Patent ID: 8852201

Claim:
A bone drill comprising: an inner assembly comprising a shaft with a flexible portion having a proximal end and a distal end; a drill tip coupled to the distal end of the shaft, the shaft housing the drill tip; and an inner hub for connecting the bone drill to a power system; and an outer assembly including a cannulated sheath with a proximal end and a distal end, the sheath having a curved portion at the distal end and housing a portion of the shaft and the drill tip, the cannulated sheath covering the drill tip, the drill tip being housed within the curved portion of the cannulated sheath, the cannulated sheath being retractable to expose the drill tip and to subsequently allow drilling of a bone with the exposed drill tip; an actuator mechanism for moving the cannulated sheath along a longitudinal axis of the shaft, the actuator mechanism retracting the sheath so that the drill tip extends beyond the distal end of the sheath; and a power system coupled to the shaft to drive the drill tip into bone.