Tumor radiotherapy positioning device

Abstract

The invention discloses a tumor radiotherapy positioning device and belongs to the technical field of medical device auxiliary devices. The positioning device comprises a radiotherapy bed, a protection device and a positioning device. The radiotherapy bed comprises a first bed body and a second bed body. A headrest and two holding rods are arranged on the first bed body. The protection device comprises two protection plates, a radiotherapy window and two vertical plates. The protection plates are slidably connected with the radiotherapy window. The radiotherapy window is slidably connected with the two vertical plates and the radiotherapy bed. The positioning device comprises at least four positioning pots, an air extracting pump and a positing plate. The lower end of each positioning potis opened. A thread column and a nozzle are arranged on the upper top face of each positioning pot. A thread hole is arranged in the positioning plate. The positioning plate is in threaded connectionwith the thread columns. The air extracting pump is connected with the nozzle. A through hole with adjustable size is arranged in the positioning plate and is formed by multiple connected annular pieces. Adjacent annular pieces are in threaded connection with each other. According to the invention, the positioning device is accurate in positioning and damage to body of a patient is small.

Description

technical field [0001] The invention relates to the technical field of medical device auxiliary devices, in particular to a positioning device for tumor radiotherapy. Background technique [0002] Radiation therapy is radiation therapy, which refers to the use of rays to eliminate lesions, and to irradiate cancerous parts with radiation such as X-rays, γ-rays, and electron rays. Due to the biological effects of radiation, it can kill cancer tissue in the largest amount, destroy cancer tissue, and shrink it. Radiation therapy is one of the important means of treating malignant tumors. However, during radiotherapy, due to inaccurate positioning or the patient's body shifting during radiotherapy, the radiation will irradiate normal tissues, causing damage to normal tissues and causing corresponding side effects. Therefore, in radiation therapy, it is necessary to accurately locate the patient's tumor position to minimize the damage to normal tissues caused by radiation therapy...

AI Technical Summary

Problems solved by technology

However, during radiotherapy, due to inaccurate positioning or the patient's body shifting during radiotherapy, the rays will irradiate normal tissues, causing damage to normal tissues and causing corresponding side effects

Therefore, in radiation therapy, it is necessary to accurately locate the patient's tumor position to minimize the damage to normal tissues caused by radiation therapy. At present, the precise positioning devices commonly used in radiation therapy include electronic portal imaging devices, digital X-ray machines, and stereotaxic imaging devices. Frames, etc., the electronic portal imaging device and digital X-ray machine installed on the radiotherapy machine can realize the precise positioning of the tumor position, but the price is expensive, and the patient has to receive additional doses of X-ray irradiation, and when the radiotherapy machine emits beams, these The imaging equipment needs to be turned off, so that during the treatment process, when the patient moves, the correction cannot be performed, the cells in the lesion cannot receive irradiation, and the normal cells in the normal tissue are killed, causing certain damage to the patient

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