Patent ID: 6565558
Filing Date: 2003-05-20
Classification: A61B,H05H

Abstract:
High-frequency device to generate a plasma arc for the treatment or biological tissue with a high-frequency generator having an internal resistor and, connected thereto by means of a flexible lead, an electrode with which the plasma arc is produced in a plasma segment between the electrode and the biological tissue, which is likewise electrically connected to the high-frequency generator, wherein the high-frequency generator comprises a high-frequency voltage source connected a resonant circuit that comprises a first reactance element with a capacitive action and, in series therewith, a second reactance element with an inductive action, and that has a resonant frequency permanently set to the frequency of the high-frequency oscillation emitted by the high-frequency voltage source, wherein the voltage to generate the plasma arc is derived from the first or second reactance element and the internal resistance of the high-frequency voltage source is substantially smaller than the reactance of the first reactance element and of the second reactance element at the resonant frequency of the resonant circuit.