Spongy material consisting essentially of hyaluronic acid or its derivatives, and its use in microsurgery

摘要: The present invention relates to a new spongy material consisting essentially of hyaluronic acid or its derivatives. characteristics the pharmaceutical preparations consist in assuring high concentrations active principle for long period time, by exploiting slow release principle. can be utilized advantageously all numerous situations microsurgical practice (in particular ones relating ear odontostomatology), which it is necessary use substance that metabolized organism and capable making easier flap take, reepithelialization mucous membranes, stabilization grafts filling cavities. specific particularly important useful various pathologies otologic, otoneurosurgical odontostomatological microsurgery, such as instance repair tympanic perforations.