Gradient coil assembly for a magnetic resonance imaging apparatus
US5166619A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1990 |
| Grant date | Nov 24, 1992 |
| Priority date | — |
| Expiry date | Nov 29, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3875
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gradient coil assembly for a magnetic resonance imaging apparatus includes respective gradient coils for the x-gradient and y-gradient which are flat coils provided at the respective planar pole surfaces of the fundamental field magnet. The gradient coils each consist of a number of turns, each turn including a straight conductor element and a return element which proceeds as azimuthally relative to the edge of the coil. The assembly also includes correction coils formed by two identical conductor segments, each segment contain arcuate conductor groups which are provided for correcting the linearity of the gradients in the edge regions of the gradient coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.