公开(公告)号：US5520661A

公开(公告)日：1996-05-28

申请号：US279938

申请日：1994-07-25

申请人： Birendra K. Lal ,  Yuan-Pang S. Ding ,  Michael R. Prisco ,  Rebecca S. Black ,  Robert Passaglia ,  James Richardson

发明人： Birendra K. Lal ,  Yuan-Pang S. Ding ,  Michael R. Prisco ,  Rebecca S. Black ,  Robert Passaglia ,  James Richardson

IPC分类号： A61M5/168 ,  G05D7/01 ,  A61M5/00

CPC分类号： A61M5/16881 ,  G05D7/0113 ,  Y10T137/7879

摘要： The present invention provides an intravenous fluid flow regulator 10 for controlling the I.V. administration of medical fluid to a patient. The fluid flow regulator 10 provides a housing 12 having a top 18 and a bottom 20. A flexible diaphragm 14 is positioned within housing 12. A diaphragm holder 16 is provided inside housing 12 for holding a sealing edge 56 of flexible diaphragm 14 in fluid sealing engagement with diaphragm holder 16. The housing 12 and flexible diaphragm 14 define an inlet fluid reservoir 62 and an outlet fluid reservoir 64. The diaphragm holder 16 defines a by-pass fluid channel 54 from inlet fluid reservoir 62, around diaphragm 14, to outlet fluid reservoir 64. The flexible diaphragm 14 being flexible to alternatively move into inlet fluid reservoir 62 and outlet fluid reservoir 64 depending on a fluid pressure differential between inlet fluid reservoir 62 and outlet fluid reservoir 64. A fluid inlet 24 is connected to housing top 18 to provide an inlet fluid passage 27 from an I.V. bag containing medical fluid to inlet fluid reservoir 62. A fluid outlet 34 is connected to housing bottom 20 to provide an outlet fluid passage 44 from outlet fluid reservoir 64 to the patient. At least one rib 48 connected to bottom 20 is provided to prevent movement of flexible diaphragm 14 into outlet fluid reservoir 64 when flexible diaphragm 14 moves into outlet fluid reservoir 64 a predetermined distance.

摘要翻译： 本发明提供了一种静脉内流体流量调节器10，用于控制I.V. 向患者施用医用流体。 流体流量调节器10提供具有顶部18和底部20的壳体12.柔性隔膜14定位在壳体12内。隔膜保持器16设置在壳体12内部，用于将柔性隔膜14的密封边缘56保持在流体密封 与隔膜保持器16的接合。壳体12和柔性隔膜14限定入口流体储存器62和出口流体储存器64.隔膜支架16限定来自入口流体储存器62的周边流体通道54，围绕隔膜14到出口 流体储存器64.根据进口流体储存器62和出口流体储存器64之间的流体压力差，柔性隔膜14可挠曲地交替地进入入口流体储存器62和出口流体储存器64.流体入口24连接到壳体顶部18 以从IV提供入口流体通道27 流体出口34连接到壳体底部20，以从出口流体储存器64向患者提供出口流体通道44。 连接到底部20的至少一个肋48被设置成当柔性隔膜14移动到出口流体储存器64中预定距离时，以防止柔性隔膜14移动到出口流体储存器64中。