Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Transparent
Patent
1975-12-08
1978-03-28
Spear, Jr., Frank A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Transparent
128214R, 210 96M, 210321A, B01D 3100
Patent
active
040813720
ABSTRACT:
Hemoglobin or hemolysate is used as an indicator for leakage detection in the dialysis membrane interface separating the sterile from the nonsterile circuitry in a recirculating peritoneal dialysis system. The indicator is dissolved in the steril dialysis fluid and is retained within the sterile circuit unless leakage occurs in the membrane. Upon rupture or other leakage in the membrane, fluid turbulance and pressure gradient cause crossflow between the sterile and nonsterile circuitry, endangering the patient with infection, peritonitis and endotoxin shock. Such crossflow is detected by the concurrent coloration caused by the mixing of hemoglobin indicator in the nosterile dialysis fluid.
REFERENCES:
patent: 3519572 (1970-07-01), Kita
patent: 3802562 (1974-04-01), Kozlov et al.
patent: 3873467 (1975-03-01), Hunt
patent: 3900396 (1975-08-01), Lamadrid
Shinaberger et al., "Increasing Efficiency--Recirculation Dialysis," from vol. XI, Trans. Amer. Soc. Artif. Int. Organs, 1965 pp. 76-82.
Atkin Curtis Lyman
Stephen Robert Longfield
Spear, Jr. Frank A.
University of Utah
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