Process for determining coagulation parameter

US4910150A · kind A · utility

Assignee

• Boehringer Mannheim GmbH · DE

Inventors

• Jurgen Doeding · Bensheim, DE
• Hans Wielinger · Weinheim, DE
• Rolf Lerch · Ilvesheim, DE

Key dates

• Filing date: Sep 19, 1988
• Grant date: Mar 20, 1990
• Expiry date: Sep 19, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/255
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present invention provides a test carrier for the determination of coagulation parameters, wherein it includes a test layer which contains glass fibres which are coated with polyvinyl alcohol or polyvinyl alcohol/vinyl acetate. The present invention also provides a process for the production of a glass fibre layer, wherein glass fibres are slurried in an excess of water with the addition of polyvinyl alcohol and a layer is formed according to a process conventional for the production of paper and dried at an elevated temperature. Furthermore, the present invention provides a process for the determination of coagulation parameters of blood, wherein it includes a process step in which blood is passed through a glass fibre layer which contains glass fibres which have been coated with polyvinyl alcohol or polyvinyl alcohol/vinyl acetate.