TEMPERATURE RESPONSIVE ABLATION RF DRIVING FOR MODERATING RETURN ELECTRODE TEMPERATURE
First Claim
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1. A method for ablating a tissue mass associated with a human or animal patient being treated, comprising:
- (a) positioning an ablating electrode in a tissue mass to be ablated;
(b) positioning a plurality of return electrodes on the patient;
(c) applying electrical energy to said return electrodes and said ablating electrode;
(d) measuring the temperature of said return electrodes to generate a temperature measurement signal; and
(e) varying the electrical energy applied between said return electrodes and said ablating electrode in response to said temperature measurement signal.
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Abstract
The inventive method for ablating a tissue mass associated with a human or animal patient being treated comprises positioning an ablating electrode in a tissue mass to be ablated. A plurality of return electrodes are positioned on the patient. Electrical energy is applied between the return electrodes and the ablating electrode. The temperature of the return electrodes is measured to generate a temperature measurement signal which is used to control ablation current through the return electrodes.
140 Citations
46 Claims
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1. A method for ablating a tissue mass associated with a human or animal patient being treated, comprising:
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(a) positioning an ablating electrode in a tissue mass to be ablated; (b) positioning a plurality of return electrodes on the patient; (c) applying electrical energy to said return electrodes and said ablating electrode; (d) measuring the temperature of said return electrodes to generate a temperature measurement signal; and (e) varying the electrical energy applied between said return electrodes and said ablating electrode in response to said temperature measurement signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 41, 42, 43, 44, 45, 46)
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12. A device for ablating tissue masses associated with a human or animal patient, comprising:
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(a) an electrical source for generating an ablation current; (b) a coupling circuit coupled to said electrical source; (c) an ablation electrode coupled to said coupling circuit; (d) a plurality of return electrodes coupled to said coupling circuit to receive ablation current; (e) a plurality of temperature measurement transducers, each of said temperature transducers being associated with a respective return electrode, said temperature transducers each providing a temperature measurement signal; and (f) a computing device coupled to said temperature measurement signals for producing signals to control the coupling of said ablation current to said return electrodes by said coupling circuit. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification