High-frequency device for generating a plasma arc for the treatment of biological tissue
First Claim
1. 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.
0 Assignments
0 Petitions
Accused Products
Abstract
High-frequency device to generate a plasma arc (5) for the treatment of biological tissue (1), in particular in medicine, with a high-frequency generator (3) having an internal resistor (8) and, connected thereto by means of a flexible lead (10), an electrode (4) with which the plasma arc (5) is produced in a plasma segment (6) between the electrode (4) and the biological tissue (1), which is likewise electrically connected to the high-frequency generator (3), such that in the high-frequency generator (3) a high-frequency voltage source (7) is provided to which is connected a resonant circuit (2) that comprises a first reactance element (9a) with a capacitive action and, in series therewith, a second reactance element (9a) with an inductive action, and that has a resonant frequency at the frequency of the high-frequency oscillation emitted by the high-frequency voltage source (7), wherein the voltage to generate the plasma arc (5) is derived from the first or second reactance element (9a, 9b).
291 Citations
25 Claims
- 1. 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.
Specification