Siemens Aktiengesellschaft

Dieter Molitor

Werner Guenther

Erich Heubeck

Manfred Muether

Werner Gunther

Michael Doebert

Leonhard Werner

Heinrich Schmitt

Erich Huebeck

A dental x-ray diagnostics installation for producing panorama x-ray exposures of the skull of a patient has a rotary unit and a positioning unit mounted so as to be pivotable boom-like around a horizontal axle shaft and are arranged so as to be fixable in individual swiveled positions. The individual swiveled positions thereby correspond to different physical sizes of a seated patient. For preparing an exposure, the positioning unit is first adjusted to the patient and the rotary unit is subsequently adjusted in a fixed allocation to the positioning unit.

Dental x-ray diagnostic installation for producing panorama x-ray

The invention is directed to an apparatus for positioning a patient's head for producing a remote X-ray photograph of the skull of the patient. The apparatus includes a device for holding the skull, which is mounted at one end of a cross carrier which is connected to an X-ray diagnostics installation for producing slice exposures of the jaw of a patient. The skull holder contains ear button holders which are adjustable, as well as a nose support for positioning the patient in the skull holder. The apparatus also includes a device for mounting a film cassette, which device is adjustable in a direction towards the radiation source of the X-ray diagnostics installation. In order to be able to make reproducibile temporomaxillary joint exposures, the skull holder is mounted to pivot around a horizontal axis so that the head of the patient can be adjusted in various inclined positions with relation to the sagittal plane.

Apparatus for positioning a patient's head for producing remote X-ray

In order to provide a dental X-ray diagnostic installation for producing panoramic tomograms of the jaw of the patient and to achieve a simple structure with improved image quality, the apparatus includes an adjustment mechanism for the carrier of the radiation source and the film cassette holder to be adjusted in an orbital curve corresponding to the dental arch of the patient. The adjustment arrangement includes first adjustment parts with which the carrier can be rotated around a first vertical axis, and second adjustment elements for moving or swivelling the first axis in an arch transverse relative to the symmetry axis of the subject during the rotary motion. The swivel radius and the amount of excursion of this swivel motion are selected so that the perpendicular transillumination direction through the subject gives a constant distance between the subject and the film during the motion of the rotary unit. To accomplish this, the invention includes two separate embodiments with various modifications.

Dental X-ray diagnostic installation for producing panoramic 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.

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Buerstadt, Germany

Dieter Molitor