| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform improvement in the field of orthopedic fixation devices. <P>SOLUTION: An implant 2 includes at least two degradation zones with different degradation rates: a first degradation zone 4 at a distal portion of the implant, and a second degradation zone 6 at a proximal portion of the implant. In certain embodiment, the implant further includes a third degradation zone at an intermediate portion of the implant, the intermediate portion being located between the distal portion and the proximal portion of the implant. <P>COPYRIGHT: (C)2011,JPO&INPIT |
