Invention Grant
US09591975B2 Contoured protrusion for improving spectroscopic measurement of blood constituents 有权
用于改善血液成分的光谱测量的轮廓突起

Contoured protrusion for improving spectroscopic measurement of blood constituents
Abstract:
A noninvasive physiological sensor for measuring one or more physiological parameters of a medical patient can include a bump interposed between a light source and a photodetector. The bump can be placed in contact with body tissue of a patient and thereby reduce a thickness of the body tissue. As a result, an optical pathlength between the light source and the photodetector can be reduced. In addition, the sensor can include a heat sink that can direct heat away from the light source. Moreover, the sensor can include shielding in the optical path between the light source and the photodetector. The shielding can reduce noise received by the photodetector.
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