The vascular prosthesis or patches of biocompatible polyurethane and a method for the improvement of the e - module of these workpieces

摘要

The invention relates to a vessel prosthesis or made from biocompatible polyurethane with a microporous, finely-fibrillated structure and a method for improving the e - module of the said vessel prostheses or patches. According to the invention, the vessel prostheses or patches a final stretch-forming (stretching) with an expansion degrees between 30% and subjected to 250% and subsequent return.