MIR Spirodoc, User Manual

Page: 19 / 67

Spirodoc cod. 980156 Rev 1.3 EN 19/67
E
N
GLI
S
H
TV/t
I
Average flow of inspiration, at rest L/min
t
I
/Ttot t
E
/(t
I
+t
E
) \
MVV Maximum voluntary ventilation L/min
ELA Estimated lung age year
*= best values
Flow/volume measurement system
Bi-directional digital turbine
Temperature sensor semiconductor (0-45°C)
Measurement principle Infrared interruption
Volume range
10 L
Flow range

16 L/s
Volume accuracy

3% or 50 mL
Flow accuracy

5% or 200 mL/s
Dynamic resistance at 12 L/s <0.5 cmH
2
O/L/s
2.6.2 Oximeter features
Definitions:
Desaturation Event
Desaturation events SpO2 fall

4% in a limited period of 8-40 sec
and successive rise

2% within a total period of 150 sec.
Total Pulse rate
Variation Pulse rate rise

10 BPM in limited period of 8-40 sec and
successive fall

8 BPM during a total period of 150 sec.
Parameters measured during sleep oximetry:
SYMBOL DESCRIPTION Units
SpO2 Baseline SpO2 Average in first three minutes %
SpO2 Min SpO2 Minimum during period of analysis %
SpO2 Max SpO2 Maximum during period of analysis %
SpO2 Mean SpO2 Average during period of analysis %
BPM Baseline Average pulse frequency in the first 3 minutes BPM
BPM Min
Minimum pulse frequency during the period of
analysis
BPM
BPM Max
Maximum pulse frequency during the period of
analysis
BPM
BPM Mean
Average pulse frequency during the period of
analysis
BPM
Recording time Total time measure of SpO2 hh:mm:ss
T < 90% Time passed with SpO2 < 90 % % hh:mm:ss
T < 89% Time passed with SpO2 < 89 % % hh:mm:ss
T < 88% Time passed with SpO2 < 88 % % hh:mm:ss
T < 87% Time passed with SpO2 < 87 % % hh:mm:ss
N° Events SpO2
<89% Fall of SpO2 below 89% for at least 20 seconds
\

Index [12s]
Index of SpO2 fluctuation calculated in intervals
of 12 seconds
\
T< 40 BPM Time passed with pulse frequency < 40 BPM % hh:mm:ss
T> 120 BPM Time passed with pulse frequency > 120 BPM % hh:mm:ss
N° Events < 40
BPM Bradycardia events during the entire period of
analysis
\