Title:
METHOD FOR NON-BLOOD OBSERVATIVE MEASUREMENT IN LIVING BODY ON DEGREE OF OXYGEN SATURATION OF ARTERY BLOOD AND DEVICE FOR EXECUTING IT
Document Type and Number:
Japanese Patent JPH05228129
Kind Code:
A
Abstract:
PURPOSE: To provide an easy portable device which comprises an optoelectronic sensor, and by which a rate of Hb(hemoglobin), HbO2 (oxyhemoglobin) and HbCO (carboxyhemoglobin) in artery can be easily measured for a long period. CONSTITUTION: This device comprises three laser diodes 11-13 respectively and periodically energized on the basis of a tempo of a lock 17 and emitting the light in 660 nm, 750 nm and 940 nm, and the generated laser beam is applied to a tissue area 1 including a vessel of a subject through the optical fibers 14-16 of which the points are bundled. The light after passed through the tissue area 1 is received by an optoelectronic sensor 10, and an interlace signal representing the molecular absorption is generated to drive a switch formed by the analogue AND gates 21-23 through an amplifier 20. Then the outputs of the AND gates 21-23 are input to a computing means 30 through the A/D converters 24-26 and the separating stages 27-29 of the variable component to measure a rate of Hb, HbO2 and HbCO in artery.
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Inventors:
BARTHELEMY JEAN CLAUDE (FR)
GEYSSANT ANDRE (FR)
GEYSSANT ANDRE (FR)
Application Number:
JP19082392A
Publication Date:
September 07, 1993
Filing Date:
July 17, 1992
Export Citation:
Assignee:
EFFETS BIOLOGIQUES EXERCICE (FR)
International Classes:
A61B5/00; A61B5/145; A61B5/1455; (IPC1-7): A61B5/14
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)