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Abstract

An instrument for continuous recirculation of peritoneal dialysate to infuse and drain out the dialysate automatically through catheters implanted in a peritoneal cavity of a human body. The instrument includes a prefilter, a primary filter comprising a semipermeable membrane having a maximum permeable molecule of up to 30,000 dalton, a pump for lowering the outside pressure of the primary filter relative to the inside pressure, a secondary filter having a semipermeable membrane having a maximum permeable molecule of 5,000 dalton, a pump for raising the pressure of a supplemental liquor line relative to the inside of a secondary filter line, and a method of recirculating dialysate using the above-mentioned instrument. The recirculation instrument permits the reuse of protein which is permeated out from a patient's body, as an osmotic agent in peritoneal dialysate, in order to maintain a disinfected recirculating line, and to improve an ultrafiltration rate and clearance of uremic toxin.

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First Claim