パルスオキシメーター開発経緯 その④
カルフォルニア大学Severinghaus教授の論文
Severinghaus教授と本田教授は1987年、次の如くの論文を発表し、結論を出している。
Severinghaus JW, Honda Y. History of blood gas analysis VII.
Pulse oximetry. J Clin Monit 1987; 3:135-138
ABSTRACT. Pulse oximetry is based on a relatively new concept, using the pulsatile
variation in optical density of tissues in the red and infrated wavelength 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 in1975.
A competing device was introduce and also tested and described in Japan. William New and Jack Lloyd recoganized 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.
REFFRENCES
- Severinghaus J.Astrup P. History of blood analysis. VI. Oximetry. J Clin Monit 1986;2;270-288
- Peterson J. The development of pulse oximetry. Science 1986; 232:G135-136
- Aoyagi T, Kishi M, Yamaguchi K, Watanabe S. Improvement of the earpiece oximeter.Abstract of the 13th annual meeting of the Japanese society of Medical Electronics and Biological Engineering, 1974:90-91(Jap)
- Nakajima S, Ikeda K, Nishioka H, et al. Clinical application of a new (fingertip type) Pulse wave oximeter. Translated from the Japanese. Jap J Sur 1979, 41:57-61(Jap)