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    CATHETER WITH A DUAL LUMEN MONOLITHIC SHAFT
    51.
    发明公开
    CATHETER WITH A DUAL LUMEN MONOLITHIC SHAFT 有权
    加德满都麻省理工学院DOPPELLUMIGEN MONOLITHISCHEN SCHAFT

    公开(公告)号：EP2869882A1

    公开(公告)日：2015-05-13

    申请号：EP13732718.5

    申请日：2013-06-10

    申请人： Abbott Cardiovascular Systems, Inc.

    发明人： QIU, Hua ,  LIN, Tung-liang

    IPC分类号： A61M25/00 ,  A61M25/10 ,  A61M25/01

    CPC分类号： A61M25/1025 ,  A61M25/0009 ,  A61M25/0026 ,  A61M25/0032 ,  A61M25/0045 ,  A61M25/10 ,  A61M2025/0183 ,  A61M2025/1061

    摘要： A multi-lumen catheter (100) comprising: a tubular shaft member (110) having a proximal end, a distal end and a longitudinal length therebetween, the tubular shaft member having a first lumen (212) and a second lumen (214) defined therein, the first lumen having a first lumen cross-sectional dimension and a length extending at least along a portion of the length of the tubular shaft member, and the second lumen having a second lumen cross-sectional dimension and a length extending along the length of tubular shaft member, characterized in that the tubular shaft member is a monolithic elongate tubular shaft member having an inner core (210) made of a first material, an outer layer (220) made of a second material, and an intermediate tie layer disposed between the inner core and the outer layer, the first material of the inner core defining the first lumen and the second lumen therein, the first lumen cross-sectional dimension being substantially uniform along the length of the first lumen, the second lumen cross-sectional dimension being substantially uniform along the length of the second lumen, and the tubular shaft member having an outer cross-sectional dimension that varies along the length of the tubular shaft member.

    摘要翻译： 具有整体式细长管状轴构件的多腔导管具有近端，远端和其间的纵向长度。 管状轴构件具有沿管状轴构件的长度变化的外侧横截面尺寸。 管状轴构件具有由第一材料制成的内芯和由第二材料制成的外层。 内芯具有限定在其中的第一内腔和第二腔，第一腔具有第一内腔横截面和至少沿着管状轴构件的长度的一部分延伸的长度。 第一管腔横截面沿着第一管腔的长度基本均匀。 第二管腔具有第二管腔横截面和沿管状轴构件的长度延伸的长度。 第二管腔横截面沿第二内腔的长度基本均匀。

    Catheter
    58.
    发明公开
    Catheter 审中-公开
    导管

    公开(公告)号：EP2767303A1

    公开(公告)日：2014-08-20

    申请号：EP14152293.8

    申请日：2014-01-23

    申请人： ASAHI INTECC CO., LTD.

    发明人： Miyata, Naohiko ,  Oshima, Fumiyoshi

    IPC分类号： A61M25/00

    CPC分类号： A61M25/0053 ,  A61M25/0045 ,  A61M25/005 ,  A61M2025/0059

    摘要： In a catheter (1), since the thickness of an intermediate layer (29) is constant from a body (10a) to a distal end portion (10b), the adhesive strength (adhesiveness) between the intermediate layer (29) and an inner layer (24) is uniform from the body (10a) to the distal end portion (10b) of a catheter shaft (10). Therefore, when the catheter (1) is curved, the movement of a braid (26) caused by the curving of the catheter (1) can be uniformly suppressed from the body (10a) to the distal end portion (10b) that is adjacent thereto. Even if, when the catheter (1) is curved, a tensile stress (30a) towards a proximal end acts upon a first outer layer (28a) at the body (10a) and a tensile stress (30b) towards a distal end acts upon a second outer layer (28b) at the distal end portion (10b) adjacent to the body (10a), the first and second outer layers (28a, 28b) are caught by an uneven contour of the intermediate layer (29) by an anchor effect, so that it is possible to prevent peeling of the first and second outer layers (28a, 28b) from an intermediate layer (29).

    摘要翻译： 在导管（1）中，由于中间层（29）的厚度从主体（10a）到远端部（10b）是恒定的，因此中间层（29）与内部 层（24）从主体（10a）到导管轴（10）的远端部分（10b）是均匀的。 因此，当导管（1）弯曲时，由导管（1）的弯曲导致的编织物（26）的移动可以从主体（10a）一致地抑制到相邻的远端部分（10b） 于此。 即使当导管（1）弯曲时，朝向近端的拉应力（30a）作用于主体（10a）处的第一外层（28a）并且朝向远端的拉应力（30b）作用于 在与所述主体（10a）相邻的所述远端部分（10b）处的第二外层（28b），所述第一和第二外层（28a，28b）被所述中间层（29）的不平坦轮廓通过锚 效果，因此可以防止第一和第二外层（28a，28b）从中间层（29）剥离。