Surgery – Blood drawn and replaced or treated and returned to body – Constituent removed from blood and remainder returned to body
Reexamination Certificate
2009-01-13
2011-12-06
Deak, Leslie (Department: 3761)
Surgery
Blood drawn and replaced or treated and returned to body
Constituent removed from blood and remainder returned to body
C604S006090, C604S006110, C604S004010, C604S005010, C604S006010
Reexamination Certificate
active
08070706
ABSTRACT:
Method for in-vivo plasmapheresis utilizing a plurality of elongated hollow microporous filter fibers periodically interrupt diffusion of blood plasma from a patient, and, for a selected time, directing backflush fluid into the fibers at a pressure and interval sufficient to cleanse the fiber pores, after which plasma diffusion is resumed. The backflush fluid, preferably a normal saline solution, may contain an anticoagulant such as heparin, citrate or NO donor in suitable concentration for systemic anti-coagulation or for treating the fiber for thromboresistance.
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Cooper Tommy Gene
Gorsuch Reynolds G.
Handley, Jr. Harold H.
Peters Harold W.
Deak Leslie
Knobbe Martens Olson & Bear LLP
Transvivo Inc.
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