Method and apparatus for calculating arterial oxygen saturation

Details Method and apparatus for calculating arterial oxygen saturation Method and apparatus for calculating arterial oxygen saturation

1988-03-30

1989-09-26

Jaworski, Francis

Surgery

Truss

Pad

128664, 128665, A61B 500

Patent

active

048692549

ABSTRACT:
A method and apparatus for improving the calculation of oxygen saturation by non-invasive pulse oximeters during transient conditions. Transient conditions introduce artifactual errors into the detected optical signal because of changes in transmittance of the light with localized blood volume changes and as the average background oxygen saturation level of the patient's blood changes. The invention relates to correcting the detected optical pulses by linear interpolation and rate of change techniques or by selective frequency filtering and compensating the detected optical signal using the filtered signal to provide accurate estimates of oxygen saturation during transient conditions.

REFERENCES:
patent: 3412729 (1968-11-01), Smith, Jr.
patent: 3704706 (1972-12-01), Herczfeld et al.
patent: 3994284 (1976-11-01), Voelker
patent: 3998550 (1976-12-01), Konishi et al.
patent: 4086915 (1978-05-01), Kofsky
patent: 4266554 (1981-05-01), Hamaguri
patent: 4305398 (1981-12-01), Sawa
patent: 4407290 (1983-10-01), Wilber
patent: 4545387 (1985-10-01), Balique
patent: 4586513 (1986-06-01), Hamaguri
patent: 4651741 (1987-03-01), Passafaro
patent: 4759369 (1988-07-01), Taylor
Cohen et al., "Self-Balancing System for Medical and Physiological Instrumentation," IEEE Trans. Bio-Med. Eng., vol. BME-18, p. 66, (1971).

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