SYSTEM AND METHODS OF CONTROLLING TEMPERATURE RELATED TO ELECTROSURGICAL PROCEDURES
First Claim
1. A method of limiting a temperature of a fluid transport element associated with an electrosurgical wand comprising:
- supplying a high frequency energy to an active electrode of an electrosurgical wand;
drawing an electrically conductive fluid from the vicinity of the active electrode;
sensing a temperature signal indicative of a temperature of the electrically conductive fluid drawn from the vicinity of the active electrode; and
cycling the high frequency energy supplied upon the temperature of the electrically conductive fluid drawn from the vicinity of the active electrode exceeding a first threshold temperature.
2 Assignments
0 Petitions
Accused Products
Abstract
Electrosurgical procedures. At least some of the example methods for detecting that an electrosurgical wand is effected by a blockage, including supplying a high frequency energy to an active electrode of an electrosurgical wand; drawing an electrically conductive fluid from the vicinity of the active electrode; sensing a temperature signal indicative of a temperature of the electrically conductive fluid drawn from the vicinity of the active electrode; and cycling the high frequency energy supplied upon the temperature of the electrically conductive fluid drawn from the vicinity of the active electrode exceeding a first threshold temperature.
17 Citations
22 Claims
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1. A method of limiting a temperature of a fluid transport element associated with an electrosurgical wand comprising:
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supplying a high frequency energy to an active electrode of an electrosurgical wand; drawing an electrically conductive fluid from the vicinity of the active electrode; sensing a temperature signal indicative of a temperature of the electrically conductive fluid drawn from the vicinity of the active electrode; and cycling the high frequency energy supplied upon the temperature of the electrically conductive fluid drawn from the vicinity of the active electrode exceeding a first threshold temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of limiting a temperature of an electrically conductive fluid drawn through a fluid transport element of an electrosurgical wand comprising:
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drawing the electrically conductive fluid at a first fluid flow rate though the fluid transport element; delivering a high frequency energy to an active electrode of the electrosurgical wand, sufficient to treat a target tissue; sensing a temperature associated with the fluid transport element; pulsing the step of drawing the electrically conductive fluid, between the first fluid flow rate and a cooling flow rate upon sensing that the temperature associated with the fluid transport element has reached a first threshold temperature; and suspending the pulsing step upon sensing that the temperature associated with the fluid transport element has reached either a second threshold temperature or a lower threshold temperature, the second threshold temperature higher that the first threshold temperature, and the lower threshold temperature lower than the first threshold temperature. - View Dependent Claims (11, 12, 13)
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14. An electrosurgical system comprising:
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a controller comprising a processor; a memory coupled to the processor; a voltage generator operatively coupled to the processor a fluid flow pump operatively coupled to the processor; and an electrosurgical wand operatively coupled to an output of the voltage generator, the wand having a temperature sensor in operational relationship with a fluid transport element associated with the electrosurgical wand;
the temperature sensor communicatively coupled to the processor;wherein the memory stores a program that, when executed by the processor, causes the controller to; deliver a first high frequency voltage to an active electrode of the electrosurgical wand; control the pump to draw an electrically conductive fluid through the fluid transport element at a first flow rate range from the vicinity of the active electrode; sense a temperature signal indicative of a temperature of the electrically conductive fluid drawn from the vicinity of the active electrode; control the fluid pump and voltage generator so as to pulse the voltage supplied and the electrically conductive fluid drawn upon the processor receiving a signal indicative that the temperature of the electrically conductive fluid drawn from the vicinity of the active electrode exceeds a first threshold temperature. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification