EDAN F6 User manual - page 138
F9, F9 Express Fetal & Maternal Monitor User Manual FTS-3 Fetal Telemetry System
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(less than 3°C (5.4ºF) above ambient temperature).
2. When NOT applied, the wireless ultrasound transducer may warm slightly (less than
3°C (5.4ºF) above ambient temperature).
11.5.3 Monitor the Ambulatory Patient
FTS-3 is suitable for ambulatory patients. You can take out the transducer from the docking slot
and fix the transducer on the location where the best fetal heart signal is received.
Please pay attention to the following during the monitoring.
x Ensure the transducer is tied up well.
x Record the effective FHR.
x The patient should not walk in strong tramps.
x The patient should move in the prescriptive area.
x The patient should be under monitoring when the wireless signal is good.
When the transducer is placed in the docking slot, the system stops transmission. It starts when
the monitor is connected to the transducer.
When the patient moves during monitoring, the interference may occur. The artificial interference
may influence the signal transmission quality. It will cause drop out or other interference if the
transducer works in the changing environment. Some kind of the artificial interference can be
anticipated and others can be discovered by observing the signal.
Some artificial interference may be caused by certain place. You can leave the place such as the
elevator or the window in iron for the place with signal reception.
The FHR may not be detected clearly when the patient moves in virtue of artificial interference.
The transducer is easy to shift underwater and it may lead to temporary signal loss.
No matter how good a telemetry system design is, the occasional US/TOCO dropouts are
inevitable. If it is not acceptable for certain patients, please connect the wired the transducer to
the bedside monitor.
The manufacturer has no control over the RF environment in the places where the system is used.
If interference exists at operating frequencies, the system performance will be affected. You can
change the working channel or move the system away from the interference to solve the problem.
Caution
Please do not mistake the patient’s steps for the fetal heartbeats.
11.5.4 Underwater Monitoring
Most wireless signal can be absorbed by water. Wireless transmission distances are shorter when
monitoring under water. If you have any question, just contact the manufacturer or the local
agent.