Patent ID: 7981130

Claim:
A medical instrument for cutting biological tissue, having a hollow cutting tube that can rotate about its longitudinal axis by means of an engine, on whose distal end at least one blade is mounted, and also having a handle in which the cutting tube is mounted for guiding the instrument, and with the engine configured as a hollow-shaft engine positioned on the cutting tube, distinguished in that the cutting tube is powered to rotate about the longitudinal axis thereof because the hollow cutting tube and the hollow-shaft engine are coupled with one another by means of a coupling mechanism positioned on the hollow cutting tube for transmitting the rotation of the hollow-shaft engine onto the hollow cutting tube, with the coupling mechanism having rods running in the axial direction of the cutting tube, which rods are positioned on the cutting tube and/or positioned on the hollow-shaft engine, and which are insertable into corresponding openings in the other respective component.