AGIL

1
AGIL

• Active Glucose/InsuLin Control System
• Design Team
• Daniel Hewlett
• Michael Wires
• Concept
• Provide diabetics with continuous blood glucose
  monitoring and insulin delivery in a single
  device, controlled wirelessly through a PocketPC
  interface.

2
Background Diabetes

• Glucose (Sugar) is where the body gets energy.
• Insulin controls the amount of sugar in the
  bloodstream. Insulin allows the bodys cells to
  absorb glucose, lowering glucose levels in the
  blood.
• Diabetes The body cannot control glucose levels
  correctly, often because it cannot produce
  insulin. So, diabetics are dependant on various
  methods of
• Blood glucose monitoring
• Insulin delivery
• Today, these two tasks must be done separately.

3
Our Solution

• AGIL combines the best methods (according to
  studies) of
• blood glucose monitoring Continuous glucose
  monitoring
• insulin delivery Insulin pump
• Motivation
• By consulting with users, we found that the
  tasks they want to perform divide sharply into
  two categories quick, efficient, very common
  tasks, and quite infrequent, but useful, tasks.
• Features
• Blood glucose levels constantly and immediately
  visible
• Stylus-Free operation (one finger)
• Automatic behind-the-scenes record-keeping
• Visualization of data through color charts and
  graphs
• Communication for emergencies and regular
  consultation

4
Required Components

• Insulin Pump
• A programmable device that can deliver insulin
  continuously and in discrete doses. The insulin
  pump used in the AGIL system features
• Wireless Communication to PocketPC
• Integrated Continuous Glucose Monitoring
• PocketPC
• .NET Compact Framework
• Wireless Communications
• Internet
• Phone
• Sound and Vibration
• Status Pod

5
Demo
6
Usability Study

• Number of Subjects 8
• Age Range 14 to 82 (Average 44.75)
• Reported PocketPC skills range 1-5 (out of 7)
• Included both Type 1 and Type 2 diabetics
• Users performed 5 tasks using AGIL on a PocketPC
  device, including
• Setup
• Eat a meal
• Change schedule
• Send a graph
• Respond to a notification

7
Study Results
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Conclusions and Future Work

• Lessons Learned
• Final Design
• Users made few errors and found operation simple
  and efficient
• Received well by target users, more than earlier
  designs
• Future Work
• Large Scale
• Longitudinal study w/ fully-functional system, to
  determine effectiveness and identify further
  needs
• Medium Scale
• Explore and evaluate other visualizations and
  direct manipulation techniques
• Small Scale
• Finish implementation including customization

9
Questions?