EarlyVue VS30 Instructions for Use 16-5
NBP Specifications
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.
A physician must determine the clinical significance of the NBP information.
Accuracy is determined using devices based on Philips NBP technology and Philips-
approved single lumen cuffs. The accuracy specifications below do not apply to the use
of dual lumen or Y adaptor cuffs. If you intend to use dual lumen or Y adaptor cuffs,
consult the Instructions for Use provided with those products for information about
accuracy and performance with Philips monitors.
The following table lists the specifications for the Philips NBP module.
Parameter Specification
Technique Oscillometric using stepwise deflation pressure
Adult Measurement Range
Systolic
Diastolic
MAP
Pulse Rate Range
30 mmHg–270 mmHg (4.0 kPa–36.0 kPa)
10 mmHg–240 mmHg (1.3 kPa–31.9 kPa)
20 mmHg–250 mmHg (2.7 kPa–33.3 kPa)
40 bpm–300 bpm
Pediatric Measurement
Range
Systolic
Diastolic
MAP
Pulse Rate Range
30 mmHg–180 mmHg (4.0 kPa–24.0 kPa)
10 mmHg–150 mmHg (1.3 kPa–20.0 kPa)
20 mmHg–160 mmHg (2.7 kPa–21.3 kPa)
40 bpm–300 bpm
Neonatal Measurement
Range
Systolic
Diastolic
MAP
Pulse Rate Range
30 mmHg–130 mmHg (4.0 kPa–17.0 kPa)
10 mmHg–100 mmHg (1.3 kPa–13.3 kPa)
20 mmHg–120 mmHg (2.7 kPa–16.0 kPa)
40 bpm–300 bpm
Blood Pressure Accuracy Maximum Standard Deviation: 8 mmHg
Maximum Mean Error: ±5 mmHg
Standard deviation and mean error compliant with
AAMI/ISO 81060-2 Criterion 1
Pulse Rate Range and
Accuracy
40 bpm–100 bpm: ±5 bpm
101 bpm–200 bpm: ±5% of reading
201 bpm–300 bpm: ±10% of reading
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