Actuation grip for a microsurgical instrument, and microsurgical instrument

摘要

An actuation grip for a microsurgical instrument, with an inner shaft, which is surrounded coaxially and cylindrically by an outer shaft, wherein the shafts are axially movable relative to each other. Two pivotable grip parts, each with two ends, are coupled pivotably at a proximal end of the actuation grip. On each grip part, a first lever is articulated rotatably via an attachment point between the ends of the grip part, wherein the two first levers are coupled rotatably to each other at an intersection point between their ends. The first levers are each connected rotatably to a second lever at their ends directed away from the grip parts, such that the first levers form, with the second levers, a double scissor hinge which serves to move the two shafts axially relative to each other, in order to use this movement to actuate a surgical tool.