P08026: Modular Hemodynamic Flow

Simulator

Jason Brown Mechanical EngineeringAmanda Clark Mechanical Engineering Matthew Hicks Electrical EngineeringJonathon Kelso Electrical EngineeringCharles Marion Industrial and Systems EngineeringDaniel Wisniewski Electrical Engineering

P08026 : Project Background

Design a robust, replicable test-bed

Simulate flow associated with Circulatory System

Previous work done by Dr. Karl Schwarz of University of Rochester Medical Center

P08026 : Concept Summary

Movable Membrane Drive

Bladder System

Compliance Chamber

Vascular Resistance Network

Sensor Network

LabView Interface

P08026 : System Flow Loop

P08026 : Design Summary

Standard 1” Vinyl Tubing

Standard 1” NPT Threaded Fittings

Teflon Tape Used at Every Threaded Opening

Hose Clamps Used at Every Junction

P08026 : Design Summary Cont.

Linear Actuator Designed and

Programmed for Dr. Schwarz

Runs Based Off User Generated Program and Cart Controls

Actuator Interface Back-End Interface Front-End User

Defined Interface One Command Allows

for User Control via Buttons

P08026 : Design Summary Cont.

Sensors Pressure

Omega PX-209 Flow

FPR-301

Dry/Wet Box

P08026 LabView Interface

DAQ USB Compatible MCC USB-1208 Sampling Rate –

40kS/s Analog Inputs

P08026 : Design Summary Cont.

Drive Cylinder Heart Chamber Arm Pushes Against

Membrane Fluid Forced Out

through Fitting

One Way Valves Control Flow

Bag Compresses Ejecting Flow

P08026 : Design Summary Cont.

Compliance Chamber 2 Designs

Vascular Restriction 1”, ¾”, ½” Tubing

Used Valves Used to Direct

Flow

P08026 : Objective & Project Evaluation

Pump Water Through System with Pressures Replicating 120 over 80 mmHg

Capture Initial Flow/Pressure Data

Able to Pressurize Compliance Chamber 200 mmHg

Separate Dry/Wet Components on Two Movable Carts

Provide a System with Negligible Leaks

Easy Draining Procedure

Documentation Customized

Program for Actuator Control

P08026 : Difficulties & Future Improvements

Difficulties Draining Was an Initial Issue Sealing Compliance Chamber Air Bubbles Within System

Future Improvements Easily Customizable Control System

for Actuator Control Refinement of Drive System

P08026 : Acknowledgements

Thanks to Dr. Karl Schwarz of Strong Memorial Hospital for Donation of Drive System and Other Materials

Thanks to Dr. Phillips for his Guidance

Thanks to Richard Wisniewski for Donation of Sphygmometer