SAVING Savvy ECG User manual

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User’s Manual
Savvy
Personal CARDiac activity monitoring system - (PCARD)
Osebni sistem za spremljanje srčne aktivnosti - PCARD
Version: UM 1.19.3 Revision date: 31.05.2017

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Sales and Service Information
SAVING d.o.o. sales and service centre network is world-wide.
Headquarters Address
SAVING d.o.o.
Finžgarjeva 4
SI-1000 Ljubljana,
Slovenia
Phone: [phone]
E-mail: [e-mail]
Web: www.savvy.si
READ THIS FIRST
1. First read the Section 3.1. about General warnings.
2. Put the Savvy sensor into charging dock.
3. Connect charging dock to recommended charger and to the power supply (220V/110V).
4. The charging process takes approximately 2 hours.
5. Read Section 5 about device setup.
6. Install the mobile application MobECG on your PDA from Google Play Store
7. After the Savvy is charged, put the electrodes according to the instructions in Section
5.2.
8. Activate the mobile ECG service according to the instructions in Section 6.1.
9. Initialize measurements according to the instructions in Section 6.2.
10. Create ECG REPORT as described in Section 6.2.4

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Contents
1. INTRODUCTION ......................................................................................................................................... 5
2. TERMS AND CONDITIONS .......................................................................................................................... 5
3. SAFETY ....................................................................................................................................................... 7
3.1. GENERAL WARNINGS .............................................................................................................................. 7
3.2. PRECAUTIONS ....................................................................................................................................... 8
3.3. INTENDED OPERATOR .............................................................................................................................. 9
4. PRODUCT DESCRIPTION AND TECHNICAL SPECIFICATIONS ........................................................................ 9
4.1. BASIC EQUIPMENT.................................................................................................................................. 9
4.1.1. Savvy sensor ................................................................................................................................. 9
4.1.2. Charging dock ..............................................................................................................................10
4.1.3. Charger .......................................................................................................................................10
4.1.4. Mobile application - MobECG .......................................................................................................10
4.2. ACCESSORIES OF THE MEDICAL DEVICE ........................................................................................................11
4.2.1. Personal Digital Assistant (PDA) ...................................................................................................11
4.2.2. Self-Adhesive Electrodes (SAE)......................................................................................................11
4.3. LABELS AND GRAPHIC SYMBOLS ................................................................................................................12
4.4. ENVIRONMENTAL AND TRANSPORT CONDITIONS ...........................................................................................15
5. DEVICE SETUP ...........................................................................................................................................15
5.1. INSTALLATION OF THE MOBILE APPLICATION .................................................................................................15
5.2. POSITIONING OF THE ELECTRODES .............................................................................................................15
6. DEVICE OPERATION ..................................................................................................................................17
6.1. INITIALIZATION .....................................................................................................................................17
6.1.1. Activating the MobECG service.....................................................................................................17
6.1.2. Selection of Savvy sensor .............................................................................................................17
6.2. MEASUREMENT/ACQUISITION .................................................................................................................18
6.2.1. Initiation of measurements ..........................................................................................................18
6.2.2. During measurement ...................................................................................................................19
6.2.3. Mark Event ..................................................................................................................................19
6.2.4. ECG REPORT ................................................................................................................................20
6.2.5. ECG graph ...................................................................................................................................21
6.2.6. Pause ECG graph during measurement ........................................................................................22
6.2.7. Application screen lock ................................................................................................................22
6.2.8. End measurements ......................................................................................................................22
6.3. APPLICATION SETTINGS ...........................................................................................................................23
6.4. FILE TRANSFER .....................................................................................................................................23
6.4.1. Transfer of the measurements on a storage server .......................................................................23
6.4.2. Manual transfer ...........................................................................................................................24
6.5. APPLICATION UPDATE ............................................................................................................................24
6.6. APPLICATION INFO ................................................................................................................................24
6.7. TURNING OFF THE DEVICE .......................................................................................................................24
6.7.1. Continuing measurement in the background ................................................................................24
6.7.2. Exiting from the MobECG application ...........................................................................................25
6.7.3. Removal of the electrodes ............................................................................................................25
7. PROGRAM FOR MEASUREMENT VISUALIZATION – VISECG .......................................................................25
7.1. SUMMARY OF MEASURED DATA ................................................................................................................25
7.2. ADDITIONAL ANALYSIS ............................................................................................................................26
8. INDICATIONS AND CONTRAINDICATIONS .................................................................................................27
8.1. INDICATIONS ........................................................................................................................................27
8.2. CONTRAINDICATIONS .............................................................................................................................27

