发明名称 DEMAND OXYGEN SYSTEM
摘要 <p>An intermittent oxygen delivery system for supplying oxygen to a first nare (7) of a nasal cannula in response to patient's exhalation sensed through the second nare (6) which is isolated from the delivery of the oxygen to the first nare.</p>
申请公布号 WO1990011791(A1) 申请公布日期 1990.10.18
申请号 US1990002012 申请日期 1990.04.13
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