12 Lead ECG Trainer

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12 Lead ECG Trainer

• Cali Roen, Laura Bagley, Tony Schuler, Amy Weaver
• Client Dr. Patricia Padgen, Dept. of Emergency
  Medical Services
• Advisor Prof. Tom Yen, Dept. of Biomedical
  Engineering
• BME 400
• October 17, 2008

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Overview

• The 12 Lead ECG Uses and Electrode Placement
• Training Mannequin Specifications
• Existing ECG Training Mannequins
• Design Alternatives
• ECG Signal Generator
• Electrode Placement Feedback
• Future Work

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12 Lead ECG

• Diagnose heart arrhythmias
• More comprehensive view of electrical activity
• Electrode placement based on anatomical landmarks

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Training Mannequin

• Develop an adult mannequin for 12-lead ECG
  training
• Mannequin should produce a variety of ECG signals
• Students should place ECG electrodes on the chest
  using anatomical landmarks
• Provide feedback about correct/incorrect
  placement

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Existing ECG Training Devices

• Expensive
• Known electrode placement
• Not determined by anatomical landmarks
• Ineffective training for placement

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ECG Signal

• ECG signal generator
• 12-lead signal
• Various arrhythmias
• Conductive mannequin surface
• Ag-Ni woven mesh
• Latex-carbon mix
• ECG monitor
• Standard electrodes

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Electrode Placement Feedback

• Design 2
• LED marked placement
• 12- and 15-lead capability
• Anatomical landmarks

• Design 1
• Feedback circuit
• 12-lead capability
• Separate placement feedback display
• Electrode isolation
• Anatomical landmarks

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Design Matrix
Feedback Circuit LED Markers
Durability (15) 7 9
Cost (10) 8 8
Client Preference (25) 10 21
Feasibility (30) 13 24
Ease of Use (20) 15 17
Total 53 79
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Future Work

• Determine an appropriately conductive biomaterial
  to use for the skin
• Construct circuit on the chest plate
• Modify 12 Lead ECG simulator

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References

• www.laerdal.com
• www.muskoka.ambulance.ca/g/photos/lifepak12.jpg
• Harris, James. Electrically Conductive
  Latex-Based Composites.