The present invention relates to a single lumen vascular catheter (1) to be inserted into a blood flow channel for the injection of a product by the venous or arterial route comprising a tube (2) having a hollow longitudinal body with a lumen (3) the lumen (3) extending along the full length of the tube (2) and being intended to permit the injection of a given volume (4) of product at a prescribed flow rate the tube (2) having lateral orifices (5) which are of substantially identical size and are arranged in the longitudinal body substantially symmetrically about the longitudinal axis near a distal end (6) of the tube (2) an end surface (7) at the distal end (6) of the tube (2) reducing a total surface area of the lumen (3) starting from the distal end (6) of the tube (2).
