Patent ID: 8358737
Filing Date: 2013-01-22
Classification: A61N

Abstract:
1. An X-ray treatment apparatus irradiating to a lesion of a patient lying on a couch from different positions more than once, comprising: at least one movable marker sensor including a low energy X-ray generator and an image sensor corresponding to the low energy X-ray generator detecting a position relative to the couch of a marker fixed in the patient while maintaining a predetermined positional relationship of the marker to the lesion and obtaining data of the lesion; a couch operative means changing a position and a posture of the couch; a movable X-ray source for treatment controlling a beam profile and dosage of the X-ray for treatment by deflecting electron beams; movable X-ray sensor for treatment detecting the X-ray irradiated by the X-ray source for treatment, said X-ray having penetrated the lesion before being detected; an X-ray source for treatment operative means supporting the X-ray source for treatment, turned toward the lesion and controlling the position and posture of the X-ray source for treatment; and a central processing unit calculating a profile and dosage of the X-ray for treatment corresponding to a position of the lesion specified by outputs of the marker sensor based on a treatment plan, generating control signals to the X-ray source for treatment and the operative means, modifying the treatment plan according to output data of the X-ray sensor for treatment, and generating the next control signal to the X-ray source for treatment and the operative means.