US 12,343,738 B2
Continuous flow centrifugation chambers
Benjamin E. Kusters, Pleasant Prairie, WI (US); Richard I. Brown, Northbrook, IL (US); and Kyungyoon Min, Kildeer, IL (US)
Assigned to Fenwal, Inc., Lake Zurich, IL (US)
Filed by Fenwal, Inc., Lake Zurich, IL (US)
Filed on Apr. 4, 2022, as Appl. No. 17/712,531.
Claims priority of provisional application 63/296,532, filed on Jan. 5, 2022.
Claims priority of provisional application 63/211,652, filed on Jun. 17, 2021.
Claims priority of provisional application 63/170,678, filed on Apr. 5, 2021.
Prior Publication US 2022/0314237 A1, Oct. 6, 2022
Int. Cl. B04B 5/04 (2006.01); B04B 11/02 (2006.01)
CPC B04B 5/0442 (2013.01) [B04B 11/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A combination of a single-stage centrifuge and a single-stage fluid separation chamber configured to be received within the single-stage centrifuge for rotation about an axis, wherein the single-stage fluid separation chamber includes
a central hub coinciding with the axis;
a generally annular low-G wall and a generally annular high-G wall extending about the central hub in a spaced apart relationship to define therebetween a single-stage separation channel having an upstream end and a downstream end; and
a plurality of radial walls extending from the central hub to the single-stage separation channel to define a terminal wall separating the upstream end of the single-stage separation channel from the downstream end of the single-stage separation channel, an inlet passage at the upstream end of the single-stage separation channel, and low-G and high-G outlet passages, wherein
the high-G wall has a radius that decreases from the upstream end of the single-stage separation channel to the downstream end of the single-stage separation channel at each axial position,
the low-G wall has a radius that decreases from the upstream end of the single-stage separation channel to the downstream end of the single-stage separation channel at each axial position, and
a width of the single-stage separation channel is at least substantially uniform from the upstream end of the single-stage separation channel to the downstream end of the single-stage separation channel at each axial position.