History of blood gas analysis. VII. Pulse oximetry
- 1 April 1987
- journal article
- other
- Published by Springer Nature in Journal of Clinical Monitoring and Computing
- Vol. 3 (2) , 135-138
- https://doi.org/10.1007/bf00858362
Abstract
Pulse oximetry is based on a relatively new concept, using the pulsatile variations in optical density of tissues in the red and infrared wavelengths to compute arterial oxygen saturation without need for calibration. The method was invented in 1972 by Takuo Aoyagi, a bioengineer, while he was working on an ear densitometer for recording dye dilution curves. Susumu Nakajima, a surgeon, and his associates first tested the device in patients, reporting it in 1975. A competing device was introduced and also tested and described in Japan. William New and Jack Lloyd recognized the potential importance of pulse oximetry and developed interest among anesthesiologists and others concerned with critical care in the United States. Success brought patent litigation and much competition.Keywords
This publication has 2 references indexed in Scilit:
- History of blood gas analysis. VI. OximetryJournal of Clinical Monitoring and Computing, 1986