Patent ID: 6152922
Filing Date: 2000-11-28
Classification: A61B

Abstract:
A high-frequency snare for an endoscope, said high-frequency snare having an electrically conductive control wire axially movably inserted in an electrically insulating sheath, and a wire loop formed by bending an electrically conductive elastic wire in a U-shape, said wire loop being connected at a rear end thereof to said control wire, wherein when said control wire is pushed from a proximal end of said sheath, said wire loop projects from a distal end of said sheath to expand in a loop shape, whereas when said control wire is pulled, said wire loop withdraws into the distal end of said sheath to contract, said high-frequency snare comprising:a distal end tip attached to a bent portion at a distal end of said wire loop, said distal end tip having a pair of parallel through-holes, wherein two approximately parallel portions of said elastic wire bent in a U-shape at said bent portion of said wire loop are loosely passed through said through-holes, respectively, without being secured to said distal end tip.