Respiratory flow sensor
    1.
    发明授权
    Respiratory flow sensor 失效
    呼吸流量传感器

    公开(公告)号:US07032463B2

    公开(公告)日:2006-04-25

    申请号:US10960276

    申请日:2004-10-08

    IPC分类号: G01F1/37

    摘要: A respiratory tract differential-pressure flow sensor, including a tube having a distal end that is insertable into a respiratory tract, an interfering body disposed within the tube proximal to the distal end and having a first edge facing one end of the tube and a second edge facing away from the end, the interfering body extending across the diameter of the tube, a first pressure sensing port operative to sense an air pressure, the first port being disposed in the first edge not abutting the wall of the tube, and a second pressure sensing port operative to sense an air pressure, the second port being disposed in the second edge not abutting the wall of the tube, where either of the edges is inclined inwardly towards the axis of the interfering body extending across the diameter of the tube.

    摘要翻译: 一种呼吸道差压流量传感器,包括具有可插入呼吸道的远端的管,设置在所述管内靠近所述远端并具有面向所述管的一端的第一边缘的干扰体, 所述干涉体横跨所述管的直径延伸,所述干扰体延伸穿过所述管的直径,第一压力感测端口,用于感测空气压力,所述第一端口设置在所述第一边缘中,而不邻接所述管的壁;以及第二 压力感测端口可操作以感测空气压力,第二端口设置在第二边缘中,而不是邻接管的壁,其中任一边缘向内倾斜朝向穿过管的直径延伸的干涉体的轴线。

    Respiratory flow sensor
    2.
    发明申请
    Respiratory flow sensor 失效
    呼吸流量传感器

    公开(公告)号:US20050109122A1

    公开(公告)日:2005-05-26

    申请号:US10960276

    申请日:2004-10-08

    IPC分类号: A61B5/087 G01F1/37 G01F1/40

    摘要: A respiratory tract differential-pressure flow sensor, including a tube having a distal end that is insertable into a respiratory tract, an interfering body disposed within the tube proximal to the distal end and having a first edge facing one end of the tube and a second edge facing away from the end, the interfering body extending across the diameter of the tube, a first pressure sensing port operative to sense an air pressure, the first port being disposed in the first edge not abutting the wall of the tube, and a second pressure sensing port operative to sense an air pressure, the second port being disposed in the second edge not abutting the wall of the tube, where either of the edges is inclined inwardly towards the axis of the interfering body extending across the diameter of the tube.

    摘要翻译: 一种呼吸道差压流量传感器,包括具有可插入呼吸道的远端的管,设置在所述管内靠近所述远端并具有面向所述管的一端的第一边缘的干扰体, 所述干涉体横跨所述管的直径延伸,所述干扰体延伸穿过所述管的直径,第一压力感测端口,用于感测空气压力,所述第一端口设置在所述第一边缘中,而不邻接所述管的壁;以及第二 压力感测端口可操作以感测空气压力,第二端口设置在第二边缘中,而不是邻接管的壁,其中任一边缘向内倾斜朝向穿过管的直径延伸的干涉体的轴线。

    Differential pressure sensor with sloped strut edges for respiratory monitoring
    3.
    发明授权
    Differential pressure sensor with sloped strut edges for respiratory monitoring 失效
    具有倾斜支柱边缘的差压传感器用于呼吸监测

    公开(公告)号:US06802225B2

    公开(公告)日:2004-10-12

    申请号:US10200764

    申请日:2002-07-24

    IPC分类号: G01F137

    摘要: A differential-pressure flow sensor for airflow measurement in the presence of water condensation, for use with mechanical ventilators. The pressure-sensing ports at either end of the interfering body are displaced from the inner surface of the surrounding tubing, so as to prevent obstruction of the pressure-sensing ports by free flowing condensed water. The leading edge of the interfering body is angulated so as to deflect airflow towards the pressure-sensing port on the trailing edge of the interfering body, thereby flushing water droplets away from the port. The sides of the interfering body are sloped so as to generate turbulent boundary layer airflow at areas distant from the pressure-sensing ports, thereby encouraging water condensation away from the ports.

