Panoramic dental X-ray machine with camera detached therefrom
US4321472A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/51
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Panoramic dental X-ray machine wherein the camera assembly is physically detached from the tubehead assembly to prevent their rotation as an integral unit around the patient's head. Essentially, the detached camera assembly, modified in accordance with one aspect of the invention, is positioned above the head of the patient and its semi-cylindrical film carrier carries X-ray film therewith. The film carrier is cupped about the patient's face with an inner drum or mask configured similarly to the film carrier interposed between the film carrier and patient's face. The film carrier and film are then rotated at slow non-linear speeds by the film drive mechanism of the camera assembly in accordance with the type radiograph desired, i.e., continuous or discontinuous. The many advantages of the disclosed panoramic X-ray machine are cited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.