This is an Integrated Design Project conducted by our Group from University of Technology Sarawak. We have designed a smart portable hand restorative rehabilitation training device by combining 4 types of existing devices. On top of that, we have specifically designed a "Pegboard" for installation and detachment purpose. Aside from that, we have implemented TRIZ Principle into the product design consideration. Future improvements have been outlined in the presentation as well.

1. SMART PORTABLE HAND
RESTORATIVE REHABILITATION
TRAINING DEVICE
INTEGRATED DESIGN PROJECT
PREPARED BY: DENNIS PHIONG
LEE KUOK JING
HOUNG NAI YUAN
ERIC TIONG

2. Rehabilitation device has been widely
used to help the patients who suffers
from a minor injury to a severe disease
such as stroke, traumatic brain injury,
spinal cord injury and orthopaedic
injuries to recover the original physical
functionality of patient’s body.
PROJECT
BACKGROUND
Rehabilitation device can be defined as
“a set of interventions designed to
optimize functioning and reduce
disability in individuals with health
conditions in interaction with their
environment”

4. Preventative
ELEMENTS OF REHABILITATION
Restorative
Palliative Supportive
Rehabilitation

5. WORLD HEALTH
ORGANIZATION
Given the statistical data by WHO,
there are estimated 2.4 billion
people are currently benefiting
from rehabilitation device globally
up until the year of 2023

6. TARGET AUDIENCES
Stroke
Survivor
Carpal
Tunnel
Syndrome
Hand's
Tendon
Injuries
Sport
Injuries
Arthritis
Neurological
Disorders

7. CURRENT MARKET SOLUTIONS
Robotic
Gloves
Strain Gauge
Dynamometer
Compact
Rehabilitation
Robot
Hand
Rehabilitation
Training System
XY-101B/C

8. POTENTIAL DRAWBACKS OF
EXISTING DEVICE
DRAWBACK 1
Lack of
accessible and
efficient hand
rehabilitation
training units
DRAWBACK 2
Difficulty in
measuring and
monitoring
progress during
rehabilitation
DRAWBACK 3
Limited availability
of customized
personal hand
rehabilitation
devices

9. PROBLEM STATEMENTS
• Portability & Accessibility
• Engagement of Patient
• Ineffective Monitoring System
• Customizability
OBJECTIVES
• Ensuring Mobilization
• Gamification Features
• Telemonitoring Features with
Accurate Measurements
• Features of Personalize and Alteration

10. • Small and lightweight
• Not fixed and stay stationary on table
• Perform even outside of the clinical setting
• Able to perform
different types of
hand restorative
rehabilitation
training
• Make the rehabilitation
process more engaging and
enjoyable for patients
• Fit comfortably in
user's hand
• Controls shall be
easily accessible
• Prevent physical and
electrical hazards
• Based on unique
needs, select
the training unit
out of the 12
types from hand
rehabilitation
training system
XY-101B/C

11. 40 TRIZ PRINCIPLES
abstract inventive principles discovered by a
Russian scientist namely, Genrich Altshuller

12. Segmentation
TRIZ PRINCIPLES
• dividing a product
or system into
smaller,
independent parts
• involve breaking
down the device
into smaller,
modular
components
Merging
• to combining two or more functions or
elements into a single entity
• combining the separated training unit
to a centralized force resistance
Universality
• involves finding a
universal solution
that can serve
multiple functions
• applied on the
design of the
device's physical
components.

13. Equipotentialit
y
TRIZ PRINCIPLES
• the removal of potential
differences within a
system
• ensuring a minimum
deflection or changes in
displacement especially
at the centralized force
resistance.
Composite
Materials
• enhance the performance
of the rehabilitation
device in terms of
structural.
• use of composite
materials to create a
lightweight, yet strong,
casing for the
rehabilitation device.
Anti-weight
• lift or support the object
by its lighter parts.
• by considering the weight
and balance of the device

14. DRAFT 3
Pegboard
Training Unit
Force
Resistance &
DESIGN CONFIGURATION
IN CAD MODELLING

15. PEGBOARD
• Fit the installation and detachment of a
training unit via base plate (red colour)
• Formed with 3 layers
Evenly distributed holes
with 2cm diameter
Additional space of 0.5cm
backward for locking
mechanism
Base support for pegboard
and training unit

16. PEGBOARD
• Anti-slip rubber has been
attached to 4 corners of the
base to avoid slipping effect
• Magnet has been allocated to
attach pegboard onto force
resistance & measurement unit

17. PEGBOARD

18. TRAINING
UNIT
• Specifically designed base
plate for each training unit to
attach onto pegboard
Finger Pinching Training Unit
• Difference between size of base
plate's feet is to serve locking
mechanism purposefully

19. TRAINING
UNIT
• Rubber handle for
comfortability of user
• Connector rod to
transmit force of user
to the device

20. TRAINING
UNIT

21. FORCE RESISTANCE &
MEASUREMENT UNIT

22. FORCE RESISTANCE &
MEASUREMENT UNIT

23. FORCE RESISTANCE &
MEASUREMENT UNIT

24. PROCEDURES
STEP 1
• Attach pegboard to force
resistance & measurement
unit via magnet installed

25. • Install selected training
unit onto pegboarg
through feet of base plate
PROCEDURES
STEP 2
• Pulled backward to lock
the feet with pegboard
• Detachment is done
vice versa.

