Blood lipid concentration measurement device and method for operating same

A blood lipid concentration measurement device comprising:

• an irradiation portion configured to radiate irradiation light having a wavelength of 900 nm or less at a predetermined light intensity toward an inside of a living body from an outside of the living body;
• a light intensity detection portion configured to detect an intensity of light emitted from the living body to measure a radiation-detection distance dependent attenuation of a light intensity of the radiated irradiation light, the light intensity detection portion being disposed at a predetermined interval from or continuously to a light irradiation position of the irradiation portion;
• a scattering coefficient calculation portion configured to calculate a scattering coefficient in the living body on a basis of the light intensity detected by the light intensity detection portion;
• and
• a lipid concentration calculation portion configured to calculate a variation of only a concentration of at least one of CM and a CM remnant in the blood on a basis of a variation of the scattering coefficient.

A method for operating a blood particle concentration measurement device comprising:

• an irradiation step of radiating irradiation light having a first wavelength and irradiation light having a second wavelength shorter than the first wavelength at predetermined light intensities toward an inside of a living body from an outside of the living body;
• a light intensity detection step of detecting an intensity of first light and an intensity of second light both emitted from the living body to measure a radiation-detection distance dependent attenuation of light intensities of the radiated irradiation light having the first wavelength and the radiated irradiation light having the second wavelength at a position with a predetermined interval from or continuously to a light irradiation position in the irradiation step;
• a scattering coefficient calculation step of calculating a first scattering coefficient and a second scattering coefficient in the living body respectively on a basis of the first light intensity and the second light intensity detected in the light intensity detection step;
• and
• a particle concentration calculation step of calculating a variation of a concentration of a second particle group in the blood on a basis of a variation of the second scattering coefficient and calculating a variation of a concentration of a first particle group including a particle whose particle diameter is equal to or less than that of a particle included in the second particle group on a basis of a variation of the first scattering coefficient.

A method for operating a blood lipid concentration measurement device comprising:

• an irradiation step of radiating irradiation light having a wavelength of 900 nm or less at a predetermined light intensity toward an inside of a living body from an outside of the living body;
• a light intensity detection step of detecting an intensity of light emitted from the living body to measure a radiation-detection distance dependent attenuation of a light intensity of the radiated irradiation light at a position with a predetermined interval from or continuously to a light irradiation position in the irradiation step;
• a scattering coefficient calculation step of calculating a scattering coefficient in the living body on a basis of the light intensity detected in the light intensity detection step;
• and
• a lipid concentration calculation step of calculating a variation of a concentration of at least one of CM and a CM remnant in the blood on a basis of a variation of the scattering coefficient.

A blood particle concentration measurement device configured to be communicatively connected to a user device, the user device including:

• an irradiation portion configured to radiate irradiation light having a first wavelength and irradiation light having a second wavelength shorter than the first wavelength at predetermined light intensities toward an inside of a living body from an outside of the living body;
• a light intensity detection portion configured to detect an intensity of first light and an intensity of second light both emitted from the living body to measure a radiation-detection distance dependent attenuation of light intensities of the radiated irradiation light having the first wavelength and the radiated irradiation light having the second wavelength, the light intensity detection portion being disposed at a predetermined interval from or continuously to a light irradiation position of the irradiation portion;
• and a communication portion configured to send the first light intensity and the second light intensity detected by the light intensity detection portion,
• the blood particle concentration measurement device comprising:
• a scattering coefficient calculation portion configured to calculate a first scattering coefficient and a second scattering coefficient in the living body respectively on a basis of the first light intensity and the second light intensity sent from the user device;
• and
• a particle concentration calculation portion configured to calculate a variation of a concentration of a second particle group in the blood on a basis of a variation of the second scattering coefficient and calculate a variation of a concentration of a first particle group including a particle whose particle diameter is equal to or less than that of a particle included in the second particle group on a basis of a variation of the first scattering coefficient.

A blood lipid concentration measurement device configured to be communicatively connected to a user device, the user device including:

• an irradiation portion configured to radiate irradiation light having a wavelength of 900 nm or less at a predetermined light intensity toward an inside of a living body from an outside of the living body;
• a light intensity detection portion configured to detect an intensity of light emitted from the living body to measure a radiation-detection distance dependent attenuation of a light intensity of the radiated irradiation light, the light intensity detection portion being disposed at a predetermined interval from or continuously to a light irradiation position of the irradiation portion;
• and a communication portion configured to send the light intensity detected by the light intensity detection portion,
• the blood lipid concentration measurement device comprising:
• a scattering coefficient calculation portion configured to calculate a scattering coefficient in the living body on a basis of the light intensity sent from the user device;
• and
• a lipid concentration calculation portion configured to calculate a variation of only a concentration of at least one of CM and a CM remnant in the blood on a basis of a variation of the scattering coefficient.