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. 02, 2010
Filed:
Dec. 07, 2007
Roger Svensson, Värmdö, SE;
Anders Brahme, Danderyd, SE;
Roger Svensson, Värmdö, SE;
Anders Brahme, Danderyd, SE;
C-Rad Innovation AB, Uppsala, SE;
Abstract
A collimator () primarily adapted for usage in a narrow scanned pencil beam radiation therapy system () includes adjacent pairs () of collimator leaves (). An inner portion () of a collimator leaf () facing the opposite leaf () of a pair () is made of a first material having high linear radiation attenuation. The remaining, major portion () of the leaf () is made of a second material having a comparatively low density, weight and radiation attenuation. The collimator () provides effective penumbra trimming of a radiation beam (), while simultaneously protecting healthy tissue around a tumor in an irradiated patient () from the radiation. The new design results in a significantly more compact, lighter and less expensive collimator () as compared to traditional collimators.