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21. 发明授权

US5281111A Cartridge for drug infusion pump 失效
标题翻译：用于药液输液泵的药筒
公开(公告)号：US5281111A
公开(公告)日：1994-01-25
申请号：US996326
申请日：1992-12-23
申请人： Gregg E. Plambeck , Thomas A. Kramer
发明人： Gregg E. Plambeck , Thomas A. Kramer
IPC分类号： A61M5/142 , F04B43/12 , F04B43/08
CPC分类号： A61M5/14232 , F04B43/123 , A61M2205/12
摘要： An improved segmented peristaltic cartridge comprising a housing and a cover for assembly in snap-fit relation, said housing and cover defining a pumping chamber having an open segment therein wherein the pumping chamber holds a rotor, a rotor sleeve and a section of flexible tubing looped around the rotor and connected to respective inlet and outlet ports of the cartridge. Mounted on an exterior face of the housing is a safety shield which protects the tubing exposed in the open segment of the cartridge when the cartridge is inserted into a motor pump frame. The cartridge includes free standing walls on the cartridge housing engaging registration surfaces on the cartridge cover, an improved dowel pin structure and peripheral ribs on the rear cover and engaging a rear face of the rotor to minimize friction therebetween.
摘要翻译：一种改进的分段蠕动筒，其包括壳体和用于以卡扣配合关系组装的盖，所述壳体和盖限定了其中具有开口段的泵送室，其中泵送室保持转子，转子套筒和一段柔性管道环形围绕转子并连接到盒的相应入口和出口。安装在外壳的外表面上的是安全屏蔽，当将墨盒插入电机泵框架时，该屏蔽件可保护暴露在墨盒打开段中的管道。盒式磁带包括在盒壳体上的自由站立壁，其接合盒盖上的对准表面，改进的定位销结构和后盖上的周边肋，并且与转子的后表面接合以最小化它们之间的摩擦。

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