Artificial kidney

Details Artificial kidney Artificial kidney

1976-11-04

1980-05-27

Spear, Jr., Frank A.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Fluid current controlled cyclic system

128214E, 210101, 210143, 210258, 210321B, B01D 3100, A61M 103

Patent

active

042049571

ABSTRACT:
An artificial kidney comprising a filter which is disposed between an artery connection and a vein connection, a collecting means for the filtrate to be discharged from the filter, a means for providing a metered supply of substituate to the purified blood, and a measuring means including two weighing devices; a first of the weighing devices measures the weight of filtrate to be discharged, and a second of the weighing device measures the weight of the substituate; the measuring means controls the providing means whereby the metered supply of substituate is in a fixed weight proportionality to the filtrate weight.

REFERENCES:
patent: 3506126 (1970-04-01), Serfass et al.
patent: 3579441 (1971-05-01), Brown
patent: 3825493 (1974-07-01), Brown et al.
Henderson et al., "Blood Purification by Ultrafiltration and Fluid Replacement (Diafiltration)", from Trans. Amer. Soc. Artif. Int. Organs, vol. XIII, 1967, pp. 216-221, 225 & 226.

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