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Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention

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Manufacturing, Processing, and Characterization of Self-Expanding Metallic Stents: A Comprehensive Review.

Saeedeh Vanaei¹, Mahdi Hashemi², Atefeh Solouk³

¹Mechanical Industrial and Manufacturing Engineering Department, University of Toledo, Toledo, OH 43606, USA.

Bioengineering (Basel, Switzerland)

|October 25, 2024

Summary

This review explores advancements in nitinol (NiTi) self-expanding stents, highlighting challenges and opportunities. It covers multidisciplinary aspects and additive manufacturing for improved patient outcomes.

Keywords:

additive manufacturing biomaterials biomimicry patency rate self-expanding metallic stents shape memory alloy

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Area of Science:

Biomaterials Science
Medical Device Engineering
Materials Science

Background:

Nitinol (NiTi) is a key alloy for self-expanding stents due to its shape memory and superelastic properties.
Current stent technology faces challenges in optimizing patient outcomes and device performance.
A comprehensive review of multidisciplinary aspects is needed to guide future stent development.

Purpose of the Study:

To review the state of the art in nitinol self-expanding stents.
To identify challenges and opportunities for improving patient outcomes with NiTi stents.
To highlight the role of additive manufacturing in advancing metal stent technology.

Main Methods:

Extensive literature review covering design, simulation, materials, manufacturing, and testing.
Analysis of multidisciplinary factors influencing stent performance and biocompatibility.
Focus on emerging trends, particularly additive manufacturing techniques.

Main Results:

Nitinol stents exhibit significant potential for enhanced performance and patient outcomes.
Additive manufacturing offers transformative possibilities for novel stent designs and functionalities.
Multidisciplinary approaches are crucial for addressing current limitations in stent technology.

Conclusions:

This review consolidates knowledge on nitinol stents, providing a roadmap for innovation.
Future research should focus on optimizing design, materials, and manufacturing processes.
Advancements in additive manufacturing hold promise for next-generation nitinol stents.