Patent ID: 9700367
Date: 2017-07-11
CPC Classifications: A61B

Claim:
1. An apparatus for thermosurgery comprising: a generator for supplying high frequency electrical treatment energy; first and second counter-electrode units each including a pair of planar counter-electrodes adapted to be placed on a body of a patient; an interface connection system configured to allow connecting thereto an application electrode to be positioned in an area of a treatment site on or in the body of the patient, and the first and second counter-electrode units; and impedance measurement circuitry defining a plurality of measurement circuits and including a plurality of measurement cells to measure impedance in the plurality of measurement circuits, wherein the plurality of measurement circuits includes first, second and third measurement circuits and the plurality of measurement cells includes first, second and third measurement cells, wherein the first measurement cell is configured to measure impedance in the first measurement circuit, the second measurement cell is configured to measure impedance in the second measurement circuit, and the third measurement cell is configured to measure impedance in the third measurement circuit, wherein the first measurement circuit leads through the pair of planar counter-electrodes of the first counter-electrode unit, which are arranged electrically in series in the first measurement circuit, wherein the second measurement circuit leads through the pair of planar counter-electrodes of the second counter-electrode unit, which are arranged electrically in series in the second measurement circuit, and wherein the third measurement circuit leads through the first and second counter-electrode units, which are arranged electrically in series in the third measurement circuit, wherein the pair of planar counter-electrodes of the first counter-electrode unit are arranged electrically parallel to one another in the third measurement circuit and the pair of planar counter-electrodes of the second counter-electrode unit are arranged electrically parallel to one another in the third measurement circuit.