US 12,239,772 B2
Nanoclay sorbent methods for use with dialysis
Rosa H. Yeh, Libertyville, IL (US); Wei Xie, Indian Creek, IL (US); Hsinjin E. Yang, Long Grove, IL (US); Michael T. K. Ling, Vernon Hills, IL (US); and Ying-Cheng Lo, Green Oaks, IL (US)
Assigned to BAXTER INTERNATIONAL INC., Deerfield, IL (US); and BAXTER HEALTHCARE SA, Glattpark (CH)
Filed by BAXTER INTERNATIONAL INC., Deerfield, IL (US); and BAXTER HEALTHCARE SA, Glattpark (CH)
Filed on Jul. 29, 2021, as Appl. No. 17/388,265.
Application 16/412,999 is a division of application No. 15/816,550, filed on Nov. 17, 2017, granted, now 10,342,912, issued on Jul. 9, 2019.
Application 17/388,265 is a continuation of application No. 16/412,999, filed on May 15, 2019, granted, now 11,097,041.
Application 15/816,550 is a continuation of application No. 12/166,063, filed on Jul. 1, 2008, granted, now 9,821,105, issued on Nov. 21, 2017.
Prior Publication US 2021/0353840 A1, Nov. 18, 2021
Int. Cl. A61M 1/00 (2006.01); A61M 1/14 (2006.01); A61M 1/16 (2006.01); A61M 1/28 (2006.01); A61M 1/34 (2006.01); B29C 48/09 (2019.01); B29C 48/152 (2019.01); A61M 1/30 (2006.01)
CPC A61M 1/3486 (2014.02) [A61M 1/14 (2013.01); A61M 1/154 (2022.05); A61M 1/155 (2022.05); A61M 1/1565 (2022.05); A61M 1/159 (2022.05); A61M 1/16 (2013.01); A61M 1/1696 (2013.01); A61M 1/28 (2013.01); A61M 1/34 (2013.01); A61M 1/3406 (2014.02); A61M 1/3472 (2013.01); B29C 48/09 (2019.02); B29C 48/152 (2019.02); A61M 1/1619 (2014.02); A61M 1/284 (2014.02); A61M 1/30 (2013.01); A61M 1/3413 (2013.01); A61M 2202/0021 (2013.01); A61M 2202/0028 (2013.01); A61M 2202/0078 (2013.01); A61M 2202/0498 (2013.01); A61M 2205/0211 (2013.01); A61M 2205/12 (2013.01); A61M 2205/125 (2013.01); A61M 2205/126 (2013.01); A61M 2205/15 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/50 (2013.01); A61M 2205/75 (2013.01); A61M 2209/088 (2013.01); A61M 2210/1017 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of making hollow fibers and forming a filter by using the hollow fibers, the method comprising:
preparing a spinning solution of a polymer for a hollow fiber;
preparing an infusing slurry of clay nanoparticles, a solvent used in the spinning solution and water;
extruding the spinning solution through nozzles of a spinneret to form a hollow fiber;
extruding the infusing slurry through a center of the spinneret into a lumen of the hollow fiber;
placing the hollow fiber into a coagulation bath;
gathering the hollow fiber, wherein the clay nanoparticles are located within the lumen of the hollow fiber;
at least partially drying the hollow fiber;
cutting the hollow fiber into a plurality of lengths;
forming the filter by potting ends of the plurality of lengths; and
placing the filter into a housing.