Blood aspirator
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United States of America Patent
Stats
-
Nov 16, 1999
Grant Date -
N/A
app pub date -
Sep 16, 1996
filing date -
Sep 16, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blood aspirator is composed of a suction circuit adapted to receive a flow of blood, a sensor associated with the suction circuit for generating a signal relating to the presence of bubbles in aspirated blood in the suction circuit, a variable speed pump coupled to the suction circuit and adapted to pump blood through the suction circuit, and a controller for controlling the speed of the pump. The controller causes the pump to adjust the blood flow through the suction circuit so that a predetermined, nonzero concentration of bubbles flows through the suction circuit.
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