US 11,857,966 B1
Methods and devices for sample collection and sample separation
Deborah Sloan, San Ramon, CA (US); and Channing Robertson, Palo Alto, CA (US)
Assigned to Labrador Diagnostics LLC, Wilmington, DE (US)
Filed by Labrador Diagnostics LLC, Wilmington, DE (US)
Filed on Mar. 15, 2018, as Appl. No. 15/922,603.
Claims priority of provisional application 62/471,918, filed on Mar. 15, 2017.
Int. Cl. B01L 3/00 (2006.01); G01N 33/49 (2006.01)
CPC B01L 3/502753 (2013.01) [G01N 33/491 (2013.01); B01L 2200/027 (2013.01); B01L 2200/0605 (2013.01); B01L 2200/0631 (2013.01); B01L 2300/161 (2013.01); B01L 2400/0406 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A device for use with a sample having a suspension of formed components, the device comprising:
at least one sample inlet for receiving said sample with the formed components;
at least one outlet configured for outputting substantially only a liquid portion of the sample; and
a separation material comprising polysulfone and functionalized with a material thereon and positioned along at least a first pathway between the sample inlet and the outlet wherein said separation material is configured to remove formed components from the sample prior to outputting the liquid portion at the outlet;
a distributor positioned with the separation material to define an interface provides for propagating the sample laterally over the separation material relative to a long longitudinal axis of separation;
wherein the separation material is functionalized with material comprising N-hydroxysuccinimide (NHS) ester terminated polyethylene glycol (PEG) chains.