Autotransfuser
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United States of America Patent
Stats
-
Feb 6, 1990
Grant Date -
N/A
app pub date -
Dec 1, 1987
filing date -
Jun 24, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An autotransfuser device for removing blood from a patient and returning the blood to the patient includes a collection bag suspended in an air jacket. A valve is provided in the device to selectively apply a negative pressure to the air jacket and the interior of the collection bag to draw the blood from the patient. The valve is subsequently rotated to apply a positive pressure to the air jacket and the outside of the bag to compress the bag and cause the blood to be returned to the patient. A plurality of filter members are provided in a collection chamber to remove blood clots and undesirable solids. A source of an anticoagulant may be provided in the collection chamber and in the collection bag.
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