A noninvasive reflectance pulse oximeter sensor

S. Takatani, C. Davies, G. P. Noon, Y. Nose, M. E. DeBakey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A reflectance pulse oximeter (RPO) sensor has been designed to noninvasively measure arterial oxygen saturation (SaO2) from the forehead or cheek. It consists of 660- and 820-nm light emitting diodes (LEDs) and a photodiode chip mounted on a single substrate. Four LED chips for each wavelength were placed at equal distance around the photodiode to enhance the signal level as well as to minimize inhomogeneous effects of tissue. In animals, the RPO yielded better correlation than the transmission pulse oximeter (TPO) in the saturation range from 40-100%. The sensor was evaluated on 15 critically ill patients in the operating room. The RPO yielded accurate measure of SaO2 in comparison to the blood samples. It is concluded that the RPO can be a powerful alternative to the TPO in the operating room and intensive care unit, particularly in caring for critically ill patients, neonates, and infants.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
PublisherPubl by IEEE
Pages1610-1611
Number of pages2
Editionpt 4
ISBN (Print)0780302168
StatePublished - 1991
Externally publishedYes
EventProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Orlando, FL, USA
Duration: Oct 31 1991Nov 3 1991

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 4
Volume13
ISSN (Print)0589-1019

Other

OtherProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityOrlando, FL, USA
Period10/31/9111/3/91

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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