Human Patient Simulator for CPR

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Human Patient Simulator for CPR

• Ben Moga, Tom PearceHani Bou-Reslan, Joel
  Rotroff
• BME 301
• March 7th 2003

2
Client

• Robert Tham, PhD
• Datex-Ohmeda

Advisor
Professor Mitch Tyler Department of Biomedical
Engineering University of Wisconsin - Madison
3
Overview

• Problem statement
• Background information
• Product design specifications (PDS)
• Design Alternatives
• Proposed Design
• Future Aspects
• Questions

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Problem statement

• To create a simulator that will
• Accept and measure the force applied
• Convert force applied to fluid flow
• Measure fluid flow in systemic and coronary
  systems
• Measure gas flow to lungs
• Have adjustable resistance fluid vessels
• Be compatible with a computer

5
Background Information

• If an unconscious person is without a pulse,
  compression of the thorax must be preformed to
  induce blood flow

6
Current Technology

• Manikins currently exist which demonstrate
  responses due to certain forces and are used as
  training devices
• (2900 model)

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Key Design Aspects

• Measure flows and pressure forces
• Determine cardiac output
• Determine gas flow into lungs
• Measure gas pressure in the lungs
• Compatible with computer for display purposes

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Design Components

• Thoracic Resistance for rib cage
• - Simulate viscoelastic properties of human torso
• Heart Lung
• - Passive expansion and compression
• Vascular system
• - Simulate systemic and coronary flow

9
Interface Options

• Simulator sensor output fed into a computer
  running Labview
• Imbedding a Rabbit semiconductor along with
  sensors into simulator
• Sending data via a wireless connection to a
  nearby laptop

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Proposed Solution

• A hollowed-out Manikin containing
• A spring-damper system
• One lung
• One heart with 2 protruding adjustable resistance
  blood vessels
• Embedded flow sensors
• Computer interface

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Proposed Solution
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Design Matrix
poor average excellent
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Future Problems

• Researching the actual response in human subjects
  due to a given applied force
• Determining and obtaining appropriate flow and
  pressure sensors
• Converting and interfacing the sensors output in
  Labview
• Build and test prototype

14
Questions