The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 10, 1998

Filed:

Nov. 09, 1995
Applicant:
Inventor:

Hans-Dietrich Polaschegg, Oberursel, DE;

Assignee:

Fresenius AG, Bad Homburg, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210636 ; 134 2211 ; 1341 / ; 210138 ; 21032169 ; 210646 ; 210739 ; 210929 ; 422 681 ; 604-4 ;
Abstract

An apparatus and a method are provided for collecting samples of used dialysate during hemodialysis treatments. A fluid sample is branched off from the main flow of used dialysate into a sample receiving container. The branching off of the sample flow, i.e. withdrawal of the fluid sample, is either time- or volume-controlled so that during the course of a dialysis treatment a predetermined number of fluid samples are withdrawn, whereby the total sample volume has a prescribed ratio relative to the total volume of used dialysate. The recirculation and sample withdrawal conduit is selectively attachable to the sample receiving container for sample collection, or to the inlet of the hemodialysis device to form a recirculation loop for a disinfection cycle. A disinfectant cartridge can be interposed between the recirculation conduit and the hemodialysis device inlet.


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