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Baby Heart Monitor

Do you know about Doppler fetal heart monitor?

Doppler fetal heart monitors are mainly used for fetal heart rate monitoring. General maternity hospitals provide fetal heart rate monitoring. These fetal heart rate monitors use ultrasound Doppler technology, so they are also called Doppler fetal heart rate monitors. . Ultrasound diagnosis made according to the Doppler effect is also called Doppler ultrasonic diagnostic apparatus (D-type ultrasonic diagnostic apparatus). It is used in the diagnosis of the heart, blood vessels, blood flow and fetal heart rate in medical clinical diagnostics.

With the development of Internet technology, a new intelligent fetal language device has appeared. Because of its rich functions and more in line with modern people's usage habits, it is gradually replacing the traditional fetal heart device and stethoscope.

The new generation of intelligent fetal language monitor covers the functions of traditional fetal heart rate monitors. It is not only listening to fetal heart rate, but can also meet the standard of home monitoring of fetal heart rate, drawing monitoring curves, counting fetal heart rate and fetal movement, and sharing it with doctors for remote assistance, etc. , Combine Doppler probe with mobile phone software, suitable for pregnant women who are accustomed to using Apple or Android phones.

The ultrasound Doppler fetal heart rate monitor adopts the principle of ultrasound non-focused continuous wave Doppler, which is composed of an ultrasound transducer and a circuit part coupled with the mother's abdomen. It can monitor and record the fetal heart rate and the functions of the mother's contractions. It is mainly used for The monitoring of the fetus in the late pregnancy, prenatal and during delivery. It is a mandatory inspection project. During verification, the ultrasound beam generated by the ultrasound transducer is directly aimed at the fetus, and a part of the incident sound beam reaches the moving surface of the fetal heart. Due to the Doppler effect, the ultrasound frequency shifts in frequency, which is detected by the receiving transducer and processed by the signal. The low-frequency signal related to the fetal heart rate can be separated and amplified for use in the detection of the fetal heart rate. Doppler ultrasound fetal heart rate monitor is recognized as the most accurate and widely used fetal heart rate monitoring method and instrument in the industry. It can be divided into medical Doppler fetal heartbeats used in maternal and child health care hospitals and medical systems and household Doppler fetal heartbeats used by ordinary pregnant women.

The purpose of fetal heart rate monitoring: to monitor whether the fetal fetal movement is abnormal, and to make corresponding treatment according to the fetal heart rate.

Inspection time: after 12 weeks of pregnancy

Inspection object: pregnant women with abnormal/normal fetal movement

Fetal heart rate monitoring The fetal heart rate is regulated by sympathetic nerves and parasympathetic nerves. The curve of the monitoring graph formed by the signal trace of the momentary fetal heart rate changes can be used to understand the response of the fetal heart during fetal movement and uterine contraction, so as to infer whether the fetus is defective in the uterus oxygen.

For normal pregnancy, fetal heart rate monitoring will be performed once a week from the 37th week of pregnancy. If there are complications or complications, it can be performed from the 28th to 30th week of pregnancy. It should be noted whether the rhythm of fetal heart sounds is sudden or slow. Normal fetal heart sounds are 120 to 160 beats/min. If the fetal heart sounds are more than 160 beats/min or continuous 100 beats/min, it means that the fetus is hypoxic in the uterus. Treat in time.

The normal heart rate of the fetus is between 120 beats/minute and 160 beats/minute. If the fetal heart rate lasts for more than 10 minutes or is greater than 160 minutes, it indicates that the fetal heart rate is abnormal. The application of fetal heart rate monitors has become more popular. During fetal heart care, abnormal fetal heart patterns are found, which are often used to indicate abnormal fetal heart rates. In most cases, abnormal fetal heart rate means that the fetus has hypoxia in the uterus. The more serious the abnormality of the fetal heart rate, the more severe the fetal heart rate is. However, not all abnormalities of the fetal heart rate are caused by hypoxia, except for the above cases. In addition, the condition of the pregnant woman also affects the change of the fetal heart rate. For example, if the pregnant woman has a fever, the fetal heart rate often exceeds 160 beats/min. The pregnant woman has hyperthyroidism, her own heart rate is very fast, and the fetal heart rate often exceeds 160 beats/min. If pregnant women take certain drugs, such as albuterol taken during premature birth, or atopin, they can cause the mother and child's heart rate to increase. Slow fetal heart rate may be caused by hypoxia of the fetus, but sometimes pregnant women take certain drugs, such as propranolol, which 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 whether the fetus may have congenital heart disease. In addition, after more than 40 weeks of pregnancy, due to the development of the fetus’s nervous system, the fetal heart rate can sometimes be lower than 120 times/ Therefore, when there is an abnormal fetal heart rate, it is necessary to carefully analyze the situation and make correct judgments and treatments. If there is indeed fetal hypoxia, delivery should be made as soon as possible.

Doppler Fetal Monitor Function

Sonoline Fetal Doppler