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Biomedical Engineering Design Projects

Right-angle Screwdriver

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Project Overview

The aim of this project is to design a right angle screwdriver for use in surgery for facial fractures. The current procedure attaches titanium plates to the mandible by making a small incision on the exterior of the face, which makes it difficult to position the screwdriver effectively and leaves a scar. The right angle screwdriver must be able to fit through a standard incision inside the mouth and provide enough torque to tighten the screws down on to the plate.

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From left to right: Charles Donaldson, Scott Capenter, John McGuire, Nathan Retzlaff

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Project Status

The group has determined final specs of the project. The team has ordered all parts for the prototype and is in the process of fabricating. Once the prototype has been built, significant testing will be conducted.

Progress Report Archive.

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Project Timeline

Week Reporting Period Beginning Activities
1 September 4 Established roles, contacted client, and met with client.
2 September 11 Researched existing related devices. Came up with 5 ideas for design.
3 September 18 Further research on materials and torque testing; wrote PDS.
4 September 25 Website established; further research on casing materials and pricing.
5 October 2 Met with client, which simplified our problem wrote design matrix; produced rough model and SolidWorks drawings.
6 October 9 Wrote mid-semester presentation, and mid-semester report rough draft.; practiced presentation.
7 October 16 Mid-semester presentation given; mid-semester report edited and submitted.
8 October 23 Reviewed final-specs and identified requirements that must be met before fabrication.
9 October 30 Team created alternate design since aquiring a surgical bit wasn’t feasible.
10 November 6 Ordered majority of the parts for final prototype
11 November 13 Found required torque (26 in∗oz); Ordered all remaining parts for final prototype
12 November 20
13 November 27
14 December 4
15 December 11

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Presentations and Reports

pdf icon PDS (Oct 10 2009, 73 kb)
ppt icon Mid-Semester Presentation (Oct 15 2009, 2376 kb)
pdf icon Mid-Semester Presentation (Oct 15 2009, 815 kb)
pdf icon Mid-Semester Report (Oct 21 2009, 436 kb)

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Contact Information

Project Team

Project Advisor and Client

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Owner: Willis Tompkins, Ph.D.
Author: Nathan Retzlaff
Webmaster: Andrew L. Wentland
Created: Sep 27 2009
Content updated: Nov 21 2009

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