There is disclosed a surgical instrument and loading unit for performing an anastomosis of first and second blood vessels. The surgical instrument includes a handle assembly and a body portion extending distally from the handle assembly. The detachable loading unit includes an anvil releasably engagable...http://www.google.se/patents/US6024748?utm_source=gb-gplus-sharePatent US6024748 - Singleshot anastomosis instrument with detachable loading unit and method