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9. MAINTENANCE .........................................................................................................................................27
9.1. CHARGING THE SAVVY SENSOR BATTERY .....................................................................................................27
9.2. VISUAL INSPECTION ...............................................................................................................................28
9.3. CLEANING INSTRUCTIONS ........................................................................................................................28
9.4. MOBECG APPLICATION - USER MAINTENANCE .............................................................................................28
9.5. PRODUCT LIFE AND STORAGE ...................................................................................................................29
9.6. EMC INFORMATION ..............................................................................................................................30
10. TROUBLESHOOTING .................................................................................................................................32
11. WARRANTY INFORMATION ......................................................................................................................32
12. MANUFACTURER DATA ............................................................................................................................32

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1. Introduction
The medical device is a Personal device for CARDiac activity (PCARD), named and referenced as
SAVVY in the remainder of the document. The SAVVY medical device constitutes from a as Savvy
sensor, charger, charging dock and mobile application (MobECG). The core of the system is a
small and light (21g) Savvy sensor, fixed to the skin using standard self-adhesive electrodes. The
Savvy sensor measures the user's differential ECG between two proximal electrodes on the
distance of approx. 8,5 cm. The moderate resolution ECG is suitable for long-term personal
cardiac activity monitoring during every-day or sport activities, and for clinical use. With a single
charge of the built-in battery, the Savvy sensor can run continuously for up to seven days and
at least 14 days in stand-by mode. The SAVVY sensor can be recharged using a charging dock
station that comes with it. The measurements from the Savvy sensor are transferred through a
build-in low power Bluetooth BT4.0 radio to the mobile application on a personal digital
assistant (PDA), i.e. smartphone or tablet, which provides storage and graphical presentation
of the measurements. User can be a healthy person, person under screening or a patient. The
usage of the MD is not limited by age, sex, body weight or height and other personal
characteristics.
A Patient can generate ECG REPORT on mobile device in PDF format, which can be printed out
or sent by e-mail to the patient Doctor for further diagnose.
2. Terms and conditions
1. Manufacturer and distributor Saving d.o.o., Finžgarjeva 4, Ljubljana, has, with the
participation of the Jozef Stefan Institute in Ljubljana, developed the device with the
commercial designation Savvy, in accordance with technical data which is an integral part of the
user manual of the device.
In accordance with Directive 93/42/EEC on medical devices with a valid amendment, Directive
2007/47/EEC, the developed device is intended to monitor cardiac activity in everyday life, and
accordingly with the introductory Directives classified as an active non-invasive medical device
labeled IIa.
Medical device Savvy is intended for daily individual use of potential buyer, user, for heart
activity monitoring through a single-channel recording of ECG.
Medical device is not intended for a treatment and is not a diagnostic tool in accordance with
the rules of the medical profession, as it is stated in the second paragraph of this document
(Directive EEC).
In the event that the user feels uncomfortable with regard to cardiac function, he must urgently
seek medical assistance, regardless of the conditions shown by the medical device Savvy.
2. Medical device Savvy cannot function independently. It is directly wirelessly connected to a
smartphone or tablet, provided it is in the immediate vicinity. Measured conditions of cardiac
activity are transmitted to the memory unit with the specific program.

