Abstract: An x-ray C-arm device has a C-arm rotatable around an orbital axis proceeding perpendicular to the plane of the C-arm. The C-arm carries an x-ray source and a radiation detector, and the overall center of gravity of the C-arm and the components carried thereby exerts a first torque on the C-arm. A counterbalancing device generates a second torque that at least partially compensates the first torque. The counterbalancing device includes a counterweight that is displaceably coupled to the C-arm by a gearing arrangement.

Abstract: An x-ray C-arm device has a C-arm rotatable around an orbital axis proceeding perpendicular to the plane of the C-arm. The C-arm carries an x-ray source and a radiation detector, and the overall center of gravity of the C-arm and the components carried thereby exerts a first torque on the C-arm. A counterbalancing device generates a second torque that at least partially compensates the first torque. The counterbalancing device includes a counterweight that is displaceably coupled to the C-arm by a gearing arrangement.

Abstract: A medical system with adjustable, movable components that can be set by disengageable brakes, in particular an X-ray diagnostic apparatus with a C-arm that can be adjusted in the height of its orbital position and angulation and that carries an X-ray source and a beam receiver at its ends, has a sterilizeable handle that can be plugged in various positions, with a plug lock. A disengage button for the system brakes is arranged on the handle, which can be engaged with switching apparatuses in the system upon plugging the handle into a component of the system. The button can then be operated for actuating and disengaging the brakes.

Abstract: A medical apparatus has a C-arm which carries a radiation transmitter, and which is adjustably held by a mount so as to be movable along the circumference of the C-arm. The mount engages guideways which are provided at a rear side of the C-arm. The C-arm is in the form of a hollow, profiled part having a substantially U-shaped cross-section. The guideways are respectively disposed at the insides of the legs of the U-shaped cross-section. The C-arm has an interior channel therein with a rectangular cross-section, which is adapted for accepting electrical leads or supply lines for the radiation transmitter. The channel is laterally adjacent one leg of the U-shaped cross-section.

Abstract: A medical treatment installation having an imaging system and a transmitter which generates a focused therapy field, such as focused shockwaves, for treating a pathology in a region of a patient includes components for displacing the position of the focal point of the therapy field relative to the region to be treated so that the focus therapy field is successively incident at a number of locations in the region during treatment, and a mark generator, which interacts with the imaging system, for generating an indicator in the image corresponding to each of the locations of the focused therapy field in the region. The mark may identify each location at which the region has been subjected to the therapy field during treatment, so that repetitive administration of the therapy field at a location which has already been treated can be avoided.

Abstract: An X-ray diagnostic installation for producing mammography exposures having a compressing means for compressing the breast tissue, may be designed such that the breast tissue is compressed uniformly. A compression plate and a seating plate are arranged in a acute interspacial angle, such that the compression plate tapers toward the examination subject. The compression plate is seated such that the angle of the compression plate relative to the seating plate diminished upon compression of the breast tissue.

Abstract: A portable x-ray diagnostics apparatus has a radiation receiver mounted at one end of a height-adjustable column by a support mount. The lower, opposite end of the column is attached to a wheeled base of the apparatus. A height-adjustment mechanism is provided inside the column and the base which permits the height of the x-radiator above the base to be adjusted without an electromotive drive, and such that the force exerted for adjusting the height of the column is substantially the same over the entire adjustment path. For this purpose, one end of a cable is connected at a location inside the lower end of the column, and the cable is guided around various deflection elements, with the opposite end being attached in the base of the apparatus. A weight compensating force is provided by a spring connected to one of the deflection elements, with the spring being horizontally tensed in the base of the apparatus.

Abstract: Biopsy assembly for use in an x-ray examination apparatus having an x-radiator with a focus from which a ray pyramid emanates, and a radiation receiver arranged residing opposite the x-radiator for producing an x-ray picture of an examination subject situated between the two, the biopsy assembly determining a paracentesis point of a biopsy needle pertaining to a diagnostically relelvant region imaged on the x-ray picture and situated inside the examination subject and positioning the biopsy needle relative thereto. The biopsy assembly includes a guide element having a channel for the biopsy needle with a diameter essentially corresponding to that of the biopsy needle, and a positioning system for adjusting the guide element relative to the region of the examination subject such that the longitudinal axis of the channel of the guide element always proceeds through the focus of the x-radiator.

Abstract: An X-ray diagnostics installation has an X-ray tube for directing an X-ray beam at an examination subject disposed within the beam path on a support plate, the support plate having a secondary radiation grid on one side thereof, and having a receptacle therein for an X-ray film cassette. The support plate is mounted so as to be rotatable about an axis which is perpendicular to a central ray of the X-ray beam such that the secondary radiation grid can be optionally disposed in front of or behind the X-ray film cassette as viewed in the radiation direction, while the film focus distance remains the same.

Abstract: The invention relates to a radiodiagnostics apparatus for mammograms with an adjustable x-ray tube fastened to a mount, a compression device, and two recording stages to be selectively aligned with the x-ray tube. The recording stages are pivotably connected with the mount in such a way that one can be brought into a recording position and the second into a parked position.