User's Manual

F Series Fetal & Maternal Monitor User Manual Maternal Monitoring
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In the process of monitoring, if the SOV detects signals overlapping, an alarm message “Signals
Overlap (FHR1/FHR2, HR)” will appear on the screen to warn you. Checking the patient and
reposition of sensors might be needed.
9.4 Maternal NIBP Monitoring
9.4.1 Introduction
The monitor measures blood pressure using the oscillometric method.
Oscillometric devices measure the amplitude of pressure changes in the occluding cuff as the cuff
deflates from above systolic pressure. The amplitude suddenly increases as the pulse breaks
through the occlusion in the artery. As the cuff pressure decreases further, the pulsations increase
in amplitude, reach a maximum (which approximates to the mean pressure), and then diminish.
There are two modes available: Manual and Auto. In manual mode, NIBP is measured once on
each demand. In auto mode, NIBP is measured repeatedly after a preset time interval. This
interval is adjustable. You can perform a manual measurement during an Auto measurement
interval.
In both modes, systolic pressure (SYS) and diastolic pressure (DIA) are measured and displayed.
The blood pressure measurements determined with this device comply with the American
National Standard for Electronic or Automated Sphygmomanometers (ANSI/AAMI/ISO
81060-2:2009, ANSI/AAMI SP10:2002) in relation to mean error and standard deviation.
WARNING
1 Check for any fault of the cuff before start monitoring.
2 Do not perform NIBP measurements on patients with sickle-cell disease or under any
condition where the skin is damaged or expected to be damaged, such as on the arm
on the side of a mastectomy.
3 Pressurization of the cuff can temporarily cause loss of function of simultaneously
used monitor on the same limb.
4 If liquid is splashed on or into the main unit inadvertently, or enters the conduit, stop
using the monitor and contact the manufacturer for service immediately.
5 For a thrombasthemia patient, it is important to determine whether the measurement
of blood pressure shall be done automatically. The determination should be based on
clinical evaluation.
6 Do not apply the cuff to a limb that has an intravenous infusion or catheter in place
frequently. This could cause tissue damage around the catheter when infusion is
slowed or blocked during cuff inflation.
7 Make sure that the air conduit connecting the blood pressure cuff and the monitor is
neither blocked nor tangled.