Multi-lumen endoscopic catheter

  • US 5,599,299 A
  • Filed: 01/31/1994
  • Issued: 02/04/1997
  • Est. Priority Date: 05/11/1992
  • Status: Expired due to Term
First Claim
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1. A method of study of a duct of a patient using a catheter having at least three lumens, each having a distal opening at a distal end of said catheter, a first lumen of said catheter having a wire guide threaded therethrough, comprising the steps of:

  • threading said catheter and said wire guide through an endoscope and into said duct to a desired position;

    infusing a contrast medium through a second lumen of said catheter to visualize said duct through the use of said contrast medium while maintaining said wire guide in said first lumen of said catheter; and

    advancing an instrument through a third lumen of said catheter and through said distal opening of said third lumen and along said duct while maintaining said wire guide in said first lumen of said catheter.

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