软组织吻合器手术缝钉排列优化设计

doi:10.3969/j.issn.0258-8021. 2015. 06.015

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Abstract Staple configuration is one of the important factors that have impacts on the effects of stapling anastomosis. According to staplertissue interaction on the surgery with stapling technology, we proposed an optimized model based on the staple configuration in this study. Firstly, the mechanical model of stapletissue interaction was analyzed, and the simplified finite element model was established based on the mechanical model. Furthermore, the optimized model was established in the case of vascular stapling surgery, and staple row and row space were chosen to be design variables, and the magnitude and distribution of radial stress on the surface of soft tissue were regarded as objective function. At last, the regularities of radial stress magnitude and distribution of soft tissue were obtained by the statistical methods based on finite element simulation experiments. Results showed that when staple row was 3 and row space was 1.25 mm, the average of radial stress was 0.056 3 MPa and the difference of stress distribution was 0.138 5 MPa,and the vascular stapling surgery achieved the optimal effect. The results provide important reference for decreasing complications of stapling surgery and optimal design of staplers.

Key words： stapler mechanical suture staple configuration optimization finite element simulation

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	Li Jinhua¹Yang Yingkan¹Zhang Linan^2*Li Jianmin¹Wang Shuxin^1

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Li Jinhua¹Yang Yingkan¹Zhang Linan^2*Li Jianmin¹Wang Shuxin^1
. Staple Configuration Optimal Design of Soft Tissue Anastomosis with Stapler[J]. journal1, 2015, 34(6): 743-751.

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http://cjbme.csbme.org/EN/10.3969/j.issn.0258-8021. 2015. 06.015 OR http://cjbme.csbme.org/EN/Y2015/V34/I6/743

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