Monitoring Nbp; Introducing The Oscillometric Nbp Measurement - Philips IntelliVue CL SpO2 Instructions For Use Manual

Monitoring NBP

4
The IntelliVue CL NBP Pod uses the oscillometric method for measuring NBP. The blood pressure
measurements determined with this device comply with the American National Standard for
Electronic or Automated Sphygmomanometers (ANSI/AAMI SP10:2002/(R)2008 + A1:2003/
(R)2008) in relation to mean error and standard deviation, when compared to auscultatory
measurements (depending on the configuration) in a representative patient population. The fifth
Korotkoff sound was used to determine the diastolic pressure.
The accuracy of the mean arterial pressure (MAP) was validated by comparative laboratory testing to
the M3000A Multi-Measurement Server using an NBP simulator and a patient signal database. The
accuracy of the MAP of the M3000A was validated in a clinical evaluation using the intra-arterial
reference method.
The NBP measurement is suitable for use in the presence of electrosurgery and during the discharge of
a cardiac defibrillator according to IEC 60601-2-30:1999/EN 60601-2-30:2000.
A physician must determine the clinical significance of the NBP information.

Introducing the Oscillometric NBP Measurement

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.
Studies show that, especially in critical cases (arrhythmia, vasoconstriction, hypertension, shock),
oscillometric devices are more accurate and consistent than devices using other noninvasive measuring
techniques.
WARNING
Patient Category: Do not use the IntelliVue CL NBP Pod on neonatal patients. The initial inflation
pressure and overpressure safety limits are too high for neonatal patients and could cause fractures and
bruises.
Intravenous infusion: Do not use the NBP cuff on a limb with an intravenous infusion or arterial
catheter in place. This could cause tissue damage around the catheter when the infusion is slowed or
blocked during cuff inflation.
Skin Damage: Do not measure NBP in cases of sickle-cell disease or any condition where skin
damage has occurred or is expected.
4
39