Stress adapted embroidered meshes with a graded pattern design for abdominal wall hernia repair

17th World Textile Conference AUTEX 2017 - Shaping the Future of Textiles

Hahn, J.^1 ; Bittrich, L.^1 ; Breier, A.^1 ; Spickenheuer, A.^1

Leibniz-Institut für Polymerforschung Dresden E. V., Institute of Polymer Materials, Department of Composite Materials, Hohe Str. 6, Dresden

01069, Germany^1

关键词: Abdominal wall hernia;    Anisotropic behaviours;    Fabrication method;    Mechanical behaviour;    Mechanical characteristics;    Pattern generator;    Reinforcement patterns;    Stress strain behaviours;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/254/6/062005/pdf
DOI  :  10.1088/1757-899X/254/6/062005

来源: IOP

【 摘 要 】

Abdominal wall hernias are one of the most relevant injuries of the digestive system with 25 million patients in 2013. Surgery is recommended primarily using allogenic non-absorbable wrap-knitted meshes. These meshes have in common that their stress-strain behaviour is not adapted to the anisotropic behaviour of native abdominal wall tissue. The ideal mesh should possess an adequate mechanical behaviour and a suitable porosity at the same time. An alternative fabrication method to wrap-knitting is the embroidery technology with a high flexibility in pattern design and adaption of mechanical properties. In this study, a pattern generator was created for pattern designs consisting of a base and a reinforcement pattern. The embroidered mesh structures demonstrated different structural and mechanical characteristics. Additionally, the investigation of the mechanical properties exhibited an anisotropic mechanical behaviour for the embroidered meshes. As a result, the investigated pattern generator and the embroidery technology allow the production of stress adapted mesh structures that are a promising approach for hernia reconstruction.