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12. 发明授权

US4136693A Constant flow I.V. device 失效
标题翻译：恒流I.V. 设备
公开(公告)号：US4136693A
公开(公告)日：1979-01-30
申请号：US795579
申请日：1977-05-10
申请人： Denis G. Dyke
发明人： Denis G. Dyke
IPC分类号： A61M5/14 , A61M5/168 , A61M5/16
CPC分类号： A61M5/16877 , A61M5/1411 , Y10T137/3021 , Y10T137/7501 , Y10T137/86228
摘要： This invention relates to a novel apparatus useful for the gravity fed delivery of a liquid from a first liquid reservoir to a second liquid reservoir. This apparatus is especially useful for the administration of intravenous (I.V.) solutions, where a constant flow, despite varying conditions of pressure in said second fluid reservoir (i.e. the blood-stream of the patient) is desirable if not absolutely required. The instant novel apparatus includes an upper chamber, means for passing said liquid from said first liquid reservoir to said upper chamber, means for maintaining a predetermined volume of said liquid in said upper chamber, said predetermined volume being less than the total volume of said upper chamber, thereby providing a non-liquid containing volume in said upper chamber, a lower chamber, first fluid communication means between said predetermined volume of liquid and said lower chamber, operable to pass said liquid from said upper chamber to said lower chamber, means for passing said liquid from said lower chamber to said second liquid reservoir, which include a port operably sealed by a filter which, when wet, will pass said liquid, but will not pass gases therethrough, and second fluid communication means between said non-liquid containing volume and said lower chamber. In a preferred embodiment, the instant novel apparatus comprises contiguous chambers, the bottom wall of said upper chamber forming the top wall of said lower chamber, and said first fluid communication means include a valve operable to regulate the flow of liquid therethrough. In this preferred embodiment, said second fluid communication means may be operably sealed by a valve, e.g. a filter valve, which passes gases but not liquids therethrough.
摘要翻译：本发明涉及一种用于将液体从第一液体储存器重力输送到第二液体储存器的新型装置。该装置对于静脉内（I.V.）静脉内溶液的给药特别有用，尽管如果不是绝对需要的话，尽管在所述第二流体储存器（即患者的血液流）中改变的压力条件是恒定的流量。本发明的新颖设备包括上室，用于将所述液体从所述第一液体储存器传送到所述上室的装置，用于在所述上室中保持预定体积的所述液体的装置，所述预定体积小于所述上室的总体积从而在所述上腔室中提供非液体容纳体积，下室，所述预定体积的液体和所述下腔室之间的第一流体连通装置可操作以将所述液体从所述上腔室传送到所述下腔室，将所述液体从所述下部室传送到所述第二液体储存器，所述第二液体储存器包括可被过滤器可操作地密封的端口，所述过滤器在潮湿时将通过所述液体但不会通过气体，并且所述第二流体连通装置在所述非液体含体积和下腔室。在优选实施例中，本新颖设备包括连续的室，所述上室的底壁形成所述下室的顶壁，并且所述第一流体连通装置包括可操作以调节液体通过其中的流动的阀。在该优选实施例中，所述第二流体连通装置可以通过阀例如可操作地密封。过滤阀，其通过气体而不是液体。

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