Patent · US Expired

Biosensor

US5892144A · kind A · utility

26Cited by

6References

22Claims

0Family size

Assignee

Behringwerke Aktiengesellschaft · DE

Inventors

Paul Meller · Usingen, DE
Norbert Madry · Marburg, DE
Carsten Schelp
Andrzej Grzegorzewski · Haltern am See, DE

Key dates

Filing date	Apr 8, 1996
Grant date	Apr 6, 1999
Priority date	—
Expiry date	Apr 8, 2016

Classification

Technology area (CPC G)Physics
CPC primaryG01N2291/0257
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A biosensor (10) for measuring changes in viscosity, density and/or mass in a fluid to be examined, for example a blood coagulation sensor or immunoassay system. According to the invention, the reagents necessary for the test are contained in a support (13) which is put onto the measurement surface (18) of a piezoelectric element (8). As a blood coagulation sensor, the measurement surface (18) may according to the invention itself have a coagulation activator action or else be coated with coagulation activators.

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