| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bioabsorbable medical instrument capable of controlling an acid effect of decomposition. <P>SOLUTION: An intravascular or cardio-intravascular medical instrument 50 placed at a site in a patient's body to control pH levels at the site in the patient's body has one or more structural components 80, 90 formed of a biodegradable and/or bioabsorbable material, or a coating 70 in a coated state formed of a biodegradable and/or bioabsorbable material as a modification. A buffer agent 95 is provided in a state of being attached to or included in the biodegradable and/or bioabsorbable material, and the buffer agent is dispersed from the biodegradable and/or bioabsorbable material in response to hydrolysis of the biodegradable and/or bioabsorbable material. In addition, it is preferable that the intravascular or cardio-intravascular medical instrument has a drug included in the biodegradable and/or bioabsorbable material. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
