Particle irradiation device and particle treatment system

Abstract

The invention provides a particle irradiation device and a particle treatment system. The particle radiation device is used for irradiating particle beam in a tumor zone. The particle radiation device comprises a treatment head and an irradiation control system. The treatment head comprises a bellows, a first scanning magnet, a second scanning magnet, a second vacuum box, a beam spot size regulation device, and a vacuum window beam monitoring module; the downstream of the beam monitoring module is provided with a movably connected ridge-shaped filter, a gunshot compensator and a collimator; the ridge-shaped filter is provided with a fixing device, a main body and a position regulation device which is connected to an irradiation control system in order to drive the main body to move along the changing direction of the height and the thickness in the irradiation implementation; the irradiation control systems controls the first scanning magnet and the second scanning magnet to deflect the particle beam to the position corresponding to the tumor target zone, and controls the beam monitoring module to monitor the dosage of the particle beam and the position information. The invention allows the doctor to perform either two-dimension irradiation therapy or three-dimension irradiation therapy on one device according to the clinical requirement.

Description

technical field [0001] The invention relates to the technical field of radiation therapy for cancer, in particular to a particle irradiation device and a particle therapy system. Background technique [0002] Particle radiation therapy is one of the most advanced cancer treatment methods in the world. Compared with the usual photon radiation therapy (X-ray radiation therapy), when the particles are irradiated into the patient's body, the maximum dose peak will be formed at the end of the particle range, that is, the so-called Bragg peak (Bragg Peak) will be formed. Therefore, by precisely controlling the energy of the particle beam and the irradiation position of the particle beam, high-dose particles can be concentratedly irradiated into the target tumor area, and at the same time, the unfavorable irradiation dose to the normal tissues and normal organs around the target tumor can be minimized, thereby achieving Compared with X-ray radiotherapy, the dose distribution is mo...

AI Technical Summary

Problems solved by technology

However, the three-dimensional dose distribution formed by two-dimensional irradiation is less conformable to the target area than the dose distribution of three-dimensional scanning irradiation; moreover, two-dimensional irradiation requires the manufacture of devices such as range compensators for each patient (each field of view)

However, the particle therapy device in the prior art can only provide one of two-dimensional or three-dimensional irradiation methods, and the treatment device is quite expensive, and it is difficult for general hospitals to be equipped with devices suitable for two-dimensional and three-dimensional irradiation at the same time, which limits The doctor has the freedom to choose the best irradiation method according to the different conditions of different patients and different affected parts, and the best therapeutic effect cannot be achieved.

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