Abstract: An apparatus for direct blood transfusion which comprises two needles with tubes connected thereto. One needle is introduced into the donor's blood system, while the other into the recipient's blood system. In order to provide for the delivery of blood from the donor to the recipient via said tubes, the apparatus is equipped with a vessel containing a medicamental liquid compatible with blood and mounted at a height sufficient for creating a hydrostatic head of the medicamental liquid exceeding the blood pressure in the recipient's vasculature. The apparatus also comprises a distributing means built around at least four proportioning vessels vertically mounted in a housing and rigidly coupled therewith. The housing is disposed between the upper and lower disks of a stator in coaxial relationship therewith. The housing is made rotatable in one direction with respect to the stator. The upper disk and the lower disk of the stator each have at least four holes formed therein.