Collimator for reducing patient x-ray dose
US5644614A · kind A · utility
36Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1995 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Dec 21, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/26
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention, in one form, is a pre-patient collimator for reducing patient x-ray dose during a scan with a computed tomography system. The collimator has a contoured aperture for emitting a generally rectangular shaped x-ray fan beam. The fan beam approximates the rectangular shape of x-ray detectors which gather data for producing an image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.