发明名称 |
Modifying polymer properties with penetrants in the fabrication of bioresorbable scaffolds |
摘要 |
Methods of fabricating a bioresorbable polymer scaffold are disclosed including a step of inducing crystallization in a bioresorbable polymer construct through exposure to a liquid penetrant. |
申请公布号 |
US9205456(B2) |
申请公布日期 |
2015.12.08 |
申请号 |
US201213556986 |
申请日期 |
2012.07.24 |
申请人 |
Abbott Cardiovascular Systems Inc. |
发明人 |
Trollsas Mikael;Stankus John;Ngo Michael H.;Tsai Wen Chung;Glauser Thierry |
分类号 |
B05D5/00;A61L31/06;A61L31/14 |
主分类号 |
B05D5/00 |
代理机构 |
Squire Patton Boggs (US) LLP |
代理人 |
Squire Patton Boggs (US) LLP |
主权项 |
1. A method of fabricating a bioresorbable stent scaffold comprising:
providing a tube made of a bioresorbable polymer comprising amorphous poly (L-lactide); exposing the tube to a fluid for a period of time to reach a % uptake of saturation, wherein the % uptake of saturation is a maximum % uptake of the fluid of the tube, wherein the fluid is methanol, wherein the fluid is absorbed into the bioresorbable polymer and increases a flexibility of the bioresorbable polymer, wherein the fluid is absorbed without dissolving the polymer; radially expanding the exposed tube comprising the absorbed fluid from a first diameter to a second diameter; and fabricating a scaffold having a pattern of interconnected struts from the radially expanded tube. |
地址 |
Santa Clara CA US |