Apparatus for measuring circulating blood volume

Details Apparatus for measuring circulating blood volume Apparatus for measuring circulating blood volume

1997-08-22

1999-12-07

O'Connor, Cary

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

600479, 600507, A61B 600, A61B 502

Patent

active

059998415

ABSTRACT:
Using the principle of pulse oximetry, the relationship between the logarithm of dye density and the passage of time is obtained to determine a regression line for the linear portion of the relationship; an intial dye density in the blood is determined for the point of time that defines the mean transit time for the initial circulation of the injected dye on the regression line; and the circulating blood volume is calculated from the thus determined initial dye density.

REFERENCES:
patent: 3677648 (1972-07-01), Dorsch
patent: 5024231 (1991-06-01), Feldschuh et al.
patent: 5284137 (1994-02-01), Kessler et al.
patent: 5458128 (1995-10-01), Polanyi et al.
patent: 5697371 (1997-12-01), Aoyagi et al.
A Method for Measurement of Total Circulating Blood Volume Using Indocyanine Green, Kiyoshi Haneda et al., Tohoku J. exp. Med. 1986, 148, pp. 49-56.

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