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1. 发明申请

WO1997037703A1 VOLUMETRIC INFUSION PUMP 审中-公开
标题翻译：体积输液泵
公开(公告)号：WO1997037703A1
公开(公告)日：1997-10-16
申请号：PCT/US1997004708
申请日：1997-03-21
申请人： BAXTER INTERNATIONAL INC.
发明人： BAXTER INTERNATIONAL INC. , ALLEN, Tim , BRUNDLE, Alan , DANDBY, Hal , HARRIS, Mark , HUTCHINS, Geoff , LaBEDZ, Ralph, H. , LYNN, Kenneth, M. , McGRAGHAN, Thomas , MONAGHAM, Martin , MORASKI, Kevin, J. , MYREN, Svante, Eric , PAGE, Stuart , PLUMB, Jon , STEWART, Janice , TURNER, John, M.
IPC分类号： A61M05/142
CPC分类号： F04B53/16 , A61M5/142 , A61M5/16854 , A61M5/365 , A61M39/281 , A61M2205/14 , F04B43/082 , F04B43/1223 , Y10S128/12 , Y10T29/49236
摘要： A medical infusion pump is disclosed which provides for greatly improved accuracy in the delivery of medicaments to a patient. Among the various features included in the instant invention is a pumping body which serves to deform and reform a tube so as to maintain the initial cross section thereof and thereby preserve the output accuracy of the pump. Also disclosed with regard to the pumping body is a wholly mechanical synchronization of the pumping body and valves associated therewith and coactive with the aforementioned synchronization a mechanical linearization of output of the pumping body per each pumping cycle. Additionally, several features which serve to enhance the utility of the instant invention are also included therein among which is an associated assembly operative to automatically load or disload a tube or IV set into or out of the pumping body. Associated with the assembly operative to automatically load or disload a tube and disclosed herein is an assembly operative to selectively open or close a slide clamp associated with the tube in such a way as to ensure that the tube is occluded such that in combination with the valves associated with the pumping body, a condition of free-flow of medicament is never realized. Additionally disclosed are sensor housings adapted to measure various quantities associated with fluid flowing through the tube wherein the housings are with associated components adapted to achieve a substantially normal orientation with respect to the sidewall of the tube and in the achieving of such normal orientation, expressing an essentially zero elastic stress gradient across the tube.
摘要翻译：公开了一种医疗输液泵，其提供了向患者输送药物的大大提高的准确度。在本发明中包括的各种特征之中的是泵体，其用于使管变形和重新变形以保持其初始横截面，从而保持泵的输出精度。关于泵体还公开了泵体和与其相关联的阀的完全机械同步，并且与上述同步共同作用，每个泵送循环的泵送体的输出的机械线性化。此外，还包括用于增强本发明的实用性的几个特征，其中相关联的组件可操作以自动加载或卸载进入或离开泵体的管或IV。与可操作以自动加载或卸载管并且在此公开的组件相关联的组件是可操作以选择性地打开或关闭与管相关联的滑动夹具的组件，以确保管被封闭，使得与阀组合与泵送体相关联，从未实现药物自由流动的状态。另外公开的是适于测量与流过管的流体相关联的各种量的传感器壳体，其中壳体具有适于实现相对于管的侧壁的基本正常取向的相关部件，以及实现这种正常取向，在管上基本上为零弹性应力梯度。

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