Method and apparatus for providing simultaneous displays in panoramic radiography
US4194121A · kind A · utility
2Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Dec 13, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/51
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Two different areas of a focal trough of a dental arch structure are simultaneously displayed on a radiograph when tubehead-camera assembly of an X-ray machine panoramically scans the dental arch structure. The different areas of the focal trough are obtained when a pair of parallel disposed film holding devices within the camera are caused to travel in proximate relationship to each other at different speeds. The X-rays activate and pass through one film before activating the other immediately therebehind.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.