一种消化道止血颗粒及其制备方法
本发明提供一种消化道止血颗粒及其制备方法,所述消化道止血颗粒的组分包括止血剂和赋形剂;所述止血剂包括聚丙烯酸、聚乙烯亚胺和聚氧乙烯;所述聚丙烯酸、聚乙烯亚胺和聚氧乙烯的质量比为1:(1‑2):(0.04‑1)。所述止血颗粒具有优异的内窥镜导管输送性能,喷洒在出血创面后能快速吸收大量水分原位形成水凝胶,粘附于组织表面形成物理屏障,实现即时止血,同时,原位形成的水凝胶具有优异的粘附稳定性和耐腐蚀性,可以保证创面在术后72 h仍有保护,降低再出血风险。
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