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    Automatic high negative pressure relief valve and chest drainage units using same
    79.
    发明授权
    Automatic high negative pressure relief valve and chest drainage units using same 有权
    自动高负压溢流阀和胸腔引流装置使用相同

    公开(公告)号：US07524311B2

    公开(公告)日：2009-04-28

    申请号：US10852228

    申请日：2004-05-25

    申请人： Trinh D. Phung ,  Daniel A. Boardman

    发明人： Trinh D. Phung ,  Daniel A. Boardman

    IPC分类号： A61M1/00 ,  G05D11/00 ,  F16K17/00

    CPC分类号： A61M1/0031 ,  A61M1/0023 ,  Y10T137/2607 ,  Y10T137/7725

    摘要： Featured is an automatic high-negative pressure relief valve and its use in combination with an apparatus for draining fluid from a body. In broad terms the negative pressure relief valve includes a biasing mechanism, a moveable member acted upon by the biasing mechanism and a seating surface. When the pressure within a chamber, in which a portion of the relief valve is in fluid communication with, is less than a predetermined negative pressure, the moveable member is moved by the biasing mechanism to sealing engage the seating surface and when the pressure is at or above the predetermined value, the restoring force of the biasing mechanism is overcome and the moveable member moves away from the seating surface. In an exemplary embodiment, the biasing mechanism is a spring, diaphragm or wave washer.

    摘要翻译： 特色是一种自动高负压减压阀，其与用于从身体排出流体的装置结合使用。 在广义上，负压溢流阀包括偏置机构，由偏置机构作用的可移动构件和就座表面。 当安全阀的一部分与其流体连通的室内的压力小于预定的负压时，可移动构件通过偏置机构移动以密封接合就座表面，并且当压力处于 或高于预定值时，克服了偏置机构的恢复力，并且可移动构件远离座位表面移动。 在示例性实施例中，偏置机构是弹簧，隔膜或波形垫圈。

    Servo-controlled pneumatic pressure oscillator for respiratory impedance measurements and high-frequency ventilation
    80.
    发明申请
    Servo-controlled pneumatic pressure oscillator for respiratory impedance measurements and high-frequency ventilation 审中-公开
    用于呼吸阻抗测量和高频通气的伺服控制气压振荡器

    公开(公告)号：US20070006924A1

    公开(公告)日：2007-01-11

    申请号：US11471181

    申请日：2006-06-20

    申请人： David Kaczka ,  Kenneth Lutchen

    发明人： David Kaczka ,  Kenneth Lutchen

    IPC分类号： F16K17/00

    CPC分类号： A61M16/0096 ,  A61M16/203 ,  A61M2016/0036 ,  A61M2230/40 ,  A61M2230/65 ,  Y10T137/7725

    摘要： A pneumatic ventilation system delivers high amplitude, low frequency oscillatory flows while maintaining the load impedance at a specified mean pressure, thereby accurately controlling mean airway pressure, oscillation amplitude, and frequency content allowing use in applications to optimize high frequency ventilation protocols in patients. The pneumatic ventilation system includes a pneumatic pressure oscillator based on a proportional solenoid valve to provide forced oscillatory excitations to a respiratory system over a bandwidth suitable for mechanical impedance measurements and high frequency ventilation.

    摘要翻译： 气动通气系统提供高振幅，低频率振荡流，同时将负载阻抗保持在指定的平均压力，从而准确控制平均气道压力，振荡幅度和频率含量，从而可用于优化患者的高频通气协议。 气动通气系统包括一个基于比例电磁阀的气动压力振荡器，在适合于机械阻抗测量和高频通风的带宽上为呼吸系统提供强制振荡激励。