Nuvo INVU User manual

NV-UMLS-0001
July 2020
User Manual
User Manual

Disclaimer
Conventions
ii Nuvo Group Ltd.
COPYRIGHT© 2020 BY Nuvo Group Ltd., ALL RIGHTS RESERVED
All Rights Reserved. The disclosure, duplication, distribution or editing of this document or utilization
and editing of the content herein are not permitted unless expressly authorized in writing by Nuvo
Group. All intellectual property rights including those created by patent grant or registrationof a utility
model or a design, are expressly reserved.
NUVO, NUVO and logo, INVU by Nuvo, INVU by Nuvo and logo, INVU, INVU Sensor band, INVU Pro are
Trademarks and/or Registered Trademarks of Nuvo Group Ltd. its subsidiaries or affiliates in the
United States and/or other countries. All other company or product names are the trademarks or
registered trademarks of their respective holders. All rights not expressly granted are reserved.
Nuvo reserves the right to change or improve its products and accompanying technical literature
without specific notice.
All subject information and images used in this document are fictitious. The information and images
do not relate to any persons either living or deceased.
INVU by Nuvo™ is a prescription-based device.
Nuvo Group Ltd.
94 Yigal Alon St.
Tel Aviv 6789155, Israel
Telephone: [phone]
Email: [e-mail]
Website: http://www.nuvocares.com
Catalog No. NV-UMLS-0001
Revision 01, July 2020

Invu by Nuvo™User Manual
Disclaimer
NV-UMLS-0001 iii
Disclaimer
The INVU by Nuvo™ System is a prescription-based device and the associated module system, which
includes the INVU Sensor Band™, mobile application (INVU™ App), INVU Pro web application and the
data analysis and cloud application services (hereafter "INVU by Nuvo™"), should only be used in the
manner specifically set forth in this user manual and/or in the safety information sheet that is supplied
by Nuvo Group Ltd. ("Nuvo Group") together with the INVU by Nuvo™ product. Use of INVU by Nuvo™
in a manner not expressly described in this user manual (which may be updated from time to time by
Nuvo Group) may lead to improper product performance, the potential for hazard, and will void all
warranties of any kind that are extended by Nuvo Group in connection therewith. The safety,
reliability, and performance of INVU by Nuvo™ can only be assured under the following conditions: (i)
The device has been used for its indicated use (see Indications for Use in this User Manual), (ii) this
device has only been used in accordance with the operating instructions contained in this User
Manual, (iii) all fittings, extensions, readjustments, changes, or repairs required for use of INVU by
Nuvo™ have solely and exclusively been carried out by a Nuvo Group authorized representative, (iv)
the user has been registered at Nuvo Group.
For medical questions, please consult a physician, and in the case of a medical emergency,
immediately contact your local emergency services provider.
Neither Nuvo Group nor any of its principals, directors, employees, affiliates, representatives and
assigns shall be responsible in any way for any physical harm and/or property damage arising from the
operation or use of either the INVU by Nuvo™ or this user manual, other than as expressly stated in
the applicable limited warranty (which is contained in the INVU by Nuvo™ User Agreement) or as
mandated by applicable law. Without limiting the foregoing, Nuvo Group makes no warranty of any
kind in regard to this user manual, including but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. In addition, Nuvo Group shall not be liable for
errors contained in this user manual or for incidental or consequential damages in connection with
the furnishing or use of any material contained within this user manual.
Accordingly, the content in this user manual does not and will not form part of any contract between
Nuvo Group and any user of INVU by Nuvo™. No person has the authority to bind Nuvo Group to any
representation or warranty except as either specifically set forth above and/or in the INVU by Nuvo™
User Agreement.
The content of this user manual has been compiled for information purposes only and is subject to
change by Nuvo Group without notice. Any modifications and amendments hereto will be deemed
included in subsequent versions of INVU by Nuvo™ user manual. In addition, the content in this user
manual does not purport to cover all details or variations of INVU by Nuvo™ and does not address
every possible contingency in regard to the use of INVU by Nuvo™.
This user manual contains proprietary information that is protected by international copyright. No
part of this document may be photocopied, reproduced, or translated without the prior written
consent of Nuvo Group. INVU by Nuvo™ is protected by the following patents: US 9392952, US
9572504, US 9642544 and patents pending: 20160270685, 20160270675. Any unauthorized use of
any information and content from the INVU by Nuvo™ user manual is illegal, and violators will be
prosecuted by Nuvo Group.
Please read this user manual thoroughly and feel free to contact our product support team with any
questions at [email protected] or 1-800-554-9041 (USA only).

