MIR MIROxi User manual

MIROxi User Manual cod. 980265 Rev 1.6 Page 1 of 32
MIROxi
User Manual
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User Manual Rev. 1.6
Issued on: 06/10/2008
Approved on: 06/10/2008

MIROxi User Manual cod. 980265 Rev 1.6 Page 2 of 32
Thank you for choosing a product from MIR
MEDICAL INTERNATIONAL RESEARCH
The original packaging contains the device plus its standard accessories:
Accessories supplied with MIROxi CODE
MIROxi carrying case 672690
MIROxi device 910570
1 Oximeter sensor 919010
MIROxi User Manual 980205
USB connection cable 532365
4 x 1.5V AAA batteries 970080
CD winspiroPRO 920100
Belt and holder 919089
OPTIONS CODE
RS232 connection cable 532367
“Wrap” finger sensor for long term oximetry*919001
* accessories for single use only; all other accessories are reusable
Before using your MIROxi …
•Read this Manual carefully, plus all labels and any other product information supplied.
•If not fitted, install the operating batteries taking care to connect the “+” and “-” battery poles correctly, as shown within
the battery compartment.
•Set the device configuration as required (date, time, predicted values, device language etc.) as described in Paragraph
2.4.
WARNING
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The winspiroPRO PC software supplied with the device MUST be correctly installed on the PC before
connecting MIROxi to the PC. At the end of the installation, connect the device to the PC and the hardware
will be "recognised" by the PC. The device can then be used with the winspiroPRO software.
Keep the original packaging!
In the event that your device requires service then always use the original packaging to return it to the distributor or
manufacturer.
In this case, please follow these guidelines:
•Return the complete device with accessories in the original packaging, and
•The transport (plus any customs or taxes) costs must be prepaid.
Manufacturer’s address:
MIR SRL
VIA DEL MAGGIOLINO, 125
00155 ROMA (ITALY)
Tel ++ 39 0622754777
Fax ++ 39 0622754785
Web site: www.spirometry.com
Email: [email protected]
MIR has a policy of continuous product development and improvement, and the manufacturer therefore
reserves the right to modify and to update the information contained in this Manual as required. Any
suggestions and or comments regarding this product should be sent via email to: mi[email protected].
Thank you.
MIR accepts no responsibility for any loss or damage caused by the User of the device due to instructions
contained in this Manual and/or due to an incorrect use of the product.
Note that due to printing limitations the screenshots shown in this manual may differ from the display of the
machine and/or from the keyboard icons.
Copying this manual in whole or in part is strictly forbidden.
FEDERAL LAW RESTRICTS THIS DEVICE TO SALE TO OR ON THE ORDER OF A PHYSICIAN

MIROxi User Manual cod. 980265 Rev 1.6 Page 3 of 32
INDEX
1. INTRODUCTION...................................................................................................................................................... 4
1.1 Intended Use.................................................................................................................................................... 4
1.1.1 User Category ............................................................................................................................................. 4
1.1.2 Ability and experience required ................................................................................................................... 4
1.1.3 Operating environment................................................................................................................................ 4
1.1.4 Who can or must make the installation........................................................................................................ 4
1.1.5 Subject effect on the use of the device........................................................................................................ 4
1.1.6 Limitations of use - Contraindications.......................................................................................................... 4
1.2 Important safety warnings ................................................................................................................................ 5
1.2.1 Danger of cross-contamination.................................................................................................................... 5
1.2.2 Oximetry sensor .......................................................................................................................................... 5
1.2.3 Device ......................................................................................................................................................... 6
1.3 Unforeseen errors ............................................................................................................................................ 6
1.4 Labels and symbols ......................................................................................................................................... 7
1.4.1 Identification label........................................................................................................................................ 7
1.4.2 CE mark for medical devices....................................................................................................................... 7
1.4.3 Electrical safety symbol............................................................................................................................... 7
1.4.4 Warning symbol for the RS232 serial port...................................................................................................7
1.4.5 Warning symbol for the USB serial port ...................................................................................................... 7
1.4.6 Warning symbol for the SpO2 port for oximetry........................................................................................... 7
1.4.7 Warning symbol for the WEEE.................................................................................................................... 7
1.4.8 FCC Warnings............................................................................................................................................. 8
1.5 Product description .......................................................................................................................................... 8
1.6 Technical specifications ................................................................................................................................... 9
1.6.1 Other features ........................................................................................................................................... 11
2. FUNCTIONING OF THE MIROxi............................................................................................................................ 11
2.1 Keyboard........................................................................................................................................................ 11
