WO2005109025A1 - Apparatus and construction for intravascular device such as active mri catheter - Google Patents

Apparatus and construction for intravascular device such as active mri catheter Download PDF

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Publication number
WO2005109025A1
WO2005109025A1 PCT/US2005/015462 US2005015462W WO2005109025A1 WO 2005109025 A1 WO2005109025 A1 WO 2005109025A1 US 2005015462 W US2005015462 W US 2005015462W WO 2005109025 A1 WO2005109025 A1 WO 2005109025A1
Authority
WO
WIPO (PCT)
Prior art keywords
intravascular device
electrically conductive
layer
disposed
dielectric layer
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/US2005/015462
Other languages
English (en)
French (fr)
Inventor
Scott R. Smith
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.)
Boston Scientific Scimed Inc
Original Assignee
Scimed Life Systems 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 Scimed Life Systems Inc filed Critical Scimed Life Systems Inc
Priority to CA002565682A priority Critical patent/CA2565682A1/en
Priority to JP2007511539A priority patent/JP2007535998A/ja
Priority to EP05741950A priority patent/EP1756607A1/en
Publication of WO2005109025A1 publication Critical patent/WO2005109025A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G01R33/287—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR involving active visualization of interventional instruments, e.g. using active tracking RF coils or coils for intentionally creating magnetic field inhomogeneities
    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3628—Tuning/matching of the transmit/receive coil
    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts

Definitions

  • Non- cylindrical external coils such as surface coils
  • the RF signals detected by the RF receiver 160 can encompass the entire subject 100 or a specific region of subject 100. However, the resolution which can be obtained from external RF receiver 160 is less than that which can be achieved with the device antenna.
  • the RF signals detected by the RF receiver 160 is less than that which can be achieved with the device antenna.
  • the dielectric 506 is air.
  • the dielectric material 506 is a porous, air-filled material.
  • expanded polytetrafluoroethylene (PTFE) or a material with similar structure and properties, is used as the dielectric 506. Expanded PTFE is a porous material that has a very low density.
  • Intravascular device 800 is a coaxial device having two choke mechanisms 802 and 804.
  • Device 800 also includes center conductor 806, dielectric layer 808 and primary shield 810.
  • Choke 802 includes dielectric layer 812, shield 816 and electrical short 820.
  • Choke 804 includes dielectric layer 814, shield 818. and electrical short 822.
  • Shield layers 816 and 818 are electrically conductive.
  • the proximal end 826 of center conductor 806 extends to and couples to a receiver/controller (not shown) .
  • Dielectric layer 812 insulates shield 816 from center conductor 806.
  • Dielectric layer 814 insulates shield 818 from center conductor 806. -31-
  • shields 816 and 818 are formed of a conductive polymer in order to reduce the currents induced by RF radiation.
  • the conductive polymer used to form shield layers 816 and 818 is a polymer that is intrinsically conductive.
  • shield layers 816 and 818 are comprised of a carrier polymer that is infused with conductive material .
  • the carrier polymer can be substantially any polymer.
  • the filler material can be substantially any conductive material. Examples of filler materials are graphite, carbon fiber and metal powder, such as silver powder.
  • Coaxial chokes 802 and 804 serve to limit the induced currents in center conductor 806.

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
PCT/US2005/015462 2004-05-06 2005-05-04 Apparatus and construction for intravascular device such as active mri catheter Ceased WO2005109025A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002565682A CA2565682A1 (en) 2004-05-06 2005-05-04 Apparatus and construction for intravascular device such as active mri catheter
JP2007511539A JP2007535998A (ja) 2004-05-06 2005-05-04 能動型ｍｒｉカテーテル等血管内器具用装置および構造
EP05741950A EP1756607A1 (en) 2004-05-06 2005-05-04 Apparatus and construction for intravascular device such as active mri catheter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/840,318 US20050251031A1 (en) 2004-05-06 2004-05-06 Apparatus and construction for intravascular device
US10/840,318 2004-05-06

Publications (1)

Publication Number Publication Date
WO2005109025A1 true WO2005109025A1 (en) 2005-11-17

Family

ID=34967800

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/015462 Ceased WO2005109025A1 (en) 2004-05-06 2005-05-04 Apparatus and construction for intravascular device such as active mri catheter

Country Status (5)

