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1. 发明授权

US5006050A High accuracy disposable cassette infusion pump 失效
标题翻译：高精度一次性盒式输液泵
公开(公告)号：US5006050A
公开(公告)日：1991-04-09
申请号：US283107
申请日：1988-12-09
申请人： James E. Cooke , Philip Barkan , Gregory Kovacs
发明人： James E. Cooke , Philip Barkan , Gregory Kovacs
IPC分类号： A61M5/142 , F04B43/04 , F04B49/00
CPC分类号： F04B49/005 , A61M5/14224 , F04B43/04 , A61M2205/6072
摘要： An infusion pump for delivery of drugs to a patient includes a unit in which the pump mechanism is situated and a cassette through which the drugs to be delivered to the patient are pumped. The cassette includes a path for the fluid to flow from a drug vial to an outlet port. Disposed along the path are recesses for an inlet valve, a pressurization region, and an outlet valve. The cassette is sealed by an elastomeric layer to maintain the drugs to be delivered in a contaminant-free condition. The pump includes an inlet valve which has a contour matching the recess of the inlet port, and an outlet valve matching the recess of the outlet port. By biasing the inlet and outlet valves against the recesses, a pumping chamber is created. A piston in the unit pressurizes the pumping chamber to open the outlet valve and permit fluid to escape. By appropriate timing of the operation of the inlet valve and the piston, a continuous stream of fluid is delivered by the pump to the patient.
摘要翻译：用于将药物递送到患者的输液泵包括其中泵机构所在的单元和用于泵送待递送给患者的药物的盒。所述盒包括用于流体从药瓶流向出口的路径。沿着路径布置的是用于入口阀，加压区域和出口阀的凹槽。该盒由弹性体层密封，以使药物在无污染的条件下被输送。泵包括入口阀，其具有与入口端口的凹部匹配的轮廓，以及与出口的凹部匹配的出口阀。通过将入口和出口阀偏置抵靠凹槽，产生泵送室。该单元中的活塞对泵送室加压以打开出口阀并允许流体逸出。通过入口阀和活塞的适当操作时间，连续的流体流被泵输送到病人身上。

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