海菲茨动脉瘤夹失败。
Failure of a Heifetz aneurysm clip.
作者信息
Kossowsky R, Dujovny M, Kossovsky N, Keravel Y
出版信息
J Neurosurg. 1982 Aug;57(2):233-9. doi: 10.3171/jns.1982.57.2.0233.
PMID:7086516
Abstract
A 16-year-old girl died from an acute subarachnoid hemorrhage following the fracture of a blade of a Heifetz aneurysm clip. The clip was manufactured from 17-7PH steel, which on metallurgical testing was found to be highly sensitive to intergranular corrosion. The fracture mechanism was stress corrosion, brought on by the combination of a stress load, an electrolytic environment, and a susceptible steel.
摘要
一名16岁女孩因Heifetz动脉瘤夹的一个叶片断裂后发生急性蛛网膜下腔出血而死亡。该夹子由17-7PH钢制成，经金相测试发现其对晶间腐蚀高度敏感。断裂机制是应力腐蚀，由应力负荷、电解环境和敏感钢共同作用引起。
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