Artificial Hand for Disabled Persons
An artificial hand is designed for disabled people whose biceps and triceps muscles are intact and can generate EMG(electromyogram) signals. A light weight, thermoplastic, three dimensional hand with five fingers is designed which looks similar to human hand. Each finger has 3 joints for
2025-06-28 16:30:17 - Adil Khan
Artificial Hand for Disabled Persons
Project Area of Specialization Wearables and ImplantableProject SummaryAn artificial hand is designed for disabled people whose biceps and triceps muscles are intact and can generate EMG(electromyogram) signals. A light weight, thermoplastic, three dimensional hand with five fingers is designed which looks similar to human hand. Each finger has 3 joints for complete movement of hand. To make a hand movement the EMG signal generated are captured through electrode patches from the upper part of arm. The signal can be recognized by the microcontroller board. The microcontroller signals the servo motors according to the predicted gesture. The artificial hand is able to sense the EMG signals and imitate required movements like point, pinch, grab, pick, ok and victory sign. The left, right, up and down movement of the hand are also controlled by two gear motors installed at the base of the hand.
Project ObjectivesThe main objectives of the project are
- To develop an artificial hand for disabled persons
- To make the hand perform actions like Point, Pinch, Grab, Pick , OK & Victory sign
A three dimensional design of hand is made and according to the design artificial hand is printed. The artificial hand is made of thermoplastic. It has five fingers, and each finger has three joints for particular functions and gestures. The EMG signals are captured from the arm through EMG electrodes. These electrical signals are called the muscle action potentials. These signals are given to Arduino through EMG module. The Arduino sends control signals to the motors which move the fingers for the desired movement. At the base of the hand, two gear motors are used which are placed perpendicular to each other. An accelerometer is used to control those motors. These motors control the left, right, up and down movements of the hand.
Benefits of the ProjectArtificial hand is safe to use and can be implanted to a disabled person. The. It is light weight and doesn’t leave any stain. It can be used by person without limbs or those whose hand is cutoff by accidents.
Technical Details of Final Deliverable1. Artificial Hand
- Dimension (five fingers having 3 joints each.)
- Weight (500gm)
2. Accelerometer
- Acceleration Sensor
- Sample frequency up to 11 KHz
3. Battery
- Operating voltage 12-volt
- Operating time up to 25-30 minutes
- Current 7 Amperes
4. Servo Motors
- Input voltage: 5-35V
- 100 RPM at 12V
| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Total in (Rs) | 79995 | |||
| ARDUINO | Equipment | 2 | 2500 | 5000 |
| EMG Module | Equipment | 3 | 3000 | 9000 |
| EMG PATCHES | Equipment | 4 | 300 | 1200 |
| 3D Print | Equipment | 500 | 60 | 30000 |
| BUCK AND BOOST CONVERTER | Equipment | 1 | 1500 | 1500 |
| ACCELEROMETER | Equipment | 1 | 800 | 800 |
| BATTERY | Equipment | 1 | 7000 | 7000 |
| MOTOR DRIVER | Equipment | 1 | 900 | 900 |
| FINGER SERVO MOTOR | Equipment | 4 | 2100 | 8400 |
| THUMB SERVO MOTOR | Equipment | 1 | 1500 | 1500 |
| GEAR MOTORS | Equipment | 2 | 2350 | 4700 |
| Miscellaneous | Miscellaneous | 1 | 9995 | 9995 |