Surgery – Blood drawn and replaced or treated and returned to body – Constituent removed from blood and remainder returned to body
Reexamination Certificate
2005-02-15
2005-02-15
Bianco, Patricia (Department: 3762)
Surgery
Blood drawn and replaced or treated and returned to body
Constituent removed from blood and remainder returned to body
C604S006010, C604S006160, C422S044000
Reexamination Certificate
active
06855120
ABSTRACT:
An apheresis system is disclosed which may include a separation chamber; a suspension flow path which communicates at one end with the separation chamber and includes a connector at the other end for connecting to a source of cellular suspension; an anticoagulant flow path which communicates at one end with the suspension flow path and includes a connector at the other end for connecting to an anticoagulant source; and a return flow path which communicates at one end with the separation chamber and communicates at the other end with a connector for connection directly to the suspension source or to the suspension flow path for returning one or more suspension components to the source. The anticoagulant flow path includes a flow restriction, such as an internal flow restriction, which limits the free flow of anticoagulants into the suspension flow path while preferably not completely stopping the flow of anticoagulant. The restriction may take various forms, but the preferred construction comprises a tubing segment of reduced inside diameter, providing resistance to the free flow of anticoagulant in the event of operator error or mechanical failure.
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Baxter Healthcare Corp., Fenwal Division, “Product Update,” Closed system apheresis kit does double duty, 2 pages.
Baxter Healthcare Corp., Fenwal Division, “Product Update,” Closed system single access apheresis kit, 2 pages.
Baxter Healthcare Corp., Fenwal Division, “Product Update,” Dual needle return line adds value to apheresis kit, 2 pages.
Declaration of Daniel J. Grimm, 3 pages.
Baxter International Inc.
Bianco Patricia
McFarron Gary W.
Price Bradford R. L.
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