MRI (Magnetic Resonance Imaging) gradient coil assembling platform and assembling method

Abstract

The invention provides an MRI (Magnetic Resonance Imaging) gradient coil assembling platform and assembling method. The MRI gradient coil assembling platform comprises a bearing structure I, a bearing structure II, a bottom installation platform, an X and Y adjustment table, a rotary adjustment table and Z-direction oblique adjustment bolts, wherein the bottom installation platform is in a circular ring shape; two circles of support pillars are respectively arranged inside and outside the circular ring part and are respectively inner layer support pillars and outer layer support pillars; the inner layer support pillars support the bearing structure I; the outer layer support pillars support the circular ring-shaped bearing structure II; the circular ring-shaped rotary adjustment table is arranged on the bearing structure II; the circular ring-shaped X and Y adjustment table is arranged on the rotary adjustment table; the bearing structure I is arranged in the circular ring-shaped X and Y adjustment table; a plurality of Z-direction oblique adjustment bolts are uniformly arranged on the bottom part of the bearing structure II. The platform can realize rotary, inclination and translation of a gradient coil module, and meets the requirement of gradient coil assembling; due to the use of the method, the assembling efficiency of coils is improved, the process cost is reduced, and the product performance is improved.

Description

technical field [0001] The invention relates to a gradient coil production technology in the field of MRI technology, and provides an MRI gradient coil assembly platform and an assembly method. Background technique [0002] Gradient coil is one of the core components of the MRI (Magnetic Resonance Imaging, English full name is: Magnetic Resonance Imaging) system. At present, only a few companies in the world have mastered its core technology. Only the British Tesla company and Nanjing Cichen Medical Technology Co., Ltd. are on the market. Ltd. sells mature gradient coil products. [0003] As we all know, a magnetic field will be generated in the energized coil. Within a certain range, the magnetic field strength is proportional to the current passing through it. The main function of the gradient coil is to convert electrical energy into magnetic energy and provide the encoding magnetic field of the magnetic resonance system. Ideally, all electrical energy is converted into ...

AI Technical Summary

Problems solved by technology

Ideally, all electrical energy is converted into magnetic field energy, but in practical applications, due to the existence of eddy currents, a part of the magnetic field is offset by the induced magnetic field, and the ideal electromagnetic conversion conditions cannot be achieved. If the eddy current is large, it will affect the performance of the coil, especially It is impossible to achieve high-speed gradient switching, which restricts the development of imaging technology

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