Multi-lumen endoscopic catheter

  • US 6,770,066 B1
  • Filed: 07/05/2000
  • Issued: 08/03/2004
  • Est. Priority Date: 05/11/1992
  • Status: Expired due to Fees
First Claim
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1. A method of obtaining access to a duct of the biliary tree using a catheter having at least three lumens, a first of said at least three lumens being configured for receiving a guidewire therethrough, a second of said lumens being configured for injection of fluid through the lumen and a third of said lumens being configured for receiving an electrosurgical cutting instrument, the method comprising:

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

    actuating the electrosurgical cutting instrument received in the third lumen to cut tissue in said duct; and

    injecting a fluid through the second lumen.

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