Importance

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Abstract

The catheter for continuous ambulatory peritoneal dialysis includes a hypodermic tunnel portion at the intermediate portion of a tube formed with a soft biocompatable material. One leg portion of the catheter serves as an external extension. Another leg portion serves as a peritoneal cavity insertion portion having suction/drain holes. A first cuff 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 structurally 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 when positioned in the patient. The second cuff is disposed at the vertex of the loop. According to the method the catheter is inserted bidirectionally; in one direction through the peritoneal entry site and in the second direction hypodermally from the entrance to the skin exit in such a manner as to direct the fluid attachment end of the catheter downward. In the process the second cuff is fixed hypodermally to the fascia, and the first cuff is fixedly disposed at a position corresponding to the peritoneal entry and directing the catheter downward into the peritoneal cavity.

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First Claim