Appeal to reengatar the security key of the stapler tissue.

摘要

Abstract invention patent: "appeal to reengatar the security key of the stapler fabric". The present invention relates to a surgical instrument including an anvil coupled selectively to a set of stitching head and a trigger operable for firing the staples in the tissue compressed between the anvil and the stapling head assembly.In some versions, a locking element can pick up a safety feature to prevent actuation of the incus in relation to the stapling head assembly.For example, a tab can pick up a crack in an actuator, a lock of a screen door can provide frictional resistance or pick up the teeth in the actuator, a door can act on the coupling with one or more grooves can engage with teeth, teeth oriented in the actuator.The locking element may include a set of ratchet to engage the actuator and / or a pressure switch may operate in a niche at the same time that disengages the locking element. Alternatively, in some versions, all the action of the trigger can be disengaged before the shooting. A position indicator of the anvil can restrict the set of operation of the trigger coupling.