Broken Wings: First Reported Cases of Fractured Angel® Catheters, a Temporary Combined Femoral Venous Catheter and Retrievable IVC Filter Device

  • Mohammed Rashid Akhtar
  • Jimmy Kyaw Tun
  • Riad Alchanan
  • Ounali Jaffer
  • Snehal Patel
  • Joo-Young Chun
  • Nicholas Bunker
  • Tim Fotheringham
Case Report


There has been increasing use of a novel combined femoral venous sheath, catheter and retrievable self-expanding and collapsible diamond-shaped IVC filter (Angel® Catheter, BiO2 Medical), in severely injured patients who cannot receive anticoagulation. As the filter is not detached from the catheter/sheath, it should be easily retrieved. Outcomes included in large registries demonstrate a high safety profile and a 100% retrieval rate. However, at our institution—a Level 1 major UK trauma centre with 4 years of substantial experience in using this device—we’ve encountered three cases of device fracture and subsequent complicated retrieval dating from Dec 2016 to March 2017. To the best of the authors’ knowledge, we describe the first documented case series of fractured Angel® Catheters and their retrieval.


Angel catheter IVC filter Thromboprophylaxis Pulmonary embolus Pulmonary embolism 


Compliance with Ethical Standards

Conflict of interest

Dr. Nicholas Bunker received an honorarium from BiO2 Medical in 2014 for his time spent acquiring and entering patient data into the European Angel Catheter Registry. On behalf of the remaining authors, the corresponding author states that there is no conflict of interest.

Ethical approval statement

Ethical approval is not required as this is a case report.

Informed consent statement

This does not apply.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE) 2018

Authors and Affiliations

  • Mohammed Rashid Akhtar
    • 1
  • Jimmy Kyaw Tun
    • 1
  • Riad Alchanan
    • 1
  • Ounali Jaffer
    • 1
  • Snehal Patel
    • 1
  • Joo-Young Chun
    • 2
  • Nicholas Bunker
    • 3
  • Tim Fotheringham
    • 1
  1. 1.Interventional Radiology, Imaging DepartmentThe Royal London HospitalLondonUK
  2. 2.Interventional Radiology DepartmentSt George’s University Hospitals NHS Foundation TrustLondonUK
  3. 3.Department of AnaesthesiaThe Royal London HospitalLondonUK

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