A catheter applicator comprising - two catheter catching members (1, 2) symmetrically separated with respect to a central axis and configured for cooperatively coupling to a catheter proximal portion; wherein the applicator further comprises: - two clamping members (3, 4) symmetrically separated with respect to the central axis adapted to clamp the applicator and attached to respective catheter catching members (1, 2) by respective first ends of the clamping members (3, 4) through force transmission branches such that a third-class lever is provided in which the clamping members are power arms of said third class lever, the bearing surface is a fulcrum of said third class lever and in use when a catheter is caught by the catching members (1, 2), the catheter is the resistance; - wherein the force transmission branches form an angle between 70° and 110° with respect to the central axis and allow a pressing force on the clamping members (3, 4) to be transmitted to the catheter catching members (1, 2) and on a catheter caught by the catching members; - a bearing surface joined to respective second ends of the clamping members (3, 4), said bearing surface forming an angle between 70° and 110° with respect to the central axis, such that, following the central axis, the clamping members (3, 4) are comprised between the catheter catching members (1, 2) and the bearing surface; and - at least one gripping flap between the clamping members (3, 4) and the bearing surface; wherein the bearing surface and the clamping members (3, 4) cooperate to allow the catheter catching members (1, 2) to be brought closer together so as to allow a catheter to be caught and to allow the catheter catching members (1, 2) to move away from each other so as to permit a catheter to be released. - two catheter catching members (1, 2) symmetrically separated with respect to a central axis and configured for cooperatively coupling to a catheter proximal portion; - two clamping members (3, 4) symmetrically separated with respect to the central axis adapted to clamp the applicator and attached to respective catheter catching members (1, 2) by respective first ends of the clamping members (3, 4) through force transmission branches such that a third-class lever is provided in which the clamping members are power arms of said third class lever, the bearing surface is a fulcrum of said third class lever and in use when a catheter is caught by the catching members (1, 2), the catheter is the resistance; - wherein the force transmission branches form an angle between 70° and 110° with respect to the central axis and allow a pressing force on the clamping members (3, 4) to be transmitted to the catheter catching members (1, 2) and on a catheter caught by the catching members; - a bearing surface joined to respective second ends of the clamping members (3, 4), said bearing surface forming an angle between 70° and 110° with respect to the central axis, such that, following the central axis, the clamping members (3, 4) are comprised between the catheter catching members (1, 2) and the bearing surface; and - at least one gripping flap between the clamping members (3, 4) and the bearing surface;