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

US6055292A · kind A · utility

Assignee

• Sirona Dental Systems GmbH & Co. KG · DE

Inventors

• Uwe Zeller · Biberach, DE
• Werner Gunther · Bensheim, DE
• Ulrich Schulze-Ganzlin · Lorsch, DE
• Michael Dobert · Lorsch, DE

Key dates

• Filing date: Feb 17, 1998
• Grant date: Apr 25, 2000
• Expiry date: Feb 17, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/51
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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.