Physico-chemical observations on a failed Greenfield vena cava filter

Emanuelli, G.; Gatti, A.M.; Cigada, A.; Brunella, M.F.

Journal of Cardiovascular Surgery 36(2): 121-125

1995


ISSN/ISBN: 0021-9509
PMID: 7790329
Document Number: 442516
A Greenfield vena cava filter for the prevention of thromboembolism failed in vivo due to the displacement of 2 of the 6 legs and their subsequent break. The explanted stainless steel filter was analyzed with an electron microscope and energy dispersion system in order to assess the reason for the break. Fatigue and corrosion of the metal were responsible for the failure.

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