Blood pulse sensor and readout
Ear oximetry process and apparatus
Multi-wavelength incremental absorbence oximeter
ApplicationNo. 06/912993 filed on 09/26/1986
US Classes:356/41, Oximeters600/323, Oxygen saturation, e.g., oximeter600/330, Separation of ac/dc components in signal600/368, Physical characteristics of blood600/479Cardiovascular testing
ExaminersPrimary: Church, Craig E.
Assistant: Berman, Jack I.
Attorney, Agent or Firm
International ClassesA61B 5/00 (20060101)
G01N 21/31 (20060101)
AbstractThe present invention relates to an oximeter for monitoring oxygen saturation of arterial blood. Light of two wavelengths is transmitted through a specimen. Detectors measure the attenuation of light through the specimen to produce two modulating data streams. The data streams are thereafter processed, evaluated, and compared to determine oxygen saturation. A novel method to process, evaluate and compare the two data streams is disclosed.