US 11,986,295 B1
Apparatus for measuring blood glucose continuously based on Raman signal
Miyeon Jue, Seoul (KR); Young Kyu Kim, Seoul (KR); and Aram Hong, Seoul (KR)
Assigned to Apollon Inc., Seoul (KR)
Filed by Apollon Inc., Seoul (KR)
Filed on Aug. 24, 2023, as Appl. No. 18/455,492.
Claims priority of application No. 10-2023-0069417 (KR), filed on May 30, 2023.
Int. Cl. A61B 5/1455 (2006.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01); G01N 21/65 (2006.01); G01N 33/49 (2006.01)
CPC A61B 5/14532 (2013.01) [A61B 5/0002 (2013.01); A61B 5/1455 (2013.01); G01N 21/65 (2013.01); G01N 33/49 (2013.01); A61B 5/6801 (2013.01); G01N 2201/061 (2013.01); G01N 2201/127 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A blood glucose level measuring apparatus utilizing a Raman spectrum, comprising:
a housing defining an interior accommodation space;
a light source that is disposed in the housing and irradiates light to a subject;
a light receiving part disposed in the housing, and configured to receive reflected and scattered light from the subject and acquire a Raman spectrum; and
a processor disposed in the housing, and configured to extract information on glucose, proteins, and fats of the subject, based on different ranges of Raman spectrum for glucose, proteins, and fats of the subject, through peak area values in each range,
wherein the light receiving part includes:
a filter array including a plurality of optical filters configured to transmit lights of different wavelength bands or a linear variable filter, of which wavelength bands of lights that pass through areas are different;
a filter feeder that feeds the filter array or the linear variable filter in one direction; and
a light detector that receives the light that passed through the filter array or the linear variable filter and converts the light into an electrical signal,
wherein the processor is configured to:
perform a calibration by controlling the light source and the light receiving part when the blood glucose level measuring apparatus starts to be driven or is mounted on a body of the subject, and
wherein the processor is configured to, when the calibration is performed:
control the light source such that light is output at a specific output for a specific time period; and
set an amount and an exposure time period of light of the light source when a blood glucose level is measured with reference to a peak corresponding to a specific Raman shift of a Raman spectrum acquired through the light receiving part for the specific time period.