Accessible Blood Glucose Monitor

1. Accessible Blood Glucose Monitor Adviser: Dr Franz Baudenbacher Sponsor: Dr John Enderle Team Members: Nor Haslin Mohd Ali Mus’ab Shaharom Yazmin Zakaria

2. Project background • National Student Design Competition • Project Choice: Accessible Blood Glucose Monitor • Funding: $ 2000 • Advisor: Professor Baudenbacher

3. Our Clients.. • Dave – 22, has limited use of his right arm and leg. • Wanda – 12, has low vision, encouraged to start administering insulin to herself • Lloyd – 80, has some hearing loss and is very overweight (400lbs). • Arnold - has Parkinson’s disease, and experiences slight to moderate tremors. He lives alone.

4. Project Goal • The blood glucose monitor must • communicate effectively • visual display and voice output. • calibration and expiration dates of test strips • ease of learning, storage of all components, cleaning and maintenance. • affordable and portable

5. Our Goal… • To win the First Prize for the competition, receive the $1000 cash prize.

6. Problem • Existing blood glucose monitors in the market do not satisfy the needs of all our clients. Also, some of them are quite expensive. • Available voice box in the market work with only certain monitors and are expensive. E.g voice box for Ultra

7. Design Considerations • Use existing product - test strip based monitor • Build voice box for audio output • Build finger placing guide for client with tremor • Output : • Blood glucose measurement • High/Low status - alarm • Average measurement

8. QFD Diagram Comm = communication Etu = Easy to use Acc = Accuracy A = Accu Chek Compact = 151 B = Accu Chek Voice Mate = 99 C = Ascensia Breeze = 121 ACCU CHEK COMPACT!!

9. Proposed Design + Voice Box +

10. Current Status • After opening the Accu Chek Compact we find that it is a colorimetric meter, which detects different colors to determine the level of blood glucose • The sensor is a photodiode that changes current when different level of light is shined on it and it gives a current output • Therefore we have built an I-V converter to convert the current to voltage. • However, after several trials, we failed to get any analog signal from the Accu Chek Compact.

11. Accu Chek Compact circuitry I-V converter Photodiode sensor

12. Current Status • Another option is to obtain digital signals from the LCD display of the monitor – using different monitor. • We are also trying to obtain analog output from different type of monitors that are amperometric instead of colorimetric.

13. Future work • Design circuitry for voice box • Record phrases for voice box • Build and test circuit • Build finger placing guide

14. Budget

15. December Research existing products and clients' needs Produce initial idea Compile resources and materials needed Cost assessment January Review existing materials Design prototype Development of prototype February Development of prototype (continued) Test prototype March Assess problems and failures Redesign and modification Changes to prototype April Compile and present design poster and final results Timeline

16. Questions?