94v0 circuit board for doppler fetal instrument

94v0 circuit board for doppler fetal instrument

Applications: maternal and child monitors, pulse oximeters, fetal heart monitors, electronic colposcopy, patient monitors, multi-parameter monitoring devices, etc.

The Doppler Fetal Instrument is primarily used to provide continuous monitoring, display, and recording of fetal heart rate (FHR) and for prenatal uterine function (UA) testing and monitoring.

Fetal monitoring is provided in general maternity hospitals. These fetal heart rate monitors use ultrasound Doppler technology. Therefore, it is also called Doppler fetal monitor.

Fetal heart monitoring purpose: to monitor whether fetal fetal movement is abnormal, according to fetal heart condition, make the appropriate processing.

Inspection time: 28 weeks after pregnancy

Check object: abnormal fetal movement / normal pregnant woman

Fetal heart rate monitoring of fetal heart rate is regulated by sympathetic and parasympathetic nerves. The curve of the monitoring pattern formed by the instantaneous fetal heart rate changes can be used to understand the fetal heart reaction during fetal movement and contractions. In order to speculate whether the fetus in utero anoxia.

Normal pregnancy is performed once a week from the 37th week of pregnancy. If there are complications , you can start from the 28th to 30th week of pregnancy. Should pay attention to whether the rhythm of fetal heart sounds is slow or fast, etc., normal fetal heart sounds 120 ~ 160 beats / min, if the fetal heart sounds 160 beats / min or more or last 100 beats / min mean fetal intrauterine hypoxia, should make timely treatment.

Abnormal performance and causes of fetal heart rate

The normal heart rate of the fetus is between 120 beats / min ~ 160 beats / min. If the fetal heart rate lasts more than 10 minutes or > 160 points, it indicates that the fetal heart rate is abnormal. The application of fetal heart monitor has become more popular. When the fetal heart is protected, it is found that there is an abnormality in the fetal heart pattern, which is often used to indicate abnormal fetal heart. Abnormal fetal heart rate in most cases means that the fetus has hypoxia in the uterus. The more severe the abnormal fetal heart rate, the more severe the fetal hypoxia is, but not all fetal heart abnormalities are caused by hypoxia. In addition, the pregnant woman's own condition also affects fetal heart rate changes, such as pregnant women with fever, fetal heart rate often exceeds 160 beats / min, pregnant women have hyperthyroidism, her own heart rate is very fast, the fetal heart rate often exceeds 160 beats / min If pregnant women take certain drugs, such as salbutamol taken during preterm birth, or use atopine, it can cause heart rate in mothers and children to accelerate.

Slow fetal heart rate may be caused by fetal hypoxia, but sometimes pregnant women take certain drugs, such as propranolol, the drug acts on the fetus through the placenta, causing the fetal heart rate to slow down. When the fetal heart rate continues to be slow, pay attention to check the possibility of congenital heart disease in the fetus. In addition, after more than 40 weeks of pregnancy, the fetal heart may sometimes be less than 120 times due to the development of the fetal nervous system. Points, therefore, in the case of fetal heart abnormalities, it is necessary to carefully analyze the situation and make correct judgments and timely treatments. If there is indeed fetal hypoxia, early delivery should be made.