Samsung Electronics Co., Ltd.

Kye-jin Jeon

In-duk Hwang

Gil-Won Yoon

Jong-youn Lee

Kun-kook Park

Sang-Joon Han

Eun-young Choe

Hye-jeong Kim

Kyung-Ho Kim

Su-Jin Kim

Bo Li

Hong-sig Kim

Ji-deog Kim

Gil-won Yoon

Gilwon Yoon

Hye-jin Jung

Sangjoon Hahn

Haemin Cho

Yoen-joo Kim

Airat K Amerov

Hoon-jong Jwa

A method and apparatus for measuring fat thickness in a target body part are provided. The apparatus includes a light emitter emitting near infrared rays, an inner reflector having a reflecting plane outside to reflect the near infrared rays emitted by the light emitter, an outer reflector surrounding the inner reflector and having a reflecting plane inside to reflect the near infrared rays emitted by the light emitter, a light receiver receiving light reflected from the target body part in response to the near infrared rays, and a calculator calculating the fat thickness in the target body part using the light received by the light receiver.

Apparatus and method for measuring fat

An apparatus for measuring a blood component using the trans-reflectance of light irradiated to a transflective member disposed behind a test site. The apparatus includes an optical source unit irradiating light to the test site of a test subject; a transflective unit transflecting light transmitted through the test site; a detection unit detecting the transflected light; and an analysis unit analyzing the transflected light detected in the detection unit. A related method includes irradiating the light to the test site; transflecting light through the test site, detecting the transflected light, and analyzing the detected light. Blood component measurement can be easily performed without collecting blood by analyzing the transflected light with a high optical power containing much information about a blood component.

Apparatus and method for measuring blood component using light trans-reflectance

In a non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, and a method of non-invasively measuring the concentration of the body component, the non-invasive body component measuring apparatus includes a light source unit for generating light of a predetermined wavelength and for applying the light onto the measuring portion, a detection unit for detecting light reflected or transmitted by the measuring portion and for converting the detected light into an electrical signal, a signal processing unit for processing the electrical signal, and a body-apparatus interface unit for fixing a periphery of the measuring portion during measurement.

Non-invasive body component concentration measuring apparatus and method of noninvasively measuring a concentration of a body component using the same

A blood component measuring apparatus includes a fixing apparatus for fixing a body part of an examinee, the body part including a tissue to be examined, a light source portion for radiating light onto the tissue to be examined, the tissue to be examined covering the light source portion, a photodetector for detecting light passing through the tissue to be examined, the photodetector facing the light source portion, and an analyzer for analyzing the light detected by the photodetector, wherein the fixing apparatus includes first and second fixing members for fixing first and second portions of the body part, respectively, the first and second portions of the body part being connected to the tissue to be examined, wherein the first and second fixing members are operable to move depending on a location of the tissue to be examined.

Apparatus and method for measuring blood components

Provided are an apparatus and a method for determining blood sugar level without blood using dark adaptation of the optic nerve, and a computer-readable recording medium storing a computer program performing the method. The apparatus irradiates stimulating light onto the pupil of a subject. A detecting device determines when the subject responds to the light. A calculator then calculates the blood sugar based on the response to the stimulating light.

Apparatus and method for determining blood sugar level without blood using dark adaptation of optic nerve, and computer readable recording medium storing computer program performing the method

In an apparatus and method of noninvasively measuring a concentration of a blood component, the method includes (a) varying a thickness of a body part of a subject, measuring absorption spectrums at different thicknesses of the body part, obtaining a first differential absorption spectrum between the absorption spectrums measured at different thicknesses, actually measuring concentrations of the blood component, and establishing a statistical model using the first differential absorption spectrum and the actually measured concentrations; and (b) estimating the concentration of the blood component using a second differential absorption spectrum obtained with respect to the body part based on the statistical model.

Method and apparatus for noninvasively measuring a concentration of a blood component

A method of measuring a concentration of a component in a subject includes setting an intensity relationship equation between a positive-order beam and a negative-order beam with respect to a reference matter at a particular wavelength, applying a light having a first wavelength band absorbed by the component and detecting an intensity of a positive-order beam output from the subject and an intensity of a negative-order beam output from the reference matter, the positive-order beam and the negative-order beam having a second wavelength band, calculating an intensity of a positive-order beam input to the subject by applying the intensity of the negative-order beam output from the reference matter to the intensity relationship equation, and calculating absorbance using the intensity of the positive-order beam output from the subject and the intensity of the positive-order beam input to the subject and measuring a concentration of the component using the absorbance.

