Patent ID: 6717092
Filing Date: 2004-04-06
Classification: A61B,B23K

Abstract:
A method of manufacturing a treatment instrument of an endoscope, said treatment instrument including a first coil and a second coil that is different from said first coil and to be connected to said first coil, an operation wire, and a device secured to a distal end of said first coil, said wire being inserted through said first coil and said second coil, a distal end of said wire being connected to said device, said device being driven by said wire when said wire is moved in said first coil and said second coil, said method comprising:inserting one end of said first coil and one end of said second coil in a connection pipe from opposite ends thereof; and exposing ends of said connection pipe and portions of said first coil and said second coil corresponding to said ends of said connection pipe to arc columns, respectively, the portions exposed to the arc columns being melted, and thereafter, solidified.