Radiation treatment using x-ray source
US7885382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2007 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Jun 3, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/1061
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.