CA2362916A1 - Magnetic anatomical marker and method of use - Google Patents

Magnetic anatomical marker and method of use Download PDF

Info

Publication number
CA2362916A1
CA2362916A1 CA002362916A CA2362916A CA2362916A1 CA 2362916 A1 CA2362916 A1 CA 2362916A1 CA 002362916 A CA002362916 A CA 002362916A CA 2362916 A CA2362916 A CA 2362916A CA 2362916 A1 CA2362916 A1 CA 2362916A1
Authority
CA
Canada
Prior art keywords
magnet
anatomical
marker
retention
anatomical marker
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
CA002362916A
Other languages
French (fr)
Other versions
CA2362916C (en
Inventor
Mika N. Sinanan
Christopher P. Somogyi
Robert N. Golden
Fred E. Silverstein
Andrei J. Gonzales
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.)
Lucent Medical Systems Inc
Original Assignee
Lucent Medical Systems, Inc.
Mika N. Sinanan
Christopher P. Somogyi
Robert N. Golden
Fred E. Silverstein
Andrei J. Gonzales
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 Lucent Medical Systems, Inc., Mika N. Sinanan, Christopher P. Somogyi, Robert N. Golden, Fred E. Silverstein, Andrei J. Gonzales filed Critical Lucent Medical Systems, Inc.
Publication of CA2362916A1 publication Critical patent/CA2362916A1/en
Application granted granted Critical
Publication of CA2362916C publication Critical patent/CA2362916C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00004—(bio)absorbable, (bio)resorbable, resorptive
    • 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
    • A61B2090/3937—Visible markers
    • 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
    • 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
    • A61B2090/3987—Applicators for implanting markers

Abstract

An anatomical marker uses a permanent magnet to indicate a selected location within a patient. The magnet is enclosed within a non-degradable envelop and is coupled to a retention member that is preferably manufactured from a biodegradable material, such as a polyglucuronic acid based material. The retention member may include one or more barbs to retain the anatomical mark er in the selected location. An insertion tool, usable with an endoscope, can insert the anatomical marker. A retention magnet is fixedly attached to the insertion tool and holds the anatomical marker in place due to the attractiv e magnetic forces between the retention magnet and the marker magnet in the no n- biodegradable envelope. When the anatomical marker is securely fastened at t he selected location in the patient, the forces exerted by the patient's body o n the retention member exceed the attractive magnetic forces between the retention magnet and the magnet in the envelope, thus causing the anatomical marker to be released from the insertion tool. The location of the magnet ma y be subsequently detected using a magnetic detector system.
CA002362916A 1999-03-01 2000-02-29 Magnetic anatomical marker and method of use Expired - Fee Related CA2362916C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/259,222 1999-03-01
US09/259,222 US6173715B1 (en) 1999-03-01 1999-03-01 Magnetic anatomical marker and method of use
PCT/US2000/005776 WO2000051514A1 (en) 1999-03-01 2000-02-29 Magnetic anatomical marker and method of use

Publications (2)

Publication Number Publication Date
CA2362916A1 true CA2362916A1 (en) 2000-09-08
CA2362916C CA2362916C (en) 2008-01-08

Family

ID=22984060

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002362916A Expired - Fee Related CA2362916C (en) 1999-03-01 2000-02-29 Magnetic anatomical marker and method of use

Country Status (6)

Country Link
US (1) US6173715B1 (en)
EP (1) EP1156752A1 (en)
JP (1) JP2002537891A (en)
AU (1) AU3726400A (en)
CA (1) CA2362916C (en)
WO (1) WO2000051514A1 (en)

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WO2000051514B1 (en) 2000-11-30
EP1156752A1 (en) 2001-11-28
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WO2000051514A1 (en) 2000-09-08
AU3726400A (en) 2000-09-21

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