Vital sign monitoring device and method based on multiple optical fiber sensing assemblies

A technology of optical fiber sensing and vital signs, applied in applications, sensors, measuring pulse rate/heart rate, etc., can solve the problem of inability to accurately monitor the user's sleeping position and bed position in real time, limited range of a single optical fiber sensing component, and inaccurate vital sign data. Too accurate and other problems, to achieve the effect of easy algorithm calculation, simple structure and high sensitivity

Pending Publication Date: 2021-11-09
武汉凯锐普医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, current devices generally suffer from high noise, low signal-to-noise ratio, and limited range of single-piece fiber optic sensing components used to monitor vital signs
When the user uses it, very weak body movements will lead to loud noises, resulting in inaccurate vital sign data monitoring
In addition, the vital signs monitoring devices based on a single optical fiber sensing component are mostly used to monitor the breathing rate and heart rate in the vital signs, which cannot accurately monitor the user's sleeping position and bed position in real time, and are usually used for a single user, and the scope of use is limited

Method used

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  • Vital sign monitoring device and method based on multiple optical fiber sensing assemblies
  • Vital sign monitoring device and method based on multiple optical fiber sensing assemblies
  • Vital sign monitoring device and method based on multiple optical fiber sensing assemblies

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Embodiment 1, detecting the user's sleeping position and bed position information.

[0061] A plurality of optical fiber sensing components 2 are respectively fixed on the mattress, and a layout diagram of the mattress and the optical fiber sensing component 2 is established. Specifically, in this process, each optical fiber sensing component 2 is numbered and coordinates are divided, such as image 3 shown.

[0062] When a person lies on the mattress, it will squeeze the sensing fiber 22 corresponding to the optical fiber sensing component 2 in the mattress, and the optical signal transmitted in the sensing fiber 22 will be modulated due to loss. The vital sign signal extraction and analysis module 4 Detect the output power of each optical fiber sensing component 2, and the output power is less than the threshold P 0 The optical fiber sensing component 2 of the optical fiber sensing component 2 performs color difference display on the floor plan, and by observing the...

Embodiment 2

[0066] Embodiment 2, detecting the user's flipping direction.

[0067] If the user moves, the vital sign signal extraction and analysis module 4 detects the short-term energy of each optical fiber sensing component 2, and the user's flip direction is that the short-term energy is higher than the threshold P h falls below the threshold P l The corresponding optical fiber sensing component 2 flips to short-term energy by being lower than the threshold P l rises above the threshold P h The corresponding optical fiber sensing component 2.

[0068] Real-time monitoring of the user's sleeping posture, bed position and whether it is turned over, etc., restores the user's sleeping situation throughout the night, and facilitates better sleep quality analysis. Specifically, it can also be used for the monitoring of infants and young children.

Embodiment 3

[0069] Embodiment 3, detecting heart rate and respiration rate.

[0070] Specifically, such as Figure 4 As shown, the vital sign signal extraction and analysis module 4 detects heart rate and respiration rate in the following manner:

[0071] In this embodiment, there are twelve optical fiber sensing components 2, so when a person lies on the mattress, the twelve optical fiber sensing components 2 simultaneously measure signals containing vital sign information from different parts of the person, totaling Twelve signals are generated.

[0072] After smoothing and filtering the signal output by each fiber sensing component 2, the energy E of the signal output by each fiber sensing component 2 is calculated separately i and the autocorrelation coefficient R i , will simultaneously satisfy the energy E i﹥ Threshold E 0 and the autocorrelation coefficient R i﹥ Threshold R 0 The signal is judged as a signal with relatively good signal quality, otherwise it is judged as a si...

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Abstract

The invention proposes a vital sign monitoring device and method based on multiple optical fiber sensing assemblies. According to the invention, the multiple optical fiber sensing assemblies are arranged to form the vital sign monitoring device, and on the basis of effectively increasing a detection range, the optical fiber sensing assemblies are smaller in specification and easy to transport, store and carry; an effective detection range can be expanded to the whole lying area when a user sleeps and has a rest, so that the user can select any direction and any area to have a rest when having a rest, and the user is more convenient and non-inductive to use; a sleeping posture of the user, a position of the user in the bed and whether overturning exists or not can be monitored in real time, and sleeping quality analysis can be better conducted; multiple BCG signals can be measured at the same time, the multiple signals are processed, noise can be effectively reduced, algorithm calculation is facilitated, and therefore more accurate vital sign data are obtained; vital sign data of two persons can be monitored, and the device and method are more suitable for common families.

Description

technical field [0001] The invention relates to the field of monitoring human vital signs, in particular to a vital sign monitoring device and method based on multiple optical fiber sensing components. Background technique [0002] With the development of social economy and technology and the improvement of people's requirements for quality of life, people's demand for testing their own health is increasing. Whether the human body is healthy can often be reflected from the breathing rate and heart rate. In addition, some experts pointed out that choosing a reasonable sleeping position can not only rest well, but also protect the body and mind, and play a role in preventing and treating diseases. For people with different needs, different sleeping positions have different health benefits. Patients with gastric ulcer, various types of gastritis and various digestive dysfunctions are best to sleep on the right side, but patients with reflux esophagus are suitable to sleep on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0205A61B5/11A61B5/00
CPCA61B5/0205A61B5/1116A61B5/4809A61B5/4812A61B5/4815A61B5/024A61B5/0816A61B5/7257A61B5/7203A61B5/6892A61B5/6891A61B5/0059
Inventor 李政颖赵涛程松林黄国良
Owner 武汉凯锐普医疗科技有限公司
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