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

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

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.

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

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

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

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

QFD Diagram ComCom EtUEtU AccAcc QualityFunctionWeight(5)12345 Audio Output+++5A, CB Quick result+3CBA Preload test strip++5BCA Finger guide+4A,CB One Hand Usage+4CBA Price+5BAC Portability+5BA,C Auto calibration++5B,CA Minimum blood amount+3BAC A = Accu Chek Compact = 151 B = Accu Chek Voice Mate = 99 C = Ascensia Breeze = 121 ACCU CHEK COMPACT!! Comm = communication Etu = Easy to use Acc = Accuracy

Proposed Design + Voice Box +

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.

Accu Chek Compact circuitry I-V converterPhotodiode sensor

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.

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

Budget Senior Design Project #26 Budget Main Components Accu Chek Compact74.99 Accu Chek Software29.99 Accu Chek Compact Test drums27.48 Accu Chek Infrared cable30 ACCU-CHEK® Multiclix Lancet Device29.99 I2C Text to Speech Synthesis102 Total Misc50 Grand Total344.45

Timeline 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

Questions?