CA2194759A1 - X-ray apparatus for applying a predetermined flux to an interior surface of a body cavity - Google Patents

X-ray apparatus for applying a predetermined flux to an interior surface of a body cavity

Info

Publication number
CA2194759A1
CA2194759A1 CA2194759A CA2194759A CA2194759A1 CA 2194759 A1 CA2194759 A1 CA 2194759A1 CA 2194759 A CA2194759 A CA 2194759A CA 2194759 A CA2194759 A CA 2194759A CA 2194759 A1 CA2194759 A1 CA 2194759A1
Authority
CA
Canada
Prior art keywords
body cavity
housing
beam path
probe
target
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2194759A
Other languages
French (fr)
Other versions
CA2194759C (en
Inventor
Donald O. Smith
Alan P. Sliski
Kenneth J. Harte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Photoelectron Corp
Original Assignee
Donald O. Smith
Alan P. Sliski
Photoelectron Corporation
Kenneth J. Harte
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23044819&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2194759(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Donald O. Smith, Alan P. Sliski, Photoelectron Corporation, Kenneth J. Harte filed Critical Donald O. Smith
Publication of CA2194759A1 publication Critical patent/CA2194759A1/en
Application granted granted Critical
Publication of CA2194759C publication Critical patent/CA2194759C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K5/00—Irradiation devices
    • G21K5/04—Irradiation devices with beam-forming means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
    • G21G4/00—Radioactive sources
    • G21G4/04—Radioactive sources other than neutron sources
    • G21G4/06—Radioactive sources other than neutron sources characterised by constructional features
    • G21G4/08—Radioactive sources other than neutron sources characterised by constructional features specially adapted for medical application
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/112—Non-rotating anodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
    • H01J35/30—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof by deflection of the cathode ray
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/32—Tubes wherein the X-rays are produced at or near the end of the tube or a part thereof which tube or part has a small cross-section to facilitate introduction into a small hole or cavity
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/02—Constructional details
    • H05G1/04—Mounting the X-ray tube within a closed housing
    • H05G1/06—X-ray tube and at least part of the power supply apparatus being mounted within the same housing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/10—Power supply arrangements for feeding the X-ray tube
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/32—Supply voltage of the X-ray apparatus or tube
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/34—Anode current, heater current or heater voltage of X-ray tube
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
    • A61N5/1002—Intraluminal radiation therapy
    • A61N2005/1005—Intraluminal radiation therapy with asymmetrical radiation pattern
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/34—Photoemissive electrodes
    • H01J2201/342—Cathodes

Abstract

The present invention is directed to an x-ray source (10) for irradiating a surface defining a body cavity. The source comprises a housing (12), an elongated tubular probe (14), a target assembly (26), and an inflatable balloon (410). The housing (12) encloses an electron beam source (22) and includes elements (23) for generating an electron beam along a beam path. The tubular probe (14) extends along a central axis from the housing (12) about the beam path. The target assembly (26) extends along the central axis and is coupled to the probe distal end. The target assembly (26) includes a target element (26A, 26B) adapted to emit x-rays in response to electrons incident thereon. The probe tip assembly and associated control electronics include elements for positioning the target element in the beam path, and is substantially x-ray transparent. The balloon (410) affixed to the distal end is inflatable so as to be inflated to stretch the cavity to a shape, thus allowing a uniform delivery of dose of radiation to the surface defining a body cavity.
CA002194759A 1994-07-12 1995-07-11 X-ray apparatus for applying a predetermined flux to an interior surface of a body cavity Expired - Fee Related CA2194759C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US27364594A 1994-07-12 1994-07-12
US08/273,645 1994-07-12
PCT/US1995/008625 WO1996002059A1 (en) 1994-07-12 1995-07-11 X-ray apparatus for applying a predetermined flux to an interior surface of a body cavity

Publications (2)

Publication Number Publication Date
CA2194759A1 true CA2194759A1 (en) 1996-01-25
CA2194759C CA2194759C (en) 1999-09-14

Family

ID=23044819

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002194759A Expired - Fee Related CA2194759C (en) 1994-07-12 1995-07-11 X-ray apparatus for applying a predetermined flux to an interior surface of a body cavity

Country Status (10)

Country Link
US (1) US5621780A (en)
EP (1) EP0770258B1 (en)
JP (1) JP2927966B2 (en)
KR (1) KR100251423B1 (en)
AT (1) ATE207651T1 (en)
AU (1) AU684652B2 (en)
CA (1) CA2194759C (en)
DE (1) DE69523457D1 (en)
RU (1) RU2140111C1 (en)
WO (1) WO1996002059A1 (en)

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KR970705148A (en) 1997-09-06
KR100251423B1 (en) 2000-04-15
WO1996002059A1 (en) 1996-01-25
RU2140111C1 (en) 1999-10-20
JPH09507913A (en) 1997-08-12
US5621780A (en) 1997-04-15
EP0770258A4 (en) 1997-08-13
DE69523457D1 (en) 2001-11-29
EP0770258B1 (en) 2001-10-24
CA2194759C (en) 1999-09-14
EP0770258A1 (en) 1997-05-02
JP2927966B2 (en) 1999-07-28
ATE207651T1 (en) 2001-11-15
AU684652B2 (en) 1997-12-18
AU2967695A (en) 1996-02-09

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