- Applicator for a cannula - with at least one handle part, which at the same time serves as a safety device against the triggering of the preloading device - with one needle seat - with one spring seat - with one pad - with one cannula - In a preloaded state of the applicator the cannula protrudes from the bottom openings of the spring seat and the pad. - The cannula is fixed to the needle seat. - The at least one handle part is connected with the needle seat in a detachable way. - At least one wing on the needle seat is arranged for rotatable movement. - In the not-in-use position the at least one wing is detachably connected by its holding part with the holding part of the needle seat, the handle part preventing the wing from rotating. - The needle seat is arranged in a spring seat - The spring seat has got at least two snap-in parts rising vertically from the bottom of the spring seat. - The top ends of the snap-in parts show snap-in noses facing each other. - The sides of the snap-in noses facing each other are bevelled. - The needle seat is spring loaded against the spring seat. - In the preloaded state, the at least 2 snap-in noses protrude through at least 2 openings of the needle seat and rest on the upper side of the needle seat. - In the preloaded state, the lower end of the at least one wing pointing towards the centre of the needle seat is located between the bevelled sides of the at least two snap-in noses. - After removal of the at least one handle part, the at least one wing becomes rotationally movable about the hinge, whereby the rotational movement releases the holding part of the at least one wing from the holding part of the needle seat. - In a vertical position of the wing, its lower end facing the centre of the needle seat presses the snap-in noses apart so that they no longer rest on the upper side of the needle seat, thus releasing the preloaded device, so that they no longer rest on the upper side of the needle seat, thereby releasing the preloaded device. - By releasing the preloaded device, the needle seat is pushed upwards by the spring away from the spring seat, whereby the cannula is pulled completely into the space between needle seat and spring seat. - A preloaded closing device is arranged in the spring seat, which closes the bottom opening of the spring seat by spring pressure as soon as the cannula has been pulled through the bottom openings of the needle seat and the spring seat. - Applicator for a cannula - with at least one handle part, which at the same time serves as a safety device against the triggering of the preloading device - with one needle seat - with one spring seat - with one pad - with one cannula - In a preloaded state of the applicator the cannula protrudes from the bottom openings of the spring seat and the pad. - The cannula is fixed to the needle seat. - The at least one handle part is connected with the needle seat in a detachable way. - At least one wing on the needle seat is arranged for rotatable movement. - In the not-in-use position the at least one wing is detachably connected by its holding part with the holding part of the needle seat, the handle part preventing the wing from rotating. - The needle seat is arranged in a spring seat - The spring seat has got at least two snap-in parts rising vertically from the bottom of the spring seat. - The top ends of the snap-in parts show snap-in noses facing each other. - The sides of the snap-in noses facing each other are bevelled. - The needle seat is spring loaded against the spring seat. - In the preloaded state, the at least 2 snap-in noses protrude through at least 2 openings of the needle seat and rest on the upper side of the needle seat. - In the preloaded state, the lower end of the at least one wing pointing towards the centre of the needle seat is located between the bevelled sides of the at least two snap-in noses. - After removal of the at least one handle part, the at least one wing becomes rotationally movable about the hinge, whereby the rotational movement releases the holding part of the at least one wing from the holding part of the needle seat. - In a vertical position of the wing, its lower end facing the centre of the needle seat presses the snap-in noses apart so that they no longer rest on the upper side of the needle seat, thus releasing the preloaded device, so that they no longer rest on the upper side of the needle seat, thereby releasing the preloaded device. - By releasing the preloaded device, the needle seat is pushed upwards by the spring away from the spring seat, whereby the cannula is pulled completely into the space between needle seat and spring seat. - A preloaded closing device is arranged in the spring seat, which closes the bottom opening of the spring seat by spring pressure as soon as the cannula has been pulled through the bottom openings of the needle seat and the spring seat.