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3. Data transfer is carried out with the direct transmission of data from your smartphone or
tablet or with the transfer of data to a USB flash drive.
4. The price of a medical device Savvy is determined according to valid price list of the seller.
5. In accordance with warranty statement the seller gives one-year warranty for the medical
device Savvy, which is the subject of the sale.
6. An integral part of the contractual relationship is user manual of the medical device Savvy,
which together with the general terms and conditions form an integral part of each product
that is the subject of sale.
7. With the purchase of the device every customer obtains also user manual, general terms, pin
code and the warranty statement.
8. When you first launch mobile application it is required to confirm the statement that the
respective buyer is aware of the general terms and conditions of use, otherwise the app cannot
be used.
9. In accordance with the provisions of the protection of personal data, with the acceptance of
the medical device Savvy the respective buyer allows seller to use and process their personal
data and communication about possible novelties, new scientific knowledge, a possible upgrade
of the system for the said product and potential vigilance cases. Manufacturer and seller of
Saving d.o.o. are in no way obligated to enable access for any system upgrades of said product
to customers or users.
10. When buyer pays the invoice, he guarantees that the device is intended solely for his
personal or pin code holders use and is not transferable to third parties. The device is according
to an explicit request by the seller not transferable and cannot be left to third parties by the
buyer.

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3. Safety
3.1. General warnings
WARNING! The SAVVY medical device is not intended for individuals with potentially life-
threatening arrhythmias or individuals who require inpatient or hospital monitoring.
WARNING! The user must carefully read the instructions for use in the user’s manual. The
user should be able to operate smart phones or tablets and understand the user’s manual. If
this is not the case, the device should be used only with the assistance of qualified caregivers
who fulfil the above basic requirements.
WARNING! The SAVVY medical device may not meet its performance specifications if stored
or used outside the specified temperature and humidity ranges.
WARNING! The SAVVY mobile application may not function properly if not installed on the
recommended PDA running recommended mobile operating system, defined in technical
specifications.
WARNING! The SAVVY mobile application may stop functioning properly because of
intermittent faults in the PDA, wireless connection or Savvy sensor. See troubleshooting section
for further instructions.
WARNING! Individuals with known allergies or hypersensitivities to adhesives or hydrogel
(electrode material) should not use the SAVVY medical device.
WARNING! To minimize skin irritation, do not place the Savvy sensor over broken or
damaged skin.
WARNING! The Savvy sensor is water resistant and it can be worn while showering, but do
NOT submerge it in water (for example, in a bath or hot tub, or while swimming).
WARNING! Do not dispose this product as ‘unsorted municipal waste’. Prepare it for reuse
or separate collection as specified by Directive 2002/96/EC of the European Parliament and the
Council of the European Union on Waste Electronic and Electrical Equipment (WEEE).
WARNING! To protect against electrical shock due to leakage currents, use only SAVVY
charging dock with recommended AC/DC power supply defined in technical specifications.
WARNING! When the SAVVY sensor is not in use, it shall be placed in the charging dock and
in charging mode in order to ensure that the battery will not be discharged.
WARNING! Use proper, non-aggressive and biocompatible cleaning agents. It is allowed to
wipe the device with wet cloth.
WARNING! Measurements obtained by SAVVY equipment/system are intended for use by
healthcare professionals only.

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WARNING! This equipment/system may cause radio interference or may disrupt the
operation or can be disrupted by external nearby equipment.
WARNING! The housing of the Savvy sensor is not UV resistant which can cause
depigmentation.
WARNING! As in all ECG measurement procedures that use electrode contact to the skin,
body movements, muscle activities, or lose contact between the electrodes and the skin are
expected to influence the quality of the measurements.
WARNING! The user must keep the PDA with the SAVVY mobile application in his/her vicinity
during measurements. The Savvy sensor must be kept in the Bluetooth range of the PDA
(approximately 10 meters, but can vary depending on the PDA and the surrounding). In case of
exceeding this distance, the user simply needs to move the equipment within range and the
connection will be automatically re-established.
WARNING! Savvy is not recommended for use closer than 4 cm from other devices.
WARNING! Only prescribed charger can be used. Using other chargers can cause
unacceptable risks (related to electrical safety and electromagnetic compatibility).
WARNING! Mains plug of battery charger is considered as disconnecting device.
3.2. Precautions
• If you start to feel itching or any kind of discomfort after longer use of the same electrodes,
fix the Savvy sensor on another recommended position and/or replace the electrodes.
• The Savvy sensor should be removed prior to external defibrillation or an MRI scan.
• Make sure that the PDA has enough free storage space (at least 2 GB) for saving the
measurements.
• Visually check from time to time the quality of the ECG signal.
• Users of the SAVVY mobile application should be aware that the PDA can represent a weak
spot in the security chain of the system. By an appropriation of the PDA, a potential attacker
could get access to all of the measurements (which can be considered as personal data)
stored there. Make sure to secure your PDA, if necessary, to an adequate level using the
security features of your PDA.
• See precautions to be taken to prevent adverse events to the Patient and Operator due to
electromagnetic disturbances in table in item 9.6.

