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:
Nov. 12, 2013
Filed:
Jun. 02, 2009
Dirk Kurowski, Gevelsberg, DE;
Mario Hempel, Dortmund, DE;
Gert Blankenstein, Dortmund, DE;
Tobias Rodenfels, Dortmund, DE;
Dirk Kurowski, Gevelsberg, DE;
Mario Hempel, Dortmund, DE;
Gert Blankenstein, Dortmund, DE;
Tobias Rodenfels, Dortmund, DE;
Boehringer Ingelheim Microparts GmbH, Dortmund, DE;
Abstract
A microfluidic device meters liquids into a network of channels or chambers partly formed by a film partly attached to and above a substrate, the network permitting flow of fluid above the substrate. To form a channel or chamber, the edge zone between unattached and attached portions of the film forms a wedge of material by viscous flow of film material as the film is laminated to the substrate, this wedge forming a transition between the chamber wall and the substrate, raising the wall above the plane of the substrate. Film is laminated with a mask having an opening, the mask pressed onto the film under pressure and/or with heat. The film is brought to a temperature to produce a viscous flow of film and/or substrate medium into the region of the opening, forming a wedge of material as the film bulges up at the opening to form a chamber.