Projects
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Fetal Activity Monitor
US 7,402,143
USD 599909
US 2010/0191154
Based on hundreds of medical articles and studies, decrease in fetal movement (FM) can indicate severe physical problems (such as prolonged hypoxia, neurological or muscular abnormality, fetal anemia, fetal hypothyroidism, intra-uterine growth restriction, or volume of amniotic fluid).
This device is a passive, home-use fetal activity monitor designed to be easily used by doctors and/or pregnant women for monitoring fetal activity.
The device, which is easily attached to the abdomen with a self-adhesive pad, contains a sophisticated microphone, designed to monitor fetal activity by picking up infrasonic vibrations from the abdominal skin surface.
The vibrations are converted into electrical signals by means of Kynar strips (a PvDF piezoelectric polymer), which act as a piezoelectric type strain gauge film.
The mechanism of this Berger Thermal Research device, together with the pad and the vibrations received, provide accurate and easy to understand analyses.