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3.3. Intended operator
The user itself can normally act also as the operator; additionally, a caregiver can act as an
operator by assisting the user. In both cases, the operator should fulfil the following issues:
a) Education:
- Not prescribed, see item b),
b) Knowledge:
- Literacy,
- Understanding of all information in the User’s manual,
- Recognizing symbols on screen,
- Computer literacy,
c) Skills:
- Placing of two self-adhesive skin electrodes,
- Fixation of the Savvy sensor on the two electrodes,
- Charging the Savvy sensor battery,
- Managing smart phone and/or tablet basic functions
- Managing adequate OS
d) Language understanding
- Slovenian or English
- At least: language used in the User’s manual
e) Experience
- Recognition of usual graphical shapes of recorded ECG signal is advisable,
- No other special experience is required.
4. Product description and technical specifications
4.1. Basic equipment
4.1.1. Savvy sensor
The core of the SAVVY system is a small and light Savvy sensor (see Figure 1), fixed to the skin
of the user by two standard SAE. The Savvy sensor is covered with a waterproof and
biocompatible plastic housing. The flexible mechanical construction of the Savvy sensor housing
and the flexible connection to the SAE enable adaption of the distance between two SAEs, which
prevents an unexpected disconnection of the Savvy sensor during user's movements. The ECG
is recorded with a moderate resolution of 125 samples per second.
Figure 1: Savvy sensor in biocompatible housing with two self-adhesive electrodes attached.

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4.1.2. Charging dock
The charging dock (see Figure 2) is essentially a cable extension from charger and the Savvy
sensor.
Output VDC: 6,0 V
Max. load: 150 mA
Figure 2: Savvy sensor placed in the charging dock.
4.1.3. Charger
The charger must have the following characteristics:
Model name: VEL05US090-EUJA
Input voltage: 90-264 VAC, Input frequency 47-63Hz
Output VDC: 9,0 V, Max. load: 550 mA, Output power: 6 W, Load regulation: < 5%
Switch type power supply
Operating Temperature range: -0˚C - +60˚C, Storage Temperature: - 40˚C - +85˚C
Efficiency: 78%. Insulation class: II
Electrical safety standard: EN 60950 – 1:2006 +A11:2009+A1:2010-A12:2011
EMC standards tested
• EN61000-3-2, 2006+A2:2009, class A, • EN61000-3-3:2008, class A
• EN61000-4-2 2, • EN61000-4-3 3 A, • EN61000-4-4
• EN61000-4-5, • EN61000-4-6, • EN61000-4-8, • EN55024:2010
Output terminals
• Connector type barrel Jack; 5.5 x 2.1 x 12 mm DC Jack
Dimensions without plug (L×W×H): 55.1 x 24.1 x 35.49 mm
Weight: 80 g
Declaration Reference: Z1A 14 07 57396 271
4.1.4. Mobile application - MobECG
The MobECG installed on the PDA main functionalities are:
• Establishing communication between the Savvy sensor and a PDA.

