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    Infrared gas analyser and humidity sensor
    11.
    发明授权
    Infrared gas analyser and humidity sensor 失效
    红外气体分析仪和湿度传感器

    公开(公告)号：US5468961A

    公开(公告)日：1995-11-21

    申请号：US221037

    申请日：1994-03-31

    Applicant: Lewis Gradon ,  Andrew B. Clark ,  Paul J. Seakins

    Inventor： Lewis Gradon ,  Andrew B. Clark ,  Paul J. Seakins

    IPC: A61M16/10 ,  A61M16/16 ,  G01N21/35 ,  G01N21/61

    CPC classification number: A61M16/16 ,  A61M16/1085 ,  A61M16/1095 ,  A61M16/161 ,  G01N21/3504 ,  A61M2205/3368

    Abstract: An infrared gas analyser. The analyser comprises a sample cell located in a gas flow, a source of infrared radiation of selected wavelengths which is propagated through the sample cell and an infrared detector which receives radiation which has passed through the cell, The radiation incident on the detector provides a measure of the concentration of selected substances in the gas flow due to one of the wavelengths being selected to be absorbed by the gas being measured. One preferred use is as a humidity sensor in a medical respiratory circuit where at least one selected wavelength is a wavelength strongly absorbed by water. Heating means am associated with the sample cell to vaporize any liquid water which may enter it and the cell is provided with internal baffles to reduce deposition or condensation of water on internal surfaces through which infrared radiation must pass. In one embodiment two selected wavelengths are derived from a single source with the second reference wavelength being a wavelength which is not significantly absorbed by the gas being measured and the source is switched between two power supplies to ensure the output of the detector is equal for the two wavelengths when the concentration of the measured gas is zero.In a second embodiment two single wavelength sources are used and their combined outputs passed through the sample cell.

    Abstract translation: 红外线气体分析仪。 分析仪包括位于气流中的样品池，选定波长的红外辐射源，其通过样品池传播;以及红外检测器，其接收穿过该单元的辐射。入射在检测器上的辐射提供了一种测量 选择的物质在气流中的浓度由于其中一个波长选择被待测气体所吸收。 一种优选的用途是医疗呼吸回路中的湿度传感器，其中至少一个所选择的波长是被水强烈吸收的波长。 加热装置与样品池相关联以蒸发可能进入其中的任何液态水，并且电池设置有内部挡板以减少水在红外辐射必须通过的内表面上的沉积或冷凝。 在一个实施例中，从单个源导出两个所选择的波长，其中第二参考波长是不被待测气体显着吸收的波长，并且源在两个电源之间切换以确保检测器的输出相等于 当测量的气体的浓度为零时，两个波长。 在第二实施例中，使用两个单个波长源，并且其组合输出通过样品池。

    Breathing assistance apparatus
    12.
    发明申请
    Breathing assistance apparatus 有权
    呼吸辅助器具

    公开(公告)号：US20060213515A1

    公开(公告)日：2006-09-28

    申请号：US10544593

    申请日：2004-02-03

    Applicant: Michael Bremner ,  Lewis Gradon

    Inventor： Michael Bremner ,  Lewis Gradon

    IPC: A61M16/00 ,  A62B7/00

    CPC classification number: A61M16/162 ,  A61M16/109 ,  A61M16/165

    Abstract: A medical breathing assistance apparatus (20) for supplying pressurised gases to a patient is disclosed. The breathing assistance apparatus (20) comprises a heating chamber (29) and a pressure chamber (27) both adapted to contain water, and at least one pressure adjusting means (24,25,26). The pressure chamber (27) is connected to the heating chamber (29) and the pressure adjusting means (24,25,26) is located between the heating chamber (29) and a gases supplying means (23) supplying gas to both the pressure chamber (27) and heating chamber (29). The pressure adjusting means (24,25,26) is adapted to convert pressurised gases from the gases supply means (23) to two different pressures, one to each of the heating chamber (29) and the pressure chamber (27), so that water flows from said pressure chamber (27) to the heating chamber (29).

