VARIABLE THROAT JET VENTURI
    6.
    发明申请

    公开(公告)号:US20220249797A1

    公开(公告)日:2022-08-11

    申请号:US17563380

    申请日:2021-12-28

    IPC分类号: A61M16/12 A61M16/08 A61M16/06

    摘要: A variable throat jet venturi for delivering ventilation gas to a patient includes a jet nozzle, a deformable throat body arranged to receive ventilation gas output by the jet nozzle and defining a gas inlet and a gas outlet, and a housing containing the deformable throat body. The housing may define an entrainment opening which is open to ambient air and a pilot pressure port for pressurizing a plenum between an outer wall of the deformable throat body and an inner wall of the housing. A pilot pressure line may be fluidly coupled to the pilot pressure port. A controller may be programmed to energize the pilot pressure line to constrict the deformable throat body during an exhalation phase of positive end-expiratory pressure (PEEP) therapy.