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    FOAM RESPIRATORY MASK
    2.
    发明申请
    FOAM RESPIRATORY MASK 审中-公开
    泡沫呼吸面具

    公开(公告)号：US20110000492A1

    公开(公告)日：2011-01-06

    申请号：US12735977

    申请日：2009-02-27

    申请人： Lee James Veliss ,  Alicia Kristianne Wells ,  Fiona Catherine Carroll ,  Gerard Michael Rummery ,  David Anthony Pidcock

    发明人： Lee James Veliss ,  Alicia Kristianne Wells ,  Fiona Catherine Carroll ,  Gerard Michael Rummery ,  David Anthony Pidcock

    IPC分类号： A61M16/06

    CPC分类号： A61M16/0683 ,  A61M16/0605 ,  A61M16/0611 ,  A61M16/0666

    摘要： A patient interface for delivering breathable gas to a patient includes a foam interfacing portion adapted to provide a nasal interface to contact under and around the patient's nose in use and including an orifice adapted to surround both the patient's nares in use, and a positioning and stabilizing structure to support the foam interfacing portion in an operative position on the patient's face. The positioning and stabilizing structure is structured to provide a range of rotational, axial, and/or lateral movement to the foam interfacing portion while maintaining a sufficient interface and resisting the application of tube drag and/or headgear tension to the foam interfacing portion.

    摘要翻译： 用于将可透气的气体递送到患者的患者接口包括泡沫接口部分，其适于提供鼻接口以在使用中在患者的鼻子下方和周围接触，并且包括适于围绕患者使用的鼻孔的孔口，以及定位和稳定 结构以将泡沫接合部分支撑在患者面部上的操作位置。 定位和稳定结构被构造成为泡沫接合部分提供一系列旋转，轴向和/或横向移动，同时保持足够的界面并且阻止管阻力和/或头带张力施加到泡沫接口部分。

    Determination of the occurrence of an apnea
    5.
    发明授权
    Determination of the occurrence of an apnea 失效
    确定呼吸暂停发生

    公开(公告)号：US6138675A

    公开(公告)日：2000-10-31

    申请号：US931439

    申请日：1997-09-16

    申请人： Michael Berthon-Jones

    发明人： Michael Berthon-Jones

    IPC分类号： A61B5/087 ,  A61F5/56 ,  A61M16/00

    CPC分类号： A61F5/56 ,  A61B5/087 ,  A61M16/00 ,  A61M16/0051 ,  A61M16/0069 ,  A61B5/7257 ,  A61M2016/0039 ,  A61M2205/15 ,  A61M2230/04 ,  A61M2230/60

    摘要： Methods and apparatus for determining the occurrence of an apnea, patency and/or partial obstruction of the airway are disclosed. Respiratory air flow from a patient is measured to give an air flow signal. The determination of an apnea is performed by calculating the variance of the air flow signal over a moving time window and comparing the variance with a threshold value. One determination of partial obstruction of the airway is performed by detecting the inspiratory part of the air flow signal, scaling it to unity duration and area and calculating an index value of the amplitude of the scaled signal over a mid-portion. Alternatively, the index value is a measure of the flatness of the air flow signal over the mid-portion. One determination of patency of the airway is performed by applying an oscillatory pressure waveform of known frequency to a patient's airway, calculating the magnitude of the component of said air flow signal at the known frequency induced by the oscillatory pressure waveform and comparing the calculated magnitude with a threshold value. Alternatively, the air flow signal is analysed to detect the presence of a component due to cardiogenic activity.

    摘要翻译： 公开了用于确定气道呼吸暂停，通畅和/或部分阻塞的发生的方法和装置。 测量来自患者的呼吸气流以产生气流信号。 通过计算移动时间窗口上的空气流信号的方差并将该方差与阈值进行比较来执行呼吸暂停的确定。 通过检测气流信号的吸气部分，将其缩放为单位持续时间和面积并计算中间部分上的缩放信号的幅度的指标值来执行气道部分阻塞的一个确定。 或者，指数值是空气流动信号在中间部分上的平坦度的量度。 通过将已知频率的振荡压力波形应用于患者的气道，计算由振荡压力波形引起的已知频率的所述空气流信号的分量的大小，并将计算出的大小与 一个阈值。 或者，分析空气流信号以检测由于心源性活动引起的组分的存在。

    DETERMINATION OF LEAK DURING CPAP TREATMENT
    7.
    发明申请
    DETERMINATION OF LEAK DURING CPAP TREATMENT 有权
    在CPAP治疗期间确定漏血

    公开(公告)号：US20100101574A1

    公开(公告)日：2010-04-29

    申请号：US12438758

    申请日：2007-08-30

    申请人： David John Bassin

    发明人： David John Bassin

    IPC分类号： A61M16/00 ,  G01M3/02 ,  G06F19/00

    CPC分类号： A61M16/0057 ,  A61M16/0051 ,  A61M16/024 ,  A61M16/06 ,  A61M2016/0021 ,  A61M2016/003 ,  A61M2016/0036 ,  A61M2205/15 ,  A61M2205/16 ,  A61M2205/3331 ,  A61M2205/50

