| 摘要 |
The invention relates to a device for use in osteosynthesis, in particular f or drilling, cutting threads or inserting implants. Said device comprises a dri ll bushing (1) with a longitudinal axis (2), a rear end (6), into which an instrument or implant can be introduced, a front end (5) that can be placed on an implant or a bone and a hollow chamber (11) lying coaxially to the longitudinal axis, a supporting handle (9) that can be connected to the dril l bushing (1) and a coolant connection (10), through which a coolant can be conducted directly into the hollow chamber (11) of the drill bushing (1). Sa id drill bushing (1) is divided into two parts along the longitudinal axis (2). The drill bushing (1) can thus be used to tighten screws with a larger diameter screw head. Once the screw has been tightened, the half-shells (3; 4) of the drill bushing (1) are pushed apart and the drill bushing (1) is remov ed from the screw, without being hindered by the larger diameter screw head.</S DOAB>
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