US 12,138,606 B2
3-d mixing and particle delivery via movable electromagnets assemblies
Don W Arnold, Livermore, CA (US); Thomas R. Covey, Richmond Hill (CA); and Chang Liu, Richmond Hill (CA)
Assigned to DH Technologies Development Pte. Ltd., Singapore (SG)
Appl. No. 16/765,854
Filed by DH Technologies Development Pte. Ltd., Singapore (SG)
PCT Filed Nov. 20, 2018, PCT No. PCT/IB2018/059146
§ 371(c)(1), (2) Date May 20, 2020,
PCT Pub. No. WO2019/102355, PCT Pub. Date May 31, 2019.
Claims priority of provisional application 62/589,098, filed on Nov. 21, 2017.
Prior Publication US 2020/0360879 A1, Nov. 19, 2020
Int. Cl. B01F 33/451 (2022.01); B01F 23/50 (2022.01); B01F 35/221 (2022.01); B03C 1/01 (2006.01); B03C 1/033 (2006.01); B03C 1/28 (2006.01); B03C 1/30 (2006.01); G01R 33/12 (2006.01); B01F 101/23 (2022.01)
CPC B01F 33/451 (2022.01) [B01F 23/59 (2022.01); B01F 35/221 (2022.01); B03C 1/01 (2013.01); B03C 1/0335 (2013.01); B03C 1/288 (2013.01); B03C 1/30 (2013.01); B01F 2101/23 (2022.01); B03C 2201/18 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A fluid processing system, comprising,
a sample container including at least one sample chamber for containing a fluid and a plurality of magnetic particles,
at least one movable magnetic assembly configured to be movably inserted into or out of said sample chamber, said movable magnetic assembly comprising a plurality of electromagnets arranged to generate a magnetic field within at least a portion of the sample chamber when the assembly is inserted at least partially into said sample chamber,
at least one magnetic structure comprising a plurality of electromagnets disposed around said sample chamber,
at least one signal generator for applying electrical signals to said electromagnets of the magnetic assembly and said plurality of electromagnets of said movable magnetic assembly, where said signal generator is configured to generate AC signals for application to said plurality of electromagnets of said magnetic assembly and said plurality of electromagnets of said at least one magnetic structure, and
a controller coupled to said signal generator for controlling phases of the electrical signals applied to said electromagnets so as to generate magnetic field gradients within said at least a portion of the sample chamber effective to magnetically influence the plurality of the magnetic particles.