Method of determining the efficiency of a dialyzer of a...

Details Method of determining the efficiency of a dialyzer of a... Method of determining the efficiency of a dialyzer of a...

2005-03-01

2005-03-01

Bianco, Patricia (Department: 3762)

Surgery

Blood drawn and replaced or treated and returned to body

Constituent removed from blood and remainder returned to body

C210S645000, C210S646000, C210S085000, C210S321710, C210S739000, C210S257200, C600S366000

Reexamination Certificate

active

06860866

ABSTRACT:
A method and a device for determining the efficiency of a dialyzer of a dialysis machine during a dialysis treatment wherein the dialyzer is divided by a semipermeable membrane into a blood chamber and a dialysis fluid chamber and wherein the blood flows at a predetermined flow rate through the blood chamber and dialysis fluid flows at a predetermined flow rate through the dialysis fluid chamber. In use, the dialysance or clearance for a predetermined dialysis fluid flow rate and/or blood flow rate is measured, and then the dialysance or clearance for any dialysis fluid flow rate and blood flow rate is calculated.

REFERENCES:
patent: 5744031 (1998-04-01), Bene
patent: 6187199 (2001-02-01), Goldau
patent: 6258027 (2001-07-01), Sternby
patent: 39 38 662 (1991-07-01), None
patent: 42 39 937 (1995-08-01), None
patent: 197 39 100 (1999-04-01), None
Hans Eduard Franz, “Blutreinigungsverfahren (Blood Purification Method)”, Georg Thieme Verlag Suttgart, New York 1990, pp. 11-13.
Jan Erik Sigdell et al., “Clearance of a Dialyzer Under Varying Operating Conditions”, Artificial Organs, 1986, pp. 219-225.

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