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US6095966A Expired / Lapsed US ⏱️ 0.0 years remaining

X-ray device having a dilation structure for delivering localized radiation to an interior of a body

Assignee: Medtronic Vascular Inc
•
Filing: 1998-02-20
•
Granted: 2000-08-01
•
Expires: 2018-02-20
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Abstract

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 use of such a device. The device includes an anode and a cathode, disposed within a vacuum housing. The device further includes a balloon coupled to and circumferentially surrounding the vacuum housing, and a fluid loop for circulating a cooling fluid proximate to the vacuum housing. A method for delivering localized x-ray radiation to an interior passage of a body is also described, including the steps of positioning an x-ray device at the passage to be treated and applying a high voltage to the x-ray producing unit to produce localized x-ray radiation.

Inventors

  • 👤 Victor I. Chornenky
  • 👤 Michael R. Forman
  • 👤 Robert A. Ganz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 19:29
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/10; A61N5/1001; H; H01; H01J; H01J35/00; H01J35/32; A61N5/1002; H01J2235/00; H01J2235/20; H01J2235/205

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 95 words
An x-ray device for delivering localized radiation to the interior of a body, comprising: an anode and a cathode, disposed within a vacuum housing, the anode and the cathode arranged to produce the localized x-ray radiation; a flexible shaft having distal and proximal portions, where the vacuum housing is coupled to the distal portion of the shaft; and a balloon coupled to and circumferentially surrounding the vacuum housing, the balloon being in fluid communication with a fluid loop for providing a fluid in an interior of the balloon, the balloon being inflatable by the fluid.
Claim 2
Dependent Claim 95 words
An x-ray device for delivering localized radiation to the interior of a body, comprising: an anode and a cathode, disposed within a vacuum housing, the anode and the cathode arranged to produce the localized x-ray radiation; a flexible shaft having distal and proximal portions, where the vacuum housing is coupled to the distal portion of the shaft; and a balloon coupled to and circumferentially surrounding the vacuum housing, the balloon being in fluid communication with a fluid loop for providing a fluid in an interior of the balloon, the balloon being inflatable by the fluid.
Claim 3
Dependent Claim 23 words
The device of claim 1, further comprising a getter in the vacuum housing, for improving and maintaining vacuum conditions in the vacuum housing.
Claim 4
Dependent Claim 19 words
The device of claim 2, wherein the getter has an activation temperature between about 300 and 900 degrees C.
Claim 5
Dependent Claim 23 words
The device of claim 3, wherein the getter comprises material selected from the group consisting of zirconium, aluminum, vanadium, iron, and combinations thereof.
Claim 6
Dependent Claim 25 words
The device of claim 1, wherein the shaft further includes a second fluid loop for circulating a fluid to the distal portion of the shaft.
Claim 7
Dependent Claim 23 words
The device of claim 1, wherein the shaft and the vacuum housing have an outer diameter less than or equal to 3 millimeters.
Claim 8
Dependent Claim 23 words
The device of claim 1, wherein the shaft and the vacuum housing have an outer diameter less than or equal to 2 millimeters.
Claim 9
Dependent Claim 12 words
The device of claim 1, wherein the vacuum housing is substantially cylindrical.
Claim 10
Dependent Claim 10 words
The device of claim 1, wherein the balloon is elastic.
Claim 11
Dependent Claim 16 words
The device of claim 1, wherein the flexible shaft comprises conductors for providing a high voltage.
Claim 12
Dependent Claim 95 words
An x-ray device for delivering localized radiation to the interior of a body, comprising: an anode and a cathode, disposed within a vacuum housing, the anode and the cathode arranged to produce the localized x-ray radiation; a shaft having distal and proximal portions, where the vacuum housing is coupled to the distal portion of the shaft; and an elastic balloon coupled to and circumferentially surrounding the vacuum housing, the balloon being in fluid communication with a fluid loop for providing a fluid in an interior of the balloon, the balloon being inflatable by the fluid.
Claim 13
Dependent Claim 95 words
An x-ray device for delivering localized radiation to the interior of a body, comprising: an anode and a cathode, disposed within a vacuum housing, the anode and the cathode arranged to produce the localized x-ray radiation; a shaft having distal and proximal portions, where the vacuum housing is coupled to the distal portion of the shaft; and an elastic balloon coupled to and circumferentially surrounding the vacuum housing, the balloon being in fluid communication with a fluid loop for providing a fluid in an interior of the balloon, the balloon being inflatable by the fluid.
Claim 14
Independent Claim 93 words
A method for delivering localized x-ray to an interior passage of a body, comprising: positioning an x-ray device at the passage to be treated, the x-ray device comprising an x-ray producing unit, a flexible shaft having distal and proximal portions, where a vacuum housing is coupled to the distal portion of the shaft, and a dilating balloon circumferentially surrounding the x-ray producing unit, and a fluid loop for providing a fluid to an interior of the dilating balloon; and applying a high voltage to the x-ray producing unit to produce localized x-ray radiation.
Claim 15
Independent Claim 93 words
A method for delivering localized x-ray to an interior passage of a body, comprising: positioning an x-ray device at the passage to be treated, the x-ray device comprising an x-ray producing unit, a flexible shaft having distal and proximal portions, where a vacuum housing is coupled to the distal portion of the shaft, and a dilating balloon circumferentially surrounding the x-ray producing unit, and a fluid loop for providing a fluid to an interior of the dilating balloon; and applying a high voltage to the x-ray producing unit to produce localized x-ray radiation.
Claim 16
Dependent Claim 25 words
The method of claim 12, further comprising inflating the dilation balloon by providing fluid through the fluid loop to the interior of the dilating balloon.
Claim 17
Dependent Claim 19 words
The method of claim 12, further comprising cooling the x-ray device with the fluid used to inflate the balloon.
Claim 18
Dependent Claim 20 words
The method of claim 12, further comprising providing a cooling fluid loop for circulating cooling fluid to the x-ray device.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-08-01 2004-01-31 2004-08-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-08-01 2008-01-31 2008-08-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-08-01 2012-01-31 2012-08-01 $7700.00 Window Closed / Lapsed

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