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. 20, 2018
Filed:
Jan. 17, 2013
Applicant:
Elekta Ab (Publ), Stockholm, SE;
Inventor:
Per Carlsson, Stockholm, SE;
Assignee:
Elekta AB (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N 5/00 (2006.01); A61B 6/00 (2006.01); A61B 6/03 (2006.01); A61N 5/10 (2006.01);
U.S. Cl.
CPC ...
A61B 6/542 (2013.01); A61B 6/032 (2013.01); A61B 6/035 (2013.01); A61N 5/1037 (2013.01);
Abstract
Intra-fraction movement of the patient puts at risk sensitive regions that are near to a radiation dose. In a radiotherapy system that delivers a dose as a series of discrete sub-doses, an initial CT scan is performed to determine the patient's position, after which the sub-doses that are directed to regions within a preset distance of a sensitive structure are performed first, while the sub-doses directed to regions that are more remote from a sensitive structure are performed later.