US 11,723,596 B2
Healthcare apparatus and operating method thereof
Ka Ram Choi, Seoul (KR); Hyo Sun Hwang, Seoul (KR); Jin Young Park, Hwaseong-si (KR); Jae Wook Shim, Yongin-si (KR); So Young Lee, Daejeon (KR); Sang Kon Bae, Seongnam-si (KR); and Eui Seok Shin, Yongin-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Nov. 9, 2021, as Appl. No. 17/522,492.
Application 17/522,492 is a continuation of application No. 16/200,765, filed on Nov. 27, 2018, granted, now 11,197,635.
Claims priority of application No. 10-2017-0164566 (KR), filed on Dec. 1, 2017.
Prior Publication US 2022/0061755 A1, Mar. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 5/026 (2006.01); A61B 5/145 (2006.01); A61B 5/1455 (2006.01); A61B 5/0205 (2006.01)
CPC A61B 5/4866 (2013.01) [A61B 5/0261 (2013.01); A61B 5/14532 (2013.01); A61B 5/681 (2013.01); A61B 5/0205 (2013.01); A61B 5/1455 (2013.01); A61B 5/7203 (2013.01); A61B 5/7264 (2013.01); A61B 2562/0219 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A healthcare apparatus, comprising:
a plurality of light sources configured to emit light of different wavelengths onto an object;
a light detector configured to measure an optical signal of each of the wavelengths by receiving light reflected or scattered from the object; and
a processor configured to:
extract representative waveforms of each of the wavelengths from the optical signal of each of the wavelengths;
generate an integrated representative waveform by integrating the representative waveforms of each of the wavelengths, and extract a feature from the integrated representative waveform;
obtain a blood glucose level based on a blood glucose level calculation model, which defines a relationship between the feature and the blood glucose level, and obtain a blood flow index based on a blood flow index calculation model which defines a relationship between the feature and the blood flow index; and
estimate at least one from among dietary information and dietary metabolism state information abased on change in a time interval between a peak point of the blood glucose level and a peak point of the blood flow index after ingestion of a food by the object.