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US 5,317,298 AGranted
Apparatus and method for passive shimming of a superconducting magnet which images human limbs
AssigneeGeneral Electric Company
InventorsBizhan Dorri, Evangelos T. Laskaris, Kenneth G. Herd, Raymond E. Gabis
Life of this patent
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Abstract
This invention relates to an apparatus and method for providing passive shimming for a superconducting magnet of the type that has a relatively small imaging volume. Such structures of this type, generally, provide the proper amount of passive shimming for a relatively small imaging volume.
Claims4
An integral passive shim/gradient coil assembly, wherein said assembly is comprised of:
- a gradient coil means;
- a passive shim support means integrally attached to said gradient coil means;
- shim locations located substantially adjacent to said shim support means;
- a passive shim means placed within a predetermined number of shim locations;
- a shim cover means operatively connected to said passive shim means wherein said shim cover means is further comprised of:
- rectangular covers which measure approximately 2.281 inches long by 0.375 inch wide by 0.005 inch thick;
- and
- a holding means for holding said shim cover means in place over said passive shim means wherein said holding means is further comprised of:
- an adhesive tape.
6 more elements
Dependencies are inferred from the claim text.