Image region selector for a scanning X-ray system
US4259583A · kind A · utility
Inventor
Key dates
| Filing date | May 3, 1979 |
| Grant date | Mar 31, 1981 |
| Priority date | — |
| Expiry date | May 3, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4423
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Examination of dental patients or other subjects (14) with a radiographic system (11) having a scanning X-ray source (17) and a collimator (58) with a plurality of passages (62) for directing X rays to a detector (51) is facilitated by an image region selector (12) which is separate from the source. The selector (12) includes the detector (51) and means (64) defining the collimator position at which the collimator passages (62) are directed towards the detector (51). The selector (12) may be positioned and independently supported, to establish the region to be imaged, prior to the time that the relatively heavy and bulky X-ray source (17) is maneuvered into position for making the examination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.