Siemens Aktiengesellschaft

Sirona Dental Systems Gmbh

Sirona Dental Systems Gmbh & Co. Kg

Werner Gunther

Erich Heubeck

Michael Dobert

Norbert Erhardt

Ulrich Schulze-Ganzlin

Manfred Muether

Ernst O Fleer

Uwe Zeller

Dieter Molitor

Leonhard Werner

Manfred Muther

The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.

X-ray device and X-ray sensitive camera for panoramic tomography and 3D shots

The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D sot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.

In a method and an apparatus for producing X-ray tomograms of the jaw and skull of a patient, a detector arrangement having at least one x-ray detector is provided. The radiation-sensitive area of the detector is a sub-area of the total detector area required for the subject exposure. The image exposure ensues in a number of chronologically separate sections in which, following a first sub-exposure, the detector arrangement is displaced along the longitudinal axis and/or the transverse axis of the detector surface and the diaphragm aperture of the primary diaphragm associated with the x-ray source is simultaneously correspondingly adapted so that the position of the x-ray beam is shifted so that it still strikes the detector appropriately after the detector is displaced.

Method and apparatus for producing X-ray exposures of body parts of a

A dental diagnostic apparatus or installation which obtains a better matching of the exposure data to the patient and has a rotary unit carrying the radiation source and the film cassette which are adjustable to an initial position by an adjustment arrangement and from this initial position the film cassette can be charged with the radiation within the framework of normal transillumination with the radiation initially beginning outside of the mandibular arch. The incoming radiation dose is measured by a detector arrangement which creates a signal that is compared in a computational unit of a control arrangement to a rated quantity corresponding to a prescribed dose value. The exposure data required from further transillumination of the patient's head are identified therefrom and the tomogram position is determined by identifying the patient-associated film speed via the jaw length/jaw width measurements and comparison to defined rated value.

Dental x-ray diagnostic apparatus for producing panorama tomograms of

A dental X-ray diagnostic installation for producing panoramic tomograms of the jaw of a patient is provided with a multiple diaphragm part having a plurality of different diaphragm apertures which can be adjusted to be positioned into a beam path from the X-ray source to enable producing different exposures. Preferably, the multiple diaphragm part is mounted for rotation on an axis so that the diaphragm apertures can be respectively aligned to the beam path of the radiation source. The multiple diaphragm part can be either a one-piece diaphragm member having a cylindrical configuration, a multiple piece member having a disk configuration, or can be a box-shaped carrier carrying a plurality of diaphragm inserts.

Dental x-ray diagnostics installation for producing panorama tomograms

In order to be able to produce congruent panoramic strip exposures of a jaw of a patient with a dental x-ray diagnostic installation, the patient's head must be positioned by means of a forehead support, which is adjustable only in a horizontal plane, and by means of a seating part which is rigidly arranged on a carrier in the device. The seating part contains an arrangement for forming a seating surface for engaging the upper jaw of the patient so that the seating surface engages a sub-nasal point of the jaw for those patients who have no teeth or only part of their teeth and a second seating type surface for those patients having a full set of teeth.

Dental X-ray diagnostic installation

A flexible film cassette for holding a dental x-ray film on the outside of a patient's mouth for exposure from a radiation source from an x-ray diagnostic installation or device in which an applicator is capable of being inserted intraorally in the patient's mouth characterized by a first support extending between an applicator and the cassette and a second support spaced an interval from the axis of the first support for forming a coupling between the film and the housing of the x-ray device to prevent rotation of the cassette relative to the applicator.

Growing community of inventors

Bensheim, Germany

Werner Gunther