微创电动吻合器的创新结构设计与功能验证
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国家自然科学基金项目(51735003),上海市科委项目(18441900200)


Structural Design and Verification of a Novel Electric Stapler for Minimally Invasive Surgery
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    摘要:

    目的 研制一种新型电动吻合器,提高微创外科手术的自动化程度、便捷性和精准性。方法 在传统机械吻合器的基础上,创新设计新型电动吻合器的压榨、击发与转弯机构,实现微创外科吻合手术的电动驱动。详细分析电动压榨、击发与双螺旋转弯机构的运动过程,求解3个机构的运动函数方程式,为电动吻合器的智能控制算法提供理论基础。结果 利用ADAMS软件对电动压榨与击发过程进行仿真,验证运动方程。制作出新型电动吻合器的样机,进行离体小肠组织的吻合实验和爆破压实验,吻合口爆破压为3.7~11.67 kPa,符合临床基本要求。结论 新型电动吻合器的结构设计可以满足微创外科手术中电动压榨和击发等要求,有助于医生更加便捷、快速、有效地实现组织吻合。

    Abstract:

    Objective To develop a novel electric stapler, so as to improve the automation, convenience and precision of minimally invasive surgery. Methods The clamping, firing and turning mechanism of the new electric stapler was innovatively designed to realize the electric drive of minimally invasive surgical anastomosis on the basis of traditional mechanical stapler. The motion process of electric clamping, firing and double-screw turning mechanism was analyzed in detail, and the equations for motion function of three mechanisms were solved, providing a theoretical basis for the intelligent control algorithm of electric stapler. Results The electric clamping and firing process was simulated using ADAMS software to verify the equation of motion. The prototype of the new electric stapler was made, and the anastomosis experiment and blasting pressure experiment of the in vitro small intestine tissues were carried out. The range of anastomotic blasting pressure was between 3.7 kPa and 11.67 kPa, meeting the basic requirements in clinic. Conclusions The structure of the new electric stapler can meet the requirements of electric pressing and firing in minimally invasive surgery, contributing to achieve tissue anastomosis more conveniently, quickly and effectively.

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刘晨旭,宋成利,周宇,毛琳,葛文明,王佩瑶,陈力.微创电动吻合器的创新结构设计与功能验证[J].医用生物力学,2019,34(6):631-636

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  • 收稿日期:2018-10-19
  • 最后修改日期:2019-01-02
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  • 在线发布日期: 2019-12-25
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