	US 12,226,265 B2
	Method for manufacturing marker with aerated hydrogel
Harry Kyuhoon Ahn, Liberty Township, OH (US)
Assigned to Devicor Medical Products, Inc., Cincinnati, OH (US)
Filed by Devicor Medical Products, Inc., Cincinnati, OH (US)
Filed on Jul. 13, 2021, as Appl. No. 17/373,906.
Application 17/373,906 is a division of application No. 16/131,346, filed on Sep. 14, 2018, granted, now 11,090,132.
Claims priority of provisional application 62/559,088, filed on Sep. 15, 2017.
Prior Publication US 2021/0338369 A1, Nov. 4, 2021
Int. Cl. A61L 31/14 (2006.01); A61B 90/00 (2016.01); A61K 49/04 (2006.01); A61K 49/18 (2006.01); A61L 31/18 (2006.01); C08J 9/30 (2006.01)

CPC A61B 90/39 (2016.02) [A61K 49/04 (2013.01); A61K 49/1803 (2013.01); A61L 31/145 (2013.01); A61L 31/146 (2013.01); A61L 31/148 (2013.01); A61L 31/18 (2013.01); C08J 9/30 (2013.01); A61B 2090/3908 (2016.02); A61B 2090/3933 (2016.02); C08J 2205/022 (2013.01); C08J 2207/10 (2013.01); C08J 2300/16 (2013.01)]

6 Claims

1. A method of manufacturing an aerated hydrogel comprising:

inserting hydrogel material in a first container;

inserting aerating fluid in a second container;

coupling the first and second containers together through a lumen of a coupler; and

transferring the inserted hydrogel and the inserted aerating fluid back and forth between the first and second containers through a filter positioned in a fluid communication path between the first and second containers and having a plurality of openings with each opening having a smaller area than the lumen of the coupler such that each opening is configured to introduce turbulence in the hydrogel or the aerating fluid.