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• Visualization of up to 10 seconds of the ongoing measurement.
• Storing the measured data on the PDA storage.
• Interaction with the user.
• Transferring the measurements to a secure storage server or cloud platform.
4.2. Accessories of the medical device
Accessories are sold separately and should be provided by user.
4.2.1. Personal Digital Assistant (PDA)
PDA is an electronic device that runs Android operating system, such as a tablet or a
smartphone. A PDA is compatible with the SAVVY software, if it includes:
• Hardware for Bluetooth 4.0 radio communication,
• Android versions 4.3 – 6.0,
• A colour screen,
• At least 2 GB of free storage space,
• Intermittent or permanent Internet connection, for example Wi-Fi radio, Ethernet port,
LTE capabilities, etc.; or other means of file transfer between a PDA and a PC,
• A means of point and click user input, such as touchscreen or computer mouse,
• A means of ASCII symbol set input, such as touchscreen or keyboard.
Note that the MobECG application is supported only on Android versions 4.3 - 6.0. The
manufacturer gives no guarantees that MobECG will work on later versions of Android until
those are thoroughly tested.
Shape, colour and other characteristics of PDA are not prescribed. Off the shelf devices can be
used. Two examples are shown in Figure 3.
Figure 3: Two examples of Android based personal digital assistants: smart phone (left) and tablet (right).
4.2.2. Self-Adhesive Electrodes (SAE)
SAE represent the mechanical and electrical interface between the Savvy sensor and skin. They
holds the weight of the Savvy sensor and therefore they have to be large enough with diameter
or edge dimensions > 50 mm. The SAE must be intended for long-term use which is > 48 hours
and must be medically certified, especially regarding the biocompatibility standards in order to
prevent skin inflammation or allergies. Below are two examples of recommended SAEs:

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1. SKINTACT monitoring ECG electrodes (http://www.skintact.com/48.0.html, see Figure 4
(left)).
Type T-60
Gel Aqua-Wet, Silver/Silver Chloride (Ag/Ag Cl)
Backing Microporous tape
Dimensions 60 mm
Suggested Use Long term (> 48 hours)
2. NIKOMED monitoring ECG electrodes (www: http://www.nikomedusa.com/stress_lab.cfm),
see Figure 4 (right).
Type No. 2015
Gel Foam, solid gel, Silver/Silver Chloride (Ag/Ag Cl)
Backing Clear-Tape, Solid Gel
Dimensions 50 mm
Suggested Use Long term (> 48 hours)
Figure 4: Two examples of recommended self-adhesive electrodes (SAE).
Equivalent or better electrodes must be purchased from a manufacturer who possesses
required evidence for the requested quality. While purchasing electrodes, evidence documents
for quality are necessary. Alternative electrodes are matter of a safety testing according to EN
60601-1 and EN 60601-2-47.
4.3. Labels and graphic symbols
The following overview shows the safety symbols and pictograms used in this handbook.
Refer to instruction manual / booklet.

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Consult the instructions of the device for information on how to properly use it.
Type BF medical equipment
"Keep dry".
Both temperature limits should be noted next to the upper and lower
horizontal lines.
Both humidity limits should be noted next to the upper and lower horizontal
lines.
Symbol accompanied by the name and address of the manufacturer.
Waste separation for batteries.
Waste separation for electronics.
Medical equipment with intended radiation (communication purposes)
CE marking with number of Notified body; SIQ, number 1304
Device labelling

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Figure 5: Savvy labeling
Figure 6: Charging dock labeling
Figure 7: Labeling of packaging

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4.4. Environmental and transport conditions
Environmental and transport conditions for the BG and the charging dock are given in the table
below:
All remaining HW components of SAVVY (SAE, PDA) should obey the conditions prescribed by
manufacturers.
5. Device setup
5.1. Installation of the mobile application
Install the mobile application MobECG on your PDA from Google Play Store and upon
installation confirm all requested permissions. If the user is not experienced with mobile
applications, should seek assistance from an operator. After successful installation, the MobECG
application icon should appear on the PDA screen. Check regulary for updated version on
Google play Store.
Note: in case any function is not understood please contact supplier or producer.
5.2. Positioning of the electrodes
Before initiating the measurements, fix the Savvy sensor to the skin using standard self-
adhesive electrodes. First, while the electrodes still have a protective foil, attach them on the
Savvy sensor. Then, remove the protective foil from the electrodes and fix the Savvy sensor on
cleansed skin. The Savvy sensor should be placed on an appropriate position on the chest where
it does not cause discomfort for the user and where the ECG waves are clearly visible. Figure 8
shows several recommended positions of the electrodes, which should provide quality ECG
measurements. Additionally, the operator can suggest placing the electrodes on a specific
position on the body according to a specific user treatment.
Environmental conditions
NORMAL OPERATION
TRANSPORTATION AND
STORAGE
Environmental temperature:
-10 0C to +40 0C
-20 0C to +70 0C
Relative humidity:
10 % to 95 % (limited
condensation)
10 % to 95 % (limited
condensation)
Atmospheric pressure:
700 – 1060 hPa (mB)
700 – 1060 hPa (mB)

