Simultaneously displaying varying tomographic images of dental arch with single panoramic X-ray exposure
US4239971A · kind A · utility
22Cited by
1References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1979 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Oct 5, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4291
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Only a single panoramic exposure to an X-ray source is needed to simultaneously provide a plurality of different real time and/or permanently recorded tomographic images of a focal trough of a patient's dental arch area. Contrast, intensity and magnification properties relating to tissue, bone, teeth, cheeks, and the like, may readily be varied by the dentist, physician or medical technician by merely turning or adjusting appropriate knobs of electronic components associated with the invention, a task impossible to achieve by present direct film screen X-ray cameras.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.