A bone-excavating apparatus comprises a shaft and a drill so sized as to be inserted into an articulation through a skin-cutting portion and removable from the shaft. In a state in which the shaft is installed on the drill, the shaft and the drill have a drill-locking mechanism for preventing the drill...http://www.google.es/patents/US6015411?utm_source=gb-gplus-sharePatente US6015411 - Bone excavating apparatus for repairing ligament and a bone tunnel forming method
Bone excavating apparatus for repairing ligament and a bone tunnel forming ...
