Patent ID: 6377846
Filing Date: 2002-04-23
Classification: A61N,H01J

Abstract:
A device for delivering localized x-ray radiation in a patient's vascular system, the device comprising:a shaft, including a proximal and a distal portion; a vacuum housing coupled to the distal portion of the shaft, the vacuum housing having an outside, the vacuum housing having an outer diameter less than or equal to approximately two and one-half millimeter; an anode disposed within the vacuum housing; a cathode structure disposed within the vacuum housing, the cathode structure including a thin diamond film, the thin diamond film being operative with the anode to produce the localized x-ray radiation, and a first electrical field associated with the cathode and anode; a conductive layer on the vacuum housing outside, the conductive layer being electrically connected to the cathode, and a second electrical field associated with the conductive layer; and an insulator for insulating the first electrical field from the second electrical field.