GAS DETECTION APPARATUS
    1.
    发明申请

    公开(公告)号:WO2018222803A1

    公开(公告)日:2018-12-06

    申请号:PCT/US2018/035285

    申请日:2018-05-31

    CPC classification number: G01N33/0013 G01N33/0037

    Abstract: A gas detection apparatus for detecting the concentration of a first gas component contained in a gas under measurement includes a gas conversion section for converting the first gas component to a second gas component, a gas detection section whose electrical characteristics change with a change in the concentration of the second gas component when the gas detection section is in an activated state, and a detection state setting section. During a detection period, the detection state setting section sets the state of gas detection by the gas detection section to a detection executed state in which the gas detection section can detect the second gas component. During periods which are not the detection period, the detection state setting section sets the state of gas detection by the gas detection section to a detection suspended state in which the gas detection section does not detect the second gas component.

    HANDPIECE FOR RESPIRATORY MONITOR
    2.
    发明申请

    公开(公告)号:WO2018098483A1

    公开(公告)日:2018-05-31

    申请号:PCT/US2017/063483

    申请日:2017-11-28

    Abstract: A device for use with a respiratory monitor is disclosed that includes features for collecting and guiding a breath gas sample from a user. The device includes a breath intake structure connected to a handheld body structure. The breath intake structure may include one or more permeable membranes to filter particular substances, such as bacteria, viruses, and microbes, from the breath gas sample before it proceeds through the body structure. The device further includes one or more pre-conditioning elements that pretreats the breath gas sample before it enters a respiratory monitor. In some embodiments, the device may include a mouthpiece and body that are used to collect and guide a breath gas sample to a nitric oxide detection device. Moisture is removed from the breath gas sample using a desiccant loaded into a pre-conditioning cartridge. The mouthpiece may be removably connected to the body and disposable. Interchangeable pre-conditioning cartridges may allow use of different cartridges and different pre-conditioning materials with the device.

    APPARATUS AND METHOD FOR OFFLINE COLLECTION OF BREATH SAMPLES FOR NITRIC OXIDE MEASUREMENT

    公开(公告)号:WO2019018121A1

    公开(公告)日:2019-01-24

    申请号:PCT/US2018/040508

    申请日:2018-06-30

    Abstract: A breath collection and storage apparatus is disclosed for collecting and storing samples of exhaled breath for later analysis of nitric oxide contained in collected breath samples. The described apparatus provides for inhaling air into the lungs via a one-way air inflow portal through an airflow chamber via an inhalation/exhalation portal. Air inhaled into the lungs is then expelled back into the airflow chamber via the inhalation/exhalation portal and flowed into a breath storage vessel. A flow meter monitor, such as a flow meter or pressure gauge can be employed to monitor and control the rate of flow of the exhaled breath. A three-way valve can be incorporated into the air outflow portal to selectively permit discharge of exhaled breath to the outside or into the breath storage vessel. If desired, a programmable controller in electrical connection with the flow meter and three-way valve can be employed to maneuver the three-way valve to discharge and collection positions to allow for collecting and storing preselected portions of the exhaled breath. In addition, a flow rate restriction mechanism can be employed to automatically control the flow rate of exhaled air (breath) through the airflow chamber.

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