Surgery – Instruments – Electrical application
Reexamination Certificate
2005-02-15
2005-02-15
Peffley, Michael (Department: 3739)
Surgery
Instruments
Electrical application
C606S041000
Reexamination Certificate
active
06855141
ABSTRACT:
A method for monitoring the impedance in a circuit coupling a radio frequency electrode to a radio frequency generator to control the power supplied by the generator to the electrode during a treatment procedure. In the method, the impedance in the circuit is monitored over a length of time. An expected impedance at the end of the treatment procedure is calculated from the monitored impedance and compared to a predetermined maximum impedance. The power supplied to the circuit is reduced if the expected impedance is greater than the predetermined maximum impedance. A computer-readable memory and apparatus utilizing the method are provided.
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IPLM Group, P.A.
Medtronic Inc.
Peffley Michael
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