    摘要： In a CPAP or positive pressure ventilation system, leak is determined at each instant by a lookback for a time as long as single breath to establish the start of an averaging window over which low-pass filtered values used in the determination of a parameter of a leak model are averaged. A jamming index indicates whether the leak is rapidly changing. To the extent that jamming is high, the leak estimate used progressively changes from that using sliding breath-window averaging to a more robust and faster responding low-pass filter method, and adjustment of ventilatory support based on measures employing estimated respiratory flow is slowed down or stopped.

    摘要翻译： 在CPAP或正压通气系统中，只要单次呼吸就可以在每一时刻通过回溯来确定泄漏，以建立平均窗口的开始，在平均窗口中，用于确定参数的低通滤波值 泄漏模型取平均值。 干扰指数表示泄漏是否迅速变化。 在干扰程度较大的情况下，泄漏估算值从使用滑动呼吸窗口平均值到更健壮，更快速响应的低通滤波方法逐渐变化，基于使用估计呼吸流量的措施调节呼吸支持减慢 或停止。

    Low profile d.c. brushless motor for an impeller mechanism or the like
    8.
    发明申请
    Low profile d.c. brushless motor for an impeller mechanism or the like 有权
    低调直径 用于叶轮机构的无刷电动机等

    公开(公告)号：US20050012411A1

    公开(公告)日：2005-01-20

    申请号：US10795207

    申请日：2004-03-05

    申请人： Leslie Hoffman ,  Barton Kenyon ,  David Sears

    发明人： Leslie Hoffman ,  Barton Kenyon ,  David Sears

    IPC分类号： F04D25/06 ,  H02K5/22 ,  H02K7/08 ,  H02K7/14 ,  H02K9/00 ,  H02K7/00

    CPC分类号： H02K7/14 ,  F04D25/062 ,  F04D25/064 ,  F04D25/0646 ,  H02K5/08 ,  H02K5/225 ,  H02K7/085 ,  Y10T29/49009 ,  Y10T29/49243

    摘要： An impeller and at least a portion of a cooperating peripheral volute may be integrated into, and preferably are integrally injection molded with, concentric outer rotor and inner stator assemblies, respectively, to achieve a low profile precision impeller mechanism based on an improved brushless d.c. motor with low length (L) to diameter (D) ratio and suitable for use in a variety of other applications. In one practical embodiment of such a motor, a rotating cap has an inner circumference which is molded about an outer ferromagnetic back ring that in turn supports a permanently magnetized ring shaped rotor magnet having a number of poles of alternating polarity defined about its inner circumference and separated by a relatively small cylindrical air gap from the outwardly projecting radially oriented selectively magnetized poles of a fixed stator assembly. In one exemplary embodiment, the rotor may have 8 poles and the stator may have 9 poles. The fixed stator assembly is preferably integrally molded into a base housing that also includes a precision fixed bearing support that extends upwardly through the center of the stator assembly and that is rotatably coupled to a rotating shaft that extends downwardly from (and preferably is integral with) the center of the rotating cap. A coaxial pair of preloaded ball bearings is preferably supported between an inner cylindrical surface of the fixed bearing support and an outer cylindrical surface of the rotating shaft, to thereby permit the rotor to rotate precisely about the stator with minimal variation in the cylindrical air gap therebetween.

    摘要翻译： 一个叶轮和一个配合的周边蜗壳的至少一部分可以分别集成到同心外转子和内定子组件中，并且优选地整体地注塑成型，以实现基于改进的无刷直流电机的低轮廓精密叶轮机构。 电机长度低（L）至直径（D）比，适用于各种其他应用。 在这种电动机的一个实际实施例中，旋转盖具有围绕外侧铁磁背环模制的内圆周，该内圆周背部又支撑永久磁化的环形转子磁体，该永久磁化的环形转子磁体具有围绕其内圆周限定的交替极性的极数， 由相对小的圆柱形气隙与固定定子组件的向外突出的径向定向的选择性磁化极分隔开。 在一个示例性实施例中，转子可以具有8个极，并且定子可以具有9个极。 固定的定子组件优选地一体地模制到基座壳体中，该基座壳体还包括精确的固定轴承支撑件，其向上延伸穿过定子组件的中心并且可旋转地联接到从（并且优选地与其成一体）向下延伸的旋转轴） 旋转盖的中心。 一对同轴的预载球轴承优选地支撑在固定轴承支撑件的内圆柱表面和旋转轴的外圆柱形表面之间，从而允许转子精确地围绕定子旋转，其中圆柱形空气间隙的变化最小 。