Metallurgical evaluation of the compatibility of surgical clips with their appliers |
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| Authors: | R Kossowsky M Dujovny N Kossovsky |
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| Institution: | (1) Present address: Department of Neurological Surgery, Henry Ford Hospital, Detroit, Michigan, USA;(2) Department of Metallurgy, Research and Development Center, Westinghouse Electric Corporation, Pittsburgh, Pennsylvania, USA;(3) Division of Biological Sciences and Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA |
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| Abstract: | Summary Five aneurysm clips and their respective appliers (Heifetz, Vari-Angle, McFadden, Scoville, and Ya argil) were tested for the production of small metal shards that could provoke a foreign body reaction or increase the risk of a stresscorrosion failure. Pivot and Vari-Angle-McFadden clips produced numerous large shards, the Scoville clip produced a few fine shards, and the Yaargil and Heifetz clips produced none. Metal shard production due to cold metal transfer is attributed to the abrasive mechanical interaction between clips and appliers made from metals with different degrees of hardness. |
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| Keywords: | Aneurysm clips medical instrumentation metallurgy vascular surgery |
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