introduction
introduction
Textile has swept over new fields in the last three decades, specially in medicine , where appeared new using for textile depending on joining between science of textile engineering and medicine science which named as medical textile . The expression medical textiles refers to fabrics used in all medicine fields , including general uses as apparel of physicians , nurses and patients , to special uses including fabrics used in heart prostheses which is considered a very important application of medical textiles . Where a lot of people suffer from problems with their hearts, leading them to be in desperate need for heart prosthesis surgeries, such as reconstruction and changing of heart valves, holes patching and vascular (arteries and veins) replacement, as a result of arteries sclerosis or occlusion of mitral valve …etc. Also currency of rheumatic fever, resulting from frequent hurt of germs to throat, especially in childhood stage, has a very bad effect on heart valves. In all mentioned cases, the treatment is only by using heart prostheses by replacing or patching the defected organs replacing or patching is done by using either a natural or synthetic prosthesis .The natural surrogate appear to use tissues from human and animals cells which were taken from the epicardium or the indusium of heart and veins of leg, but the defect of theses surrogates cause occurrence of fatty tumor or sedimentation on them. Synthetic and mineral surrogates are now available, where mineral surrogates are used in valves whereas textiles surrogates are used in patching hoes of the heart and arteries but using of them is still under research and studies in order to develop them .
