Method and circuit for monitoring electrode surfaces at the...

Details Method and circuit for monitoring electrode surfaces at the... Method and circuit for monitoring electrode surfaces at the...

A - Human Necessities

61

B

326/15

A61B 18/16 (2006.01)

Patent

CA 2024660

ABSTRACT OF THE DISCLOSURE A method for monitoring a number of electrode surfaces of an electrode of the type used in an HF surgery device includes the steps, in a first stage of the method, of connecting one of the electrode surfaces to a current source and connecting a measuring unit via a first switch to at least two of the remaining electrode surfaces to be monitored and thereby forming measured values which are to be compared to each other for equality. In a second stage of the method, a different electrode surface is connected to the current source and the measuring unit is connected to different ones of the remaining electrode surfaces, and measured values are again obtained and compared for quality. The electrode surface which served as the auxiliary (i.e, current supplied) electrode in the first stage of the method may serve as one of the monitored electrode surfaces in the second stage. A circuit for practicing the method is also disclosed.

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