Patent ID: 7866960

Claim:
A peristaltic pump system, comprising: a base; a sidewall structure mounted on the base, and forming a containing space therein; a rotor having a rotational axis and a center in the containing space, and further having plural protrusions formed as a single piece with the center, wherein the sidewall structure and the protrusions form a peristaltic space in the containing space; and a hose disposed in the peristaltic space formed between the protrusions and the sidewall structure, wherein the peristaltic space has a top and a bottom, the top and the bottom being defined on a same plane in a direction parallel to the rotational axis of the rotor, the top is displaced from the base, and the bottom is located closer to the base than the top, and a first distance between the sidewall structure and the rotor at the bottom of the peristaltic space is greater than a second distance between the sidewall structure and the rotor at the top of the peristaltic space.