Computer tomography apparatus
US5125012A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1991 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Jul 10, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4028
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computer tomography apparatus has an annular anode which surrounds a detector ring disposed coaxially relative thereto and having a cathode ring also disposed coaxially relative to the anode. The cathode ring has a series of cathodes which are respectively enabled step-by-step to emit electrons onto the anode so as to displace the focus. Each cathode has a deflector unit associated therewith which deflects the focus for that cathode along the circumference of the anode. One or more cathodes with associated deflection units, and an anode section, can be constructed in combination as a module. The number of focus positions is thereby increased, and the time for acquiring a set of image data is significantly reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.