| abstract |
For application of active substances to a wound surface a porous padding ( 12 ) is provided upon the wound ( 10 ), which is sealingly covered over with a foil ( 14 ). A fluid active substance is introduced into the padding ( 12 ) via a supply line ( 22 ) and is then suctioned out of the padding ( 12 ) via a removal line ( 26 ). Closure mechanisms ( 32, 34 ) control the introduction of the active substance and the suctioning off of the active substance in the manner, that the active substance after being introduced remains for a predetermined dwell time in the padding ( 12 ), before it is suctioned off. After the suctioning off the vacuum in the padding ( 12 ) is maintained for a certain time period, before renewed introduction of the active substance. The opening of the closure mechanisms ( 32, 34 ) are temporally controlled to occur slowly. |