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:
Oct. 13, 1998
Filed:
May. 09, 1996
Jin Po Lee, Poway, CA (US);
Syntron Bioresearch, Inc., Carlsbad, CA (US);
Abstract
The invention consists of devices for use in assaying fluid test samples for analyte of interest wherein the samples contain or are suspected of containing cells and cellular components. The devices of the invention each include a hydrophilic cell trap for separation of the cellular fraction from the noncellular fraction of the test sample. The latter fraction migrates through porous, absorbent or bibulous membranes of the device which are impregnated with reagents in at least three separate zones comprising a dye zone, a test zone and a control zone. Formation of a distinctive visual pattern in the control zone indicates that the test was competently performed while formation or relative intensity of the visual pattern in the test zone indicates presence or absence of analyte in the test sample. The devices of the invention are particularly suited for assaying ligands in whole blood without prior separation of erythrocytes and other cells from the blood and without need to measure reflectance in the liquid phase. A method for performing the inventive assays is also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile