US 12,144,618 B2
Device and method for detecting sign parameter
Hui Du, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/416,326
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Dec. 28, 2020, PCT No. PCT/CN2020/140196
§ 371(c)(1), (2) Date Jun. 18, 2021,
PCT Pub. No. WO2021/169551, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 202010111869.9 (CN), filed on Feb. 24, 2020.
Prior Publication US 2022/0400982 A1, Dec. 22, 2022
Int. Cl. A61B 5/1455 (2006.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01)
CPC A61B 5/1455 (2013.01) [A61B 5/002 (2013.01); A61B 5/14546 (2013.01); A61B 5/4848 (2013.01); A61B 5/7203 (2013.01); A61B 5/7235 (2013.01); A61B 2560/0214 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A device for detecting a sign parameter, comprising:
a luminous source configured to emit light, capable of being absorbed by a substance for characterizing a vital sign of a human body in the human body, to irradiate a human skin tissue for a preset time, wherein the substance for characterizing the vital sign of the human body comprises triacylglycerol and carbohydrates;
a photoelectric sensor configured to:
detect absorbance of the human body to the light emitted by the luminous source within the preset time, and
send a detection result to a processor;
the processor configured to:
conduct de-noising processing on the detection result sent by the photoelectric sensor;
extract waveform characteristic parameters in the detection result after being de-noising processed;
establish a fitting model by a partial least squares method according to the extracted waveform characteristic parameters;
calculate substance concentrations of the triacylglycerol and the carbohydrates in the human body; and
store the substance concentrations of the triacylglycerol and the carbohydrates obtained from each detection; and
an evaluating system configured to:
obtain a current change trend of the triacylglycerol and the carbohydrates by comparing the substance concentrations of the triacylglycerol and the carbohydrates currently detected and stored in the processor with substance concentrations of the triacylglycerol and the carbohydrates previously stored and set as initial values; and
evaluate a weight loss effect according to the current change trend of the triacylglycerol and the carbohydrates;
wherein when both the triacylglycerol and the carbohydrates show a decreasing trend starting from the initial values, it is determined that weight loss is effective.