US 12,392,850 B2
Cryostat structure for magnetic resonance imaging apparatus, and magnetic resonance imaging apparatus
Eugene Astra, Eynsham (GB); and Jun Zhao Wu, Shenzen (CN)
Assigned to Siemens Healthcare Limited, Camberley (GB)
Appl. No. 17/777,824
Filed by Siemens Healthcare Limited, Camberley (GB)
PCT Filed Nov. 19, 2020, PCT No. PCT/IB2020/060916
§ 371(c)(1), (2) Date Jan. 20, 2023,
PCT Pub. No. WO2021/099987, PCT Pub. Date May 27, 2021.
Claims priority of application No. 201911140096.0 (CN), filed on Nov. 20, 2019.
Prior Publication US 2023/0141678 A1, May 11, 2023
Int. Cl. G01R 33/38 (2006.01); G01R 33/3815 (2006.01)
CPC G01R 33/3804 (2013.01) [G01R 33/3815 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A cryostat structure for a magnetic resonance imaging device, comprising:
a casing, which forms a ring-shaped chamber inside, the casing having a suction hole which is detachably sealed by a sealing cover;
a refrigerant container disposed in the ring-shaped chamber and housing a superconducting coil in the refrigerant container such that the superconducting coil is immersed in liquid refrigerant;
a heat shield layer disposed between the casing and the refrigerant container, the heat shield layer being configured to shield the casing from heat radiation;
an adsorption chamber (i) provided on one side of the casing facing the ring-shaped chamber, and (ii) disposed on one side of the sealing cover facing the ring-shaped chamber; and
an adsorbent contained in the adsorption chamber, the adsorbent being configured to adsorb overflowing elements from the casing, the refrigerant container, or the heat shield layer.