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. 06, 2012
Filed:
Aug. 24, 2007
Gregory T. Martin, Somerville, MA (US);
Gregory T. Martin, Somerville, MA (US);
Cytyc Corporation, Marlborough, MA (US);
Abstract
A brachytherapy treatment device includes an insertion member, an expandable chamber, and first and second immiscible fluids. The insertion member has proximal and distal ends. The expandable chamber is disposed on the distal end of the insertion member and has an inner surface defining a three-dimensional volume. First and second immiscible fluids are disposed within the expandable chamber and have different radiation absorption properties. At least one of the first and second immiscible fluids forms a fluid radiation shield having a predetermined orientation within the three-dimensional volume. First and second immiscible fluids may have different densities and utilize fluid buoyancy to form an symmetric fluid radiation shield to create an asymmetric radiation dosing profile relative to an inner boundary of a treatment site. Methods for performing brachytherapy treatment include positioning fluids and/or a patient to form an asymmetric fluid radiation shield in a desired orientation to protect sensitive tissues.