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. 10, 2010
Filed:
Jul. 28, 2007
Steve Axelrod, Los Altos, CA (US);
James E. Jervis, Atherton, CA (US);
Paul A. Lovoi, Saratoga, CA (US);
Steve Axelrod, Los Altos, CA (US);
James E. Jervis, Atherton, CA (US);
Paul A. Lovoi, Saratoga, CA (US);
Xoft, Inc., Sunnyvale, CA (US);
Abstract
A balloon brachytherapy applicator has either a single or double chambers, with the capability of 'blistering' outwardly at a specified area on one side of the balloon. This is useful to move sensitive tissue farther away from a radiation source within a source guide inside the balloon. In one case a secondary compartment is formed on the primary balloon, and is separately inflatable so as to allow blistering as desired when needed. In another form the balloon comprises a single chamber but with a 'window' or area in which the balloon wall is elastic, or substantially more elastic than the main balloon wall, so that inflation of the balloon up to a certain point forms a substantially regular balloon shape, and the addition of further pressure will blister out the elastic area to increase the distance between the shaft and the sensitive tissue in a desired orientation of the balloon.