Patent ID: 6916322

Claim:
Device with a bone milling cutter for medical handpieces, comprising: a milling cutter ( 1 ) having a milling head ( 2 ) mounted so as is displaceable in a bushing ( 6 ) having a borehole with projections ( 18 ), said milling cutter having an axis of rotation, said bushing is coupled with the milling cutter ( 1 ) in the direction of said axis of rotation, wherein a circular knife edge is provided on the face ( 7 ) of the bushing ( 6 ), so that the bushing forms a rotating punch, and in that the milling head ( 2 ) can be pushed out of the plane of the face ( 7 ) of the bushing ( 6 ), and wherein the milling cutter ( 1 ) with its shaft ( 3 , 4 ) penetrates through a bell ( 11 ), and in that the bell is fixedly connected to the milling cutter shaft ( 4 ), and the bushing ( 6 ), which forms the rotating punch, is guided so as to slide against the pressure of a spring ( 8 ) in the bell ( 11 ), whereby the spring ( 8 ) is braced on the bell ( 11 ) and on the bushing ( 6 ).