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Particle radiation therapy apparatus

A treatment device and particle beam technology, which is applied in the fields of treatment, radiation detection device, X-ray/γ-ray/particle irradiation therapy, etc.

Active Publication Date: 2020-09-25
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similar to the rotating gantry type, in order to locate the lesion at the aiming point (isocenter) of the particle beam, the bed on which the patient lies is moved to confirm the position, but the patient's body may be moved in order to change the incident direction of the beam. Changes in body position and bed position

Method used

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no. 1 approach

[0025] Embodiments of the present invention will be described below based on the drawings.

[0026] figure 1 It is a figure showing the treatment room 11 provided with the particle beam therapy apparatus 10 of 1st Embodiment. In this way, the particle beam therapy apparatus 10 includes: the bed 15 that moves in the space of the treatment room 11 to position the patient 12; 36b) The transported particle beam; the horizontal direction imaging unit 21 is composed of the first X-ray source 25 and the first X-ray detector 26 facing each other across the bed 15 along the horizontal line; the vertical direction imaging unit 22, It is composed of a second X-ray source 27 and a second X-ray detector 28 opposed to each other across the bed 15 along a vertical line; the storage room 18 is arranged on the ground side 17 of the treatment room 11, and the horizontal direction is not used. The first X-ray detector 26 is stored under the ground during the imaging unit 21; The imaging unit ...

no. 2 approach

[0065] Next, refer to Figure 4 A second embodiment of the present invention will be described. In the second embodiment, the overall configuration other than the X-ray detector of the horizontal direction imaging unit is the same as that of the first embodiment, and thus redundant description will be omitted.

[0066] Figure 4 (A) is a perspective view of an X-ray detector applied to the horizontal imaging unit of the particle beam therapy apparatus according to the second embodiment. Figure 4 (B) is a vertical cross-sectional view showing a state in which the X-ray detector is stored in the storage room. Figure 4 (C) is a longitudinal sectional view showing the state of the X-ray detector in use.

[0067] In the particle beam therapy apparatus according to the second embodiment, the second support for supporting the X-ray detector 26 and making it rotate and displace in the direction along the detection surface is provided in the storage room 18b provided on the ground...

no. 3 approach

[0071] Next, refer to Figure 5 A third embodiment of the present invention will be described. In the third embodiment, the overall configuration other than the X-ray detector of the horizontal direction imaging unit is the same as that of the first embodiment, and thus redundant description will be omitted.

[0072] Figure 5 (A) is a perspective view of the X-ray detector applied to the horizontal imaging unit of the particle beam therapy apparatus according to the third embodiment. Figure 5 (B) is a vertical cross-sectional view showing a state in which the X-ray detector is stored in the storage room. Figure 5 (C) is a vertical cross-sectional view showing a state in which an X-ray detector is used.

[0073] In the particle beam therapy apparatus according to the third embodiment, a third support member that supports the X-ray detector 26 and rotates and displaces it in a direction perpendicular to the detection surface is provided in the storage room 18c provided on ...

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Abstract

Provided is a particle radiation therapy apparatus which can cause an X-ray imaging device to be retracted without unnecessarily occupying available space in a treatment room, thereby improving work efficiency for the medical staff. A particle radiation therapy apparatus 10 includes: a bed 15 that positions a patient 12; an irradiation port 16 (16a, 16b) that outputs, in a treatment room 11, a particle radiation beam transported through a fixed beam transport path; a horizontal direction imaging unit 21 that includes a first X-ray source 25 and a first X-ray detector 26 which are opposed alonga horizontal line with the bed 15 therebetween; a vertical direction imaging unit 22 that includes a second X-ray source 27 and a second X-ray detector 28 which are opposed along a vertical line withthe bed 15 therebetween; an accommodation chamber 18 which accommodates the first X-ray detector 26 under the floor when the horizontal direction imaging unit 21 is not in use; and a support member 23 that moves the first X-ray detector 26 so as to be above the floor and supports same between the bed 15 and the irradiation port 16 when the horizontal direction imaging unit 21 is in use.

Description

technical field [0001] Embodiments of the present invention relate to a fixed irradiation type particle beam therapy device. Background technique [0002] Particle beam therapy is widely known in which a patient's lesion tissue (cancer) is irradiated with particle beams such as carbon ions and cations. When the particle beam passes through the patient's body, it loses kinetic energy to reduce its speed, and when it is reduced to a certain speed due to resistance approximately inversely proportional to the square of the speed, it stops abruptly. And, near the stop point of the particle beam, a high energy called Bragg peak is released. [0003] The particle beam therapy technique matches the Bragg peak with the lesion of the patient, thereby reducing the obstruction of normal tissue and performing treatment. This particle beam therapy technology can precisely kill only the lesion tissue without damaging normal tissues, so compared with surgery, drug therapy, etc., it can al...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61B6/0487A61B6/42A61B6/4452A61B6/4464A61B6/44A61B6/4266A61N2005/1087A61N5/1078A61N5/1049A61N2005/1061A61N2005/1097A61N5/1043A61B6/025A61B6/0407A61B6/4429
Inventor 长本义史笠井茂吉行健
Owner KK TOSHIBA
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