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Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
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JoVE 杂志 生物工程
Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section

DOI:
10.3791/51288-v

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11:00 min

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July 19, 2016

•

,
1Department of Mechanical and Aerospace Engineering,The George Washington University

Chapters

  • 00:05Title
  • 01:00Blood-analog Solution
  • 01:56Fabrication and Installation of Stent Models
  • 03:27Setup and Data Acquisition
  • 06:24Post-processing
  • 08:15Results: Flow Velocity Data Analysis
  • 09:59Conclusion

Summary

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Stent implants in stenosed arterial curvatures are prone to "Type IV" failures involving the complete transverse fracture of stents and linear displacement of the fractured parts. We present a protocol for detection of secondary flow (vortical) structures in a curved artery model, downstream of clinically relevant "Type IV" stent failures.

Tags

Keywords: Particle Image VelocimetryCoherent Structure DetectionSecondary FlowVortical StructuresCurved ArteryType IV Stent FailureCardiovascular HemodynamicsStent FractureBlood Flow PatternsVascular RemodelingBlood-analog SolutionSodium IodideGlycerolDeionized WaterSodium ThiosulfateSTL FilesRapid Prototyping3D PrintingCurved Artery Test SectionType IV Fracture

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