About this Manual
Conventions
iv Nuvo Group Ltd.
© 2020 Nuvo Group Ltd. All rights reserved. NUVO, NUVO and logo, INVU by Nuvo, INVU by Nuvo and
logo, INVU, INVU Sensor band, INVU Pro are Trademarks and/or Registered Trademarks of Nuvo Group
Ltd. its subsidiaries or affiliates in the United States and/or other countries. All other company or
product names are the trademarks or registered trademarks of their respective holders. All rights not
expressly granted are reserved.
About this Manual
This manual provides a step-by-step guide to using the INVU Sensor Band™ with the INVU™ App.
Please read this user manual carefully before starting to use the INVU by Nuvo™ System and its INVU™
App. If any part of this manual is unclear, please contact Nuvo Group customer support for assistance
at:
•email: suppor[email protected]m or 1-800-554-9041 (USA only).
We recommend that you always keep this manual for quick reference.
Conventions
The following symbols have been inserted on the left-hand side of this manual for more
comprehensive user experience:
Symbol
Description
Note: Information given in a "note" symbol provides information that is useful to
know, such as, a supplementary operating procedure, or other information.
Caution: cautions are used to warn you of a potentially hazardous situation which, if
not avoided, may result in loss of data, or may cause minor personal injury,
equipment/property damage, or impaired image quality.
Do not proceed beyond a CAUTION message until you fully understand and observe
the indicated conditions.
Warning: warning messages indicate a potential hazard or unsafe practice which, if
not avoided, could result in misdiagnosis, mistreatment, equipment damage, death or
serious injury.
Do not proceed beyond a WARNING message until you fully understand the
conditions and you have taken the appropriate preventive action.
Important Notes
•The content of this manual is subject to change without notice.
•Some of the illustrations or descriptions in this manual may vary due to changes or
improvements in the INVU™ App, Android device and Android Operating System
version, or iPhone device and iOS version.

Invu by Nuvo™User Manual
Table of Contents
NV-UMLS-0001 v
Table of Contents
1Introduction ............................................................................................ 1
1.1 Proper Use of INVU by Nuvo™ and this Manual.....................................................1
1.2 INVU by Nuvo™ Overview.......................................................................................1
1.3 INVU by Nuvo™ Technology....................................................................................2
1.4 Labels and Symbols.................................................................................................3
2Safety ...................................................................................................... 5
2.1 Indication Of Use.....................................................................................................5
2.2 Contraindications....................................................................................................5
2.3 Limitation of Use.....................................................................................................6
2.4 Adverse Events........................................................................................................6
2.5 General Warnings and Cautions .............................................................................7
2.6 INVU by Nuvo™ Usage Restrictions ........................................................................8
2.7 Regulatory Classification.........................................................................................8
2.8 Complying with Standards ......................................................................................8
3Know Your INVU Sensor Band™............................................................... 9
3.1 INVU Sensor Band™ Package Contents...................................................................9
3.2 INVU Sensor Band™ Components.........................................................................10
3.3 Charging the INVU Sensor Band™ Battery............................................................13
3.4 Standard Operation Duration ...............................................................................14
4First Time Using INVU by Nuvo™............................................................ 15
4.1 Charging INVU Sensor Band™...............................................................................15
4.2 Installing the Application ......................................................................................15
4.3 Logging In ..............................................................................................................15
4.4 Connecting Your Device........................................................................................17
4.5 Connecting via QR Code Scan ...............................................................................18
5Using the INVU Sensor Band™ ............................................................... 21
5.1 Applying the INVU Sensor Band™.........................................................................21
5.2 Initiating a Monitoring Session .............................................................................26
5.3 Removing the INVU Sensor Band™.......................................................................28
6The INVU™ App ..................................................................................... 29
6.1 Application Overview............................................................................................29
6.2 Privacy and Security..............................................................................................29
6.3 App Screens and Features.....................................................................................30
6.4 Starting a Monitoring Session...............................................................................36
6.5 Monitoring Cards ..................................................................................................45

