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:
Aug. 24, 2010
Filed:
Oct. 08, 2004
Daren L. Stewart, Belmont, CA (US);
Paul A. Lovoi, Saratoga, CA (US);
Thomas W. Rusch, Hopkins, MN (US);
Alex Lim, Santa Clara, CA (US);
Darius Francescatti, Barrington, IL (US);
Daren L. Stewart, Belmont, CA (US);
Paul A. Lovoi, Saratoga, CA (US);
Thomas W. Rusch, Hopkins, MN (US);
Alex Lim, Santa Clara, CA (US);
Darius Francescatti, Barrington, IL (US);
Xoft, Inc., Sunnyvale, CA (US);
Abstract
Methods and apparatus are described for irradiating living tissue via a cavity or lumen, using an inflatable balloon applicator. In a preferred embodiment the applicator balloon has a balloon skin with x-ray contrast material in relatively low concentration, so that an outline of the balloon will appear sharply when imaged externally. In another preferred embodiment the balloon catheter has a drain for withdrawing liquids from the cavity, which may include channels or texture on the exterior of the balloon. Methods are described for using a switchable miniature x-ray tube, variable as to voltage and current, to achieve accuracy in an isodose profile.