| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stent having high radial force, which can be surely made to indwell in a lesion site. <P>SOLUTION: The bioabsorbable material includes an oligomer unit having a polylactic acid-derived monomer unit having a weight average molecular weight of 3,000-50,000 and an aromatic compound-derived monomer unit having at least one hydroxyl group and at least one carboxyl group in a monomer unit ratio of 700:1 to 40:1; and a chain length extended segment. The oligomer unit is bonded to the chain length-extended segment. <P>COPYRIGHT: (C)2011,JPO&INPIT |
