Medical instrument

摘要

A medical instrument having a force-limiting apparatus that, upon reaching the borderline force, ensures maintenance of the applied resistance force. It is proposed that the force-limiting apparatus should include a housing in which two components that can move in opposite directions to one another in the longitudinal direction of the housing are disposed in such a way that both components are disposed so that they can slide axially in the housing against the force of at least one spring element disposed in the housing, such that the two components are coupled with one another by at least one force transmission element that is acting on both components.

主权项

1. A medical instrument comprising:
a shaft on whose distal end a tool is disposed that includes at least one movable jaw member and on whose proximal end a handle is disposed that is equipped with at least one movable gripping member, such that the at least one movable jaw member and the at least one movable gripping member are operatively linked by a push-pull element and such that, between the at least one movable gripping member and the at least one movable jaw member at least one reversibly acting force-limiting apparatus is disposed to limit a force that is transmitted by force transmission from the at least one movable gripping member onto the at least one movable jaw member and the push-pull element, that are operatively linked with the at least one movable gripping member, characterized in that the at least one reversibly acting force-limiting apparatus includes a housing in which two components, which can slide in opposite directions to one another in a longitudinal direction of the housing, are disposed in such a way that both components are disposed so that they can slide axially in the housing against a force of at least one spring element, such that the two components are coupled together by at least one force transmission element configured as a sphere acting on both components, wherein the at least one force transmission element is contiguous with two contact surfaces of the two components, the two contact surfaces configured as sloping surfaces inclined toward one another.