S
S
S
R
R
R
F
F
F
6
6
6
1
1
1
8
8
8
B
B
B
6
6
6
U
U
U
s
s
s
e
e
e
r
r
r
’
’
’
s
s
s
M
M
M
a
a
a
n
n
n
u
u
u
a
a
a
l
l
l
～39～
8.5.3 Changing UA Baseline
You can change the UA baseline to 0, 5, 10 (default), 15 or 20. Please refer to the section 6.2 Fetal setting 15)
TOCO baseline.
8.5.4 TOCO Sensitivity
If the TOCO sensitivity is too high, and the TOCO trace exceeds the paper scale, you can reduce the TOCO
sensitivity to 50%. Or the TOCO sensitivity is too low, you can increase the TOCO sensitivity to 200%. The
default setting is 100%. To change the TOCO sensitivity, please refer to section 6.2 Fetal setting 13) Bed
1TOCO gain and 14
）
Bed 2 TOCO gain.
8.5.5 Testing TOCO Transducers
To test a TOCO transducer:
1) Turn on the monitor.
2) Connect the TOCO transducer to the fetal monitor.
3) Gently press the pick-up button of the transducer.
4) Check that the value on the display shows this change in pressure.
If a TOCO transducer fails the test, repeat this test with another transducer. If the second one passes the
test, defect of the first transducer is confirmed. Replace it with a good one. If the second transducer fails
the test as well, contact the manufacturer for service.
Technical Description:
a) The data and curves from uterine contraction pressure measurement reflect the magnitude of relative
value of the intensity of pressure inside the womb. Due to the influence of various factors such as the
shape of the transducer, the placing position and direction of the transducer, and the magnitude of
elasticity of the strap, the absolute value of uterine contraction pressure does not have any
corresponding relationship with the intensity of pressure inside the womb.
b) During monitoring, it is necessary to adjust the zero of uterine contraction pressure, i.e. uterine
contraction pressure zeroing shall be carried out whenever the zero is found having a relatively large
change in a certain interval of time.
NOTE:
The uterine contraction pressure transducer should never be coated with aquasonic coupling gel,
otherwise the uterine contraction pressure transducer might be damaged, and more seriously safety risks
may be produced. Measures should be taken routinely to prevent the transducer from moisture.
8.6 Monitoring Fetal Movement
8.6.1 Manual Fetal Movement Monitoring (MFM)
MFM result comes from the patient’s feeling of fetal movement. The count will be displayed on the screen in
MFM numeric area.
1) Insert the FM marker connector into the FM socket on the monitor.
2) Let the patient hold the marker in hand; ask her to press the top key of it when a fetal movement is felt.
Continuous movements in 5 seconds are considered to be one movement and only press the key once.
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