Patent ID: 7618425
Filing Date: 2009-11-17
Classification: A61B

Abstract:
1. A treatment device for use with at least a flexible endoscope, the treatment device being used to perform treatment in a body by being operated outside the body, comprising: a flexible member configured to be detachably fixed to an outside of an insert section of the endoscope, the flexible member having a distal end portion which is capable of being inserted into the body with the insert section of the endoscope, the flexible member further including a coil of which contraction in an axial direction is restricted and which forms an axial hole; a transmission member with a flexible structure which is movably arranged in the coil in the axial direction and capable of being operated outside the body; a link mechanism which is arranged at the distal end portion of the flexible member and actuated by an operation outside the body through the transmission member, the link mechanism including: a curved needle which is mounted on one of the first and second actuating members and is able to move in a direction to puncture a tissue and a direction to be removed from the tissue; and at least one tissue fixing means which is arranged at the other one of the first and second actuating members, wherein the tissue fixing means has a needle shape, wherein the distal end portions of the first and second arm members are rotatably held by the holding member at a predetermined interval therebetween to enable the proximal end portions of the first and second arm members to pass between the distal end portions of the first and second arm members, the thereby the curved needle and the tissue fixing means are allowed to move between a position where distal end portions of the curved needle and the tissue fixing means face in the same direction, and a position where the distal end portions of the curved needle and the tissue fixing means face in respective positions substantially perpendicular to each other, through a position where the distal end portions of the curved needle and the tissue fixing means face each other.