Patent ID: 8777590

Claim:
A medical pump for use with a cassette, comprising: a chassis having a fixed seat thereon; a carriage connected to the chassis and having an opening therein adapted to receive a cassette, the opening forming a footing which restricts movement of the cassette within the carriage, the carriage being movable inwardly with respect to the chassis from an open position wherein the carriage is spaced from the fixed seat to a closed position to engage the cassette to the fixed seat; and an actuator assembly connected to the carriage having a cam element having a cam surface that is engaged by a cam follower such that as the cam follower moves along the cam surface the carriage moves between the closed position and the opened position; wherein the cam follower is rotatably connected to a handle via a lever bearing; wherein the lever bearing has a radial opening and a spoke and the handle has an engagement member disposed through the radial opening wherein in a first position the engagement member does not contact the spoke and in a second position when the handle is rotated the engagement member engages the spoke to rotate the lever bearing and cam follower.