Comper Chuangxiang Technology Co. Ltd DFMX1001 ユーザーズマニュアル

 

Dear customers,  
 
Thank you for purchasing 

COMPER SMART DOPPLER 

FETAL MONITOR

. Please read the user manual to ensure 

safe operation and accurate outcome before use. Keep this 
manual readily available for reference.  

 

 

 

Fetal Monitor is hand-held detection instrument, intended to be 
used by health care professionals including obstetrician, nurse in 
hospitals, clinics and pregnant women at home.  

 

Application scope: monitor fetal heart sound and the range of 
heart rate during antepartum. 
 

 
Adopting the principle of  non-focused  ultrasound 
continuous  wave 

Doppler, when in use, the ultrasonic 

transducer generates an ultrasonic beam directing to the fetus. A 
portion of the incoming ultrasonic beam will reach the surface of 
fetal heart movement, due to the Doppler effect, the frequency 
shift of the ultrasonic occurs, which can be detected by receiving 
transducer. The low-frequency signal related to the fetal heart 
can be separated by signal processing, and to be identified.