Patent ID: 9593679
Date: 2017-03-14
CPC Classifications: A61M,F04B,G01M,G05D

Claim:
1. An apparatus for pumping fluid comprising: a housing enclosing a pump drive assembly for actuating at least one pump on a removable fluid pumping cassette, when the pumping cassette is installed in the housing; a door connected to the housing for enclosing the installed cassette in the housing upon closure of the door; the pump drive assembly comprising a mating block configured for operative association with the installed cassette; the mating block configured to permit a sealing engagement with the installed cassette upon closure of the door; wherein the door includes a movable compression plate configured to move toward the cassette after the door has been closed and exert a compressive force on the installed cassette against the mating block when the door is in a closed position.