Fluid pumping apparatus for use with a removable fluid pumping cartridge
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United States of America Patent
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Aug 25, 2015
Issued Date -
N/A
app pub date -
Mar 11, 2014
filing date -
Jul 20, 1999
priority date (Note) -
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Abstract
The present invention involves, in some embodiments apparatus, such as dialysis apparatus, and methods for pumping fluid. Certain embodiments comprise a housing enclosing a pump drive assembly for actuating at least one pump on a removable fluid pumping cassette. The housing may comprise a door connected to the housing for enclosing an installed cassette in the housing upon closure of the door. The pump drive assembly may comprise a mating block configured for operative association with an installed cassette and to may be configured to permit a sealing engagement with an installed cassette upon closure of the door. To facilitate sealing, certain embodiments of the door include a movable compression plate configured to exert a compressive force on an installed cassette against the mating block when the door is in a closed position.
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