WO2007130510A3 - Magnetic markers for position sensing - Google Patents

Magnetic markers for position sensing Download PDF

Info

Publication number
WO2007130510A3
WO2007130510A3 PCT/US2007/010728 US2007010728W WO2007130510A3 WO 2007130510 A3 WO2007130510 A3 WO 2007130510A3 US 2007010728 W US2007010728 W US 2007010728W WO 2007130510 A3 WO2007130510 A3 WO 2007130510A3
Authority
WO
WIPO (PCT)
Prior art keywords
implant
magnets
magnetic field
locations
orientations
Prior art date
Application number
PCT/US2007/010728
Other languages
French (fr)
Other versions
WO2007130510A2 (en
Inventor
Benjamin Yellen
Original Assignee
Benjamin Yellen
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 Benjamin Yellen filed Critical Benjamin Yellen
Publication of WO2007130510A2 publication Critical patent/WO2007130510A2/en
Publication of WO2007130510A3 publication Critical patent/WO2007130510A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/061—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body
    • A61B5/062—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body using magnetic field
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • A61F2/3868—Joints for elbows or knees with sliding tibial bearing
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4528—Joints

Abstract

An imaging system is provided for locating implants within a patient, and for determining the spatial relationship and orientation between components of an implant within a patient. Magnets are fixed to an implant in pre-determined locations, the magnets having pre-determined quantity, magnetic field map, and moment orientations. An array of sensors is arranged around the implant. The locations of the magnets are estimated by iteratively solving for the position vector coordinates using multi-poles approximating the pre-determined quantity, magnetic field map, and moment orientations of the magnets and the magnetic field measurements for each sensor. The positions and orientations of the implant or components of the implant are inferred from the estimated locations of the magnets.
PCT/US2007/010728 2006-05-04 2007-05-03 Magnetic markers for position sensing WO2007130510A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/417,601 2006-05-04
US11/417,601 US20070276218A1 (en) 2006-05-04 2006-05-04 Magnetic markers for position sensing

Publications (2)

Publication Number Publication Date
WO2007130510A2 WO2007130510A2 (en) 2007-11-15
WO2007130510A3 true WO2007130510A3 (en) 2008-04-03

Family

ID=38668302

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/010728 WO2007130510A2 (en) 2006-05-04 2007-05-03 Magnetic markers for position sensing

Country Status (2)

Country Link
US (1) US20070276218A1 (en)
WO (1) WO2007130510A2 (en)

Families Citing this family (17)

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EP2256521A1 (en) * 2009-05-25 2010-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for magnetic positioning
US8593141B1 (en) 2009-11-24 2013-11-26 Hypres, Inc. Magnetic resonance system and method employing a digital squid
EP2545249B1 (en) * 2010-03-09 2019-05-15 ConocoPhillips Company Subterranean formation deformation monitoring systems
US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
US9533167B2 (en) * 2011-01-14 2017-01-03 Massachusetts Institute Of Technology System and method for manipulation of devices using magnetic fields
FR2998380B1 (en) * 2012-11-20 2016-01-08 Commissariat Energie Atomique METHOD FOR AUTOMATICALLY RECOGNIZING A MOBILE MAGNETIC OBJECT
US10286196B2 (en) 2016-06-30 2019-05-14 Integra Lifesciences Switzerland Sàrl Device to control magnetic rotor of a programmable hydrocephalus valve
US10589074B2 (en) 2016-06-30 2020-03-17 Integra Lifesciences Switzerland Sàrl Magneto-resistive sensor tool set for hydrocephalus valve
US10850081B2 (en) 2017-09-19 2020-12-01 Integra LifeSciences Switzerland Sáarl Implantable bodily fluid drainage valve with magnetic field resistance engagement confirmation
US10994108B2 (en) 2017-09-19 2021-05-04 Integra LifeSciences Switzerland Sárl Programmable drainage valve with fixed reference magnet for determining direction of flow operable with analog or digital compass toolsets
US10850080B2 (en) 2017-09-19 2020-12-01 Integra LifeSciences Switzerland Sárl Electronic toolset to locate, read, adjust, and confirm adjustment in an implantable bodily fluid drainage system without recalibrating following adjustment
US10888692B2 (en) 2017-09-19 2021-01-12 Integra Lifesciences Switzerland Sàrl Electronic toolset for use with multiple generations of implantable programmable valves with or without orientation functionality based on a fixed reference magnet
NL2022093B1 (en) 2018-11-29 2020-06-26 Sirius Medical Systems B V The present disclosure relates to a magnetic field probe for determining a disposition of an implantable magnetic marker, a detection unit comprising the probe and a method of detecting the disposition of an implantable magnetic marker.
CN112674913B (en) * 2021-01-14 2021-11-26 福州大学 Unicondylar knee joint prosthesis capable of preventing looseness and working method thereof
FR3120302A1 (en) * 2021-03-08 2022-09-09 Bonetag method of imaging an implanted implant
WO2023020241A1 (en) * 2021-08-16 2023-02-23 The University Of Hong Kong Non-contact, non-radiation device that accurately locates multiple implants in patient's body
US20230309852A1 (en) * 2022-04-05 2023-10-05 Senseonics, Incorporated Implant finder

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EP0081109A2 (en) * 1981-12-04 1983-06-15 Energy-Pak Ltd. Magnetic-cure plaster for the treatment of larger surfaces
US5762064A (en) * 1995-01-23 1998-06-09 Northrop Grumman Corporation Medical magnetic positioning system and method for determining the position of a magnetic probe
WO2000027281A1 (en) * 1998-11-06 2000-05-18 Lucent Medical Systems, Inc. Determining the location and orientation of an indwelling medical device

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US4608992A (en) * 1983-08-18 1986-09-02 Salomon Hakim External magnetic detection of physiopathological and other parameters
US4622644A (en) * 1984-05-10 1986-11-11 Position Orientation Systems, Ltd. Magnetic position and orientation measurement system
DE9207951U1 (en) * 1992-06-12 1992-12-03 Dental-Labor Hartmut Stemmann, 2000 Hamburg, De
US5381095A (en) * 1993-06-21 1995-01-10 Rockwell International Corporation Method of estimating location and orientation of magnetic dipoles using extended Kalman filtering and Schweppe likelihood ratio detection
US5762599A (en) * 1994-05-02 1998-06-09 Influence Medical Technologies, Ltd. Magnetically-coupled implantable medical devices
US5879386A (en) * 1994-12-13 1999-03-09 Jore; Matthew B. Magnetic prosthetic system
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US5879297A (en) * 1997-05-08 1999-03-09 Lucent Medical Systems, Inc. System and method to determine the location and orientation of an indwelling medical device
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US6138681A (en) * 1997-10-13 2000-10-31 Light Sciences Limited Partnership Alignment of external medical device relative to implanted medical device
US6505062B1 (en) * 1998-02-09 2003-01-07 Stereotaxis, Inc. Method for locating magnetic implant by source field
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081109A2 (en) * 1981-12-04 1983-06-15 Energy-Pak Ltd. Magnetic-cure plaster for the treatment of larger surfaces
US5762064A (en) * 1995-01-23 1998-06-09 Northrop Grumman Corporation Medical magnetic positioning system and method for determining the position of a magnetic probe
WO2000027281A1 (en) * 1998-11-06 2000-05-18 Lucent Medical Systems, Inc. Determining the location and orientation of an indwelling medical device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Also Published As

Publication number Publication date
WO2007130510A2 (en) 2007-11-15
US20070276218A1 (en) 2007-11-29

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