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Man’s Quest for Immortality: Simulation of an Implantable Cardioverter Defibrillator

Man’s Quest for Immortality: Simulation of an Implantable Cardioverter Defibrillator. ME 224 Final Project Andrik Cardenas John Foglesong Monica Koepnick Jon Moncton December 12, 2001. Presentation Agenda. Objectives Background Program Logic Results/Example Conclusion Questions.

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Man’s Quest for Immortality: Simulation of an Implantable Cardioverter Defibrillator

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  1. Man’s Quest for Immortality:Simulation of an Implantable Cardioverter Defibrillator ME 224 Final Project Andrik Cardenas John Foglesong Monica Koepnick Jon Moncton December 12, 2001

  2. Presentation Agenda • Objectives • Background • Program Logic • Results/Example • Conclusion • Questions

  3. Objectives • ME Curriculum Objective: • Understand and apply in-class teachings to world around us to create solutions to everyday problems. • Final Project Objective: • Create a simplified, yet realistic, ICD simulator using LabVIEW to compare a heart rate in question with the appropriate range as determined from user-defined variables.

  4. What is an ICD? • Purpose: • Prevent ventricular fibrillation by monitoring heart rate and delivering precisely calibrated shocks to control abnormal heart rates • Physical Structure • Size • Materials

  5. What is an ICD? 63 mm 88 mm

  6. How does an ICD work? • Pacing • brief bursts of impulses to heart muscle at faster than normal pace • Low-Energy Cardioversion • mild shocks of 0.5-2.0 Joules to break abnormal rhythm • Defibrillation • intense shocks of 30 Joules to stop ventricular fibrillation

  7. Simulation of an ICD • Key Considerations: • Controllable patient characteristics • Age • Activity Level • Definition of healthy heart rates

  8. Program Logic • Key Components • User Inputs • Signal Manipulation and Comparison • Program Outputs to User

  9. Program Logic—User Inputs • Key Components • Age • Activity Level • Initial Heart Rate

  10. Program Logic—Signal Manipulation and Comparison • Read current frequency • Compute upper and lower boundaries • Compare current frequency • Determine if “shock” is necessary

  11. Program Logic—Program Output to User • Shock, if necessary • Show current heart rate • Determine LED output • Graph progress of heart rate

  12. Results • It works! • Simulation Example

  13. Lab Feasibility • Main Objective • Length • Program Complexity • Difficulty of Lab Handout

  14. The Future of ICDs • Miniaturization • Transition from conventional electronics • Artificial heart replacement

  15. Conclusion • Conceptual Overview • Utilized LabVIEW Capabilities • Replacement of Conventional Electronics

  16. Questions? Jon Johnny Monica Andrik

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