Patent ID: 7850652

Claim:
An insertion head for medical use, comprising a housing formed by two housing parts movable relative to each other, a base separable from the housing, a puncture needle and a flexible cannula supported by the puncture needle, the puncture needle and cannula pivotal between a protected position inside the housing and an insertion position outside the housing in which the puncture needle and cannula can be inserted into the body of a patient, the puncture needle and cannula pivoting in response to the relative movement of the two housing parts, and a cannula housing securely connected to the cannula and pivoting with the cannula, and wherein after insertion the puncture needle is removed from the cannula, cannula housing, and base by moving the housing and puncture needle away from the body counter to the direction of insertion, the puncture needle being automatically pivoted into the protected position after removal from the cannula, and wherein the base, and cannula housing remain on the body of the patient and the cannula remains in the body of the patient.