Duodenal intubation catheter

• US 5,401,241 A
• Filed: 05/07/1992
• Issued: 03/28/1995
• Est. Priority Date: 05/07/1992
• Status: Expired due to Term

• Current Assignee: Albert Einstein College of Medicine of Yeshiva University
• Original Assignee: Inamed Development Company
• Inventors: Delany, Harry M.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): Clarke, Bob
• Application Number:
  US07/879,804
• Time in Patent Office: 1,055 Days
• Field of Search: 604/175, 604/102, 604/103, 604/45, 604/49, 604/54, 604/96, 604/270, 604/280, 604/43, 606/192, 606/194
• US Class Current: 604/43
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/0662 Guide tubes
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence

Abstract

An apparatus and method for the non-surgical direct intubation of the duodenum or small bowel. The apparatus consists of an introducer tube comprising a double-lumen tubular member having a proximal end and a distal end. One of the lumens is dimensioned to permit the passage of a duodenal catheter therethrough. The other lumen is in fluid communication with the interior of an inflatable, anatomically-conforming balloon affixed asymmetrically near the distal end of the introducer tube. The anatomically-conforming balloon is stomach shaped when inflated. The introducer tube is advanced through the esophagus until the balloon is within the confines of the stomach. The introducer tube is then rotated so that the balloon is oriented toward (inflates toward) the greater curvature of the stomach. As the balloon is inflated, it expands into and conforms with the interior shape of the stomach. Upon completion of the inflation, the distal end of the catheter lumen of the introducer tube is in juxtaposition with the pylorus. A duodenal catheter is inserted through the catheter lumen of the introducer tube into the duodenum. After placement of the duodenal catheter, the balloon on the introducer tube is deflated and the introducer tube removed, leaving the distal tip of the duodenal catheter within the duodenum.

Claims

1. A catheter introducer tube for insertion into a portaled stomach chamber, thereafter providing an interior conduit between first and second openings in the wall of the stomach chamber, the interior of the stomach chamber having an anatomical shape, said catheter introducer tube comprising a flexible elongate tubular member having:

(a) a proximal end and a distal end and first and second lumens therebetween, said first lumen being said internal conduit and said first lumen being dimensioned to permit the passage of a catheter therethrough;

(b) an outer wall coextensive with said elongate tubular member;

(c) an inflatable balloon anatomically conforming to the stomach affixed to said outer wall substantially adjacent to the distal end thereof, the interior of said anatomically conforming balloon being in fluid communication with said second lumen and wherein said distal tip of the introducer tube is substantially adjacent to the second opening in the stomach chamber wall following inflation of the anatomically conforming balloon within said stomach chamber.

2. The catheter introducer tube of claim 1 wherein the catheter introducer tube further comprises a mark near the proximal end thereof, said mark providing a visual index of the rotational orientation of said balloon within the stomach.

3. The catheter introducer tube of claim 2 further comprising an externally detectable marker proximal and adjacent to said anatomically conforming balloon.