Two or more lumen in injection sheath for vessel access

    公开(公告)号:JP2004041784A

    公开(公告)日:2004-02-12

    申请号:JP2003374572

    申请日:2003-11-04

    IPC分类号: A61M25/08 A61M25/00 A61M25/14

    CPC分类号: A61M25/0032

    摘要: PROBLEM TO BE SOLVED: To downsize a second lumen for making a small amount of fluid pass by forming two or more lumens without increasing the outer diameter. SOLUTION: In the two or more lumens in an injection sheath for vessel access a main lumen 14 through which a medical device or a considerable amount of fluid passes is formed larger in cross-sectional area than that of a second lumen 15 through which a smaller amount of fluid passes. A hub 23 is installed to an annular member within which the main lumen 14 and the second lumen 15 are provided. The hub 23 has a main passage 24, a side arm passage 25 and a second passage 26, inside the hub 23. The main passage 24 communicates with the main lumen 14 axially extending inside the hub 23. The side arm passage 25 communicates with the main lumen 14 and extends in the side direction from the main passage 24. The second passage 26 communicates with the second lumen 15 and extends in the side direction from the second lumen 15. The second passage 26 is formed in the forefront of the side arm passage 25. Thereby, the content volume of the second lumen 15 can be minimized. COPYRIGHT: (C)2004,JPO