Peristaltic pump arrangement and pump rollers

摘要

A peristaltic pump for use with tubing. The pump includes a raceway and a rotatably mounted rotor that form a passageway therebetween for the tubing. A plurality of roller assemblies is pivotably and eccentrically mounted to the rotor. Each roller assembly has a length, and includes a roller having an outer surface disposed to selectively roll along said tubing when received in the passageway. At least one compliance mechanism is coupled to and contained substantially within the length of each roller assembly. The compliance mechanism has first and second ends coupled to the rotor and the roller assembly, respectively. The compliance mechanism is adapted and disposed to bias the associated roller assembly outward relative to the rotor, such that a force applied to the roller assembly pivoting the roller assembly inward against the force of the compliance mechanism.

主权项

1. A peristaltic pump for use with tubing, the pump comprising:
a raceway; a rotatably mounted rotor; a passageway formed between the raceway and the rotor, the passageway being adapted to receive said tubing; a plurality of roller assemblies pivotably and eccentrically mounted to the rotor, each roller assembly having a length, and including a roller having an outer surface disposed to selectively roll along said tubing when received in the passageway; and at least one compliance mechanism coupled to each roller assembly, the compliance mechanism having first and second ends coupled to the rotor and the roller assembly, respectively, the compliance mechanism being adapted and disposed to bias the associated roller assembly outward relative to the rotor; wherein substantially the majority of the compliance mechanism is contained within the length of the roller assembly and within inside of the roller.