The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1999
Filed:
May. 19, 1997
Applicant:
Inventor:
Josef Ploetz, Bensheim, DE;
Assignee:
Sirona Dental Systems GmbH & Co. KG, Bensheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
378-2 ; 378162 ;
Abstract
An X-ray diagnostics apparatus for tomosynthesis has a radiation emitter and a reference object exclusively connected thereto so that the reference object has a fixed reference relationship to the radiation emitter. It is thus possible to determine the spacing of the radiation emitter from the radiation receiver and from the examination subject, the radiation angle and the transirradiation direction on the basis of the signals obtained from the radiation receiver upon transirradiation of the reference subject without having the reference object representing an impediment in the region of the examination subject.