Apparatus for calibrating pulse oximeter
First Claim
1. An apparatus for calibrating a pulse oximeter incorporating a measuring probe having a light emitting section and a light-receiving section comprising:
- a tissue model inserted into a space between said light-emitting section and a light-receiving section of said measuring probe;
a blood model moved within said tissue model; and
drive means for driving said blood model within said tissue model to traverse said space between said light-emitting section and said light receiving section,wherein said tissue model has a light-absorbing characteristic approximated to that of a living tissue and said blood model has a light-absorbing characteristic approximated to that of a blood.
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Accused Products
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.
417 Citations
6 Claims
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1. An apparatus for calibrating a pulse oximeter incorporating a measuring probe having a light emitting section and a light-receiving section comprising:
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a tissue model inserted into a space between said light-emitting section and a light-receiving section of said measuring probe; a blood model moved within said tissue model; and drive means for driving said blood model within said tissue model to traverse said space between said light-emitting section and said light receiving section, wherein said tissue model has a light-absorbing characteristic approximated to that of a living tissue and said blood model has a light-absorbing characteristic approximated to that of a blood. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification