A surgical including a handle assembly, an elongated portion, an end effector, and a stop member is disclosed. The elongated portion extends distally from the handle assembly. The end effector is disposed adjacent a distal portion of the elongated portion and includes a first jaw member and a second...http://www.google.co.uk/patents/US20100072257?utm_source=gb-gplus-sharePatent US20100072257 - Tissue Stop for Surgical Instrument
