Apparatus for calibrating pulse oximeter
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United States of America Patent
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Jan 11, 1994
Grant Date -
N/A
app pub date -
Feb 14, 1992
filing date -
Feb 15, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for calibrating a pulse oximeter which can improve the repetitivity of measured values for calibration tests and which can calibrate the pulse oximeter with a high reliability. A tissue model having a light-absorbing characteristic approximated to that of the tissue of a living body is inserted into a space between a light-emitting section and a light-receiving section of a measuring probe that is connected to the pulse oximeter, and a blood model having a light-absorbing characteristic that is approximated to that of the blood is moved within the tissue model so as to enter into or exit from the space between the light-emitting section and the light-receiving section.
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