BREATHABLE GAS VALVE DEVICE FOR RESPIRATORY TREATMENT APPARATUS

    公开(公告)号:US20190111232A1

    公开(公告)日:2019-04-18

    申请号:US16301975

    申请日:2017-05-16

    Applicant: ResMed Limited

    Abstract: A respiratory valve, such as a positive end expiratory pressure valve, permits pressure control for respiratory apparatus such as a ventilator or positive airway pressure device. The valve may include a flexible gas passage cover. The cover may be configured with a first side surface to operatively block and open an aperture of the gas passage at a valve seat to respectively prevent and permit gas flow through the aperture defined by the valve seat. The cover may include a second side surface opposite the first surface. The second surface may include at least one drop section forming a reduction in thickness of the cover between the first surface and the second surface. The first surface may include a coating to reduce friction of a membrane material of the first surface. The rim of the valve seat may comprise a variation in height relative the flexible cover.

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