Patent ID: 8425470

Claim:
A cassette for mounting on a peristaltic pump housing, the cassette comprising: a cassette body having at least one connector, the at least one connector including an occluder; a flexible pump tube attached to the at least one connector; and an angled engagement surface disposed on the cassette body at least partially disposed on a projection extending from the body and being disposed at an angle relative to the body, the angled engagement surface engaging the peristaltic pump housing such that the cassette body is removably mountable on the peristaltic pump housing; wherein the angled engagement surface interacts with a complimentary surface of the peristaltic pump housing such that under tension from partial engagement of the complimentary surface, the cassette body is biased into a mounted position; wherein the engagement surface comprises a first sloped section and a second sloped section; wherein the second sloped section is disposed at substantially the same angle as the first sloped section and is disposed further away from the body than the first sloped section; wherein the occluder is disposed in a portion of the flexible pump tube to selectively prevent flow therethrough.