Apparatus for measuring/determining concentrations of light absorbing materials in blood
First Claim
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1. An apparatus for measuring/determining concentrations of light absorbing materials in blood comprising:
- a probe for detecting a photoplethysmogram by irradiating and passing a plurality of optical signals of different wavelengths onto and through a living tissue;
a measurement device main body for determining concentrations of light absorbing materials in blood on the basis of the pulse spectrophotometry;
simulating-signal generating means, for generating an arbitrary simulating-pulse-wave signal corresponding to the photoplethysmogram detected by the probe, provided in the measurement device main body.
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Abstract
An apparatus for measuring/determining concentrations of light absorbing materials in blood includes a probe 10 and a measurement device main body 30. A plurality of optical signals of different wavelengths are irradiated onto living tissue, and the concentrations of light absorbing materials in blood is determined by means of a photoplethysmogram detected by means of the light that has transmitted through the tissue. Simulating-signal generating means is provided in the measurement device main body and generates an arbitrary simulating-pulse-wave signal corresponding to the photoplethysmogram detected by the probe.
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Citations
22 Claims
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1. An apparatus for measuring/determining concentrations of light absorbing materials in blood comprising:
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a probe for detecting a photoplethysmogram by irradiating and passing a plurality of optical signals of different wavelengths onto and through a living tissue;
a measurement device main body for determining concentrations of light absorbing materials in blood on the basis of the pulse spectrophotometry;
simulating-signal generating means, for generating an arbitrary simulating-pulse-wave signal corresponding to the photoplethysmogram detected by the probe, provided in the measurement device main body. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for measuring/determining concentrations of light absorbing materials in blood comprising:
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a measurement device main body determining concentrations of light absorbing materials in blood on the basis of a photoplethysmogram detected by irradiating and passing a plurality of optical signals of different wavelengths onto and through a living tissue;
simulating-signal generating means, for generating an arbitrary simulating-pulse-wave signal corresponding to the photoplethysmogram detected by a probe, provided in the measurement device main body a bypass interconnection, arranged in the measurement device main body, routed so as to bypass a probe to be adapted; and
signal switching means for selectively inputting the photoplethysmogram detected by the probe and the simulating-pulse-wave signal which is transmitted through the bypass interconnection into a signal input section of the measurement device main body. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification