14026 week 11 Demo Mike Allocco Soham Chakraborty Leslie Havens Danielle Koch Andrew Miller Kristeen Yee Stephanie Zambito Kris

Agenda Team Status The Testing System The MediResp V Database Elevator Speech Set Expectations Kris

Team Status Kris

Team Status Kris

The Testing System

The Tester Length = 5 ¾” Length = 4” Length = 7 ½” Length = 10 ¾” Andrew Length = 70” Length = 7” Length = 7 ½” Length = 1 ½”

The Tester Length = 1” Length = 3 ¾” Length = 1 ¾” Length = 4 ¼” Andrew Length = 1 15/16”

Summary of Airway Resistance Validation Testing Andrew

Pressure Reading Accuracy Testing the pressure sensors with a manometer gave a pressure to voltage relationship. Currently there is a large difference in calibration between the two sensors Mike

Leak Test/Mass Leak Test Configuration 3 Used dish soap method on the final assembly No leaks were found Set-up and testing videos can be found on the team’s Edge site Mass including mounting= 2.995kg Leslie

Problem Tracking Depending on problem

The Mediresp V

PEV VS Testing SYSTEM ACCURACY Test ID Time (sec) Maximum Flow Rate (LPM) PEV Display (LPM) PEV Volume % Error 1 10.22 11.6 12 380 3% 2 10.21 13.5 15 11% 3 10.23 17 18 6% 4 20 21 5% 5 11.3 6 7 16.8 19 13% Kris

Human analogue - PEV Breath Rate: Tidal Volume: ~ 30-60 bpm for infants ~ 12-20 bpm for adults Tidal Volume: Can be expressed as for infants: 18.1 mL/kg for healthy adults: (0.0275* Age[y] + 0.0189*Height[cm] - 2.6139) L for obese adults: (0.0277* Age [y] + 0.0138*Height[cm] - 2.3967) L for restrictive diseases (volumes normal, flow rates impeded): (from 0.4 - 0.78) * (normal tidal volume) L for obstructive diseases (volumes are decreased): (0.8 – 1.0) * (normal tidal volume) L MILLER, WAYNE C.; SWENSEN, THOMAS; WALLACE, JANET P. (February 1998). "Derivation of prediction equations for RV in overweight men and women". Medicine & Science in Sports & Exercise 30 (2): 322–327. Danielle

Human analogue - tester Airway Resistance: Poiseuille’s Law of Resistance R ~= 1/r4 where r is the radius of trachea For neonates: 19.2±5.6 cmH2O/L/s  @ 0.1 L/s For adults: 0.5-2.5 cmH2O/L/s Compliance: For neonate: 0.5 to 2.0 mL/cm H2O For adults: ~ 0.1 L/cmH20 http://www.rcecs.com/MyCE/PDFDocs/course/V7008.pdf http://www.ncbi.nlm.nih.gov/pubmed/22596072 http://www.lexingtonpulmonary.com/education/lungmech/lungmech.html Danielle

S tESTS 1-5 (of 9) Breath Rate Inspiration Time Rise Time Tidal Volume Inhale:Exhale Ratio Danielle

BREAKING DOWN WAVEFORM Breath Rate: 1 breath in 2.02 sec 29.7 bpm Rise Time 0.50 sec Insp. Time 1.00 sec Pause 1.04 sec Inhale:Exhale = Insp. Time/Pause 0.96:1 (I:E) Tidal Volume 0.72 L Rise Time Danielle Inspiratory Time Pause At nominal Q=12 Lpm, V=700 mL

Pressure Provided/Mass Pressure Provided by the PEV We are reading negative pressures before the orifice plate and positive pressure after Mass of PEV Our results = 3.805 kg Team 13027’s Result = 4.2 kg Leslie

PEV-Human Connection Performed a leak test using dish soap. No bubbles, so no leak Assumed the mask against the patient's face was secure, since it is a mask for medical purposes. Leslie

Open Items Extrinsic Peak End-Expiratory Pressure Mean Airway Pressure Intrinsic peak End-expiratory Pressure Danielle

Template for Database - Summary Kris

Template for Database - Summary Kris

Template for Database - Data Kris

Elevator Speech A portable emergency ventilator provides air to a person who is incapable of breathing on his or her own. Two previous senior design teams developed the latest versions of the MEDIRESP which is a unique ventilator that has a CPR mode. Before the MEDIRESP can go to market it must be tested. Our team’s project is to characterize the capabilities of the latest MEDIRESP design. Our system models the human respiratory system in order to collect flow, pressure, and volume data during different MEDIRESP settings. From this information we can determine if the MEDIRESP would be successful in an emergency setting. Steph

Team Vision Weeks 12-14 At the end of MSD II phase 5 the team will have a demonstration of our project’s progress. Our expectations for our demonstration are: Complete all S test plans. Be able to show the customer our test results for tests all S tests. Be prepared to describe how we tested each requirement. Be prepared to show how we tested each requirement. Prepare and run our Imagine RIT exhibit. See Imagine RIT Vision for more details. Complete project technical paper. Complete project poster. Submit application for poster contest by May 4. Kris

Go to Gemba!

Go to Gemba

Questions?