Patent · US Active

Assay device having controllable sample size

US10712340B2 · kind B2 · utility

2Cited by

13References

8Claims

0Family size

Assignee

ORTHO-CLINICAL DIAGNOSTICS, INC. · US

Inventors

Edward R. Scalice · Rochester, US
Philip C. Hosimer · Rochester, US
Zhong Ding · Pittsford, US
James D. Kanaley · Honeoye Falls, US
David A. Tomasso · Rochester, US
Daniel P. Salotto · Rochester, US
Timothy C. Warren · Rochester, US

Key dates

Filing date	Jan 18, 2013
Grant date	Jul 14, 2020
Priority date	—
Expiry date	Apr 20, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/54388
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed is an assay device which comprises a liquid sample addition zone, a reagent zone, a detection zone, and a wicking zone, all defining a fluid flow path. The device further comprises a reagent addition zone along and in fluid communication with the fluid flow path downstream of the sample addition zone and upstream of the detection zone. An interrupting wash is added at this reagent addition zone in accordance with the method of the subject invention to control sample volume. The interrupting wash fluid is added at a predetermined fill volume on the chip device and also serves to wash the detection channel and fill the remaining chip volume.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.