US 12,134,094 B2
Interface for a microfluidic device
James Bennett, Tyne and Wear (GB); Neil Litten, Sonning (GB); Richard Smith, Gamlingay (GB); and Julian Brandon-Jones, Whittlesford (GB)
Assigned to QUANTUMDX GROUP LIMITED, Newcastle Upon Tyne (GB)
Appl. No. 17/593,171
Filed by QUANTUMDX GROUP LIMITED, Tyne and Wear (GB)
PCT Filed Mar. 9, 2020, PCT No. PCT/GB2020/050555
§ 371(c)(1), (2) Date Sep. 10, 2021,
PCT Pub. No. WO2020/183142, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 1903402 (GB), filed on Mar. 12, 2019.
Prior Publication US 2022/0184616 A1, Jun. 16, 2022
Int. Cl. B01L 3/00 (2006.01)
CPC B01L 3/502715 (2013.01) [B01L 2200/141 (2013.01); B01L 2300/0672 (2013.01); B01L 2300/0832 (2013.01); B01L 2400/0478 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An interface for a microfluidic device, the interface comprising:
a seal portion configured to be moved from a first position to a second position within a reservoir in response to an applied force, movement of the seal portion within the reservoir causing the volume of said reservoir to increase;
a hollow needle comprising a first end and a second end, said first end locatable in fluid communication with the reservoir and said second end located outside of the reservoir and arranged for piercing, wherein the seal portion and the hollow needle are configured to draw a predetermined volume of fluid through the hollow needle when the seal portion moves from the first position to the second position, and
a seal actuating member configured to move the seal portion from the first position to the second position within the reservoir, only in response to a force applied to the seal actuating member by a fluid container.