US 11,731,083 B2
Filtration assembly and method for microbiological testing
Philippe Rivat, Dorlisheim (FR); Mathieu Arrault, Dabo (FR); and Vincent Schaal, Geispolsheim (FR)
Assigned to Merck Patent GmbH, Darmstadt (DE)
Appl. No. 16/645,132
Filed by Merck Patent GmbH, Darmstadt (DE)
PCT Filed Sep. 4, 2018, PCT No. PCT/EP2018/073681
§ 371(c)(1), (2) Date Mar. 6, 2020,
PCT Pub. No. WO2019/048405, PCT Pub. Date Mar. 14, 2019.
Claims priority of application No. 17290112 (EP), filed on Sep. 6, 2017.
Prior Publication US 2021/0245106 A1, Aug. 12, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 63/08 (2006.01); B01L 3/00 (2006.01); C12Q 1/24 (2006.01); G01N 1/40 (2006.01)
CPC B01D 63/087 (2013.01) [B01L 3/502715 (2013.01); C12Q 1/24 (2013.01); G01N 1/4077 (2013.01); B01D 2313/10 (2013.01); B01D 2313/13 (2013.01); B01D 2313/16 (2013.01); B01L 2300/0681 (2013.01); B01L 2400/049 (2013.01); G01N 2001/4088 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A filtration assembly (1) for microbiological testing, comprising:
a ring-like membrane support (10) holding a filtration membrane (11);
a cylindrical reservoir (20) comprising at least side walls and opposite axial ends having openings and a first axial opening which is removably and fluid-tightly attachable to the membrane support (10) to define a sample volume adjacent to the filtration membrane (11) on a first axial side of the membrane support (10); and
a lid device (40) removably and fluid tightly attachable to a second axial opening of the reservoir (20) to close the second axial opening, wherein the lid device (40) is removably and fluid tightly attachable to the membrane support (10) when the cylindrical reservoir is removed from the membrane support (10) so as to seal the first axial side of the membrane support (10) from an environment.