Patent ID: 7456407

Claim:
A system for medical imaging comprising: a gantry including: an annular support ring having an inner surface and an outer surface, said inner surface defining a cylindrical inner space, and a detector head having one or more detectors for nuclear radiation detection and a housing for said one or more detectors, said housing being fixed to said inner surface of said annular support ring so that said one or more detectors are fixed at a predetermined distance from said annular support ring, and a mechanism for allowing said annular support ring to rotate along a centre axis of said inner space and for preventing horizontal, vertical and angular movements of said annular support ring, said mechanism including: one or more braces being fixed to a base; one or more rollers for said one or more braces, each rotatably mounted on the corresponding brace and engaging with said outer surface of said annular support ring for rotating said annular support ring; and a device mounted on at least one of said one or more braces for locating said annular support ring in a predetermined direction.