Improvement of mechanical performance and biocompatibility of spinal implant rod made of beta-type Ti-Nb-Ta-Zr alloy

Mitsuo Niinomi, Kengo Narita, Masaaki Nakai, Toshikazu Akahori, Harumi Tsutsumi, Kazuya Oribe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationPRICM7
PublisherTrans Tech Publications Ltd
Pages2142-2145
Number of pages4
ISBN (Print)0878492550, 9780878492558
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7 - Cairns, QLD, Australia
Duration: 2010 Aug 22010 Aug 6

Publication series

NameMaterials Science Forum
Volume654-656
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
CountryAustralia
CityCairns, QLD
Period10/8/210/8/6

Keywords

  • Biocompatibility
  • Fatigue strength
  • Microstructure
  • Spinal implant rod
  • Tensile properties
  • Ti-29Nb-13Ta-4.6Zr
  • Young's modulus

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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