Patent ID: 8308457

Claim:
A medical apparatus, comprising: an infusion pump, comprising: a pump body; a peristaltic mechanism, which protrudes from the pump body and is configured to exert a force on a flexible infusion tube so as to propel a fluid through the tube; a hinge receptacle which is fixed to the pump body and defines a hinge axis; and a catch receptacle fixed to the pump body; and a mechanical interface unit, which is configured to hold a portion of the tube, and which comprises: a hinge insert, which is configured to engage the hinge receptacle; a catch insert, which is configured to lock onto the catch receptacle upon rotation of the mechanical interface unit about the hinge axis while the hinge insert engages the hinge receptacle, so as to bring the tube into engagement with the peristaltic mechanism; a rim surrounding the peristaltic mechanism; and a door, which closes over the rim so as to enclose the peristaltic mechanism and to prevent unintentional detachment of the mechanical interface unit from the pump body.