CN112587509A - 一种基于温敏型凝胶的自发热中药贴膏 - Google Patents

一种基于温敏型凝胶的自发热中药贴膏 Download PDF

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CN112587509A
CN112587509A CN202011575823.9A CN202011575823A CN112587509A CN 112587509 A CN112587509 A CN 112587509A CN 202011575823 A CN202011575823 A CN 202011575823A CN 112587509 A CN112587509 A CN 112587509A
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李慧
凌琳
缪思佳
陈永虎
姜幸
郭晶晶
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General Hospital Of Medical Community Keqiao District Hospital Of Traditional Chinese Medicine Shaoxing City
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Abstract

本发明公开了一种基于温敏型凝胶的自发热中药贴膏,涉及一种中药贴膏,包括背衬,所述背衬上还设有自发热包、聚氨酯垫片,所述自发热包热压设于背衬的正中央,所述聚氨酯垫片设于自发热包的四周外围,将自发热包包裹;所述自发热中药贴膏还包括温敏型凝胶。本发明温敏型凝胶的自发热中药贴膏剂具有透皮吸收率高、含膏量大、含量均匀、黏弹性好、皮肤追随性好等优势,配合中医温热疗法,可大大提高中药有效成分透皮吸收率,尤其适用于寒湿及气滞血瘀等中医症侯。

Description

一种基于温敏型凝胶的自发热中药贴膏
技术领域
本发明涉及一种中药贴膏,具体是一种基于温敏型凝胶的自发热中药贴膏。
背景技术
中药凝胶膏剂(也称巴布剂)是以水溶性高分子聚合物为基质骨架材料的外用贴剂,由背衬(常用无纺布、弹力布)、膏体、防黏膜(膏体表面的隔离膜)组成,其将先进的现代制剂技术与传统中药结合,是将传统外用处方改制的理想贴剂类型。与传统膏药相比,它具有透气性良好、强力渗透、透皮吸收快速、不易沾染衣物等明显优势。凝胶膏剂透皮吸收体系与中医“内病外治”理论及经络疗法有机结合,在临床治疗中显示出确切疗效,更加促进了凝胶膏剂在我国的迅速发展。
目前,市场上中药凝胶膏剂主要工艺为基质原料经粉碎过筛后软化混合,然后加入中药粉或提取物涂布于背衬上,再经裁切及包装即得。此工艺所得中药凝胶膏剂存在透皮吸收率低、含膏量低、含量均匀度差、黏弹性不好、皮肤追随性差、易脱落(额外提供压敏胶固定)等缺点。新技术、新方法研究的新品种主要见于文献报道,或仅局限于研究阶段或小规模的手工涂布,难以实现产业化。日本凝胶膏剂产品分为冷巴布(凉爽感)和热巴布(温热感),国内主要集中于冷巴布,基本无药用热巴布。
发明内容
本发明的目的在于提供一种基于温敏型凝胶的自发热中药贴膏,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:
一种基于温敏型凝胶的自发热中药贴膏,包括背衬,所述背衬上还设有自发热包和聚氨酯垫片,所述自发热包热压设于背衬的正中央,所述聚氨酯垫片设于自发热包的四周外围,将自发热包包裹;所述自发热中药贴膏还包括温敏型凝胶。
进一步的,所述背衬是由无纺布或弹力布制成。
进一步的,所述自发热包由外层隔离层和自发热材料组成。
进一步的,所述外层隔离层为微孔透气膜无纺布袋。
进一步的,所述自发热材料是由如下对应重量份的物质组成:还原铁粉8.6份、活性炭11.4份、氯化钠5.7份、蛭石2.9份、水1.4份。
进一步的,所述背衬、聚氨酯垫片和自发热包上均覆有医用压敏胶。
进一步的,所述温敏型凝胶是由如下对应重量份的物质制成:
25份PLGA-PEG-PLGA聚合物、5份中药浸膏、0.05份黄原胶、0.9份氯化钠、1份尼泊金酯。
进一步的,所述温敏型凝胶的制备方法为:
称量PLGA-PEG-PLGA聚合物,恒温磁力搅拌器上以恒定转速搅拌,直至聚合物均匀分散,然后置于4℃的冰箱中静置5~6d,直至得到无色或淡蓝色透明可自由流动的溶液,然后向其中加入助悬剂黄原胶、絮凝剂氯化钠、尼泊金酯,搅拌均匀后再加入中药浸膏,继续搅拌使之分散均匀后即可。
本发明温敏凝胶的优点:使用前为基质材料与中药浸膏混合均匀的自由流动的液体,接触人体皮肤后转变为半固体凝胶,具有皮肤顺应性好、刺激性小、释放性能良好等优点。温敏凝胶基质—两亲性三嵌段共聚物PLGA-PEG-PLGA具有良好的生物相容性和生物降解性,且缓释效果强于一般的高分子聚合物材料。另外,它的两亲性也能对中药浸膏有一定的增溶作用,有利于改善混悬制剂的分散性。
热巴布优点:凝胶膏配合中医温热疗法,可大大提高中药有效成分透皮吸收率,尤其适用于寒湿及气滞血瘀等中医症侯。
与现有技术相比,本发明的有益效果是:
本发明温敏型凝胶的自发热中药贴膏剂具有透皮吸收率高、含膏量大、含量均匀、黏弹性好、皮肤追随性好等优势,配合中医温热疗法,可大大提高中药有效成分透皮吸收率,尤其适用于寒湿及气滞血瘀等中医症侯。
附图说明
图1为本发明自发热中药贴膏的结构示意图。
图中:1、背衬;2、聚氨酯垫片;3、自发热包。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
请参阅图1,本发明实施例中,一种基于温敏型凝胶的自发热中药贴膏,包括背衬1,背衬1上还设有自发热包3和聚氨酯垫片2,自发热包3热压设于背衬1的正中央,聚氨酯垫片2设于自发热包3的四周外围,将自发热包3包裹;自发热中药贴膏还包括温敏型凝胶。
背衬1是由无纺布或弹力布制成。
自发热包3由外层隔离层和自发热材料组成。
外层隔离层为微孔透气膜无纺布袋。
自发热材料是由如下对应重量份的物质组成:还原铁粉8.6份、活性炭11.4份、氯化钠5.7份、蛭石2.9份、水1.4份。
背衬1、聚氨酯垫片2和自发热包3上均覆有医用压敏胶。
温敏型凝胶是由如下对应重量份的物质制成:
25份PLGA-PEG-PLGA聚合物、5份中药浸膏、0.05份黄原胶、0.9份氯化钠、1份尼泊金酯。
温敏型凝胶的制备方法为:称量PLGA-PEG-PLGA聚合物,恒温磁力搅拌器上以恒定转速搅拌,直至聚合物均匀分散,然后置于4℃的冰箱中静置5~6d,直至得到无色或淡蓝色透明可自由流动的溶液,然后向其中加入助悬剂黄原胶、絮凝剂氯化钠、尼泊金酯,搅拌均匀后再加入中药浸膏,继续搅拌使之分散均匀后即可。
本发明中药贴膏的使用方法是:将温敏型凝胶(液态)涂于所需穴位(涂布大小约5mm*8mm),待温敏凝胶成凝胶后,将上述装有自发热包3的背衬1覆盖其上,这时聚氨酯垫片2会将温敏型凝胶包裹,一方面防止温敏型凝胶外溢流出,另一方面可避免自发热包3直接贴合在皮肤上造成烫伤,最后敷贴24小时后弃去即可。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。

