Systems for immunoassay tests

US8753574B2 · kind B2 · utility

Assignee

• ACCESS MEDICAL SYSTEMS, LTD. · US

Inventors

• Hong Tan · San Jose, US
• Ming Xia · San Jose, US
• Yushan Tan · Shanghai, CN
• Jun Chen · Shanghai, CN
• Erhua Cao · Shanghai, CN
• Genqian Li · Shanghai, CN
• Robert F. Zuk · Burlingame, US

Key dates

• Filing date: Jul 5, 2013
• Grant date: Jun 17, 2014
• Expiry date: Jul 5, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2035/0436
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

This invention relates to a cartridge for an immunoassay test. The cartridge comprises (a) a probe well comprising a probe and a cap, the cap being in a closed position to enclose the probe in the probe well, wherein the probe has a bottom tip coated with analyte-binding molecules; (b) a sample well to receive a sample; (c) one or more reagent wells; (d) a plurality of wash wells each containing a first aqueous solution; and (e) a measurement well having a light transmissive bottom, the measurement well containing a second aqueous solution; wherein the openings of the sample well, reagent well, measurement well and wash wells are sealed. The present invention also relates to an apparatus for loading and releasing a probe. The apparatus comprises a push pin and a groove to load and transfer the probe to a plurality of locations, such as different wells in the above-mentioned cartridge, to conduct the immunoassay test.