Patent ID: 11931734
Assignee: ORTHO-CLINICAL DIAGNOSTICS, INC.
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 0:
1. An apparatus for analyzing a fluidic sample, the apparatus comprising:
a) at least one assay device including a sample addition zone and a wash addition zone disposed along a fluid flow path;
b) a sample-metering mechanism configured to selectively apply the fluidic sample to the sample addition zone;
c) a wash-metering mechanism configured to selectively apply a wash fluid to the wash addition zone, wherein the wash addition zone includes one or more flow constriction(s) comprising at least one groove spaced apart from and forming a substantially arcuate path disposed substantially around a portion of the fluid flow path to form a meniscus in the applied wash fluid;
d) at least one measurement device; and
e) a controller configured to operate each of the sample-metering mechanism, the wash-metering mechanism, and the at least one measurement device in accordance with a predetermined timing protocol in order to determine at least one characteristic of the applied fluidic sample, wherein the controller operates the wash-metering mechanism after operating the sample-metering mechanism.