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US 12,588,941 B2Granted
Electrosurgical instrument
AssigneeErbe Elektromedizin GmbH
InventorsMarc Mueller, Achim Brodbeck, Frederik Kleber
Life of this patent
Estimating the term…
Abstract
Instruments having a hood that defines and surrounds a flow chamber. The flow chamber can serve for suction of emissions that are produced due to influence of an electrode supplied with high frequency voltage on biological tissue. For elimination of tissue deposition and other clogging from the flow chamber the electrode is surrounded by a movable hood that can be transitioned for cleaning purposes out of its operating position into a cleaning position.
Claims15
An instrument for electrosurgical treatment of human or animal patients, comprising:
- an instrument body that comprises a distal end and at least one fluid channel that extends from an opening arranged at the distal end in proximal direction through the instrument body, the fluid channel adapted to be connected to a suction device such that a suction is appliable at the opening,
- an electrode that is held on the distal end of the instrument body,
- an optical element and a light passage window at a distal end of the optical element,
- a hood that defines a chamber through which the electrode extends and in which the opening and the light passage window are arranged, wherein the hood is movably supported back and forth between at least a first position in which it covers the light passage window and a second position in which it exposes the light passage window, wherein the electrode is arranged to always protrude distally from the hood in the first position and the second position.
1 more element
Dependencies are inferred from the claim text.