Table of Contents
vi Nuvo Group Ltd.
7Maintenance ......................................................................................... 48
7.1 Cleaning the INVU Sensor Band™.........................................................................48
7.2 Repackaging the INVU Sensor Band™...................................................................51
8Troubleshooting .................................................................................... 53
8.1 Forgot Password ...................................................................................................53
8.2 INVU Sensor Band™ Connectivity Troubleshooting..............................................53
8.3 Monitoring Session Troubleshooting....................................................................55
8.4 General Troubleshooting ......................................................................................60
8.5 INVU Sensor Band™ Troubleshooting...................................................................61
8.6 Service/Call Center................................................................................................62
9Specifications......................................................................................... 63
9.1 Supported Mobile Devices....................................................................................63
9.2 Communication Requirements.............................................................................63
9.3 System Specifications............................................................................................64
10 Appendices............................................................................................ 71
Appendix A. Manufacturer Declaration ........................................................................71

Invu by Nuvo™User Manual
Introduction
NV-UMLS-0001 1
1Introduction
1.1 Proper Use of INVU by Nuvo™ and this Manual
This manual provides the information necessary to operate the INVU by Nuvo™ platform. It
is highly recommended that you read this manual for understanding the INVU™ App and the
INVU Sensor Band™ before using the device.
Caution:
•Do not use INVU Sensor Band™ before you read and fully understand the contents
provided in this User Manual.
•Do not use INVU by Nuvo™ for any purpose other than those for which it is intended.
The operation of INVU Sensor Band™ for unintended purposes or with incompatible
equipment could lead to incorrect results and clinical misinterpretation.
1.2 INVU by Nuvo™ Overview
The INVU by Nuvo™ System is a safe, non-invasive wearable monitoring system, that
provides continuous passive monitoring of vital pregnancy data of the pregnant woman and
her fetus, through the INVU™ App. The information it provides is:
•Fetal heart rate (FHR)
•Maternal heart rate (MHR)
The system includes a wearable sensory band (INVU Sensor Band™) that connects wirelessly
to the INVU™ App installed on the pregnant woman’s mobile device.
The system may include additional peripheral devices, such as a blood pressure measuring
device, depending on the care plan prescribed by the pregnant woman’s medical supervisor.
The INVU™ App installed on the pregnant woman’s smartphone can log the measured blood
pressure.
The monitored pregnancy data is displayed on the mobile device by the INVU™ App. The
recorded monitored pregnancy data can also be viewed by an assigned medical supervisor
(or by a remote monitoring medical service), using the INVU Pro™web application (not
described in this manual).

Introduction
INVU by Nuvo™ Technology
2 Nuvo Group Ltd.
Item
Description
1
INVU Sensor Band™
2
Smartphone with INVU™ App for the pregnant woman and with INVU Pro™ web
application for the clinician
3
Cloud storage and signal processing
4
INVU™ end-user (pregnant woman)
5
INVU Pro™ end-user –Clinician
Figure 1-1. INVU by Nuvo™ system and applications
1.3 INVU by Nuvo™ Technology
The INVU by Nuvo™ Technology includes the processing of signals that are measured by
passive, non-invasive, acoustic and bio-potential surface sensors that are placed on the
intact skin of the maternal abdomen. The sensors are attached to the pregnant woman’s
abdomen by a uniquely designed band (INVU Sensor Band™ ), which transmits the measured
data via cloud-based algorithms to a server that processes the measured data for near real-
time pregnancy status monitoring.
INVU by Nuvo™ acquires and displays the FHR and MHR tracing from bio-potential sensors
that pick up the Fetal ECG (fECG) and the maternal ECG (mECG) signals, and from the acoustic
sensors that pick up the fetal PCG (fPCG; phonocardiogram) and the maternal PCG (mPCG;
phonocardiogram) signals.
Data presented to the pregnant woman
•Average FHR of the entire session.
•Average MHR of the entire session.
•Kicks added by the pregnant woman during the monitoring session.
The pregnant woman’s monitored data will be shared with her assigned doctor/medical
supervisor.
1
3
2
4
5
2

