Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1979-08-24
1981-05-12
Castel, Benoit
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
210149, 210188, 2102572, 210258, 2103212, 2104161, B01O 3100
Patent
active
042670403
ABSTRACT:
The ultra-filtration in a hemodialysis operation is controlled by a control apparatus which is connected to a balancing device (1) and to a dosing device (9) to form a closed loop control circuit for the metered supply of dialysis concentrate into the balancing device and for the metered supply of fresh dialysis solution into the dialyzer. The closed loop control circuit controls the alternating supply of fresh dialysis solution into one chamber of a balancing device and the withdrawal of used-up dialysis solution from the other chamber of the balancing device. The closed loop control circuit also controls a pump for the metered withdrawal of used-up dialysis solution out of the dialysis circulatory system. The dosing device operates as a proportionality device to produce fresh dialysis solution from water and dialysis concentrate whereby the concentrate is dosed and the dialysis solution is also dosed or metered.
REFERENCES:
patent: 3352779 (1967-11-01), Austin et al.
patent: 3795318 (1974-03-01), Crane et al.
patent: 3976574 (1976-08-01), White
patent: 4037616 (1977-07-01), Pinkerton
patent: 4054522 (1977-10-01), Pinkerton
patent: 4060485 (1977-11-01), Eaton
patent: 4113614 (1978-09-01), Rollo et al.
Kunitomo, T. et al., "Controlled Ultrafiltration With Hemodialysis", Trans. Am. Soc. Art. Int. Organs., vol. 23, 1977, pp. 234-242.
Ivanovich, P. et al., "A Compact Hydraulic Proporting System For Hemodialysis", Trans. Am. Soc. Art. Int. Organs., vol. 12, 1966, pp. 357-361.
Castel Benoit
Dr. Edward Fresenuis, Chemischpharmazeutische Industrie KG, Appa
Fasse W. G.
Gould D. F.
Sadowski David R.
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