Surgery – Blood drawn and replaced or treated and returned to body
Patent
1997-09-29
1999-08-10
Weiss, John G.
Surgery
Blood drawn and replaced or treated and returned to body
422 44, 422 45, 604 5, 604 8, 210472, A61M 3700
Patent
active
059350938
ABSTRACT:
A softshell blood reservoir incorporates an integral flexible cardiotomy section in which a filter/defoamer unit is supported in a semirigid cage. The reservoir also incorporates a storage section and a mixing section. The three sections can selectively communicate with each other. Cardiotomy blood is supplied to the cardiotomy section, and venous blood is supplied to the mixing section. The storage section holds varying amounts of cardiotomy blood to maintain a constant mixed blood output from the mixing section. Only the filter/defoamer unit and the mixing section need be primed.
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Elgas Roger J.
Gremel Robert G.
Van Driel Michael R.
Huseman Cheryl L.
Medtronic Inc.
Weiss John G.
Weissenberger Harry G.
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