A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 1/28 (2006.01) A61M 25/00 (2006.01)
Patent
CA 2152488
This invention relates to improvements in a catheter for injection/drainage of a dialysis solution of CAPD which is hemocatharsis for chronic renal failure patient, and its object is to allow complication such as peritonitis, etc. to be as minimum as possible, and to improve the tip migration of the catheter within the peritoneal cavity, thus to eliminate dialysis solution drainage failure. The catheter for CAPD is constituted as follows: A hypodermic tunnel portion is provided at the intermediate portion of a tube formed with a soft material having human body compatibility, one leg portion thereof is caused to serve as an external extension, the other leg portion is caused to serve as a peritoneal cavity insertion portion having suction/drain holes, a first cuff is provided at the boundary between the hypodermic tunnel portion and the peritoneal cavity insertion portion, the portion in the vicinity of the first cuff toward the inside of the peritoneal cavity from the first cuff is caused to be of a structure such that the restoring force of the tube is enhanced, the hypodermic tunnel portion is bent in a loop form so as to take an inverse U-shape, the second cuff is disposed at the vertex of the loop, the second cuff is sutured and fixed to the fascia, and the first cuff is disposed at a position corresponding to the peritoneum.
Ishizaki Makoto
Adams Patent & Trademark Agency
Hayashidera Medinooru Co. Ltd.
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