COMP 586 Project

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Automated / Programmable Insulin Pumps

• COMP 586 Project
• Fall 2005
• Don Brown

2
Primary Functional Requirements

• Size and Weight minimum
• Profile Basal number of days, number of
• Integrated Sensors HbA1c more often
• Control Options Frequency of Basal in
  contrast to Bolus injections
• Companion Software Tracking blood sugar level to
  find optimum lifestyle profile
• Waterproof and Shock protection Rough use
• Remote Control Settings via Radio Link
• Batteries Number and Type and Expected Life

3
Context Diagram
Patient
Doctor / Care-Giver
Blood Glucose Meter
Insulin
Pump
Software System
Infusion Set
Display / Control
4
Safety Requirements

• Insulin Delivery No accidental delivery leading
  to hypoglycemia/coma/death
• No susceptibility to RF fields
• Impervious to Pressure Changes
• Works at Temperature Extremes
• Survives Physical Impact

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Reliability Requirements

• Continuous Operation over extremes of climate,
  environment, battery voltage falloff, impacts,
  immersion in water, physical activity, during
  sleep.
• Warning system for plugged line or catheter, or
  syringe out of insulin

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Primary Software Components

• Stepping Motor Controller
• Operator and Display Interface
• Infusion Basal Dosage and Rate Timer Controller
• Infusion Bolus Dosage Calculator
• Central Control Unit
• Insulin Pump Controller
• Basal Rate Memory and Upload Controller
• RF Link Controller
• Low Battery Monitor and Alarm
• Insulin Refill Monitor and Alarm