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Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents
Published on: October 26, 2016
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Development of braided fiber-based stents.
Rita Rebelo1, Nívea Vila1, Raul Fangueiro1
1Fibrous Materials Research Group - Centre for Textile Science and Technology, University of Minho, 4800-058 Guimarães, Portugal.
Studies in Health Technology and Informatics
|December 10, 2014
Summary
This study developed fiber-based stents using braiding technology. These novel fibrous stents show suitable mechanical properties, potentially overcoming limitations of current metallic stents.
Area of Science:
- Biomaterials Engineering
- Medical Device Design
- Vascular Stent Technology
Background:
- The mechanical behavior of vascular stents is critical for maintaining blood vessel patency.
- Current commercial metallic stents have inherent disadvantages that necessitate alternative solutions.
- Fiber-based materials offer potential for improved stent performance and biocompatibility.
Purpose of the Study:
- To develop novel fiber-based stents utilizing advanced braiding technology.
- To investigate the influence of braiding angle and mandrel diameter on stent mechanical properties.
- To evaluate the mechanical performance (radial/longitudinal compression, bending, porosity) of the developed stents.
Main Methods:
- Fabrication of fiber-based stents using controlled braiding techniques.
- Systematic variation of braiding parameters (angle, mandrel diameter).
- Comprehensive mechanical testing including compression, bending, and porosity measurements.
Main Results:
- Fiber-based stents were successfully developed with tunable mechanical properties.
- Braiding angle and mandrel diameter significantly impacted stent mechanical behavior.
- The developed fibrous stents demonstrated mechanical properties comparable to commercial stents.
Conclusions:
- Fiber-based stents fabricated via braiding technology exhibit promising mechanical characteristics.
- These novel stents offer a viable alternative to metallic stents, potentially mitigating associated drawbacks.
- Further research into fiber-based stent design can lead to improved vascular treatments.
