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Method of using a guide wire, therapeutic instrument and endoscope

  • US 7,341,555 B2
  • Filed: 09/27/2004
  • Issued: 03/11/2008
  • Est. Priority Date: 04/17/2000
  • Status: Expired due to Term
First Claim
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1. A method for performing treatment on a desired part of a cavity of a living body by using a therapeutic instrument of an endoscope, which includes a guide wire insertion lumen, after inserting the therapeutic instrument into the cavity of the living body through a therapeutic instrument insertion channel of the endoscope, the endoscope comprising a guide wire, the therapeutic instrument, and a therapeutic instrument elevator base capable of guiding the therapeutic instrument to a desired position, the method comprising:

  • a) a step of inserting the guide wire into the therapeutic instrument insertion channel of the endoscope;

    b) a step of locating the guide wire in a desired position in the cavity of the living body;

    c) a step of returning a distal end of the therapeutic instrument to a position which is closer to an operation portion side of the endoscope than to guide wire fixing means provided in the vicinity of a distal end portion of an insertion portion of the endoscope;

    d) a step of fixing the guide wire in the vicinity of the distal end portion of the insertion portion of the endoscope; and

    e) a step of completely pulling out the therapeutic instrument from the therapeutic instrument insertion channel of the endoscope.

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