Apparatus for detecting the volume of blood in a blood reservoir

Details Apparatus for detecting the volume of blood in a blood reservoir Apparatus for detecting the volume of blood in a blood reservoir

1985-05-21

1986-07-08

Walton, G. L.

Fluid handling

Liquid level responsive or maintaining systems

By weight of accumulated fluid

73299, 128DIG3, 128DIG13, 340611, 340614, 340626, 422 45, 604 65, 604 67, 604118, 604245, F16K 31126, A61M 103

Patent

active

045987335

ABSTRACT:
In combination with a blood reservoir, a blood volume detecting apparatus is used to ensure safe operation of the reservoir which includes a conduit in fluid communication with a lower part of said blood reservoir, a diaphragm associated with the other end of the conduit and movable by a differential hydraulic pressure applied by the blood through the conduit, and means for detecting the swelling and contracting movement of the diaphragm.

REFERENCES:
patent: 3601124 (1971-08-01), Petree
patent: 3641543 (1972-02-01), Rigby
patent: 3890969 (1975-06-01), Fischel
patent: 4121584 (1978-10-01), Turner et al.
patent: 4261388 (1981-04-01), Shelton
patent: 4385630 (1983-05-01), Gilcher et al.
patent: 4394862 (1983-07-01), Shim
patent: 4469480 (1984-09-01), Figler etal.

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