Measurement of respiratory effort using a suprasternal sensor
    7.
    发明授权
    Measurement of respiratory effort using a suprasternal sensor 有权
    使用超中心传感器测量呼吸力

    公开(公告)号:US06445942B1

    公开(公告)日:2002-09-03

    申请号:US09396032

    申请日:1999-09-15

    IPC分类号: A61B508

    摘要: The invention is an optical sensor whose output represents or measures movement of the skin of the suprasternal notch, this movement being a measure of respiratory effort. The use of a trough detector, with a time constant long compared with a breath but short compared with the interval between changes in body position, allows detection of the optical signal corresponding to zero effort. Subtraction of the trough signal from the optical signal produces a self-zeroing effort signal which automatically compensates for changes in body position. A soft, low irritant adhesive material, which may be left in place on the skin for several days, allows the sensor to be placed and removed as often as desired without injuring the skin.

    摘要翻译: 本发明是一种光学传感器,其输出表示或测量了上节点的皮肤运动,该运动是呼吸努力的量度。 与身体位置变化之间的间隔相比,与呼吸相比时间常数长的槽检测器的使用允许检测对应于零功率的光信号。 从光信号中减去谷信号产生自动归零功能信号,自动补偿身体位置的变化。 柔软,低刺激性的粘合剂材料可以在皮肤上留置几天,使得传感器能够根据需要经常地放置和去除,而不会伤害皮肤。

    Ventilatory assistance using an external effort sensor
    8.
    发明授权
    Ventilatory assistance using an external effort sensor 有权
    通气辅助使用外部力量传感器

    公开(公告)号:US07100609B2

    公开(公告)日:2006-09-05

    申请号:US10868925

    申请日:2004-06-16

    IPC分类号: A61M16/00

    摘要: The ventilator of the invention uses a respiratory effort sensor that does not rely on respiratory airflow or pressure for synchronization, such as a device that measures movement of the suprasternal notch in response to respiratory efforts. This makes the ventilator relatively immune to leaks. Furthermore, the mask pressure may be modulated so as to servo-control the respiratory effort signal to be zero. Because effort is servo-controlled to be near zero, it is not necessary for the effort signal to be either linear or calibrated, but merely monotonic on effort. Similarly, it is possible to achieve near 100% assistance without having to know or estimate the resistance and compliance of the patient's respiratory system, as in those systems that provide proportional assist ventilation.

    摘要翻译: 本发明的呼吸机使用不依赖于呼吸气流或压力以进行同步的呼吸力传感器,例如测量超声波缺口响应于呼吸努力的运动的装置。 这使呼吸机相对免于泄漏。 此外,可以调制掩模压力,以便将呼吸努力信号的伺服控制为零。 因为努力被伺服控制为接近零,所以努力信号不是线性或校准,而是仅仅是单调的。 类似地,可以获得近100%的帮助,而不必知道或估计患者呼吸系统的阻力和顺应性,如在提供比例辅助通气的那些系统中。