基于磁吻合技术的消化道吻合器的研制

The Development of Anastomat of Digestive Tract Based on the Magnetic Compressive Technique

该文介绍一种基于磁吻合技术与机械传动相结合的消化道吻合器的设计及其工作原理。该吻合器由枪头与枪身组成。枪头是可以更换的,分为近端和远端两部分。枪头近端可以固定到枪身上,远端用于做荷包包埋。实现吻合的操作流程与钉式吻合器类似,最终通过枪头内的一对磁环实现消化道磁吻合。该装置的优点在于将磁吻合技术与机械传动技术联合,实现磁吻合操作的简化,使磁吻合安全、可靠、无缝线、无异物残留等优点得以突出,有利于磁吻合技术的临床应用推广。同时枪身可以反复使用,枪头可以更换;有利于降低医疗成本、节省医疗资源;而磁环排出体外,体内无金属物残留,也能使患者受益最大化。

A new anastomat for digestive tract operations, based on the magnetic compressive technique and mechanical transmission mechanism, is composed of a removable head and a reusable body. The head includes two parts： the proximal end can be fixed to the body, and the distal end could be used for performing a purse string suture. The procedure of anastomosis is similar to that of the stapler, and the anastomoses is established using a pair of magnetic rings. The instrument makes magnamosis more simple and feasible, and it would facilitate the clinical applicaion. The body of the anastomat is reusable and the head could be replaced according to the clinical scenarios, these could reduce the medical cost. The magnetic rings would be excreted with the feces, and there is no foreign body response at last.