US 12,458,259 B2
Saliva test strip and method
Thanh Cong Nguyen, Sunshine West (AU); Efstratios Skafidas, Thornbury (AU); Duc Hau Huynh, Lalor (AU); Michael Erlichster, Caulfield North (AU); Duc Phuong Nguyen, Deer Park (AU); Hsien Ming, Footscray (AU); Gursharan Chana, Fitzroy North (AU); Ting Ting Lee, Footscray (AU); Chathurika Darshani Abeyrathne, Mitcham (AU); You Liang, Carlton (AU); Trevor John Kilpatrick, Parkville (AU); Michael Luther, Austin, TX (US); and Alan Dayvault Luther, Edina, MN (US)
Assigned to MX3 Diagnostics, Inc., Austin, TX (US)
Filed by MX3 Diagnostics, Inc., Austin, TX (US)
Filed on May 31, 2023, as Appl. No. 18/326,472.
Application 18/326,472 is a continuation of application No. 16/924,386, filed on Jul. 9, 2020, granted, now 11,701,036.
Claims priority of provisional application 62/872,339, filed on Jul. 10, 2019.
Prior Publication US 2024/0138723 A1, May 2, 2024
Int. Cl. A61B 5/145 (2006.01); A61B 10/00 (2006.01); B01L 3/00 (2006.01); G01N 27/327 (2006.01)
CPC A61B 5/14546 (2013.01) [A61B 10/0051 (2013.01); B01L 3/502715 (2013.01); B01L 3/502723 (2013.01); B01L 3/567 (2013.01); G01N 27/3272 (2013.01); A61B 2562/0295 (2013.01); B01L 2300/123 (2013.01); B01L 2400/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A test strip for sampling a bodily fluid, the test strip comprising:
multiple layers of a substrate material;
a microfluidic channel formed between at least some of the multiple layers;
multiple electrodes on one of the multiple layers, positioned and partially exposed within the microfluidic channel; and
a region at or near an entrance to the microfluidic channel, wherein the region comprises a surface feature configured to selectively limit the flow of of bubbles present in the sample into the microfluidic channel.