Polymeric stents and method of manufacturing same

    公开(公告)号:US08370120B2

    公开(公告)日:2013-02-05

    申请号:US12772155

    申请日:2010-04-30

    申请人: Brenna Hearn Lord

    发明人: Brenna Hearn Lord

    IPC分类号: G06G7/48

    摘要: A pattern is used to form a stent scaffold from a polymeric precursor tube having a particular outer diameter. A new pattern can be derived from a base pattern, wherein the new pattern can be used to form a stent scaffold from a precursor tube having an outer diameter ODPR smaller than that needed for the base pattern. The new pattern can be derived by determining the shape of a stent scaffold, having the base pattern, after having been radially compressed to ODPR. The radially compressed shape is used to design the new pattern, which is applied to a precursor tube having an outer diameter ODPR. The new pattern can have a plurality of W-shaped closed cells, each W-shape closed cell bounded by struts oriented in such a way to form interior angles from about 80 degrees to about 95 degrees between every two adjacent struts.

    Stents with high radial strength and methods of manufacturing same
    2.
    发明授权
    Stents with high radial strength and methods of manufacturing same 有权
    具有高径向强度的支架及其制造方法

    公开(公告)号:US08303644B2

    公开(公告)日:2012-11-06

    申请号:US12831440

    申请日:2010-07-07

    IPC分类号: A61F2/82

    摘要: Polymeric stents having fracture toughness and resistance to recoil after deployment are disclosed along with methods of manufacturing such stents. Improvements to mechanical characteristics and other improvements may be achieved by having polymer chains within individual stent struts oriented in a direction that is closer to or in line with the axis of the individual stent struts. The struts are connected to each other by hinge elements that are configured to bend during crimping and deployment of the stent. The hinge elements may be tangent or non-tangent to the adjoining struts so as to form W-shaped closed cells arranged in an offset brick pattern in which the size each W-shaped closed cell can be defined in part by a curvilinear length that is approximately 4.5 mm, which allows the stent to be crimped down to an OD of about 1.3 mm and expanded to an OD of at least about 3.5 mm.

    摘要翻译: 公开了具有断裂韧性和部署后反冲性的聚合物支架以及制造这种支架的方法。 机械特性和其它改进的改进可以通过使单独的支架支柱内的聚合​​物链沿与单个支架支柱的轴线更接近或一致的方向定向来实现。 支柱通过构造成在支架的压接和展开期间弯曲的铰链元件彼此连接。 铰链元件可以与邻接的支柱相切或非切线,从而形成布置成偏移砖图案的W形闭孔,其中每个W形闭孔的尺寸可以部分地由曲线长度限定, 约4.5mm,其允许支架卷曲到约1.3mm的外径并且扩张至至少约3.5mm的外径。

    Polymeric Stents and Method of Manufacturing Same
    5.
    发明申请
    Polymeric Stents and Method of Manufacturing Same 失效
    聚合物支架及其制造方法相同

    公开(公告)号:US20110270384A1

    公开(公告)日:2011-11-03

    申请号:US12772155

    申请日:2010-04-30

    申请人: Brenna Hearn Lord

    发明人: Brenna Hearn Lord

    IPC分类号: A61F2/82 B23P11/00

    摘要: A pattern is used to form a stent scaffold from a polymeric precursor tube having a particular outer diameter. A new pattern can be derived from a base pattern, wherein the new pattern can be used to form a stent scaffold from a precursor tube having an outer diameter ODPR smaller than that needed for the base pattern. The new pattern can be derived by determining the shape of a stent scaffold, having the base pattern, after having been radially compressed to ODPR. The radially compressed shape is used to design the new pattern, which is applied to a precursor tube having an outer diameter ODPR. The new pattern can have a plurality of W-shaped closed cells, each W-shape closed cell bounded by struts oriented in such a way to form interior angles from about 80 degrees to about 95 degrees between every two adjacent struts.

    摘要翻译: 使用图案从具有特定外径的聚合物前体管形成支架支架。 可以从基本图案导出新的图案,其中可以使用新图案从具有小于基底图案所需的外径ODPR的前体管形成支架支架。 可以通过在经径向压缩至ODPR之后确定具有基本图案的支架支架的形状来获得新图案。 径向压缩形状用于设计新的图案,其应用于具有外径ODPR的前体管。 新图案可以具有多个W形封闭单元,每个W形闭合单元以由支柱定向的方式定向,以形成每两个相邻支柱之间的约80度至约95度的内角。