US 11,940,507 B1
Fixation and registration calibration system for multimodal magnetic particle imaging
Jie Tian, Beijing (CN); Bo Zhang, Beijing (CN); Jie He, Beijing (CN); and Yu An, Beijing (CN)
Assigned to Beijing University of Aeronautics and Astronautics, Beijing (CN)
Filed by Beijing University of Aeronautics and Astronautics, Beijing (CN)
Filed on Oct. 28, 2023, as Appl. No. 18/384,837.
Claims priority of application No. 202310104165.2 (CN), filed on Feb. 13, 2023.
Int. Cl. G01R 33/12 (2006.01); G01R 33/00 (2006.01)
CPC G01R 33/1276 (2013.01) [G01R 33/0023 (2013.01); G01R 33/0047 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A fixation and registration calibration system for multimodal magnetic particle imaging (MPI), comprising an upper limiting device, a lower limiting device, an auxiliary clamping device, and an MPI calibration sample, wherein the upper limiting device, the lower limiting device, and the auxiliary clamping device are provided with magnetic particle calibration holes at different positions; the MPI calibration sample is provided through the magnetic particle calibration holes to achieve spatial position registration calibration; wherein
the upper limiting device is connected to the lower limiting device by a hand screw and an adjustable position component; and the upper limiting device and the lower limiting device each are symmetrical about the adjustable position component;
the upper limiting device is provided with upper threaded holes and a magnetic particle calibration hole; the upper threaded holes form left-right symmetry about a center of the upper limiting device to fix the auxiliary clamping device; and the magnetic particle calibration hole is configured to mount the MPI calibration sample;
a lower end of the lower limiting device is provided with an object table; and a surface of the object table is provided with magnetic particle calibration holes at different positions, and the magnetic particle calibration holes are configured to mount the MPI calibration sample; and
the auxiliary clamping device is fixed at an upper end of the upper limiting device; the auxiliary clamping device comprises a long hand screw and an auxiliary clamping side plate; the auxiliary clamping device is connected to the upper threaded hole of the upper limiting device through the long hand screw; the auxiliary clamping side plate is fixed to a long shank of the long hand screw, and is rotatable to adjust a front-rear position and a clamping angle of the auxiliary clamping side plate; and a surface of the auxiliary clamping side plate is provided with multiple magnetic particle calibration holes, and the magnetic particle calibration holes are configured to mount the MPI calibration sample.