WO2001030437A1 - Systeme a fil spirale et ecran de protection pour patient - Google Patents

Systeme a fil spirale et ecran de protection pour patient Download PDF

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Publication number
WO2001030437A1
WO2001030437A1 PCT/US2000/029730 US0029730W WO0130437A1 WO 2001030437 A1 WO2001030437 A1 WO 2001030437A1 US 0029730 W US0029730 W US 0029730W WO 0130437 A1 WO0130437 A1 WO 0130437A1
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WO
WIPO (PCT)
Prior art keywords
coil
conductive surface
patient
current
wire
Prior art date
Application number
PCT/US2000/029730
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English (en)
Other versions
WO2001030437A8 (fr
Inventor
Michael A. Martinelli
Original Assignee
Winchester Development Associates
Enterprise Medical Technology, 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 Winchester Development Associates, Enterprise Medical Technology, Inc. filed Critical Winchester Development Associates
Priority to EP00972380A priority Critical patent/EP1257317A4/fr
Priority to AU11049/01A priority patent/AU1104901A/en
Publication of WO2001030437A1 publication Critical patent/WO2001030437A1/fr
Publication of WO2001030437A8 publication Critical patent/WO2001030437A8/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/16—Screening or neutralising undesirable influences from or using, atmospheric or terrestrial radiation or fields

