Apparatus and method for estimating analyte concentration, and apparatus and method for generating analyte concentration estimation model
AssigneeSamsung Electronics Co., Ltd.
InventorsYun S Park, Sung Hyun Nam, Woo Chang Lee, Ho Jun Chang
Life of this patent
Estimating the term…
Abstract
A apparatus for estimating concentration may include: a spectrum obtainer configured to obtain Raman spectra of an object; and a processor configured to extract, from the Raman spectra, at least one analyte spectrum related to an analyte and at least one non-analyte spectrum related to a biological component other than the analyte, and estimate concentration of the analyte based on a first area under a curve of the at least one analyte spectrum and a second area under a curve of the at least one non-analyte spectrum.
Claims20
A wearable device for estimating concentration, the wearable device comprising:
- a spectrometer configured to obtain Raman spectra of an object;
- a memory storing a concentration estimation model that is generated by linear regression analysis using a first reference area under a curve of a reference glucose spectrum, a second reference area under a curve of a reference non-glucose spectrum, and a corresponding glucose level;
- a processor configured to:
- when the wearable device is worn by the object, extract, from the Raman spectra, at least one glucose spectrum related to glucose, and at least one non-glucose spectrum related to a biological component other than glucose, and
- estimate concentration of the glucose by retrieving the concentration estimation model from the memory and applying a first area under a curve of the at least one glucose spectrum and a second area under a curve of the at least one non-glucose spectrum to the concentration estimation model;
- and
- a display configured to display information of the concentration of the glucose.
A wearable device for generating a concentration estimation model, the wearable device comprising:
- a spectrometer configured to obtain, as learning data, Raman spectra of an object and concentration information of glucose corresponding to the Raman spectra;
- and
- a processor configured to:
- when the wearable device is worn by the object, extract at least one glucose spectrum related to the glucose and at least one non-glucose spectrum related to a biological component other than the glucose from the Raman spectra,
- generate the concentration estimation model by linear regression analysis based on a first area under a curve of the at least one glucose spectrum, a second area under a curve of the at least one non-glucose spectrum, and the concentration information of the glucose;
- storing the concentration estimation model in a memory of the wearable device;
- and
- in response to a user request for measuring a blood glucose level being received by the wearable device, loading the concentration estimation model from the memory to provide the concentration estimation model.
A method for estimating concentration via a wearable device, the method comprising:
- obtaining Raman spectra of an object;
- while the wearable device is worn by the object, extracting, from the Raman spectra, at least one glucose spectrum related to glucose and at least one non-glucose spectrum related to a biological component other than the glucose;
- removing a background signal from the at least one glucose spectrum and the at least one non-glucose spectrum;
- calculating a first area under a curve of the at least one glucose spectrum, from which the background signal is removed, and a second area under a curve of the at least one non-glucose spectrum from which the background signal is removed;
- retrieving a concentration estimation model that is generated by linear regression analysis using a first reference area under a curve of a reference glucose spectrum, a second reference area under a curve of a reference non-glucose spectrum, and a corresponding concentration of the glucose;
- estimating a concentration of the glucose by applying the first area and the second area to the concentration estimation model;
- and
- displaying information of the concentration of the glucose on the wearable device.
Dependencies are inferred from the claim text.