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    • 1. 发明申请
    • Pulsatile fluid delivery system
    • 脉动流体输送系统
    • US20070134101A1
    • 2007-06-14
    • US11297989
    • 2005-12-09
    • Kenneth JonesCristo CoreraRichard Hayes
    • Kenneth JonesCristo CoreraRichard Hayes
    • F04B49/06
    • F04B49/065
    • A system for delivering blood, cardioplegia solution, and other medications or fluids in a pulsatile flow pattern to a patient during cardiopulmonary bypass is disclosed. In a preferred embodiment, a pumping apparatus having at least one chamber is utilized in which a pumping action is achieved by compressing one of the chambers with a piston mechanism, while allowing the other chamber to fill with fluid via retracting its respective piston. The instantaneous flow rate of either of the chambers is determined by the speed of the piston. In a preferred embodiment, a pulsatile flow of fluid is achieved by cyclically alternating the velocity of the piston between two different speeds. A desired average flow rate and/or delivery pressure and/or constant pulse pressure is maintained by adjusting the alternating velocities at the desired frequency and duty cycle. The calculations necessary to obtain a desired average flow rate are performed by a microprocessor, which also controls the movement of the pistons.
    • 公开了一种用于在体外循环期间向患者输送血液,心麻痹液和脉动流动模式的其它药物或流体的系统。 在优选实施例中,使用具有至少一个室的泵送装置,其中通过用活塞机构压缩其中一个室来实现泵送动作,同时允许另一个室通过缩回其相应的活塞来填充流体。 任何一个室的瞬时流量由活塞的速度决定。 在优选实施例中,通过在两个不同速度之间循环地交替活塞的速度来实现流体的脉动流。 通过在所需的频率和占空比下调节交变速度来维持期望的平均流速和/或输送压力和/或恒定脉冲压力。 获得所需平均流量所需的计算由微处理器执行,微处理器也控制活塞的运动。
    • 10. 发明申请
    • Modular multilevel access platform and method for erecting the same
    • 模块化多层次访问平台及其搭建方法
    • US20050263351A1
    • 2005-12-01
    • US10854138
    • 2004-05-27
    • Richard Hayes
    • Richard Hayes
    • E04G27/00E04G1/16
    • E04G27/00
    • A multilevel access platform comprising a plurality of stackable modules. Each module includes elongated column members that are generally parallel and coextensive, and a plurality of levels of elongated lateral members that extend transversely between and are connected to the column members. Each level of the lateral members is located at vertically spaced positions relative to the column members and each of the lateral members border a side of the module. At least one platform section is provided for each level and is supported by one level of the lateral members. The stackable modules include a staircase that extends between each level of the lateral members. The multilevel access platform includes a base assembly provided to stabilize and independently secure the multilevel platform. A method for erecting the multilevel access platform includes the step of stacking each module to meet a desired height of a building construction.
    • 一种包括多个可堆叠模块的多层次访问平台。 每个模块包括大致平行和共同延伸的细长柱构件,以及在柱构件之间横向延伸并且连接到柱构件的多个细长横向构件的水平面。 横向构件的每个水平面相对于柱构件位于垂直间隔的位置,并且每个横向构件与模块的一侧相接。 为每个级别提供至少一个平台部分,并由一个侧面部件支撑。 可堆叠模块包括在每个水平的横向构件之间延伸的楼梯。 多层次访问平台包括提供用于稳定和独立地固定多层平台的基座组件。 用于竖立多层次访问平台的方法包括堆叠每个模块以满足建筑结构的期望高度的步骤。