X-ray CT apparatus
US7508904B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 14, 2007 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | May 14, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4488
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An X-ray CT apparatus, wherein a drum type rotation frame is rotatably supported by a fixed circular frame so as to surround an outer surface of the drum type rotation frame through a plurality of bearings provided between an inner surface of the fixing circular frame and an outer surface of the drum type rotation frame, for example in ring-like configuration. When the drum type rotation frame receives a large centrifugal acceleration due to a high speed rotation, outside expansion of the drum type rotation frame can be constrained due to both the rigidity of the fixed frame and the rigidity of the plurality of bearings provided on the outer surface of the rotation frame, thereby to maintain the relative positions of the X-ray tube and the X-ray detector and prevent deterioration of reconstructed images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.