US 12,324,724 B2
Forward osmosis medical and wound care devices
Brian H. Silver, Glenview, IL (US)
Appl. No. 17/430,169
Filed by Brian H. Silver, Glenview, IL (US)
PCT Filed Feb. 10, 2020, PCT No. PCT/US2020/017558
§ 371(c)(1), (2) Date Aug. 11, 2021,
PCT Pub. No. WO2020/167694, PCT Pub. Date Aug. 20, 2020.
Claims priority of provisional application 62/805,470, filed on Feb. 14, 2019.
Claims priority of provisional application 62/804,759, filed on Feb. 13, 2019.
Prior Publication US 2022/0151835 A1, May 19, 2022
Int. Cl. A61F 13/00 (2024.01); A61F 13/0203 (2024.01); A61F 13/0206 (2024.01); A61F 13/05 (2024.01); A61M 1/00 (2006.01)
CPC A61F 13/00063 (2013.01) [A61F 13/0206 (2013.01); A61F 13/0213 (2013.01); A61F 13/0223 (2013.01); A61F 13/05 (2024.01); A61M 1/98 (2021.05); A61M 1/982 (2021.05); A61F 2013/00876 (2013.01); A61M 1/60 (2021.05); A61M 2205/7518 (2013.01); A61M 2205/7536 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A wound treatment device, comprising:
a first assembly including a filter configured as a forward osmosis filter to remove water from wound drainage fluid of a wound and a first adherence layer configured to secure the first assembly to a patient with the filter positioned over the wound; and
a second assembly selectively securable and removable from the first assembly, the second assembly including a second layer at least partially defining a chamber for collecting processed liquid or permeate from the filter, a second adherence layer positioned to selectively adhere to the first assembly, and at least one osmotic agent to provide an osmotic potential to pull water from the wound drainage fluid through the forward osmosis filter, the at least one osmotic agent including glycerin, said at least one osmotic agent located in said chamber to be in contact with the filter when the second assembly is secured to the first assembly.