Device for measuring oxygen saturation degree in arterial blood

Details Device for measuring oxygen saturation degree in arterial blood Device for measuring oxygen saturation degree in arterial blood

1987-09-04

1990-07-24

Wayner, William E.

Surgery

Truss

Pad

738665, 356 41, A61B 500

Patent

active

049428772

ABSTRACT:
An improved oximeter device for the calculation of oxygen saturation in arterial blood is provided. A pair of LED's are positioned to transmit red and infrared light through tissue containing the blood. A photo electric converter is provided to receive the transmitted light and convert it into a electrical signals. The probe can store data directed to various characteristics of the LED's, such as the primary wavelength and a secondary wavelength of the LED and an indication of the amount of crosstalk that can occur in the signals. The correction of any errors resulting from crosstalk plus the calculation of oxygen saturation depending on the various characteristics of the LED's can be effectuated.

REFERENCES:
patent: 3910701 (1975-10-01), Henderson et al.
patent: 4303984 (1981-12-01), Houvig
patent: 4418392 (1983-11-01), Hata
patent: 4621643 (1986-11-01), New, Jr. et al.
patent: 4636934 (1987-01-01), Schwendemann
patent: 4684245 (1987-08-01), Goldring
Continuous, Non-Invasive Measurements of Arterial Blood Oxygen Levels, Edwin B. Merrick et al., pp. 2-10, Hewlet-Packard Journal.

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