Patent ID: 7465309

Claim:
A surgical handpiece for actuating a cutting accessory that has an elongated shaft, said handpiece comprising: a housing; a motor disposed in said housing; an input drive shaft coupled to said motor for rotation upon actuation of said motor; an output drive shaft longitudinally spaced from said input drive shaft, said output drive shaft having a bore for receiving the cutting accessory shaft; a push rod the extends between said input drive shaft and said output drive shaft, said push rod having a first end coupled to said input drive shaft to rotate with said input drive shaft and a second end opposite the first end coupled to said output drive shaft to rotate with said output drive shaft, said push rod being coupled to said input drive shaft and said output drive shaft to move longitudinally relative to said drive shafts; a holding member attached to said output drive shaft to rotate with said output drive shaft, said holding member being moveably attached to said output drive shaft so as to have a first position in which a holding member grasping surface is disposed in the output drive shaft to abut the cutting accessory and a second position in which said grasping surface is spaced from the cutting accessory shaft; a locking member adjacent said holding member, said locking member having a run position in which said locking member abuts said holding member to lock said holding member grasping surface in the first position and a load position wherein said locking member is spaced from said holding member grasping surface so that said holding member grasping surface can move to the second position and wherein said locking member is attached to said push rod to move longitudinally with the longitudinal displacement of said push rod, the longitudinal movement of said locking member causing said locking member to move between the run position and the load position; and a control member attached to said push rod for longitudinally displacing said push rod.