| 摘要 |
For the coagulation of tissue by plasma, instruments are known that comprise a tubular probe body through which inert gas is conducted and an ignition electrode within the lumen in the region of an outlet of the probe body. A current conductor is provided to supply a coagulation current to the ignition electrode. The ignition electrode is fixed to the probe body substantially in the middle, by means of fixing devices. The present invention provides an instrument for plasma coagulation wherein a fixing device for the ignition electrode comprises a piece of sheet metal, a wafer or similar flat body, which is fixed by its longitudinal edges to the tube wall so that it extends substantially diametrically across the lumen, and to which the ignition electrode is attached.
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