EDAN F6 User manual - 9.4 Maternal Nibp Monitoring

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.