Medical accelerator treatment bed

Abstract

The invention provides a medical accelerator treatment bed. The medical accelerator treatment bed comprises a bed plate for carrying a patient, a lateral driving mechanism, a longitudinal driving mechanism, a vertical lifting mechanism, a longitudinal side turning fine adjustment mechanism and a lateral pitch fine adjustment mechanism, wherein the lateral driving mechanism, the longitudinal driving mechanism and the vertical lifting mechanism are used for respectively driving the bed plate to move forwards and backwards, rightwards and rightwards, and upwards and downwards; the longitudinal side turning fine adjustment mechanism is used for driving the bed plate to realize left-right isocentre rotary fine adjustment in a longitudinal direction, and the lateral pitch fine adjustment mechanism is used for driving the bed plate to realize front-back isocentre rotary fine adjustment in a lateral direction. The medical accelerator treatment bed of the invention can realize multi-dimensional movement and can realize side turning, pitch fine adjustment correction and precise positioning. The medical accelerator treatment bed has the advantages of simple structure, overall small sizeand stable operation.

Description

technical field [0001] The invention relates to the field of radiotherapy equipment, in particular to a medical accelerator treatment bed. Background technique [0002] With the popularization of radiotherapy, doctors can accurately position the diseased part of the patient during radiotherapy, and perform corresponding radiotherapy on the lesion through the provided three-dimensional images, thereby reducing the damage to other normal tissues. [0003] The treatment couch can realize the four-dimensional movement in the XYZ direction and around the isocenter through the three-dimensional treatment couch of the medical accelerator treatment couch lifting system with the application number 201520811586.X and a radiation therapy system with the application number 200520119822.8. [0004] Among them, the cantilever structure with the application number 201520811586.X cannot be corrected due to the uneven force on the left and right of the bed board, resulting in the left and ri...

AI Technical Summary

Problems solved by technology

Since the bracket of the lateral movement mechanism of the treatment bed is set on the base, and the lifting mechanism is supported on both sides of the treatment bed through a linear motion mechanism, the difference in the lifting range of the lifting mechanisms on both sides can be adjusted to adjust the above-mentioned factors caused by insufficient force on the left and right sides of the bed board. However, when the bed board moves back and forth, due to the rigidity of the bed board itself, the error caused by the elastic deformation of the bed board at the isocenter cannot be corrected in a four-degree-of-freedom bed, and it is urgent to improve it.

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