What kind of good pregnant women can choose to love pregnancy, angel talk-hot mom, Beibei pregnancy and so on. Buying a fetal heart can consider the following aspects:
1, and it is safe for the ultrasonic probe to emit less than 3MW per unit area.
2. See if the ultrasonic probe has waterproof function. If there is no waterproof function, ultrasonic cream and sweat will flow into the probe to make the internal short circuit, and it will breed bacteria and cause infection to pregnant women.
3. See if the transmitting frequency of the probe is below 2MHZ. This frequency probe can detect the fetal heart around 1 1 week.
4, see if it is a display screen, with the display screen, the fetal heart can be directly displayed on it, which is very convenient, without calculating the fetal heart every minute.
5. See if the battery is a lithium battery. The lithium battery has stable power supply, no noise, no infrasound and low cost.
6. See if the documents are complete, such as medical device production license, product registration certificate, international ce certification, quality system 13485 certification, etc. Only when the documents are complete can a regular company produce qualified products.
In order to better play the role of home fetal heart, before using it, prospective fathers and expectant mothers must read the detailed instructions first. Use according to the instructions, so as not to hurt the fetus in the belly. At present, there are many brands of fetal heart on sale, so you must buy better quality ones, which will make you feel more at ease.
Does fetal heart rate have side effects? 1. No. Experts say that in general, normal use of fetal heart rate will not have side effects. After all, normal pregnant mothers will also use fetal heart rate for fetal heart monitoring during pregnancy examination.
2. Fetal heart rate is mainly detected by ultrasonic detection technology. Its function is to reflect the condition of the fetus in the mother by monitoring fetal movement and fetal heart rate. Pregnant mothers can roughly judge the health status of the fetus according to the data displayed on the fetal heart rate. For pregnant mothers who are worried that fetal heart sound waves will affect the fetus, experts explained that the ultrasonic dose of fetal heart is far lower than the safety index requirements, so it will generally not affect the fetus.
3. However, expectant mothers should pay attention that it is not advisable to listen to the fetal heart too frequently during pregnancy, otherwise it will affect the normal rest of the fetus. It is recommended to use it once a day, about 1 minute. In addition, it is not recommended to use home fetal heart for self-monitoring before 15 weeks of pregnancy. /kloc-it is safe for pregnant women who are pregnant after 0/5-28 weeks to listen to 1-3 times a day, each time 1 minute.