可喷的水凝密封剂用于胃肠道伤口屏蔽
Gonzalo Muñoz Taboada1,2, Daniel Dahis1, Pere Dosta3,4,5
1BioDevek, Boston, MA, 02134, USA.
Advanced materials (Deerfield Beach, Fla.)
|February 29, 2024
概括
一种新的喷式水凝为胃肠病变提供了持续的粘合盾,大大减少了手术后出血和穿孔等延迟并发症.
科学领域:
- 生物材料科学 生物材料科学
- 胃肠病学 胃肠病学
- 医疗器械 医疗器械
背景情况:
- 延迟的不良事件,包括出血和穿孔,发生在胃肠道手术后5-7天.
- 目前的静血剂对胃肠粘膜组织的粘附性有限 (不到48小时).
- 现有的解决方案不足以有效地管理手术内和手术后的并发症.
研究的目的:
- 开发和评估一种用于消化道 (GI) 病变管理的新型喷涂粘液水凝.
- 评估水凝能够提供持续粘附和组织保护的能力.
- 确认水凝在预防延迟术后并发症方面的安全性和有效性.
主要方法:
- 开发一种可喷的生物材料前体 (聚乙烯胺基改性Pluronic和氧化德克斯),在接触时立即凝结.
- 使用临床上可用的内镜将水凝应用到胃肠道病变中,以轻松地传递.
- 在动物模型 (海豚,子,猪) 中进行体外和体内测试,以评估对结肠和胃病变的安全性,粘附性和有效性.
主要成果:
- 可喷的水凝证明了即时凝,并在胃肠道组织上形成了强大的粘合盾.
- 在体内研究证实了生物材料在结肠和酸性胃病变模型中的安全性和有效性.
- 水凝提供了长时间的组织保护,持续3-7天,并促进了伤口愈合.
结论:
- 开发的水凝为胃肠道伤口管理提供了一个有希望的,易于采用的解决方案.
- 这项技术通过提供持续的组织保护,有效地降低了延迟并发症的风险.
- 可喷粘合剂水凝代表了内镜干预和胃肠道病变护理的重大进展.
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