Patent ID: 6013086
Filing Date: 2000-01-11
Classification: A61B

Abstract:
A wire loop type instrument for an endoscope which has a plurality of elastic wires bundled together at distal and proximal ends thereof and adapted to form a loop shape as a whole, said elastic wires being capable of projecting from and withdrawing into a distal end of a sheath, so that when withdrawn into the distal end of said sheath, said elastic wires are folded, and when projecting from the distal end of said sheath, said elastic wires expand in said loop shape by their own elasticity, said wire loop type instrument comprising:a pipe-shaped member having said elastic wires inserted therein in a bundle at at least one of the distal and proximal ends of said elastic wires; andmeans for fixing said elastic wires to said pipe-shaped member such that portions of said elastic wires which are in a vicinity of an entrance of said pipe-shaped member are not fixed, but said elastic wires are fixed to said pipe-shaped member at portions thereof which are on an inner side of the vicinity of said entrance.