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Related Experiment Videos

Flexible balloon-expanded stent for small vessels. Work in progress.

G Duprat, K C Wright, C Charnsangavej

    Radiology
    |January 1, 1987
    PubMed
    Summary
    This summary is machine-generated.

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    A novel flexible stainless steel stent shows promise for small, moving blood vessels. While patent in dogs, it caused moderate narrowing due to cell growth, indicating a need for further research.

    Area of Science:

    • Biomedical Engineering
    • Vascular Surgery
    • Materials Science

    Background:

    • Introducing endovascular stents into small, dynamic arteries presents challenges.
    • Existing stent designs may lack the necessary flexibility for these vessels.

    Purpose of the Study:

    • To evaluate a new flexible, balloon-expanded, stainless steel stent for use in small vessels.
    • To assess the patency and biocompatibility of this novel stent design.

    Main Methods:

    • A flexible, balloon-expanded, stainless steel stent was designed.
    • Four stents were implanted in peripheral vessels of four dogs.
    • Vessel patency and luminal narrowing were assessed at 4-8 weeks follow-up.

    Main Results:

    Related Experiment Videos

    • All four stents remained patent at the 4-8 week follow-up period.
    • A fibrocellular proliferation in the intima and media caused 20%-25% luminal narrowing.
    • The stent demonstrated longitudinal flexibility.

    Conclusions:

    • The flexible stainless steel stent is a viable option for small, motion-prone arteries.
    • Further investigation is warranted to mitigate fibrocellular proliferation and optimize stent performance.