Definitions

  • the present invention relates to, a patient-shielding system for use when a patient is exposed to capacitive currents as a result of immersion into a time-varying magnetic field. More particularly, this invention relates to a system for redirecting potentially harmful currents away from organs such as the heart when a medical procedure includes exposing that organ to a time-varying magnetic field.
  • FIG. 1 An exemplary navigation system is shown in FIG. 1.
  • the exemplary system of FIG. 1 contains platform 10 in which is embedded coils for generating a time-varying magnetic field. Two such coils are depicted as first coil set 12 and second coil set 14.
  • Field line 22 depicts the orientation of a magnetic field amplitude at an instant of time. See also U.S. Patent 5,592,939.
  • Present techniques for projecting a time varying magnetic field into a surgical region of interest preferably position the patient proximal to the coils that are generating the necessary fields. This is depicted in FIG. 2.
  • Patient 24 is generally kept from direct contact with coil sets 12 and 14 by non-conducting layer 20.
  • coil sets 12 and 14 located proximally to the surgical region of interest, may have differing voltage potentials.
  • coil set 12 is at positive potential 16
  • coil set 14 is at negative potential 18.
  • a uniform amplitude field that has its major component lateral to a plane determined by an operating room table is thus generated by two coils at different voltage potentials separated along that lateral dimension.
  • Field line 22 in FIG.2 indicates the direction of such an amplitude.
  • the surgical region of interest has loop characteristics of what is known as a capacitive current.
  • a schematic of such a current is depicted in FIG. 3.
  • capacitive current 34 denoted by I, can exceed what is considered desirable.
  • capacitive current 34 is of the order
  • a patient-shielding and coil system including a coil wire electrically coupled to a source of electrical current, an electrically conductive surface, insulation material situated between the coil wire and the conductive surface, and a drain wire connected to the conductive surface and forming a capacitive current loop with respect to the source.
  • the conductive surface has a resistance of substantially 1 ohm per square.
  • the electrically conductive surface forms an incomplete enclosure of the coil wire, so as to create an incomplete electrical circuit.
  • the conductive surface includes an upper portion and a lower portion.
  • the conductive surface includes a polyester foiL apor deposited with aluminum.
  • FIG. 1 depicts an exemplary coil system for generating a uniform amplitude magnetic field for a navigational system.
  • FIG. 2 depicts an effect the exemplary system of FIG. 1 can have on a patient.
  • FIG. 3 is a circuit diagram of a capacitive current loop formed by the configuration of FIG. 2.
  • FIG. 4 depicts an exemplary patient-shielding and coil system consistent with the present invention.
  • FIG. 5 depicts a cross section of a portion of the exemplary system of FIG. 4.
  • FIG. 6 depicts an example of how current flows across a cross section of the exemplary system of FIG. 4.
  • FIG. 7 depicts an alternative exemplary patient-shielding and coil system consistent with the present invention.
  • FIG. 8 depicts a side view of the exemplary patient-shielding and coil system of FIG. 7.
  • the present invention is directed to a system for redirecting potentially harmful currents away from organs such as the heart when a medical procedure includes exposing that organ to a time-varying magnetic field.
  • FIG. 4 depicts a patient-shielding and coil system in accordance with a preferred embodiment of the present invention.
  • the ends of coil wire 44 are attached to a driving voltage source (not shown). Between the ends of coil wire 44 and the coil assembly 40, coil wire 44 is wrapped about itself as twisted pair 47. Within coil assembly 40, coil wire 44 is looped N times. The current along coil wire 40 is denoted I .
  • coil form 54 surrounds that portion of coil wire 44 where coil wire 44 is looped N times.
  • Coil form 54 is depicted in FIG. 4 as rectangular in shape, but other shapes such can be used as well, and are consistent with the present invention.
  • FIG. 4 Other embodiments of the invention may include a coil wire 44 without a coil form, such that the coil wire is looped without the benefit of any coil form.
  • drain wire 42 and shield 52 depicted as the dashed line.
  • the shield 52 is preferably electrically conductive, so as to support an electrical current in the presence of a voltage potential.
  • the shield 52 may include a non-conductive foundation bonded, or otherwise attached, to a conductive surface.
  • Drain wire 42 is attached, or otherwise mounted, to shield 52.
  • Shield 52 extends along twisted pair 47 and envelops most of coil form 54, and thus envelopes most of coil wire 44.
  • shield 52 does not form a complete enclosure around coil axis 45, so as to prevent a compensating current from forming along the surface of shield 52 that would serve to decrease the magnitude of the magnetic field produced by the coil assembly 40.
  • shield 52 ends at gap 46.
  • FIG. 5 A more detailed cross section of coil assembly 40 consistent with a preferred embodiment of the present invention is shown in FIG. 5.
  • Shield 52 is exterior of coil form 54.
  • the lower portion of shield 52 is depicted as "U" shaped, and the upper portion of shield 52 is depicted as a cover.
  • the lower and upper portions of shield 52 can preferably be connected by conductive silver ink at location 56, but other techniques of connectivity using any type of conducting material can also be used.
  • Shield 52 can be composed of a polyester foil with aluminum vapor-deposited on its surface, but other compositions with the resistance discussed below can also be used.
  • the resistance of the vapor-deposited aluminum, a thin film, used in one embodiment of the present invention is of the order 1 ohm per square.
  • Drain wire 42 is connected to shield 52 and is connected to ground. Drain wire 42 carries the current 1Q along the length of shield 52. At each point along shield 52 the current 1Q in drain wire 42 is the total of all current induced between that point and gap 46. Because of the ground connection, these are capacitive currents as discussed above with regard to patient 24. However, here the capacitive current loop is closed with respect to a ground rather than through patient 24.
  • the current IQ at an instant of time, is associated with positive potential 16 and the capacitance of coil form 54, where the current loop of interest is completed by shield 52 connected to ground via drain wire 42.
  • FIG. 5 Also depicted in the cross section shown in FIG. 5 are the N cross sections of coil wire 44 contained within coil form 54. Because of the presence of current 1Q along drain wire 42, the current in coil wire 44 is altered by an amount of the order IQ/(2N). This is depicted in FIG. 6 where drain wire 42 along shield 52 has a current -/( ⁇ /2 and coil wire 44 along one loop has an adjusted current lfof+ 1Q/(2 ⁇ ). The net current including the effect of N loops of coil wire 44 and drain wire 42 along coil assembly 40, however, remains the value as before NIM- The current along drain wire 42 is cancelled. The net result is that patient 24 is shielded from capacitive current 34 by an amount of the order 1Q. Nevertheless, the desired magnetic fields for navigation throughout the surgical region of interest remain the same.
  • FIGS. 7 and 8 depict a patient-shielding and coil system in accordance with another preferred embodiment of the present invention.
  • shield system 70 is placed over platform 10 containing coil sets 12 and 14.
  • Shield system 70 is depicted as containing vapor-deposited conductive film 76 on top of non-conductive plastic sheet 74.
  • Conductive film 76 is connected to drain wire 42.
  • Coil sets 12 and 14 are connected in series and are driven through twisted pair 47 to produced the desired magnetic fields.
  • Positive potential 16 and negative potential 18 are shielded from patient 24 the conductive film 76.
  • Vapor-deposited conductive film 76 has a resistance of the order 1 ohm per square. This resistance is sufficient to produce little effect on the magnetic fields, indicated in FIG. 8 by field lines 48. Nevertheless, this resistance is sufficient to protect patient 24 from capacitive current 34.

