Abstract

Stents were manufactured to investigate the impact of altering stent design characteristics (leg length, bend angle, bend radius, wire diameter) on radial force generation. Results from this design parameter study showed that leg length, bend angle and wire diameter have a statistically significant impact on radial force generation, while lesser changes in bend radius did not (1.00mm vs. the original 0.794mm [1/32in]). However a larger variation of this parameter (1.588mm [1/16in]) was statistically significant. Results gathered for all parameters were used in the creation of a prototypal software. Using input values of patient specific arterial diameter and compliance, as well as stent design characteristic dimensions, this program has been developed to predict stent radial force at varying levels of expansion.

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