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Related Experiment Videos

A safety net to prevent embolization during interventional procedures: work in progress

A Kerr1, B Marsan, R Lyon

  • 1Department of Radiology, The Albert Einstein College of Medicine and Montefiore Medical Center, Jacobi Medical Center, Bronx, NY 10461, USA.

Journal of Vascular and Interventional Radiology : JVIR
|December 5, 1998
PubMed
Summary

This study evaluated prototype vascular safety nets for trapping emboli during intravascular procedures. The nets effectively captured debris and were largely deployable and retrievable, showing promise for embolic protection.

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Area of Science:

  • Vascular Surgery
  • Biomedical Engineering
  • Medical Device Development

Background:

  • Intravascular procedures can generate embolic debris.
  • Effective embolic protection is crucial to minimize complications.
  • Novel devices are needed to capture embolic particles during interventions.

Purpose of the Study:

  • To evaluate the in vitro performance of three prototype vascular safety nets.
  • To assess the embolic trapping efficiency of the devices.
  • To determine the deployability and retrievability of the safety nets.

Main Methods:

  • Testing prototypes in a water flow model.
  • Performing angioplasty on human endarterectomy specimens upstream of the device.
  • Injecting polyvinyl alcohol particles into the flow model.

Related Experiment Videos

  • Examining safety nets and effluent for trapped embolic particles.
  • Evaluating device deployment and retrieval

    • Main Results:

    • The safety net successfully trapped all debris from endarterectomy specimens.
    • Most, but not all, polyvinyl alcohol particles were captured.
    • Four out of five prototypes were successfully deployed and retrieved.
    • One device experienced a deployment failure due to catching in the introducing valve.

    Conclusions:

    • The vascular safety net demonstrates effectiveness in trapping small volumes of emboli.
    • The device shows potential for successful deployment and retrieval in intravascular settings.
    • Further refinement may be needed to ensure consistent deployment and capture of all particle types.