	US 12,259,060 B2
	Magnetically tunable microfluidic check valve, microfluidic pumps, syringe pump, and methods of manufacturing thereof
Sean Christopher Morgan, Halifax (CA); Vincent Joseph Sieben, Bedford (CA); Edward Arthur Luy, Halifax (CA); and Gregory Eric Begin, Enfield (CA)
Assigned to Dartmouth Ocean Technologies Inc., Dartmouth (CA)
Appl. No. 17/603,356
Filed by Dartmouth Ocean Technologies Inc., Dartmouth (CA)
PCT Filed May 29, 2020, PCT No. PCT/CA2020/050739 § 371(c)(1), (2) Date Oct. 13, 2021, PCT Pub. No. WO2020/237390, PCT Pub. Date Dec. 3, 2020.
Claims priority of provisional application 62/854,621, filed on May 30, 2019.
Prior Publication US 2024/0426391 A1, Dec. 26, 2024
Int. Cl. F16K 31/08 (2006.01); B01L 3/00 (2006.01); F16K 15/04 (2006.01); F16K 15/18 (2006.01)

CPC F16K 31/084 (2013.01) [B01L 3/502738 (2013.01); F16K 15/04 (2013.01); F16K 15/1823 (2021.08)]

22 Claims

1. A bi-directional microfluidic pump, comprising:

first and second fluidic inlet channels;

first and second fluidic outlet channels;

a fluidic actuation channel fluidically coupling the first and second fluidic inlet channels and the first and second fluidic outlet channels;

a check-valve disposed in each of the first fluidic inlet channel, the first fluidic outlet channel, the second fluidic inlet channel, and the second fluidic outlet channel; and

a permanent magnet disposed within the fluidic actuation channel and configured to move within a region of the fluidic actuation channel between a first side proximate to the first fluidic inlet and outlet channels and a second side proximate to the second fluidic inlet and outlet channels.