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6918907 |
Surface electrode multiple mode operation
A surface electrode for ablating tissue is provided. The surface electrode comprises a base, a plurality of tissue penetrating needle electrodes extending from the surface of the base an adjustable...
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6918906 |
Endoscopic ablation system with improved electrode geometry
An endoscopic ablation system is provided for use with a flexible endoscope for the ablative treatment of diseased tissue on the interior lining a body lumen. The endoscopic ablation system...
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6917834 |
Devices and methods for creating lesions in endocardial and surrounding tissue to isolate focal arrhythmia substrates
Devices and methods are provided for creating lesions in endocardial tissues surrounding a vessel opening to thereby isolate focal arrhythmia substrates, including an invasive catheter assembly...
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6916318 |
Variable length electrodes for delivery of irrigated ablation
A device for ablating tissue is provided. The device comprises a conductive element with a channel for irrigating fluid formed therein, which is in contact with a non-conductive microporous...
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6916317 |
Tricuspid annular grasp catheter
A method of treating cardiac arrhythmia, including guiding a distal end portion of a catheter, the distal end portion having a distal tip and accommodating an elongated configuration of ablation...
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6916314 |
Medical instrument with removable tool
A medical instrument has a shaft and a tool which is mounted on a distal end of the shaft in such a way as to be removable therefrom. The shaft has an inner shaft and a tubular shaft which...
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6915806 |
Method for harvesting graft vessel
The present invention provides systems, apparatus and methods for selectively applying electrical energy to body tissue in order to incise, dissect, harvest or transect tissues or an organ of a...
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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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6911028 |
Medical instrument working end and method for endoluminal treatments
A medical instrument that utilizes electrical energy delivery between first and second opposing polarity electrodes in an interior bore of a working end to cause vaporization of an inflowing fluid...
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6911027 |
Device for the ablation of tissue
A device for the ablation of tissue for use with the fingers of a human hand and a radio frequency power supply and controller providing a source of radio frequency energy and controls for...
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6911019 |
Helical needle apparatus for creating a virtual electrode used for the ablation of tissue
A surgical apparatus for delivering a conductive fluid to a target site for subsequent formation of a virtual electrode to ablate bodily tissue at the target site by applying a current to the...
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6908464 |
Loop structures for supporting diagnostic and therapeutic elements in contact with body tissue and expandable push devices for use with same
An apparatus that facilitates the creation of circumferential lesions in body tissue. The apparatus includes a first probe having a loop structure that supports electrodes or other operative...
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6907884 |
Method of straddling an intraosseous nerve
This invention relates to a method of straddling an intraosseous nerve with an energy transmitting device to improve the therapeutic treatment of the nerve.
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6905496 |
RF electrosurgery cryogenic system
An electrosurgical system that is capable of performing an electrosurgical procedure while cooling the surgical site before, during or after the surgical procedure. To a handpiece or to an...
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6905495 |
Irrigation probe for ablation during open heart surgery
An irrigation probe useful for ablation during open heart surgery is provided. The irrigation probe comprises a generally rigid probe body and a handle mounted to the proximal end of the probe...
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6904303 |
Apparatus for mapping and coagulating soft tissue in or around body orifices
A probe that may be used to create circumferential lesions in body tissue and, in some implementations, may also be used to perform mapping functions. The probe includes a collapsible/expandable...
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6902564 |
Methods and devices for electrosurgery
Method and devices for electrosurgery by means of oxy-hydro combustion. Deleterious effects to tissue are minimized by means of control of acid-base shift reactions, which reactions can further be...
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6899711 |
Ablation catheter and method for isolating a pulmonary vein
A catheter assembly and method for treatment of cardiac arrhythmia, for example, atrial fibrillation, by electrically isolating a vessel, such as a pulmonary vein, from a chamber, such as the left...
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6899710 |
Combination ablation and visualization apparatus for ablating cardiac tissue
Combination ablation and visualization apparatus for ablating cardiac tissue which comprises an elongated body including a first end and a second end opposite to the first end. First and second...
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6896674 |
Electrosurgical apparatus having digestion electrode and methods related thereto
Methods and apparatus for resecting and ablating tissue at a target site of a patient, the apparatus including a probe having an elongate shaft. The shaft includes a shaft distal end portion and a...
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6896673 |
Method for transmural ablation
A method 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...
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6896672 |
Methods for electrosurgical incisions on external skin surfaces
Systems and methods are provided for removing fatty tissue underlying a patient's epidermis (e.g., blepharoplasty, brow lifts, eyelid shortening procedures, and the like). These methods include...
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6893442 |
Vacuum coagulation probe for atrial fibrillation treatment
An embodiment of the invention includes a surgical device for coagulating soft tissue such as atrial tissue in the treatment of atrial fibrillation, atrial flutter, and atrial tachycardia. The...
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6893439 |
Structures and methods for deploying electrode elements
An electrode support structure comprises a guide body having at its distal end a flexible spline leg. The spline leg is flexed to define an arcuate shape to facilitate intimate contact against...
