Livassured NightWatch Livanova Parts list manual

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Technical description Nightwatch for Livanova

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Contents
Contents of the Livassured NightWatch kit 5
What does the NightWatch detect? 6
Explaining the parts 7
Signals of the arm module and the alarm unit 8
a. Arm module and alarm unit are similar 8
b. Specifics arm module 9
c. Specifics alarm unit 9
Putting the NightWatch into use 11
a. Customizing the bracelet 11
b. First activation and charging arm module 13
c. Putting the alarm unit into use 14
d. Daily use 14
e. Connecting arm module and alarm unit 15

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Contents of the Livassured NightWatch kit
In the Livassured NightWatch kit the following parts are included:
1 Alarm unit
2 Power supply for alarm unit (black)
3 Arm module
4 Charger for arm module (white)
5 Strap
6 Strap clips
5 6
3 4
1 2

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What does the NightWatch detect?
The NightWatch aims at detecting nocturnal clinically urgent
epilepsy seizures. During the night’s rest of the person suffering from
epilepsy (hereafter: the wearer), the surroundings can be alarmed
when an ‘urgent seizure’ takes places. This includes tonic-clonic,
prolonged tonic and hyper motoric seizures.
The NightWatch continuously monitors the movements and the
heartbeat of the wearer. The device is meant to function during sleep
and only gives an alarm when the wearer is lying down.
In case of most adults, the NightWatch gives an alarm in regard to
many clinically urgent seizures. Furthermore, when the alarm occurs,
the tests show that up until now in more than half of the events
indeed there is an urgent attack. However, it may occur that the
NightWatch functions less well. In most of those instances, too many
false alarms take place. Causes are too much mobility, sleep that
is too light, and a raise of the heart rate because of for instance a
nightmare.
The NightWatch is developed to detect as many clinically urgent
seizures as possible and with the ‘right’ wearers performs consider-
ably better than the systems available to date. The highly sensitive
set-up also implies that sometimes false alarms may be expected.

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Bracelet: arm module and strap
The arm module is the device that is placed on the upper arm
(between biceps and shoulder). With the help of the two green
LEDs on the dark grey side of the arm module, the heart rate is reg-
istered. Next to that, the arm module registers movement.
This way the arm module is able to detect an epileptic seizure and
subsequently sends a signal to the alarm unit.
On the dark grey side of the arm module a slide knob is situated
which with a pen can be placed from one to the other position.
This has to be done one time only while putting the NightWatch to
use, activating the arm module. This activation is confirmed by the
two heart rate LEDs lighting up. After this, one may connect the arm
module to the charger.
The white side of the arm module contains one red and one green
LED, which give an array of signals.
Alarm unit
The white square box is the alarm unit that delivers both light and
sound signals. The alarm unit can be placed anywhere in the house
near a socket. Please make sure that the alarm signal can be heard
well.
Explaining the parts
1Measure the contour of your forearm
without stretching the strap.
Bend your arm when you measure.
2
3
4
Attach the 2 clips on the strap.
Attach the 2 clips in the slots of the device.
Check if the length of the strap
feels comfortable by stretching
and bending your arm.
If the strap feels too tight or too loose:
1) Tear out the strap upwards.
2) Push the clips out of the device from behind.
3) Adjust the clips on the strap to make it shorter or wider.
4) Click the clips into the slots again.
slide knob2 green LEDs

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Signals of the arm module and the alarm unit
The arm module and the alarm unit give light signals,
which the alarm unit supports with sound.
Hereunder these signals are explained.
a. Arm module and alarm unit are similar
One green LED burns continuously
• Everything is ok: good connection between arm module and alarm
unit, heartbeat is detected, battery power ok.
RING
Red LED blinks fast (and alarm unit rings)
• Alarm, clinically urgent seizure detected.
(You may turn off the alarm by pushing one of the knobs on the
alarm unit.)
BEEP
Red LED blinks slowly (and alarm unit beeps)
• Arm module has been taken off the charger, heartbeat not
detected yet.
This signal stops as soon as the NightWatch detects the heart-
beat after the bracelet is put on the wearer. In order to have the
arm module pick up the heartbeat sooner, keep the arm still.
• More than 30 seconds no detection of heartbeat and movement.
This happens for instance when the bracelet is not on the arm of
the wearer anymore or when the arm module has not been
connected to the charger. Go to the wearer and put the bracelet
back on or connect the arm module to the charger. The signal
stops by itself when a heartbeat is detected again or when the
arm module is being charged.
• More than 2 minutes detection of movement, but not of heartbeat.
Go to the wearer and place the bracelet on the right spot or make
the bracelet a bit tighter. When the wearer subsequently keeps
the arm still, the arm module will ‘find’ the heartbeat within 15
seconds. After this the signal stops and the LED turns to
continuous green.
2 BEEPS 2 BEEPS 2 BEEPS
Red LED blinks repeatedly twice fast
(and alarm unit beeps twice)
• No connection between alarm unit and arm module.
greenorange
speaker
= continuously
= blinking
red

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The alarm module and the alarm unit are too far apart.
Position the alarm unit closer. If this does not solve the problem,
the NightWatch is defective.
4 BEEPS 4 BEEPS 4 BEEPS
Red LED blinks repeatedly four times fast
(and alarm unit beeps four times)
• Battery of arm module is empty.
The NightWatch cannot be used anymore this night. Connect the
arm module to the charger. If the next morning the arm module
still is not charged, it is defective.
b. Specifics arm module
Green LED burns continuously
• (Off the charger:) Everything is ok, heartbeat is registered, con-
nection is ok, battery power is ok. or
• (On the charger:) Fully charged, battery power is ok.
Green LED blinks
• (Off the charger:) Arm module in vertical position and / or (normal)
movement. or
• (On the charger:) Arm module is charging.
c. Specifics alarm unit
Orange LED burns continuously
• The alarm unit is connected to electricity grid.
One green LED burns continuously and
a second green LED blinks
• The arm module is connected to the charger and still is charging.
Two green LEDs burn continuously
• The arm module is connected to the charger and is charged fully.
One green LED blinks
• The arm module is in a vertical position and/or detects (normal)
movement.
The wearer sits upright and/or is out of bed, or is moving the
arm. The consequence of this is that the NightWatch is not able
to detect a seizure. Once the wearer lies down and/or keeps the
arm still again, the signal will stop by itself.

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Alarm unit: operate the alarm sound
Buttons ‘a’ and ‘b’
These buttons allow the following:
• Press one of these buttons (it does not matter which one) for
about two seconds while the seizure alarm goes off if you want to
shut off the sound.
NOTE: the technical alarm may be made softer, but cannot
be shut off totally.
• Use the buttons to adjust the volume of both the seizure alarm
and the technical alarm. Press on button ‘a’ or ‘b’. You will hear the
sound of the alarm once. Press another time on ‘a’ (‘louder’) or ‘b’
(‘softer’) to adjust the sound. Repeat this to your liking.
NOTE: do not turn the sound down so much that you risk
not hearing it in case of a seizure alarm.
speaker
a
b
LEDs