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Fetal movement signal acquisition and analysis device

An analysis device and signal acquisition technology, applied in the fields of medical science, diagnosis, diagnostic recording/measurement, etc., can solve problems such as difficult to fully reflect the status of the fetus, and achieve easy expansion of the number of channels, good accuracy and reliability, and pressure signal perfect effect

Active Publication Date: 2021-08-06
SUZHOU GUOKE MEDICAL TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, in addition to the frequency of fetal movement, the monitoring of more forms of fetal movement indicators (such as the longest static time of the fetus, fetal activity, etc.) has important medical reference significance, but the existing products generally still only monitor the frequency of fetal movement. level, it is difficult to fully reflect the state of the fetus

Method used

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  • Fetal movement signal acquisition and analysis device
  • Fetal movement signal acquisition and analysis device
  • Fetal movement signal acquisition and analysis device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0132] refer to image 3 The general steps of signal acquisition and analysis performed by the fetal movement signal acquisition and analysis device of this embodiment include:

[0133] 1. Multi-channel pressure sensor signal acquisition;

[0134] 2. The preprocessing unit performs data preprocessing;

[0135] 3. The classification unit first cuts and segments the vibration signals collected by each sensor, so that the vibration signals of N channels in parallel form multiple independent determination units;

[0136] 4. Through multi-channel feature fusion and comparative analysis, analyze and judge a single determination unit one by one according to the timeline: the fetal movement signal is specifically classified as percussion fetal movement or strong fetal movement, and the noise signal is specifically classified as breathing noise, sneezing noise or body movement. motion noise;

[0137] 5. The statistical unit forms multi-dimensional fetal movement indicators within th...

Embodiment 2

[0184] This embodiment also provides a specific sensor on the basis of the above. In this embodiment, the sensor includes a package structure and a sensor body arranged in the package structure, and the package structure includes a bottom plate, snapped into the The cover plate on the bottom plate and the pressing piece arranged between the bottom plate and the cover plate.

[0185] In this embodiment, the piezoelectric sensor is selected as the sensor body. In order not to affect the sensing characteristics of the device, try to avoid bending and glueing when packaging the sensor. The packaging structure provided in this embodiment can meet this requirement, and can It can well collect the weak physiological fetal movement signals of the abdominal wall of pregnant women.

[0186] In this embodiment, the middle part of the bottom plate is formed with a mounting cavity capable of accommodating the sensor body through a number of surrounding limit bars, and the middle part of th...

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Abstract

The invention discloses a fetal movement signal acquisition and analysis device, comprising: a wearable signal acquisition module and a signal analysis module arranged on the abdominal wall of a pregnant woman; The sensor of the signal is used for parallel acquisition of N channel data; the signal analysis module includes a preprocessing unit, a classification unit and a statistical unit, and the preprocessing unit performs data preprocessing on the vibration signals collected by the N sensors in the received signal acquisition module Transfer to taxon. In addition to the number of fetal movements, the present invention can also include fetal movement forms (such as knocking, continuous, strong, etc.), the longest duration of fetal movement, the proportion of strong fetal movement within the longest duration, the longest static time of the fetus, and fetal activity. These indicators quantitatively describe the pregnant women's perception of the intensity, characteristics and duration of fetal movement for the first time, which has important medical reference significance.

Description

technical field [0001] The invention relates to the technical field of fetal movement detection, in particular to a fetal movement signal acquisition and analysis device. Background technique [0002] Fetal movement is the most intuitive feeling for pregnant women on the health status of the fetus in the uterus. When the fetus suffers from intrauterine injury, developmental delay or even death, pregnant women can be aware of the abnormal changes in fetal movement. Most of the guidelines involving fetal movement self-monitoring behaviors affirmed the importance of fetal movement self-monitoring. my country’s "Guidelines for Pre-pregnancy and Pregnancy Health Care (2018)" recommends pregnant women to start counting fetal movements at 29-30 weeks of pregnancy 1 Most foreign guidelines recommend that pregnant women start monitoring fetal movement every day after 28 weeks 2 . Decreased fetal movement is often the first sign of fetal death 3 , 2018 Australia / New Zealand clinica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/11A61B5/00
CPCA61B5/1118A61B5/4362A61B5/6802A61B5/7203A61B5/7207A61B5/7235A61B5/725A61B5/7267A61B2503/02
Inventor 贾朋飞杨洪波张莹莹吕甜甜蔡黎明刘永峰郭凯
Owner SUZHOU GUOKE MEDICAL TECH DEV CO LTD