| 摘要 |
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).
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