Patent ID: 11931135
Assignee: BEIJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 1:
2. The human-scale closed-bore MPI device based on the radial-Cartesian trajectory scanning according to claim 1, further comprising a circuit system, an examination bed, a cooling system, an imaging module, and a control device, wherein the circuit system, the mechanical rotation device, the examination bed, the cooling system, and the imaging module are all signal-connected with the control device;
the circuit system is configured to supply power and perform sampling for a scanning imaging component; and the scanning imaging component is a scanning imaging system comprising the gradient module, the rotating scanning module, the excitation module, the induction module, and the compensation module;
the examination bed is configured to carry an examination object and move along the axial direction of the imaging hole to a preset position;
the cooling system is configured to absorb heat generated by the scanning imaging component in operation;
the imaging module is configured to reconstruct a spatial distribution image of a physical feature of the magnetic particles; and
the control device is configured to control, according to set control instructions, current changes of the rotating scanning module and an excitation coil of the scanning imaging component, a mechanical rotation speed of the rotating scanning module of the scanning imaging component, a depth of movement of the examination bed, and a hydraulic pressure of the cooling system, such that the field-free point performs layer-by-layer scanning through translation and rotation, thereby achieving scanning imaging of the examination object.