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Biomedical Engineering Design Projects

Computer-assisted electroretinogram data acquisition and analysis

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Project Overview

Electroretinogram (ERG) is the measurement of voltage across the retina in response to light flash. The investigator uses a modified system to register voltage across a small piece of retina isolated from mouse.

This project’s goal is to create a system controlled through LabVIEW to monitor, control, and record values from an ERG corresponding to liquid exchange, light intensity, flash duration and frequency, and waveforms. Another goal is to add valve control to allow delivery of up to 8 different liquids into the testing environment. Only one at a time will ever be delivered.

Implications of this product extend to retina research and trial of pharmaceutical lead compounds.

Team Picture

From left to right: Andrew Dias, Nick Balge, Dan Jonovic, Whitney Johnson

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Project Status

We have chosen a final design and are preparing to begin to modify the existing LabVIEW interface

Progress Report Archive.

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Project Timeline

Week Reporting Period Beginning Activities
1 September 5 Assigned team roles, obtained contact information, met with client. Did background research about the ERG and other aspects of the project.
2 September 12 Established first version of PDS.
3 September 19 Met with client again and obtained more specific information about project expectations. Began brainstorming design options.
4 September 26 Brainstormed designs, developed LabVIEW skills, worked on GUI design
5 October 3 LabVIEW training session, discussed human aspects of GUI, flow diagram of existing design
6 October 10 Prepared midsemester PowerPoint
7 October 17 Delivered midsemester presentation, completed midsemester report and updated PDS
8 October 24 Investigated different elements of the user interface that could be developed
9 October 31 Worked on GUI colors and save data feature
10 November 7 Established GUI and continued to work on save data feature
11 November 14 Continued to work on save feature, started to integrate solution delivery
12 November 21 Thanksgiving break
13 November 28 Completed save feature and incorporated interface for valve control. Completed poster.
14 December 5 Presented poster and completed final paper
15 December 12

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Presentations and Reports

ppt icon Midsemester Presentation (Oct 16 2008, 1970 kb)
pdf icon Midsemester Report (Oct 21 2008, 849 kb)
pdf icon Product Design Specifications (Oct 23 2008, 279 kb)
pdf icon Final Poster (Dec 4 2008, 675 kb)
pdf icon Final Design Report (Dec 13 2008, 974 kb)

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Contact Information

Project Team

Project Advisor and Client

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Owner: Willis Tompkins, Ph.D.
Author: Andrew Dias
Webmaster: Andrew L. Wentland
Created: Sep 10 2008
Content updated: Dec 13 2008

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