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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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7588567 |
Method and system of stopping energy delivery of an ablation procedure with a computer based device for increasing safety of ablation procedures
An apparatus and method for stopping of ablation energy delivery to tissues during cardiac ablation procedures provides added safety. The apparatus uses control switch mechanism comprising relay...
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7566332 |
Methods and apparatus for dispersing current flow in electrosurgery
Methods and apparatus for delivering, monitoring, balancing, and/or dispersing high-frequency current flow in monopolar electrosurgery. The methods generally include positioning an active electrode...
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7494473 |
Electrical apparatus and system with improved tissue capture component
Electrosurgical tissue specimen recovery apparatus and system employing a multi-leaf capture component configured with pursing cables which are electrosurgically excited to define a cutting leading...
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7455670 |
System and method for the treatment of heart tissue
A device is disclosed for locating and treating an infarct scar in a heart. The device includes a catheter, a collapsible heater and energizing means connected to the collapsible heater for...
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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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7306592 |
System and method for regulating an amount of thermal energy generated by an electrosurgical tool
An bipolar electrosurgical tool ( 10 ) for cauterizing or ablating tissue. The tool has a nose cone ( 12 ) which serves as a handle. A conductive shaft ( 14 ) extends from the nose cone. A tip...
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7270660 |
Apparatus and method for sealing and cutting tissue
An axial elongate bipolar tissue sealer/cutter and method of use by a surgeon for electrosurgery on tissue. A chassis on a handle extends axially for axial movement. An effector on a distal end of...
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7255694 |
Variable output crest factor electrosurgical generator
An electrosurgical generator is disclosed capable of controlling the output crest factor, as well as the output power of the electrosurgical generator across a range of tissue impedances during...
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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...
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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...
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7203556 |
Device for monitoring medical equipment
A medical instrument, in particular a generator for high-frequency surgery, comprises setting elements for presetting functions, and also functional elements for performing functions according to...
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7041096 |
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...
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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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6942660 |
Electrosurgical generator and method with multiple semi-autonomously executable functions
Semi-autonomously executed routines accomplish the primary functions of electrosurgical energy delivery on a responsive basis for power control purposes and to adapt the delivered output waveform...
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6939346 |
Method and apparatus for controlling a temperature-controlled probe
A thermal energy controller system useful in medical procedures includes a controller coupled to a probe, and a thermal element to vary probe temperature. The controller includes memory storing 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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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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6730079 |
Method for calculating impedance and apparatus utilizing same
A method for calculating the impedance in a first circuit coupling a first radio frequency electrode to a radio frequency controller where the first electrode is disposed in tissue in the vicinity...
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6682527 |
Method and system for heating tissue with a bipolar instrument
Methods for heating tissue completely, thoroughly, and uniformly comprise delivering radio frequency energy through a bipolar surgical instrument having first and second jaws with first and second...
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6676660 |
Feedback light apparatus and method for use with an electrosurgical instrument
The present invention relates, in general, to electrosurgical instruments and, more particularly, to a feedback light used in cooperation with an electrosurgical instrument. The present invention...
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6663623 |
Electric surgical operation apparatus
The electric surgical operation apparatus of the present invention easily and securely shortens the rising time until incision and coagulation effects appear even if electrodes having different...
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6582427 |
Electrosurgery system
An electrosurgery system includes an electrosurgical generator ( 10 ) coupled to or part of an electrosurgical instrument, the generator being operable to generate electrosurgical power in low...
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6511476 |
Electrosurgical apparatus with stable coagulation
An electrosurgical apparatus supplies high-frequency power from a high-frequency power supply unit to an instrument placed in association with an organic tissue to dissect or coagulate the organic...
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6482204 |
Method and apparatus for controlled contraction of soft tissue
An apparatus and method are provided for control contraction of tissue that includes collagen fibers. The apparatus includes a handpiece, and an electrode with an electrode proximal end associated...
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6464696 |
Electrical surgical operating apparatus
An electric surgical operation apparatus comprises: an active electrode which performs medical treatment to an area to be treated by applying electric energy to the area; an electric power...
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6398779 |
Vessel sealing system
A method for electrosurgically sealing a tissue includes steps of: (A) applying an initial pulse of RF energy to the tissue, the pulse having characteristics selected so as not to appreciably heat...
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6391028 |
Probe with distally orientated concave curve for arthroscopic surgery
An arthroscopic probe with a distally orientated concave curve which constrains tissue is disclosed. It is particularly adapted to cutting ligaments and tendons. Also disclosed is a thermal energy...
