| 主权项 |
1. A closure device comprising:
a first longitudinal member which extends along a longitudinal axis; a second longitudinal member which extends along the longitudinal axis so as to be movable relative to the first longitudinal member; a protruding member which is detachably provided at a distal end of the first longitudinal member; a first grasping member which is provided at the protruding member and intersects with the protruding member, and which includes a first distal end portion and a first intermediate portion, the first distal end portion being configured to grasp tissue in cooperation with the protruding member, and the first intermediate portion being supported so as to be turnable with respect to the protruding member; a second grasping member which is provided at the protruding member and intersects with the protruding member, and which includes a second distal end portion and a second intermediate portion, the second distal end portion being configured to grasp tissue in cooperation with the protruding member, and the second intermediate portion being supported so as to be turnable with respect to the protruding member; a first operating portion which is provided at a proximal side of the first longitudinal member, and which is configured to operate the first grasping member; a second operating portion which is provided at the proximal side of the first longitudinal member, and which is configured to operate the second grasping member independently from the first grasping member; a turning shaft which supports the first grasping member and the second grasping member such that the first grasping member and the second grasping member are turnable relative to the protruding member, the turning shaft being provided in an orthogonal direction with respect to a longitudinal direction of the first intermediate portion and the second intermediate portion; a first linear member which is connected to a proximal end of the first grasping member and to a distal end of the first operating portion, and which extends along the longitudinal axis; a second linear member which is connected to a proximal end of the second grasping member and to a distal end of the second operating portion, and which extends along the longitudinal axis so as to be movable relative to the first linear member; and a holding portion that has an action portion for applying a force in a direction in which the proximal end of the first grasping member and the proximal end of the second grasping member approach the protruding member with respect to the turning shaft, the holding portion being provided at a distal end of the second longitudinal member, and the holding portion being configured to be attached to or removed from the distal end of the second longitudinal member together with the first grasping member and the second grasping member. |
