Peristaltic pump

A peristaltic pump, comprising:

• a pump housing;
• a drive disposed at least partially within the pump housing;
• a rotating member operably coupled to the drive, the drive configured to rotate the rotating member about an axis;
• a plurality of rollers coupled to the rotating member in a circular configuration, the plurality of rollers configured to orbit about the axis of the rotating member;
• a guide member coupled to the pump housing, the guide member defining a channel configured to guide a peristaltic tube around the rotating member so that the peristaltic tube is in proximity to the plurality of rollers;
• a retaining shoe pivotally coupled to the pump housing, the retaining shoe configured to press the peristaltic tube against the plurality of rollers, the retaining shoe comprising a plurality of surface irregularities, the plurality of surface irregularities configured to restrict movement of the peristaltic tube;
• and
• a keeper coupled to the pump housing, the keeper configured to brace the retaining shoe against the peristaltic tube, wherein the keeper comprises an adjustment mechanism configured to brace the retaining shoe against the peristaltic tube by exerting a force on the retaining shoe opposite a pivot of the retaining shoe and in a direction generally toward the axis of the rotating member.