Design and Development of Assisted Device for Wrist Rehabilitation

Project Title

Project Area of Specialization

Robotics

Project Summary

Robot-augmented therapy is a clinically verified path forward to improve rehabilitation outcomes for neuromuscular conditions. In some muscular and neurological disorder, patients are unable to move their wrist. They maybe affected by joint stiffness or pain etc. that resist the movement. Due to the neuromuscular disorder like ulnar neuropathy of wrist, people suffer from lack of working of wrist which restrict the degree of freedom. Therefore, an assistive device is needed which helps in recovery of disorder that enables the patients to move the wrist.

Project Objectives

Project’s aim is to develop assistive device prototype which will perform 3 DOF movement of the wrist at certain degrees. Furthermore, speed of device will be adjustable and time of rehab exercise will be in user’s control.

Project Implementation Method

The project implementation method includes;

1.Selection of electronic components

a) Motors and drive circuits

b) Controller

2.Design of mechanical assembly

3.Design of electronic assembly

4.Fabrication of electro-mechanical assembly

5.Testing

Benefits of the Project

1. This assistive device will help in recovery of disorder that enables the patients to move the wrist.

2. Treatment of ulnar neuropathy of wrist.

3. Low cost and portable.

4. Indigeneous development.

Technical Details of Final Deliverable

In this project, assisted device prototype is fabricated for the rehabilitation of 3 DOF wrist movements. Control speed along with time will make it easy for the patients to move their wrist according to their requirements and controllability. The assistive device consists of mechanical assembly and circuitry. The mechanical assembly fabricated through hard acrylic material with appropiate dimensions required for palcement of wrist and arm. The 3 DOF movements were controlled through motors and arduino microcontroller.The device design is provided by graphical user interface (GUI) for mode selection and parameter adjustment.

Final Deliverable of the Project

Hardware System

Type of Industry

Medical

Technologies

Robotics

Sustainable Development Goals

Good Health and Well-Being for People

Required Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
Stepper motors	Equipment	8	1875	15000
Servo motors	Equipment	4	1000	4000
sample model fabrication	Equipment	1	5000	5000
model fabrication	Equipment	1	18000	18000
20x4 LCD	Equipment	1	350	350
adopter	Equipment	3	767	2301
motor driving module	Equipment	5	400	2000
arduino UNO	Equipment	1	800	800
arduino mega	Equipment	1	1500	1500
silicon rod	Equipment	2	100	200
regulators	Equipment	3	200	600
bug converter	Equipment	2	225	450
wire straps	Equipment	10	40	400
jumper wires	Equipment	60	3	200
vero board	Equipment	2	100	200
push buttons	Equipment	10	20	200
on off button	Equipment	5	20	100
potentiometer	Equipment	2	125	250
wire cover	Equipment	2	125	250
LEDs	Equipment	16	3	50
resistors	Equipment	16	6	100
Thesis printing and binding	Miscellaneous	4	1500	6000
Panaflex	Miscellaneous	1	1000	1000
			Total in (Rs)	58951