Shaped implants in human medicine made from polyurethanes with ester links that are small enough to be hydrolysed and reabsorbed by the human body

摘要

Shaped bodies for use as implants in human and veterinary medicine as pins, screws, discs, ligament fixtures and the like. The shaped bodies consist of polyurethanes having ester links which can be hydrolysed in a human body and which give hydrolysis fragments which are sufficiently small to be reabsorbed in the human body. The shaped bodies are characterised in that the polymer is a network polymer which substantially lacks urea groups. Also described is a method for the production of the shaped bodies which means that a suitable starting mixture according to the invention is introduced in moulds and cured at a temperature of 70-150°C in the absence of catalysts and at a temperature of 30-100°C in the presence of a catalyst.