Device for delivering localized x-ray radiation and method of manufacture
First Claim
Patent Images
1. 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.
3 Assignments
0 Petitions
Accused Products
Abstract
Generally, the present invention provides a device for insertion into a body of a subject being treated to deliver localized x-ray radiation, and a method for fabricating such a device. The device includes a cathode structure that has a thin, diamond film as a cathode. The device further comprises a vacuum housing and an anode. A method for fabricating a device for localized x-ray radiation is described which includes the formation of a thin diamond film on a getter at temperatures below an activation temperature of the getter.
-
Citations
13 Claims
-
1. 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification