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| Number | Title | Issue Date |
| 7850684 | Surgical instrument A device for morcellating tissue within a body cavity of a patient comprises a stationary tube (8) having a distal end portion (12), and a bipolar electrosurgical electrode assembly (13) located at the distal end of the tube. The electrosurgical... | 12/14/2010 |
| 7367975 | Energy based devices and methods for treatment of anatomic tissue defects Methods for treating anatomic tissue defects such as patent foramen ovale (PFO) generally involve positioning a distal end of an elongate catheter device at the site of the anatomic defect, exposing an expandable housing and energy transmission member out of the dis... | 05/06/2008 |
| 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 |
| 7357800 | Power supply and control apparatus and electrophysiology systems including the same A power supply and control apparatus operable in a bipolar mode, a unipolar mode, and a combined bipolar/unipolar mode. ... | 04/15/2008 |
| 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 |
| 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 |
| 7316682 | Electrosurgical device to generate a plasma stream An electrosurgical device to generate a plasma stream for performing electrosurgery on a surgical site on a patient comprising an electrosurgical generator coupled to a electrical power source to supply power to the electrosurgical device and a plasma generator incl... | 01/08/2008 |
| 7311705 | Catheter apparatus for treatment of heart arrhythmia A catheter apparatus is provided for use in the treatment of heart arrhythmia having a catheter shaft, a mapping and ablation catheter disposed within the shaft, and a control mechanism coupled to both the shaft and catheter. The catheter shaft includes a main body ... | 12/25/2007 |
| 7300437 | Electronic scalpel to cut organic tissues The electrode of a manipulator cuts tissue. The scalpel has rectifying circuit for supplying a rectified voltage to a radio frequency circuit which produces an output current signal at a substantially constant frequency to the electrode. The radio frequency circuit ... | 11/27/2007 |
| 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 |
| 7288090 | Internal indifferent electrode device for use with lesion creation apparatus and method of forming lesions using the same An internal indifferent electrode device including a flexible shaft, an energy transmission device adapted to be inserted into the body supported on the shaft, and a connector adapted to mate with the power return connector of a power supply apparatus. ... | 10/30/2007 |
| 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 |
| 7276060 | Surgical handpiece tip A surgical handpiece having a tip with at least two coaxially spaced electrically conductive tubes. The tubes are separated by an electrical insulator. The interior of the inner tube is used for aspiration of liquefied tissue. The outer tube is surrounded by a soft ... | 10/02/2007 |
| 7273483 | Apparatus and method for alerting generator functions in an ultrasonic surgical system The present invention provides a system for surgery which includes an ultrasonic hand piece having a end-effector, a console having a digital signal processor (DSP) for controlling the hand piece, and a memory disposed in the end-effector. The generator console send... | 09/25/2007 |
| 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 |
| 7270646 | Ultrasonic operation apparatus for performing follow-up control of resonance frequency drive of ultrasonic oscillator by digital PLL system using DDS (direct digital synthesizer) An ultrasonic driving apparatus consists mainly of a digital oscillatory circuit, an amplifier, a detection circuit, a phase difference detection circuit, a register, a data transfer circuit, and a switching circuit. The digital oscillatory circuit is used to drive ... | 09/18/2007 |
| 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 |
| 7244262 | Method for detecting transverse vibrations in an ultrasonic hand piece A method for detecting transverse mode vibrations in an ultrasonic hand piece/blade is achieved by monitoring the power delivered to the hand piece/blade to determine whether it increases as expected when power levels applied to the hand piece/blade are changed. Whi... | 07/17/2007 |
| 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 |
| 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 |
| 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 |
| 7235070 | Ablation fluid manifold for ablation catheter An ablation catheter employing one or more manifold arrangements to convey a conductive fluid medium to a target tissue. The manifold includes at least one inlet port in fluid communication with a fluid supply lumen running along at least a portion of the catheter. ... | 06/26/2007 |
