Panoramic dental X-ray machine X-motion drive
US4251730A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Apr 2, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/51
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Panoramic dental X-ray machine possessing mechanical and electronic simplicity for providing both continuous and discontinuous radiographs of a dental arch area. The machine includes an excursion mechanism which causes a tubehead-camera assembly to uninterruptedly circularly orbit the patient's head at a constant speed. A drive mechanism is employed which controls the shifting or transport of the patient along an X-axis only, when either continuous or discontinuous images are desired. The kVp and milliamperes remain constant during the entire exposure of the patient to the X-rays as well as the rotational speed of the tubehead-camera assembly, and no attenuating members are required in the X-ray path for varying intensity of the X-ray beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.