Improvement of Mechanical Performance and Biocompatibility of Spinal Implant Rod Made of Beta-Type Ti-Nb-Ta-Zr Alloy

Improvement of Mechanical Performance and Biocompatibility of Spinal Implant Rod Made of Beta-Type Ti-Nb-Ta-Zr Alloy

Mechanical properties of beta-type biomedical Ti-29Nb-13Ta-4.6Zr (mass %) (TNTZ), which exhibits non-toxicity and a low modulus similar to that of cortical bone, is improved by thermomechanical treatments, including severe cold swaging. Simultaneously, the biocompatibility of a TNTZ spinal implant r...

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Veröffentlicht in:Materials science forum 2010-01, Vol.654-656, p.2142-2145
Hauptverfasser: Oribe, Kazuya, Narita, Kengo, Niinomi, Mitsuo, Tsutsumi, Harumi, Akahori, Toshikazu, Nakai, Masaaki
Format: Artikel
Sprache:eng
Schlagworte:
Biocompatibility
Bones
Mechanical properties
Performance enhancement
Surgical implants
Swaging
Thermomechanical treatment
Titanium
Titanium base alloys
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Zusammenfassung:Mechanical properties of beta-type biomedical Ti-29Nb-13Ta-4.6Zr (mass %) (TNTZ), which exhibits non-toxicity and a low modulus similar to that of cortical bone, is improved by thermomechanical treatments, including severe cold swaging. Simultaneously, the biocompatibility of a TNTZ spinal implant rod with living tissue is evaluated using ovines, and TNTZ is proved to show good biocompatibility with bovine tissue.
ISSN:0255-5476
1662-9752
1662-9752
DOI:10.4028/www.scientific.net/MSF.654-656.2142