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. 05, 2013
Filed:
May. 27, 2010
Iuliu I. Blaga, Fremont, CA (US);
Stevan B. Jovanovich, Livermore, CA (US);
Boris Kobrin, Dublin, CA (US);
Ezra Van Gelder, Palo Alto, CA (US);
Iuliu I. Blaga, Fremont, CA (US);
Stevan B. Jovanovich, Livermore, CA (US);
Boris Kobrin, Dublin, CA (US);
Ezra Van Gelder, Palo Alto, CA (US);
IntegenX Inc., Pleasanton, CA (US);
Abstract
This invention provides fluidic devices, in particular microfluidic devices, with diaphragm valves having low failure rates. Low failure rates are achieved by inhibiting sticking of the diaphragm to functional surfaces such as valve seats, valve chamber and fluidic channels and conduits. One way to implement this is to provide exposed surfaces facing the diaphragm, particularly valve seats, with a low energy material, such as a noble metal, a perfluorinated polymer, a self-assembled monolayer, hard diamond, diamond-like carbon or a metal oxide. In other embodiments, the valves are provided with ridges and the diaphragm is adhered to the fluidic or actuation layer with an adhesive material.