Radiotherapy simulation treatment bed based on multi-servo control

Abstract

The invention discloses a radiotherapy simulation treatment bed based on multi-servo control. The treatment bed comprises an x-direction moving mechanism, a y-direction moving mechanism, a z-directionlifting mechanism, a rotating mechanism, a treatment bed board and a treatment bed lower supporting frame. Electric energy is provided by the driving power supply, the upper computer is connected with the x-direction servo driver, the y-direction servo driver, the z-direction servo driver and the rotary servo driver through a CAN bus to achieve parallel control over the x-direction moving mechanism (I), the y-direction moving mechanism, the z-direction lifting mechanism and the rotary mechanism, and therefore accurate control over the bed board of the treatment bed is achieved. The inventionhas the beneficial effects that synchronous and independent closed-loop control of each servo motor is realized; the coupling between the motors is reduced, the positioning accuracy and positioning precision of the treatment bed are effectively improved, the minimum error coincidence of a focus part and a treatment radiation field area is realized, the radiation field shape and the target area center required by treatment are optimal, and the radiation dose absorption of important organs of a patient is reduced to the maximum extent.

Description

technical field [0001] The invention relates to a simulation treatment equipment used in the radiotherapy process, in particular to a radiotherapy simulation treatment couch based on multi-servo control. Background technique [0002] Malignant tumors are one of the major diseases that threaten human health, and cancer is still the number one cause of death. Radiation therapy for tumors has become one of the most important means of treating tumors. In the process of treating tumors, the high precision of the cancer treatment bed is the prerequisite for curing cancer patients. Precision radiotherapy is a new tumor radiotherapy technology performed on the treatment machine. With the increasing incidence of tumors, many experts and scholars have conducted in-depth research on the topic of cancer treatment, and cancer treatment beds are one of them. The number of cancer treatment beds per million people in my country is far less than that of developed countries. As a mechanica...

AI Technical Summary

Problems solved by technology

Because the location and size of the irradiated lesion and the treatment radiation field are too large during radiotherapy, it will increase the absorbed dose of vital organs

The existing research on the radiotherapy simulation treatment bed mainly focuses on the improvement of the mechanical structure, the control of the lifting mechanism components, and the analysis of the movement process, but lacks the research on the overall control of the treatment bed

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