2.2 Battery Level .................................................................................................................................................. 13
2.3 Information ..................................................................................................................................................... 13
2.4 Initial Set-up ................................................................................................................................................... 13
2.5 Patient Data ................................................................................................................................................... 15
2.6 Displaying data in memory............................................................................................................................. 16
2.7 Online operating mode (connected to a PC) .................................................................................................. 16
2.8 Oximetry testing ............................................................................................................................................. 16
2.8.1 Walk Test (6MWT) .................................................................................................................................... 18
2.8.2 Sleep Oximetry.......................................................................................................................................... 19
2.8.3 SPO2 BPM Oximetry Test......................................................................................................................... 19
2.8.4 SPO2 BPM Test........................................................................................................................................ 20
2.8.5 Adult Single Patient Sensor – Instructions for Use.................................................................................... 20
2.8.6 Instruction for the belt and holder.............................................................................................................. 21
3DATA TRANSMISSION ............................................................................................................................................. 21
3.1 Wireless Data Transmission via Phone Line (optional function)..................................................................... 21
3.2 Data Transmission via Bluetooth to a cell phone ........................................................................................... 22
3.2.1 Preliminary Operations.............................................................................................................................. 22
3.2.2 Setting the Phone Number ........................................................................................................................22
3.2.3 Bluetooth Data Transmission .................................................................................................................... 22
3.3 Data Transmission via Bluetooth for printing..................................................................................................22
3.4 Connection to a PC through USB port ........................................................................................................... 23
3.5 Connection to a PC through the RS232......................................................................................................... 23
3.6 Upgrade Internal software.............................................................................................................................. 23
4MAINTENANCE......................................................................................................................................................... 23
4.1 Cleaning the oximetry sensor......................................................................................................................... 24
4.2 Changing the adhesive tape of the wrap sensor ............................................................................................ 24
4.3 Changing the Batteries................................................................................................................................... 24
5PROBLEM SOLVING................................................................................................................................................. 24
5.1 Causes and Solutions .................................................................................................................................... 25
LIMITED WARRANTY CONDITIONS ............................................................................................................................... 27
ANNEX 1 OXYMETRY TEST REPORT EXAMPLES................................................................................................ 28
ANNEX 2 INFORMATION FOR CORRECT USE IN AN ELECTROMAGNETIC ENVIRONMENT........................... 31

MIROxi User Manual cod. 980265 Rev 1.6 Page 4 of 32
1. INTRODUCTION
1.1 Intended Use
The MIROxi pulse oximeter is intended to be used by a physician or by a patient under the instruction of a physician or
paramedic.
The device is intended to test lung function and can make oximetry testing in people of all ages.
It can be used in any setting.
1.1.1 User Category
The MIROxi oximeter calculates a series of parameters relating to human respiratory function.
Typically the doctor “prescribes” the use of the device and is responsible for analysing and controlling the results
obtained.
1.1.2 Ability and experience required
The correct use of the device, the interpretation of the results and the maintenance of the device all require qualified
personnel. In the event that the device is operated by the patient, then sufficient training must first be given to the patient
by the doctor or by the trained paramedic under the supervision of the doctor.
WARNING
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The manufacturer cannot be held responsible for any damage caused by the user of the device failing to
follow the instructions and warnings contained in this manual.
MIROxi is intended for spot-checking, overnight sleep screening and/or continuous monitoring when
attended by a trained healthcare professional.
1.1.3 Operating environment
MIROxi has been designed for use in a doctor’s office, in a hospital or directly by the patient during day-to-day activities
for the monitoring of physical conditions. All information necessary for the proper use of the device in electromagnetic
environments (as required by the EN 60601-1-2 Standard) is available from the manufacturer.
Used at home, at work, at school or during sports, day by day the device records data and functional respiratory
parameters for a period of weeks or months, assisting the patient in making a better assessment of hisor her own health.
The procedures for using the device at home are described according to the type of test to be made; the display will
show all instructions (messages, suggestions etc.) step-by-step, which allows the subject to correctly perform tests and
obtain correct results, to be analysed by the doctor.
