MiniSpir Light
User manual
MINISPIR LIGHT User manual
Rev 1.7
page 9 di 13
•
Inexpensive to replace.
The turbine flow measurement sensors, used on
MiniSpir
ensure high precision in measurements and have the great advantage
of requiring no periodic calibration (however, the turbines can be calibrated if required by the doctor).
DISPOSABLE TURBINE
In order to maintain the characteristics the turbines must always be substituted between patients.
For a correct interpretation of a spirometry test, the measured values must be compared either to the so-called
normal or
predicted values
which are calculated from the anthropometric details of the patient or, alternatively, to the personal best values
from the clinical history of the subject.
The personal best values can vary considerably from the predicted values, which are taken from “healthy” subjects.
MiniSpir Light
is connected to a PC trough a USB port. Data measured by
MiniSpir Light
are transferred to the PC in real-time.
The
Windows “winspiroLIGHT” software allows to view the spirometric test results (flow/volume curves, spirometry parameters)
plus the related subject detail.
The data measured by
MiniSpir Light
and arranged by the software are available for interpretation by specialised personnel.
The software gives an interpretation of each spirometry test by assigning
a “traffic light” code and by comparing the previous values
of the same
subject or the reference values of the subject’s group. For further details see the online manual of the WinspiroLIGHT
Software.
MiniSpir Light
is able to make FVC, VC & IVC tests, calculates an index of test acceptability (quality control) plus reproducibility
of the spirometry tests carried out. The automatic test interpretation follows the latest 11 level ATS (American Thoracic Society)
classification. Each test can be repeated as required. The best parameters are always available for review. The normal (predicted)
values can be selected from several normal “sets”. For example, within the European Union the majority of doctors use the ERS
(European Respiratory Society) predicted values. For the configuration of parameters and storing tests, see the online manual of
the WinspiroLIGHT Software.
1.6
Technical features
There follows a comprehensive description of the main features of the device.
1.6.1
Features of the spirometer
This device meets the requirements of the following standard:
•
ATS Standardization of Spirometry 2005, 2019 update
•
ISO 23747: 2015
•
ISO 26782: 2009
Measured parameters:
SYMBOL
DESCRIPTION
m.u.
FVC
Forced Vital Capacity
L
FEV1
Volume expired in the 1
st
second of the test
L
FEV6
Volume expired in the initial 6 seconds of the test
L
FEV1%
FEV1/FVC x100
%
PEF
Peak Expiratory Flow
L/min
FEF2575
Flow ratio at 25% and at 75%
L/s
FIVC
Forced inspiratory volume
L
ELA
Estimated lung age
years
EVC
Slow vital capacity (expiratory)
L
IVC
Slow inspiratory vital capacity
L
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 (ATS 2019)
2.5% or 50 mL
Flow accuracy
5% or 200 mL/s
Dynamic resistance at 12 L/s
<0.5 cmH
2
O