Abstract

L'invention se rapporte à un système à fil spiralé et écran de protection pour patient, qui comprend un fil spiralé (12, 14) électriquement couplé à une source de courant électrique, une surface (76) électriquement conductrice, une matière d'isolation (74) entre le fil spiralé (12, 14) et la surface conductrice (76), et un fil de masse (42) connecté à la surface conductrice (76) et formant une boucle de courant capacitive par rapport à la source.
PCT/US2000/029730 1999-10-28 2000-10-27 Systeme a fil spirale et ecran de protection pour patient WO2001030437A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00972380A EP1257317A4 (fr) 1999-10-28 2000-10-27 Systeme a fil spirale et ecran de protection pour patient
AU11049/01A AU1104901A (en) 1999-10-28 2000-10-27 Patient-shielding and coil system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16198999P 1999-10-28 1999-10-28
US60/161,989 1999-10-28

Publications (2)

Publication Number Publication Date
WO2001030437A1 true WO2001030437A1 (fr) 2001-05-03
WO2001030437A8 WO2001030437A8 (fr) 2001-11-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/029730 WO2001030437A1 (fr) 1999-10-28 2000-10-27 Systeme a fil spirale et ecran de protection pour patient

Country Status (3)

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EP (1) EP1257317A4 (fr)
AU (1) AU1104901A (fr)
WO (1) WO2001030437A1 (fr)

Cited By (51)

