Drill for forming curved channel comprises pliable shaft with rotatable drill head at distal outer end of shaft and component for guiding shaft in curved path

摘要

The guide component comprises a wall (5) on one side of the drill shaft, which at one distal outer end has a wedge-shaped first guide member. A strip-shaped second guide member is provided, movably located between the wall and the drill shaft (2) and at its distal outer end has a bent formation (10). On displacement of the second guide member (8) in the direction of the first guide member the bent distal outer end of the second member can be guided by the wedge-shaped first guide member (7) and the pliable drill shaft (2) is movable past the distal outer end of the second guide member.