Invu by Nuvo™User Manual
Introduction
NV-UMLS-0001 3
1.4 Labels and Symbols
The following table shows a list of symbols that may appear throughout this manual, on
accompanying documents, on the packaging or the actual system parts. An explanation is
provided next to each symbol.
Symbol
Description
Symbol
Description
Follow instructions
for use
European Authorized
Representative (when
applicable)
Manufacturer
FCC ID: S9NSPBT30DP2
Catalog number
GMDN
Fetal Cardiac Monitor -
43958(when
applicable)
Serial number
UMDNS
Monitors, Bedside,
Fetal, Antepartum-
18339
18340
(when applicable)
Lot number
BT SIG Membership
Number
lithium battery
caution
CE 0000 (when
applicable)
40°C/104°F
5°C/41°F
Operation
Temperature Limits
Do not use a blade to
open
45°C/113°F
0°C/32°F
Storage
Temperature Limits
Indicates the total
number of products in
a package
Do not throw away
in regular waste
(WEEE)
Return at end-of-life
Electronic device of
type BF Class II, BT, UL
1642

Introduction
Labels and Symbols
4 Nuvo Group Ltd.
Symbol
Description
Symbol
Description
Do not use if the
package is damaged
Prescription-only
Keep away from
sunlight
IP22
Degree of protection
against ingress of water
provided
Keep dry
Handle with care
Humidity limitation
RoHS2
Class II
WARNING
Identify how
different types of
packaging can be
recycled
CAUTION
Use by date
Do not dry clean
Do not wring
Do not wash
Single Patient –
Multiple usages
Medical device

Invu by Nuvo™User Manual
Safety
NV-UMLS-0001 5
2Safety
2.1 Indication Of Use
INVU by Nuvo™ is a maternal-fetal monitor that non-invasively measures and displays fetal
heart rate (FHR) and maternal heart rate (MHR). The INVU Sensor Band™ acquires and
displays the FHR and MHR tracings from abdominal surface electrodes that pick up the fetal
heart biopotential and maternal heart biopotential signals, and from surface acoustic
sensors that pick up the fetal PCG (fPCG; phonocardiogram) and the maternal PCG (mPCG;
phonocardiogram) signals.
INVU by Nuvo™ is indicated for use by pregnant women who need documentation of fetal
heart rate activity, and who are in their 32nd week of gestation (or later), with a singleton
pregnancy. INVU by Nuvo™ is intended to be used for a maximum of five minutes.
The INVU by Nuvo™ maternal-fetal monitor is intended for use in the antepartum period by
healthcare professionals in health care facilities and by the patient in the patient’s home, on
the order of a physician.
The INVU by Nuvo™ is not intended for use in critical care situations or in laboring patients
or those patients hospitalized for or suspected to have preterm labor.
INVU by Nuvo™ is not intended to be used for antepartum monitoring (e.g., non-stress
testing).
2.2 Contraindications
INVU Sensor Band™ should not be used by pregnant women who meet one (or more) of the
criteria below:
•Multiple gestation pregnancy (more than one fetus).
•BMI ≥45 or ≤15 prior to pregnancy.
•Fetal anomaly.
•Uncontrolled hypertension.
•Medical skin condition (for example, Edema, Erythema or any open wound, irritation
and/or any skin infection).
•Implanted electronic devices (pacemakers, defibrillator, etc.)
•During labor or at the delivery room.
•During critical care situations or in laboring patients or those patients hospitalized for
or suspected to have preterm labor.
•During antepartum monitoring (i.e. non-stress testing).
•Pregnant women with known heart issues such as arrhythmia, etc.
•Known allergy to the:
▪Fabric of the band (80% Polyamide and 20% Elastane and TPU [Polyester-based
Thermoplastic Polyurethane]).
▪Components of the sensors (Polyamide, Elastomer, Silver, Polyurethane, and
Aluminum).
▪Plastic components: PA220 (Nylon12).

