19-07-2018 дата публикации
Номер: US20180200403A1
The present disclosure provides a film composed of a polymer mixture, wherein the polymer mixture includes: a hydrophobic composition including polycaprolactone (PCL); and at least one hydrophilic polymer selected from a group consisting of alginate, gelatin, hyaluronic acid, polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), polyethylene glycol (PEG), collagen, demineralized bone matrix (DBM), bone morphogenetic protein (BMP), albumin, chitosan, fibrin, polyoxyethylene, polyvinylpyrrolidone, wherein the weight ratio of the hydrophobic composition to the hydrophilic polymer is about 1:0.01-100, and wherein the film has the effect of preventing leakage from a surgical wound or a diffuse wound. 1. A film , composed of a polymer mixture ,wherein the polymer mixture comprises:a hydrophobic composition comprising polycaprolactone (PCL); and 'alginate, gelatin, hyaluronic acid, polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), polyethylene glycol (PEG), collagen, demineralized bone matrix (DBM), bone morphogenetic protein (BMP), albumin, chitosan, fibrin, polyoxyethylene and polyvinylpyrrolidone,', 'at least one hydrophilic polymer, selected from a group consisting ofwherein a weight ratio of the hydrophobic composition to the at least one hydrophilic polymer is about 1:0.01-100.2. The film as claimed in claim 1 , wherein the at least one hydrophilic polymer is in the form of a solid particle.3. The film as claimed in claim 1 , wherein the at least one hydrophilic polymer is dissolved in a solvent to be in the form of a liquid polymer.4. The film as claimed in claim 1 , wherein the at least one hydrophilic polymer is alginate.5. The film as claimed in claim 4 , wherein the weight ratio of the hydrophobic composition to the alginate is about 1:0.05-80.6. The film as claimed in claim 1 , wherein the at least one hydrophilic polymer is gelatin.7. The film as claimed in claim 6 , wherein the weight ratio of the hydrophobic composition to the gelatin is about 1:0.05 ...
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