The instrument is not intended for use in an operating theatre nor in the presence of inflammable liquids or detergents,
nor in the presence of inflammable anaesthetic gases (oxygen or nitrogen).
The instrument is not designed to be used in direct sources of heat or cold, direct sun rays or other sources of light or
energy, dust, sand or any other chemical substances.
The user and/or the doctor are responsible for ensuring that the device is stored and used in appropriate environmental
conditions; in this regard reference is made to the specifics described in paragraph 1.6.1 below.
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If the device is exposed to unsuitable environmental conditions, this could cause the device to malfunction
and to give incorrect results.
1.1.4 Who can or must make the installation
The device requires installation by qualified personnel. Normally the doctor configures the instrument before giving it to
the patient for use at home.
1.1.5 Subject effect on the use of the device
Patient collaboration is not required to make oximetry testing.
1.1.6 Limitations of use - Contraindications
An analysis of the results of oximetry testing is not by itself sufficient to make a correct diagnosis of the subject’s clinical
condition. A detailed clinical history of the subject is required together with the results of any other test(s) suggested by a
doctor.
Test comments, a test interpretation and suggested courses of treatment must be given by a doctor.
Any symptoms that the subject has at the time of the test must be carefully considered before a oximetry test is made.
The user is responsible to assess both the mental and the physical capacity of the subject in order to make a correct test.
The acceptability of a test is the responsibility of the user.

MIROxi User Manual cod. 980265 Rev 1.6 Page 5 of 32
The device must never be used when it is possible or probable that the validity of the results may be compromised due to
any such external factors.
ATTENTION
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MIROxi has limited alarms, therefore the device requires frequent observation of SpO2 and pulse rate results
displayed.
1.2 Important safety warnings
MIROxi has been examined by an independent laboratory which has certified the conformity of the device to the
European Safety Standards EN 601-1 and guarantees the EMC Requirements within the limits laid down in the European
Standard EN 60601-1-2.
MIROxi is continually controlled during its production and therefore the product conforms to the established security
levels and quality standards laid down by the Council Directive 93/42/EEC for MEDICAL DEVICES.
After removing the device from its packaging, check that there is no visible damage. In case of damage do not use the
device, return it to the manufacturer for repair.
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The safety and the correct performance of the device can only be assured if the user of the device respects
all of the relevant safety rules and regulations.
The manufacturer cannot be held responsible for damage caused by the failure of the user correctly to follow
these instructions.
The device must be used only and exclusively as an oximeter following the indications given by the
manufacturer with particular attention to the paragraph on intended use (see paragraph 1.1), and utilizing
only original spare parts and accessories. The use of non-original parts such as the oximetry sensor or other
accessories may cause errors in measurement and/or compromise the correct functioning of the device, and
is therefore not permitted.
Do not use the device beyond the declared life span. The life span is strictly related to the life of the internal
lithium backup battery (CR2032) and in normal conditions this should be around 10 years. The device
constantly monitors the state of charge of this battery and a message informs the user when the battery is
discharged. Contact Technical Service to have this battery changed.
In the event of any incident or accident of any kind resulting from the use of the device, the user is required
to inform the manufacturer without delay, this procedure is laid down in Article.9 of the European
Regulations No. 46/1997, which implemented the EC Directive No. 93/42.
1.2.1 Danger of cross-contamination
In order to avoid exposing the subject to the critical danger of cross-contamination, the oximetry sensor must always be
cleaned before each oximetry test. If a single-patient sensor is used, then a new one must be used for each patient.
1.2.2 Oximetry sensor
The oximetry sensor has two light emitting diodes (LEDs), one emits in the visible spectre and one infrared. Both lights
pass through the finger and are “read” by the receiver. As these lights pass through the finger, a proportion of the light is
absorbed by the blood and by the soft tissue, in function of the concentration of heamoglobin. The quantity of light
absorbed, at each frequency, depends on the degree of oxygenation of the haemoglobin inside the soft tissue.
The oximetry sensor can be disinfected with isopropilic alcohol.
The oximetry sensors which can be used with MIROxi are the following:
MANUFACTURER MANUFACTURER CODE DESCRIPTION
BCI 1300 adult sensor (disposable)
BCI 3026 wrap-around sensor for infants
BCI 3043 universal Y sensor
BCI 3078 ear sensor
BCI 3178 pediatric finger sensor, reusable
BCI 3444 adult sensor reusable (Comfort Clip)
BCI 3044 adult sensor, reusable, for finger
These sensors require the use of an extension cable cod. 919100 to connect to the device.
