LEC DEVICE

1
LEC DEVICE

• Group Members
• Kevin Mihelc
• Amine Hallab
• Jen Bacior
• Hiroki Meguro
• Advisors
• Kelly Dympna, MD
• John Patzer, PhD
• 1 February 2005

2
Project Overview

• Intended Use Open Liver Biopsy
• Combines 3 Functions
• Removal of Tissue
• Cauterization
• Biopsy Tissue Protection

3
LEC DEVICE
Blades
17 cm
2 cm
4
Individual Responsibilities

• Blade Redesign
• Testing Protocol
• Design History File Update

5
Secondary Blade Design

• Remove Closed Faces
• Facilitate Easy Removal of Tissue Sample
• Simplify Fabrication Process

• Round Triangular Edges
• Wedge Point is difficult to cauterize
• Simplify Fabrication by removing joints

6
Testing Protocol

• Preliminary Testing Using CosmosWorks
• - Examine stresses subjected on device
• Discarded Livers from Animal Research Study
• Cutting Ability
• Cauterization Effectiveness
• Cauterization Time
• Heat and Current Protection

7
Testing Protocol (Cont.)

• Sterilization Test
• -Multiple Autoclave Cleansings

• User Survey
• Ease of Operation
• Comfortableness
• Comparison to Previous Biopsy Technique

8
Design History File

• Revise and Update DHF to ensure proper
• representation of the LEC tool

9
Upcoming Milestones

• Functional Computer Prototype 2 weeks
• Submit for Fabrication 2 weeks
• Full Testing Completed 4/7/05
• Revised Design History File 4/7/05

10
Acknowledgements

• Mark Gartner
• Department of BioEngineering
• LEC Group Members
• John Patzer, PhD
• Kelly Dympna, MD
• Stephan Safta and Richard Miller