| 摘要 |
A pressure reducing valve for nasal supplying of a flow of air to a patient. The valve comprises a hollowed tubular member ( 1 ) comprising a high pressure air inlet end part ( 3 ), a low pressure air outlet end part ( 4 ) opposite to said inlet end part ( 3 ), and an intermediate air venting part having perforations ( 6, 7 ) for venting a constant and non-adjustable pressure and flow of air from the inner cavity of the tubular member ( 1 ) into the ambient atmosphere. A shielding member (FIG. 3 ) positioned above said perforations ( 6, 7 ) secures the perforations ( 6, 7 ) from becoming obstructed and for directing the air flow from said perforations ( 6, 7 ) towards said air inlet end part ( 3 ).
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