用磁控药物输送囊内镜进行非侵入性药物输送的新方案
Weijun Wang1, Kun Zhang1, Fanhua Ming2
1Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
概括
一种新的磁控药物输送囊内镜 (MDCE) 能够精确治疗胃肠道疾病. 该系统准确地将药物输送到目标部位,在临床前模型中显著减少受伤和出血.
科学领域:
- 胃肠病学 胃肠病学
- 生物医学工程 生物医学工程
- 药物输送系统 药物输送系统
背景情况:
- 胃肠道疾病缺乏有效的精确药物输送方法.
- 传统的治疗方法往往导致非目标效应和有限的疗效.
- 对于有针对性的治疗干预,需要先进的内镜工具.
研究的目的:
- 开发和评估一种磁控药物递送囊内镜 (MDCE),用于精确地在胃肠道递送药物.
- 评估MDCE在实时可视化和磁控下准确准病变和输送药物的能力.
- 在肠道损伤和出血的临床前模型中验证MDCE的治疗疗效.
主要方法:
- 药物输送系统与囊内镜的集成,配有用于药物喷雾的电动.
- 利用卷积神经网络 (CNN) 模型用于病变检测和自动药物释放启动.
- 使用外部磁铁实时控制囊的姿势和药物输送方向.
- 使用肠上皮损伤和出血的猪模型进行验证,并直接可视化以评估准确性.
主要成果:
- 在直接可视化下,MDCE成功地展示了精确的,磁性控制的药物输送到目标地点.
- 在猪模型中,使用MDCE治疗显著减少了受伤区域,因为产生了有机体 (48mm2对21mm2,p=0.018).
- 通过向猪肠道出血部位喷诺阿基尼林 (norepinephrine),MDCE显著减少了出血时间 (731秒对418秒,p=0.007).
结论:
- 磁控药物递送囊内镜 (MDCE) 提供了一种新的,非侵入性的方法,用于在肠道中精确的药物递送.
- 在磁控下,MDCE能够在实时视觉反下,有效准确地释放药物.
- 这项技术代表了胃肠道疾病的精确治疗和系统性疾病的口服药物管理的重大进步.
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