US 12,455,329 B2
MRI system and RF coil assembly thereof
Tong Tong, Shenzhen (CN); Bing Wu Zhang, Shenzhen (CN); and Zheng He He, Shenzhen (CN)
Assigned to Siemens Healthineers AG, Erlangen (DE)
Filed by Siemens Healthcare GmbH, Erlangen (DE)
Filed on Jun. 29, 2023, as Appl. No. 18/216,018.
Claims priority of application No. 202210749647.9 (CN), filed on Jun. 29, 2022.
Prior Publication US 2024/0004006 A1, Jan. 4, 2024
Int. Cl. G01R 33/34 (2006.01); G01R 33/36 (2006.01)
CPC G01R 33/34084 (2013.01) [G01R 33/34007 (2013.01); G01R 33/3628 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A radio-frequency (RF) coil assembly for a magnetic resonance imaging (MRI) system, the RF coil assembly comprising:
a coil support, including:
a base,
a first adjusting arm, rotatably connected to the base and configured to be rotatable about a first axis relative to the base, and
a second adjusting arm, rotatably connected to the first adjusting arm and configured to be rotatable about a second axis relative to the first adjusting arm, the second axis being parallel to the first axis; and
an RF coil configured to receive magnetic resonance (MR) signals, and being rotatably connected to the second adjusting arm, the RF coil being configured to be rotatable about a third axis relative to the second adjusting arm, the third axis being parallel to the first axis,
wherein the first axis, the second axis, and the third axis are separate and spaced apart from one another, and
wherein the coil support further comprises:
a first connecting shaft, the base having a first shaft seat and a second shaft seat arranged opposite one another along the first axis, the first connecting shaft having a first pressing part and a first rotation shaft arranged consecutively along the first axis, the first pressing part being threadably connected to the first shaft seat around the first axis, the first rotation shaft being a cylinder with its axis coinciding with the first axis and having one end connected to the second shaft seat, the first adjusting arm being fitted around the first rotation shaft rotatably, and the first pressing part having a first abutment face facing the first adjusting arm, the first abutment face being able to press against the first adjusting arm in a direction parallel to the first axis and facing toward the second shaft seat to increase a rotation resistance of the first adjusting arm; or
a second connecting shaft, the first adjusting arm having a third shaft seat and a fourth shaft seat arranged opposite one another along the second axis, the second connecting shaft having a second pressing part and a second rotation shaft arranged consecutively along the second axis, the second pressing part being threadably connected to the third shaft seat around the second axis, the second rotation shaft being a cylinder with its axis coinciding with the second axis and having one end connected to the fourth shaft seat, the second adjusting arm being fitted round the second rotation shaft rotatably, and the second pressing part having a second abutment face facing the second adjusting arm, the second abutment face being able to press against the second adjusting arm in a direction parallel to the second axis and facing toward the fourth shaft seat to increase the rotation resistance of the second adjusting arm.