Anthony Lucio Belisario,Paul James Leslie Bennett,Robert James Burchell,Mohammad Qassim Mohammad Khasawneh,Mark Charles Oliver
申请号：
US15567669
公开号：
US20180110954A1
申请日:
2016.04.14
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Ventilator apparatus includes a pump (41) connected to supply pressurised air both to an air reservoir (23) and to an oxygen concentrator (70) that supplies pressurised oxygen to an oxygen reservoir (24). The outlet (50) of the air reservoir (23) is connected to the inlet of a breathing circuit (30) via an entrainment device (56) so that pressurised air from the reservoir entrains atmospheric air. The outlet (84) of the oxygen reservoir (24) is connected via oxygen tubing (99) to the patient end of the breathing circuit (30). A patient valve (90) at the patient end (93) of the breathing circuit (30) opens to allow the patient to exhale via openings (97) in the valve. The oxygen supply is switched to supply oxygen to the breathing circuit (30) during the expiratory phase so that oxygen in the circuit is inhaled during a subsequent inhalation phase.