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(1)
(2)
(3)
(4)
(5)
(6)
(7)
Figure 8: Recommended electrode positions on the body.

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6. Device operation
6.1. Initialization
In the following, we show a symbolic design of the MobECG application, because the actual
implementation is Android OS dependant.
6.1.1. Activating the MobECG service
Upon installation, the MobECG service is activated with tap on the application icon. When
activated, the MobECG application icon will appear on the top task bar of the PDA. For transfer
of the measurements from the Savvy sensor to the PDA, MobECG requires that the Bluetooth
on the PDA is activated. If not, the application displays a warning that it wants to turn on
Bluetooth. Make sure you allow for the Bluetooth to be turned on.
At start-up, the overview screen of MobECG is displayed (Figure 9a). This is considered as the
main screen where you can control the measurements (start and stop), and where details about
the measurement and paired Savvy sensors are displayed. All other options of the application
are available by clicking on the menu at the top left corner (Figure 9b), will appear.
NOTE: The main application screen is the only one that cannot be rotated.
(a) (b)
Figure 9: MobECG symbolic design of (a) the main overview screen and (b) the application menu.
6.1.2. Selection of Savvy sensor
The first step after starting MobECG is to connect the Savvy sensor placed on the body with the
application. Click on “Select Savvy” in the application menu. The application will open a screen
where it scans for wireless devices in the vicinity of the PDA (Figure 10). The scanning is
automatically refreshed with the devices with the highest signal strength floating at the top of
the list. You can pause the sorting of list items by clicking on the button named “STOP SORTING”.
To select your Savvy sensor, identify its name and MAC address on the list and click on it. A
Savvy sensor authorization windows pops up (Figure 10b). Enter the 4-digit PIN provided at the
end of this User’s manual and click “OK”. After successful authorization, the Savvy sensor is
highlighted yellow (Figure 10c).
NOTE: The PIN is requested only the first time when the Savvy sensor is paired with the PDA.

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6.2. Measurement/Acquisition
6.2.1. Initiation of measurements
After the Savvy sensor is selected, go back to the main screen of the application by clicking
“Back” on the PDA or selecting “Overview” from the application menu. The Savvy sensor is listed
in the Select Savvy section of the main screen, displaying its status, signal strength and battery
level (Figure 11a). Before a measurement is initiated, the status of the Savvy sensor is
disconnected.
To start the measurement, click on the “Start” button. After a short time, the sensor connects
to the PDA. The status of the Savvy sensor changes to “Connected”. When a measurement is in
progress, the MobECG application icon in the task bar changes in an icon shaped like one ECG
beat. Two icons appers on “action bar” – seen on all menus: an icon of BPM and an icon of Mark
event, by pressing on bpm icon will open Ecg graph, pressing on Mark event will open Mark
event menu.
(a) (b) (c)
Figure 10: Symbolic design of the Savvy sensor selection.
(a) (b) (c)
Figure 11: Symbolic design of the main screen (a) after selection of the Savvy (b) during measurement. (c)
Current condition options.

