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:
Jul. 09, 2019
Filed:
Apr. 29, 2014
Sartorius Stedim Biotech Gmbh, Göttingen, DE;
Dieter Melzner, Göttingen, DE;
Denise Van Rossum, Adelebsen, DE;
Abstract
The present invention relates to a lateral flow membrane arrangement (), comprising a microporous membrane layer () and a liquid-impermeable support layer (), for lateral flow of a liquid through the microporous membrane layer (), wherein the microporous membrane layer () is supported on the liquid-impermeable support layer () and has at least one detection zone () and at least one non-detection zone, wherein binding agents are immobilized in the at least one detection zone (), the liquid-impermeable support layer () has at least one zone having a large thickness and at least one zone having a small thickness, the microporous membrane layer () is supported on the liquid-impermeable support layer () such that said at least one detection zone is provided above said at least one zone of the support layer having a large thickness and said at least one non-detection zone is provided above said at least one zone of the support layer having a small thickness, the zones are oriented in a direction orthogonally to the lateral flow direction (a) of said liquid, the detection zone () has a thickness () of 100 to 150 μm over the entire width of the membrane, the non-detection zone has a thickness () of at most 300 μm over the entire width of the membrane, and the lateral flow membrane arrangement () has a constant thickness (), as well as to a lateral flow immunoassay device comprising said membrane arrangement ().