| 7232438 | Ablation device with clear probe A medical device for performing a therapeutic procedure on a patient. The medical device includes an elongate probe extending to an applicator end and a visually transparent tip positioned adjacent the applicator end. The device also includes an electrode positioned... | 06/19/2007 |
| 7229455 | Ultrasonic calculus treatment apparatus An ultrasonic calculus treatment apparatus includes a longitudinal-vibration piezoelectric oscillator for vibrating in the axial direction of an ultrasonic transmitting member and a torsional-vibration piezoelectric oscillator for vibrating about the axial direction... | 06/12/2007 |
| 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 |
| 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 |
| 7207987 | Catheter exhibiting improved electrical properties as well as a device and processing method for improving electrical properties of catheters In order in the case of a catheter for the ablation of biological, in particular of animal or human, tissue, preferably for the ablation of human myocardial tissue, having at least one ablation or mapping electrode to permit the recording of ECG signals during cathe... | 04/24/2007 |
| 7189231 | Electrosurgical methods and apparatus for making precise incisions in body vessels Methods and apparatus employed in surgery involving making precise incisions in vessels of the body, particularly cardiac blood vessels in coronary revascularization procedures conducted on the stopped or beating heart are disclosed. Such incisions are created by ap... | 03/13/2007 |
| 7177680 | Field stimulation about a discontinuity of the myocardium to capture the heart at reduced pacing thresholds Improved pacing thresholds for capturing the heart are achieved by forming a discontinuity in the cardiac tissue of the heart chamber, disposing a pacing electrode at a distance less than a space constant of the cardiac tissue from the discontinuity in the cardiac t... | 02/13/2007 |
| 7175618 | High frequency power source A high frequency electrosurgical power generator configured to produce electrical power at a frequency of about 1 to about 14 MHz and preferably having an essentially sinusoidal waveform with a voltage level up to 1,000 Vrms, and a current level up to 5 Amps. The ou... | 02/13/2007 |
| 7153315 | Catheter balloon with ultrasonic microscalpel blades The present invention provides a catheter balloon, and balloon catheter incorporating the catheter balloon, useful in medical dilation procedures. The catheter balloon includes at least one microscalpel operatively disposed on an outer surface thereof. The microscal... | 12/26/2006 |
| 7142928 | Field stimulation about a discontinuity of the myocardium to capture the heart at reduced pacing thresholds Improved pacing thresholds for capturing the heart are achieved by forming a discontinuity in the cardiac tissue of the heart chamber, disposing a pacing electrode at a distance exceeding a space constant of the cardiac tissue from the discontinuity in the cardiac t... | 11/28/2006 |
| 7131951 | Biopsy needle A biopsy needle assembly may include a sample needle, an actuator and a cutter. A sample needle may include a sample opening. A tissue sample may be positioned in the sample opening when the sample needle is inserted into tissue of a patient. The actuator may be act... | 11/07/2006 |
| 7133717 | Tissue electroperforation for enhanced drug delivery and diagnostic sampling The present invention relates to a method and a device for transporting a molecule through a mammalian barrier membrane of at least one layer of cells comprising the steps of: ablating said membrane with an electric current from an array of treatment electrodes; and... | 11/07/2006 |
| 7131969 | Systems and methods for electrosurgical treatment of obstructive sleep disorders The present invention provides systems and methods for selectively applying electrical energy to a target location within the head and neck of a patient's body, particularly including tissue in the ear, nose and throat. The present invention applies high frequency (... | 11/07/2006 |
| 7115121 | Electrosurgical apparatus An electrosurgical apparatus comprises an HF generator and an HF instrument, the HF instrument having a first switch and a second switch, the first switch being assigned a first operating state, and the second switch being assigned a second operating state of the HF... | 10/03/2006 |
| 7113831 | Transmural ablation device 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 ... | 09/26/2006 |
| 7113821 | Tissue electroperforation for enhanced drug delivery The present invention relates to a method and a device for transporting a molecule through a mammalian barrier membrane of at least one layer of cells comprising the steps of: ablating the membrane with an electric current from a treatment electrode; and utilizing a... | 09/26/2006 |
