Abstract: A body fluid analysis device that irradiates a body fluid in a tube having translucency with light and analyzes the body fluid on the basis of light having passed through the tube is adapted to include: a base; an attachment that is attached to the base 1 so that the tube is pinched in its radial direction between the attachment and the base; a light emitting element that is provided to the base or the attachment; and a light receiving element that is provided to the base or the attachment, in which in a state where the attachment is attached to the base, between the base and the attachment, the light emitting element and the light receiving element are arranged so as to pinch the tube in the radial direction, or both of the light emitting element and the light receiving element are arranged in the base or the attachment.

Abstract: A body fluid analysis device includes a light source, a detector, a normalization part, and a calculation part. The light source is configured to emit light at a first wavelength and light at a second wavelength different from each other to a body fluid. The detector is configured to receive light emitted from the light source and transmitted through the body fluid or light reflected by the body fluid, and is configured to detect intensity of the light. The normalization part is configured to calculate a ratio of an intensity of light emitted at the second wavelength to an intensity of light emitted at the first wavelength, both of which are detected by the detector. The calculation part is configured to calculate a concentration of a predetermined component included in the body fluid on the basis of the ratio calculated by the normalization part.

Abstract: A sensor module includes a light emitter that emits light beams including near-infrared light beams towards a subject; a light receiver that receives light beams having passed through the subject; and a controller that estimates biological information based on signals output from the light receiver. The light emitter includes a plurality of light emitting elements that emit near-infrared light beams having central wavelengths different from each other. The light emitter produces sets of light emissions by causing the plurality of light emitting elements to sequentially and intermittently emit the near-infrared light beams. In given two consecutive sets of light emissions produced by the light emitter, a second non-light-emission period of time T4 is longer than a first non-light-emission period of time T2. The controller estimates the biological information in a processing period of time T41 that is set in correspondence with the second non-light-emission period of time T4.

Abstract: Disclosed is an intravital observation device that has a simple structure and that can observe a foreign material and both blood vessels of an artery and a vein inside a living body without requiring an angiographic agent, X-rays, or harming the body. The intravital observation device comprises a light source that irradiates light having a wavelength peak in a wavelength region of 800 to 1000 nm onto the living body and an imaging device that outputs an image data obtained by receiving the light that has passed through the living body. The imaging device is a digital camera whose minimum detection light amount per output at a time when receiving the light of 0.4 to 10 ?W is less than or equal to 0.055 ?W/bit.

Abstract: To provide a bone cutting device capable of selectively cutting only a bone easily and quickly, the device of the present invention is adapted to cut a bone by irradiating with a laser beam and includes a light source for emitting a laser beam of 1000 to 1500 nm with a peak output of 10 to 70 W/cm2.

Abstract: Disclosed is an intravital observation device that has a simple structure and that can observe a foreign material and both blood vessels of an artery and a vein inside a living body without requiring an angiographic agent, X-rays, or harming the body. The intravital observation device comprises a light source that irradiates light having a wavelength peak in a wavelength region of 800 to 1000 nm onto the living body and an imaging device that outputs an image data obtained by receiving the light that has passed through the living body. The imaging device is a digital camera whose minimum detection light amount per output at a time when receiving the light of 0.4 to 10 ?W is less than or equal to 0.055 ?W/bit.

Abstract: To provide a bone cutting device capable of selectively cutting only a bone easily and quickly, the device of the present invention is adapted to cut a bone by irradiating with a laser beam and includes a light source for emitting a laser beam of 1000 to 1500 nm with a peak output of 10 to 70 W/cm2.