US 12,332,330 B2
Systems and methods for diagnosis and image guided therapy with superconducting magnet shielding and providing heat exchange
Cheng Ni, Shanghai (CN); Xingen Yu, Shanghai (CN); Peng Wang, Shanghai (CN); Jianfeng Liu, Shanghai (CN); and Wei Han, Shanghai (CN)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Feb. 19, 2021, as Appl. No. 17/179,429.
Claims priority of application No. 202010103170.8 (CN), filed on Feb. 19, 2020; and application No. 202010151063.2 (CN), filed on Mar. 6, 2020.
Prior Publication US 2021/0255262 A1, Aug. 19, 2021
Int. Cl. G01R 33/34 (2006.01); A61B 5/055 (2006.01)
CPC G01R 33/34023 (2013.01) [A61B 5/055 (2013.01); G01R 33/3403 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system, comprising: a magnetic resonance imaging (MRI) device including:
a main body including a bore that is configured to accommodate a subject, wherein the main body includes a first portion and a second portion spaced apart from each other, a first side surface of the first portion and a second side surface of the second portion face each other, and a space is formed between the first side surface and the second side surface;
multiple superconducting magnets accommodated in the two portions of the main body and configured to generate a magnetic field in the bore;
a radiation source configured to emit a radiation beam toward the bore through the space;
one or more superconducting connections each of which is configured to connect at least two of the multiple superconducting magnets, wherein the one or more superconducting connections are located on the outside of the superconducting magnets, and
one or more protection components configured to protect the one or more superconducting connections, wherein
the one or more superconducting connections and the one or more protection components are located in the space;
a first end of each protection component is mechanically connected to a part of the first side surface, and a second end of each protection component is mechanically connected to a part of the second side surface; and
the one or more protection components are capable of shielding the radiation beam and each of the one or more superconducting connections is arranged within one of the one or more protection component such that the radiation beam in the space is shielded by the one or more protection component and prevented from irradiating the one or more superconducting connections in the space;
the MRI device further includes a heat exchange plate, a thermal shielding layer, and a vacuum layer arranged around the superconducting magnets successively along a direction perpendicular to an axial direction of the MRI device,
the heat exchange plate is configured to exchange heat with the superconducting magnets,
the thermal shielding layer is configured to prevent heat exchange between the vacuum layer and the heat exchange plate, and
the vacuum layer is configured to prevent heat exchange between the outside of the vacuum layer and the inside of the vacuum layer.