发明授权
- 专利标题: Pulsed fiber laser cutting system for medical implants
- 专利标题(中): 用于医疗植入物的脉冲光纤激光切割系统
-
申请号: US09882590申请日: 2001-06-14
-
公开(公告)号: US06521865B1公开(公告)日: 2003-02-18
- 发明人: Stephen Jones , Klaus Kleine , Brad Whitney
- 申请人: Stephen Jones , Klaus Kleine , Brad Whitney
- 主分类号: B23K2638
- IPC分类号: B23K2638
摘要:
An improved expandable stent for implantation in a body lumen, such as an artery, and an improved method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cut cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements, the elements having a rectangular cross-section from cut-to-cut. The individual radially expandable cylindrical elements are disposed in an undulating pattern. The stent is manufactured by direct laser cutting from a single metal tube using a finely focused laser beam originating from a diode pumped fiber laser with an external pulse generator and passing through a coaxial gas jet structure to impinge on the working surface of the tube as the linear and rotary velocity of the tube is precisely controlled.
信息查询