Superconducting magnetic resonance imaging magnet assembly and method with reverse wire channel orientation
US6633215B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Jan 31, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49014
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A superconducting magnetic resonance imaging magnet assembly is provided. The assembly includes an axial imaging bore to receive patients and a coil housing surrounding the axial bore. A main magnet coil assembly is disposed within the housing. The main magnet coil assembly includes a plurality of main magnet coils to produce a magnetic field. At least three pairs of superconductive coils are provided. In one aspect, each of the coils in at least one of the pairs comprises a superconductor wire carrying an electric current in a direction opposite to the direction of current carried by the coils of another of the superconductive pairs. The superconductor wire comprises a superconductor core and a stabilizer having a channel. The wire is wound so that the channel has a radially outward facing opening. In another embodiment, low-aspect-ratio coils are used for at least one of the pairs of superconductive coils with the outer diameter coil portion comprising a superconductor core and a stabilizer channel having a radially outward facing opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.