Dialysis treatment devices for removing urea

Details Dialysis treatment devices for removing urea Dialysis treatment devices for removing urea

2009-06-11

2011-12-20

Menon, Krishnan S (Department: 1777)

Liquid purification or separation

Casing divided by membrane into sections having inlet

Dialyzer with dialysate proportioning means

C210S321650, C210S650000, C210S651000, C210S652000, C210S260000, C210S261000

Reexamination Certificate

active

08080161

ABSTRACT:
Dialysis treatment devices and methods for removing urea from dialysis waste streams are provided. In a general embodiment, the present disclosure provides a dialysis treatment device including: 1) a first filter having a filtration membrane, 2) a urea removal unit having urease and in fluid communication with the first filter, and 3) a second filter having an ion rejection membrane and in fluid communication with the first filter and the urea removal unit.

REFERENCES:
patent: 2002/0112609 (2002-08-01), Wong
patent: 2004/0019312 (2004-01-01), Childers et al.
patent: 2005/0274658 (2005-12-01), Rosenbaum et al.
patent: 2007/0179431 (2007-08-01), Roberts et al.
patent: 2008/0051696 (2008-02-01), Curtin et al.
patent: 2009/0114595 (2009-05-01), Wallenas et al.
patent: 2009/0127193 (2009-05-01), Updyke et al.
International Search Report and Written Opinion for PCT/US2010/033482 dated Aug. 27, 2010.

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