Man’s Quest for Immortality: Simulation of an Implantable Cardioverter Defibrillator
16
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
description
Man’s Quest for Immortality: Simulation of an Implantable Cardioverter Defibrillator. ME 224 Final Project Andrik CardenasJohn Foglesong Monica KoepnickJon Moncton December 12, 2001. Presentation Agenda. Objectives Background Program Logic Results/Example Conclusion Questions. - PowerPoint PPT Presentation
Transcript of 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 FoglesongMonica Koepnick Jon Moncton
December 12, 2001
Presentation Agenda
ObjectivesBackgroundProgram LogicResults/
ExampleConclusionQuestions
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.
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
What is an ICD?
88 mm
63 mm
How does an ICD work?
Pacingbrief bursts of impulses to heart muscle at
faster than normal pace
Low-Energy Cardioversionmild shocks of 0.5-2.0 Joules to break
abnormal rhythm
Defibrillationintense shocks of 30 Joules to stop
ventricular fibrillation
Simulation of an ICD
Key Considerations: Controllable patient characteristics
AgeActivity Level
Definition of healthy heart ratesActivity Level
Maximum Heartbeat (beats/min)
Minimum Heartbeat (beats/min)
High 220 – Age 100
Medium 60% of Max 80
Low 85 60
Program Logic
Key Components User Inputs Signal Manipulation and Comparison Program Outputs to User
Program Logic—User Inputs
Key Components Age Activity Level Initial Heart Rate
Program Logic—Signal Manipulation and Comparison
Read current frequencyCompute upper and lower
boundariesCompare current frequencyDetermine if “shock” is necessary
Program Logic—Program Output to User
Shock, if necessaryShow current heart rateDetermine LED outputGraph progress of heart rate
Results
It works!Simulation Example
Lab Feasibility
Main ObjectiveLengthProgram ComplexityDifficulty of Lab Handout
The Future of ICDs
MiniaturizationTransition from
conventional electronics
Artificial heart replacement
Conclusion
Conceptual OverviewUtilized LabVIEW CapabilitiesReplacement of Conventional
Electronics
Questions?
JohnnyMonica
Jon
Andrik
