Water pressure regulator for hemodialysis apparatus

Details Water pressure regulator for hemodialysis apparatus Water pressure regulator for hemodialysis apparatus

1987-09-22

1989-05-09

Therkorn, Ernest G.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Maintaining stream pressure or flow

210188, 2101952, 21032171, B01D 2130

Patent

active

048286931

ABSTRACT:
A pressure regulating system for a hemodialysis machine utilizes a deaeration pump and a regulator in a deaeration loop for minimizing pressure and flow transients in a heated water supply. The deaeration loop has the pump, a deaeration pressure regulator, a deaerator, and a back pressure regulator. The pump produces a negative pressure in heated water entering the deaeration pressure regulator to circulate the water in the deaeration loop and to enhance removal of air from the water. The back pressure regulator controls the loop water pressure to a value greater than the incoming water pressure and supplies water to the dialyzer system of the machine isolated from supply water pressure and flow variations.

REFERENCES:
patent: 3598727 (1971-08-01), Willcock
patent: 3878095 (1975-04-01), Frasier et al.
patent: 4054522 (1977-10-01), Pinkerton
patent: 4060485 (1977-11-01), Eaton
patent: 4209391 (1980-06-01), Lipps et al.
patent: 4477342 (1984-10-01), Allan et al.
patent: 4715959 (1987-12-01), Allan et al.
patent: 4718022 (1988-01-01), Cochran

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