Diagnostic method and apparatus using light
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United States of America Patent
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Jan 24, 2006
Grant Date -
Dec 25, 2003
app pub date -
Mar 14, 2003
filing date -
Mar 16, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A diagnosis method and apparatus for measuring blood hemoglobin concentration, oxygen saturation, pulse rate, respiration rate, or degree of aging of blood vessels using light includes an input/output unit for receiving a command for measurement from a user and for providing information on the result of a measurement to the user; a control unit for receiving the command for measurement from the input/output unit and for generating a control signal; a light generating unit for generating at least two light beams for measurement according to the control signal; a light receiving unit for receiving the light beams transmitted through an object that is subject to measurement and for converting the received light beams into electrical signals; and a data processing unit for processing the electrical signals received from the light receiving unit and for outputting information on the result of a predetermined measurement.
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