The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 25, 2019

Filed:

Sep. 14, 2017
Applicant:

Neuboron Medtech Ltd., Nanjing, Jiangsu, CN;

Inventors:

Yuan-hao Liu, Jiangsu, CN;

Wei-lin Chen, Jiangsu, CN;

Pei-yi Lee, Jiangsu, CN;

Ming-chuan Chang, Jiangsu, CN;

Wenyu Xu, Jiangsu, CN;

Assignee:

NEUBORON MEDTECH LTD., Nanjing, Jiangsu, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G21K 5/04 (2006.01); A61N 5/10 (2006.01); G21G 4/02 (2006.01); C04B 35/553 (2006.01); C04B 35/645 (2006.01);
U.S. Cl.
CPC ...
A61N 5/1077 (2013.01); A61N 5/1042 (2013.01); C04B 35/553 (2013.01); C04B 35/645 (2013.01); C04B 35/6455 (2013.01); G21G 4/02 (2013.01); G21K 5/04 (2013.01); A61N 2005/109 (2013.01); A61N 2005/1094 (2013.01); A61N 2005/1095 (2013.01);
Abstract

A beam shaping assembly for neutron capture therapy includes a beam inlet, a target having nuclear reaction with an incident proton beam from the beam inlet to produce neutrons forming a neutron beam, a moderator adjoining to the target, a reflector surrounding the moderator, a thermal neutron absorber adjoining to the moderator, a radiation shield arranged inside the beam shaping assembly and a beam outlet. The material of the moderator is subjected to a powder sintering process using a powder sintering device so as to change powders or a power compact into blocks. The reflector leads the neutrons deviated from the main axis back. The thermal neutron absorber is used for absorbing thermal neutrons so as to avoid overdosing in superficial normal tissue during therapy. The radiation shield is used for shielding leaking neutrons and photons so as to reduce dose of the normal tissue not exposed to irradiation.


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