Electrosurgical instrument having an arcuate electrode section
AssigneeAesculap AG
InventorsChristoph Rothweiler, Eugen Herner, Christian Huber
Life of this patent
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Abstract
An electrosurgical instrument includes mutually movable instrument legs each comprising one or more electrode faces between which tissue can be clamped and treated in electrothermal manner. The movement of the instrument legs relative to each other can be delimited by at least two spacers which are spaced from each other in the longitudinal direction of the instrument legs and act on the instrument legs. At least one electrode face portion subjected to deflection in a closed position of the instrument legs is formed to be bow-shaped, in particular concave, the curvature being contrary to the bending direction to be expected.
Claims12
An electrosurgical instrument comprising:
- mutually movable instrument legs attached to at least one handle piece, the instrument legs each comprising at least one or more electrode faces, wherein tissue can be clamped between the electrode faces and treated in an electrothermal manner, the movement of the instrument legs relative to each other being delimited by at least two spacers which are spaced from each other in a longitudinal direction of the instrument legs and act on the instrument legs,
- wherein at least one portion of one of the electrode faces, which is configured to be subjected to deflection in a closed position of the instrument legs by the respective opposing instrument leg, is formed to be concavely bow-shaped and has a curvature as seen in the longitudinal direction of the instrument legs, the curvature being contrary to a bending direction of said one of the electrode faces which is to be expected in a closed position, wherein at least one instrument leg is partially received in a support/abutment portion, the support/abutment portion projecting beyond a pivot joint, and wherein the at least one instrument leg is articulated to the support/abutment portion at the center of the instrument leg in the manner of a rocker.
An electrode in combination with an electrosurgical instrument, the electrosurgical instrument comprising mutually movable instrument legs, the instrument legs each comprising one or more electrode faces wherein tissue can be clamped between the electrode faces and treated in an electrothermal manner, the movement of the instrument legs relative to each other being delimited by at least two spacers which are spaced from each other in a longitudinal direction of the instrument legs and act on the instrument legs,
- wherein at least one portion of one of the electrode faces, which is configured to be subjected to deflection in a closed position of the instrument legs by the respective opposing instrument leg, is formed to be concavely bow-shaped and has a curvature as seen in the longitudinal direction of the instrument legs, the curvature being contrary to a bending direction of said one of the electrode faces which is to be expected in a closed position, wherein at least one instrument leg is partially received in a support/abutment portion, which projects beyond a pivot joint, and the at least one instrument leg is articulated to the support/abutment portion at a center of the instrument leg in the manner of a rocker.
Dependencies are inferred from the claim text.