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    Steerable catheter and methods of making the same
    1.
    发明申请
    Steerable catheter and methods of making the same 有权

    公开(公告)号：US20060151923A1

    公开(公告)日：2006-07-13

    申请号：US11033098

    申请日：2005-01-10

    申请人： Eric Wilkowske ,  Allan Fuentes ,  Xiaoping Guo ,  Xuan Khieu ,  Linda Nemec ,  Richard Stehr

    发明人： Eric Wilkowske ,  Allan Fuentes ,  Xiaoping Guo ,  Xuan Khieu ,  Linda Nemec ,  Richard Stehr

    IPC分类号： B29C43/10 ,  A41D19/00

    CPC分类号： B29D23/00 ,  A61M25/0012 ,  A61M25/0045 ,  A61M25/005 ,  A61M25/0147

    摘要： The present invention is a method of manufacturing a flexible tubular body for catheter, sheath or similar medical device. The method comprises pre-extruding an inner layer of the body from a thermoplastic polymer and then pulling the inner layer over a mandrel and tightening the layer down. If wire lumens were not integrally formed in the inner layer when pre-extruded, then two polymer spaghetti tubes, each with wire lumens, are laid 180 degrees apart axially along the outer surface of the inner layer. Deflection wires are then fed into the wire lumens. A cylindrical wire braid is woven or pulled over the inner layer (and the spaghetti tubes, as the case may be) and tightened down. The aforementioned components are then encased in an outer polymer layer. A heat-shrinkable tube is then placed over the outer layer. A pressurized fluid is injected into each wire lumen to maintain the internal diameter of each wire lumen at a diameter that is greater than the diameter of the deflection wire received in each wire lumen. Heat is then applied to the body and heat-shrinkable tube to cause the layers to laminate together. Once the newly laminated body has sufficiently cooled, the heat-shrinkable tube is removed from the body.

    Steerable catheter using flat pull wires and having torque transfer layer made of braided flat wires
    2.
    发明申请
    Steerable catheter using flat pull wires and having torque transfer layer made of braided flat wires 审中-公开
    使用平拉丝的导向导管，并具有由编织扁线制成的转矩传递层

    公开(公告)号：US20080091169A1

    公开(公告)日：2008-04-17

    申请号：US11953604

    申请日：2007-12-10

    申请人： Wayne Heideman ,  Allan Fuentes ,  Richard Stehr ,  Sarah Cumming ,  Mark Dustrude

    发明人： Wayne Heideman ,  Allan Fuentes ,  Richard Stehr ,  Sarah Cumming ,  Mark Dustrude

    IPC分类号： A61M25/01

    CPC分类号： A61M25/01 ,  A61M25/0012 ,  A61M25/0045 ,  A61M25/0053 ,  A61M25/0147 ,  A61M2025/015

    摘要： A catheter assembly includes an inner liner made of flexible material and an outer layer having a steering mechanism. The steering mechanism includes at least one flat wire and a corresponding lumen through which the flat wire may travel. The steering mechanism may also include at least one pull ring to which the flat wires are attached. A layer of heat shrink material may encompass the outer layer. A braided wire assembly may also be provided in the outer layer, and may be formed by braiding a plurality of flat wires into a wire mesh. The overall cross-section of the catheter assembly is preferably substantially circular. A catheter shaft may include a plurality of segments of differing hardness characteristics. The outer layer typically comprises a melt processing polymer such that the catheter assembly may be laminated using heat.

    摘要翻译： 导管组件包括由柔性材料制成的内衬和具有转向机构的外层。 转向机构包括至少一个扁平线和相应的内管，扁平线可以通过该内管行进。 转向机构还可以包括至少一个牵引环，扁平线连接到该拉环上。 一层热收缩材料可以包围外层。 编织线组件也可以设置在外层中，并且可以通过将多根扁平线编织成丝网而形成。 导管组件的整个横截面优选地基本上是圆形的。 导管轴可以包括具有不同硬度特性的多个部分。 外层通常包括熔融加工聚合物，使得导管组件可以使用热层压。

