Patent ID: 7699868
Filing Date: 2010-04-20
Classification: A61B

Abstract:
1. A medical gripping and/or cutting instrument comprising an instrument shaft, a handle that can be movably fixed in longitudinal direction on the instrument shaft via a coupling mechanism, and a tool positioned on the distal end of the instrument shaft consisting of two jaw members, where at least one jaw member of the tool is movable with respect to the other jaw member, and wherein the coupling mechanism in addition serves to operate the at least one movable jaw member of the tool and that the instrument shaft consists of an inner shaft as well as an outer tube coaxially surrounding the inner shaft, and the outer tube consists at least partly of several tube segments that can slide independently of one another in the longitudinal direction of the instrument shaft and the handle can be secured on the outside of the outer tube; wherein the handle consists of the coupling mechanism made up of at least two clampinq elements and a distancinq case positioned between the two clamping elements; wherein the axial extension of the distancing case is greater than that of the individual tube seqments of the outer tube; and wherein the two clampinq elements are ore-tensioned by means of a spring element in the direction toward the projection on the distancing case.