Physiological Signal 8-1 
8  Physiological Signal 
ECG function in the ultrasonic exam (mainly in cardiac exams) is used to display the physiological 
signal waves for observing the ultrasonic image synchronously and to locate the ultrasonic image 
by time according to the time phase signal provided by this function. 
The ECG function is an option. 
 
 
1.  Do not use the physiological traces for diagnosis and monitoring. 
2.  To avoid electric shock, the following checks shall be performed prior 
to an operation: 
a) The ECG electrode cable shall not be cracked, frayed or show any 
signs of damage or strain. 
b) The ECG electrode cable shall be correctly connected. 
c) You should use the ECG leads and PCG transducer provided with 
the physiological module. Otherwise it may result in electric shock. 
3.  The ECG electrode cable must be connected to the system first. Only 
after  the  cable  is  connected  to  the  system,  can  the  patient  be 
connected to  the ECG electrodes. Otherwise, it  may  cause  electric 
shock to the patient.   
4.  Do  not  place  the  ECG  electrodes  directly  in  contact  the  patient’s 
heart; otherwise it may lead to stop of the patient’s heartbeat. 
5.  Do not apply the ECG electrodes if the voltage exceeds 15 volts. This 
could produce an electric shock. 
6.  Before  using  high  frequency  electric  surgical  unit,  high  frequency 
therapeutic  equipment  or  defibrillator,  be  sure  to  remove  the  ECG 
electrode from the patient, in order to prevent electric shock. 
7.  Conductive parts of electrodes and associated connectors for ECG 
should  not  contact  other  conductive  parts  including  earth  / 
grounding. 
8.  Frequent trampling or squeezing on the cables may result in cable 
break-down or fracture. 
9.  If an abnormality is detected in physio trace, check that the ECG leads 
are properly connected to the system.