CA2090210A1 - Interstitial x-ray needle - Google Patents

Interstitial x-ray needle

Info

Publication number
CA2090210A1
CA2090210A1 CA002090210A CA2090210A CA2090210A1 CA 2090210 A1 CA2090210 A1 CA 2090210A1 CA 002090210 A CA002090210 A CA 002090210A CA 2090210 A CA2090210 A CA 2090210A CA 2090210 A1 CA2090210 A1 CA 2090210A1
Authority
CA
Canada
Prior art keywords
tube
casing
tip
interstitial
ray
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
CA002090210A
Other languages
French (fr)
Other versions
CA2090210C (en
Inventor
John Rudolph Smith
Carl Allan Muehlenweg
Robert Bruce Miller
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.)
Engility LLC
Original Assignee
Titan Corp
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
Application filed by Titan Corp filed Critical Titan Corp
Publication of CA2090210A1 publication Critical patent/CA2090210A1/en
Application granted granted Critical
Publication of CA2090210C publication Critical patent/CA2090210C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing 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
    • 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
    • A61N5/1027—Interstitial radiation therapy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/12—Cooling
    • H01J2235/1204—Cooling of the anode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/12—Cooling
    • H01J2235/1225—Cooling characterised by method
    • H01J2235/1262—Circulating fluids

Abstract

An interstitial X-ray needle includes an elongated X-ray tube coupled to an electron emitter at one end of the tube, with a converter element being dis-posed at a tip of the other end of the tube for converting emitted electrons into X-rays; a solenoid coil wound around the tube for providing a magnetic field that confines the emitted electrons within a narrow beam; an elongated outer casing enclosing the tube and coil; and a pipe coaxially disposed between the casing and the tube for defining an inner annular flow chamber between the tip of the tube and a coolant inlet in the casing and an outer annular flow chamber between the tip of the tube and a coolant outlet in the casing.
CA002090210A 1992-03-23 1993-02-23 Interstitial x-ray needle Expired - Fee Related CA2090210C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/855,664 1992-03-23
US07/855,664 US5165093A (en) 1992-03-23 1992-03-23 Interstitial X-ray needle

Publications (2)

Publication Number Publication Date
CA2090210A1 true CA2090210A1 (en) 1993-09-24
CA2090210C CA2090210C (en) 2002-07-16

Family

ID=25321797

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002090210A Expired - Fee Related CA2090210C (en) 1992-03-23 1993-02-23 Interstitial x-ray needle

Country Status (6)

Country Link
US (2) US5165093A (en)
EP (1) EP0562759B1 (en)
JP (1) JPH06142220A (en)
CA (1) CA2090210C (en)
DE (1) DE69311415T2 (en)
DK (1) DK0562759T3 (en)

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Also Published As

Publication number Publication date
DE69311415D1 (en) 1997-07-17
DE69311415T2 (en) 1997-10-16
DK0562759T3 (en) 1997-07-07
EP0562759A1 (en) 1993-09-29
US5165093A (en) 1992-11-17
EP0562759B1 (en) 1997-06-11
USRE35383E (en) 1996-11-26
CA2090210C (en) 2002-07-16
JPH06142220A (en) 1994-05-24

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