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    • 89. 发明授权
    • Method and apparatus for venous drainage and retrograde coronary perfusion
    • 静脉引流和逆行冠状动脉灌注的方法和装置
    • US07695452B2
    • 2010-04-13
    • US10997739
    • 2004-11-23
    • Jay A. Lenker
    • Jay A. Lenker
    • A61M29/00A61M31/00A61M37/00
    • A61M1/3653A61M1/3613A61M1/3656A61M1/3659A61M1/3664A61M2025/1013A61M2202/047
    • A system is disclosed for cannulating the vena cava of a patient during cardiopulmonary bypass procedures. Such cannulation is necessary for drainage of venous blood from the patient so that it may be oxygenated and pumped back to the patient to perfuse tissues during cardiac surgery and, more specifically, during periods of ischemic cardiac arrest or dysfunction. The device of the present invention not only provides venous drainage for cardiopulmonary bypass, but also performs the function of routing cardioplegic solution through the heart in the retrograde direction. Such cardioplegia provides protection to the heart during periods of ischemic cardiac arrest. This invention replaces a plurality of cannulae currently used for open-heart surgery, thus simplifying the surgical field and improving visibility of the heart. The device allows for the delivery of retrograde cardioplegia to the coronary circulation of both the right and the left side of the heart. The device further includes protection mechanisms to prevent overinflation or excessive pressurization of the right atrium during retrograde delivery of cardioplegia solution.
    • 公开了一种用于在体外循环手术期间插入患者的腔静脉的系统。 这种插管对于从患者排出静脉血是必要的,使得其可以被氧合并泵送回患者以在心脏手术期间更具体地灌注组织,更具体地,在缺血性心脏骤停或功能障碍期间。 本发明的装置不仅提供用于体外循环的静脉引流,而且还执行沿逆行方向通过心脏路由心脏停搏溶液的功能。 这种心脏停跳在缺血性心脏骤停期间为心脏提供保护。 本发明代替目前用于开心手术的多个套管,从而简化了手术领域并提高了心脏的可见度。 该装置允许将逆行心麻痹递送到心脏右侧和左侧的冠状动脉循环。 该装置还包括用于在逆行递送心麻痹液期间防止右心房过度充气或过度加压的保护机制。