Accessible Blood Glucose Monitor
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Transcript of Accessible Blood Glucose Monitor
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Accessible Blood Glucose Monitor
Adviser: Dr Franz BaudenbacherSponsor: Dr John EnderleTeam Members:Nor Haslin Mohd AliMus’ab ShaharomYazmin Zakaria
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Project background
National Student Design Competition Project Choice: Accessible Blood Glucose
Monitor Funding: $ 2000 Advisor: Professor Baudenbacher
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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.
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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
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Our Goal…
To win the First Prize for the competition, receive the $1000 cash prize.
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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
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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
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QFD Diagram
Com
EtU
Acc
Quality Function Weight(5) 1 2 3 4 5
Audio Output + + + 5 A, C B
Quick result + 3 C B A
Preload test strip + + 5 B C A
Finger guide + 4 A,C B
One Hand Usage + 4 C B A
Price + 5 B A C
Portability + 5 B A,C
Auto calibration + + 5 B,C A
Minimum blood amount + 3 B A C
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
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Proposed Design
+ Voice Box +
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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.
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Accu Chek Compact circuitry
I-V converter Photodiode sensor
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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.
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Future work
Design circuitry for voice box Record phrases for voice box Build and test circuit Build finger placing guide
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Budget
Senior Design Project #26 Budget
Main Components
Accu Chek Compact 74.99
Accu Chek Software 29.99
Accu Chek Compact Test drums 27.48
Accu Chek Infrared cable 30
ACCU-CHEK® Multiclix Lancet Device 29.99
I2C Text to Speech Synthesis 102
Total 294.45
Misc 50
Grand Total 344.45
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Timeline
December Research existing products and
clients' needs Produce initial idea Compile resources and
materials needed Cost assessmentJanuary Review existing materials Design prototype Development of prototype
February Development of prototype
(continued) Test prototypeMarch Assess problems and failures Redesign and modification Changes to prototypeApril Compile and present design
poster and final results
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Questions?