Claims (8)

1.一种基于温敏型凝胶的自发热中药贴膏,包括背衬(1),其特征在于,所述背衬(1)上还设有自发热包(3)和聚氨酯垫片(2),所述自发热包(3)热压设于背衬(1)的正中央,所述聚氨酯垫片(2)设于自发热包(3)的四周外围,将自发热包(3)包裹;所述自发热中药贴膏还包括温敏型凝胶。
2.根据权利要求1所述的一种基于温敏型凝胶的自发热中药贴膏,其特征在于,所述背衬(1)是由无纺布或弹力布制成。
3.根据权利要求1所述的一种基于温敏型凝胶的自发热中药贴膏,其特征在于,所述自发热包(3)由外层隔离层和自发热材料组成。
4.根据权利要求3所述的一种基于温敏型凝胶的自发热中药贴膏,其特征在于,所述外层隔离层为微孔透气膜无纺布袋。
5.根据权利要求3所述的一种基于温敏型凝胶的自发热中药贴膏,其特征在于,所述自发热材料是由如下对应重量份的物质组成:还原铁粉8.6份、活性炭11.4份、氯化钠5.7份、蛭石2.9份、水1.4份。
6.根据权利要求1所述的一种基于温敏型凝胶的自发热中药贴膏,其特征在于,所述背衬(1)、聚氨酯垫片(2)和自发热包(3)上均覆有医用压敏胶。
7.根据权利要求1所述的一种基于温敏型凝胶的自发热中药贴膏,其特征在于,所述温敏型凝胶是由如下对应重量份的物质制成:
25份PLGA-PEG-PLGA聚合物、5份中药浸膏、0.05份黄原胶、0.9份氯化钠、1份尼泊金酯。
8.根据权利要求1所述的一种基于温敏型凝胶的自发热中药贴膏,其特征在于,所述温敏型凝胶的制备方法为:
称量PLGA-PEG-PLGA聚合物,恒温磁力搅拌器上以恒定转速搅拌,直至聚合物均匀分散,然后置于4℃的冰箱中静置5~6d,直至得到无色或淡蓝色透明可自由流动的溶液,然后向其中加入助悬剂黄原胶、絮凝剂氯化钠、尼泊金酯,搅拌均匀后再加入中药浸膏,继续搅拌使之分散均匀后即可。
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CN113318268A (zh) * 2021-05-28 2021-08-31 龙青容 一种多孔自发热改性聚丙烯酰胺凝胶敷料

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