| 摘要 |
<p>Cranial drill comprising at least a first milling cutter (14) having a first end defining a plurality of teeth (141), and a second end having first clutch means (142), said first milling cutter (14) being mounted in such a way that it can rotate and move translationally relative to a drive element (10) connected to second clutch means (115) whose shape is complementary to that of said first clutch means (142), between, as a minimum, a clutch-engaged position and a rest position. According to the invention, a cranial drill of this kind comprises progressive clutch means comprising at least one inclined plane (113) defining a guide ramp for said first clutch means (142) or for said second clutch means), and said ramp leading to said second engagement means (115) or to said first clutch means.</p> |
