jake gelsinger david hills derick jensen ben placzek
Post on 15-Dec-2015
222 Views
Preview:
TRANSCRIPT
Jake Gelsinger
David Hills
Derick Jensen
Ben Placzek
UCCS Mechanical Engineering Senior Design TeamFinal Review
Brief Procedure Introduction
Vein Analysis Syndaver Labs Synthetic Vein Tissue Testing FEA Synthetic Vein Tissue Analysis FEA Vein Environment Modeling Analysis
Prototype Assembly/Construction Progress Proof of Concept
Overview
1) Prepare the Pacemaker Pocket1) Detach Pacemaker Leads
2) Prepare Leads
3) Insert LLD (Lead Locking Device)1) Expand LLD to lock in place
4) Deploy Laser Over Lead and LLD
5) Lase through all Fibrous Tissue
Problem Lies in Fibrous Occlusions
Vein Extraction Procedure
Testing Procedure Lowering tissue onto laser tip (12 french) Reading force tissue exerts on laser on a scale Increase force by lowering tissue until rupture
18 Tests were conducted 6 tests at three different angles were tested Tried to model the angles that may occur during surgery Each test lasted an average of 1 minute and 53 seconds
Syndaver Labs Tissue Testing
COMSOL was the software used
Limits of Software Do not know true material properties of Syndaver tissue Cannot model tearing Cannot model soft tissue
Non-linear Non-homogeneous Transient response
Sythetic Vein FEA
Software Used was SolidWorks Limits of Software
Cannot model tearing Unknown material properties (Poisson’s Ratio) Cannot accurately model vein constraints
Cannot model soft tissue Non-linear Non-homogeneous Transient response
Vein Environment FEA
top related