非填塞型止血防粘连材料的制备及评价  

Preparation and evaluation of non-packing hemostatic base on chitosan

作　　者：张涛[1] 鲁路[2] 周长忍[2] 涂智峰[3] 贾海英[1] 王继群[3] 李垒[2] 

机构地区：[1]暨南大学附属第一医院,广东广州510630 [2]暨南大学理工学院材料科学与工程系,广东广州510630 [3]佛山市顺德第一人民医院附属杏坛医院,广东顺德528325

出　　处：《功能材料》2012年第18期2496-2499,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(81171459);广东省科技计划资助项目(2010B031100027)

摘　　要：选用壳聚糖与透明质酸复合,采用喷雾干燥的方法制备了壳聚糖-透明质酸水凝胶微球。扫描电镜观察结果显示微球分散均匀,尺寸在1～2μm范围。微球能够在15min内达到溶胀平衡,溶胀率达30倍。体外凝血实验及动物实验结果显示该材料具有良好的止血、防粘连特性,对正常鼻粘膜无严重负面影响,其使用安全性明显优于目前临床上广泛应用的填塞型鼻用止血材料。Hemostasis is one common problem in otolaryngology.Hydrogels derived from natural proteins and polysaccharides are ideal hemostatic materials since they resemble the extracellular matrices of the tissue comprising various amino acids and sugar based macromolecules.The hydrogel microspheres based on chitosan and hyaluronic by the spray-drying method was presented in this work.Perfectly spherical hydrogel microspheres were obtained in the size range of 1-2μm.The microspheres reached the balance swelling within 15min,and the swelling ratio reached 30 times of the original.The animal test showed that there was little serious negative effect of the Chi-HA microspheres on the normal nasal mucosa.And the Chi-HA microspheres were more safety than sponge when used in packing nasal cavity.

关 键 词：壳聚糖 透明质酸 止血 防粘连 鼻粘膜 

分 类 号：R318.08[医药卫生—生物医学工程]