachyarrhythmias A method and system for ablating tissue to provide a desired set of lesions. The system includes an ablation apparatus having an elongated shapeable section carrying a mechanism such as an electrode for applying ablation energy along the shapeable section. The shape... | 03/25/2008 |
| 7344533 | Impedance controlled tissue ablation apparatus and method A method and apparatus for carrying our thermal ablation of target tissue is disclosed. The apparatus includes an RF ablation device having a multi-electrode electrode assembly designed to be deployed in target tissue, defining a selected-volume tissue region to be ... | 03/18/2008 |
| 7341586 | Thermal coagulation of tissue during tissue resection A coagulation system is provided for use in biological tissue. The coagulation system includes a handle, a radiofrequency (RF) generator, and an electrode array. The electrode array includes two or more pair of bipolar electrodes slideably coupled in channels of the... | 03/11/2008 |
| 7338486 | Methods and devices for ablation An ablating device has a cover which holds an interface material such as a gel. The cover contains the interface material during initial placement of the device. The ablating device may also have a removable tip or a membrane filled with fluid. In still another aspe... | 03/04/2008 |
| 7331957 | Electrosurgical apparatus and methods for laparoscopy Electrosurgical methods and apparatus for treating tissue at a target site of a patient. An electrosurgical instrument includes a shaft, having a shaft distal end and a shaft proximal end, and an electrode assembly disposed at the shaft distal end. The electrode ass... | 02/19/2008 |
| 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 |
| 7318822 | Hybrid cannula/electrode medical device and method A cannula having a hollow metal tube for injection of liquids such as an anesthetic, or RF energy, into a patient. A thermocouple or other temperature sensor is located at the bare tip of the cannula, and a wire for the temperature sensor extends along the length of... | 01/15/2008 |