    Steerable Catheter Using Flat Pull Wires and Method of Making Same
    3.
    发明申请
    Steerable Catheter Using Flat Pull Wires and Method of Making Same 审中-公开
    使用平拉线的导向导管及其制作方法

    公开(公告)号：US20080234660A2

    公开(公告)日：2008-09-25

    申请号：US11647313

    申请日：2006-12-29

    申请人： Sarah Cumming ,  Mark Dustrude ,  Allan Fuentes ,  Wayne Heideman ,  Richard Stehr

    发明人： Sarah Cumming ,  Mark Dustrude ,  Allan Fuentes ,  Wayne Heideman ,  Richard Stehr

    IPC分类号： A61M25/01

    CPC分类号： A61M25/0012 ,  A61M25/0045 ,  A61M25/0053 ,  A61M25/0147 ,  A61M2025/015

    摘要： A catheter assembly includes an inner liner made of flexible material and an outer layer having a steering mechanism. The steering mechanism includes at least one flat wire and a corresponding lumen through which the flat wire may travel. The steering mechanism may also include at least one pull ring to which the flat wires are attached. A layer of heat shrink material may encompass the outer layer. A braided wire assembly, which may have a braid density that varies along the length of the catheter, may also be provided in the outer layer. The overall cross-section of the catheter assembly is preferably substantially circular. A catheter shaft may include a plurality of segments of differing hardness characteristics. The outer layer typically comprises a melt processing polymer such that the catheter assembly may be laminated using heat.

    摘要翻译： 导管组件包括由柔性材料制成的内衬和具有转向机构的外层。 转向机构包括至少一个扁平线和相应的内管，扁平线可以通过该内管行进。 转向机构还可以包括至少一个牵引环，扁平线连接到该拉环上。 一层热收缩材料可以包围外层。 可以具有沿导管长度变化的编织密度的编织线组件也可以设置在外层中。 导管组件的整个横截面优选地基本上是圆形的。 导管轴可以包括具有不同硬度特性的多个部分。 外层通常包括熔融加工聚合物，使得导管组件可以使用热层压。

    Steerable catheter using flat pull wires and method of making same
    4.
    发明申请
    Steerable catheter using flat pull wires and method of making same 审中-公开
    使用平拉丝的导向导管及其制作方法

    公开(公告)号：US20070299424A1

    公开(公告)日：2007-12-27

    申请号：US11647313

    申请日：2006-12-29

    申请人： Sarah Cumming ,  Mark Dustrude ,  Allan Fuentes ,  Wayne Heideman ,  Richard Stehr

    发明人： Sarah Cumming ,  Mark Dustrude ,  Allan Fuentes ,  Wayne Heideman ,  Richard Stehr

    IPC分类号： A61M25/01

    CPC分类号： A61M25/0012 ,  A61M25/0045 ,  A61M25/0053 ,  A61M25/0147 ,  A61M2025/015

    摘要： A catheter assembly includes an inner liner made of flexible material and an outer layer having a steering mechanism. The steering mechanism includes at least one flat wire and a corresponding lumen through which the flat wire may travel. The steering mechanism may also include at least one pull ring to which the flat wires are attached. A layer of heat shrink material may encompass the outer layer. A braided wire assembly, which may have a braid density that varies along the length of the catheter, may also be provided in the outer layer. The overall cross-section of the catheter assembly is preferably substantially circular. A catheter shaft may include a plurality of segments of differing hardness characteristics. The outer layer typically comprises a melt processing polymer such that the catheter assembly may be laminated using heat.

    摘要翻译： 导管组件包括由柔性材料制成的内衬和具有转向机构的外层。 转向机构包括至少一个扁平线和相应的内管，扁平线可以通过该内管行进。 转向机构还可以包括至少一个牵引环，扁平线连接到该拉环上。 一层热收缩材料可以包围外层。 可以具有沿导管长度变化的编织密度的编织线组件也可以设置在外层中。 导管组件的整个横截面优选地基本上是圆形的。 导管轴可以包括具有不同硬度特性的多个部分。 外层通常包括熔融加工聚合物，使得导管组件可以使用热层压。