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AssigneeHitachi, Ltd. & Hitachi Medical Corp.
InventorsHiroki Sato, Atsushi Maki, Masashi Kiguchi
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The invention provides optical technique for measuring metabolism in a living body that can further reduce an error in measurement even if distance between irradiation and detection is fixed. The living body is classified into measurement regions and different measuring wavelengths are set according to the classification. For example, the head is classified into four regions of a parietal region, a frontal region, a temporal region and an occipital region and a wavelength according to each tissue is set in a wavelength selecting system. In measurement, wavelengths according to each measurement region are selected by multiple wavelengths-light radiating means. Besides, for a region having large personal difference, premeasurement is made using plural combinations of wavelengths and wavelengths are selected using a calculated error in measurement as a criterion.
An optical system for measuring metabolism in a body based upon an optical system for measuring metabolism in a body in which light radiating means for radiating light on the living body and light receiving means for detecting transmitted light radiated from the light radiating means and propagated in the living body are arranged on the living body and which is configured so that information in the living body is measured based upon a signal detected by the light receiving means with a substantial middle point of the light radiating means and the light receiving means as a measurement point, wherein:
An optical system for measuring metabolism in a body based upon an optical system for measuring metabolism in a body in which light radiating means for radiating light on the living body and light receiving means for detecting transmitted light radiated from the light radiating means and propagated in the living body are arranged on the living body and which is configured so that information in the living body is measured based upon a signal detected by the light receiving means with a substantial middle point of the light radiating means and the light receiving means as a measurement point, wherein:
An optical system for measuring metabolism in a body based upon an optical system for measuring metabolism in a body in which light radiating means for radiating light on the living body and light receiving means for detecting transmitted light radiated from the light radiating means and propagated in the living body are arranged on the living body and which is configured so that information in the living body is measured based upon a signal detected by the light receiving means with a region determined by an incident position by the light radiating means and a detection position by the light receiving means as a measurement region, wherein:
Dependencies are inferred from the claim text.