    摘要翻译: 用于在水冷凝存在下进行气流测量的差压流量传感器,用于机械通气机。 干扰体的任一端处的压力感测端口从周围管道的内表面移位,以便防止压力感测端口由自由流动的冷凝水阻塞。 干扰体的前缘是有角度的,从而使气流朝向干扰体的后缘上的压力感测端口偏转,从而将水滴从端口冲洗掉。 干扰体的侧面是倾斜的,以便在远离压力感测端口的区域处产生湍流边界层气流,从而促使水从端口流出。

    Multi-Layer Endotracheal Tube Apparatus
    5.
    发明申请
    Multi-Layer Endotracheal Tube Apparatus 审中-公开
    多层气管内管装置

    公开(公告)号:US20120174920A1

    公开(公告)日:2012-07-12

    申请号:US13381259

    申请日:2010-07-01

    IPC分类号: A61M16/04

    摘要: Multi layer endotracheal tube apparatus (800) comprising an outer flexible elongated tube layer (802) having a proximal end (816) and a distal end (818), defining an inner surface (820) therebetween, at least one flexible elongated inner tube layer (804) having a proximal end (822) and a distal end (824), defining an inner surface (828), the distal end (824) of the inner tube layer (804) defining a distal port section (830), the inner tube layer (804) extending along inner length of the outer tube layer (802), the distal end (824) of the inner tube layer (804) detachably coupled along a closed circumference of the inner surface (820) of the outer tube layer (802), and at least one closure mechanism (806) operative to close the distal port section (830), and detach the distal end (824) of the inner tube layer (804) from the inner surface (820) of the outer tube layer.

    摘要翻译: 多层气管内管装置(800)包括具有近端(816)和远端(818)的外部柔性细长管层(802),其在其间限定内表面(820),至少一个柔性细长内管层 (804)具有限定内表面(828)的近端(822)和远端(824),所述内管层(804)的远端(824)限定远端口部分(830) 沿着所述外管层(802)的内部长度延伸的内管层(804),所述内管层(804)的远端(824)可沿着所述外管层(802)的内表面(820)的封闭圆周 层(802)和至少一个闭合机构(806),其操作以关闭所述远端口部分(830),并且将所述内管层(804)的远端(824)与所述内管层(804)的所述内表面(820) 外管层。

    DETERMINING FUNCTIONAL RESIDUAL LUNG CAPACITY
    7.
    发明申请
    DETERMINING FUNCTIONAL RESIDUAL LUNG CAPACITY 审中-公开
    确定功能残留肺功能

    公开(公告)号:US20110112424A1

    公开(公告)日:2011-05-12

    申请号:US12988931

    申请日:2009-04-23

    IPC分类号: A61B5/091 A61B5/08 A61M16/00

    摘要: Determining functional residual lung capacity (FRC) by changing a subject's inspirium FiO2 by a predetermined amount, and a) for each breath in a series of breaths subsequent to changing the FiO2, determining expiratory tidal volume, determining expiratory fractional N2 tidal volume, multiplying the expiratory tidal volume by an absolute difference between the expiratory fractional N2 tidal volume of the breath and that of an immediately preceding breath for a first multiplication result, dividing the first multiplication result by the sum of the differences for a first division result, and multiplying the fractional N2 tidal volume by the sum of the first division results of the breaths for a second multiplication result, and b) dividing the sum of the second multiplication results of the breaths by the absolute difference between the fractional N2 tidal volume of the first and last breaths to produce a measurement of the subject's FRC.

    摘要翻译: 通过将受试者的灵敏度FiO2改变预定量来确定功能性残余肺容量(FRC),以及a)在改变FiO2之后的一系列呼吸中的每次呼吸,确定呼气潮气量,确定呼气分数N2潮气量,将 呼气潮气量与第一相乘结果之间的呼气分数N2潮气量与紧接在前的呼吸之间的绝对差异绝对差异,将第一乘法结果除以第一除法结果的差值之和,并将 分数N 2潮气量乘以第二乘积结果的呼吸的第一分割结果的总和,以及b)将呼吸的第二乘积结果的和除以第一和最后一个的N2分压之间的绝对差 呼吸,以产生受试者的FRC的测量。