STP859

    In Vitro Studies of Aneurysm Clip Materials

    Published: Jan 1985


      Format Pages Price  
    PDF Version (308K) 13 $25   ADD TO CART
    Complete Source PDF (9.1M) 13 $68   ADD TO CART


    Abstract

    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.

    Keywords:

    aneurysm, corrosion, galvanic activity, implant materials, stress corrosion cracking, metallurgy, vascular surgery, X-ray diffraction, biological degradation, fatigue (materials)


    Author Information:

    Kossowsky, R
    Manager, Center for Materials Characterization, Westinghouse Research and Development Center, Pittsburgh, PA

    Kossovsky, N
    Intern, The New York Hospital-Cornell University Medical Center, New York, NY

    Dujovny, M
    Staff member, Department of Neurosurgery, Henry Ford Hospital, Detroit, MI


    Paper ID: STP33248S

    Committee/Subcommittee: G01.07

    DOI: 10.1520/STP33248S


    CrossRef ASTM International is a member of CrossRef.