US 12,296,081 B2
Plasmapheresis methods
Kyungyoon Min, Kildeer, IL (US)
Assigned to Fenwal, Inc., Lake Zurich, IL (US)
Appl. No. 17/044,635
Filed by Fenwal, Inc., Lake Zurich, IL (US)
PCT Filed Apr. 3, 2019, PCT No. PCT/US2019/025572
§ 371(c)(1), (2) Date Oct. 1, 2020,
PCT Pub. No. WO2019/195414, PCT Pub. Date Oct. 10, 2019.
Claims priority of provisional application 62/652,211, filed on Apr. 3, 2018.
Prior Publication US 2021/0100943 A1, Apr. 8, 2021
Int. Cl. A61M 1/34 (2006.01); A61M 1/26 (2006.01); A61M 1/36 (2006.01); A61M 1/38 (2006.01)
CPC A61M 1/3496 (2013.01) [A61M 1/262 (2014.02); A61M 1/3672 (2013.01); A61M 1/382 (2013.01); A61M 2205/3306 (2013.01); A61M 2230/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of collecting blood components from anticoagulated whole blood having a selected volume of anticoagulant comprising:
a) withdrawing whole blood from a donor;
b) combining said whole blood with a selected volume of anticoagulant having a citrate content of greater than 4%;
c) separating said anticoagulated blood into plasma and red blood cells;
d) collecting said separated plasma in a plasma collection container;
e) collecting separated red blood cells in a reservoir;
f) monitoring the amount of red blood cells collected in said reservoir; and
g) introducing an amount of anticoagulant into said reservoir when a predetermined amount of red blood cells has been collected in said reservoir.