Abstract: In a measurement target model representing a measurement target, this measurement sensitivity calculation device uses, as measurement sensitivity, an optical path length difference between a first optical path length indicating the length of an optical path through which light emitted from a light emitter to the measurement target travels before being received by a first light receiver spaced apart by a first distance from the light emitter and a second optical path length indicating the length of an optical path through which light emitted from the light emitter travels before being received by a second light receiver spaced apart by a second distance from the light emitter, calculates the measurement sensitivity for each depth of the measurement target, and outputs the measurement sensitivity calculated for each depth of the measurement target.

Abstract: A living body information measurement device includes an illuminator that irradiates a living body with illumination light; an imaging unit that images the living body; and a computation unit that computes living body information on the basis of a difference between pixel data in an irradiation area being an area of the living body irradiated with the illumination light and pixel data in a non-irradiation area being an area of the living body not irradiated with the illumination light, included in pixel data associated with each position in an image generated by the imaging of the imaging unit.

Abstract: A living body information measurement device includes an illuminator that irradiates a living body with illumination light; an imaging unit that images the living body; and a computation unit that computes living body information on the basis of a difference between pixel data in an irradiation area being an area of the living body irradiated with the illumination light and pixel data in a non-irradiation area being an area of the living body not irradiated with the illumination light, included in pixel data associated with each position in an image generated by the imaging of the imaging unit.

Abstract: A device treats carbon monoxide poisoning and includes a light emitter that emits light having a wavelength of 600 to 750 nm. A catheter includes a catheter body that has a distal end portion formed of a light-transmissive material and that includes a plurality of lumens; a light emitter that emits light having a wavelength of 600 to 750 nm to allow the light to exit through a first lumen from the distal end portion of the catheter body; a balloon that is disposed around a circumferential surface of the distal end portion, that is in communication with a second lumen, and that guides the distal end portion to downstream blood flow in an inflated state; and a pressure sensor that is disposed at the distal end of the distal end portion and that is connected to a cable inserted through a third lumen.

Abstract: An accurate measurement can be made of the light absorbance of deep layer tissue such as in a human body or a fruit. The thickness of fat is computed. A first specific distance and a second specific distance corresponding to the computed fat thickness are computed based a predetermined relationship between the fat thickness, the first specific distance, and measurement sensitivity of a surface layer and measurement sensitivity of a deep layer when light is received at a position the first specific distance away from a light emitting means. A third specific distance and a fourth specific distance are computed corresponding to the computed fat thickness based on a predetermined relationship between the fat thickness, the third specific distance and a measurement sensitivity of an intervening layer and a measurement sensitivity of the deep layer when light is received at a position the third specific distance away from the light emitting means.

Abstract: An accurate measurement can be made of the light absorbance of deep layer tissue such as in a human body or a fruit. The thickness of fat is computed. A first specific distance and a second specific distance corresponding to the computed fat thickness are computed based a predetermined relationship between the fat thickness, the first specific distance, and measurement sensitivity of a surface layer and measurement sensitivity of a deep layer when light is received at a position the first specific distance away from a light emitting means. A third specific distance and a fourth specific distance are computed corresponding to the computed fat thickness based on a predetermined relationship between the fat thickness, the third specific distance and a measurement sensitivity of an intervening layer and a measurement sensitivity of the deep layer when light is received at a position the third specific distance away from the light emitting means.

Abstract: The present invention provides an optical measuring apparatus and an optical measuring method for being able to correct the influence of a superficial tissue to be able to accurately measure a degree of light absorption of a deep layer tissue such as a human body and fruits, and a storage medium that stores an optical measuring program. The optical measuring apparatus includes a probe, and the probe includes one light emitting diode and two photodiodes. In a configuration of the optical measuring apparatus, one of the photodiodes receives light which is emitted from the light emitting diode and transmitted through a superficial layer and a deep layer of a tissue, and the other photodiode receives light having a deep layer transmission distance different from that of the light received by one of the photodiodes. The light received by the other photodiode is also transmitted through the superficial layer and deep layer of the tissue.

Abstract: The present invention provides an optical measuring apparatus and an optical measuring method for being able to correct the influence of a superficial tissue to be able to accurately measure a degree of light absorption of a deep layer tissue such as a human body and fruits, and a storage medium that stores an optical measuring program. The optical measuring apparatus includes a probe, and the probe includes one light emitting diode and two photodiodes. In a configuration of the optical measuring apparatus, one of the photodiodes receives light which is emitted from the light emitting diode and transmitted through a superficial layer and a deep layer of a tissue, and the other photodiode receives light having a deep layer transmission distance different from that of the light received by one of the photodiodes. The light received by the other photodiode is also transmitted through the superficial layer and deep layer of the tissue.