Developing a control system for a wearable artificial lung (BME) – UROP Spring Symposium 2022

Developing a control system for a wearable artificial lung (BME)

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Sarah Rodriguez-Medina

Pronouns: She/her/hers

Research Mentor(s): Alvaro Rojas Pena
Co-Presenter:
Research Mentor School/College/Department: Department of Surgery-Transplantation / Medicine
Presentation Date: April 20
Presentation Type: Poster
Session: Session 2 – 11am – 11:50am
Room: League Ballroom
Authors: Sarah Rodriguez-Medina, Navid Shaikh, Alvaro Rojas Peña
Presenter: 13

Abstract

Development of a gas sampling system for a CO2 based servoregulation system used in wearable artificial lungs. Authors: Sarah Rodriguez; Alvaro Rojas-Peña1, MD; Navid Shaikh2, MS Authors Affiliations: 1 Extracorporeal Life Support Laboratory, Department of Surgery, Michigan Medicine, B560 MSRB II/SPC 5686, 1150 W. Medical Center Drive, Ann Arbor, MI 2 Extracorporeal Life Support Laboratory, Department of Surgery, University of Michigan, Ann Arbor, MI Background: This research study seeks to develop artificial lung systems that respond to the changing metabolic needs of the patient, and these systems are for next generation wearable artificial lungs that will enable a range of daily activity levels for the patients suffering with end stage lung disease (ESLD). My topic of research deals with the development of a sampling system for the measurement of CO2 in exhaust gasses (also known as sidestream capnography) from artificial lungs. The objective is to find the air pump with the best performance so that it can be used as part of the gas sampling system. Methods: My first task was to conduct research and studies on different types of gas pump topologies available in the market, so I looked at the specifications of each micropump and created a document with the potential air pumps. After reviewing the data, my mentor and I decided on the optimal one and ordered the pump. I am currently working on collecting the data from performing a series of experiments that will test the pumps on following performance metrics: flow rate, pressure, noise level, and change in frequency. Results: I will analyze these findings by creating a series of plots and statements showing these results. I hypothesize that after performing a series of tests, the results will show that this pump has a higher performance efficiency and better fit for the needs of the patient than the currently used pump in the control system. After my research comes to a conclusion and I will analyze the data, I will decide whether to make changes and run more tests or commit to that product. These ideas relate to the larger context for this research because we seek to find the best performance of all devices and procedures. Conclusion: This research benefits anyone who is in need of artificial lungs, whether it be individuals, other research organizations, and companies.

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Engineering

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