Nonlinear fetal heart rate surveillance instrument

Abstract

A non-linear fetal heart rhythm monitor is disclosed. Its monitoring method includes such steps as taking the cardiac sound signals of fetus by ultrasonic Doppler sensor, extracting the envelope of audio signals, transmitting it to A / D interface card PC6360, A / D conversion, and transmitting the converted result to computer aided non-linear analyzing processor which has man-machine interaction interface and the working interface and analyzing software of non-linear kinetic analysis software package.

Description

technical field [0001] The invention belongs to the technical field of medical care and relates to a health care monitoring instrument; the international patent classification number: A61B5 / 024. Background technique [0002] The change of fetal heart rate can reflect the different health conditions of the fetus in the mother's body, and various diseases of the fetus can be diagnosed by detecting the fetal heart rate. That is to say, the fetal heart rate signal carries abundant information indicating the health status of the fetus. In traditional medical testing, doctors use traditional fetal heart rate monitors to record the fetal heart rate on a paper tape. Doctors use years of clinical experience to diagnose fetal diseases and fetal health. Due to individual differences among doctors, there is no uniform objective standard for diagnosis. [0003] The inventor adopts nonlinear dynamics method to study the growth and development of the fetus and the relationship between th...

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