Transcutaneous bilirubin concentration measuring apparatus and a measurement data checking plate for use with the same
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United States of America Patent
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Jan 25, 2005
Grant Date -
N/A
app pub date -
Mar 28, 2000
filing date -
Mar 31, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Luminous fluxes from a xenon tube are introduced from one end of an optical fiber to an other end thereof and emerge therefrom. These luminous fluxes are incident of a skin of a person to be measured, and those diffused in the skin are incident on one end of an optical fiber through a first incident port and on one end of an optical fiber through a second incident port. The luminous fluxes from the one end are split by a dichroic mirror. The luminous fluxes reflected by the dichroic mirror are received by a photoelectric conversion element via a blue filter, and those having transmitted through the dichroic mirror are received by a photoelectric conversion element via a green filter. A concentration of bilirubin pigmented in fat of subcutaneous tissues can be accurately measured without being influenced by a difference in the thicknesses of epidermis and derma.
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