| 摘要 |
PROBLEM TO BE SOLVED: To provide a medical instrument which has a dynamic strength required for supporting a lumen wall in a living body for a predetermined period (at least one month), is excellent in corrosion resistance, and is made from a base material of magnesium or magnesium alloy.SOLUTION: A bioabsorbable medical instrument is made from a base material 7 containing magnesium or magnesium alloy. In the instrument, an oxide film 8 is coated on the surface of the base material 7 by ozone oxidation treatment, and the oxide film 8 adjusts the decomposition speed of the base material 7. |
