saett at lufta mellanoerat medelst i i oerats trumhinna applicerbar ventilationstub, ventilationstub foer utfoerande av saettet jaemte anvaendning av i dylik ventilationstub.

摘要

Ventilation tube without protruding flanges, intended for ventilation and drainage of the middle ear by temporary implantation into the tympanic membrane, said tube having a micro-pitted titanium exterior surface with at least a number of micro-pits with a diameter of about 2 - 20 micrometer and a depth of 5 - 80 micrometer, as well as method and use of such ventilation tube.