Patent ID: 8945154
Filing Date: 2015-02-03
Classification: A61B

Abstract:
1. A tissue closing device for closing an opening penetrating a living tissue, comprising: a closure for closing the opening, the closure comprising a seal portion adapted to cover the opening and a periphery of the opening from one side of a wall of a living body cavity, and a deformable deformation portion; and an arrangement device detachably retaining the closure to arrange the closure at a position to close the opening, the arrangement device comprising: a lock member having an elongate shape such as to be able to pass through the opening and locking at least a part of the closure in a retained state; a handling portion provided on the proximal side of the lock member; the handling portion comprises an elastic member configured to apply a force that moves the closure and the lock member relative to each other, and a movable trigger means movable to an actuating position for actuating the elastic member; wherein with the elastic member actuated by the trigger means, the elastic member applies the force that moves the closure and the lock member relative to each other while the closure is locked by the lock member to thereby deform the deformation portion; the trigger means comprising a restrictor configured to be positioned in one position in which the restrictor retains the elastic member in an active state and prevents the elastic member from applying the force that moves the closure and the lock member relative to each other, the restrictor also being configured to be positioned in an other position in which the restrictor no longer retains the elastic member so that the elastic member applies the force that moves the closure and the lock member relative to each other, the restrictor moving from the one position to the other position when the trigger means is moved to the actuating position; and the trigger means being configured so that movement of the handling portion in a proximal direction away from the closure while the seal portion is in contact with a surface of the living tissue at a distal side from a skin surface causes, by itself, the trigger means to automatically move to the actuating position, so that the restrictor moves to the other position and the elastic member applies the force that moves the closure and the lock member relative to each other.