An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the roller assembly includes at least one roller. A tube...http://www.google.de/patents/US6626867?utm_source=gb-gplus-sharePatent US6626867 - Implantable drug infusion device with peristaltic pump using tube guides
