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Peritoneal catheter device for dialysis

  • US 4,437,856 A
  • Filed: 02/09/1981
  • Issued: 03/20/1984
  • Est. Priority Date: 02/09/1981
  • Status: Expired due to Fees
First Claim
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1. A peritoneal catheter device for dialysis comprising a rigid catheter portion of elongated tubular shape having an interior, a length, a distal and a proximal end thereof and a plurality of openings spaced apart from each other along the entire length of the catheter portion, said tubular catheter portion being closed at said distal end and defining a cul-de-sec, a longitudinal partition wall extending within said catheter portion along the entire length thereof and dividing the catheter interior into two separated delivery and discharge conduits, supply and discharge ducts for a dialysing liquid connected at said proximal end of said rigid catheter portion with said separated conduits, an inflatable and expandable membrane generally of tubular shape surrounding said catheter portion throughout its length and fixed near said distal and proximal end to define an expandable chamber between said catheter and said inflatable and expandable membrane adapted to be filled with dialysing liquid, said inflatable membrane having perforations defining means for the passage of said dialysing liquid therethrough and in use expanding to a substantially balloon-like shape, said catheter being adapted in use to be inserted in a body cavity such as the peritoneal cavity between the bends of the intestine to deliver and draw the dialysing liquid through the openings of said catheter.

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