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    Cannula and method of manufacture and use
    3.
    发明授权
    Cannula and method of manufacture and use 失效
    插管和制造和使用方法

    公开(公告)号：US06533770B1

    公开(公告)日：2003-03-18

    申请号：US09010296

    申请日：1998-01-21

    申请人： Keke J. Lepulu ,  Sylvia W. Fan

    发明人： Keke J. Lepulu ,  Sylvia W. Fan

    IPC分类号： A61M2500

    CPC分类号： A61M25/0012 ,  A61M25/005 ,  A61M25/0053 ,  A61M2025/0031 ,  A61M2025/0046

    摘要： A cannula having reinforced sections and nonreinforced sections, the nonreinforced sections having openings communicating with the lumen of the cannula. The nonreinforced sections are plain tubing and the reinforced sections are formed by winding a coated elongate member in a helical manner around a mandrel. The coated elongate member preferably has a square cross-sectional shape so that adjacent portions of the coated elongate member engage one another when the coated elongate member is wound around the mandrel. The coated elongate member is then heated so that the coating on adjacent portions of the coated elongate member fuse together to form an integral structure. Another layer of material may be provided on the radially inner or outer wall of the coated elongate member. The resulting tubular body is reinforced by the elongate member which is encased in the fused coating. The tubular body is cut into sections which are fused to the plain tubing sections to form the cannula. The reinforced sections and the plain tubing sections are alternately disposed along all or a portion of the length of the cannula. The openings are formed in the plain tubing sections for withdrawing or delivering fluid into or out of the lumen of the cannula.

    摘要翻译： 具有加强部分和非加强部分的插管，所述非增强部分具有与插管的内腔连通的开口。 非增强部分是扁平管，并且加强部分通过围绕心轴以螺旋方式卷绕涂覆的细长部件而形成。 涂覆的细长构件优选地具有正方形的横截面形状，使得当涂覆的细长构件围绕心轴缠绕时，涂覆的细长构件的相邻部分彼此接合。 然后加热涂覆的细长构件，使得涂覆的细长构件的相邻部分上的涂层熔合在一起以形成整体结构。 可以在涂覆的细长构件的径向内壁或外壁上设置另一层材料。 所得到的管状体由被包裹在熔敷涂层中的细长构件加强。 管状体被切割成与普通管段熔合以形成插管的部分。 增强部分和平原管部分沿插管的长度的全部或一部分交替设置。 开口形成在平原管部分中，用于将流体抽出或输送到套管的内腔中或从套管的内腔输送。

    Methods and devices for maintaining cardiopulmonary bypass and arresting a patient's heart
    5.
    发明授权
    Methods and devices for maintaining cardiopulmonary bypass and arresting a patient's heart 失效
    用于维持心肺旁路并阻止患者心脏的方法和装置

    公开(公告)号：US06974434B2

    公开(公告)日：2005-12-13

    申请号：US10193627

    申请日：2002-07-11

    申请人： Craig P. Roberts ,  John M. Toomasian ,  Sylvia W. Fan

    发明人： Craig P. Roberts ,  John M. Toomasian ,  Sylvia W. Fan

    IPC分类号： A61M1/36 ,  A61M25/00 ,  A61M37/00 ,  A61M1/14

    CPC分类号： A61M25/0021 ,  A61M1/3667 ,  A61M25/0032 ,  A61M25/007 ,  A61M2025/0004 ,  A61M2025/0031 ,  A61M2205/12 ,  A61M2210/125 ,  Y10S128/03

    摘要： An endovascular system for arresting a patient's heart and maintaining the patient on cardiopulmonary bypass. A venous cannula, venting catheter and an aortic occlusion device are all coupled together so that the blood drawn into each of these catheters may be fed to a pump. A manifold has valves which control flows through the venous cannula, venting catheter and aortic occlusion device. A blood storage element is also provided so that the amount of blood in the perfusion circuit may be varied if necessary. The blood storage element is preferably positioned in parallel with the pump so that the pump may be used to add and remove blood to and from the blood storage element.

    摘要翻译： 用于阻止患者心脏并维持患者体外循环的血管内系统。 静脉插管，通气导管和主动脉闭塞装置都联接在一起，使得吸入这些导管中的每一个的血液可以被供给到泵。 歧管具有控制流经静脉插管，通气导管和主动脉闭塞装置的阀。 还提供血液存储元件，使得如果需要，可以改变灌注回路中的血液量。 血液存储元件优选地与泵平行定位，使得泵可以用于向血液存储元件添加血液并从血液存储元件移除血液。