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    Medical guidewire
    11.
    发明授权
    Medical guidewire 有权

    公开(公告)号：US10258467B2

    公开(公告)日：2019-04-16

    申请号：US15389224

    申请日：2016-12-22

    Applicant: BOSTON SCIENTIFIC SCIMED, INC.

    Inventor： Dongming Hou ,  John Jianhua Chen ,  Robert Chang ,  Takashi H. Ino ,  Benjamin T. Sutton

    IPC: A61F2/24 ,  A61M25/09

    Abstract: A guidewire system may include a guidewire having a relatively stiff proximal section and a relatively flexible distal section joined by a transition region, and a TAVI device slidably disposed on the guidewire. The guidewire may include an expandable element disposed about the transition region. The expandable element may be configured to expand from a collapsed configuration to an expanded configuration. The guidewire may include an expandable element disposed at the distal end. The distal section may be pre-configured to form more than one distal loop. A method of protecting an apex of a left ventricle during a TAVI procedure may include inserting a guidewire into the left ventricle, positioning a transition region adjacent the apex, expanding an expandable element such that the expandable element spans the apex, advancing a TAVI device distally over the guidewire to an aortic valve, and performing a TAVI procedure at the aortic valve.

    DUAL-LAYER BALLOON DESIGN AND METHOD OF MAKING THE SAME
    17.
    发明申请
    DUAL-LAYER BALLOON DESIGN AND METHOD OF MAKING THE SAME 审中-公开
    双层气球设计及其制作方法

    公开(公告)号：US20160089517A1

    公开(公告)日：2016-03-31

    申请号：US14870892

    申请日：2015-09-30

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： John Jianhua Chen ,  Daniel James Horn ,  Adam Joseph Royer

    IPC: A61M25/10 ,  B29C49/00

    CPC classification number: A61M25/10 ,  A61L29/06 ,  A61M25/1029 ,  A61M2025/1075 ,  B29C49/0021 ,  B29K2067/003 ,  C08L67/02

    Abstract: An expandable medical balloon, the expandable medical balloon comprising a first balloon wall, the first balloon wall comprising a first balloon layer of polyethylene terephthalate having a first intrinsic viscosity, the first layer is outer to a second layer of polyethylene terephthalate, the second balloon layer of polyethylene terephthalate having a second intrinsic viscosity, the second layer is an inner layer, wherein the intrinsic viscosity of the first balloon layer is higher than the intrinsic viscosity of the second balloon layer by about 0.05 dl/g or more.

    Abstract translation: 一种可膨胀医用气囊，该可扩张医用气囊包括一第一球囊壁，该第一球囊壁包括具有第一特性粘度的第一聚对苯二甲酸乙二醇酯层，该第一层位于第二层聚对苯二甲酸乙二醇酯外层，该第二球囊层 的具有第二特性粘度的聚对苯二甲酸乙二醇酯，第二层是内层，其中第一球囊层的特性粘度高于第二球囊层的特性粘度约0.05dl / g或更大。

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