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.
Patent No.:
Date of Patent:
Nov. 07, 2017
Filed:
Dec. 29, 2016
Applicant:
Elekta Ab (Publ), Stockholm, SE;
Inventors:
Virgil Willcut, Kirkwood, MO (US);
Martin Broad, Bromley, GB;
David Anthony Roberts, East Ginstead, GB;
Assignee:
Elekta AB (Publ), Stockholm, SE;
Primary Examiner:
Int. Cl.
CPC ...
A61N 5/10 (2006.01); G21K 1/04 (2006.01); G21K 1/02 (2006.01);
U.S. Cl.
CPC ...
A61N 5/1045 (2013.01); A61N 5/1077 (2013.01); G21K 1/025 (2013.01); G21K 1/046 (2013.01);
Abstract
A collimator for a radiotherapy apparatus comprising a block of radiation-attenuating material having a front face forming the leading edge of the block and at least one main rear face defining the trailing edge of the block, in which the least one main rear face has a material disposed thereon and is non-parallel to the front face. The collimator may form part of a radiotherapy apparatus, and methods of operation of such apparatus are described.