Dental X-ray diagnostics installation
US4756014A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1986 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Dec 17, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/51
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An x-ray diagnostic installation for producing panoramic tomograms of the jaw of a patient utilizes a flexible film cassette instead of a rigid film cassette. The film cassette is driven by an electromotive drive arranged in a housing of a film cassette holder behind a secondary diaphragm as seen in the direction of the radiation from a source of radiation. The drive is formed from by at least one drive element, and at least one cooperating element arranged thereto at a distance therefrom with means biasing at least one of the elements towards the other to produce a frictional engagement of the film cassette and move it past the secondary diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.