Patent ID: 7226460

Claim:
A surgical instrument for performing a surgical treatment to a human or animal body, comprising: a surgical implement and a handpiece, wherein the handpiece including an actuator and a coupling for attaching the surgical implement to the handpiece; the surgical implement includes an outer tube member with an outer hub and an outer tube extending longitudinally from the outer hub, the outer tube and the outer hub defining a longitudinal bore, the outer hub including a circumferentially extending locking groove that receives at least one locking ball disposed in the coupling and an engaging element disposed at an outer surface of the outer hub for releasable attachment of the outer tube member to the handpiece; and an inner tube member including an inner hub and an inner tube extending longitudinally from the inner hub, the inner tube and the inner hub defining a longitudinal bore, the inner tube configured to insert within the longitudinal bore of the outer tube member and including an end effect portion disposed adjacent to a distal end of the inner tube, the inner hub including a connection element radially extending from an outer circumference of the inner hub for releasable connection of the inner tube member to the actuator of the surgical instrument for performing a surgical treatment.