MEDICAL DRILL Russian patent published in 1998 - IPC

FIELD: medical engineering. SUBSTANCE: device has casing 1, instrument holder 2, engine 3 and driving unit having multi-stage transmission unit 4 mounted in casing 1. Casing 1 is designed as structure composed of one or several detachable sections for multi-stage transmission having at least two reducing units or at least two gear boxes or at least two speed gear-boxes. The multi-stage transmission unit can be realized as minimum one reducing unit connected to at least one gear box and at least one speed gear-box or as minimum one reducing unit connected to at least one gear box or at least one speed gear-box or as minimum one reducing unit connected to at least one gear box and at least one speed gear-box coupled with each other so that speed gear-box reducer and gear-box reducer are produced as mutually substitutable members as sets of mutually substitutable members. EFFECT: simplified design; improved instrument engagement with any tissue in human body. 9 cl, 5 dwg