Abdominal pressure breathing control device for magnetic resonance accelerator

Abstract

The invention discloses an abdominal pressure breathing control device for a magnetic resonance accelerator and relates to the field of auxiliary equipment of a magnetic resonance imaging (MRI) and amedical linear accelerator. The abdominal pressure breathing control device is capable of quantitatively controlling aspiration amplitude of a patient and making a scale record. The abdominal pressurebreathing control device comprises a fixing structure fixedly arranged on a bed board of the magnetic resonance accelerator, a plurality of body diaphragm fixing gears are arranged on the two sides of the fixing structure symmetrically, the body diaphragm fixing gears are used to connect the body diaphragms; abdomen positioning diaphragms are connected to the two sides of the fixing structure, and the connection position of two ends of the abdomen position diaphragms and the fixing structure can be adjusted; an abdominal pressure belt is also arranged on the fixing structure, one end of the abdominal pressure belt is fixedly connected with the one side of the fixing structure, and the other end of the abdominal pressure belt is connected to the other side of the fixing structure through afastener; and a negative pressure bag is arranged on the fixing structure to fix the position of a patient. The abdominal pressure breathing control device for the magnetic resonance accelerator caneffectively and repeatedly limit breathing of a patient when the magnetic resonance accelerator works.

Description

technical field [0001] The invention relates to the technical field of nuclear magnetic resonance and medical accelerator auxiliary equipment, in particular to an abdominal pressurization breathing motion control device for a magnetic resonance accelerator. Background technique [0002] Nuclear magnetic resonance accelerator is currently the most advanced radiotherapy equipment in the world. It not only combines the advantages of non-ionizing radiation and high soft tissue contrast of magnetic resonance imaging, but also combines the radiotherapy advantages of medical electron accelerators, and has attracted extensive attention from the medical community. During the radiotherapy process, the MRI accelerator can still perform nuclear magnetic imaging, and can monitor the tumor movement in real time and detect the displacement of the target area more intuitively. Therefore, compared with the ordinary linear accelerator, the radiotherapy process is more intuitive and accurate. ...

AI Technical Summary

Problems solved by technology

However, compared with tumors with little change in body position, thoracoabdominal tumors have a larger range of motion due to the influence of respiratory movement, resulting in a larger expansion range when delineating the target area, which may easily cause high doses of radiation to surrounding normal tissues, resulting in unhealthy tumors. Necessary tissue irradiation

In addition, if the patient moves after each positioning, it will affect the quality of radiotherapy in the slightest, and in severe cases will cause damage to other normal organs

[0003]Existing linear accelerator pressurization devices usually use metal fixing blocks to fix the patient's chest and abdomen movement, but magnetic resonance accelerators are combined with magnetic resonance equipment, which requires coils to cover the lesion. Imageable

The longest diameter of the general-purpose phantom fixture exceeds the aperture of the magnetic resonance accelerator, and it has little effect on the improvement of the displacement of abdominal lesions. It is difficult to apply it to this accelerator. Therefore, it is imminent to design a new suitable abdominal compression device.

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