Method and apparatus for improving the comfort of CPAP

    公开(公告)号:US10293127B2

    公开(公告)日:2019-05-21

    申请号:US14527252

    申请日:2014-10-29

    Applicant: ResMed Limited

    Abstract: A low-cost CPAP apparatus in which, upon detection of the transition from inhalation to exhalation, the blower motor is de-energized to allow it to freewheel. When the pressure in the patient mask (or whatever interface is utilized) reaches a minimum pressure level during exhalation, the motor is re-energized and its speed is controlled so to maintain the pressure at a level suitable for exhalation. Upon detection of the transition from exhalation to inhalation, the motor speed is increased to provide higher pressures in the patient mask suitable for inhalation.

    USING MOTOR SPEED IN A PAP DEVICE TO ESTIMATE FLOW
    2.
    发明申请
    USING MOTOR SPEED IN A PAP DEVICE TO ESTIMATE FLOW 审中-公开
    在PAP设备中使用电机速度来估计流量

    公开(公告)号:US20130312750A1

    公开(公告)日:2013-11-28

    申请号:US13713902

    申请日:2012-12-13

    Applicant: ResMed Limited

    Abstract: A method and apparatus are disclosed for determining airflow through a PAP device while applying PAP therapy. The actual speed of a blower 6 is measured. The desired motor current I DES required for the actual speed to approach or maintain a desired speed is used, together with the actual speed RPM ACT, in a flow estimation algorithm to determine flow through the PAP device. The estimation algorithm consists of a two-dimensional look-up table, where the inputs are the desired motor current and actual motor speed, and the output is the flow through the PAP device.

    Abstract translation: 公开了一种用于在应用PAP治疗的同时确定通过PAP装置的气流的方法和装置。 测量鼓风机6的实际速度。 在流量估计算法中,与实际速度RPM ACT一起使用实际速度接近或保持所需速度所需的所需电机电流I DES,以确定通过PAP设备的流量。 估计算法由二维查找表组成,其中输入是所需的电机电流和实际电机速度,输出是通过PAP设备的流量。

    COMPUTER CONTROLLED CPAP SYSTEM WITH SNORE DETECTION
    6.
    发明申请
    COMPUTER CONTROLLED CPAP SYSTEM WITH SNORE DETECTION 审中-公开
    计算机控制CPAP系统与SNORE检测

    公开(公告)号:US20130178761A1

    公开(公告)日:2013-07-11

    申请号:US13710925

    申请日:2012-12-11

    Applicant: RESMED LIMITED

    Abstract: A CPAP apparatus is provided that determines the presence of a snore by the simplified method of using filtered expiratory noise as the measure of intrinsic device noise and comparing that to filtered inspiratory noise. The filtering time constants for inspiratory and expiratory noise are adjusted such that treatment pressure does not cause false snore detection.

    Abstract translation: 提供了一种CPAP装置,其通过使用过滤的呼气噪声的简化方法来确定鼾声的存在,作为固有装置噪声的量度,并将其与过滤的吸气噪声进行比较。 调整吸气和呼气噪声的过滤时间常数,使治疗压力不会引起假鼾检测。

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