The present invention relates to a delivery system (10) for delivering medical or pharmaceutical compounds, which delivery system (10) comprises (a) a container unit (1000) with (a-a) a container (1100) for storing the compounds, wherein the container (1 100) has a circumferential wall (1102), a first end closed by a container bottom (1104) and an open second end, and wherein the container unit (1100) has a longitudinal axis (A), and (a-b) a closure element (1200) accommodated within the container (1100) in a fluid-tight contact with the circumferential wall (1104), and (b) an extraction unit (2000) comprising a supporting element (2150) supported at the closure element (1200) and a penetration and discharge means (2100) having a hollow needle (2122) adapted to penetrate the closure element (1200). The penetration and discharge means (2100) is fitted to the supporting element (2150) so as to be movable relatively to the supporting element (2150) along the longitudinal axis (A). Further, the penetration and discharge means (2100) comprises a first link motion portion (2112), and the supporting element (2150) comprises a second link motion portion (2118), wherein one of the first link motion portion (2112) and the second link motion portion (2118) is provided with a projection (2132) and the respective other one is provided with a guiding groove (2130), the projection (2132) and the guiding groove (2130) being engageable with each other to form a link motion adapted to make the penetration and discharge means (2100) move relatively to the supporting element (2150) in a predetermined way towards the container bottom (1104) thereby to make the hollow needle (2122) penetrate the closure element (1200).La présente invention concerne un système dadministration (10) permettant dadministrer des composés médicaux ou pharmaceutiques, lequel système dadministration (10) comprend (a) une unité récipient (1 000) comportant (a-a) un récipient (1 100) permettant de stocker les comp