发明名称 |
METHOD TO MINIMIZE CHAIN SCISSION AND MONOMER GENERATION IN PROCESSING OF POLY(L-LACTIDE) STENT |
摘要 |
Methods of fabricating an implantable medical devices such as stents made from biodegradable polymers are disclosed that reduce or minimize chain scission and monomer generation during processing steps. The method includes processing a poly(L-lactide) resin having an number average molecular weight between 150 to 200 kD in an extruder in a molten state. A poly(L-lactide) tube is formed from the processed resin and a stent is fabricated from the tube. The number average molecular weight of the poly(L-lactide) of the stent after sterilization is 70 to 100 kD. |
申请公布号 |
EP2627363(B1) |
申请公布日期 |
2016.11.16 |
申请号 |
EP20110771374 |
申请日期 |
2011.10.11 |
申请人 |
ABBOTT CARDIOVASCULAR SYSTEMS INC. |
发明人 |
WANG, YUNBING;OBERHAUSER, JAMES |
分类号 |
A61F2/82;A61F2/958;A61L31/06;A61L31/14;C08L67/04 |
主分类号 |
A61F2/82 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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