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6352532 |
Active load control of ultrasonic surgical instruments
Ultrasonic instruments, and particularly solid core ultrasonic instruments, are advantageous because they may be used to cut and/or coagulate organic tissue using energy in the form of mechanical...
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6322558 |
Apparatus and method for predicting ablation depth
During an ablation procedure in a chamber of the heart RF energy is used to form a myocardial lesion for treatment of some arrhythmias such as sustained supraventricular tachycardia and accessory...
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6306131 |
Electric medical apparatus
An electric medical apparatus according to the present invention performs an incising treatment automatically after the coagulating treatment has been performed without a necessity for an operator...
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6302881 |
Method and apparatus for the removal of smoke during high-frequency surgery
During the treatment of biological tissues by high-frequency surgery, contaminants, in particular smoke, are produced. In the present invention a suction device for removal of the contaminants is...
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6296636 |
Power supply and methods for limiting power in electrosurgery
A high frequency power supply for applying electrical energy to a target site on or within a patient's body includes an electrical output driver, an output current sensor detecting the current...
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6293942 |
Electrosurgical generator method
An electrosurgical system including an electrode assembly having two electrodes for use immersed in an electrically conductive fluid has a generator with control circuitry for rapidly reducing the...
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6293941 |
Method and apparatus for impedance measurement in a multi-channel electro-surgical generator
This invention is an improved method and apparatus for tissue electrical impedance determination and electrical power control in a surgical device. In an embodiment of the invention an apparatus...
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6287303 |
Ablation instrument for intracardiac treatments
The invention relates to an ablation apparatus for intracardiac treatments which comprises a high-frequency source whose power output is controlled in a power-or temperature-controlled mode....
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6235020 |
Power supply and methods for fluid delivery in electrosurgery
A system for applying high frequency electrical energy to a body structure within a patient where the system detects the presence of conductive fluid. In one embodiment, the system includes a high...
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6210403 |
Automatic control for energy from an electrosurgical generator
An electrosurgical generator control responds to tissue impedance between active and return electrodes during desiccation. Active and return generator leads to supply energy and a user control sets...
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6203541 |
Automatic activation of electrosurgical generator bipolar output
An automatic circuit that controls a surgical instrument having a pair of bipolar electrodes. The circuit comprises means for measuring the current between the pair of electrodes, an impedance...
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6203516 |
Phacoemulsification device and method for using dual loop frequency and power control
The invention is an improved phacoemulsification probe drive circuit for supplying electrical power to an ultrasonic transducer. The drive circuit has a power control loop and a frequency control...
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6193713 |
Method for the operation of a high frequency ablation apparatus and apparatus for the high frequency tissue ablation
A method is described for the operation of a radiofrequency ablation instrument comprising a radiofrequency energy source having a plurality of regulatable outputs, with a plurality of electrodes...
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6179833 |
Apparatus for thermal ablation
A catheter for use in an electrophysiological procedure to ablate a site includes a metallic tip having a first work function and energized by a source of RF energy. The RF energy return path is...
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6142992 |
Power supply for limiting power in electrosurgery
A high frequency power supply for applying electrical energy to a target site on or within a patient's body includes an electrical output driver, an output current sensor detecting the current...
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6135999 |
Concave probe for arthroscopic surgery
Disclosed herein is a new arthroscopic probe with a concave distal tip which simultaneously constrains and cuts tissue. It is particularly adapted to cutting ligaments and tendons. Also disclosed...
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6132429 |
Radiofrequency medical instrument and methods for luminal welding
Methods and apparatus are provided for welding or sealing vessels or organs by collapsing and elongating a vessel with a jaw-like structure, and then applying an RF current between first and second...
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6126658 |
Radiofrequency medical instrument and methods for vessel welding
Methods and apparatus are provided for welding or sealing vessels or organs by collapsing a vessel with a jaw-like structure, applying an RF current between first and second bi-polar electrodes,...
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6117131 |
Multi-electrode probe for thermal ablation
A multi-electrode probe for use with a catheter in an electrophysiological procedure to map and to ablate any of several tissue sites without repositioning the probe includes at least a plurality...
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6113593 |
Ablation apparatus having temperature and force sensing capabilities
An ablation apparatus system for treating tissues in a patient, the ablation apparatus comprising temperature sensing means for measuring a temperature, wherein said temperature sensing means...
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6113592 |
Apparatus and method for controlling ablation depth
During an ablation procedure in a chamber of the heart RF energy is used to form a myocardial lesion for treatment of some arrhythmias such as sustained supraventricular tachycardia and accessory...
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