Surgical instrument

A surgical instrument comprising:

• an end tool including one or more jaws and rotatable in at least one direction,
• wherein one jaw of the one or more jaws includes:
• a reciprocating assembly disposed in the one jaw and movable in a first direction, which is a longitudinal direction of the one jaw, with respect to the one jaw;
• an operation member disposed on one side of the reciprocating assembly, the operation member being capable of contacting the reciprocating assembly and movable forward toward a distal end of the one jaw from a proximal end side of the one jaw in the first direction by the reciprocating assembly;
• and
• a backward-moving wire disposed adjacent to the operation member and movable in the first direction,
• wherein the backward-moving wire includes one or more coupling members fixed to the backward-moving wire, and
• wherein, when the reciprocating assembly moves toward the distal end of the one jaw, the one or more coupling members are configured to contact the operation member to prevent the operation member from moving toward a proximal end of the one jaw.

A surgical instrument comprising:

• an end tool including one or more jaws and rotatable in at least one direction,
• wherein one jaw of the one or more jaws includes:
• a reciprocating assembly disposed in the one jaw and movable in a first direction, which is a longitudinal direction of the one jaw, with respect to the one jaw;
• and
• an operation member disposed on one side of the reciprocating assembly, the operation member being configured to contact the reciprocating assembly and movable forward toward a distal end of the one jaw from a proximal end side of the one jaw in the first direction by the reciprocating assembly,
• wherein one or more recesses are defined in a region of an inner side surface of the one jaw, which is to be in contact with the operation member, and
• wherein a snap to be in contact with the one or more recesses is disposed at the operation member.