DE3577804D1 - Katheter zur verwendung in systemen zur nmr-bilderzeugung. - Google Patents

Katheter zur verwendung in systemen zur nmr-bilderzeugung.

Info

Publication number
DE3577804D1
DE3577804D1 DE8585304000T DE3577804T DE3577804D1 DE 3577804 D1 DE3577804 D1 DE 3577804D1 DE 8585304000 T DE8585304000 T DE 8585304000T DE 3577804 T DE3577804 T DE 3577804T DE 3577804 D1 DE3577804 D1 DE 3577804D1
Authority
DE
Germany
Prior art keywords
catheter
imaging systems
nmr imaging
nmr
systems
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.)
Expired - Lifetime
Application number
DE8585304000T
Other languages
English (en)
Inventor
Robert Smith Codrington
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.)
Varian Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Application granted granted Critical
Publication of DE3577804D1 publication Critical patent/DE3577804D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0127—Magnetic means; Magnetic markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
    • 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
    • A61B2090/3958—Markers, e.g. radio-opaque or breast lesions markers magnetic, e.g. NMR or MRI emitting a signal

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
DE8585304000T 1984-06-18 1985-06-05 Katheter zur verwendung in systemen zur nmr-bilderzeugung. Expired - Lifetime DE3577804D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/621,635 US4572198A (en) 1984-06-18 1984-06-18 Catheter for use with NMR imaging systems

Publications (1)

Publication Number Publication Date
DE3577804D1 true DE3577804D1 (de) 1990-06-28

Family

ID=24490973

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8585304000T Expired - Lifetime DE3577804D1 (de) 1984-06-18 1985-06-05 Katheter zur verwendung in systemen zur nmr-bilderzeugung.
DE198585304000T Pending DE165742T1 (de) 1984-06-18 1985-06-05 Katheter zur verwendung in systemen zur nmr-bilderzeugung.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE198585304000T Pending DE165742T1 (de) 1984-06-18 1985-06-05 Katheter zur verwendung in systemen zur nmr-bilderzeugung.

Country Status (5)

Country Link
US (1) US4572198A (de)
EP (1) EP0165742B1 (de)
JP (1) JPH0649032B2 (de)
DE (2) DE3577804D1 (de)
IL (1) IL75378A (de)

Families Citing this family (258)

* Cited by examiner, † Cited by third party
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IL75378A (en) 1991-01-31
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DE165742T1 (de) 1986-08-14
US4572198A (en) 1986-02-25

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