Ultrasonic blood volume measurement in soft-shell venous reservo

Details Ultrasonic blood volume measurement in soft-shell venous reservo Ultrasonic blood volume measurement in soft-shell venous reservo

1997-04-29

1999-09-21

Williams, Hezron

Measuring and testing

Vibration

By mechanical waves

73149, G01F 2328

Patent

active

059556722

ABSTRACT:
Blood volume in a soft-shell venous reservoir is measured for real-time display by ultrasonically measuring the distance between the walls of the reservoir bag at representative points and determining the volume of the bag by an interpolation based on the known shape of the reservoir bag as it expands and contracts.

REFERENCES:
patent: 4448207 (1984-05-01), Parrish
patent: 4658834 (1987-04-01), Blankenship et al.
patent: 5299579 (1994-04-01), Gedeon et al.
patent: 5303585 (1994-04-01), Lichte
patent: 5458566 (1995-10-01), Herrig et al.
"Bladder Scan Technology"--promotional literature of Diagnostic Ultrasound Corp. (DOC #900-0110 01 85).
"The Accuracy of Portable Ultrasound Scanning in the Measurement of Residual Urine Volume", The Journal of Urology, vol. 152,Dec. 1994.
COBE Corp. literature: Appendix C: COBE CMS Bracket for CMS VRB-1200, pp. 46 & 47, date unknown.

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