Assistant device for magnetic resonance scans of knee joint

The invention relates to an assistant device for magnetic resonance scans of a knee joint. The assistant device is a rectangular flat shaped bottom plate, wherein vertical side baffle plates are respectively connected to the two sides of the bottom plate, and the inner side surfaces of the side baffle plates are parallel to each other; and an included angle between the inner side surfaces of the side baffle plates and the bottom plate is 70 to 75 degrees. By adopting the assistant device for magnetic resonance scans of the knee joint, the defects of a knee joint magnetic resonance scans positioning method and the motion artifact caused by the heteronomous moving of an examined person are effectively overcome,, the success rate of single scans is increased, the number of scans is reduced, and the paint of the examined person is relieved.