College Park LTI BOSTON DIGITAL ARM User manual

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USER MANUAL
BOSTON®
DIGITAL
ARM

USER MANUAL
BOSTON®
DIGITAL
ARM

CONTENTS:
©2017, College Park Industries, Inc. – 622 LIT UG BDA 170623

CONTENTS: Hello! 4
Fitting & Operation 6
Strength 8
On-O Switch 10
Free Swing Feature 11
Battery & Battery Charging 12
Battery 13
Battery Installation & Removal 14
Battery State of Change Indicator 15
Battery Charger 16
Charging the Battery 18
Maintenance 20
Warnings 22
Notes 23
Troubleshooting the Boston Digital Arm System 24
BDA Not Operating 25
System Diculties 26
Low Battery Warning 27

4
HELLO!

5
Congratulations on your new Boston Digital Arm system! The
following guide will provide you information, tips, warnings and
troubleshooting to help you get the most out of your new arm
every day.

6
FITTING &
OPERATION:

7
OPERATION
Your socket and harness are very important in allowing you to get
the most out of your Boston Digital Arm. The Digital Arm relies
on myoelectrodes, touch pads, switches, or a combination of
all of them. If your socket and harness do not fit well, it will be
dicult to control your Digital Arm. Factors such as weight loss,
muscle deterioration or even posture can adversely aect the
operation of the arm. If you think you’re beginning to experience
a loss of movement, contact your prosthetist to check the fit and
re-adjustment if necessary.
Your Boston Digital Arm system has been designed and built just
for you, but there are features and functions that work with every
set-up.

8OPERATION
Active Lift
Your Boston Digital Arm is designed for an active lift of 10lbs.
(4.5kg) when the forearm is one foot (30.5cm) long. This weight
includes any devices attached to the end of the arm, such as wrist
rotators and hands. If your Digital Arm forearm is longer than one
foot, this will decrease the amount of weight you can lift.
Tip: If the “low battery” alarm beeps while lifting with the elbow, turn
your Digital Arm o and replace your battery. Lifting with a low battery
can cause damage to your Digital Arm.
Passive Lift
Whenever you position your arm in one spot and hold it briefly, the
elbow will lock. Moving the arm again will disengage the lock. While
locked, your Digital Arm is designed to support up to 45 pounds
(20kg). This is called Passive Lift. This maximum weight is well
above the weight that most people find comfortable holding.
STRENGTH - HOW MUCH CAN IT LIFT?

9
OPERATION
ACTIVE LIFT
PASSIVE LIFT

10 OPERATION
The on-o switch for your Boston Digital Arm is located on the left side
of the removable battery. To turn your system on, press the button until it
clicks and stays depressed. To turn it o, simply press the button again.
Tip: Be sure to switch your Digital Arm o whenever you remove your prosthesis.
ON-OFF SWITCH
ON POSITION OFF POSITION

11
OPERATION
The Free Swing feature of your Boston Digital Arm allows you a
natural swing for activities such as walking, when you don’t need
the elbow motor to operate. The lever to operate this feature is
located on the right side of the Digital Arm. To allow Free Swing,
slide the lever away from the joint. You will see about 45 degrees of
free swing motion, making it look very anatomical. To return to the
dynamic function, simply pull the Free Swing switch towards you to
re-engage the lock.
FREE SWING FEATURE
FREE SWING SWITCH

12
BATTERY &
BATTERY
CHARGING:

13
BATTERY & BATTERY CHARGING
BATTERY
Your Boston Digital Arm comes supplied with two removable
and interchangeable Lithium-Ion batteries. For most users, one
battery is adequate to last an entire day of normal use. Battery life
will vary depending on the frequency of use, as well as the additional
components drawing from it, such as wrist rotators and hands.
Tip: Rotate use of the two included batteries to prolong the life of each
Lithium-Ion battery.

14 BATTERY & BATTERY CHARGING
HINGE PIN SLOT
HINGE PIN SLOT HINGE PIN / 4 TOTAL
LOCK RELEASE TAB
To remove the battery, simply press the release tab and gently lift
the front edge of the battery. There are hinge pins on the end towards
the elbow, so keep lifting until the battery comes o the hinge.
To install the battery, just place the end opposite the tab into the
opening. The two slots should align with the hinge pins. Once the
battery is set on the hinge, just push down on the front until the
tab clicks in to place.
Tip: We recommend charging your battery while it’s still in your Digital Arm
after you’ve removed your prosthesis for the day.
BATTERY INSTALLATION & REMOVAL

3 GREEN BLINKS
100%
charged
2 GREEN BLINKS
70%
charged
1 GREEN BLINK
30%
charged
STEADY RED
Battery Fully
discharged
BLINKING RED
Battery Fault
technical service
15
BATTERY & BATTERY CHARGING
Your Boston Digital Arm battery has an LED indicator telling you
how much charge is left in the battery. To check the charge of your
battery, just power on the Arm and the LED will blink, indicating the
amount of charge remaining.
Tip: Three green blinks means the battery is fully charged. Two
green blinks means the battery is 70% charged. One green blink is
approximately 30% charge. One red blink means it’s time to charge
the battery!
BATTERY STATUS INDICATOR
BATTERY STATE OF CHARGE INDICATOR

16 BATTERY & BATTERY CHARGING
Your Boston Digital Arm is supplied with a Fast Charger for the
Digital Arm batteries. Unlike old batteries, your Digital Arm batteries
have no “memory” and can be charged at any state and will retain its
full capacity potential. The Fast Charger is recommended for daily
use and will ensure a full charge. The Fast Charger is capable of being
used in outlets with 120 volts as well as 220 volts. The charger is
supplied with a standard North American outlet power cable. You
can purchase any generic power adapter for a country with a
dierent outlet design.
BATTERY CHARGER
POWER ADAPTER PORT

17
BATTERY & BATTERY CHARGING
CONNECT
CHARGER HERE

18 BATTERY & BATTERY CHARGING
We recommend you recharge your Boston Digital Arm battery
daily. If the battery begins to emit the “low battery” alarm sounds,
immediately power o your prosthesis and charge the battery, or
replace it with a charged one. The battery can be charged with the
included Fast Charger, or in the Digital Arm itself.
To recharge the battery while installed in the Digital arm, remove
your Digital Arm, power it o and insert the recharge plug in the
hole next to the LED charge indicator. When plugged into an outlet,
the battery indicator will illuminate red. When it is fully charged, the
LED will turn to a solid green. If the LED does not turn green, there
may be a problem with your battery and you should contact your
prosthetist. A full charge can take up to 75 minutes depending on
the battery’s state of charge.
CHARGING THE BATTERY