Spring-based firing mechanism for anastomotic ring applier

摘要

A surgical instrument for applying an anastomotic ring device comprises a handle that is connected to an anastomotic ring deployment mechanism by an elongate shaft. The instrument also comprises an actuation mechanism that is configured to apply an actuating force to the ring deployment mechanism to deploy an anastomotic ring. The actuation mechanism may comprise a spring or other resilient member moveable from a first position to a second position in order to actuate the ring deployment mechanism.