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    Embolectomy Catheters And Methods For Treating Stroke And Other Small Vessel Thromboembolic Disorders
    6.
    发明申请
    Embolectomy Catheters And Methods For Treating Stroke And Other Small Vessel Thromboembolic Disorders 审中-公开
    用于治疗中风和其他小血管栓塞性疾病的结肠切除术导管和方法

    公开(公告)号：US20140257245A1

    公开(公告)日：2014-09-11

    申请号：US14286893

    申请日：2014-05-23

    Applicant: MicroVention, Inc.

    Inventor： Robert F. Rosenbluth ,  George R. Greene, JR. ,  Brian J. Cox ,  Thomas S. Sternweiler ,  Sean L. Chow ,  Richard R. Monetti ,  Teresa L. Halverson ,  Maricela D. Walker ,  Robert Pecor

    IPC: A61B17/22 ,  A61B17/221

    CPC classification number: A61B17/22032 ,  A61B17/135 ,  A61B17/221 ,  A61B2017/22034 ,  A61B2017/22044 ,  A61B2017/22077 ,  A61B2017/22084 ,  A61B2017/22094 ,  A61B2017/2212 ,  A61B2017/320716 ,  A61F2/013 ,  A61F2002/016 ,  A61F2002/018 ,  A61F2230/008 ,  A61F2230/0091 ,  A61M2025/0042 ,  A61M2025/0183

    Abstract: Embolectomy catheters, rapid exchange microcatheters, systems and methods for removing clots or other obstructive matter (e.g., thrombus, thromboemboli, embolic fragments of atherosclerotic plaque, foreign objects, etc.) from blood vessels. This invention is particularly useable for percutaneous removal of thromboemboli or other obstructive matter from small blood vessels of the brain, during an evolving stroke or period of cerebral ischemia. In some embodiments, the embolectomy catheters of this invention are advanceable with or over a guidewire which has been pre-inserted through or around the clot. Also, in some embodiments, the embolectomy catheters include clot removal devices which are deployable from the catheter after the catheter has been advanced at least partially through the clot. The clot removal device may include a deployable wire nest that is designed to prevent a blood clot from passing therethrough. The delivery catheter may include telescoping inner and outer tubes, with the clot removal device being radially constrained by the outer tube. Retraction of the outer tube removes the constraint on the clot removal device and permits it to expand to its deployed configuration. An infusion guidewire is particularly useful in conjunction with the embolectomy catheter, and permits infusion of medicaments or visualization fluids distal to the clot.

    Abstract translation: 用于从血管中去除凝块或其他阻塞物（例如，血栓，血栓栓塞，动脉粥样硬化斑块的栓塞碎片，异物等）的系统和方法，快速交换微导管。 本发明特别可用于在脑卒中或脑缺血期间经皮去除血栓栓塞或其他来自脑小血管的阻塞物质。 在一些实施例中，本发明的止血栓塞导管可以在已经插入穿过凝块或围绕凝块的导丝上或之上前进。 此外，在一些实施例中，止血管切除导管包括在导管至少部分地穿过血块前进之后可从导管展开的凝块移除装置。 凝块移除装置可以包括被设计成防止血块从其中通过的可展开的线巢。 输送导管可以包括伸缩的内管和外管，其中血块去除装置由外管径向约束。 外管的收缩消除了对凝块去除装置的约束，并允许其扩展到其部署构型。 输注导丝特别适用于结肠切除术导管，并且可以输送远离凝块的药物或可视化液体。

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