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Preparation and biocompatibility evaluation of polypropylene mesh coated with electrospinning membrane for pelvic defects repair
Journal of the Mechanical Behavior of Biomedical Materials ( IF 3.9 ) Pub Date : 2018-02-28 , DOI: 10.1016/j.jmbbm.2018.02.030
Yao Lu , Shaoju Fu , Shuanglin Zhou , Ge Chen , Chaoting Zhu , Nannan Li , Ying Ma

Composite mesh with different materials composition could compensate for the drawbacks brought by single component mesh. Coating a membrane layer on the surface of macroporous mesh is a common method for preparing composite medical mesh. Electrospinning and dipping methods were introduced to form the two kinds of membrane-coated PP meshes (electro-mesh and dip-mesh); several properties were measured based on subcutaneous implantation model in rat. The results revealed that continuous tissue ingrowth could be observed for electro-mesh only with evidences of strength increase (electro-mesh: 0 week − 13.1 ± 0.88 N, 2 week − 16.87 ± 1.39 N, 4 week − 22.04 ± 2.05 N) and thickness increase (electro-mesh: 0 week − 0.437 ± 0.023 mm, 2 week − 0.488 ± 0.025 mm, 4 week − 0.576 ± 0.028 mm). However, no tissues were observed for dip-mesh in the first 2 weeks, both on macroscopic level and microscopic level, proved by strength data (dip-mesh: 0 week − 13.36 ± 1.06 N, 2 week − 13.4 ± 1.33 N, 4 week – 18.61 ± 1.89 N) and thickness data (dip-mesh: 0 week − 0.439 ± 0.018 mm, 2 week − 0.439 ± 0.019 mm, 4 week − 0.502 ± 0.032 mm). Electro-mesh had larger surface area decrease (10.74 ± 1.22%) than that of dip-mesh (2.78 ± 0.52%). The adhesion level of electro-mesh (medium adhesion) was also higher than that of dip-mesh (mild adhesion). Even if showing differences in several properties, both meshes were similar under histological observation, with the ability to support fresh tissues ingrowth. Considering operation environment, electro-mesh seems more suitable than dip-mesh with a rapid tissue growing, medium adhesion rate for repairing pelvic floor defects.



中文翻译:

静电纺丝膜包覆聚丙烯网修复骨盆缺损的制备及生物相容性评价

具有不同材料成分的复合网可以弥补单组分网带来的弊端。在大孔网眼的表面涂覆膜层是制备复合医用网眼的常用方法。引入静电纺丝和浸涂方法以形成两种膜包被的PP网(电网和浸网)。在大鼠的皮下植入模型的基础上测量了几种性能。结果表明,仅在具有强度增加的证据的情况下,才能观察到连续的内向生长的组织(电子网:0周− 13.1±0.88 N,2周− 16.87±1.39 N,4周− 22.04±2.05 N),并且厚度增加(电网:0周− 0.437±0.023 mm,2周− 0.488±0.025 mm,4周− 0.576±0.028 mm)。但是,在头2周内未观察到任何组织浸入网孔,在宏观和微观两个层面上,均通过强度数据(浸入网:0周− 13.36±1.06 N,2周− 13.4±1.33 N,4周– 18.61±1.89 N)和厚度数据(浸入网:0)证明周-0.439±0.018毫米,2周-0.439±0.019毫米,4周-0.502±0.032毫米)。电网的表面积减小量(10.74±1.22%)比浸网的表面积减小量(2.78±0.52%)大。电网的粘附水平(中等粘附力)也高于浸渍网的粘附水平(轻度粘附力)。即使在几个特性上显示出差异,在组织学观察下,两个网也是相似的,并具有支持新鲜组织向内生长的能力。考虑到手术环境,电网似乎比浸入网更合适,因为网状组织快速生长,中等粘着率可修复骨盆底缺损。由强度数据(浸入网:0周− 13.36±1.06 N,2周− 13.4±1.33 N,4周-18.61±1.89 N)和厚度数据(浸入网:0周− 0.439±0.018 mm,2)证明周-0.439±0.019毫米,4周-0.502±0.032毫米)。电网的表面积减小量(10.74±1.22%)比浸网的表面积减小量(2.78±0.52%)大。电网的粘附水平(中等粘附力)也高于浸渍网的粘附水平(轻度粘附力)。即使在几个特性上显示出差异,在组织学观察下,两个网也是相似的,并具有支持新鲜组织向内生长的能力。考虑到手术环境,电网似乎比浸入网更合适,因为网状组织快速生长,中等粘着率可修复骨盆底缺损。由强度数据(浸入网:0周− 13.36±1.06 N,2周− 13.4±1.33 N,4周-18.61±1.89 N)和厚度数据(浸入网:0周− 0.439±0.018 mm,2)证明周-0.439±0.019毫米,4周-0.502±0.032毫米)。电网的表面积减小量(10.74±1.22%)比浸网的表面积减小量(2.78±0.52%)大。电网的粘附水平(中等粘附力)也高于浸渍网的粘附水平(轻度粘附力)。即使在几个特性上显示出差异,在组织学观察下,两个网也是相似的,并具有支持新鲜组织向内生长的能力。考虑到手术环境,电网似乎比浸入网更合适,因为网状组织快速生长,中等粘着率可修复骨盆底缺损。89 N)和厚度数据(浸入式筛网:0周-0.439±0.018毫米,2周-0.439±0.019毫米,4周-0.502±0.032毫米)。电网的表面积减小量(10.74±1.22%)比浸网的表面积减小量(2.78±0.52%)大。电网的粘附水平(中等粘附力)也高于浸渍网的粘附水平(轻度粘附力)。即使在几个特性上显示出差异,在组织学观察下,两个网也是相似的,并具有支持新鲜组织向内生长的能力。考虑到手术环境,电网似乎比浸入网更合适,因为网状组织快速生长,中等粘着率可修复骨盆底缺损。89 N)和厚度数据(浸入式筛网:0周-0.439±0.018毫米,2周-0.439±0.019毫米,4周-0.502±0.032毫米)。电网的表面积减小量(10.74±1.22%)比浸网的表面积减小量(2.78±0.52%)大。电网的粘附水平(中等粘附力)也高于浸渍网的粘附水平(轻度粘附力)。即使在几个特性上显示出差异,在组织学观察下,两个网也是相似的,并具有支持新鲜组织向内生长的能力。考虑到手术环境,电网似乎比浸入网更合适,因为网状组织快速生长,中等粘着率可修复骨盆底缺损。52%)。电网的粘附水平(中等粘附力)也高于浸渍网的粘附水平(轻度粘附力)。即使在几个特性上显示出差异,在组织学观察下,两个网也是相似的,并具有支持新鲜组织向内生长的能力。考虑到手术环境,电网似乎比浸入网更合适,因为网状组织快速生长,中等粘着率可修复骨盆底缺损。52%)。电网的粘附水平(中等粘附力)也高于浸渍网的粘附水平(轻度粘附力)。即使在几个特性上显示出差异,在组织学观察下,两个网也是相似的,并具有支持新鲜组织向内生长的能力。考虑到手术环境,电网似乎比浸入网更合适,因为网状组织快速生长,中等粘着率可修复骨盆底缺损。

更新日期:2018-02-28
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