SURGICAL TOOL, ESPECIALLY FOR MACHINING BONES FOR INSERTION OF A DENTAL IMPLANT

摘要

The invention relates to a surgical tool (1) for preparing bones, especially for machining bones for insertion of a dental implant, for example a drilling device comprising a tool shank (2) having a channel (3) for guiding a cooling or drilling liquid therethrough, a rotatable machining part (4) and a guide element (5) which is arranged on the proximal end of the machining part (4), which can be axially moved relative to the machining part (4) and which is adapted to be introduced into a pilot bore and has drilling grooves (6) for guiding the cooling or drilling liquid. In order to be able to machine bone material by means of the tool (1) without the tool (1) suddenly deviating from the pilot bore or from penetrating the drill channel, while at the same time allowing an improved cooling effect and improved removal of bone chips, tissue fragments and blood, the outlet where the cooling or drilling liquid (3) exits the channel (3) towards the drilling grooves (6) is arranged in the region of the transition between the proximal end of the machining part (4) and the distal end of the guide element (5).