Patent ID: 8864749
Filing Date: 2014-10-21
Classification: A61B

Abstract:
1. A surgical instrument comprising: a surgical section that performs a predetermined procedure on a target organ in a body cavity; an insertion section that includes an active movable section and a switchable tube section, the active movable section being provided with the surgical section at a top end of the active movable section, and the switchable tube section being selectively switchable between a pliable state and a rigid state; and a joint-lock wire which is configured to switch the switchable tube section to one of the pliable state and the rigid state, wherein the joint-lock wire communicates through an inside of the switchable tube section, one end of the joint-lock wire is fixed to a distal end of the switchable tube section, another end of the joint-lock wire is wound about a pivot member, and the pivot member pivots in accordance with rotation of a dial configured to adjust tension of the joint-lock wire.