X-ray apparatus with source distortion compensation
US4719646A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 1986 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | May 8, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B42/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The apparatus enables the taking of multiple X-ray photographs of the legs and pelvis of a patient. A platform is rotatably mounted on a base member, and is provided with means for keeping the patient still in a standardized standing position. With only minor vertical and horizontal adjustment of an associated substantially point source of X-rays, side and front X-rays can be taken without movement of the patient, apart from rotation of the platform. Radio opaque marker means provided on otherwise radio-transparent spaced screens produce, on the X-ray film, images which can be interpreted to provide information for compensation of distortions in images on the X-ray film due to the use of a point source of radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.