Patent ID: 8226677
Filing Date: 2012-07-24
Classification: A61B,A61M

Abstract:
1. A method for operating a handpiece, the method comprising the steps of: providing suction through a suction tube to a suction bore in the handpiece, the suction tube and the suction bore comprising a suction path, the handpiece including a coupling assembly at a distal end for coupling to a proximal end of a cutting accessory and the handpiece including a motor for driving the cutting accessory, the cutting accessory comprising a fixed element with an opening at a distal end thereof and a driven element with an opening at a distal end thereof, the openings together defining a window for at least partially opening and closing during movement of the driven element; actuating the driven element of the cutting accessory by operating the motor; determining the position of the driven element relative to the fixed element by sensing at least one of pressure and fluid flow in the suction path; and controlling the motor to stop the driven element at a predetermined position in response to the sensed pressure or fluid flow.