Patent · US Expired

Method for affinity viscosimetry and viscosimetric sensor

US6938463B2 · kind B2 · utility

4Cited by

8References

20Claims

0Family size

Assignee

Disetronic Licensing AG · CH

Inventors

Rudolf Ehwald · Berlin, DE
Ulrich Haueter · Worb, CH
Uwe Beyer · Bern, CH

Key dates

Filing date	Aug 30, 2002
Grant date	Sep 6, 2005
Priority date	—
Expiry date	Dec 11, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/144444
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and apparatus for determining solute levels by affinity viscosimetry involving a sensitive fluid, in which the sensitive fluid flows continuously through a first hydraulic resistor in the flow direction of the dialysis chamber, and the sensitive fluid modified by dialysis simultaneously flows through another resistor, wherein the pressure differences between the resistors is determined on-line with the aid of pressure sensors and converted into a relative value which is approximately proportional to the concentration of solute.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.