Magnetic resonance imaging system and its cryostat structure

Abstract

The invention provides a cryostat structure, comprising: a tank body, a cavity is arranged inside the tank body, and the cavity is used to place a coolant and a superconducting coil soaked in the coolant, and the superconducting coil is The conductive coil is used to generate the main magnetic field required for magnetic resonance imaging; the cold head part is located on the side of the tank, and the cold head part is used to refrigerate the cavity to keep the superconducting coil in the Low-temperature superconducting state; the cold head part is arranged obliquely relative to the vertical direction. That is, there is an angle between the cold head part and the vertical direction to increase the space between the cold head part and the ceiling; in this way, the inclined cold head part can reduce the height of its extraction, thereby making the above space Capable of accommodating cold head components, reducing the need for installation on the hospital site. The invention also provides a magnetic resonance imaging system.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a magnetic resonance imaging system and a cryostat structure thereof. Background technique [0002] Magnetic resonance imaging system is a medical method aimed at obtaining one-dimensional, two-dimensional and three-dimensional images, which is very suitable for the imaging of soft tissue, mainly used for diagnosing disease pathology and internal injuries. A typical magnetic resonance imaging system includes superconducting coils to generate a strong, uniform main magnetic field in the scanning area. Superconducting coils work at extremely low temperatures, and the temperature of the superconducting coils is usually maintained by the use of zero liquid helium volatilization and a refrigerator. [0003] The low-temperature refrigerator provides sufficient cooling compensation, and its value is greater than the leakage heat from the outside, so that the entire low-temper...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a cryostat structure that can be easily installed and disassembled so as to reduce the installation requirements on the hospital site, in view of the problem that the small space between the cold head and the ceiling above it affects the disassembly and assembly of the cold head. At the same time, a magnetic resonance imaging system containing the above-mentioned cryostat structure is also provided

Images