The invention is a blunt ended echogenic transforaminal cannula and it can be characterized as the presence of injection first outlet hole (4) and injection second outlet hole (5) on the angled end (2), presence of injection first outlet hole (4) and injection second outlet hole (5) on different directions of the angled end (2) surface, presence of injection first outlet hole (4) and injection second outlet hole (5) opposite of each other on the angled end (2) surface, presence of injection first outlet hole (4) and injection second outlet hole (5) opposite and transvers to each other on the angled end (2) surface, presence of injection first outlet hole (4) and injection second outlet hole (5) opposite of each other on the angled end (2) surface and in different distances from the closed cannula end (3), inclusion of a closed cannula end (3), presence of transforaminal needle marking lines with 10 mm intervals on the cannula (1), the closed cannula end (3) (not sharp) has a blunt end structure, the angled end (2) is 168,05° relative to the cannula (1), deformation of the cannula (1) surface with a custom made abrasive called grit, crashing of abrasives in the slurry to the cannula (1) with high speed by means of an assembly that has low amplitude and vibrates in high frequency, abrasion of the metal surface in micron level and application of ultrasonic cleaning thereafter.Linvention concerne une canule transforaminale échogène à extrémité mousse et présentant un premier trou de sortie dinjection (4) et un second trou de sortie dinjection (5) sur une extrémité coudée (2), le premier trou de sortie dinjection (4) et le second trou de sortie dinjection (5) étant orientés dans des directions différentes sur la surface de lextrémité coudée (2), le premier trou de sortie dinjection (4) et le second trou de sortie dinjection (5) étant opposés lun à lautre sur la surface de lextrémité coudée (2), le premier trou de sortie dinjection (4) et le second trou de sortie dinjecti
