US 12,280,235 B2
Assembly and a system suitable for dispensing a liquid from a compressible bag
Ahmed Abdullah Hessam, Hillerød (DK)
Assigned to OSAA INNOVATION APS, Hillerød (DK)
Appl. No. 17/997,031
Filed by OSAA INNOVATION APS, Hillerød (DK)
PCT Filed Apr. 29, 2021, PCT No. PCT/DK2021/050134
§ 371(c)(1), (2) Date Oct. 25, 2022,
PCT Pub. No. WO2021/219187, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. PA 2020 70274 (DK), filed on Apr. 30, 2020.
Prior Publication US 2023/0173248 A1, Jun. 8, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 39/28 (2006.01); A61M 5/168 (2006.01)
CPC A61M 39/28 (2013.01) [A61M 5/16881 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus suitable for dispensing liquid from a compressible bag, the apparatus comprises
a housing having a dispensing end and an opposite rear end, a floor configured for supporting the compressible bag, a pair of parallel guiding tracks, a roller arrangement comprising a roller body having a first and a second roller body ends and a roller surface with a cross-sectional circumference, the roller arrangement has a first roller arrangement end and a second roller arrangement end, respectively engaged with said respective guiding tracks, wherein said guiding tracks are located to guide said roller arrangement to roll said roller arrangement from the rear end location towards the dispensing end, and wherein said roller arrangement comprises an axle rigidly connected to at least one axle flange and wherein said roller body is arranged to rotate around said axle, and a drive arrangement engaged with said roller arrangement for driving said roll of the roller arrangement from the rear end towards the dispensing end, said drive arrangement comprises a spring arrangement, wherein said spring arrangement comprises at least one helical torsion spring located within the roller body, and wherein a first end of the at least one helical torsion spring is engaged with said roller body and a second end of the at least one helical torsion spring is engaged with said at least one axle flange.