A delivery tool for the implantation of an intracorporeal capsule , comprising an operating handle and a steerable catheter , wherein the catheter comprises an internal tube and an external tube , coaxial to each other, mounted telescopically into each other, with possibilities of mutual rotation and mutual axial translation, the internal tube comprising at least one central lumen extending from a proximal end to a distal end of the catheter, the at least one lumen housing a security wire moving freely in the lumen, the internal tube being coupled in translation and in rotation at its distal end to the intracorporeal capsule , wherein the catheter further comprises, over the length of the external tube , at least one steering cable adapted to undergo a traction exerted from the proximal end of the catheter, wherein the operating handle is mounted at the proximal end of the catheter and comprises: a handle body adapted to be held in hand by an operator, the handle body being coupled to the external tube of the catheter; a piston , axially mobile in rotation and in translation inside the handle body , and coupled in rotation and in translation to the internal tube of the catheter; and a first control mechanism , comprising a bending actuator operable to modify in a controlled manner the tension of the steering cable whereby controlling the steering of the catheter, wherein the traction exerted on at least one steering cable generates in a given plane a bending of a corresponding distal region of the catheter, and said at least one steering cable is offset with respect to the internal tube , and characterised in that said first control mechanism comprises a drum to which is fixed said at least one steering cable for winding said at least one steering cable , and said bending actuator is operable to control a rotation of the drum , whereby modifying in a controlled manner the tension of said at least one steering cable . wherein the catheter further comprises, over the length of the external tube , at least one steering cable adapted to undergo a traction exerted from the proximal end of the catheter, wherein the operating handle is mounted at the proximal end of the catheter and comprises: a handle body adapted to be held in hand by an operator, the handle body being coupled to the external tube of the catheter; a piston , axially mobile in rotation and in translation inside the handle body , and coupled in rotation and in translation to the internal tube of the catheter; and a first control mechanism , comprising a bending actuator operable to modify in a controlled manner the tension of the steering cable whereby controlling the steering of the catheter, a handle body adapted to be held in hand by an operator, the handle body being coupled to the external tube of the catheter; a piston , axially mobile in rotation and in translation inside the handle body , and coupled in rotation and in translation to the internal tube of the catheter; and a first control mechanism , comprising a bending actuator operable to modify in a controlled manner the tension of the steering cable whereby controlling the steering of the catheter, wherein the traction exerted on at least one steering cable generates in a given plane a bending of a corresponding distal region of the catheter, and said at least one steering cable is offset with respect to the internal tube , and characterised in that said first control mechanism comprises a drum to which is fixed said at least one steering cable for winding said at least one steering cable , and said bending actuator is operable to control a rotation of the drum , whereby modifying in a controlled manner the tension of said at least one steering cable . <EOS>