US 11,698,425 B2
Magnetic resonance device
Stephan Biber, Erlangen (DE)
Assigned to Siemens Healthcare GmbH, Erlangen (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE)
Filed on Mar. 11, 2022, as Appl. No. 17/693,061.
Claims priority of application No. 10 2021 202 389.4 (DE), filed on Mar. 11, 2021.
Prior Publication US 2022/0291313 A1, Sep. 15, 2022
Int. Cl. G01R 33/38 (2006.01); G01R 33/385 (2006.01)
CPC G01R 33/3806 (2013.01) [G01R 33/3804 (2013.01); G01R 33/385 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A magnetic resonance device having a main magnet unit with a cylindrical patient aperture with a diameter of at least 60 cm, wherein the main magnet unit comprises:
a cylindrical main magnet arrangement, which is outwardly delimited by a vacuum vessel, in which a support structure supporting main magnet coils is supported by suspension elements which are fastened externally on the vacuum vessel in fastening regions;
at least one buttress ring which is guided at least partially about the vacuum vessel, is fastened hereto and covers the fastening regions by cover elements;
a gradient connection plate for a gradient coil arrangement that surrounds the cylindrical patient aperture; and
a cladding arrangement with at least one cladding part outwardly delimits the main magnet unit,
wherein the gradient connection plate is fastened on an end face of the main magnet unit between the vacuum vessel and the cladding arrangement, and
wherein the at least one buttress ring arranged centrally in a longitudinal direction of the main magnet unit is flatter in a top side region which extends about a highest point of the vacuum vessel and/or a floor region which extends about a lowest point of the vacuum vessel than in a laterally adjoining region.