Method and apparatus for measuring a concentration of a component in a subject

A temperature controlled optoelectronic device includes an optoelectronic transducer having an active area, an electronic cooling device, on which the optoelectronic transducer is mounted, and a temperature sensor installed in the electronic cooling device. The temperature sensor and the electronic cooling device control a temperature of the optoelectronic transducer. A surface of an electronic cooling device directly contacts a base of the optoelectronic transducer for efficient thermal coupling. When the temperature sensor for monitoring the temperature of the optoelectronic transducer is directly attached to a substrate of the electronic cooling device, e.g., to an inside surface of a plate on which the optoelectronic transducer is mounted, the temperature of the optoelectronic transducer can be accurately sensed and adjusted to a precise target temperature.

Temperature controlled optoelectronic device

A diagnosis method and apparatus for measuring blood hemoglobin concentration, oxygen saturation, pulse rate, respiration rate, or degree of aging of blood vessels using light includes an input/output unit for receiving a command for measurement from a user and for providing information on the result of a measurement to the user; a control unit for receiving the command for measurement from the input/output unit and for generating a control signal; a light generating unit for generating at least two light beams for measurement according to the control signal; a light receiving unit for receiving the light beams transmitted through an object that is subject to measurement and for converting the received light beams into electrical signals; and a data processing unit for processing the electrical signals received from the light receiving unit and for outputting information on the result of a predetermined measurement.

Diagnostic method and apparatus using light

A method of estimating a pure spectrum and a concentration of each component constituting n sample mixtures, in which p kinds of components are mixed, includes (a) performing a principal component analysis of the spectra of the n mixtures, which are measured using m wavelengths, to represent the spectra of the n mixtures as factors and scores of the respective factors, wherein n, p, and m are integers and m&#x3e;p, and (b) performing an independent component analysis of the scores obtained in (a) to estimate the pure spectra and the concentrations of the respective components.

Method and apparatus of estimating pure spectra and a concentration of a mixture

An apparatus and method for non-invasively measuring bio-fluid concentrations using photoacoustic spectroscopy includes a light source for irradiating an incident light having a predetermined wavelength band to be absorbed into a targeted component of a living body, an acoustic signal generator for generating a first acoustic signal having a similar frequency band as a photoacoustic signal that is generated when the incident light is absorbed into the targeted component, a ultrasonic translator for detecting the photoacoustic signal and a second acoustic signal that is a modulated signal of the first acoustic signal, a controller for generating the first acoustic signal in a predetermined frequency band, a light detector for detecting an intensity of the incident light, and a calculator capable of calculating a signal compensation value based on the incident light, the photoacoustic signal, and the coefficient of sound wave transmission, and capable of computing a concentration of the targeted component.

Apparatus and method for non-invasively measuring bio-fluid concentrations using photoacoustic spectroscopy

A method and apparatus for noninvasively monitoring hemoglobin concentration and oxygen saturation, wherein the method includes selecting at least two wavelengths from a region of wavelengths in which an extinction coefficient for water is smaller that for hemoglobin, the at least two wavelengths including at least two isobestic wavelengths; sequentially radiating incident light beams having the selected wavelengths onto a predetermined site of a body which includes a blood vessel; receiving, at another site of the body, light beams sequentially transmitted through the predetermined site and converting the received light beams into electrical signals; calculating the light attenuation variation caused by pulses of blood for the respective wavelengths from the electrical signals; obtaining at least one ratio of the light attenuation variation between the selected wavelengths; and calculating the hemoglobin concentration C in blood using the calculated at least one ratio of the light attenuation variation between the wavelengths.

Method and apparatus for noninvasively monitoring hemoglobin concentration and oxygen saturation

A method and device for noninvasive measurement of blood component concentrations utilizes pulsed polychromatic light source emitting, light in the near infrared range 800-1850 nm. The light is back scattered from or transmitted through a part of a patient's body. Back scattered light from blood-containing tissues and blood vessels has information on blood component concentrations. That light is collected to avoid the surface reflection from the skin surface and to minimize the effects of changes in the scattering background. The concentrations of blood components are calculated from the spectral analysis based on selected wavelengths by a defined algorithm. A microprocessor calculates and determines the blood component concentrations by comparing a ratio with a calibration curve stored in a memory of the microprocessor. The calculated concentration values are displayed on a display.

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Suwon-si, South Korea

Kye-jin Jeon