Hand of Hope
Therapy Device
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You Find Hope
“
He who has health, has
hope. And he who has
hope, has everything.
Thomas Carlyle
”
She was in her twenties, feeling invincible, and
excited to take on life as a young adult.
But then she suffered a stroke and lost function
on the right side of her body. She was
devastated, feeling as if her own body had
betrayed her, refusing to obey.
She finally saw a ray of hope when she was
recruited as a clinical subject for Hand of Hope.
It changed her life. All she had to do was think
about moving her unresponsive arm and Hand
of Hope would perform the motion! The robotic
hand was driven by her will, which made her
feel something she had not felt in a long time Control. Step by step, she built strength and
relearned motor skills to regain control over her
hand. Now, she can proudly perform daily
activities on her own.
Hand of Hope is a state of the art system
combining cutting edge technology in robotics
and neuroscience to empower and help restore
movement in unresponsive upper limbs.
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HAND OF HOPE
The Hand of Hope (HOH) is a therapy device
used for upper limb rehabilitation.
Hand of Hope uses the biofeedback from muscles
via surface EMG electrodes which depict
intentionally produced voluntary muscle activation
to initiate movement.
• Helps to initiate voluntary movement
• Helps to maintain voluntary muscle
contraction
• Improves and promotes motor learning
• Enhances motivation and voluntary
participation
1 Detects the intention to move
Hand of Hope detects the user's intention, which
is emitted from the brain to the forearm in the
form of voluntary EMG signals.
2 Processes the motion signal
The device processes and delivers the EMG
signals to the hand brace.
3 Assists the movement
The hand brace assists the user by enabling the
intended hand motion.
4 Gathers positive feedback
The user re-learns hand functions through
repetition and feedback.
5 Fun interactive games
Real-time interactive games actively involve the
user and enhance the training results.
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4
5
Positive Feedback
Motor relearning
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EMG + HOH
Brain
Intention to move
The HOH responds to the
user's desire to move
the hand through a real
time interactive EMG
signal displayed on the
bar
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3
EMG Sensors
Captures voluntary EMG signal
Motor Neuron
Transmits motion signal
How
does
HOH
work
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Powered by user
initiated EMG signals
The Hand of Hope is worn on the impaired hand with
two sEMG sensors attached on the skin over the
extensor and flexor muscles of the forearm. The user’s
desire and intention to move, initiated by the brain and
sensed by sEMG sensors, can then be detected and
used to produce an assistive motion by the Hand of
Hope therapy system.
Training Modes
Different training modes allow the therapist to
customize the level of assistance that HOH provides.
The difficulty level of each mode can be adjusted
according to the user’s need.
Continuous Passive Motion
Movements are passively repeated over time. Two
CPM patterns are available for training: hand opening &
grasping.
EMG Biofeedback Training
Trigger & Go
The HOH will assist the user in completing the hand
motion once the signal is detected above a pre-set
sEMG threshold level.
For hand opening and grasping training
Trigger & Maintain
The user is required to keep generating a sEMG signal
above the pre-set threshold to maintain the assisted
hand motion.
For hand grasping training
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Indications
• Decreased muscular activity after Stroke,
Spinal Cord Injury, Hand / Finger injury
• Difficulty to self-initiate, control or maintain
voluntary muscle movement
• Impaired coordination between external
feedback and voluntary movement
Contraindications
• Rigid contracture of the fingers
• The finger cannot withstand a passive motion
from fully extended position to 48˚ at MCP and
57˚ at PIP joints
• Extensor or flexor spasticity that is greater
than 3 on the Modified Ashworth Scale (MAS)
for spastic hypertonia
• Open wound
• Any hand or forearm deformity
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Interactive Games
Game modules are designed to encourage users to
regain use of their upper limbs by completing tasks at
varying levels of difficulty.
For Hand Opening:
Desperate Bee, Hungry Bird, Sun Archer
For Hand Opening & Grasping:
Ball & Basket
For Hand Grasping:
UFO Catcher
Arm Training
At later stages of the recovery process, users can train
their arm using the Tracking Forearm Support. Levels 3
and 4 of the interactive gamesrequire the user to
extend their elbow and shoulder to complete game
missions.
Hand & Arm Training
in ONE
Many of the current rehabilitation devicesfocus
primarily on larger joints, e.g. the elbow and the
shoulder; Only some focus on hand/wrist training.
Overall, these devices rarely work on a complete upper
limb movement.
Impairment of the upper limb depends primarily on the
loss of hand function and finger dexterity, which is why
restoring both distal and proximal motor functions is
essential to the completion of daily tasks.
Hand of Hope
Hand of Hope addresses these shortcomings by
providing complete upper limb training with
coordinated hand and arm movements. It combines
executed movements with active control of the
Forearm Support.
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For more information of the relevant studies, please contact Rehab-Robotics.
Features
Readily available information
Individual user setting and training parameters
are stored and analyzed giving the therapist
access to detailed user progress information.
Comfortable training experience
The hand brace and forearm support of
Hand of Hope are designed to provide
optimal user comfort.
Easy-to-use
The interactive software is presented
with simple animated instructions and
icons. Velcro straps make setting up
and removing the device effortless.
Easy-to-carry
The system is compact, lightweight,
and carried in the provided case.
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Specifications
Hand of Hope Therapy Device
Model
Small
Medium
Large
Dimensions (W x L x H)
160x250x120mm
160x250x120mm
180x250x120mm
Weight
1.5 lbs
1.5 lbs
1.8 lbs
Internal Platform Range
88-100 mm
100-115 mm
115-130 mm
Dimension of Forearm Support (W x L x H)
U.S. Patent Application No.: 13/851,955 (Pending)
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162 x 336 x 69 mm
The Hand of Hope System and Packages
Hand of Hope (small-to-medium)
• 1 pair S-to-M Hand Brace
• Internal Platform & Strap Pad Set (S & M sizes)
• Training Software including CPM mode, EMG mode,
Patient Database and 5-game Module
• Forearm Support
• Portable Workstation
• Wireless Touch Keyboard
• Cables and Accessories
• Carrying Case
Hand of Hope (small-to-medium, large)
• 1 pair large Hand Brace
• 1 pair S-to-M Hand Brace
• Internal Platform & Strap Pad Set (S, M & L sizes)
• Training Software including CPM mode, EMG mode,
Patient Database and 5-game Module
• Forearm Support
• Portable Workstation
• Wireless Touch Keyboard
• Cables and Accessories
• Carrying Case
Hand of Hope Extension Kit
• Internal Platform & Strap Pad Set (S & M sizes)
• Training Software including CPM mode, EMG mode,
Patient Database and 5-game Module
• Forearm Support
• Portable Workstation
• Wireless Touch Keyboard
• Cables and Accessories
• Carrying Case
* No monitor is provided
For singular hand package and custom module,
please contact the local sales representative
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Member of Vincent Medical Group
Rehab-Robotics Company Ltd.
Unit 307, 3/F, 12W Building,
Phase 3, Hong Kong Science Park,
12 Science Park West Avenue, Sha Tin, Hong Kong
Tel: (852) 2416 4832 • Fax: (852) 2437 9407 • [email protected]
U.S. Patent Application No.: 13/851,955 (Pending)
www.rehab-robotics.com