Patent ID: 6224611
Filing Date: 2001-05-01
Classification: A61B

Abstract:
A snare for an endoscope comprising an axially movable control wire extending within a flexible sheath and a snare loop, said snare loop connected to a distal end of said control wire, wherein when said control wire is axially advanced, said snare loop projects from a distal end of said flexible sheath and expands into a loop shape due to elasticity of said snare loop, whereas when said control wire is axially retracted, said snare loop retracts into the distal end of said flexible sheath and is folded into a closed shape;said snare loop comprising two elastic wires extending between two mutually secured portions, said two elastic wires extending parallel to each other and at least partially in close contact with each other, said two elastic wires being secured directly together at two positions longitudinally spaced from each other, each of said two mutually secured portions having an outer diameter not larger than a total of the diameters of said two elastic wires; andsaid control wire comprising a portion of at least one of said two elastic wires that extends rearwardly from the one of said two mutually secured portions that is positioned at a rear end of said snare loop.