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    • 35. 发明申请
    • GUIDING MANDREL FOR CATHETER AND SIMILAR INSTRUMENTS AND MANUFACTURING PROCESS THEREOF
    • 导管及其类似仪器及其制造工艺的指导手册
    • WO1985001444A1
    • 1985-04-11
    • PCT/EP1984000305
    • 1984-10-04
    • MÄRZ, PeterPOSTEL, Jürgen
    • A61M23/00
    • A61M25/09033A61J15/00A61J15/0026A61M2025/09091
    • Guiding mandrel for venous or arterial catheters, gastric probes, puncture cannulas or similar instruments, comprised of a wire core (12) enveloped in a sheathing. In order to give the mandrel a good flexibility enabling important bendings, a sufficient stability enabling to advance without being subjected to undesirable deformations or suffering a sudden modification of stability or flexibility, and as well as to manufacture the mandrel in large series, the sheathing is comprised, in the case of a sheathing based on helically wound wire of a plurality of single wires (16) arranged next to each other, helically surrounding the wire core and flat inclined with respect to the axis of the mandrel, respectively the wire core is reduced, in the case of a sheathing based on synthetic material, approximately up to the proximal end of the sheathing.
    • 用于静脉或动脉导管,胃探针,穿刺插管或类似器械的导向心轴由包裹在护套中的线芯(12)组成。 为了使心轴具有良好的灵活性,能够实现重要的弯曲,足够的稳定性能够在不受不期望的变形或突然改变稳定性或柔性的情况下前进,以及大量制造心轴, 包括在基于彼此相邻布置的多个单个线(16)的基于螺旋缠绕的线的护套的情况下,螺旋地围绕线芯并相对于心轴的轴线平坦地倾斜,线芯是 在基于合成材料的护套的情况下,大致减小到护套的近端。
    • 36. 发明申请
    • ADJUSTABLE GUIDEWIRE
    • 可调节的导线
    • WO2017147041A1
    • 2017-08-31
    • PCT/US2017/018638
    • 2017-02-21
    • ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    • LABELLE, JeffreyMORERA, JulioSANTELLO, Marco
    • A61M25/09
    • A61M25/09A61M25/09033A61M2025/09083A61M2025/09158
    • Guidewires useful for cooperating with catheters may be actively steered and/or provide adjustable stiffness. Angle or curvature of a guidewire, and/or flexural modulus of a guidewire, may be adjusted at one or more locations between ends thereof. Variable stiffness segments may include electrically operated compressible and/or extensible materials. Multiple tensile elements may terminate at different body elements to adjust angle or curvature at multiple locations. Multiple circumferentially and/or radially contractible fiber regions may be provided and distributed over a length of a guidewire. Adjustable flexure elements arranged in or along a guidewire may be electrically operated. A flexible core member may be centrally arranged in a tubular body. A flexible guide wire or track may cooperate with electrically operable motor units.
    • 可用于与导管配合的导丝可被主动地转向和/或提供可调节的刚度。 导丝的角度或曲率和/或导丝的弯曲模量可以在其端部之间的一个或多个位置处进行调节。 可变刚度段可以包括电操作的可压缩和/或可伸展材料。 多个拉伸元件可终止于不同的主体元件以调节多个位置处的角度或曲率。 可以提供多个沿周向和/或径向可收缩的纤维区域并且分布在一段导丝上。 布置在导丝中或沿导丝的可调节的挠曲元件可以是电操作的。 柔性核心构件可以居中地布置在管状体中。 柔性导线或轨道可以与电动操作的电机单元配合。