Open Stent Design: An Introduction
“Killer App” may not be the best term to use to describe a medical component, but if such a thing exists in the world of Nitinol, its the vascular stent. In the past fifteen years or so, these tiny metallic scaffolds have changed the practice of medicine, improved the lives of countless people around the world, and have dominated the landscape of Nitinol component manufacturing. At NDC, we’ve made more of these beautiful little objects than we can count, and we are frequently asked to help current and prospective customers improve their designs, develop new ones, perform testing and analysis, run simulations, and more. Today, we are pleased to release some resources and tools that we have developed to help new and experienced designers get started with stent design. Read on for more…The first problem that we encounter when developing useful and practical educational resources for stent design is that every design we might want to use as an example is proprietary! That leaves us without much to talk about… So to solve this problem, the first step was to create a design to use as an example. The Open Stent is designed to be completely generic, but also realistic, and relatively easy to modify and extend to be useful for whatever purpose a designer intends.
We plan to use the Open Stent as a platform to discuss a variety of topic of interest to Nitinol component designers. We hope you’ll follow along here as we post on NitinolUniversity.com. Or, if you’re eager to read ahead, jump right to the Open Stent Design page, where you can read a working draft of a comprehensive manuscript we are preparing on the subject. Some of the topics that we will cover include:
- An introduction to open source and creative commons principles
- Developing a parametric SolidWorks CAD model of the Open Stent
- Extending and modifying the parametric CAD model to meet a variety of objectives
- Predicting stent performance using a series of mathematical formulas
- Developing a predictive mathematical model in spreadsheet form
- Developing computer programs that apply these models
- Developing Finite Element Analysis (FEA) simulations for more sophisticated performance prediction
- Physical testing and characterization techniques for the Open Stent
So stay tuned, and let us know what you think, and what else you’d like to hear from us along the way!