During incorporation the filaments are enclosed by an internal and external granuloma. When filament distance is too small there is a risk that the whole of the intervening space will be filled with scar tissue (closed pores). The scar plates that develop in this way cause patients great discomfort. Sufficiently large pores can prevent this.
How is this prevented? PP implants must have a pore diameter of at least 1 mm in all directions – under loading as well (!) (because of the lower granuloma thickness, just 0.6 mm is sufficient in the case of PVDF) – for the pores to remain open. Only in this way can local autochthonous tissue form through a pore [6,8].
DynaMesh® warp-knitted fabrics provide this prerequisite because of their optimal pore geometry and the high effective porosity* (up to 69 %) achieved through this geometry .
Pelvic Floor Surgery
DynaMesh® warp-knitted fabrics provide this prerequisite because of their optimal pore geometry and the high effective porosity* (up to 70 %) achieved through this geometry .
Textile porosity refers to the permeable component of a mesh before the body has reacted to the implant.
*Effective porosity refers to the permeable component of a mesh after the body has reacted to the implant.
Rule of thumb: A “pore” less than 1 mm in diameter is closed by the body with scar tissue = 0% effective porosity
Excellent Material: PVDF
The filament (“yarn”) we spin from the high-tech polymer PVDF is the first guarantee of the high quality of DynaMesh®products: a filament with many positive “natural” properties. The textile structures warp-knitted from this are the second guarantee. * Klosterhalfen, B., Pathologisches Institut, Krankenhaus Düren and Klinge, U., Universitätsklinikum Aachen «Vergleich von Bakterienadhärenzen» (2010) A comparison […]
Minimally reactive surface
If you want to minimise adverse foreign body reactions and scarring associated with textile implants, besides using biocompatible material you have to provide the least possible contact area. The following formula applies: thread surface = bioreactive surface area of the implant. Our implants have a comparatively minimal reactive surface area, which means that they cause […]
DynaMesh®products are not simply cut from a flat piece of mesh. Using our special warp knitting machines we are able to produce smooth and therefore atraumatic selvedges (no “sawtooth” edges). These “soft” selvedges make it easy for the surgeon to place and adjust the implant – without irritating or even damaging the surrounding tissue. And […]
Hernia surgery Textile implants must reinforce tissue, support muscles and protect organs. They have to cushion different forces without limiting mobility – including the extreme stresses associated with coughing, sneezing and laughing. What is needed therefore is an optimal interaction between predefined stability and elasticity. We achieve the optimal balance between these two properties. Pelvic […]
High tear propagation resistance
Conventional textile implants have a weak point: once torn or cut a zipper effect frequently occurs – the mesh continues to tear (mesh rupture). This does not happen with DynaMesh® products. The multiple meshing technique used in our warp-knitted structures does not allow this unwanted effect to occur in the first place. Tear propagation resistance […]
visible in MRI
DynaMesh® visible – A better internal view without risk During MRI scans, in imaging terms the part of the body being analysed is scanned step by step and deconstructed into many “wafer-thin optical slices”. At the end, these “slices” are reconstructed to form 3-dimensional images or motion sequences (remodelling): The position of the DynaMesh® visible […]