Preflushing unit for carrying out a preflushing operation in a breathing gas circuit of a closed-circuit respirator

    公开(公告)号:US11738164B2

    公开(公告)日:2023-08-29

    申请号:US16772493

    申请日:2018-11-19

    Inventor: Kurt Wenderoth

    CPC classification number: A61M16/1015 A61M16/0891 A61M16/201 A62B7/02 A62B9/02

    Abstract: A preflushing unit (10) preflushes a breathing gas circuit (210) of a closed-circuit respirator (200). A basic body (20) has an inlet port (22), feeding breathing gas from a breathing gas supply (220), an outlet port (24) discharging breathing gas into the breathing circuit, and a flow section (32) fluid connecting a valve chamber (30). A valve body (40) with a sealing surface (42) is arranged in the valve chamber (30). An elastomer body (50) with a counter-sealing surface (52) in the valve chamber, fluid tight separates the flow section from a control section (34). The counter-sealing surface acts with a sealing force against the valve body for sealing the flow section. A control port (26) of the basic body provides a controlled feed of breathing gas from the breathing gas supply into the control section for pressure equalization between the flow section and the control section.

    ENDOTRACHEAL DEVICE FOR MECHANICAL VENTILATION OF A PATIENT

    公开(公告)号:US20230181852A1

    公开(公告)日:2023-06-15

    申请号:US17925931

    申请日:2020-05-18

    Abstract: An endotracheal device for mechanical ventilation of a patient includes a ventilation tube and a barrier. The ventilation tube includes a distal part, with a distal end, intended to be inserted into an airway of a patient, and a proximal part, with a proximal end, intended to be connected to a ventilation machine. The barrier is made of solid viscoelastic material, covers the ventilation tube in the distal area, and is configured to occupy, when inserted, the subglottic region, as well as the glottic region and also the supraglottic region of the larynx of the patient, for which reason the barrier has a variable cross section along the length thereof. The device provides greater safety and a lower incidence of complications in mechanical ventilation of patients.

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