Product Manual

M3A Vital Signs Monitor User Manual NIBP Monitoring (Optional)
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Chapter 10 NIBP Monitoring (Optional)
10.1 Introduction
This monitor uses the oscillometric method for measuring NIBP. It can be used for adult,
pediatric and neonatal patients.
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.
In adult and pediatric mode, the blood pressure measurements determined with this device comply
with the American National Standard for Electronic or Automated Sphygmomanometers
(ANSI/AAMI SP10-1992) in relation to mean error and standard deviation, when compared to
auscultatory measurements in a representative patient population. For the auscultatory reference,
the fifth Korotkoff sound was used to determine the diastolic pressure.
In neonatal mode, the blood pressure measurements determined with this device comply with the
American National Standard for Electronic or Automated Sphygmomanometers (ANSI/AAMI
SP10-1992) in relation to mean error and standard deviation, when compared to intra-arterial
measurements in a representative patient population.
WARNING
1 It is forbidden to perform NIBP measurements on the patient with sickle-cell disease or
under any condition where the skin is damaged or expected to be damaged.
2 For a thrombasthenia patient, it is important to determine whether measurement of the
blood pressure shall be done automatically. The determination should be based on the
clinical evaluation.
3 Ensure that the correct setting is selected when performing measurements on children.
It may be dangerous for children to be subjected to overpressure.
4 Continuous use of the automatic measuring mode for short interval may lead to the
discomfort of patient. If the deflated period is less than 30s, releases cuff pressure to
below 15mmHg (adult patients), or below 5mmHg (neonatal patients).
NOTE:
1 The equipment is suitable for use in the presence of electrosurgery.
2 The continuous measuring, automatic measuring and calibration can not be operated
on neonatal or pediatric patients.
3 Please use the proper type of cuff as recommended in this manual, or the wrong type
may lead to injury on the patient, especially when measuring neonatal patients.