Systems and methods for controlling power in an electrosurgical probe
First Claim
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1. A tissue treatment method, comprising:
- initiating a tissue coagulation procedure;
monitoring impedance at least two different frequencies during the tissue coagulation procedure; and
adjusting the tissue coagulation procedure in response to the monitored impedance at at least two different frequencies being indicative of a viable tissue to non-viable tissue transition.
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Abstract
Systems and methods for controlling the power supplied to an electrosurgical probe. The systems and methods may be used to monitor electrode-tissue contact, adjust power in response to a loss of contact, and apply power in such a manner that charring, coagulum formation and tissue popping are less likely to occur.
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Citations
9 Claims
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1. A tissue treatment method, comprising:
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initiating a tissue coagulation procedure; monitoring impedance at least two different frequencies during the tissue coagulation procedure; and adjusting the tissue coagulation procedure in response to the monitored impedance at at least two different frequencies being indicative of a viable tissue to non-viable tissue transition. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tissue treatment apparatus, comprising:
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a shaft including at least one operative element; means for initiating a tissue coagulation procedure with the at least one operative element; means for monitoring impedance at least two different frequencies; and means for adjusting the tissue coagulation procedure in response the monitored impedance at least two different frequencies being indicative of viable tissue to non-viable tissue transition. - View Dependent Claims (9)
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Specification