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    Dual lumen catheter and method of use
    13.
    发明授权
    Dual lumen catheter and method of use 失效
    双腔导管及使用方法

    公开(公告)号：US5380276A

    公开(公告)日：1995-01-10

    申请号：US203126

    申请日：1994-02-28

    申请人： John Miller ,  Victor Gamble ,  David Beattie

    发明人： John Miller ,  Victor Gamble ,  David Beattie

    IPC分类号： A61M1/28 ,  A61M25/00 ,  A61M25/14 ,  A61M25/16 ,  A61M1/00 ,  A61M3/00

    CPC分类号： A61M25/0032 ,  A61M1/285 ,  A61M2025/0031 ,  A61M25/0009

    摘要： The invention includes a dual lumen catheter which is a unitary, elongated, flexible catheter tube that is substantially circular in cross-section. The catheter tube has an outer wall member forming a tube having a proximal end and a distal end portion adapted for insertion within a vein or artery of a patient. The outer wall member defines first and second coaxial lumens that are separated by an inner common support wall which is substantially circular and joins the outer wall. The first lumen extends longitudinally between the opposed distal and proximal ends of the catheter tube and terminates coextensive with the distal end portion of the catheter tube. The second lumen extends longitudinally from the proximal end of the catheter tube and terminates proximal to the distal end portion of the catheter tube. The second lumen is crescent-shaped in cross-section and substantially surrounds the first lumen. The cross-sectional areas of the first and second lumens are approximately equal.

    摘要翻译： 本发明包括双腔导管，其是整体的，细长的柔性导管，其横截面基本为圆形。 导管具有形成管的外壁构件，其具有适于插入患者的静脉或动脉中的近端和远端部分的管。 外壁构件限定由内部公共支撑壁分隔的第一和第二同轴腔，其基本上是圆形并且连接外壁。 第一管腔在导管管的相对的远端和近端之间纵向延伸并终止与导管管的远端部分共同延伸。 第二腔从导管管的近端纵向延伸并且终止于导管的远端部分附近。 第二腔是横截面的月牙形并且基本上围绕第一腔。 第一和第二腔的横截面面积近似相等。