Joel Harrington,Ryan Vaughan,Kevin Jow,William Pippey,Yung-Ming Chen
申请号：
US15643221
公开号：
US20170304949A1
申请日:
2017.07.06
申请国别(地区):
US
年份:
2017
代理人:
摘要：
The present invention involves laser machining polymer substrates to form a stent with laser parameters that minimize damage to the substrate in a surface region adjacent to the machined edge surface. The wavelength and pulse width are selected for this unique application and they can be controlled to minimize the surface modifications (such as voids, cracks which are induced by the laser-material interaction) which contribute to the variation in mechanical properties with distance from the edge surface, bulk mechanical properties, or a combination thereof.
