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Analysis of Openwork Knitwear Used for Hernia Mesh Manufacturing

Research and development

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Nr DOI: 10.5604/01.3001.0012.5171

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Abstract:

The paper presents research aimed at the production of mesh implants used in the treatment of abdominal hernias: knitted monofilament fabric, optimal pore diameter min. 75 μm, preferably over 1 mm, mass per unit area – less than 35 g/m2. The influence of differentiation factors on mechanical parameters of the knitted fabrics was analysed. Seven variants were produced varying in the weave, linear mass of yarn and accuracy. The knitted fabrics were subjected to thermal or thermo-mechanical treatment in a two-stage process. The data obtained were analysed using parametric statistical tests. It was shown that in order to obtain an appropriate ratio of surface mass to mechanical strength at the break/size of pores, it is necessary to use a braid which allows to obtain uniformity of the pores. The braid shall be made of low-precision material and of extra linear mass. It is possible to model the strength parameters with the help of the accuracy and/or thermal treatment. The treatment has less influence on the strength parameters. The use of mechanical treatment during thermal stabilisation significantly affects the elasticity of the knitted fabric without having a significant impact on the strength of the knitted fabric.

Tags:

polypropylene, knitted implant, biomaterial, thermal stability, mechanical treatment, accuracy.

Citation:

Draczyński Z, Gajek M, Mikołajczyk Z, Modrzejewska Z, Sujka W. Analysis of Openwork Knitwear Used for Hernia Mesh Manufacturing. FIBRES & TEXTILES in Eastern Europe 2018; 26, 6(132): 77-86. DOI: 10.5604/01.3001.0012.5171

Published in issue no 6 (132) / 2018, pages 77–86.

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