Abstract: A dental apparatus includes a light irradiation unit for emitting a light to irradiate an oral cavity, an image capturing unit for image-capturing the oral cavity light irradiated by the light irradiation unit, and an output unit for outputting data for highlighting and displaying at least one of a plaque site and a calculus site on an image of the oral cavity based on an image captured result by the image capturing unit.

Abstract: According to an embodiment of the present application, there is provided a medical apparatus, including: a light source unit configured to be capable of emitting light including at least natural emission light, the light being guided into an optical probe; a first detecting unit configured to detect an intensity of light exiting from the light source unit; and a calculation unit configured to calculate to approximate to a non-linear function based on an intensity of light detected by the first detecting unit for calibration of the optical probe.

Abstract: There is provided a photodynamic diagnosis apparatus including a light source for generating a light pulse having a time width shorter than a fluorescence lifetime of a photosensitizer, and a detector for measuring a time change waveform of the fluorescence to the light pulse.

Abstract: A dental apparatus includes a light irradiation unit for emitting a light to irradiate an oral cavity, an image capturing unit for image-capturing the oral cavity light irradiated by the light irradiation unit, and an output unit for outputting data for highlighting and displaying at least one of a plaque site and a calculus site on an image of the oral cavity based on an image captured result by the image capturing unit.

Abstract: A photodynamic therapy apparatus as an estimating apparatus is an apparatus for irradiating a tissue having absorbed photo-sensitive pharmaceutical, the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence, with the excitation light emitted from a tip portion of a laser catheter, including a connector, a light source, and a light detection unit. The laser catheter is capable of being attached to and detached from the connector. The light source outputs the excitation light to the laser catheter via the connector. The light detection unit detects intensity or a spectrum of the fluorescence, the fluorescence being entered from the laser catheter via the connector, to estimate whether the tissue has changed because of reaction between the excitation light emitted from the tip portion of the laser catheter and the photo-sensitive pharmaceutical absorbed in the tissue.

Abstract: A dental apparatus includes a light irradiation unit for emitting a light to irradiate an oral cavity, an image capturing unit for image-capturing the oral cavity light irradiated by the light irradiation unit, and an output unit for outputting data for highlighting and displaying at least one of a plaque site and a calculus site on an image of the oral cavity based on an image captured result by the image capturing unit.

Abstract: There is provided a photodynamic diagnosis apparatus including a light source for generating a light pulse having a time width shorter than a fluorescence lifetime of a photosensitizer, and a detector for measuring a time change waveform of the fluorescence to the light pulse.

Abstract: A dental apparatus includes a light irradiation unit for emitting a light to irradiate an oral cavity, an image capturing unit for image-capturing the oral cavity light irradiated by the light irradiation unit, and an output unit for outputting data for highlighting and displaying at least one of a plaque site and a calculus site on an image of the oral cavity based on an image captured result by the image capturing unit.

Abstract: There is provided a dental apparatus including a light source for emitting a light to irradiate at least one of a tooth, a gum, a plaque and a calculus of an oral cavity, a light detector for detecting fluorescence from the oral cavity emitted to the light irradiated from the light source, and a control unit for outputting first data for visualizing a temporal change in a fluorescence intensity based on the fluorescence detected by the light detector. Also, there is provided a calculation method including irradiating an excited light, detecting a fluorescence intensity, and calculating a temporal change in the fluorescence intensity in a depth direction.

Abstract: To provide a laser therapy apparatus that is capable of determining a contact state between a tip portion of a laser catheter and a tissue, which includes a buried state of the tip portion in the tissue, a laser therapy system, and a determination method.

Abstract: [Object] To provide a calculation apparatus and a calculation method capable of calculating pharmaceutical concentration in a tissue in real time. [Solving Means] A photodynamic therapy apparatus as a calculation apparatus is an apparatus for irradiating a tissue having absorbed photo-sensitive pharmaceutical, the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence, with the excitation light emitted from a tip portion of a laser catheter, including a connector, a light source, and a light detection unit. The laser catheter is capable of being attached/detached to/from the connector. The light source outputs the excitation light to the laser catheter via the connector. The light detection unit detects intensity of the fluorescence, the fluorescence being entered from the laser catheter via the connector, to calculate concentration of the photo-sensitive pharmaceutical in a tissue, the tip portion of the laser catheter contacting the tissue.

Abstract: A photodynamic therapy apparatus as a determining apparatus is the photodynamic therapy apparatus for irradiating a tissue having absorbed photo-sensitive pharmaceutical, the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence, or a tissue absorbing the excitation light and emitting fluorescence, with the excitation light emitted from a tip portion of a laser catheter, including a connector, a light source, and a light detection unit. The laser catheter is capable of being attached/detached to/from the connector. The light source outputs the excitation light to the laser catheter via the connector. The light detection unit detects intensity or a spectrum of the fluorescence, the fluorescence being entered from the laser catheter via the connector, to determine whether the tip portion of the laser catheter contacts the tissue or not.

Abstract: A photodynamic therapy apparatus as an estimating apparatus is an apparatus for irradiating a tissue having absorbed photo-sensitive pharmaceutical, the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence, with the excitation light emitted from a tip portion of a laser the catheter, including a connector, a light source, and a light detection unit. The laser the catheter is capable of being attached/detached to/from the connector. The light source outputs the excitation light to the laser the catheter via the connector. The light detection unit detects intensity or a spectrum of the fluorescence, the fluorescence being entered from the laser the catheter via the connector, to estimate whether the tissue has changed because of reaction between the excitation light emitted from the tip portion of the laser the catheter and the photo-sensitive pharmaceutical absorbed in the tissue.