Haemofiltration with filtrate flow control by adjustable venting
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United States of America Patent
Stats
-
Jan 6, 1981
Grant Date -
N/A
app pub date -
Dec 4, 1978
filing date -
Dec 9, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A haemofiltration apparatus includes a combined blood pump (1a) and filtrate pump (1b). The pressure on the inlet side of the filtrate pump may be adjusted by a cone valve (14) mounted on a diaphragm (12) which opens to admit air when the inlet pressure falls below a predetermined value which is set by a valve spring (16) provided with an adjustment screw (15). The other side of the diaphragm may be connected to the atmosphere or to an air trap (6) in the blood pump circuit.
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