US 11,998,644 B2
Dry pad
In Yong Seo, Seoul (KR); and Ji Hyun Lee, Incheon (KR)
Assigned to AMOLIFESCIENCE CO., LTD., Seoul (KR)
Appl. No. 15/768,300
Filed by AMOLIFESCIENCE CO., LTD., Seoul (KR)
PCT Filed Oct. 17, 2016, PCT No. PCT/KR2016/011615
§ 371(c)(1), (2) Date Apr. 13, 2018,
PCT Pub. No. WO2017/065588, PCT Pub. Date Apr. 20, 2017.
Claims priority of application No. 10-2015-0144640 (KR), filed on Oct. 16, 2015.
Prior Publication US 2018/0303763 A1, Oct. 25, 2018
Int. Cl. A61K 9/70 (2006.01); A61F 13/00 (2006.01); A61F 13/01 (2024.01); A61K 33/38 (2006.01); A61K 38/43 (2006.01); A61K 45/06 (2006.01); A61L 15/42 (2006.01); A61L 15/44 (2006.01); A61L 15/46 (2006.01); A61L 15/60 (2006.01); D04H 1/728 (2012.01); A61K 47/64 (2017.01)
CPC A61K 9/7007 (2013.01) [A61F 13/00 (2013.01); A61F 13/00063 (2013.01); A61F 13/01017 (2024.01); A61F 13/01029 (2024.01); A61K 33/38 (2013.01); A61K 38/43 (2013.01); A61K 45/06 (2013.01); A61L 15/42 (2013.01); A61L 15/44 (2013.01); A61L 15/46 (2013.01); A61L 15/60 (2013.01); D04H 1/728 (2013.01); A61K 47/64 (2017.08); A61L 2300/104 (2013.01); A61L 2300/254 (2013.01); A61L 2300/404 (2013.01); A61L 2300/414 (2013.01); A61L 2300/428 (2013.01); A61L 2400/12 (2013.01)] 14 Claims
 
1. A dry pad, comprising:
a wound-covering membrane; and
a first release member on which the wound-covering membrane is disposed, wherein the first release member is configured to be able to be separated from the wound-covering membrane,
wherein the wound-covering membrane comprises: at least two layers of wound-covering membranes, the at least two layers of wound-covering membranes each being formed of electrospun fibers,
wherein each of the electrospun fibers is made of a solution consisting of a hydrophilic polymer, a hydrophobic polymer, and a dry wound-healing agent, wherein the hydrophilic polymer is configured to be swollen by an exudate secreted from a wound of a user, and the dry wound-healing agent is configured to be released towards the wound through swelling of the hydrophilic polymer, and
wherein, in the at least two layers of wound-covering membranes, a content of the hydrophilic polymer gradually increases towards the wound so as to achieve rapid swelling by the exudate.