Liquid purification or separation – Casing divided by membrane into sections having inlet – Membrane movement during purification
Reexamination Certificate
2007-02-27
2007-02-27
Menon, Krishnan S. (Department: 1723)
Liquid purification or separation
Casing divided by membrane into sections having inlet
Membrane movement during purification
C210S321670, C210S321780, C210S360100, C210S645000, C210S646000, C210S650000
Reexamination Certificate
active
11043370
ABSTRACT:
Systems and methods convey the blood through a gap defined between an inner surface that is located about an axis and an outer surface that is concentric with the inner surface. At least one of the inner and outer surfaces carries a membrane that consists essentially of either a hemofiltration membrane or a hemodialysis membrane. The systems and methods cause relative movement between the inner and outer surfaces about the axis at a selected surface velocity, taking into account the size of the gap. The relative movement of the two surfaces creates movement of the blood within the gap, which creates vortical flow conditions that induce transport of cellular blood components from the membrane while plasma water and waste material are transported to the membrane for transport across the membrane. Shear-enhanced transport of waste materials and blood plasma water results.
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Zydney
Kunas Gretchen
Moriarty Julie
Vishnoi Rohit
Baxter International Inc.
McFarron Gary W.
Menon Krishnan S.
Price Bradford R. L.
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