Regeneratable peritoneal dialysis bag

Claim 1

A regeneratable ambulatory peritoneal dialysis bag comprising; a. two flexible sidewalls having leak-proof sterile sealed edges, b. a single sealable peritoneal fluid communicating orifice in said bag, c. two headers communicating through the exterior of said bag, said headers mounted in a flange which is solvent and heat sealed to the bag sidewall, d. a filtration means constructed and arranged for intermittent circulation of make-up dialysate through said bag consisting of a hollow fiber bundle mounted in said bag with the fiber ends encircled with a seal plug and sealed with a cured potting resin in said headers, said fibers selected so as to allow passage of metabolic by-products across the fiber wall without removal of proteins from the peritoneal dialysate.

Claim 6

A method for continuous removal of toxic metabolites from the blood by peritoneal dialysis, in which a single connection is made from a patient's peritoneal catheter to a dialysis bag for a series of successive dialysis exchanges, comprising the steps of: (a) infusing of peritoneal dialysate from a regeneratable ambulatory dialysis bag having flexible sidewalls into the peritoneal cavity, (b) exchanging metabolities across the peritoneal membrane from the blood into said dialysate, (c) draining said dialysate from the peritoneal cavity into said dialysis bag, without mechanical pumping, (d) circulating make-up dialysis fluid through said hollow fibers located in said bag, (e) regenerating said dialysate in said bag by hollow fiber exchange of metabolites in said peritoneal dialysate with said make-up dialysis fluid in said fibers without removal of proteins from said peritoneal dialysate, (f) reinfusing the cleansed peritoneal dialysate from said bag into the peritoneal cavity for continued peritoneal dialysis, and (g) rolling up the emptied dialysis bag for carrying by the peritoneal dialysis patient until the next regeneration, while said bag remains attached to the peritoneal catheter of said patient.

Claim 7

A method for continuous removal of toxic metabolites from the blood by peritoneal dialysis, in which a single connection is made from a patient's peritoneal catheter to a dialysis bag for a series of successive dialysis exchanges, comprising the steps of: (a) infusing of peritoneal dialysate from a regeneratable ambulatory dialysis bag having flexible sidewalls into the peritoneal cavity, (b) exchanging metabolities across the peritoneal membrane from the blood into said dialysate, (c) draining said dialysate from the peritoneal cavity into said dialysis bag, without mechanical pumping, (d) circulating make-up dialysis fluid through said hollow fibers located in said bag, (e) regenerating said dialysate in said bag by hollow fiber exchange of metabolites in said peritoneal dialysate with said make-up dialysis fluid in said fibers without removal of proteins from said peritoneal dialysate, (f) reinfusing the cleansed peritoneal dialysate from said bag into the peritoneal cavity for continued peritoneal dialysis, and (g) rolling up the emptied dialysis bag for carrying by the peritoneal dialysis patient until the next regeneration, while said bag remains attached to the peritoneal catheter of said patient.