VS 8/VS 8A Vital Signs Monitor Operator’s Manual A - 9
■ The success rate for transmission of vital signs data from the monitor to the
bluetooth node:
> 99%.
A.5.10.3 Line of Sight Distance
The line of sight distance between the monitor and the bluetooth node is no less than 10
meters.
A.6 Measurement Specifications
A.6.1 SpO
2
Masimo SpO
2
Module
Alarm limit Range (%) Step (%)
SpO
2
High (low limit + 2) to 100 1
SpO
2
Low Masimo: (Desat +1) to (high limit – 2)
Nellcor: (Desat+1) or 20 (whichever is greater) to (high limit – 2)
Desat 0 to (low limit – 1)
Standards meets the requirements of ISO 80601-2-61
SpO
2
Measurement
range
1% to 100%
PI measurement range 0.02 to 20%
SpO
2
Resolution 1%
PI Resolution PI < 10.0: 0.01
PI ≥ 10.0: 0.1
Accuracy
1
70% to 100%: ±2% ABS (without motion in adult/pediatric
mode)
70% to 100%: ±3% ABS (without motion in neonate mode)
70% to 100%: ±3% ABS (with motion)
1% to 69%: Not specified.
Refreshing rate ≤ 1 s
Response time ≤ 20 s (normal perfusion, no disturbance, SpO
2
value sudden
change within 70% – 100%)
SpO
2
averaging time 2-4 s, 4-6 s, 8 s, 10 s, 12 s, 14 s, 16 s
Low perfusion
conditions
Pulse amplitude: >0.02%
Light penetration: >5%
A - 10 VS 8/VS 8A Vital Signs Monitor Operator’s Manual
Nellcor SpO
2
Module
Information of the Test Subjects of the Clinical Study Report
Low perfusion SpO
2
accuracy
2
±2%
1
The Masimo pulse oximeter with sensors have been validated for no motion accuracy in
human blood studies on healthy adult volunteers in induced hypoxia studies in the range
of 70% to 100% SpO
2
against a laboratory co-oximeter and ECG monitor. This variation
equals plus or minus one standard deviation. Plus or minus one standard deviation
encompasses 68% of the population. One percent was added to the accuracies for
neonatal sensors to account for accuracy variation due to properties of fetal hemoglobin.
The Masimo pulse oximeter with sensors has been validated for motion accuracy in human
blood studies on healthy adult volunteers in induced hypoxia studies while performing
rubbing and tapping motions at 2 to 4 Hz. At an amplitude of 1 to 2 cm and non-repetitive
motion between 1 to 5 Hz. At an amplitude of 2 to 3 cm in induced hypoxia studies in the
range of 70% to 100% SpO
2
against a laboratory co-oximeter and ECG monitor. This
variation equals plus or minus one standard deviation. Plus or minus one standard
deviation encompasses 68% of the population.
2
The Masimo pulse oximeter has been validated for low perfusion accuracy in bench top
testing against a Biotek Index 2 simulator and Masimo's simulator with signal strengths of
greater than 0.02% and a % transmission of greater than 5% for saturations ranging from
70 to 100%. This variation equals plus or minus one standard deviation. Plus or minus one
standard deviation encompasses 68% of the population.
Standards Meet standards of ISO 80601-2-61
Measurement range 0% to 100%
Resolution 1%
Accuracy 70% to 100%: ±2%ABS (adult/pediatric mode)
70% to 100%: ±3% ABS (neonate mode)
0% to 69%: Not specified.
Refreshing rate ≤ 1 s
Response time ≤ 30 s (normal perfusion, no disturbance, SpO
2
value
sudden change within 70% – 100%)
* When the SpO
2
sensor is applied for neonatal patients as indicated, the specified accuracy
range is increased by ±1%, to compensate for the theoretical effect on oximeter
measurements of fetal hemoglobin in neonatal blood.
Skin color Gender Number Age (years) Health
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