These sensors are also available with a microconnector for direct connection.
Prolonged use and/or the patient’s condition may require changing the sensor site periodically. Change sensor site and
check skin integrity, circulatory status, and correct alignment at least every 4 hours.
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Incorrectly applied sensors or damaged cables may cause inaccurate readings. Using a damaged sensor
may cause inaccurate readings, possibly resulting in patient injury or death. Inspect each sensor before use.
If a sensor appears damaged do not use it. Use another sensor or contact your authorized repair centre for
assistance.

MIROxi User Manual cod. 980265 Rev 1.6 Page 6 of 32
Use only MIR sensors supplied with or specifically intended for use with the MIROxi. The use of sensors not
intended for use with the MIROxi may cause inaccurate readings.
Oximetry measurements may be inaccurate in the presence of high ambiental light. Shield the sensor area
(with a surgical towel, for example) if necessary.
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Dyes introduced into the bloodstream, such as methylene blue, indocyanine green, indigo carmine, patent
blue V (PBV), and fluorescein may adversely affect the accuracy of the oximetry reading.
Any condition that restricts blood flow, such as the use of a blood pressure cuff or a device for systemic
vascular resistance, may cause an inability to determine accurate pulse rate and SpO2 readings.
Remove fingernail polish and/or false fingernails before applying SpO2 sensors. Both may cause inaccurate
oximetry measurement.
Significant levels of dysfunctional hemoglobins, such as carboxyhemoglobin or methemoglobin, may
adversely affect the accuracy of the oximetry measurement.
Optical cross-talk can occur when two or more sensors are placed in close proximity. Optical cross-talk may
adversely affect the accuracy of the oximetry readings. The danger can be eliminated by covering each site
with opaque material.
Obstructions or dirt on the sensor’s emitter and/or detector may cause a sensor failure or inaccurate
readings. Make sure there are no obstructions and the sensor is clean.
Autoclaving, ethylene oxide sterilizing, may cause sensor damage. Do not attempt to sterilize the sensor.
Unplug the sensor from the MIROxi before cleaning or disinfecting to prevent damaging sensor or device,
and to prevent safety hazards for the user.
1.2.3 Device
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The maintenance operations detailed in this Manual must be fully and accurately carried out. If these
instructions are not followed this can cause measurement errors and/or an incorrect test interpretation.
Any modifications, adjustments, repairs or reconfiguration must be made by the manufacturer or by
personnel authorised by the manufacturer. Never attempt to make a repair oneself. The set-up of
configurable parameters should only be made by qualified personnel. However, an incorrect set-up of the
parameters does not put the patient at risk.
High-frequency emissions from other electronic devices may interfere with the correct operation of the
instrument. For this reason, certain minimum clearances (a few metres) should be observed when high-
frequency appliances such as a TV, radio, portable phone, etc. and other electronic units are operated at the
same time in the same room.
The instrument may give inaccurate readings if operated in the presence of strong electromagnetic sources,
such as electrosurgical equipment, or in the presence of computed tomography (CT) equipment.
Do not use the instrument in the presence of magnetic resonance imaging (MRI) equipment. MRI equipment
may cause an induced current to the oximetry sensor, resulting in patient injury.
If the PC and/or the printer connected to MIROxi come into contact with an area containing patient data, ref.
directive EN 60601-1-1, it is necessary that they conform to the directive EN 60601-1.
For the recycling of the MIROxi, the accessories, any plastic consumable materials as well as the battery,
use only the appropriate containers or return all such parts to the dealer or to a recycling centre. All
applicable local regulations must be followed.
If any of these rules are not followed then MIR will decline all responsibility for any direct or indirect
damages, however caused.
Use only the battery type indicated in the § Technical specifications.
Remove the battery from the device if the machine is not used for a long period (several months).
The instrument may be powered through a PC by a USB cable. By this means, the device works both on line
with the PC, or individually powered by the PC.
Keep the device out of reach of children and of any person with mental handicap.
