Patent ID: 6102910
Filing Date: 2000-08-15
Classification: A61B

Abstract:
A medical instrument comprising a body having a proximal end and a distal end, an inner part releasably fastened in the body at the proximal end, a distal end of the inner part carrying a tool which can be actuated by way of an actuation element adjustable axially and relative to the inner part and the tool, wherein the actuation element is releasably lockable in a proximal, axially adjustable receiver, the annular received being connected to a positioning element; anda proximal end of the actuation element lying within the annular receiver comprising at least one recess and wherein the receiver comprises at least one spring element which is laterally displaced with respect to the instrument longitudinal axis and which in a locking position resiliently engages into the recess, the spring element cooperating with the recess in the actuation element in a manner such that the actuation element in the receiver is only rotatable in one direction and when the actuation element is rotated in the one direction the spring element comes out of engagement with the recess and, at the same time the positioning element drives the actuation element away from the proximal end of the instrument.