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6.2.2. During measurement
The main screen during measurement is shown in Figure 11b. During measurement, the main
information about the measurement is displayed in the Measurement Control section of the
main screen: status (running/not running), start of the measurement (date and time), running
time, and quality. Below the Measurement Control, the hearth activity is animated with a small
symbolic beating heart and numerical value of BPM (Beats per Minute).
Heart rate (HR) is calculated from the last 10 seconds of measurement (this is the default
value. Under “Settings” menu interval can be changed from 5 to 30 seconds. In case less than
5 beats are detected in the HR value in this interval, “NA” will be shown instead of the HR
value. The HR value is furthermore limited to between 20 and 250. In case calculated value is
outside those limits, “NA” will be shown on the user interface.
NOTE: The BPM detector can report incorrect values in the presence of excessive noise. Please,
consider the shown BPM value as informative.
6.2.3. Mark Event
This option is accessible by selecting “Mark Event” from the application menu. A measurement
must be started to use this feature. The application offers the option to mark events or specific
moments during a measurement, e.g., when some activity is initiated, or when some
inconvenience is felt. The button for marking events is also available from the Measurement
Control on the main screen, next to the heart icon, after the measurement has been started. To
mark an event, select either a predefined event or a custom event. For predefined events, click
on one of the displayed icons and then on the save button (Figure 11c). For a custom event,
either enter the text into the text field or leave it empty and then click on the save button.
Saving the event will change the screen back to the “Overview”.
ECG REPORT can be generated either from the Mark Event menu or from the “ECG Reports”
menu. The option in the “Mark Event” menu is purely for convenience and produces identical
reports. Note that when triggered from the “Mark Event” menu, or from the ongoing
measurement in the “ECG Reports” menu, application MobECG will first wait until the desired
interval of measurement is recorded and only then start report generation.
Before generating the report, MobECG will present the “Additional report information” dialog,
where additional information for the physicians analysing the report, might be presented. Note
that information typed in the fields is optional, the information entered will be used only on the
report that is being generated, and will be only cached by the MobECG for the use in the same
dialog the next time a report is requested. This dialog also gives the option to change the default
interval length of ECG plotted on the report. Note that the report will include the ECG from ¹/₂
interval before the event to ¹/₂ of interval after the event is marked.
After confirming the dialog, the report will be generated in the background. When it is
complete, a notification will appear, with options for viewing or sharing the report. At this point
the report will also be stored on the PDA storage to be viewed or shared later. The default
storage location is in Documents/MobEcg/Reports/.
NOTE: All feeling icons may indicate potential hazard states. The SAVVY system does not
prevent the consequences of the medical emergencies associated with the symbols.

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6.2.4. ECG REPORT
This option offers a list of “Measurements” (Figure 12a) and a list of “Reports” (Figure 13b), as
two tabs of a tabbed interface.
The tab “Measurements” comprises a list of past and ongoing measurements, and the stored
events within those measurements. Measurements are displayed with their start time, end time,
and duration. If any events were marked during a given measurement, those events are
displayed within the measurement's area with an icon and event text. The icon for event is the
is the same that was used when marked the event, or an icon of a heart, if the event was marked
as custom text event.
Selecting an existing event gives the option of generating a short ECG report around that event.
Selecting a measurement displays a slider for picking a time from the measurement time
interval and generating a report around that time.
Sliding the tab “Measurements” (Figure: 12a) to the left brigs the tab “Reports” (Figure: 12b)
into the view. This tab comprises a list of reports generated so far. Selecting a given report will
open that report in the default PDF viewer, while selecting icon will bring forward all the
available sharing options (Figure 12c). Long pressing on a report will show the option of deleting
that report.
a.) b.) c.)
Figure 14: ECG REPORTS: (a) Measurements (b) Reports (c) PDA distribution options
The ECG report is a PDF file, that contains an interval of ECG measurement around a picked time
or around a marked event. Note that no diagnostic information is presented on the report, only
the pure and unmodified ECG measurement, together with the user-provided additional
information.
The report comprises the head and the ECG measurement on multiple pages on the size of
standard A4 paper. Head is filled with information about the user, the measurement, and the
marked event. ECG measurement if plotted in rows of 7,5 seconds each, on top of a blue graph
paper. The dimensions of the plotted ECG, which are also marked on the report, are 10 mm per