The present disclosure relates to a film for oral hemostasis and wound protection and, more particularly, to a film for oral hemostasis and wound protection which, being stuck to a wound area in an oral cavity, delays or prevents microbleeds and controls medicinal component release. The film provided by the present disclosure is capable of including a polyol, an alcohol and a biodegradable polymer in the state of partial swelling, thereby locally absorbing blood or pus or arresting hemorrhage. Moreover, due to its high elongation ratio, the film provided by the present disclosure is capable of maintaining its adhesive force even when having blood, saliva and pus absorbed inside an oral cavity and conveniently deformed according to the shape of a seriously corrugated local area, which causes only slight foreign body sensation even after a long period of time of attachment on the local area. In addition, the film provided by the present disclosure includes the disintegrant which is dissolved and released by reacting with blood to form the microchannels that act as paths for drug release and is capable of adjusting the amount and the size of the microchannels, thereby controlling amount of drug release. The present disclosure doesn't require a patient to detach with their hand the film attached inside an oral cavity because the adhesive layer and the backing layer entirely vanish over time.
本公开涉及一种用于口腔止血和伤口保护的薄膜,更具体地说,涉及一种用于口腔止血和伤口保护的薄膜,该薄膜贴在口腔的伤口部位,可延缓或防止微出血并控制药物成分的释放。本公开提供的薄膜能够在部分膨胀状态下包含多元醇、
酒精和
生物可降解聚合物,从而局部吸收血液或脓液或止血。此外,本公开所提供的薄膜由于具有较高的伸长率,即使在口腔内吸收了血液、唾液和脓液,也能保持其粘附力,并能方便地按照局部严重波纹的形状变形,即使在局部长时间粘附后,也只会产生轻微的异物感。此外,本公开提供的薄膜还包括崩解剂,崩解剂通过与血液反应溶解释放,形成微通道,作为药物释放的路径,并能够调节微通道的数量和大小,从而控制药物释放量。由于粘合剂层和背衬层会随着时间的推移而完全消失,因此本公开的产品不需要患者用手剥离附着在口腔内的薄膜。