| 杜妍莹,卢 强,马 锋,吕 毅,严小鹏.磁导航技术辅助麦芒仿生鼻肠营养管的设计和初步实验研究[J].,2019,19(13):2583-2586 |
| 磁导航技术辅助麦芒仿生鼻肠营养管的设计和初步实验研究 |
| Design and Preliminary Experimental Study on Magnetic Navigation Technique Assisting Bionic Naso-enteral Nutrition Tube of Wheat Awns |
| 投稿时间：2018-12-30 修订日期：2019-01-25 |
| DOI：10.13241/j.cnki.pmb.2019.13.042 |
| 中文关键词: 磁外科 磁导航技术 鼻空肠营养管 仿生 |
| 英文关键词: Magnetic surgery Magnetic navigation technique Naso-enteral nutrition tube Bionic |
| 基金项目:国家自然科学基金项目（81700545，81470896）；中央高校基本科研业务费专项资金项目(xjj2018jchz14)；陕西省自然科学基础研究计划项目（2017JQ8021） |
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| 中文摘要: |
| 摘要 目的：为解决现有液囊鼻肠营养管置管过程中漂浮时间长、成功率低的问题，设计了基于磁导航技术辅助的磁性麦芒仿生鼻肠营养管。方法：分析了麦芒在管腔内能够快速单向移动的力学原理，结合磁外科相关技术，提出了鼻肠管头端内嵌磁性麦芒仿生结构设计方案和磁导航技术辅助快速推进的操作方法，并在体内外模拟了其运动情况。结果：体外管路模拟实验提示麦芒仿生结构在外力作用下能够快速移动。家兔肠道实验显示，磁性麦芒仿生结构在导航磁体引导下，能够在肠道内快速单向移动。结论：磁性麦芒仿生结构在导航磁体的引导下能够实现消化道内快速单向移动，该设计进一步优化有望用于临床。 |
| 英文摘要: |
| ABSTRACT Objective: In order to overcome the disadvantages of long floating time and low success rate in the course of tube placement, a magnetic bionic naso-intestinal nutrition tube of wheat awns based on magnetic navigation technique was designed. Methods: This paper analyzed the mechanics principle of wheat awns moving rapidly and unidirectionally in the lumen. Combined with the related technology of magnetic surgery, the design scheme of magnetic wheat awns bionic structure at the head end of nose and intestine tube and the operation method assisted by magnetic navigation technique are put forward. The motion was simulated in vivo and in vitro. Results: In vitro tube simulation experiments showed that the bionic structure of wheat awns could move rapidly under external force. The intestinal tract experiments in rabbits suggest that the magnetic wheat awns bionic structure can move rapidly in the intestinal tract under the guidance of the navigation magnet. Conclusion: The magnetic wheat awns bionic structure can realize the fast-single movement in the digestive tract under the guidance of the navigation magnet. This design is expected to be further optimized for clinical use. |
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