Patent ID: 6231320
Filing Date: 2001-05-15
Classification: A61M,G01N

Abstract:
Apparatus for engaging a pumping cassette at a predefined position within a pump chassis that is used to deliver fluids to a patient, comprising:(a) a pivotable member disposed at a side of a cavity within the pump chassis, said cavity being sized to receive a pumping cassette, said pivotable member being pivotally mounted to the pump chassis so as to pivot away from and towards the cavity and including a surface configuration that engages a portion of a pumping cassette in the predefined position within the cavity; and(b) a spring coupled to said pivotable member, said spring applying a biasing force tending to pivot said pivotable member towards the cavity, so that as a pumping cassette is forced into the cavity, said pivotable member is pivoted away from the cavity, said biasing force causing said surface configuration of the pivotable member to engage the pumping cassette after it has been forced into the cavity, retaining the pumping cassette at the predefined position.