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2015 ; 8
(12
): 8148-8168
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Physical Characteristics of Medical Textile Prostheses Designed for Hernia
Repair: A Comprehensive Analysis of Select Commercial Devices
#MMPMID28793704
Miao L
; Wang F
; Wang L
; Zou T
; Brochu G
; Guidoin R
Materials (Basel)
2015[Dec]; 8
(12
): 8148-8168
PMID28793704
show ga
Inguinal hernia repairs are among the most frequent operations performed
worldwide. This study aims to provide further understanding of structural
characteristics of hernia prostheses, and better comprehensive evaluation.
Weight, porosity, pore size and other physical characteristics were evaluated;
warp knitting structures were thoroughly discussed. Two methods referring to ISO
7198:1998, i.e., weight method and area method, were employed to calculate
porosity. Porosity ranged from 37.3% to 69.7% measured by the area method, and
81.1% to 89.6% by the weight method. Devices with two-guide bar structures
displayed both higher porosity (57.7%-69.7%) and effective porosity (30.8%-60.1%)
than single-guide bar structure (37.3%-62.4% and 0%-5.9%, respectively). Filament
diameter, stitch density and loop structure combined determined the thickness,
weight and characteristics of pores. They must be well designed to avoid zero
effective porosity regarding a single-bar structure. The area method was more
effective in characterizing flat sheet meshes while the weight method was perhaps
more accurate in describing stereoscopic void space for 3D structure devices.
This article will give instructive clues for engineers to improve mesh
structures, and better understanding of warp knitting meshes for surgeons.