Patent ID: 7620147
Filing Date: 2009-11-17
Classification: A61B,A61N

Abstract:
1. A system, for treating a target tissue with x-ray radiation, comprising: a radiation source that emits x-rays, the x-rays having an energy between about 1 KeV and about 300 KeV; a collimator that collimates the emitted x-rays into an x-ray beam, the collimator having an inner cross-sectional dimension, the x-ray beam having a dose distribution at a beam spot in a plane at the target tissue, such that a dose of the x-ray beam at a region within the plane is less than about 20% of the dose at a centroid of the beam spot; an alignment system that aligns the x-ray beam with an axis traversing the target tissue and that positions the radiation source within about 50 cm from the target tissue; and a processing module that receives an input comprising a parameter of the target tissue and that, based on the parameter, outputs to the alignment system a direction for the x-ray beam to be emitted toward the target tissue.