Patent ID: 9023066
Filing Date: 2015-05-05
Classification: A61B

Abstract:
1. A treatment device for endoscopic therapy, comprising: a suturing-ligating member having a distal end portion and a proximal end portion, that is configured to carry out at least one of suturing and ligation of biological tissue; a stopper having a distal end portion and a proximal end portion and positioned on the suturing-ligating member such that the suturing-ligating member projects from both the proximal and distal end portions of the stopper, wherein the stopper is movable forward or backward along the suturing-ligating member and stoppable by friction on the suturing-ligating member, such that the stopper is configured to keep the biological tissue in a sutured or ligated state by the suturing-ligating member; wherein the suturing-ligating member has a cut end formed as a result of cutting an odd portion of a proximal end portion side of the suturing-ligating member projecting from the proximal end portion of the stopper kept by friction, so that the treatment device is configured to be indwelt in a body in a state where the distal end portion of the suturing-ligating member ligates or sutures the biological tissue together with the stopper; and a suturing-ligation releasing member comprising a flexible wire looped around the suturing-ligating member at a position distal of the distal end portion of the stopper and not connected to the stopper, such that the releasing member is slidably attached to the suturing-ligating member and is configured to be moved independently of the suturing-ligating member, wherein, when the suturing-ligation releasing member is pulled toward the proximal end portion of the suturing-ligating member, the suturing-ligation releasing member presses against the stopper and the stopper is pressed toward the proximal end portion of the suturing-ligating member from the distal end portion thereof to be moved to the proximal end portion of the suturing-ligating member, thereby, releasing a suturing-ligation state maintained by friction between the suturing-ligating member and the stopper, and wherein the suturing-ligating member has the suturing-ligation state and a suturing-ligation releasing state, wherein in the suturing-ligation state, the biological tissue is ligated or sutured by fixing the stopper by friction on the suturing-ligating member, and in the suturing-ligation releasing state, the biological tissue is released from ligation or suture by separating the suturing-ligation releasing member and the stopper from the suturing-ligating member by pulling the suturing-ligation releasing member with a force larger than the friction toward a proximal end portion of the suturing-ligating member.