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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...
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7601149 |
Apparatus for switching nominal and attenuated power between ablation probes
A tissue ablation system comprises an ablation source, such as an RF ablation source, configured for generating a common power signal, and a power multiplexor configured for splitting the power...
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7582084 |
Systems and methods for controlling power in an electrosurgical probe
Systems and methods for controlling the power supplied to an electrosurgical probe. The systems and methods may be used to monitor electrode-tissue contact, adjust power in response to a loss of...
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7578816 |
Method and system of increasing safety of cardiac ablation procedures
Method and system of increasing safety of ablation of cardiac arrythmias, especially AVNRT and antero-septal accessory pathway ablations. A computer based system acquires, conditions, and analyzes...
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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...
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7513896 |
Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
An electrosurgical generator is disclosed, which includes an RF output stage connected to a DC power supply and first and second connections. The first connection includes a first switching...
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7491199 |
Electrosurgical generator and system
An electrosurgical system includes a generator for generating radio frequency power, and an electrosurgical instrument including at least three electrodes and. The generator includes a radio...
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7479140 |
Intelligent selection system for electrosurgical instrument
An intelligent selection system for operating an electrosurgical instrument for use by a surgeon that depends primarily on the surgical procedure to be employed. The operating mode as well as other...
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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...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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7285117 |
Medical device control systems
A medical device for use by an operator to perform a medical procedure in a body includes a handle to be held by the operator, a shaft attached to the handle and an actuating assembly to control...
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7282049 |
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...
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7166103 |
High efficiency electrosurgical ablator with electrode subjected to oscillatory or other repetitive motion
A high efficiency electrosurgical ablator which is subjected to a combined oscillatory and mechanical debridement motion during resection of tissue is disclosed. The electrosurgical ablator is...
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7163536 |
Determining connections of multiple energy sources and energy delivery devices
A method and system are disclosed for the mapping of energy delivery devices to energy sources. Energy capable of affecting a measurable property of the system is delivered through the energy...
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7160296 |
Tissue ablation apparatus and method
A tissue-ablation method and apparatus are disclosed. The apparatus includes a plurality of RF ablation electrodes, and a plurality of sensor elements, each movable from retracted to deployed...
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7151964 |
Device and method for multi-phase radio-frequency ablation
Multi-phase RF ablation employing a two-dimensional or three-dimensional electrode array produces a multitude of currents paths on the surface of the ablation zone. This results in a uniform lesion...
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7137980 |
Method and system for controlling output of RF medical generator
A closed-loop control system has a user interface for allowing a user to select at least one pre-surgical parameter. The system also has a sensor module for continually sensing at least one of...
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7131445 |
Electrosurgical method and apparatus
An electrosurgical method and apparatus comprises a probe, at least one temperature sensor, and a controller for generating and controlling electromagnetic energy supplied to the probe. The...
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7128741 |
Methods, systems, and devices for performing electrosurgical procedures
Systems, methods, and instruments associated with controlling the operating modes of an electrosurgical instrument using control signals delivered in a wireless manner from the electrosurgical...
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7070597 |
Electrosurgical working end for controlled energy delivery
An electrosurgical working end for automatic modulation of active Rf density in a targeted tissue volume. The working end of the probe of the present invention defines a tissue-engagement surface...
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7048734 |
Systems and methods for electronically altering the energy emitting characteristics of an electrode array to create different lesion patterns in body tissue
Systems and methods employ a guide element that carries a region of energy emitting material. The systems and methods electronically couple the region to a source of energy that, when emitted by...
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7044945 |
Prevention of regression in thermal ciliary muscle tendinoplasty
Methods and apparatus are provided that prevent or inhibit functional regression caused by the stromal remodeling resulting from epithelial or fibroblastic apoptosis or necrosis in patients who...
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6977495 |
Detection circuitry for surgical handpiece system
Various circuit configurations for use in switch assembly used in a surgical hand piece system are provided. The circuit configuration provide a number of functions such as permitting the presence...
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6964661 |
Endovenous ablation mechanism with feedback control
A vessel occlusion system includes one or more ablation elements that, when activated, is configured for at least partially closing a vessel segment of a patient. The vessel occlusion system...
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6958062 |
Multiple antenna ablation apparatus and method
A multiple antenna ablation apparatus includes an electromagnetic energy source, a trocar including a distal end, and a hollow lumen extending along a longitudinal axis of the trocar, and a...
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6955674 |
Medical ablation catheter control
The control for an ablation catheter provides increased ablation catheter operation feedback and increased options for programmable control of the ablation catheter for clinicians. The control for...
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6950025 |
Medical surgery safety device
A medical surgery safety device used in connection with surgical insulting instruments and other operation room medical equipment. The safety device includes one or more remote unit attached to the...
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6929643 |
Resectoscope apparatus and electric operation apparatus
A treatment electrode of a resectoscope apparatus is substantially semicircular-shaped. A length a of a first segment and a length b of a second segment satisfy a relationship of (a>2·b). The...
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6913605 |
Microfluidic devices and methods for producing pulsed microfluidic jets in a liquid environment
Microfluidic devices and methods for their use in producing pulsed microfluidic jets in a fluid environment are provided. The subject microfluidic devices are characterized by the presence of a...
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6890331 |
Electrosurgical apparatus
An electrosurgical apparatus comprises a high frequency generator ( 1 ) with an associated power control system, a handpiece ( 2 ) with means for removably mounting an electrode ( 5 ) therein, and...
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6830569 |
Electrosurgical generator and method for detecting output power delivery malfunction
Output power delivery from an electrosurgical generator is evaluated to avoid malfunctions and risk conditions. Output power is delivered in a selected delivery path and the flow of output power is...
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6808525 |
Bipolar electrosurgical hook probe for cutting and coagulating tissue
A bipolar electrosurgical hook probe includes an end effector that includes first and second electrodes placed in parallel, closely-spaced relationship, each being of a relatively large surface...
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6790206 |
Compensation for power variation along patient cables
A method and system for delivering power over a patient cable to a therapeutic device, in which a variable that depends on the delivered power is sensed or measured near a distal end of the patient...
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6780182 |
Catheter placement detection system and operator interface
A system for facilitating the placement of a catheter within the human body, in a lumen or vessel such as the fallopian tubes, and controlling the catheter after placement. The system coordinates...
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6740082 |
Surgical instruments for treating gastro-esophageal reflux
Instruments for thermally-mediated treatment of a patient's lower esophageal sphincter (LES) to induce an injury healing response to thereby populate the extracellular compartment of walls of the...
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6733516 |
Method and apparatus for limiting revascularization to viable tissue
A method and apparatus for limiting the application of ablation energy to viable myocardial tissue. An ablation energy generator produces a test signal that is applied to the heart muscle. The...
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6696844 |
Apparatus and method for real time determination of materials' electrical properties
Apparatus for ablating organic material, such as tissue, during an EP procedure generates a monitor signal to provide unambiguous indicia of real time characteristics of the ablation site prior to,...
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6692492 |
Dielectric-coated ablation electrode having a non-coated window with thermal sensors
A catheter for applying ablation energy to biological tissue having biological fluid flowing thereby includes a shaft having a distal-end region defining a tissue-contacting surface and a...
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