专利名称：Roller pump
发明人：Erwin Knott,Andreas Hahn申请号：US08/289009申请日：19940811公开号：US05470211A公开日：19951128
摘要：A roller pump for medical technology, in particular for pumping blood inextracorporeal circulations. The roller pump has a stator (1) with a cylindrical hollowspace (2), the wall structure of which is formed as a support wall (3) for a pump tube (5)led along this wall about the central longitudinal axis of the hollow space. A pump rotoris rotatably arranged about its central longitudinal axis (4) in the pump stator, the rotorhaving rollers (8) which are rotatably supported on roller supports (7) and roll along thetube upon rotation of the rotor and compress the tube. The support wall (3) of the pumpstator has an opening (6) with an inlet region (10) and an outlet region (12) for the tube(5) and, in these regions, this support wall deviates from the circular path of motion ofthe pump rollers (8) at a differing curvature along the direction as this path of motion.The support wall (3) has a continuously increasing radius of curvature in the inlet region(10) in the direction of motion of the pump rollers (8) and a continuously decreasingradius of curvature in the outlet region (12) in the direction of motion of the rollers.
申请人：STOECKERT INSTRUMENTE GMBH
代理机构：Scully, Scott, Murphy & Presser
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