Safety
Limitation of Use
6 Nuvo Group Ltd.
•It is advised that the user will take all precautions while experiencing any changes in the
device’s performance, that are different than the performance described in this manual.
In any such event, the user must not use the device and contact Nuvo Group customer
support.
Note: A full list of INVU Sensor Band™ material components are listed in section 9.3.7.
2.3 Limitation of Use
•INVU By Nuvo™is a prescription-based device.
•This monitoring system does not prevent the onset of pre-term labor, nor will it prevent
the occurrence of pre-term contractions.
•INVU by Nuvo™ is not intended for use in the delivery room during laboring.
•Using the INVU by Nuvo™ for unintended purposes or with incompatible equipment
may result in incorrect results and clinical misinterpretations.
•INVU by Nuvo™ is not to be used during an external defibrillation process. The device
must be removed before defibrillation initiation.
•INVU by Nuvo™ is not to be used in critical care situations or in laboring patients or those
patients hospitalized for or suspected to have preterm labor.
•INVU by Nuvo™ is not to be used for antepartum monitoring (i.e., non-stress testing).
Using the INVU by Nuvo™ for unintended purposes or with incompatible equipment may
result in incorrect results and clinical misinterpretations.
2.4 Adverse Events
There are no known adverse events related to the use of INVU by Nuvo™; however, there
are possible adverse events related to monitoring systems that involve sensor application
on the skin. These include the following:
•Edema
•Erythema
•Irritation
•Sensitization

Invu by Nuvo™User Manual
Safety
NV-UMLS-0001 7
2.5 General Warnings and Cautions
•If the INVU Sensor Band™ package, INVU Sensor Band™, or any of its accessories are
damaged or are not intact —do not use the device and contact Nuvo Group customer
support.
•INVU Sensor Band™ contains no user-serviceable components. Do not try to repair this
product or any of its parts. Contact Nuvo Group customer support.
•NEVER wear the INVU Sensor Band™ while it is being charged!
•NEVER try to replace the rechargeable battery!
•Keep the INVU Sensor Band™ away from the reach of children. Do not leave the device
unattended, or at the sole presence of kids or pets that might unintentionally harm the
device.
•Maintain proper storage and usage of the INVU Sensor Band™, and always keep it dry.
Avoid exposing the device to direct sunlight, liquids, dirt or any other environmental
hazard that might damage its performance.
•INVU Sensor Band™ is a stand-alone device. It does not require another adjacent or
stacked device for normal operation.
•The use of this equipment adjacent to or stacked with other equipment should be
avoided, as it might result in improper operation. If such use is necessary, this
equipment and the other equipment should be observed to verify that they are
operating normally.
•INVU Sensor Band™ power cable must be positioned and/or restrained to avoid user
suffocation of strangulations.
•Do not use the INVU Sensor Band™ if you experienced any contact related injuries (e.g.,
skin irritation) as a result of previous use.
Cautions: Do not use the INVU Sensor Band™ after its expiration date.
•When the charging LED turns green it is an indication that the INVU Sensor Band™ is
fully charged. Avoid leaving the system plugged in for more than 4 hours or when the
LED turns green; whichever comes first. Prolonged recharging may cause excessive
heating, which could result in fire, smoke, or sparks (from the battery) that could cause
thermal injury.
Note: INVU by Nuvo™ will not function if the battery is depleted. If the INVU Sensor
Band™ battery does not charge, contact Nuvo Group customer support.

Safety
INVU by Nuvo™ Usage Restrictions
8 Nuvo Group Ltd.
2.6 INVU by Nuvo™ Usage Restrictions
INVU Sensor Band™ must be removed prior to:
▪Magnetic Resonance Imaging (MRI) scans
▪Computer Tomography (CT) scans
▪Direct x-rays
▪Defibrillator use
▪ECG and EMG connection
▪Any other potential exposure to a strong electromagnetic field.
2.7 Regulatory Classification
The INVU by Nuvo™ system, including INVU™ App, is classified as Class II (US).
2.8 Complying with Standards
The INVU Sensor Band™was approved as per IEC 60601-1-2, which contains tests of
immunity to proximity RF fields of different RF wireless communication equipment. The test
was implemented in accordance with clause 8.1 which defined the maximum power of the
wireless equipment and its minimum distance to the INVU Sensor Band™at which the INVU
Sensor Band™functionality stays steady. Thus, the minimum distance of 0.3m to some RF
communicating device can be recommended as the separation distance for The INVU Sensor
Band™.
Per IEC-60601-1-2:2007, the INVU Sensor Band™was evaluated for recommended
separation distances between portable and mobile RF communications equipment.
Note: Disposal of this device should be performed in accordance with local regulations and
WEEE (Waste of Electrical and Electronic Equipment). Alternatively, the user can send the
device for disposal back to the manufacturer or its local distributor.

