accessible blood glucose monitor adviser: dr franz baudenbacher sponsor: dr john enderle team...
TRANSCRIPT
Accessible Blood Glucose Monitor
Adviser: Dr Franz BaudenbacherSponsor: Dr John EnderleTeam Members:Nor Haslin Mohd AliMus’ab ShaharomYazmin Zakaria
Project background
National Student Design Competition Project Choice: Accessible Blood Glucose
Monitor Funding: $ 2000 Advisor: Professor Baudenbacher
Statistics on diabetes
7% of the population have diabetes (20.8 million)
12 000 – 24 000 new cases of blindness each year.
60-70% of diabetic have mild to severe form of nervous system damage
Our Clients..
All clients have diabetes 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
Voicemate
Sensocard
Glucowatch
Voicebox Ultra
QFD Diagram
Com
E
t
U
A
c
c
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
Design Considerations
Use existing product - test strip based monitor
Build voice box for audio output
Build finger placing guide for client with tremor
Proposed Design
+ Voice Box +Blood
Glucose Monitor
Technical Steps1) Obtaining signal from glucose monitor Approach 1: Analog signal from sensor
(Failed) Approach 2: Digital signal from LCD (Failed) Approach 3: Analog signal from beeper
(Succeeded)
2) Build circuit
Accu Chek Compact circuitry
I-V converter Photodiode sensor
Approach 1Obtaining analog from sensor
Failedsensor
ReliOn LCD
Logic analyzer
Approach 2Obtaining digital signal from LCD
Failed
Accu Chek Compact Plus beeper
Approach 3Obtaining analog signal from beeper
Succeeded
beeper
Block diagram
Speech ICMicroprocessorA/D SpeakerBeeper
Glucose monitor
Current Status
With the help of Dr Karsai, we are now able to tap into the signal of the beeper.
We now are trying to rectify the signal and convert it into a digital signal that could be used for our speech chip.
Future work
Buy microprocessor and speech chip Program the microprocessor Build voice box
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 prototype
March Assess problems and failures Redesign and modification Changes to prototype
April Compile and present design
poster and final results
Questions?