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Japanese

Metallurgical Study on Heifetz Clip Failure Isao HAYAKAWA 1 , Tomiho TSUCHIDA 1 1Department of Neurosurgery, Bokuto Municipal Hospital of Metropolitan Tokyo Keyword: Aneurysm clip , Scanning electron microscope , Stress-corrosion pp.135-140
Published Date 1982/2/10
DOI https://doi.org/10.11477/mf.1436201464
  • Abstract
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A metallurgical study on a fractured aneurysm clip (Hei-fetz) was described. The conclusion can be summarizedby the following: 1) Metallurgical data clearly indicate that the mode offailure is intergranular creacking-robably from a stress-corrosion mechanism.

2) Surgically used aneurysm clip is always in corrosiveenvironments from the metallurgical points of view. Aaprtfrom inadequate sterilization as well as mishandling, there-fore, corrosion of a metal clip is unavoidable.

3) A clip with multiple parts and made from differentalloys may have a greater tendency to corrode than a clipof the one-piece variety.


Copyright © 1982, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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