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公开(公告)号:US20040211414A1
公开(公告)日:2004-10-28
申请号:US10249636
申请日:2003-04-28
Applicant: LITTON SYSTEMS, INC.
Inventor: Dean A. CANTRILL , Michael ZUGMAIER
IPC: A61M015/00
CPC classification number: B01D53/0446 , B01D53/047 , B01D2253/108 , B01D2256/12 , B01D2257/102 , B01D2259/40003 , B01D2259/404 , B01D2259/4533
Abstract: A patient ventilator oxygen concentration system (S) has an input air supply (10) for supplying an input gas (12) at a desired pressure. An oxygen concentrating system (14) produces an oxygen concentrated gas output (16) and includes at least 2 operable molecular sieve bed modules (18). An input flow line (22) communicates input gas from the input air supply (10) to the molecular sieve bed modules (18). A medical grade air system (24) produces a medical grade air output (26). The oxygen concentrating system (14) and the medical grade air system (24) are connected in a parallel flow path of the input gas from the input air supply (10). A switch unit system (V) is in an input flow path (22) of the oxygen concentrating system (14) for controllably curtailing a portion of the input gas supplied by the input air supply (10) to at least one molecular sieve bed module (18) while having no input gas reduction effect on remaining molecular sieve bed modules. The switch unit system (V) controllably increases available gas for conversion into medical grade air.
Abstract translation: 患者呼吸机氧浓度系统(S)具有用于以期望的压力供应输入气体(12)的输入空气供应(10)。 氧浓缩系统(14)产生氧气浓缩气体输出(16)并且包括至少2个可操作的分子筛床模块(18)。 输入流线(22)将来自输入空气供应(10)的输入气体与分子筛床模块(18)进行通信。 医疗级空气系统(24)产生医用级空气输出(26)。 氧浓缩系统(14)和医用级空气系统(24)在输入气体的输入气源(10)的并联流路上连接。 开关单元系统(V)位于氧气浓缩系统(14)的输入流动路径(22)中,用于可控地将由输入空气供应(10)供应的输入气体的一部分压缩到至少一个分子筛床模块 (18),而对剩余的分子筛床模块没有输入气体减少效果。 开关单元系统(V)可控地增加用于转换成医疗级空气的可用气体。