26. • Connect training unit to
force resistance &
measurement unit via the
connector
PROCEDURES
STEP 3
• Perform hand
restorative
rehabilitation training
to a certain point that
able to

27. • Force applied will result in
bending of thin aluminium
flat bar
PROCEDURES
STEP 4
• Lead to deformation of
strain gauge sensor
• Result in a change of
resistance

28. STRESS-
STRENGTH
ANALYSIS
• Average grip strength of
adult is 70N
• Drawing has been
meshed evenly
70N
Supporting Pin
Supporting Pin • Supporting pin works to
keep the thin aluminium
flat bar stationary

29. STRESS-
STRENGTH
ANALYSIS
• Majority of force acting
at the region where
connector rod is bind to
thin aluminium flat bar
• Remaining force spread
to front, back and strain
gauge sensor
Stress Analysis

30. STRESS-
STRENGTH
ANALYSIS
• Highest magnitude of
strain occur at both the
region where connector
is bind and strain gauge
sensor
• Proven that strain gauge
sensor will experiences
certain value of strain
Strain Analysis

31. CIRCUIT
DIAGRAM

32. CALCULATION
How the Device Measure the
Force Applied by the User

33. STRAIN GAUGE
Remy
Marsh

34. QUARTER WHEATSTONE BRIDGE

35. PARAMETERS

36. BALANCED WHEATSTONE BRIDGE

37. UNBALANCED WHEATSTONE BRIDGE

38. UNBALANCED WHEATSTONE BRIDGE

39. UNBALANCED WHEATSTONE BRIDGE

40. UNBALANCED WHEATSTONE BRIDGE

41. UNBALANCED WHEATSTONE BRIDGE

42. MATERIAL
SELECETION

43. HEMP FIBRE (MAIN
FRAME & PEGBOARD)
• Natural fibre derived from the
stem of the hemp plant
(Cannabis sativa)
• It is lightweight, allowing for
easy handling and portability.
• Formaldehyde-free which will
avoid the presence of volatile
organic compounds and off-
gassing

44. HEMP FIBRE
(MAIN FRAME &
PEGBOARD)
• Offers a compelling combination
of sustainability, strength, and
versatility
• Ensure a sturdy structure that
can withstand forces and
provide long-lasting
performance
• Enhances the portability and
manoeuvrability

45. AISI 304 STAINLESS STEEL
(CONNECTOR,UPPORTING RODS & PINS)
• Provides excellent corrosion resistance, ensuring long -
lasting and reliable performance even in moist or
corrosive environments
• Guarantees stability and withstands heavy loads and
mechanical stresses due to its high tensile strength and
durability
• Maintains its strength across a wide temperature range,
ensuring consistent performance in various operating
conditions
• Compatibility of AISI 304 with different manufacturing
processes allows for seamless integration into the sensor
plate design.

46. ALUMINIUM 7075 ALLOY (THIN ALUMINIUM FLAT
BAR)
• High strength ensures the flat bar can
withstand heavy loads and mechanical
stresses without deformation or failure
• Lightweight, reducing the overall weight
of the design and allowing for easy
handling and portability
• Exhibits good corrosion resistance,
protecting the sensor components from
moisture and environmental factors
• Conductivity allows for accurate strain
measurements, ensuring precise and
reliable data collection.

47. •
•
•
•
LIQUID SILICONE RUBBER
(HANDLE GRIP & ANTI-SLIP BASE)

48. NEODYMIUM (NDFEB) MAGNETS
(INSTALLER BETWEEN PEGBOARD AND FORCE
RESISTANCE & MEASUREMENT UNIT
• Possess a strong magnetic force, ensuring a secure and
reliable connection between the components
• The magnets can be easily installed and removed,
facilitating convenient assembly and disassembly
• Exhibit excellent durability and resistance to
demagnetization, ensuring long-lasting performance
• Available in various sizes and shapes, providing design
flexibility to suit specific requirements..

49. COST EVALUATION

50. RM 2100
TOTAL COST
COST EVALUATION

51. APPLICATION OF INDUSTRIAL CODE,
CODE OF ETHICS, SAFETY AND HEALTH
Engineers should accept
responsibility in making
decisions consistent with
the safety, health , and
welfare of the public
Engineers shall not
reveal facts, data or
information without the
prior consent of the
client or employer
unless authorized or
required by law.
Engineers shall strive to
comply with the
principles of sustainable
development in the
performance of their
professional duties.
PUBLIC SAFTETY
AND HEALTH USER PRIVACY ENVIRONMENT

52. FUTURE
RECOMMENDATION

54. CONCLUSION
• Succeeded in designing a smart portable
hand restorative rehabilitation training
device that fulfilled the objectives.
• With calculation, the strain gauge sensor
provides accurate measurement
• Sustainable materials with appropriate
properties have been considered
• Ethical, safety and health consideration
have been onto the design

55. THANK'S FOR
YOUR ATTENTION