Abstract: In 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, including an injection needle supported by an injection-needle advancing arrangement for insertion of the injection needle into the patients body and the concurrent injection of medications with a separate dosing apparatus, a hose with a check valve for the one-way transport of the medical preparations from the dosing apparatus into the injection needle, as well as a pressure sensor for monitoring the infusion, the injection needle advancing arrangement comprises a needle holder and a linear drive for the movement of the needle holder in parallel with the injection needle and the dosing apparatus has geometric dimensions and consists of materials permitting its insertion into the CT or MRT together with the patient.

Abstract: In 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, including an injection needle supported. by an injection-needle advancing arrangement for insertion of the injection needle into the patients body and the concurrent injection of medications with a separate dosing apparatus, a hose with a check. valve for the one-way transport of the medical preparations from the dosing apparatus into the injection needle, as well as a pressure sensor for monitoring the infusion, the injection needle advancing arrangement comprises a needle holder and a linear drive for the movement of the needle holder in parallel with the injection needle and the dosing apparatus has geometric dimensions and consists of materials permitting its insertion into the CT or MRT together with the patient.

Abstract: In an apparatus for guiding surgical instruments during endoscopic surgery including a carrier on which a support member is rotatably mounted about a first axis and a housing structure is mounted on the support member so as to pivot about a second axis which is spaced from the housing structure and intersects the first axis in an invariant point and the housing slidably supports an instrument shaft having an axis also extending through the invariant point and an end which is mounted on a guide member, which is axially movably supported on a guide housing extending from the housing structure parallel to the instrument shaft, a camera is firmly supported on the guide housing in alignment with the instrument shaft so as to be axially movable but not rotatable with the instrument shaft whereby an image transmitted from a lens system at the front end of the instrument shaft to the camera at the rear end of the shaft is shown at a given top-to-bottom orientation independently the rotational position of the instrume