Collimation system capable of realizing automatic and rapid switching

Abstract

The invention discloses a collimator device capable of achieving automatic and rapid switching, a precise movement control method of the collimator device and a collimator recognition method.The collimator device comprises a transmission assembly and at least two sets of collimator assembling assemblies, the transmission assembly is connected with the collimator assembling assemblies, the transmission assembly at least comprises a rotating base assembly, and the rotating base assembly is connected with the collimator assembling assemblies; the collimator assembling assemblies comprise collimators, and the transmission assembly can achieve automatic switching of different collimator assembling assemblies through rotation action. According to the invention, through automatic rotation, automatic identification and automatic locking of the turntable mechanism, rapid switching of different collimators is realized, and the treatment head can rapidly switch the collimators according to a treatment plan in the treatment process. The defect that time is delayed when the collimator is replaced in the prior art is overcome, the collimator can be replaced without stopping treatment under most conditions, the repeated positioning precision of the device is high, safety and reliability of a system can be guaranteed through three-level locking protection, and damage of dark current to a patient can be reduced through the blind hole collimator.

Description

technical field [0001] The invention belongs to the technical field of radiosurgery robot equipment, and in particular relates to a secondary collimator device capable of automatic and fast switching. Background technique [0002] Image-guided radiation therapy (Image Guided Radiation Therapy, IGRT) is a new technology for tumor radiation therapy that has been gradually developed in the past ten years. It uses advanced imaging equipment and image processing methods to accurately detect the target area of ​​patients during the treatment planning stage. , Outlining and treatment beam distribution planning, dose distribution calculation, accurate target positioning before treatment irradiation, and target movement tracking during treatment, to achieve precise radiation therapy for tumors and reduce damage to normal tissues and key organs around the tumor. damage. Image-guided technology is the basis of modern emerging precision radiation therapy, such as head and neck stereota...

AI Technical Summary

Problems solved by technology

Dark current is an objective phenomenon. At present, the existing accelerators have no protective measures against dark current. Dark current will directly irradiate the patient's body, resulting in exposure beyond the treatment plan.

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