Patent ID: 8518065

Claim:
A surgical instrument, comprising: a coupling assembly removably engaged with a motor assembly, the coupling assembly comprising an axial bore extending from a proximal portion of the coupling assembly to a distal portion of the coupling assembly along a longitudinal axis and comprising an attachment locking assembly adjacent the distal portion; a tool-coupling assembly carried by the coupling assembly and positioned at least partially within the axial bore of the coupling assembly, the tool coupling assembly comprising an elastically deformable gripping member and a locking sleeve rotatably disposed about the gripping member and a rotor shaft engageable with the motor assembly and driveable when the coupling assembly is engaged with the motor assembly; an attachment tube removably engaged with the attachment locking assembly of the coupling assembly and positioned at least partially within the axial bore of the coupling assembly, wherein in an unlocked state the attachment tube is movable with respect to the coupling assembly along the longitudinal axis and selectively engageable with the locking sleeve, and wherein in a locked state the attachment tube is displaced from the locking sleeve and is fixed with respect to the coupling assembly; and a working tool comprising a shaft with a distal working portion and a proximal coupling portion, the working tool extending through the attachment tube and the axial bore of the coupling assembly such that the proximal portion of the working tool is removably engaged with the tool-coupling assembly, wherein the rotor shaft of the tool-coupling assembly is structurally arranged to drive the working tool.