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    • 3. 发明授权
    • Nitinol alloy design for sheath deployable and re-sheathable vascular devices
    • 镍钛诺合金设计,用于护套可展开和可再包层的血管装置
    • US06706053B1
    • 2004-03-16
    • US09561747
    • 2000-04-28
    • John F. BoylanScott J. Huter
    • John F. BoylanScott J. Huter
    • A61M2900
    • A61F2/013A61F2002/018A61F2230/0006A61F2230/0067
    • An embolic protection device that employs a superelastic alloy self-expanding strut assembly with a small profile delivery system for use with interventional procedures is disclosed. The expandable strut assembly is covered with a filter element and both are compressed into a restraining sheath for delivery to a deployment site downstream and distal to the interventional procedure. Once at the desired site, the restraining sheath is retracted to deploy the embolic protection device, which captures flowing emboli generated during the interventional procedure. The expandable strut assembly is made from a superelastic alloy such as nickel-titanium or nitinol, and includes a ternary element in order to minimize the stress hysteresis of the superelastic material. The stress hysteresis is defined by the difference between the loading plateau stress and the unloading plateau stress of the superelastic material. The resulting delivery system including the restraining sheath has a small profile and has a thin wall.
    • 公开了一种栓塞保护装置,其采用具有小型轮廓输送系统的超弹性合金自扩张支架组件用于介入程序。 可膨胀支柱组件被过滤元件覆盖,并且两者被压缩成约束护套,用于递送到介入过程下游和远端的部署部位。 一旦在期望的位置,约束护套被缩回以部署栓塞保护装置,其捕获在介入手术期间产生的流动栓塞。 可膨胀支柱组件由镍 - 钛或镍钛镍超弹性合金制成,并且包括三元元件以使超弹性材料的应力滞后最小化。 应力滞后由载荷平台应力与超弹性材料的卸载平台应力之间的差异定义。 所产生的包括约束鞘的输送系统具有小的轮廓并且具有薄壁。
    • 5. 发明授权
    • Devices configured from heat shaped, strain hardened nickel-titanium
    • 由热变形硬化镍钛构成的器件
    • US07938843B2
    • 2011-05-10
    • US10457218
    • 2003-06-09
    • John F. BoylanKeif FitzgeraldZhi Cheng Lin
    • John F. BoylanKeif FitzgeraldZhi Cheng Lin
    • A61M29/00A61F11/00
    • A61F2/013A61F2002/018A61F2210/0023A61F2230/0006A61F2230/0067A61M2025/09141C22F1/006
    • Cold worked nickel-titanium alloys that have linear pseudoelastic behavior without a phase transformation or onset of stress-induced martensite as applied to a medical device having a strut formed body deployed from a sheath is disclosed. In one application, an embolic protection device that employs a linear pseudoelastic nitinol self-expanding strut assembly with a small profile delivery system for use with interventional procedures is disclosed. The expandable strut assembly is covered with a filter element and both are compressed into a restraining sheath for delivery to a deployment site downstream and distal to an interventional procedure. Once at the desired site, the restraining sheath is retracted to deploy the embolic protection device, which captures flowing emboli generated during the interventional procedure. Linear pseudoelastic nitinol is used in the medical device as distinct from non-linear pseudoelastic (i.e., superelastic) nitinol.
    • 公开了一种冷加工的镍 - 钛合金,其具有线性假弹性特性,而不会发生应变诱发马氏体的相变或起始应用于具有从护套展开的支柱成形体的医疗装置。 在一个应用中,公开了一种栓塞保护装置,其采用线性假弹性镍钛诺自扩张支架组件,其具有用于介入程序的小型轮廓输送系统。 可膨胀支柱组件被过滤元件覆盖,并且两者被压缩成约束护套,用于递送到介入过程下游和远端的部署部位。 一旦在期望的位置,约束护套被缩回以部署栓塞保护装置,其捕获在介入手术期间产生的流动栓塞。 在医疗装置中使用线性假弹性镍钛诺不同于非线性假弹性(即超弹性)镍钛诺。