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    MULTI-LUMEN CATHETER INCLUDING A LUMEN HAVING A VARIABLE CROSS SECTIONAL AREA
    1.
    发明申请
    MULTI-LUMEN CATHETER INCLUDING A LUMEN HAVING A VARIABLE CROSS SECTIONAL AREA 审中-公开
    多灯管，包括一个具有可变的交叉区域的灯

    公开(公告)号：US20090054874A1

    公开(公告)日：2009-02-26

    申请号：US12197919

    申请日：2008-08-25

    申请人： William R. Barron ,  Murtaza Amin ,  Kelly B. Powers

    发明人： William R. Barron ,  Murtaza Amin ,  Kelly B. Powers

    IPC分类号： A61M25/00

    CPC分类号： A61M25/0026 ,  A61M25/0032 ,  A61M2025/0035

    摘要： A multi-lumen catheter configured for insertion into the vasculature of a patient for fluid infusion into or fluid aspiration from the patient is disclosed. The multi-lumen catheter includes one or more cross sectionally variable lumens, wherein the cross sectional area of the lumen(s) may be selectively increased, particularly during fluid infusion, in order to enable relatively greater fluid flow rate therethrough. In one embodiment, the multi-lumen catheter includes a deformable first septum for providing an increased cross sectional area for a lumen under high flow rate pressurization, such as power injection. A deformable second septum also deforms to allow for first septum deformation and additionally provides an urging force to restore the first septum to an un-deformed state once lumen pressurization has ceased. In another embodiment, a bi-positional septum is used to selectively increase the cross sectional area of a lumen of the catheter during power injection.

    摘要翻译： 公开了一种构造成用于插入到患者的脉管系统中用于流体输注或从患者流体抽吸的多腔导管。 多腔导管包括一个或多个横截面可变腔，其中，特别是在液体输注期间，可以选择性地增加内腔的横截面面积，以便能够实现相对较大的流体流速。 在一个实施例中，多腔导管包括可变形的第一隔膜，用于在高流速加压（例如动力注射）下为内腔提供增加的横截面面积。 可变形的第二隔膜也变形以允许第一隔膜变形，并且另外提供推动力以在一旦腔加压停止时将第一隔膜恢复到未变形状态。 在另一个实施例中，双功能隔膜用于在动力注射期间选择性地增加导管的内腔的横截面面积。

    RADIOPAQUE AND SEPTUM-BASED INDICATORS FOR A MULTI-LUMEN IMPLANTABLE PORT
    2.
    发明申请
    RADIOPAQUE AND SEPTUM-BASED INDICATORS FOR A MULTI-LUMEN IMPLANTABLE PORT 有权
    用于多层可植入口的无辐射和基于SEPTUM的指示

    公开(公告)号：US20090156928A1

    公开(公告)日：2009-06-18

    申请号：US12267160

    申请日：2008-11-07

    申请人： John G. Evans ,  Mark Henry Vader ,  Murtaza Amin ,  David M. Cise ,  Kelly J. Christian

    发明人： John G. Evans ,  Mark Henry Vader ,  Murtaza Amin ,  David M. Cise ,  Kelly J. Christian

    IPC分类号： A61M5/00 ,  A61B6/12

    CPC分类号： A61M39/0208 ,  A61B6/032 ,  A61M5/007 ,  A61M2039/0211 ,  A61M2039/0238 ,  A61M2205/0211 ,  A61M2205/32

    摘要： An implantable multi-lumen access port including indicators for ascertaining characteristics of the port is disclosed. In one embodiment, the access port comprises a housing that defines a first reservoir and a second reservoir. A first septum and second septum are respectively coupled with the housing to provide selective access to the first and second reservoirs. Each septum includes a plurality of protrusions defined about a periphery thereof that are palpable after implantation of the port in a patient to determine a relative position of the first septum with respect to the second septum. A radiographically observable indicator is also included on a base of the housing, so as to provide information relating to a characteristic of the dual-lumen port, such as suitability for power injection of fluids. The indicator in one embodiment includes a substantially rigid radiopaque component.

    摘要翻译： 公开了一种包括用于确定端口特性的指示器的可植入多管腔入口。 在一个实施例中，进入端口包括限定第一储存器和第二储存器的壳体。 第一隔膜和第二隔膜分别与壳体联接以提供对第一和第二储存器的选择性接近。 每个隔膜包括围绕其周边限定的多个突出部，其在将端口植入患者体内之后可触及以确定第一隔膜相对于第二隔膜的相对位置。 另外，还可以在壳体的基座上设置放射线检查指示器，以提供与双腔口的特征有关的信息，例如用于动力注射流体的适用性。 一个实施例中的指示器包括基本上刚性的不透射线部件。