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Publication number Priority date Publication date Assignee Title
FR2888983A1 (fr) * 2005-07-19 2007-01-26 Philippe Charles Marc Beaucamp Dispositif placant l'utilisateur, pendant son sommeil, dans un champ magnetique quasiment independant du champ magnetique terrestre
US7657300B2 (en) 1999-10-28 2010-02-02 Medtronic Navigation, Inc. Registration of human anatomy integrated for electromagnetic localization
US7660623B2 (en) 2003-01-30 2010-02-09 Medtronic Navigation, Inc. Six degree of freedom alignment display for medical procedures
US7697972B2 (en) 2002-11-19 2010-04-13 Medtronic Navigation, Inc. Navigation system for cardiac therapies
US7751865B2 (en) 2003-10-17 2010-07-06 Medtronic Navigation, Inc. Method and apparatus for surgical navigation
US7763035B2 (en) 1997-12-12 2010-07-27 Medtronic Navigation, Inc. Image guided spinal surgery guide, system and method for use thereof
US7797032B2 (en) 1999-10-28 2010-09-14 Medtronic Navigation, Inc. Method and system for navigating a catheter probe in the presence of field-influencing objects
US7831082B2 (en) 2000-06-14 2010-11-09 Medtronic Navigation, Inc. System and method for image based sensor calibration
US7835784B2 (en) 2005-09-21 2010-11-16 Medtronic Navigation, Inc. Method and apparatus for positioning a reference frame
US7835778B2 (en) 2003-10-16 2010-11-16 Medtronic Navigation, Inc. Method and apparatus for surgical navigation of a multiple piece construct for implantation
US7840253B2 (en) 2003-10-17 2010-11-23 Medtronic Navigation, Inc. Method and apparatus for surgical navigation
US7853305B2 (en) 2000-04-07 2010-12-14 Medtronic Navigation, Inc. Trajectory storage apparatus and method for surgical navigation systems
US7881770B2 (en) 2000-03-01 2011-02-01 Medtronic Navigation, Inc. Multiple cannula image guided tool for image guided procedures
USRE42194E1 (en) 1997-09-24 2011-03-01 Medtronic Navigation, Inc. Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
US8057407B2 (en) 1999-10-28 2011-11-15 Medtronic Navigation, Inc. Surgical sensor
US8112292B2 (en) 2006-04-21 2012-02-07 Medtronic Navigation, Inc. Method and apparatus for optimizing a therapy
USRE43328E1 (en) 1997-11-20 2012-04-24 Medtronic Navigation, Inc Image guided awl/tap/screwdriver
US8200314B2 (en) 1992-08-14 2012-06-12 British Telecommunications Public Limited Company Surgical navigation
US8239001B2 (en) 2003-10-17 2012-08-07 Medtronic Navigation, Inc. Method and apparatus for surgical navigation
USRE43750E1 (en) 1995-06-14 2012-10-16 Medtronic Navigation, Inc. Method for navigating a catheter probe
USRE43952E1 (en) 1989-10-05 2013-01-29 Medtronic Navigation, Inc. Interactive system for local intervention inside a non-homogeneous structure
US8452068B2 (en) 2008-06-06 2013-05-28 Covidien Lp Hybrid registration method
US8473032B2 (en) 2008-06-03 2013-06-25 Superdimension, Ltd. Feature-based registration method
US8611984B2 (en) 2009-04-08 2013-12-17 Covidien Lp Locatable catheter
US8663088B2 (en) 2003-09-15 2014-03-04 Covidien Lp System of accessories for use with bronchoscopes
US8696548B2 (en) 2002-04-17 2014-04-15 Covidien Lp Endoscope structures and techniques for navigating to a target in branched structure
US8764725B2 (en) 2004-02-09 2014-07-01 Covidien Lp Directional anchoring mechanism, method and applications thereof
US8838199B2 (en) 2002-04-04 2014-09-16 Medtronic Navigation, Inc. Method and apparatus for virtual digital subtraction angiography
US8905920B2 (en) 2007-09-27 2014-12-09 Covidien Lp Bronchoscope adapter and method
US8932207B2 (en) 2008-07-10 2015-01-13 Covidien Lp Integrated multi-functional endoscopic tool
US9055881B2 (en) 2004-04-26 2015-06-16 Super Dimension Ltd. System and method for image-based alignment of an endoscope
