Chemistry: analytical and immunological testing – Involving diffusion or migration of antigen or antibody
Reexamination Certificate
2006-06-13
2009-06-16
Nguyen, Bao-Thuy L (Department: 1641)
Chemistry: analytical and immunological testing
Involving diffusion or migration of antigen or antibody
C436S518000, C436S520000, C436S523000, C436S531000, C436S535000, C436S807000, C436S808000, C436S810000, C435S287100, C435S287700, C435S805000, C435S810000, C435S004000, C435S287800, C435S287900, C435S288200, C435S288400, C435S288500, C422S050000, C422S051000, C422S051000, C422S067000, C422S067000
Reexamination Certificate
active
07547557
ABSTRACT:
A diagnostic assay device that directs an applied sample to the analytical membrane of a directed flow device. The device has a sample receiving port defined by layers of built-up material on one end of the test strip. The port contains the sample and specifically directs it to the membrane in a controlled fashion. Additional features include configuration of the housing in a general C-shape with the test strip spanning the opening of the C-shape to allow access by a reader device. A preferred method employs superparamagnetic particles to label the target analytes for detection and measurement by means of an electromagnetic reader device.
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International Search Report and Written Opinion of the International Searching Authority, 5 pages (Jan. 25, 2008).
Chow Herbert S.
LaBorde Ronald T.
Nguyen Bao-Thuy L
Quantum Design, Inc.
The Maxham Firm
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