Country Link
US (3) US20050251031A1 (https=)
EP (1) EP1756607A1 (https=)
JP (1) JP2007535998A (https=)
CA (1) CA2565682A1 (https=)
WO (1) WO2005109025A1 (https=)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008094855A1 (en) * 2007-01-29 2008-08-07 Wisconsin Alumni Research Foundation Interventional multi-mode medical system with thermal ablation capability
US7496397B2 (en) 2004-05-06 2009-02-24 Boston Scientific Scimed, Inc. Intravascular antenna
US8412306B2 (en) 2007-02-28 2013-04-02 Wisconsin Alumni Research Foundation Voltage standing wave suppression for MR-guided therapeutic interventions
US8457712B2 (en) 2005-12-30 2013-06-04 Wisconsin Alumni Research Foundation Multi-mode medical device system and methods of manufacturing and using same
US8532742B2 (en) 2006-11-15 2013-09-10 Wisconsin Alumni Research Foundation System and method for simultaneous 3DPR device tracking and imaging under MR-guidance for therapeutic endovascular interventions
JP2014116812A (ja) * 2012-12-11 2014-06-26 Orient Micro Wave:Kk 手術器の位置検出システムおよび送信アンテナ

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US20050251031A1 (en) * 2004-05-06 2005-11-10 Scimed Life Systems, Inc. Apparatus and construction for intravascular device
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CN102473697B (zh) 2009-06-26 2016-08-10 伊文萨思公司 曲折配置的堆叠裸片的电互连
WO2011056668A2 (en) 2009-10-27 2011-05-12 Vertical Circuits, Inc. Selective die electrical insulation additive process
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TWI544604B (zh) 2009-11-04 2016-08-01 英維瑟斯公司 具有降低應力電互連的堆疊晶粒總成
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US9825002B2 (en) 2015-07-17 2017-11-21 Invensas Corporation Flipped die stack
US9490195B1 (en) 2015-07-17 2016-11-08 Invensas Corporation Wafer-level flipped die stacks with leadframes or metal foil interconnects
US9508691B1 (en) 2015-12-16 2016-11-29 Invensas Corporation Flipped die stacks with multiple rows of leadframe interconnects
US10566310B2 (en) 2016-04-11 2020-02-18 Invensas Corporation Microelectronic packages having stacked die and wire bond interconnects
US9595511B1 (en) 2016-05-12 2017-03-14 Invensas Corporation Microelectronic packages and assemblies with improved flyby signaling operation
US9728524B1 (en) 2016-06-30 2017-08-08 Invensas Corporation Enhanced density assembly having microelectronic packages mounted at substantial angle to board
WO2018045042A1 (en) * 2016-08-30 2018-03-08 The University Of North Carolina At Chapel Hill Office Of Commercialization And Economic Development Elastic radio frequency coil
CN108770182B (zh) * 2018-04-17 2019-08-06 胜宏科技（惠州）股份有限公司 一种双阶梯移动天线pcb及制作方法
DE102020204067A1 (de) * 2020-03-30 2021-09-30 Siemens Healthcare Gmbh Lokalspule mit Verstimmfunktion
AU2021322841A1 (en) * 2020-08-04 2023-03-02 The University Of Queensland Multi-modal antenna
WO2022086729A1 (en) 2020-10-22 2022-04-28 Boston Scientific Scimed, Inc. Compression resistant sheath
JPWO2022210696A1 (https=) * 2021-03-31 2022-10-06

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7496397B2 (en) 2004-05-06 2009-02-24 Boston Scientific Scimed, Inc. Intravascular antenna
US8116846B2 (en) 2004-05-06 2012-02-14 Boston Scientific Scimed, Inc. Intravascular antenna
US8457712B2 (en) 2005-12-30 2013-06-04 Wisconsin Alumni Research Foundation Multi-mode medical device system and methods of manufacturing and using same
US8532742B2 (en) 2006-11-15 2013-09-10 Wisconsin Alumni Research Foundation System and method for simultaneous 3DPR device tracking and imaging under MR-guidance for therapeutic endovascular interventions
WO2008094855A1 (en) * 2007-01-29 2008-08-07 Wisconsin Alumni Research Foundation Interventional multi-mode medical system with thermal ablation capability
US8412306B2 (en) 2007-02-28 2013-04-02 Wisconsin Alumni Research Foundation Voltage standing wave suppression for MR-guided therapeutic interventions
JP2014116812A (ja) * 2012-12-11 2014-06-26 Orient Micro Wave:Kk 手術器の位置検出システムおよび送信アンテナ

Also Published As

Publication number Publication date
US20050251031A1 (en) 2005-11-10
JP2007535998A (ja) 2007-12-13
US20080208043A1 (en) 2008-08-28
US20080021315A1 (en) 2008-01-24
CA2565682A1 (en) 2005-11-17
EP1756607A1 (en) 2007-02-28

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