Patient limiting and adjusting system based on tumor radiotherapy

Abstract

The invention discloses a patient limiting and adjusting system based on tumor radiotherapy. A positioning bed plate of the system comprises a head bed plate, a shoulder bed plate and a main bed plate, a lead screw shaft in a second transmission cavity of the patient limiting and adjusting system penetrates through a second sliding block, and one end, extending out of a bearing plate, of a driving shaft is provided with a shaft neck which is sunken into an annular groove. The shaft neck can be clamped by a U-shaped notch of a clamping plate which is vertically installed on the right end face of the bearing plate in a sliding fit mode, a clamping plate can be fixed when sliding to the position where the shaft neck is clamped, a shaft-shaped gear is meshed with the rack, and the screw rod section penetrates through the side wall of a mounting frame in an axial non-contact fit mode and then is in threaded connection with a bearing plate, so when the screw rod section is axially screwed in the bearing plate, the shaft-shaped gear in the mounting frame rotates and horizontally moves at the same time, and a first sliding block is driven to move in the vertical direction while the first sliding block is pushed to horizontally move. The body position of a patient can be flexibly adjusted, and the system is simple, reliable and easy to maintain and manufacture.

Description

technical field [0001] The invention relates to the technical field of tumor radiotherapy, in particular to a patient position-limiting adjustment system based on tumor radiotherapy. Background technique [0002] Radiation therapy for tumors is a local treatment method that uses radiation to treat tumors; about 70% of cancer patients need radiation therapy during the treatment of cancer, and the patient needs to be fixed during radiation therapy, so it is necessary to Develop a device that can be used to fix the tumor in patients for adjuvant therapy. [0003] Most of the positioning devices on the market cannot be used by patients of different sizes. The overall flexibility of the positioning bed is poor, and it cannot provide local position fixation for smaller patients, and cannot ensure the smooth progress of tumor treatment. In addition, although the functions of some highly automated equipment are perfect, the structure is extremely complex, the cost is high, and the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a patient position adjustment system based on tumor radiotherapy, to solve the problem that most of the positioning devices on the market proposed in the background technology cannot be adapted to patients of different sizes, and the patient's body position adjustment ability and flexibility Poor stability, unable to ensure the smooth progress of tumor treatment and unable to improve the patient's comfort in lying position

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