Device for making a borehole into a bone

摘要

The invention relates to a device for penetratingly extending a blind hole into a hard tissue, particularly a jawbone. The device is characterized in that it comprises a tubular body (1) having a distal working opening (2) and an inlet (3) opposite the working opening (2), said inlet being closed by a sealing element (4) that is penetrated by a shaft (5) of a working tool, for example a milling tool (5, 6), and allows at least a feed motion, a drive motion and a steering motion of the working tool (5, 6), the tubular body (1) being provided with a connection (8) for applying an internal pressure.

主权项

1. A device for penetratingly extending a blind hole introduced into hard tissue, particularly a jawbone, comprising:
a tubular body having a distal working opening and an inlet opposite the working opening, wherein the tubular body is either constructed to be sealingly inserted into a bone bore or wherein the tubular body comprises means for sealing insertion into the bone bore, a sealing element in cooperation with a shaft of a rotatably driven milling cutter said shaft penetrating the sealing element, closing the inlet of the tubular body, while allowing at least a feed motion, a drive motion and a steering motion of the rotatably driven milling cutter, a connection disposed on the tubular body and opening into the tubular body at a proximal end of the tubular body for applying a pressure above atmospheric pressure in the tubular body; and a pressure control device connected to the tubular body via the connection, said pressure control device constructed to generate the pressure above atmospheric pressure.