SYMPOSIA PAPER Published: 01 January 1985
STP33248S

Studies of Aneurysm Clip Materials

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Seven surgical aneurysm clips, representing six stainless steels and one cobalt-based alloy, were subjected to a complete metallurgical characterization. The studies involved microstructural analysis, hardness measurements, X-ray diffraction analysis, and measurements of the galvanic passivation and resistance to pitting corrosion. Furthermore, one type of clip was subjected to a rigorous failure analysis. The results will be presented in terms of a comparative evaluation. The clinical significance of in vitro galvanic corrosion measurements will be supported by the discussion of the reasons for several failures of one type of aneurysm clip.

Author Information

Kossowsky, R
Center for Materials Characterization, Westinghouse Research and Development Center, Pittsburgh, PA
Kossovsky, N
The New York Hospital-Cornell University Medical Center, New York, NY
Dujovny, M
Department of Neurosurgery, Henry Ford Hospital, Detroit, MI
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Details
Developed by Committee: G01
Pages: 147–159
DOI: 10.1520/STP33248S
ISBN-EB: 978-0-8031-4926-7
ISBN-13: 978-0-8031-0427-3