| abstract |
The invention relates to microporous tubular structures the wall of which is composed of a mixture of, on the one hand, a matrix of a (co)polymer having elastomer properties at body temperature and, on the other hand, a (co)polymer which is incorporated in said matrix and which is crystalline at body temperature or has a glass transition temperature of at least 37 °C with the proviso that mixtures of, on the one hand, polyester-urethanes or polyether-urethanes and, on the other hand, poly (lactic acid) are excluded. These tubular structures may be used as blood vessel prostheses. |