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A signal transmitter and ppg information collection equipment

A technology of signal transmitter and light emitting device, applied in sensor, medical science, diagnosis, etc., can solve the problem of delaying treatment time and so on

Active Publication Date: 2020-10-16
NANJING UNIV OF POSTS & TELECOMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is necessary to use a specific structure to collect signals from these weak parts of fat, which can be achieved through human active intervention.
In the early stage of the disease, many patients have no abnormal reaction in the human body, and often do not actively collect physiological signals, thus delaying the treatment time

Method used

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  • A signal transmitter and ppg information collection equipment
  • A signal transmitter and ppg information collection equipment
  • A signal transmitter and ppg information collection equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] figure 1 A schematic structural diagram of a signal transmitter provided by Embodiment 1 of the present invention. The signal transmitter includes a driving module 11 and a light emitting device 12 , the output end of the driving module 11 is connected to the input end of the light emitting device 12 .

[0020] The driving module 11 outputs current to the light-emitting device 12; the light-emitting device 12 emits a light signal to the human skin at a preset incident angle, so that the light signal enters the blood vessel of the human body and carries PPG information to exit the human skin, wherein the The optical signal corresponds to the output current of the driving module 11, and the preset incident angle is greater than 13.8° and less than 15.5°.

[0021] Through the optical signal transmission model in the fat part based on the theory of physical optics and related experiments, it is found that the incident angle in this range will reduce the absorption and atte...

Embodiment 2

[0034] figure 2 It is the PPG information collection device provided by Embodiment 2 of the present invention. The PPG information collection device 30 includes a signal transmitter 10 and a signal receiver 20;

[0035] The signal transmitter 10 includes a driving module 11 and a light emitting device 12, the output end of the driving module is connected to the input end of the light emitting device. The driving module 11 outputs current to the light-emitting device 12; the light-emitting device 12 emits a light signal to the human skin at a preset incident angle, so that the light signal enters the blood vessel of the human body and carries PPG information to exit the human skin, wherein the The optical signal corresponds to the output current of the driving module 11, and the preset incident angle is greater than 13.8° and less than 15.5°.

[0036] The signal receiver 20 includes a light receiving device 21 and a signal processing module 20 , an output end of the light re...

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PUM

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Abstract

The invention discloses a signal transmitter. The signal transmitter comprises a drive module and a light emitting device; the output end of the drive module is connected with the input end of the light emitting device; the drive module outputs current to the light emitting device; the light emitting device emits a light signal to the human skin by a preset incident angle, and the light signal enters a human blood vessel and then carries PPG information to be emitted from the human skin, wherein the light signal corresponds to output current of the drive module, and the preset incident angle is larger than 13.8 degrees and smaller than 15.5 degrees. The invention further provides PPG information collection equipment. Accordingly, the purpose that the PPG information can be collected on the thick fat portion of the human body is achieved, people can collect the PPG information in an unaware state, and anomalies of physiological features are found as soon as possible.

Description

technical field [0001] The embodiment of the present invention relates to the field of physiological signal detection, in particular to a signal transmitter and a PPG information collection device. Background technique [0002] Nowadays, people pay more and more attention to their own health status, and the physiological parameters of the human body such as heart rate and blood oxygen saturation can reflect the health status of the human body. The photoplethysmographic information (PPG information) can be used to obtain information such as the heart rate and blood oxygen saturation of the human body. The principle is: when the light beam enters the human body from the skin, it will be refracted and reflected in the fat layer and blood vessels of the human body. The absorption of light by muscles and fat layers remains constant throughout the blood circulation, while the blood volume changes pulsatingly under the action of the heart. When the heart contracts, the peripheral b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/0205A61B5/1455
CPCA61B5/0059A61B5/0205A61B5/02416A61B5/14551A61B2560/06
Inventor 陈小惠王悠苒孙斌王沛
Owner NANJING UNIV OF POSTS & TELECOMM