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.
Patent No.:
Date of Patent:
Mar. 20, 1990
Filed:
Sep. 19, 1988
Boehringer Mannheim GmbH, Mannheim, DE;
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.