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WO2003015864B1 - Apparatus and method for locating implanted - Google Patents

Apparatus and method for locating implanted

Info

Publication number
WO2003015864B1
WO2003015864B1 PCT/US2002/026248 US0226248W WO03015864B1 WO 2003015864 B1 WO2003015864 B1 WO 2003015864B1 US 0226248 W US0226248 W US 0226248W WO 03015864 B1 WO03015864 B1 WO 03015864B1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetized
magnetizable
predetermined angle
long axis
magnetizable material
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.)
Ceased
Application number
PCT/US2002/026248
Other languages
French (fr)
Other versions
WO2003015864A2 (en
WO2003015864A3 (en
Inventor
Stephen Mcaleavey
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.)
University of Rochester
Original Assignee
University of Rochester
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 University of Rochester filed Critical University of Rochester
Priority to AU2002326683A priority Critical patent/AU2002326683A1/en
Publication of WO2003015864A2 publication Critical patent/WO2003015864A2/en
Publication of WO2003015864A3 publication Critical patent/WO2003015864A3/en
Anticipated expiration legal-status Critical
Publication of WO2003015864B1 publication Critical patent/WO2003015864B1/en
Ceased 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
    • A61N5/1027—Interstitial radiation therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A61B2090/3954—Markers, e.g. radio-opaque or breast lesions markers magnetic, e.g. NMR or MRI
    • 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
    • A61N2005/1019—Sources therefor
    • A61N2005/1024—Seeds
    • 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
    • A61N5/1048—Monitoring, verifying, controlling systems and methods

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Magnetic Treatment Devices (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

A brachytherapy seed (100) includes a magnetized or magnetizable material (106). To locate seeds (100) which have been implanted into an organ, the organ is exposed to an oscillating magnetic field, which causes them to vibrate. Doppler ultrasound is used to detect the vibrating seeds (100).

Claims

AMENDED CLAIMS
[received by the International Bureau on 14 June 2003 (14.06.2003); new claims 31-41 added; remaining claims unchanged (2 pages)]
29. The method of claim 26, wherein the time-dependent magnetic field is
periodic.
30. The method of claim 29, wherein the time-dependent magnetic field is sinusoidal. 31. The method of claim 1 , wherein: the magnetized or magnetizable substance is formed to have a long axis; and step (b) comprises applying the time-dependent magnetic field to the therapeutic object at a predetermined angle relative to the long axis.
32. The method of claim 31, wherein the magnetized or magnetizable material is magnetizable, and wherein the predetermined angle is 45 degrees.
33. The method of claim 31, wherein the magnetized or magnetizable material is permanently magnetized, and wherein the predetermined angle is 90 degrees.
34. The method of claim 31, wherein step (b) is performed with a pair of magnetic coils, one placed on either side of the organ. 35. The seed according to claim 8, wherein: the capsule is formed of a biologically inert material such that an exterior surface of the seed is formed entirely of the biologically inert material; and the magnetized or magnetizable material is formed to have a long axis.
36. The apparatus of claim 14, comprising a pair of magnetic coils for being placed one on either side of the organ.
37. The method of claim 19, wherein: the capsule is formed of a biotogically inert material such that an exterior surface of the seed is formed entirely of the biologically inert material; and the magnetized or magnetizable material is formed to have a long axis.
38. The method of claim 26, wherein the magnetized or magnetizable material is formed to have a long axis.
39. The method of claim 38, wherein the magnetized or magnetizable material is magnetizable, and wherein the predetermined angle is 45 degrees. 40. The method of claim 38, wherein the magnetized or magnetizable material is permanently magnetized, and wherein the predetermined angle is 90 degrees.
41. The method of claim 38, wherein step (a) is performed with a pair of magnetic coils, one placed on either side of the organ.
18
PCT/US2002/026248 2001-08-20 2002-08-19 Apparatus and method for locating implanted Ceased WO2003015864A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002326683A AU2002326683A1 (en) 2001-08-20 2002-08-19 Apparatus and method for locating implanted

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93185701A 2001-08-20 2001-08-20
US09/931,857 2001-08-20

Publications (3)

Publication Number Publication Date
WO2003015864A2 WO2003015864A2 (en) 2003-02-27
WO2003015864A3 WO2003015864A3 (en) 2003-06-05
WO2003015864B1 true WO2003015864B1 (en) 2004-05-13

Family

ID=25461460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/026248 Ceased WO2003015864A2 (en) 2001-08-20 2002-08-19 Apparatus and method for locating implanted

Country Status (2)

Country Link
AU (1) AU2002326683A1 (en)
WO (1) WO2003015864A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7217242B2 (en) * 2002-03-12 2007-05-15 Riverside Research Institute Ultrasonic method for visualizing brachytheraphy seeds
EP3302700A1 (en) 2015-06-04 2018-04-11 Koninklijke Philips N.V. Determination of positions of objects, such as brachytherapy seeds

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6447438B1 (en) * 2000-04-05 2002-09-10 Spectrasonics Imaging, Inc. Apparatus and method for locating therapeutic seeds implanted in a human body

Also Published As

Publication number Publication date
AU2002326683A1 (en) 2003-03-03
WO2003015864A2 (en) 2003-02-27
WO2003015864A3 (en) 2003-06-05

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