US 12,461,003 B2
Biological fluid sample assessment
Efstratios Skafidas, Thornbury (AU); Hsien Ming, Footscray (AU); You Liang, Carlton (AU); Duc Huynh, Lalor (AU); Thanh Nguyen, Sunshine West (AU); and Michael Erlichster, Caulfield North (AU)
Assigned to MX3 Diagnostics, Inc., Austin, TX (US)
Filed by MX3 Diagnostics, Inc., Austin, TX (US)
Filed on May 31, 2023, as Appl. No. 18/326,722.
Application 18/326,722 is a continuation of application No. 17/159,770, filed on Jan. 27, 2021, granted, now 11,703,436.
Claims priority of provisional application 62/967,694, filed on Jan. 30, 2020.
Prior Publication US 2024/0151623 A1, May 9, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 11/02 (2006.01); G01N 33/487 (2006.01); G01N 33/49 (2006.01); G01N 33/493 (2006.01)
CPC G01N 11/02 (2013.01) [G01N 33/48707 (2013.01); G01N 33/49 (2013.01); G01N 33/493 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for assessing a bodily fluid comprising:
a test strip comprising:
a microfluidic channel configured to receive a bodily fluid sample;
a first electrode located at a first location in the microfluidic channel;
a second electrode located at a second location in the microfluidic channel; and
a third electrode at a third location in the microfluidic channel; and
an analysis device configured to:
apply a periodic signal with the first electrode;
monitor the applied periodic signal with the second electrode;
use the third electrode as a reference electrode;
continue to apply the periodic signal, monitor the periodic signal and use the third electrode as a reference electrode during collection of the bodily fluid sample in the microfluidic channel; and
determine that the bodily fluid sample is a sufficient volume for analyzing by identifying a period of stability in the monitored periodic signal, based at least in part on the applying and monitoring of the periodic signal,
wherein each of the first electrode, the second electrode and the third electrode has a fixed function.