Sterile blood bag system for the extraction and cryopreservation of umbilical cord blood, comprising as components at least one puncture piece (1), a combined mixing and freezing bag (2) and an inlet member (4), the individual components of the blood bag system communicating with each other via connecting lines (8) in which the individual components of the blood bag system are separable from each other in a sterile manner by separating devices (5), characterized in that a reservoir region (3) is interposed between the puncture piece (1) and the mixing and freezing bag (2), characterized in that the reservoir region (3) is directly and rectilinearly integrated into the main connecting line (12) connecting the puncture piece (1) and the combined mixing and freezing bag (2) and wherein the reservoir region (3) is formed as a sachet (3 ') is.Buluş, kendi içinde kapalı, steril bir kan torbası sistemine ilişkin olup, göbek kordonu kanının tıbbi olarak alınması ve dondurularak saklanması içindir. Steril kan torbası sistemi şu bileşenleri içerir: en az bir ponksiyon parçası (1), kombine bir karıştırma ve dondurma torbası (2) ve bir çıkış elemanı (4).
