Peristaltic pump tube loading assembly.

摘要

The peristaltic pump assembly comprises a loop of tubing and a pump housing having a curved surface. A pump rotor extends along and is rotatable about a longitudinal axis for progressively and intermittently compressing the loop of tubing against the curved surface. The pump rotor has a first portion extending beyond the housing along the longitudinal axis and a second portion extending along the longitudinal axis adjacent to the curved surface of the housing. A groove is formed in the first rotor portion and a flange is provided between the groove and second rotor portion. The groove encircles the rotor about the first rotor portion for retaining the loop of tubing opposite the curved surface. A notch in the flange extends between the groove and the second rotor portion which, as the rotor is rotated during loading, progressively captures the tubing to urge it downward between the curved surface and the second portion of the rotor.