1.3 Unforeseen errors
In case the device internal memory data are damaged, when the device is switched on, the following message appears:
Error on RAM memory
Recovery data
Please wait
If data are successfully recovered then the device completes the standard switch on process, otherwise please contact
an authorised technical assistance point or the manufacturer.

MIROxi User Manual cod. 980265 Rev 1.6 Page 7 of 32
In the case of a problem with the device, a message indicating the nature of the problem will appear on the screen,
together with a warning “beep”.
Operation of the device beyond its declared life (see 1.6 Technical Specifications) could provoke a loss of data in the
memory of the device (SRAM memory).
Errors in measurement or in interpretation can also be caused by:
•use by non-qualified or non-trained personnel, lacking ability or experience
•user error
•use of the instrument outside the guidelines described in this Manual
•use of the instrument even when some operational anomalies are encountered
•non-authorised servicing of the instrument.
1.4 Labels and symbols
1.4.1 Identification label
The label shows:
•Serial number of the device
•Product name
•Name and address of the manufacturer
•Electrical safety symbol
•CE mark in compliance with the Directive 93/42 EEC.
1.4.2 CE mark for medical devices
0476
This product is certified to conform to the Class II requirements of the 93/42/EEC medical device directive.
1.4.3 Electrical safety symbol
In accordance with the IEC 60601-1 Standard, this product and its component parts are of type BF and therefore
protected against the dangers of direct and indirect contact with electricity.
1.4.4 Warning symbol for the RS232 serial port
RS232
For connection to other devices such as PC or printer.
Use only the serial cable supplied by the manufacturer and observe the safety regulations of IEC 60601-1-1.
1.4.5 Warning symbol for the USB serial port
For connection to other devices such as PC or printer.
Use only the serial cable supplied by the manufacturer and observe the safety regulations of IEC 60601-1-1.
1.4.6 Warning symbol for the SpO2 port for oximetry
SpO2
1.4.7 Warning symbol for the WEEE
As laid down in the European Directive 2002/96/EEC requirements regarding the disposal of electrical and electronic
devices (WEEE), at the end of its useful life this device must not be thrown away with normal domestic waste as it

MIROxi User Manual cod. 980265 Rev 1.6 Page 8 of 32
contains materials which would cause damage to the environment and/or represent a health risk. Instead it must be
delivered to a WEEE authorised collection centre, where the device will be disposed of correctly.
An alternative is to return the device without charge to the dealer or distributor when a new equivalent device is
purchased.
Due to the materials used in the manufacturing of the device, disposing it as a normal waste product could cause harm to
the environment and/or to health.
Failure to observe these regulations can lead to prosecution.
1.4.8 FCC Warnings
FCC ID:TUK-MIR023
MIROxicomplies with Part 15 of the FCC Rules. The correct operation is subject to the following conditions:
(1) this device must not cause harmful interference
(2) this device must accept any interference received, including interference that may cause undesired operation.
Any modifications not expressly approved by the manufacturer could void the user's authority to operate the equipment.
NOTE: This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
•Consult the dealer or an experienced radio/TV technician for assistance.
Labels and symbols are displayed on the device like shown in the following images:
1.5 Product description
MIROxi is a pocket oximeter. It can operate in stand alone mode and it can be connected to a PC or to a printer using
any one of several available connection methods: RS232, USB, Bluetooth.
MIROxi is specifically designed to measure and to monitor the saturation of oxygen in the blood and the heart beat. The
device has an internal memory sufficient for over 1000 hours (or 40 days) of oximetry monitoring.
MIROxi is a powerful and compact measurement device, intended for use by a respiratory specialist or by a suitably
trained generalist.
MIROxi is able to transfer the stored test data through an (optional) simple acoustic coupling to a PC, so the patient can
send test data by phone to the doctor. In this way the doctor can check the patient’s condition remotely.
MIROxi can also be connected to a PC (or to another computerised system) to configure the system. All oximetry test
results plus the related subject details stored inside the device can be transferred from the device to the PC and then
viewed on the PC.
The connection to the PC can be made in the following ways:
•through the RS232 port
•through the USB port
The device has two batteries:

MIROxi User Manual cod. 980265 Rev 1.6 Page 9 of 32
•Main power: AAA 1.5V battery (4 batteries are required)
•Memory back up: lithium battery type CR2032 of 3V. The battery life is about 10 years, depending on the use of the
device
1.6 Technical specifications
A comprehensive description of the main features of the device and of the oximetry sensor follows.
