Method for noninvasive intermittent and/or continuous hemoglobin

Details Method for noninvasive intermittent and/or continuous hemoglobin Method for noninvasive intermittent and/or continuous hemoglobin

1989-06-20

1992-04-07

Shay, David

Surgery

Truss

Pad

128637, 128664, 128898, A61B 500

Patent

active

051018250

ABSTRACT:
Described here are a novel means and device for noninvasively quantifying important blood constituents. Total hemoglobin, arterial oxygen content, hematocrit, and other parameters can all be determined quickly and easily without the need for skin puncture or lengthy laboratory analysis. The invention described here concerns the simultaneous measurement of volume changes and changes in the mass of either oxyhemoglobin, total hemoglobin, or reduced hemoglobin. The data obtained by these measurements is used to quantify the parameters of interest.

REFERENCES:
patent: 4167331 (1979-09-01), Nielsen
patent: 4704029 (1987-11-01), Van Heuvelen
patent: 4805623 (1989-02-01), Jobsis
"A New Instrument for the Simultaneous Measurement of Total Hemoglobin, % Oxyhemoglobin, % Carboxyhemoglobin, % Methemoglobin, and Oxygen content in Whole Blood" by Brown; IEEE Trans. on Biomed. Eng., vol. BM627, No. 3, 3/80.
Donahoe, T. M., and R. L. Longini (1985) "A New Noninvasive Backscattering Oximeter," Proceeding of the IEEE 7th Annual Conference of the Engineering in Medicine and Biology Society, Sep. 27-30, 1985, vol. 1, IEEE (U.S.) 144-147.
Merrick, E. S., and T. J. Hayes (1976) "Continuous, Non-Invasive Measurements of Arterial Blood Oxygen Levels," Hewlett-Packard J. 28(2): 2-9.

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