The present invention relates to a device designed to extract and collect blood from the placenta and/or umbilical cord, through a system that combines collecting said blood as it falls by the effect of gravity, together with a suction system (5) that facilitates said fall. The invention allows a greater amount of blood to be extracted than that obtained using conventional gravity methods, without entailing any risk to the mother's health, thereby allowing a controlled suction that prevents premature expulsion of the placenta.