In the Medical Profession field, Fetal Doppler is becoming increasingly recognized that it can be very beneficial for pregnant women to use at home in between visits to their OB/Gyne of hospital. This is particularly the case where mothers are anxious perhaps because they have previously had a difficult pregnancy or a miscarriage.
Some research found that when such a pregnant women buys or rents one of the current range of reasonably priced lightweight hand held dopplers her confidence and wellbeing increases.
You may well have become confused by the seemingly many different options available, if you have been looking at various websites and thinking of buying or renting a Doppler. However, in general there are two different types of real fetal dopplers. Those so-called 'pre-natal listeners' that simply amplify sounds within the abdomen are not dopplers. The two types are 'sound only' and 'digital' fetal dopplers. The sound only allows you to hear the baby's heartbeat. The digital fetal Doppler will also give you the sound but in addition it gives a digital display of the baby's heartbeats per minute.
Fetal doppler technology is based on the Doppler shift principle. This theory was first discovered by Christian Doppler an Austrian physicist in 1842. Doppler discovered that sound waves from a moving source would be compressed or expanded, or that the frequency would change.
Dopplers work on the principle of listening to reflections of small, high frequency sound waves (ultrasound). These ultrasound waves are generated by microscopic vibrations of piezoelectric crystals. When the waves are reflected from moving objects, such as a fetal heart the frequency changes slightly. It is this change that is analyzed by the electronics of the doppler and converted into a sound that you can hear or a digital display of the heart rate.
Fetal doppler is a great tool you can use to begin bonding with your baby before he or she is ever born. Just use them wisely. And with regards to most recommended Fetal Doppler in the market today, only use the Sonotrax Basic A. It is included in the Ultrasonic Pocket Doppler Sonotrax Series manufactured by Edan Instruments. This baby heart rate monitor can meet the routine examination requirements of obstetricians, midwives and pregnant woman themselves. It is a high performance model with FHR digital LCD display.
This particular model has audio output, which can be connected with earphone or recorder. As well, you can operate the unit with 4MHz or 8MHz probe for vascular diagnose.
Here are the other exceptional features of this fetal doppler:
- Ergonomic design, compact and light
- Easy-to-use
- Large backlight LCD display
- Accurate FHR detection with clear sound
- High sensitivity interchangeable probe
- Support 2MHZ, 3MHZ, 4MHZ, 8MHZ waterproof probes
- Automatic and manual FHR Counting
- Long time continuous use (about 8h)
- Automatic power-off
Read more fetal doppler and monitor reviews at the following websites:
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