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A newly developed home-monitoring system of fetal movement during sleep in pregnant women with high risk pregnancy for reducing their anxiety.

新开发的家庭监测系统可监测高危妊娠孕妇睡眠期间的胎动，以减少她们的焦虑。

基本信息

批准号：
20390566
负责人：
HORIUCHI Shigeko
金额：
$ 12.48万
依托单位：
St. Luke's College of Nursing
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2008
资助国家：
日本
起止时间：
2008 至 2010
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20390566/
关键词：
睡眠胎動妊婦加速度センサーハイリスク妊娠

项目摘要

We developed a small capacitive acceleration sensor of fetal movement with high output power, FMAM (Fetal Movement Acceleration Measurement)recorder and an automatic analysis system of fetal movement. The recorder (290g, 77mm X 27mm X 140mm) consists of two sensors (one for fetal movement ; one for maternal movement), a biological amplifier, and an SD card drive. We can record fetal movement during continuous 40 hours.The subjects were nine normal pregnant women (29-39 yr) who gave written informed consent. They recorded fetal movement once every four weeks from 20 to 36 gestation weeks. The number of fetal movement during maternal sleep showed weekly variation with individual differences. In the automatic analysis system of fetal movement, there were a few problems in artifacts coming from the mother, especially her respiration. We could record fetal movement of two pregnant women with high risks who had experienced stillbirth. The number of their fetal movement distributed within a rage of fetal movement of the pregnant women with low risks. When they saw analysis figures of their fetal movement, they felt safe of their fetal well-being.The pregnant women were able to easily record fetal movement using the FMAM recorder at night by themselves. The FMAM recorder is promising for a long term monitoring of fetal movement. It will be necessary to collect more data on normal pregnant subjects and to improve the system of analysis to exclude maternal artifacts.

我们研制了一种高输出功率的小型电容式胎动加速度传感器、胎动加速度记录仪和胎动自动分析系统。记录仪(290G，77 mm×27 mm×140 mm)由两个传感器(一个用于胎儿运动，一个用于产妇运动)，一个生物放大器和一个SD卡驱动器组成。我们可以记录胎儿在连续40小时内的运动。受试者是9名正常孕妇(29-39岁)，她们给予了书面知情同意。从怀孕20周到36周，他们每4周记录一次胎动。孕妇睡眠中的胎动次数随个体差异呈周变化。在胎动自动分析系统中，有一些来自母亲的伪影，特别是她的呼吸。我们可以记录两名经历过死产的高危孕妇的胎儿运动。胎动次数分布在低危孕妇的胎动范围内。当她们看到胎儿运动的分析数据时，她们对自己的胎儿健康感到安全。孕妇能够在夜间使用FMAM记录器轻松地记录胎儿运动。FMAM记录仪有望用于胎儿运动的长期监测。有必要收集更多关于正常孕妇的数据，并改进分析系统，以排除产妇人工制品。