US 12,329,863 B2
Wound dressing articles and method of manufacturing the same
Hiep Thi Nguyen, Ho Chi Minh (VN); and Toi Van Vo, Arlington, MA (US)
Assigned to Vietnam National University Ho Chi Minh City, Ho Chi Minh (VN)
Filed by Hiep Thi Nguyen, Ho Chi Minh (VN); and Toi Van Vo, Arlington, MA (US)
Filed on Jul. 24, 2022, as Appl. No. 17/814,529.
Prior Publication US 2023/0118969 A1, Apr. 20, 2023
Int. Cl. A61L 15/18 (2006.01); A61F 13/02 (2024.01); A61L 15/22 (2006.01); A61L 15/44 (2006.01); D01D 5/00 (2006.01); D01F 6/30 (2006.01); D01F 6/62 (2006.01)
CPC A61L 15/18 (2013.01) [A61F 13/0289 (2013.01); A61L 15/225 (2013.01); A61L 15/44 (2013.01); D01D 5/0007 (2013.01); D01F 6/30 (2013.01); D01F 6/625 (2013.01); A61L 2300/404 (2013.01); D10B 2509/022 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical dressing article, comprising:
a first layer comprised of polycaprocaptone fibers having a PCL fiber diameter between 0.5 μm to 2.9 μm;
a second layer including a mixture of polycaprolactone and poloxamer fibers (PCL and POX fibers) wherein PCL and POX fiber diameters are between 0.1 μm to 4 μm; and
a third layer further comprising a mixture of gelatin and silver nitrate (AgNO3), wherein said third layer is configured to make direct contact with a wound, said second layer is directly deposited directly on said third layer, and said first layer is directly deposited on said second layer.