Measuring blood volume in soft-shell venous resevoirs by displac

Details Measuring blood volume in soft-shell venous resevoirs by displac Measuring blood volume in soft-shell venous resevoirs by displac

1997-04-29

1998-10-20

Oen, William L.

Measuring and testing

Liquid level or depth gauge

Hydrostatic pressure type

G01F 2300

Patent

active

058230459

ABSTRACT:
The blood volume in a soft-shell venous reservoir is measured by immersing the reservoir in a fluid and measuring the displacement of that fluid, either by measuring a liquid level in an overflow tube or by measuring the temperature-compensated gas pressure if the displaced fluid is a gas in a sealed container. Equipment operable from outside the container to measure the reservoir or to expel air therefrom is also disclosed.

REFERENCES:
patent: 3906794 (1975-09-01), Shotmeyer
patent: 4598733 (1986-07-01), Kanno et al.
patent: 4863452 (1989-09-01), Irmiter et al.
patent: 5043707 (1991-08-01), Heinze
patent: 5382227 (1995-01-01), Riquier
patent: 5563584 (1996-10-01), Rader et al.
patent: 5573526 (1996-11-01), Hess
Cobe Corporation Product Specification; Appendix C, pp. 46 & 47; date unknown.

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