Abstract: Microfluidic flow cells for analyzing or diagnosing biofilms and cell cultures. The microfluidic flow cells comprise a support plate with a sample chamber formed therein, which is peripherally limited by chamber walls and a bottom, a cover plate which can be connected to the support plate in a fluid-tight manner, an inlet with an integrated inlet channel, which leads to the sample chamber via an opening, a drain with an integrated drain channel. Holding elements for fixing the support plate to a microscope stage or a holding device are attached to the front sides of the support plate. The invention further relates to systems and their use for analyzing and diagnosing biofilms and cell cultures using these microfluidic flow cells.

Abstract: A catheter for administering medication into the endolymphatic sacs of the cochlea of the inner ear in humans, through at least one membrane of the inner ear. The catheter is designed with at least one outflow aperture at one end for the medication being administered and with an anchoring element. A medication dosage system can be connected to the other end of the catheter. The outflow aperture can be fed through the membrane of the inner ear and the anchoring element is designed so that it can anchor itself against this membrane.

Abstract: A catheter for administering medication into the endolymphatic sacs of the cochlea of the inner ear in humans, through at least one membrane of the inner ear. The catheter is designed with at least one outflow aperture at one end for the medication being administered and with an anchoring element. A medication dosage system can be connected to the other end of the catheter. The outflow aperture can be fed through the membrane of the inner ear and the anchoring element is designed so that it can anchor itself against this membrane.