US9168102B2 (en) 2006-01-18 2015-10-27 Medtronic Navigation, Inc. Method and apparatus for providing a container to a sterile environment
US9575140B2 (en) 2008-04-03 2017-02-21 Covidien Lp Magnetic interference detection system and method
US9597154B2 (en) 2006-09-29 2017-03-21 Medtronic, Inc. Method and apparatus for optimizing a computer assisted surgical procedure
US9675424B2 (en) 2001-06-04 2017-06-13 Surgical Navigation Technologies, Inc. Method for calibrating a navigation system
US9757087B2 (en) 2002-02-28 2017-09-12 Medtronic Navigation, Inc. Method and apparatus for perspective inversion
US10418705B2 (en) 2016-10-28 2019-09-17 Covidien Lp Electromagnetic navigation antenna assembly and electromagnetic navigation system including the same
US10426555B2 (en) 2015-06-03 2019-10-01 Covidien Lp Medical instrument with sensor for use in a system and method for electromagnetic navigation
US10446931B2 (en) 2016-10-28 2019-10-15 Covidien Lp Electromagnetic navigation antenna assembly and electromagnetic navigation system including the same
US10478254B2 (en) 2016-05-16 2019-11-19 Covidien Lp System and method to access lung tissue
US10517505B2 (en) 2016-10-28 2019-12-31 Covidien Lp Systems, methods, and computer-readable media for optimizing an electromagnetic navigation system
US10582834B2 (en) 2010-06-15 2020-03-10 Covidien Lp Locatable expandable working channel and method
US10615500B2 (en) 2016-10-28 2020-04-07 Covidien Lp System and method for designing electromagnetic navigation antenna assemblies
US10638952B2 (en) 2016-10-28 2020-05-05 Covidien Lp Methods, systems, and computer-readable media for calibrating an electromagnetic navigation system
US10722311B2 (en) 2016-10-28 2020-07-28 Covidien Lp System and method for identifying a location and/or an orientation of an electromagnetic sensor based on a map
US10751126B2 (en) 2016-10-28 2020-08-25 Covidien Lp System and method for generating a map for electromagnetic navigation
US10792106B2 (en) 2016-10-28 2020-10-06 Covidien Lp System for calibrating an electromagnetic navigation system
US10952593B2 (en) 2014-06-10 2021-03-23 Covidien Lp Bronchoscope adapter
US11006914B2 (en) 2015-10-28 2021-05-18 Medtronic Navigation, Inc. Apparatus and method for maintaining image quality while minimizing x-ray dosage of a patient
US11219489B2 (en) 2017-10-31 2022-01-11 Covidien Lp Devices and systems for providing sensors in parallel with medical tools
US11331150B2 (en) 1999-10-28 2022-05-17 Medtronic Navigation, Inc. Method and apparatus for surgical navigation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8644907B2 (en) 1999-10-28 2014-02-04 Medtronic Navigaton, Inc. Method and apparatus for surgical navigation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548208A (en) * 1984-06-27 1985-10-22 Medtronic, Inc. Automatic adjusting induction coil treatment device
US4889526A (en) * 1984-08-27 1989-12-26 Magtech Laboratories, Inc. Non-invasive method and apparatus for modulating brain signals through an external magnetic or electric field to reduce pain
US5030196A (en) * 1980-04-23 1991-07-09 Inoue-Japax Research Incorporated Magnetic treatment device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218185A (en) * 1989-08-15 1993-06-08 Trustees Of The Thomas A. D. Gross 1988 Revocable Trust Elimination of potentially harmful electrical and magnetic fields from electric blankets and other electrical appliances
US5084003A (en) * 1989-11-24 1992-01-28 Dragan Susic Magnetic massage therapy device
JPH0816694B2 (ja) * 1991-02-05 1996-02-21 ゼネラル・エレクトリック・カンパニイ 動作効率向上のために誘電体をそなえたｎｍｒ無線周波コイル
DE4215302A1 (de) * 1992-05-09 1993-11-11 Walter Kaufmann Magnetfeldunterbett mit Entstörsystem
DE4238748A1 (de) * 1992-11-17 1994-05-19 Walter Kaufmann Magnetfeldunterbett mit Duo System

