Exploring the Mechanical Strength of Stent Samples with Different Patterns and Strut Widths

Overview

Objectives/Goals The purpose of this study is to evaluate the mechanical strength of each stent, the strength needed to compress it, based upon varied patterns and struts width. Methods/Materials I tested the mechanical strength of stent samples with different patterns and struts widths. I used stainless steel tubes and a laser cutter to create my stent samples and a force gauge to measure the mechanical strength of each stent sample. Results Several stent samples were tested to find out whether the mechanical strength of the stent will change when the struts width and pattern is changed. The greater the struts width and the larger the number of rings, the more the mass that the stent has. The 10 rings performed much better than the 6 ring stents and the 10 ring 500 micrometer struts width stent performed the best of them all proving that mass affects the mechanical strength of stent samples. Conclusions/Discussion The repeated trials of testing the mechanical strength of the stent samples proved that the 10 ring 500 micrometer struts width stent samples performed the best of them all. Every time the size of struts width was at its thickest and the number of rings was at its most, the mechanical strength of the stent sample was the highest and this directly related to the mass of a stent. Therefore, I concluded from my experiment that the mass of a stent does affect the mechanical strength of a stent sample.

Competition history

• CSEF 2017 Applied Mechanics & Structures · Entry J0307

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