FIELD : medicine.SUBSTANCE : system comprises : a container unit comprising a container for storing said compounds, wherein said container has a circumferential wall, a first end closed by a container bottom and an open second end and wherein said container unit has a longitudinal axis, and a closure element accommodated within said container in fluid-tight contact with said circumferential wall, and an extraction unit comprising a supporting element supported at the closure element and a penetration and discharge means having a hollow needle adapted to penetrate said closure element. Said penetration and discharge means is fitted to the supporting element so as to be movable relatively to the supporting element along the longitudinal axis. Said penetration and discharge means comprises a first link motion portion, and said supporting element comprises a second link motion portion. One of said first link motion portion and said second link motion portion is provided with a projection and the respective other one is provided with a guiding groove; said projection and said guiding groove being engagable to form a link motion adapted to move said penetration and discharge means relative to said supporting element in a predetermined way towards said container bottom thereby to make said hollow needle penetrate said closure element.EFFECT : invention relates to medical equipment, specifically to delivery systems for medical or pharmaceutical compounds.29 cl, 7 dwg