US 11,982,669 B2
Flow test unit, kit, and use of a flow test unit for performing a detection reaction
Martin Strnad, Simonswald (DE); Andreas Schnur, Rottweil (DE); Joel Riemer, Breitnau (DE); and Oliver Wiech, Donaueschingen (DE)
Assigned to Testo SE & Co. KGAA, Lenzkirch (DE)
Filed by Testo SE & Co. KGaA, Lenzkirch (DE)
Filed on Jun. 25, 2020, as Appl. No. 16/911,604.
Claims priority of application No. 102019117413.9 (DE), filed on Jun. 27, 2019.
Prior Publication US 2020/0408755 A1, Dec. 31, 2020
Int. Cl. G01N 33/53 (2006.01); B01L 3/00 (2006.01); G01N 33/543 (2006.01)
CPC G01N 33/5302 (2013.01) [B01L 3/5023 (2013.01); B01L 3/5635 (2013.01); G01N 33/54388 (2021.08); B01L 2200/0689 (2013.01); B01L 2200/082 (2013.01); B01L 2200/141 (2013.01); B01L 2300/0825 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A flow test unit (1) comprising:
a housing (2) closed to the outside, which comprises at least one test strip (3),
at least one admission opening (4) in the housing (2), such that the housing is closed except for the at least one admission opening,
the at least one test strip (3) is arranged inside the housing (2) such that a wetting region (5) of the at least one test strip is wettable with liquid (6) entering via the at least one admission opening (4),
the housing (2) includes a baffle (16) located therein by which an interior of the housing (2) is divided into two chambers (17, 18), with the baffle separating the wetting region (5) from an analysis region (10) of the at least one test strip, wherein the at least one test strip is positioned within and extends through a groove or cutout within the baffle (16) preventing pinching of the at least one test strip,
the housing (2) includes an outer face, a coupling point (7) is arranged on the outer face, and the flow test unit (1) is adapted to be coupled via the coupling point (7) to a matching counter-coupling point (8) of a wall of a sample container (9), and
the housing (2) further comprises a pressure-equalizer (11) to promote an inward flow of liquid (6).