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6893438 |
Ablation catheter, system, and method of use thereof
A cardiac ablation apparatus for producing a circumferential ablation that electrically isolates a heart chamber wall portion from vessel such as a pulmonary vein extending into said wall portion...
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6893437 |
Microporous electrode structure and method of making the same
An electrode assembly adapted to transmit electrical energy for ablating body tissue includes an expandable and collapsible non-compliant body made of a durable material and defining an interior...
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6893436 |
Ablation instrument having a flexible distal portion
An ablation instrument having a flexible portion at or near the distal portion of the instrument, is provided. The instrument includes an elongated tubular member having a steerable distal end...
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6893435 |
Electrosurgical system
An electrosurgical system has an electrosurgical generator and a bipolar electrosurgical instrument, the generator being arranged to perform a treatment cycle in which radio frequency energy is...
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6893434 |
Ultrasonic soft tissue cutting and coagulation systems including a retractable grasper
The present invention features an ultrasonic surgical system including an ultrasonically vibrating blade, and retractable grasper. The grasper includes a grasping jaw or clamp that is movable, in a...
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6890332 |
Electrical discharge devices and techniques for medical procedures
A medical instrument coupled to first and second energy means and a computer controller for the controlled volumetric removal of thin tissue layers. The system provides a source for introducing 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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6889694 |
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...
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6889089 |
Apparatus and method for treating tumors near the surface of an organ
A system for treating a target region in tissue beneath a tissue surface comprises a probe for deploying an electrode array within the tissue and a surface electrode for engaging the tissue surface...
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6887239 |
Preparation for transmission and reception of electrical signals
The invention provides a convenient and non-invasive means to prepare cells, tissues, and organs for electrical transmission and reception. In an embodiment of the invention, a control method...
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6887238 |
Suction stabilized epicardial ablation devices
A suction assisted ablation device having a support surface, suction elements disposed adjacent the support surface, at least one electrode and at least one suction conduit is provided. The device...
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6887237 |
Method for treating tissue with a wet electrode and apparatus for using same
A method for treating tissue of a mammalian body in which the conductivity of the tissue is characterized. The amount of a conductive liquid to supply to the tissue is determined as a function of...
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6887236 |
Multiple-electrode catheter assembly and method of operating such a catheter assembly
A multiple-electrode catheter assembly includes a hollow catheter having an internal elongated channel and a flexible distal portion. A number of electrodes are spaced along the flexible distal...
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6887235 |
Variable stiffness heating catheter
The variable stiffness heating catheter includes a heating catheter shaft including at least one electrically conductive member, a reinforcing tube with apertures formed around the surface of the...
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6881213 |
Device and method to expand treatment array
A medical device is provided and includes an elongated tube that has a longitudinal axis and an expandable member attached to the tube. The expandable member is expandable from a collapsed...
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6878147 |
High-strength microwave antenna assemblies
Various high-strength microwave antenna assemblies are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. The...
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6875193 |
Rapid exchange fluid jet thrombectomy device and method
A rapid exchange fluid jet thrombectomy device for removal of thrombus or unwanted tissue debris from a vein, artery or the like. The device includes a semi-rigid intermediate tube between a...
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6872207 |
Resectscope apparatus
According to a resectscope apparatus of the present invention, in order to control the output properly by discriminating electric characteristics of perfusion fluids, under control of the control...
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6872206 |
Methods for treating the cardia of the stomach
Methods treat a tissue region. In one arrangement, the methods deploy an electrode on a support structure in a tissue region at or near the cardia of the stomach. In one embodiment, the support...
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6872205 |
Circumferential ablation device assembly
This invention is a circumferential ablation device assembly which is adapted to forming a circumferential conduction block in a pulmonary vein. The assembly includes a circumferential ablation...
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6871085 |
Cardiac vein lead and guide catheter
A guide catheter and medical lead are provided wherein the lead may be used as a pull wire to steer the guide catheter. The guide catheter is provided with a flexible distal segment and the lead is...
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6869431 |
Medical device with sensor cooperating with expandable member
Disclosed is a method for attaching a sensor to an inflatable balloon. The method involves bonding the sensor to the balloon with an adhesive while the balloon is in an expanded state and then...
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6869430 |
Tissue biopsy and treatment apparatus and method
An embodiment of the invention provides a tissue biopsy and treatment apparatus that comprises an elongated delivery device that is positionable in tissue and includes a lumen. A sensor array...
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6866663 |
Method for treating a sphincter
A method for treating a sphincter provides a polymer material having a liquid state. The method also provides a catheter having a distal end, a tissue piercing device carried by the distal end, and...
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6866662 |
Ablation catheter having stabilizing array
A circumferential ablation catheter is provided, which is particularly useful for treating atrial arrhythmia by ablating a substantial portion of a circumferential region of tissue in a tubular...
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6858025 |
Cryo-surgical apparatus and method of use
Cryosurgical apparatus includes an elongate cryoprobe having a cooling portion and an electrically conductive first portion in the region of the cooling portion. A removable sheath having an...
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