Neutron capture therapy system

A treatment system and neutron technology, applied in the fields of treatment, X-ray/γ-ray/particle irradiation therapy, radiotherapy, etc., can solve the problems of long construction and installation time, high labor cost and high manufacturing cost, and achieve improved applicability and savings. The effect of design time

Pending Publication Date: 2019-01-11
DONGGUAN DONGYANGGUANG GAONENG MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that in the existing neutron capture therapy system, the beam shaper designed according to the beryllium target can only be applied to the beryllium target. If it is to be replaced with a target made of other materials, it is necessary to redesign and install corresponding beams for different targets. special beam shaping body, design, construction and installation time is long, labor cost and manufacturing cost are high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] figure 1 A neutron capture therapy system applicable to different targets provided in Embodiment 1 of the present invention specifically includes:

[0048] proton beam 1;

[0049] The neutron generating part includes a detachable target 5, and the proton beam 1 bombards the target 5 to generate a neutron beam;

[0050] The beam shaper is used to adjust the neutron beam to meet the treatment standard, including a moderator 6, a beam filter, and a collimator 9 connected in sequence, and the collimator 9 is provided with a beam outlet 10 , the moderator body 6 is surrounded by a reflector 3 .

[0051] Specifically, in this embodiment, the target material 5 is a lithium target or a beryllium target, the proton beam energy and beam intensity are a fixed value, and the length and width of the moderator 6, reflector 3, collimator 9 and beam filter is a fixed value.

[0052] The neutron capture therapy system provided in this embodiment selects a suitable range of proton be...

Embodiment 2

[0091] On the basis of the foregoing embodiments, the present embodiment also includes:

[0092] The longitudinal rail 13 is parallel to the incident direction of the proton beam 1 , and the first reflector 31 is slidably installed on the longitudinal rail 13 .

[0093] figure 2 A schematic diagram of the longitudinal rail 13 in the neutron capture therapy system of this embodiment is shown. Specifically, when the neutron capture therapy system is in use, the first reflector 31 and the second reflector 32 are closely connected, and the reflector can guide the beam back to the axis on which the beam is reversed, and can prevent the neutron beam from flowing. Penetrate the reflector and launch into the air to cause harm to the human body, ensuring the normal operation of the neutron capture therapy system; when the neutron capture therapy system is in the state of replacing the target material, the replacement of the target material 5 is facilitated by the work of the longitud...

Embodiment 3

[0096] Figure 3-Figure 4 Shown is a neutron capture therapy system provided by Embodiment 3 of the present invention, wherein image 3 is a top view sectional view, Figure 4 It is a side view sectional view, and on the basis of the foregoing embodiments, the present embodiment also includes:

[0097] The transverse track 12 is perpendicular to the incident direction of the proton beam 1 , and the second reflector 32 is slidably installed on the transverse track 12 .

[0098] Specifically, the transverse track 12 includes a plurality of sub-rails, the second reflector 32 includes a plurality of sub-reflectors, and each sub-reflector is slidably installed on a sub-rail, and the moderator 6 includes a plurality of sub-reflectors. As for the sub moderators, each sub moderator is correspondingly installed in a sub reflector, and the center line of each sub reflector and sub moderator is on the center line of the beam channel 2 .

[0099] Different patients have different tumor...

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Abstract

The invention discloses a neutron capture therapy system, being applicable to different targets, in particular comprising: a proton beam; a neutron generating part including a detachable target material on which a neutron beam is generated by proton beam bombardment; a beam shaping body for adjusting the neutron beam to conform to the treatment standard, comprising a moderator, a beam filter, a collimator, a target material of lithium or beryllium, a proton beam energy of a fixed value, a moderator, a reflector, a collimator and a beam filter of a fixed value in length and width; the target material can be replaced in lithium target and beryllium target without changing the energy of proton beam and the size of beam shaper. As a result, the neutron capture treatment system can be simultaneously applied to a lithium target and a beryllium target. When the target material is replaced by a lithium target or a beryllium target, the proton energy and the beam shaping body structure do not need to be changed, and the emitted neutron beam can still meet the irradiation requirements, so as to effectively treat the patient.

Description

technical field [0001] The invention relates to the field of neutron capture therapy, in particular to a neutron capture therapy system, in particular to a neutron capture therapy system applicable to different targets. Background technique [0002] With the rapid development of modern medical technology, boron neutron capture therapy has been widely used in clinical medicine. [0003] BNCT (Boron Neutron Capture Therapy, Boron Neutron Capture Therapy) is a bio-targeted radiotherapy mode with "inherent" safety, by injecting non-toxic boron-containing drugs with pro-tumor tissue into human blood, waiting for boron drugs to After being enriched in tumor tissue, epithermal neutrons are used to irradiate the tumor site. Epithermal neutrons enter human tissue and can interact with 10 The B nuclide undergoes a radiation capture reaction, releasing α particles ( 4 He) and lithium particles ( 7 Li). Due to the short range of these particles (similar to the diameter of the tissu...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/103A61N5/1048A61N5/1077A61N2005/1087A61N2005/1092A61N2005/109
Inventor 黄红李国威
Owner DONGGUAN DONGYANGGUANG GAONENG MEDICAL EQUIP CO LTD
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