Invu by Nuvo™User Manual
Know Your INVU Sensor Band™
NV-UMLS-0001 9
3Know Your INVU Sensor Band™
This section describes the INVU Sensor Band™ and its accessories.
Note: For protection during shipment and while not in use, INVU Sensor Band™ should be
stored in the provided carrying case.
Note: Do not use an expired device. Always look for the expiration date on the INVU
Sensor Band™ Packaging Label.
3.1 INVU Sensor Band™ Package Contents
The following items are included in the INVU Sensor Band™ packaging:
Figure 3-1. INVU Sensor Band™ package contents
Item
Description
1
Carrying case
2
INVU Sensor Band™
3
Medical grade power supply and charging cable
4
ECG gel (Spectra 360®)
5
Cleaning Isopropyl Alcohol Spray (Safetec)
6
User manual/quick guide
If you have any questions regarding the contents of the package, or any of the components
is damaged, or missing, please contact Nuvo Group customer support immediately at
[e-mail] or at 1-800-554-90411-800-554-9041 (USA only). Do not attempt
to repair the system by yourself.

Know Your INVU Sensor Band™
INVU Sensor Band™ Components
10 Nuvo Group Ltd.
3.2 INVU Sensor Band™ Components
The INVU Sensor Band™ includes the following main parts:
•Band fabric, with integrated sensors. The fabric is made of Polyamide and Elastane
coated with Thermoplastic Polyurethane (TPU).
•Detachable (bio-potential) sensors.
•Acoustic sensors.
•Two back straps and four frontal adjustment straps.
•Controller –An electronic module that controls the band. It includes the On/Off Power
button, a rechargeable battery, data storage, and a Bluetooth communication module.
The following pictures depict the INVU Sensor Band™ and its main components.
Figure 3-2. INVU Sensor Band™ interior view (the side facing abdomen skin)
Item
Description
1
Rear closing strap with a buckle
2
Detachable (bio-potential) sensors (×8)
3
Acoustic sensors (×4)
4
Textile band
5
Rear closing strap with a buckle
Warning: Do not use any other detachable sensors other than the ones supplied in the
INVU Sensor Band™ package!

Invu by Nuvo™User Manual
Know Your INVU Sensor Band™
NV-UMLS-0001 11
Figure 3-3. INVU Sensor Band™ exterior view (the outer side)
Item
Description
1
Rear closing strap
2
Left side plastic with the band QR-code
3
Upper frontal adjustment straps (×2)
4
Textile band (upper strip) with logo
5
Textile band (lower strip)
6
Lower frontal adjustment straps (×2)
7
Controller with On/Off power button
8
Rear closing strap
Controller
The Controller includes the On/Off power button, LED indicators, and a rechargeable
battery.
The On/Off power-button is located in the center of the controller case.
•INVU Sensor Band™ is powered ON by a short press on the power button.
•INVU Sensor Band™ ™ is powered OFF by a long press (longer than two seconds) on the
power button.
Warning: Do not press the power button for more than 6 seconds as it could switch to a
non-operational mode, which will not allow working with the INVU Sensor Band™.

