基本信息:
- 专利标题： HELICAL STENT HAVING IMPROVED FLEXIBILITY AND EXPANDABILITY
- 专利标题（中）：具有改进的灵活性和可扩展性的螺旋固定装置
- 申请号：US12465354 申请日：2009-05-13
- 公开(公告)号：US20090264986A1 公开(公告)日：2009-10-22
- 发明人： Thomas O. BALES , Peter K. Kratsch , Kenneth E. Perry
- 申请人： Thomas O. BALES , Peter K. Kratsch , Kenneth E. Perry
- 申请人地址： US NJ Murray Hill
- 专利权人： C.R. BARD, INC.
- 当前专利权人： C.R. BARD, INC.
- 当前专利权人地址： US NJ Murray Hill
- 主分类号： A61F2/06
- IPC分类号： A61F2/06
摘要：
A stent includes a central portion of helically wound undulations formed of struts, cylindrical end portions, and transition zones between the helical portion and the cylindrical 5 portions. According to a first aspect of the invention, the torsional flexibility of the stent is maximized by having bridges connecting adjacent winding be interrupted by the maximum possible number of undulations. In a preferred design, each winding includes nineteen undulations around the circumference, bridges are provided every five undulations. According to a second aspect of the invention, uniform, opening of the transition zone is achieved by altering 10 the width, and thereby the flexibility, of a series of struts in accordance with their lengths. Specifically, the long transition zone struts are made wider.
摘要（中）：
支架包括由支柱，圆柱形端部和螺旋部分和圆柱形5部分之间的过渡区形成的螺旋缠绕起伏的中心部分。 根据本发明的第一方面，通过使连接相邻绕组的桥被最大可能数量的起伏中断，使支架的扭转柔性最大化。 在优选的设计中，每个绕组围绕圆周包括19个起伏，每五个起伏提供桥。 根据本发明的第二方面，通过根据其长度改变一系列支柱的宽度，从而改变柔性，实现过渡区域的均匀打开。 具体来说，长过渡区支柱被做得更宽。
公开/授权文献:
- US08038707B2 Helical stent having improved flexibility and expandability 公开/授权日：2011-10-18