Device for the injection of medical preparations with CT/MRI monitoring

A device for the injection of medical preparations into a patients body during an examination in a Computer Tomograph (CT) or in a Magnetic Resonance Tomograph (MRT) or endoscopically, said device including an injection-needle advancing arrangement, an injection needle (1) supported by said injection-needle advancing arrangement for insertion of the injection needle into the body of the patient (35) and the concurrent injection of medications, a separate dosing apparatus (6) for the storing and sensor controlled transport of the medical preparations, a hose (4) with a check valve (3) for the one-way transport of the medical preparations from the dosing apparatus (6) to the injection needle, and a pressure sensor (2) for monitoring the infusion between the dosing apparatus (6) and the injection needle (1), said injection needle advancing arrangement comprising a needle guide structure, a needle holder (13) and a linear-drive (14) for the movement of the needle holder (13) in parallel with the injection needle (1), said injection needle advancing arrangement and said dosing apparatus (6) and its drive mechanism having dimensions and consisting of materials permitting the introduction thereof into the CT- or MRT and being operative therein.