US 11,701,036 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, Fitroy 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 Jul. 9, 2020, as Appl. No. 16/924,386.
Claims priority of provisional application 62/872,339, filed on Jul. 10, 2019.
Prior Publication US 2021/0007646 A1, Jan. 14, 2021
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)] 21 Claims
OG exemplary drawing
 
1. A test strip for sampling a bodily fluid, the test strip comprising:
multiple layers of a substrate material;
an adhesive between at least some of the multiple layers;
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;
an additional material positioned at or near an entrance to the microfluidic channel, to selectively limit the flow of at least one of bubbles or debris into the microfluidic channel; and
multiple exit ports in at least one of the multiple layers to allow for release of pressure from the test strip and to prevent disruption of sample flow through the microfluidic channel due to blockages, wherein the multiple exit ports comprise:
a first exit port in a top layer of the multiple layers; and
at least one second exit port in a side edge of the test strip.