Multi-lumen endoscopic catheter

Details Multi-lumen endoscopic catheter Multi-lumen endoscopic catheter

1994-01-31

1997-02-04

McDermott, Corrine M.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604280, A61M 3100

Patent

active

055992994

ABSTRACT:
Multi-lumen catheters are intended for advancement through the accessory channel on endoscope into a body passage into the gastrointestinal system. The catheters have two or more independent lumens extending continuously to ports at the distal tip for injection of a contrast medium simultaneously with a guide wire for ERCP procedures and for passage of accessories such as visualization devices, polypectomy snares, cytology brushes, papillotomes and stone baskets for catheterization, diagnosis and treatment within the biliary tract. Use of balloons for maintaining a catheter in fixed position in the biliary tract and for dilatation is also disclosed. The catheters employed are extrusions of a resin comprised of nylon and PEBA. The catheters may also be extruded from polyurethane. Multi-lumen catheters having a reduced diameter distal tip portion on which a dilatation balloon is located are also disclosed. The reduced diameter distal tip portion may serve as a platform for support of a stent.

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