Blood vessel occlusion device
    12.
    发明申请
    Blood vessel occlusion device 审中-公开
    血管闭塞装置

    公开(公告)号:US20050203564A1

    公开(公告)日:2005-09-15

    申请号:US10237569

    申请日:2002-09-05

    申请人: Anthony Nobles

    发明人: Anthony Nobles

    IPC分类号: A61B17/12 A61F2/958 A61M29/00

    摘要: A direct-access device with a thin-profile balloon member is used to occlude a blood vessel. The device is ideally suited for occluding a patient's aorta during stopped-heart cardiac procedures. The device comprises a flexible, thin-profile balloon member which forms a balloon in combination with a tubular member, which inflates the thin-profile balloon member. Together, the balloon member and tubular member occlude a blood vessel. The balloon member is attached near the distal end of the tubular member. The width of the balloon member's outer peripheral contact area, which contacts the inner wall of the blood vessel, is substantially narrower than the balloon member's diameter. The balloon member is made of a low compliance material which prevents the balloon member from expanding by more than 40% radially and 50% longitudinally after the balloon member is initially inflated under ambient pressure to its normal, unstretched shape. The balloon member comprises at least one pair of internal ribs which support the structure of the balloon member and prevent the balloon member from expanding longitudinally by more than 50%. The balloon member with internal ribs may be formed by dipping a mandrel, with grooves or channels formed therein, a number of times into liquid polyethylene, polyurethane or other similar material. The tubular member comprises a first lumen which carries blood between the patient and an external medical device. Another lumen is used to inflate and deflate the thin profile balloon member. Other lumens are used to measure blood pressure, introduce cardioplegia solution or drugs, and/or compensate for over-inflation of the balloon member. The tubular member is preferably bent near the distal end to allow the balloon member to be directly introduced into the blood vessel.

    摘要翻译: 使用具有薄型气囊构件的直接进入装置来封闭血管。 该装置非常适用于在停止心脏心脏手术期间阻塞患者主动脉。 该装置包括柔性的薄型气囊构件,其与管状构件组合形成气囊,其使薄型气囊构件膨胀。 气囊构件和管状构件一起封闭血管。 气囊构件附接在管状构件的远端附近。 球囊构件与血管内壁接触的外周接触区域的宽度比气囊构件的直径大得多。 球囊构件由低顺应性材料制成,其在气囊构件最初在环境压力下膨胀至其正常的未拉伸形状之后,防止球囊构件在径向上膨胀超过40%并纵向膨胀50%。 球囊构件包括至少一对内肋,其支撑球囊构件的结构并防止气囊构件纵向膨胀超过50%。 具有内部肋的气囊构件可以通过将心轴,其中形成有凹槽或通道多次浸入液体聚乙烯,聚氨酯或其它类似材料中来形成。 管状构件包括在患者和外部医疗装置之间携带血液的第一内腔。 另一个腔用于使薄型气囊构件膨胀和放气。 其他流明用于测量血压,引入心麻痹液或药物,和/或补偿球囊构件的过度膨胀。 管状构件优选在远端附近弯曲,以允许气囊构件直接引入血管。