Patent ID: 8257066

Claim:
A tubing misload detection mechanism for detecting misloading of an infusion tube in an infusion pump having a pump body, comprising: a base plate fixedly disposed on the pump body, a first shaft provided on the pump body, a door unit hingedly supported by the first shaft, the door unit includes a second shaft, a misload-detection inner door hingedly supported by the second shaft, the misload-detection door is sandwiched between the door unit and the base plate when the door unit is in a closed position with the pump body, and an interlocking part connected to door unit to engage in a locking position with the base plate when the infusion tube is properly loaded in a predetermined position between the misload-detection inner door and the base plate in the infusion pump, wherein the interlocking part is adapted to be unengageable with the base plate, when the infusion tube is improperly loaded and thus pushes directly against the misload-detection inner door and the door unit to prevent a complete closure of the door unit with the pump body.