Know Your INVU Sensor Band™
INVU Sensor Band™ Components
12 Nuvo Group Ltd.
Figure 3-4. Controller LEDs location
The Controller has two LED indicators:
•Functional LED indicator: a 3-color LED, integrated into the On/Off power button, that
is visible from the top and side of the controller.
•Battery charging LED indicator: a 2-color LED, adjacent to the charging port.
When power is OFF, the LED indicators are turned off. When charging, the LED indicator
near the power socket lights in orange and turns green when the battery is fully charged.
Indicator
Location
LED Color
LED
Behavior
State/Functionality
Input power
connector
(battery status)
Orange
Steady
Power OFF –Battery charging
Green
Steady
Power OFF –Battery is fully charged
When power is ON, the Controller LED color and state indicate the status of the device (see
Figure 3-4 above).
Indicator
Location
LED Color
LED
Behavior
State/Functionality
On/Off power
button
(status LED)
Green
Steady
Power ON –Standby, Ready to use
Blinking
Power up
Blue
Steady
Power ON –Bluetooth connected
Blinking
Power ON –In monitoring session
Red
Steady
Power ON –Malfunction
Blinking
Power ON –Low battery
(less than 20%)
Note: Make sure that one of the indicator lights is lit at all times during a monitoring
session.
Charging port
(Charging indicator)
Functional indicator
(for the On/Off
button)

Invu by Nuvo™User Manual
Know Your INVU Sensor Band™
NV-UMLS-0001 13
The battery is integrated into the INVU Sensor Band™ Controller and is charged by the
medical-grade power supply through the USB type C connector. The medical-grade power
supply is supplied as part of the INVU Sensor Band™ package.
•Charging time (from an empty battery to a fully charged battery) is around two hours.
•Under typical conditions, a fully charged battery will provide ~4.5 hours of continuous
monitoring.
Note: The INVU Sensor Band™ battery is pre-charged before shipping. However, it is
recommended recharging it before first use to a fully charged battery.
3.3 Charging the INVU Sensor Band™ Battery
Power OFF the INVU Sensor Band™.
Note: INVU Sensor Band™ battery can be charged ONLY if the INVU Sensor Band™ power
is OFF. Attempting to charge the INVU Sensor Band™ when it is powered ON will
automatically power it OFF.
Remove the band from your body before charging. For additional information see
“Removing the INVU Sensor Band™ ” in section 5.3.
Figure 3-5. Charging INVU Sensor Band™ battery
Caution: Do not use any other charging cable or a power supply other than the one
supplied in the INVU Sensor Band™ package!
Warning: Remove the INVU Sensor Band™ from your body before connecting the cable
for charging! Do NOT charge the battery while the INVU Sensor Band™ is worn.
Insert the USB type-C plug of the supplied power supply to the Micro USB charging
socket at the side of the plastic controller.
If you connect the charging cable while the device is turned ON, the device will
automatically turn OFF upon charging.
The minimum charging capacity to start a monitoring session is approximately 20%,
which is equivalent to about 45 minutes of monitoring.
The band battery status (charging capacity) is displayed on the INVU™App Home screen.
When charging is complete, disconnect the USB type-C plug from the Controller.

Know Your INVU Sensor Band™
Standard Operation Duration
14 Nuvo Group Ltd.
Note: Environmental conditions such as temperature, communication distance,
interference, etc. may affect power capacity and battery consumption. These variations are
typically about ±20%. (see more details in section 9).
Caution: When the LED turns green, it is an indication that the INVU Sensor Band™ is fully
charged. Avoid leaving the INVU Sensor Band™ plugged-in and charging for more than
4 hours or when the charging LED turns green; whichever comes first. Prolonged
and continuous charging could lead to battery damage. Prolonged recharging may cause
excessive heating, which could result in fire, smoke, or sparks (from the battery) that could
cause thermal injury.
Caution: Always secure the cable of the charger while charging the INVU Sensor Band™ to
avoid potential strangulations.
Note: In normal Monitoring Mode, INVU Sensor Band™ does not have or need any cable
for normal functionality.
3.4 Standard Operation Duration
The INVU Sensor Band™ has a limited usage duration for standard operation.
There is an expiration date mentioned on the INVU by Nuvo™ Packaging Label, and there is
a limited number of session hours that the INVU Sensor Band™ can perform.
The INVU Sensor Band™ can be used until its expiry date is reached or until it reaches its
maximum number of sessions; whichever comes first.
Note: When the number of sessions of a band reaches or exceeds its maximum hours of
sessions, a notification will appear on the user’s application when attempting to initiate a
session. A monitoring session will not start in this case, and the user should contact Nuvo’s
support.