Patent ID: 9629640
Date: 2017-04-25
CPC Classifications: A61B,B23B,F04C,Y10T

Claim:
1. A quick-action coupling for a rotary surgical tool comprising: a rotary shaft, in the distal end surface of which there is formed a tool receptacle which is configured to receive a rotary surgical tool for conjoint rotation therewith, wherein the rotary shaft has, in the area of its distal end, at least one radial projection and at least one radial aperture, a locking body is arranged in the at least one aperture, said locking body being movable in the radial direction with respect to the rotary shaft, a sleeve, the proximal end of which is able to be pushed over the distal end of the rotary shaft, wherein the inner surface of the sleeve has an area in which the internal diameter of the proximal portion is smaller than the internal diameter of the distal portion, and the sleeve has at least one slot which has a first slot portion and at least one further slot portion, wherein the first slot portion extends from the proximal end of the sleeve, and the further slot portion is connected to the first slot portion, and an elastic element which urges the sleeve in the distal direction relative to the rotary shaft.