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5030196A (en) * 1980-04-23 1991-07-09 Inoue-Japax Research Incorporated Magnetic treatment device
US4548208A (en) * 1984-06-27 1985-10-22 Medtronic, Inc. Automatic adjusting induction coil treatment device
US4889526A (en) * 1984-08-27 1989-12-26 Magtech Laboratories, Inc. Non-invasive method and apparatus for modulating brain signals through an external magnetic or electric field to reduce pain

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1257317A4 *

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USRE43952E1 (en) 1989-10-05 2013-01-29 Medtronic Navigation, Inc. Interactive system for local intervention inside a non-homogeneous structure
US8200314B2 (en) 1992-08-14 2012-06-12 British Telecommunications Public Limited Company Surgical navigation
USRE43750E1 (en) 1995-06-14 2012-10-16 Medtronic Navigation, Inc. Method for navigating a catheter probe
USRE44305E1 (en) 1997-09-24 2013-06-18 Medtronic Navigation, Inc. Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
USRE42226E1 (en) 1997-09-24 2011-03-15 Medtronic Navigation, Inc. Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
USRE42194E1 (en) 1997-09-24 2011-03-01 Medtronic Navigation, Inc. Percutaneous registration apparatus and method for use in computer-assisted surgical navigation
USRE43328E1 (en) 1997-11-20 2012-04-24 Medtronic Navigation, Inc Image guided awl/tap/screwdriver
USRE46422E1 (en) 1997-11-20 2017-06-06 Medtronic Navigation, Inc. Image guided awl/tap/screwdriver
USRE46409E1 (en) 1997-11-20 2017-05-23 Medtronic Navigation, Inc. Image guided awl/tap/screwdriver
US7763035B2 (en) 1997-12-12 2010-07-27 Medtronic Navigation, Inc. Image guided spinal surgery guide, system and method for use thereof
US11331150B2 (en) 1999-10-28 2022-05-17 Medtronic Navigation, Inc. Method and apparatus for surgical navigation
US7797032B2 (en) 1999-10-28 2010-09-14 Medtronic Navigation, Inc. Method and system for navigating a catheter probe in the presence of field-influencing objects
US8057407B2 (en) 1999-10-28 2011-11-15 Medtronic Navigation, Inc. Surgical sensor
US7657300B2 (en) 1999-10-28 2010-02-02 Medtronic Navigation, Inc. Registration of human anatomy integrated for electromagnetic localization
US7881770B2 (en) 2000-03-01 2011-02-01 Medtronic Navigation, Inc. Multiple cannula image guided tool for image guided procedures
US10898153B2 (en) 2000-03-01 2021-01-26 Medtronic Navigation, Inc. Multiple cannula image guided tool for image guided procedures
US7853305B2 (en) 2000-04-07 2010-12-14 Medtronic Navigation, Inc. Trajectory storage apparatus and method for surgical navigation systems
US7831082B2 (en) 2000-06-14 2010-11-09 Medtronic Navigation, Inc. System and method for image based sensor calibration
US9675424B2 (en) 2001-06-04 2017-06-13 Surgical Navigation Technologies, Inc. Method for calibrating a navigation system
US9757087B2 (en) 2002-02-28 2017-09-12 Medtronic Navigation, Inc. Method and apparatus for perspective inversion
US8838199B2 (en) 2002-04-04 2014-09-16 Medtronic Navigation, Inc. Method and apparatus for virtual digital subtraction angiography
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US7697972B2 (en) 2002-11-19 2010-04-13 Medtronic Navigation, Inc. Navigation system for cardiac therapies
US9867721B2 (en) 2003-01-30 2018-01-16 Medtronic Navigation, Inc. Method and apparatus for post-operative tuning of a spinal implant
US7660623B2 (en) 2003-01-30 2010-02-09 Medtronic Navigation, Inc. Six degree of freedom alignment display for medical procedures
US11707363B2 (en) 2003-01-30 2023-07-25 Medtronic Navigation, Inc. Method and apparatus for post-operative tuning of a spinal implant
US11684491B2 (en) 2003-01-30 2023-06-27 Medtronic Navigation, Inc. Method and apparatus for post-operative tuning of a spinal implant
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US10383509B2 (en) 2003-09-15 2019-08-20 Covidien Lp System of accessories for use with bronchoscopes
US7835778B2 (en) 2003-10-16 2010-11-16 Medtronic Navigation, Inc. Method and apparatus for surgical navigation of a multiple piece construct for implantation
US8239001B2 (en) 2003-10-17 2012-08-07 Medtronic Navigation, Inc. Method and apparatus for surgical navigation
US7840253B2 (en) 2003-10-17 2010-11-23 Medtronic Navigation, Inc. Method and apparatus for surgical navigation
US7751865B2 (en) 2003-10-17 2010-07-06 Medtronic Navigation, Inc. Method and apparatus for surgical navigation
US8764725B2 (en) 2004-02-09 2014-07-01 Covidien Lp Directional anchoring mechanism, method and applications thereof
US9055881B2 (en) 2004-04-26 2015-06-16 Super Dimension Ltd. System and method for image-based alignment of an endoscope
US10321803B2 (en) 2004-04-26 2019-06-18 Covidien Lp System and method for image-based alignment of an endoscope
FR2888983A1 (fr) * 2005-07-19 2007-01-26 Philippe Charles Marc Beaucamp Dispositif placant l'utilisateur, pendant son sommeil, dans un champ magnetique quasiment independant du champ magnetique terrestre
US7835784B2 (en) 2005-09-21 2010-11-16 Medtronic Navigation, Inc. Method and apparatus for positioning a reference frame
US9168102B2 (en) 2006-01-18 2015-10-27 Medtronic Navigation, Inc. Method and apparatus for providing a container to a sterile environment
US10597178B2 (en) 2006-01-18 2020-03-24 Medtronic Navigation, Inc. Method and apparatus for providing a container to a sterile environment
US8112292B2 (en) 2006-04-21 2012-02-07 Medtronic Navigation, Inc. Method and apparatus for optimizing a therapy
US9597154B2 (en) 2006-09-29 2017-03-21 Medtronic, Inc. Method and apparatus for optimizing a computer assisted surgical procedure
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WO2001030437A8 (fr) 2001-11-08
EP1257317A1 (fr) 2002-11-20
AU1104901A (en) 2001-05-08
EP1257317A4 (fr) 2003-05-28

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