Electrochemical sensors
US5658444A · kind A · utility
186Cited by
6References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Mar 18, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/975
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Erythrocyte exclusion membranes suited for test strips of electrochemical sensors have a porous matrix and a mobile erythrocyte aggregating agent. The membranes typically comprise a water-insoluble hydrophobic polymer incorporating a hydrophilic polymer and with the erythrocyte aggregating agent. Such membranes can have a pore size which is several times larger than the diameter of erythrocytes, and allow rapid passage of plasma by holding back the erythrocytes as rouleaux at the surface of the membrane. The membranes are preferably made by forming in situ on a test strip using spray casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.