Optical fiber sheet and body motion sensor
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United States of America Patent
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Aug 23, 2016
Grant Date -
Mar 22, 2012
app pub date -
Mar 24, 2010
filing date -
Mar 25, 2009
priority date (Note) -
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Abstract
A body motion sensor, such as an SAS diagnostic device, with which a subject can be examined in a state close to that in an ordinary living environment and it is possible to clearly discriminate between an apnea state and a hypopnea state by means of a relatively simple analytical method; and an optical fiber sheet suitable for use in the sensor. The body motion sensor, such as an SAS diagnostic device, comprises a light source such as an LED, an optical fiber sheet, and an analysis unit that determines fluctuations in the quantity of light outputted from the optical fiber sheet and detects motions of the body. As the optical fiber sheet, use is made of an optical fiber sheet comprising a planar object, such as a fabric, paper, or plastic sheet, and graded-index optical quartz fibers directly or indirectly disposed thereon or affixed thereto When the sheet is produced, it is preferred to use a pressure-sensitive adhesive sheet comprising a sheet support, such as paper or fabric, and a pressure-sensitive adhesive layer formed thereon.
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