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    High performance braided catheter
    12.
    发明授权
    High performance braided catheter 失效
    高性能编织导管

    公开(公告)号：US06824553B1

    公开(公告)日：2004-11-30

    申请号：US09648378

    申请日：2000-08-25

    Applicant: Gene Samson ,  Uriel Hiram Chee ,  Kim Nguyen ,  Edward J. Snyder ,  Erik T. Engelson

    Inventor： Gene Samson ,  Uriel Hiram Chee ,  Kim Nguyen ,  Edward J. Snyder ,  Erik T. Engelson

    IPC: A61M2900

    CPC classification number: A61M25/005 ,  A61M25/0053 ,  A61M25/0054 ,  A61M2025/0081

    Abstract: This is a catheter assembly and a section of that catheter assembly. That catheter assembly may be used in accessing a tissue target within the body, typically a target which is accessible through the vascular system. Central to the invention is the use of a braided metallic reinforcing member, typically of super-elastic alloy ribbon, situated within the catheter body in such a way to create a catheter having an exceptionally thin wall, controlled stiffness, high resistance to kinking, and complete recovery in vivo from kinking situations. The braid may have a single pitch or may vary in pitch along the axis of the catheter or catheter section. The braided ribbon reinforcing member typically is placed between a flexible outer tubing member and an inner tubing member to produce a catheter section which is very flexible but highly kink resistant. The catheter sections made according to this invention may be used alone or in conjunction with other catheter sections either made using the concepts shown herein or made in other ways. The more proximal sections of the catheter assembly are often substantially stiffer than the more distal sections due to the presence of stiff polymeric tubing or metallic tubing or composited materials in the stiffer section.

    Abstract translation: 这是导管组件和导管组件的一部分。 该导管组件可用于进入体内的组织靶，通常是通过血管系统可接近的靶。 本发明的中心是使用位于导管主体内的编织金属加强构件，通常为超弹性合金带，以形成具有特别薄壁，受控刚度，高抗扭结性的导管，以及 从扭结情况完全恢复体内。 编织物可以具有单个间距，或者可以沿着导管或导管部分的轴线变化。 编织带加强构件通常放置在柔性外管构件和内管构件之间以产生非常柔性但高度扭结的导管部分。 根据本发明制造的导管部分可以单独使用或与使用本文所示的概念或以其他方式制成的其它导管部分结合使用。 由于在刚性部分中存在刚性聚合物管或金属管或合成材料，所以导管组件的近端部分通常比较远的部分更坚硬。

    Method of pretreating metal surfaces for subsequent polymer coating
    13.
    发明授权
    Method of pretreating metal surfaces for subsequent polymer coating 失效
    预处理后续聚合物涂层的金属表面的方法

    公开(公告)号：US5750206A

    公开(公告)日：1998-05-12

    申请号：US429599

    申请日：1995-04-27

    Applicant: Robert Hergenrother ,  Uriel Hiram Chee ,  Laurent Schaller

    Inventor： Robert Hergenrother ,  Uriel Hiram Chee ,  Laurent Schaller

    IPC: A61L29/08 ,  A61L33/00 ,  A61M25/09 ,  B32B15/08 ,  C23C16/30 ,  C23C16/50 ,  C08J7/18

    CPC classification number: A61M25/09 ,  A61L29/085 ,  A61L33/0029 ,  Y10T428/2942

    Abstract: This invention relates to a new technique for preparing metal devices such as guidewires for the subsequent attachment of hydrophilic coatings. The invention also relates to guidewires and other devices made according to that method. In one embodiment of the method of this invention, a hydrocarbon residue undercoat is applied to a metal guidewire core by plasma deposition. A photoactive hydrophilic polymer is then deposited on the hydrocarbon residue coating and activated by ultraviolet light. The hydrocarbon residue coating acts as a tie layer between the hydrophilic polymer and the metal guidewire core apparently by providing C--C bonds for the covalent linking of the coating material to the tie layer. The resulting article of this invention is a guidewire having the maneuverability of a metal guidewire and the biocompatibility of a lubricious, hydrophilic polymer.

    Abstract translation: 本发明涉及一种用于制备金属装置的新技术，例如用于随后附着亲水涂层的导线。 本发明还涉及根据该方法制造的导线和其它装置。 在本发明方法的一个实施方案中，通过等离子体沉积将烃基底涂层施加到金属导丝芯上。 然后将光活性亲水性聚合物沉积在烃残余物涂层上并通过紫外光激活。 烃残留涂层在亲水性聚合物和金属导丝芯之间起粘结层的作用，显然是通过提供用于涂层材料与粘结层的共价连接的C-C键。 本发明的所得物品是具有金属导丝的机动性和润滑的亲水性聚合物的生物相容性的导丝。

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