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    Automated control for detection of flow limitation
    1.
    发明授权
    Automated control for detection of flow limitation 有权

    公开(公告)号：US10549053B2

    公开(公告)日：2020-02-04

    申请号：US15151641

    申请日：2016-05-11

    Applicant: ResMed Limited

    Inventor： Jeffrey Peter Armitstead ,  Peter Edward Bateman ,  David John Bassin

    IPC: A61M16/00

    Abstract: A respiratory flow limitation detection device, which can include an airway pressure treatment generator, determines a flow limitation measure 506 based one or more shape indices for detecting partial obstruction and a measure of a patient's ventilation or respiratory duty cycle. The shape indices may be based on function(s) that ascertain the likelihood of the presence of M-shaped breathing patterns and/or chair-shaped breathing patterns. The measure of ventilation may be based on analysis of current and prior tidal volumes to detect a less than normal patient ventilation. The duty cycle measure may be a ratio of current and prior measures of inspiratory time to respiratory cycle time to detect an increase in the patient's inspiratory cycle time relative to the respiratory cycle time. A pressure setting based on the flow limitation may then be used to adjust the treatment pressure to ameliorate the patient's detected flow limitation condition.

    METHODS AND APPARATUS FOR PRESSURE TREATMENT MODULATION
    4.
    发明申请
    METHODS AND APPARATUS FOR PRESSURE TREATMENT MODULATION 审中-公开
    压力调节方法与装置

    公开(公告)号：US20150114396A1

    公开(公告)日：2015-04-30

    申请号：US14398266

    申请日：2013-05-01

    Applicant: ResMed Limited

    Inventor： Dinesh Ramanan ,  Jeffrey Peter Armitstead

    IPC: A61M16/00 ,  A61M16/20 ,  A61M16/06

    CPC classification number: A61M16/0069 ,  A61M16/024 ,  A61M16/1055 ,  A61M16/1065 ,  A61M16/107 ,  A61M16/12 ,  A61M16/16 ,  A61M2016/0027 ,  A61M2016/0039 ,  A61M2202/0208 ,  A61M2205/21 ,  A61M2205/3365 ,  A61M2205/502 ,  A61M2202/0007

    Abstract: Respiratory pressure treatment apparatus include automated methodologies for controlling modulation of pressure during an inspiratory phase or an expiratory phase of patient respiration. The changes in pressure result in various pressure waveforms that may be suitable for treating patients suffering from respiratory insufficiency such as Chronic Obstructive Pulmonary Disease. In example embodiments, a pressure rise or pressure increase may be controlled during a period of patient expiration by implementation of linear, cubic and/or quartic functions that serve as control parameters in a processor that controls a flow generator. One or more of the functions may optionally serve as a control parameter to control the pressure increase during an expiration period and a following decrease during the period of expiration. In some embodiments, such functions may further control a decrease in pressure during a period of patient inspiration, such as a decrease prior to mid-inspiration.

    Abstract translation: 呼吸压力治疗装置包括用于控制患者呼吸的吸气阶段或呼气阶段期间压力调节的自动化方法。 压力的变化导致可能适合于治疗患有呼吸功能不全的患者的各种压力波形，例如慢性阻塞性肺疾病。 在示例性实施例中，可以通过实施用作控制流发生器的处理器中的控制参数的线性，立方和/或四次函数来在病人期满期间控制压力升高或压力增加。 一个或多个功能可以可选地用作控制参数以控制在期满期间的压力增加和在期满期间的随后的减少。 在一些实施例中，这样的功能可以进一步控制在患者吸气期间的压力降低，例如在中间吸气之前的减少。

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