Proton radiotherapy chair for realizing sitting posture radiotherapy in fixed beam treatment room

Abstract

The invention belongs to the field of radiotherapy equipment, and particularly discloses a proton radiotherapy chair for realizing sitting posture radiotherapy in a fixed beam therapy room, which comprises a head fixing part, an inclined moving part, a height adjusting part, a seat part, a lifting moving part and a two-dimensional translation moving part which are sequentially connected from top to bottom, wherein the head fixing part is used for fixing the head of a patient, the inclined moving part is used for driving the head fixing part to incline front and back and left and right, and the height adjusting part is used for adjusting the relative height of the head fixing part and the seat part; and the lifting moving part and the two-dimensional translation moving part are respectively used for driving the seat part to move in the vertical direction and the horizontal plane. According to the invention, six-degree-of-freedom movement of the treatment chair and adjustment of the height and angle of the head of a patient can be realized, and the requirements of sitting radiotherapy in a fixed beam treatment room are met.

Description

technical field [0001] The invention belongs to the field of radiation therapy equipment, and more specifically relates to a proton radiation therapy chair used in a fixed-beam therapy room to realize radiation therapy in a sitting position. Background technique [0002] Compared with the commonly used X-rays or γ-rays, proton radiotherapy has high precision and less toxic and side effects, and has become one of the most advanced radiotherapy technologies in the world. The conventional radiotherapy posture is supine, and the patient lies supine or prone on the treatment table for radiotherapy. However, for patients with diseases such as bronchial cancer and superior vena cava compression syndrome, the common symptoms are chest tightness, dyspnea, and inability to lie flat. In addition, for patients with excessive salivary secretion or severe hunchback due to certain tumors, lying on the prone or supine will cause discomfort, and it will be more comfortable for such patients...

AI Technical Summary

Problems solved by technology

In the prior art, for example, patent CN 110201315 A discloses a movable medical device. The treatment chair required for radiotherapy can move above the retractable floor, and the drive system, transmission mechanism and other devices are all set on the retractable floor. Below, this invention can effectively move the treatment chair and reduce the exposure of the device, but due to the special location of the device, it needs to be hollowed out under the retractable floor and the device maintenance is difficult

Patent CN203379503U discloses a 360-degree treatment device suitable for fixed hadron beams. The six-degree-of-freedom positioning of the seat is realized through the lifting mechanism, the rotating arm assembly, the rotating arm assembly and the rotating disk, and it can perform multiple treatments on tumors from the head to the upper abdomen. Angle irradiation treatment, but the device has a long cantilever and takes up a lot of space, whether its positioning accuracy can meet the requirements is worth considering

Patent CN107007946A discloses an automatic chair for proton and heavy ion treatment of head and neck cancer. Axial translation and precise positioning are respectively achieved through a three-dimensional translation platform and a six-degree-of-freedom parallel platform. The invention expands the The range of motion of the automatic chair solves the coupling problem of the six-degree-of-freedom parallel platform, but the automatic chair fails to fix the positions of patients of different heights

[0004] Therefore, there are some problems in the existing proton radiation therapy chairs: 1) It is difficult to adapt to the treatment parts of patients with different sitting heights and achieve a fixed body position; 2) The treatment chair and the patient are turned or pitched together, which makes the structure of the moving parts under the treatment chair complicated , Difficult to maintain; 3) The treatment chair takes up a lot of space, and the distance between the treatment part and the floor is high

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