US 12,214,351 B2
Developer solution vial
Mark Fischl, Bethlehem, PA (US); Keith Kardos, Bethlehem, PA (US); Attila Nemeth, Bethlehem, PA (US); and Mark Emrick, Bethlehem, PA (US)
Assigned to OraSure Technologies, Inc., Bethlehem, PA (US)
Filed by ORASURE TECHNOLOGIES, INC., Bethlehem, PA (US)
Filed on Dec. 9, 2021, as Appl. No. 17/546,440.
Claims priority of provisional application 63/124,315, filed on Dec. 11, 2020.
Prior Publication US 2022/0184606 A1, Jun. 16, 2022
Int. Cl. B01L 3/00 (2006.01); G01N 33/543 (2006.01)
CPC B01L 3/5029 (2013.01) [G01N 33/54388 (2021.08); B01L 2200/16 (2013.01); B01L 2300/069 (2013.01); B01L 2300/0832 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A developer solution vial for use with an assay device for a point-of-care diagnosis, comprising:
a cavity to contain a developer solution; and
an elongated housing surrounding the cavity and comprising an opening extending to the cavity, and a mating portion to interface with a head of a sampling device and/or a collection pad of the assay device, the mating portion comprising, in outward order from cavity opening:
an extraction portion comprising a rounded semi-circular cross-sectional shape that protrudes into the cavity;
a sampling device interface portion to accept the sampling device into the cavity to elute a sample into the developer solution, and
a seating portion to mate with a resting surface of the collection pad of the assay device or housing of the collection pad of the assay device to prevent compression of a sampling portion of the collection pad when in a resting position in the developer solution.