#$%^&*AU2015261592A120160721.pdf#####LOADING UNIT LOCKING COLLAR ABSTRACT A loading unit (10) and locking collar (40) assembly comprising: a shell assembly (20) having a proximal end portion (22) configured to receive a distal end portion (110) of a surgical instrument, the proximal end portion (22) including an annular ring (23) and defining an annular groove (24), the annular ring (23) defining a lock opening (28) and a locking collar (40) releasably disposed within the annular groove (24) and including an annular body (42) having a pair of release surfaces (41a, 41b) and a lock (44), the lock (44) extending radially inward from the annular body (42), the pair of release surfaces (41a, 41b) configured to transition the locking collar (40) from a locked configuration, wherein the lock (44) extends through the lock opening (28) to penetrate the inner surface of the annular ring (23), to an unlocked configuration, in which the lock (44) is positioned radially outward from the inner surface of the annular ring (23).1/7 CN CJ
