Patent ID: 8333588
Filing Date: 2012-12-18
Classification: A61C

Abstract:
1. A medical hand-piece element, comprising: a coupling mechanism for releasable connection of the hand-piece element to a drive unit, a tool receptacle, a drive element for transmitting a driving movement from the drive unit to the tool receptacle so that the tool receptacle can be set in a working movement, wherein the drive element extends into the coupling mechanism and has a proximal end drivingly engageable with a coupling counter part of the drive unit to transmit the driving movement for the tool receptacle, wherein the drive element comprises a first shaft and a second shaft which are connected to one another by a geared connection and wherein the first shaft is arranged closer to the coupling mechanism than is the second shaft, and a generator for converting mechanical energy into electric energy, wherein the generator is arranged substantially around the first shaft and can be driven by the first shaft of the drive element, and wherein the generator is arranged in a receptacle element which is connected to the medical hand-piece element such that the receptacle element contacts only inner surfaces of the hand-piece element.