    Abstract translation: 公开了一种用于向患者供应加压气体的医用呼吸辅助装置（20）。 呼吸辅助装置（20）包括适于容纳水的加热室（29）和压力室（27）和至少一个压力调节装置（24,25,26）。 压力室（27）连接到加热室（29），压力调节装置（24,25,26）位于加热室（29）和气体供应装置（23）之间，气体供应装置 室（27）和加热室（29）。 压力调节装置（24,25,26）适于将来自气体供应装置（23）的加压气体转换成两个不同的压力，一个加热室（29）和压力室（27）中的每一个，使得 水从所述压力室（27）流到加热室（29）。

    Breathing assistance apparatus
    15.
    发明申请
    Breathing assistance apparatus 有权
    呼吸辅助器具

    公开(公告)号：US20050056282A1

    公开(公告)日：2005-03-17

    申请号：US10970959

    申请日：2004-10-22

    Applicant: Christopher Robertson ,  Nicholas Smith ,  Lewis Gradon

    Inventor： Christopher Robertson ,  Nicholas Smith ,  Lewis Gradon

    IPC: A61M16/04 ,  A61M16/06 ,  A61M16/08 ,  A61M16/00

    CPC classification number: A61M16/08 ,  A61M16/0493 ,  A61M16/0495 ,  A61M16/06 ,  A61M16/0825

    Abstract: A mouthpiece for oral delivery for oral delivery of CPAP treatment has a vestibular shield for location between the teeth and lips/cheeks of a wearer. The vestibular shield is formed from a very supple material and is dimensioned to extend laterally into the buccal vestibule and vertically to overlap the gums. A gases pathway is provided through the vestibular shield and may include a hard plastic insert through the shield. A connection for connecting the mouthpiece to a breathing circuit is provided which reduces the transfer of forces caused by movement therebetween.

    Abstract translation: 用于口服输送CPAP治疗的口服用具有用于穿戴者的牙齿和嘴唇/脸颊之间的位置的前庭护罩。 前庭护罩由非常柔软的材料形成，并且尺寸设计成横向延伸到颊侧前庭中并且垂直地与牙龈重叠。 通过前庭护罩提供气体通道，并且可以包括穿过护罩的硬塑料插入物。 提供用于将接口连接到呼吸回路的连接，其减少由它们之间的移动引起的力的传递。

    Nasal masks
    16.
    发明申请
    Nasal masks 有权
    鼻罩

    公开(公告)号：US20050028820A1

    公开(公告)日：2005-02-10

    申请号：US10495070

    申请日：2002-10-25

    Applicant: Nicholas Smith ,  Alastair McAuley ,  Chris Nightingale ,  Ivan Milivojevic ,  Lewis Gradon

    Inventor： Nicholas Smith ,  Alastair McAuley ,  Chris Nightingale ,  Ivan Milivojevic ,  Lewis Gradon

    IPC: A61M16/00 ,  A61M16/06 ,  A61M16/10 ,  A61M16/16 ,  A62B18/02 ,  A62B18/08

    CPC classification number: A61M16/06 ,  A61M16/0069 ,  A61M16/024 ,  A61M16/0633 ,  A61M16/0666 ,  A61M16/0683 ,  A61M16/1095 ,  A61M16/16 ,  A61M2205/0216

    Abstract: The present invention is related to patient interfaces, such as nasal masks (2), particularly though not solely for use in providing continuous positive airway pressure therapy or positive pressure ventilation to patients suffering from obstructive sleep apnoea. In a first form the invention is a patient interface that has securement means (601) releasably attaching the interface to headstraps wherein the securement means (601) is slidably engaged with the patient interface. In a second form of the invention the mask headgear is formed of a plurality of straps (701, 702) where at least one of the plurality of straps is slidably engaged with another of the plurality of straps. In a further form the patient interface may be provided with vertically adjustable engaging means (802) that engage the patient interface with the headgear straps.

    Abstract translation: 本发明涉及患者界面，例如鼻罩（2），特别是不仅仅用于向患有阻塞性睡眠呼吸暂停的患者提供持续的气道正压通气或正压通气。 在第一种形式中，本发明是具有固定装置（601）的患者接口，固定装置（601）将接口可释放地附接到头带，其中固定装置（601）可与患者接口滑动接合。 在本发明的第二种形式中，掩模头带由多个带（701,702）形成，其中多个带中的至少一个带可滑动地与多个带中的另一个条带接合。 在另一形式中，患者接口可设置有垂直调节的接合装置（802），其接合患者与头带的接口。

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