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 analysis period BPM
BPM Max Maximum pulse frequency during the analysis period BPM
BPM Mean Average pulse frequency during the analysis period BPM
Recording time Total time of SpO2 measurement 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 \
N°Events > 120 BPM Tachycardia events during the entire analysis period \
Tot. Desat. Events Desaturation events during the entire analysis period \
ODI Desaturation events per hour of analysis 1/h
Mean Duration Average duration of desaturation events s
Longest Duration Longest duration of desaturation events s
Desaturation Peak Minimum Sp02 during desaturation events %
Mean Desaturation Average duration of desaturation events %
Mean Drop SpO2 Average SpO2 fall (with respect to baseline) during the desaturation events %
Max Drop SpO2 Maximum fall of SpO2 (with respect to baseline ) during the desaturation
events %
N°Pulse Variations Variation of pulse frequency events during the entire analysis period \
Pulse Index Variation of pulse frequency per hour of analysis 1/h
NOD 4% Time passed with SpO2 < 4 % with respect to SpO2 base for continual periods
above 5 minutes \ hh:mm:ss
NOD 89% Time passed with SpO2 < 89 % for continued periods above 5 minutes \ hh:mm:ss
NOD 90% Time passed with SpO2 < 90 % for continued periods above 5 minutes with
minimum value < 86 % (Nadir) \ hh:mm:ss
∆=DELTA
Parameters measured for six minute walk test analysis:
SYMBOL DESCRIPTION Units
SpO2 Baseline SpO2 average before walking %
SpO2 End SpO2 after walking %
SpO2 Min SpO2 minimum during walking %
SpO2 Max SpO2 maximum during walking %
SpO2 Mean SpO2 average during walking %
BPM Baseline Average pulse frequency before walking BPM
BPM End Pulse frequency after walking BPM
BPM Min Pulse frequency minimum during walking BPM
BPM Max Pulse frequency maximum during walking BPM
BPM Mean Pulse frequency average during walking BPM
T < 90% Time passed with SpO2 < 90 % % hh:mm:ss

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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
T∆2 [∆SpO22%] Time passed during walking test with SpO2 < 2 % with respect to SpO2 base hh:mm:ss
T∆4 [∆SpO2 4%] Time passed during SpO2 walking test < 4 % with respect to SpO2 base hh:mm:ss
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 \
N°Events > 120 BPM Tachycardia events during the entire analysis period \
Recording time Total time measure of SpO2 hh:mm:ss
Baseline Time Duration of baseline phase hh:mm:ss
Walking Time Duration of walking phase hh:mm:ss
Recovery Time Duration of recovery phase hh:mm:ss
Predicted Predicted standard distance m
Pred. Min Predicted minimum distance m
% Predicted Standard % in variations of the distance covered with respect to the predicted standard
distance %
% Pred. Min % of variations of distance covered with respect to the predicted minimum
distance %
AUC/Distance Area under SpO2 curve base relative to the distance covered \
Dyspnea Borg CHG Variation in grade of dyspnea during walking \
Fatigue Borg CHG Variations in level of fatigue during walking \
∆=DELTA
*Here follows a description of the method for calculating the area below the SpO2 baseline curve:
Parameters requested for six minute walk test analysis
SYMBOL DESCRIPTION Units
Dyspnea Borg Baseline Grade of dyspnea before walking \
Dyspnea Borg End Grade of dyspnea after walking \
Fatigue Borg Baseline Level of fatigue before walking \
Fatigue Borg End Level of fatigue after walking \
Walked Distance covered during walking m
Parameters measured with SpO2 Analysis:
SYMBOL DESCRIPTION Units
SpO2 Baseline SpO2 Average during first three minutes %
SpO2 Min SpO2 Minimum during analysis period %
SpO2 Max SpO2 Maximum during analysis period %
SpO2 Mean SpO2 Average during analysis period %
BPM Baseline Average pulse frequency in the first 3 minutes BPM
BPM Min Minimum pulse frequency during the analysis period BPM
BPM Max Maximum pulse frequency during the analysis period BPM
BPM Mean Average pulse frequency during the analysis period BPM
Recording time Total SpO2 measurement time 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 analysis period \
N°Events > 120 BPM Tachycardia events during the entire analysis period \
∆=DELTA