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1. 发明授权

US4119113A Double-action proportioning pump 失效
标题翻译：双作用配比泵
公开(公告)号：US4119113A
公开(公告)日：1978-10-10
申请号：US547625
申请日：1975-02-06
申请人： Stephen Mason Meginniss, III
发明人： Stephen Mason Meginniss, III
IPC分类号： F04B9/08 , A61M1/16 , B01F15/04 , F01L25/08 , F04B9/111 , F04B9/113 , F04B13/02 , F04B53/16 , A61M16/00 , G05D11/02
CPC分类号： A61M1/1656 , B01F15/047 , F01L25/08 , F04B53/162 , F04B53/164 , F04B9/113 , Y10T137/2516
摘要： In a blood dialysis system a proportioning pump accurately mixes precise quantities of water and concentrate. A double-acting piston assembly is disposed in a stepped cylinder which has proximity sensing switches at both ends thereof. These are operated as the piston assembly reaches the end of its stroke in each direction. The switches alternate a bistable solenoid valve system which directs pressurized water to opposite sides of a large central piston, thus causing the piston assembly to reciprocate. Small pistons, attached on opposite sides of the large piston, move in small pump chambers, with check valves. The small pistons pump concentrate in a precise ratio to the volume of water driving the large piston.
摘要翻译：在血液透析系统中，配比泵精确混合精确量的水和浓缩物。双作用活塞组件设置在阶梯式气缸中，在其两端具有接近感应开关。当活塞组件在每个方向上到达其行程末端时，这些操作都是可操作的。开关交替双稳电磁阀系统，其将加压水引导到大的中心活塞的相对侧，从而使活塞组件往复运动。安装在大活塞两侧的小活塞在小型泵室中移动，带止回阀。小型活塞泵精确地与驱动大活塞的水的体积相比较。

2. 发明授权

US4107039A Dialysate preparation system 失效
标题翻译：透析液制备系统
公开(公告)号：US4107039A
公开(公告)日：1978-08-15
申请号：US674621
申请日：1976-04-07
申请人： Edward R. Lindsay, Jr. , Stephen Mason Meginniss, III
发明人： Edward R. Lindsay, Jr. , Stephen Mason Meginniss, III
IPC分类号： A61M1/16 , G05D16/10 , B01D31/00
CPC分类号： G05D16/10 , A61M1/1656 , Y10T137/2516 , Y10T137/7831
摘要： A system continuously prepares dialysate by mixing water under pressure with concentrate to form dialysate under pressure. This dialysate is supplied on demand to a single patient station or to a plurality of patient stations. The pressure at which this dialysate is supplied to multiple patient stations is controlled so changes in the flow to one station will not change the pressure at which dialysate is supplied to other stations. A pressure regulator senses the pressure of the dialysate supplied to the patient stations and controls a regulator valve connected between the source of water under pressure and a proportioning pump which mixes this water with concentrate. The regulator includes a constant force spring assembly which provides a constant bias against the pressure in a sensing chamber over a range of linear movement of the pressure sensing element.
摘要翻译：系统通过在压力下混合水与浓缩液连续制备透析液，在压力下形成透析液。该透析液根据需要提供给单个患者站或多个患者站。将这种透析液供给多个病人站的压力控制在一个站的流量变化不会改变透析液供应给其他站的压力。压力调节器感测提供给患者站的透析液的压力，并控制连接在压力下的水源之间的调节阀和将该水与浓缩物混合的配比泵。调节器包括恒力弹簧组件，其在压力感测元件的线性运动的范围内提供抵抗感测室中的压力的恒定偏压。

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