System and methods of controlling temperature related to electrosurgical procedures
First Claim
Patent Images
1. An electrosurgical system comprising:
- a controller comprisinga processor;
a memory coupled to the processor;
a voltage generator operatively coupled to the processora fluid flow pump operatively coupled to the processor and configured to control a fluid flow through a fluid aspiration element; and
an electrosurgical wand operatively coupled to an output of the voltage generator, the wand having a temperature sensor in operational relationship with the fluid aspiration element;
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 fluid flow pump to draw an electrically conductive fluid through the fluid aspiration element at a first flow rate range, away 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 with the temperature sensor; and
initiate a first over-temperature cycle, including controlling the fluid flow pump and voltage generator so as to deliver a pulsed voltage and a pulsed fluid flow rate, upon the processor receiving a signal indicative that the temperature exceeds a first threshold temperature;
wherein the first threshold temperature is configured to detect a temperature indicative of an inadequate fluid flow condition through the fluid aspiration element and the first over-temperature cycle is configured to regulate said temperature.
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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.
99 Citations
21 Claims
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1. 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 configured to control a fluid flow through a fluid aspiration element; and an electrosurgical wand operatively coupled to an output of the voltage generator, the wand having a temperature sensor in operational relationship with the fluid aspiration element;
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 fluid flow pump to draw an electrically conductive fluid through the fluid aspiration element at a first flow rate range, away 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 with the temperature sensor; and initiate a first over-temperature cycle, including controlling the fluid flow pump and voltage generator so as to deliver a pulsed voltage and a pulsed fluid flow rate, upon the processor receiving a signal indicative that the temperature exceeds a first threshold temperature;
wherein the first threshold temperature is configured to detect a temperature indicative of an inadequate fluid flow condition through the fluid aspiration element and the first over-temperature cycle is configured to regulate said temperature.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An electrosurgical system comprising:
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a controller comprising a processor; a memory communicably coupled to the processor; a voltage generator operatively coupled to the processor a fluid flow pump operatively coupled to the processor and configured to control a fluid flow through a fluid aspiration element; and an electrosurgical wand operatively coupled to an output of the voltage generator; a temperature sensor operatively coupled to the fluid aspiration element the temperature sensor for detecting an inadequate fluid flow condition through the fluid aspiration element and 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 aspiration element at a first flow rate range from the vicinity of the active electrode; receive a signal from the temperature sensor; and control the fluid pump and voltage generator so as to synchronously pulse both the voltage supplied and the fluid flow rate upon the processor receiving a signal indicative that a temperature exceeds a first threshold temperature and thereby an inadequate fluid flow condition. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. An electrosurgical system comprising:
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a controller comprising a processor, a memory communicably coupled to the processor; a voltage generator for delivering a high frequency voltage output, operatively coupled to the processor a fluid flow pump operatively coupled to the processor and configured to control a fluid flow through a fluid suction tube; and an electrosurgical wand operatively coupled to an output of the voltage generator; a temperature sensor directly coupled to an external surface of the fluid suction tube and communicatively coupled to the processor, for detecting high temperature conditions of the external surface; 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 suction tube at a first flow rate range from the vicinity of the active electrode; receive a signal from the temperature sensor; and upon the processor receiving a signal indicative that a temperature meets or exceeds a first threshold temperature, control the fluid pump to modulate the fluid flow and the voltage generator to modulate the output voltage so as to regulate the temperature of the fluid suction tube external surface. - View Dependent Claims (21)
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Specification