US 11,940,445 B2
ABO blood group point-of-care testing
Majed Refaai, Henrietta, NY (US)
Assigned to UNIVERSITY OF ROCHESTER, Rochester, NY (US)
Appl. No. 17/045,330
Filed by UNIVERSITY OF ROCHESTER, Rochester, NY (US)
PCT Filed Apr. 5, 2019, PCT No. PCT/US2019/026037
§ 371(c)(1), (2) Date Oct. 5, 2020,
PCT Pub. No. WO2019/195710, PCT Pub. Date Oct. 10, 2019.
Claims priority of provisional application 62/654,118, filed on Apr. 6, 2018.
Prior Publication US 2021/0373007 A1, Dec. 2, 2021
Int. Cl. G01N 33/543 (2006.01); G01N 33/80 (2006.01)
CPC G01N 33/54373 (2013.01) [G01N 33/80 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A portable blood typing device comprising:
an enclosure having a proximal end, a distal end, and a hollow interior;
an actuatable plunger positioned within the enclosure, the plunger dividing the hollow interior into a first distal chamber and a second proximal chamber;
a closeable aperture on the distal end of the enclosure providing access to the first chamber; and
at least one well embedded in the enclosure;
wherein the at least one well comprises at least three distinct surface regions, each surface region comprising a probe that binds to a distinct antigen, a first surface region coated in a first probe that binds to antigen A, a second surface region coated in a second probe that binds to antigen D, and a third surface region coated in a third probe that binds to antigen B.