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:
Jul. 13, 2010
Filed:
Jan. 06, 2009
Hong Seok Jang, Seoul, KR;
Hoi Nam Kim, Seoul, KR;
Tae Suk Suh, Seoul, KR;
Ji NA Chang, Gyeonggi-do, KR;
Seoung Jong OH, Seoul, KR;
Won Kyun Jung, Gyeonggi-do, KR;
Teak Kwon Kim, Gyeonggi-do, KR;
Hong Seok Jang, Seoul, KR;
Hoi Nam Kim, Seoul, KR;
Tae Suk Suh, Seoul, KR;
Ji Na Chang, Gyeonggi-do, KR;
Seoung Jong Oh, Seoul, KR;
Won Kyun Jung, Gyeonggi-do, KR;
Teak Kwon Kim, Gyeonggi-do, KR;
Catholic University Industry Academic Cooperation Foundation, University, unknown;
Abstract
A calibration phantom for quality assurance of an image-based radiotherapy apparatus The calibration phantom includes a body comprising a cylindrical acryl member having a predetermined diameter, the body having a center hole at a center axis thereof and a plurality of through-holes in outer circumferential portions thereof at a predetermined interval from the center hole; round stick-type density bars inserted into corresponding through-holes of the body and made of materials each with different densities; an acrylic cover detachably coupled with both ends of the body and having the same diameter as the body; and a plurality of bolts closely fastening the body with the cover by extending through the cover and the body and coupling with the nuts and each made of different materials. The cross-sectional shapes of the density bars and bolts appear on the image scanned by the CT apparatus and the radiotherapy apparatus.