Abstract: The invention relates to a system (1) for transporting fluid across or into a biological barrier, the system comprises a device (10) having a housing with at least one abutment surface for abutting the biological barrier. A capsule is to be received in the housing comprising a substrate (21) from which a plurality of hollow micro needles (22) project and a fluid reservoir (26) which can be brought into fluid communication with the micro needles. According to the invention the capsule comprises a fluid dose and the device comprises a ram (12) arranged movably in the housing for pushing the capsule from a first position to a second position. The ram subsequently proceeds to a third ram position thereby deforming the reservoir for raising the pressure inside the reservoir such that the fluid dose will be transported through the hollow micro needles across or into the biological barrier.

Abstract: The invention relates to a micro needle (1) for transporting fluid across or into a biological barrier. The micro needle comprises a shaft (2) having a hollow channel (3) ending in a tip (4) having a bevel at a predetermined angle. According to the invention the shaft is provided with an indentation (5) starting at the tip and running in longitudinal direction over a part of the outer surface having the shortest shaft length such that the channel has an unround cross section in the tip region. The invention further relates to a method for producing a micro needle according to the invention.