Patent ID: 8911454
Filing Date: 2014-12-16
Classification: A61B

Abstract:
1. A suturing device that sutures tissues within a body cavity by releasing a suture unit, the suturing device comprising: a first anchor and a second anchor included in the suture unit; a hollow needle which receives the first anchor and the second anchor inside of the needle; a tube which is fixed to a proximal end side of the needle; a wire inserted into the tube and the needle; a first sheath through which the tube and the needle are inserted; an operating portion main body fixed to a proximal end of the first sheath; a slider fixed to a proximal end of the tube and configured to move forward and backward freely in a sliding manner with respect to the operating portion main body; a slider control portion configured to regulate movement of the slider with respect to the operating portion main body at all times; a pair of rings which are provided in the slider when a press force is applied to the slider by a user hooking the user's fingers into the pair of rings, an operation to allow the slider move forward and backward in a sliding manner with respect to the operating portion main body is performed; and a deactivation member which is disposed in a position where the deactivation member is capable of being pressed along with the pair of rings when an operation is performed to allow the deactivation member to deactivate the regulation of the slider control portion by the user applying a press force to the pair of rings; wherein when the slider is retracted by the user in a backward direction with respect to the operating portion main body, the needle is received in the first sheath; and when the slider is protruded by the user in a forward direction with respect to the operating portion main body, the needle is exposed from a distal end of the first sheath, wherein: the sliding portion further comprises a shaft inserted so as to be parallel to the advancing and retracting direction with respect to the slider; a pair of plate clutches, each plate clutch having a first end portion having a through-hole through which the shaft is inserted, and a second end portion engaged with the slider; and a biasing member biasing the first end portions of the pair of the plate clutches so that the first end portions are separated from each other in the advancing and retracting direction; an inner diameter of the through-hole is set greater than an outer diameter of the shaft; and the second end portions of the pair of the plate clutches are positioned between the first end portions in the advancing and retracting direction in the normal state.