| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a biomaterial member which is free from Ni as an allergy source, excellent in corrosion resistance to biological fluid, has high strengths and low elasticity, is hardly reactive with an organism, can be easily removed after completion of treatment, and hardly causes problems such as so-called stress shield, lung infarction when it is used as an intramedullary nail. <P>SOLUTION: This biomaterial comprises an amorphous alloy with polarization resistance not lower than 4×10<SP>6</SP>Ωcm<SP>2</SP>in deaerated Hanks liquid and an eroding potential-pitting potential window not lower than 0.25 V. The biomaterial comprises an amorphous material with Young's modulus not higher than 100 GPa in a preferable condition. Such a biomaterial is optimum for an artificial bone material for an intramedullary nail 1 fixed by an interlocking nail (laterally stopping screw) 2 after it is burried into a bone A, a bone setting plate, a bone fixing screw, or the like. <P>COPYRIGHT: (C)2004,JPO |
