Project proposal (bachelor of technology in medical engineering)pptx

Project proposal

1. TECHNICAL UNIVERSITY OF MOMBASA SCHOOL OF ENGINEERING AND TECHNOLOGY DEPARTMENT OF MEDICAL ENGINEERING BACHELOR OF SCIENCE IN MEDICAL ENGINEERING STUDENT NAME :GLORIA MUNAJI REGISTRATION NO : BSMD/196J/2019 YEAR OF STUDY:YEAR 5 SEM I

2. PROJECT TITLE A MYOELECRIC PROSTHETIC LIMB

3. INTRODUCTION A myoelectric signal is the electrical manifestation of the neuromuscular activation associated with a contracting muscle. Prosthetics are devices that substitute a missing or defective part of the body with the ability to restore some if not all, mobility and functionality to the wearer. Prosthetic limbs help give the amputee some sort of mobility that they would not have. Surface EMG signals are electrophysiological signals that consist of motor unit action potentials propagating along with the skeletal muscles.

4. PROBLEM STATEMENT Challenges in participating in the workforce Amputees face challenges in performing daily activities Upper and lower limb amputations cause severe functionality disability and significantly affect the daily lives of patients. It’s essential to restore the affected persons lost function for them to return to their daily routines. Currently research for making limbs transplants possible is still on going .

5. JUSTIFICATION Restoring independence. Prosthetic limbs enable individuals to perform daily tasks and activities they were once able to do before losing their limb. By restoring independence, they can be able control over their lives and reduce dependency on others . Better health outcome Investing in prosthetic limbs can be cost-effective in the long run. By providing individuals with the ability to lead independent lives, they may require less ongoing support and medical care . psychological well being Prosthetic limbs allow users to move and interact with their environment and people more effectively. They can engage in physical activities.Boosts self esteem and confidence by providing some sense of normalcy. Occupational Opportunity prosthetics can open up new employment opportunities and carrier possibilities for amputees.

6. MAIN OBJECTIVE To design ,construct and test a functional and versatile joint that replicates the natural movement and capabilities of a human elbow and knee. SPECIFIC OBJECTIVES To design a system that acquires the electrical activity of biceps and triceps ,using 3 electrodes ,an ecg sensor,arduino microcontroller and c++. To generate a signal from the biceps and triceps/calf and thigh and interface it to the microcontroller. To construct a testing circuit using an arduino micro-controller able to control the servo motor . To control a servo motor to make a comprehensive working prototype .

7. B lock diagram POWER SUPPLY PROSTHETIC MICROCONTROLLER BUZZER IR &TEMP SENSOR FORCE SENSOR SERVO MOTOR HAPTIC DEVICE EMG SENSOR

8. EXPLANATION SENSOR UNIT The sensor unit consists of an electro- myograph (EMG) sensor,IR sensor,Force sensor and a temperature sensor. The EMG sensor measures electrical activity in response to a nerve stimulation of the muscle and transmits that data to the processor in the prosthetic which activates the servo motor,completing the motion. The force sensor replicates natural human movement by combining walking data and optimized mechanical and electrical systems.It facilitates bi-directional communication between the body and the prosthetic. POWER SUPPLY The device requires a 5v DC supply . It is not possible to use a battery due to energy loss over time. Therefore, a 9v adapter and a regulator is used

9. EXPLANATION LCD display The LCD will be used to display the temperature. CONTROL CIRCUIT This generates output signals to drive the display and the servo motor based on the status of the input signal from the temperature detector and EMG sensor. Arduino Uno microprocessor was the basis of the materials for this design. The Uno is relatively small and quite functional . GSM In case of any abnormality detected, it sends alarm notification to both patient and doctor.

10. SPECIFICATIONS Power supply - 9v Arduino Microcontroller – Arduino uno SENSORS-Temprature sensor ;33-37 degrees for the residual limb; ;10-50 degrees for the proshthetic -force sensor ;0-100N for hands ;upto 1000N for lower limb - ECG sensor; -IR sensor;2-30cm,fast response. -pressure sensor;0-50Kpa PC for Software. Servo motor-About150 degrees rotation -12v/5A Display.

11. BUDGET COMPONENT ESTIMATED COST IN KSHS. Microcontroller 1200 Sensor unit 3000 Servo motor 1500 display 1950 Board 150 Resistors 250 Capacitors 250 Documentation 1200 TOTAL 9500

12. REFERENCES Tillander , J.; Hagberg , K.; Hagberg , L.; Mranemark , R., Osseointegrated Titanium Implants for Limb Prostheses Attachments: Infectious Complications. Clinical Orthopaedics and Related Research 2010, 468 (10), 2781-2788. AdvancerTechnologies , ThreeǦlead Differential Muscle/Electromyography Sensor for Microcontroller Applications . 2013 Doerschuk , P. C.; Gustafson, D. E.; Willsky , A. S., Upper Extremity Limb Function Discrimination Using EMG Analysis. IEEE Transactions on Biomedical Engineering 1983, BME-30 (1), 18-29

13. WORK SCHEDULE

14. EXPECTED RESULTS To develop a comprehensive working prototype of an elbow/knee replica using two metal bars,forex board and a microcontroller. Acquisition of a signal from the bicep and triceps (calf and thigh) and interface it to the microcontroller. Research booklet.