JP5404416B2 - 磁気共鳴システム用伝送ライン - Google Patents
磁気共鳴システム用伝送ライン Download PDFInfo
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- JP5404416B2 JP5404416B2 JP2009542376A JP2009542376A JP5404416B2 JP 5404416 B2 JP5404416 B2 JP 5404416B2 JP 2009542376 A JP2009542376 A JP 2009542376A JP 2009542376 A JP2009542376 A JP 2009542376A JP 5404416 B2 JP5404416 B2 JP 5404416B2
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- signal
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- 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
- G01R33/288—Provisions within MR facilities for enhancing safety during MR, e.g. reduction of the specific absorption rate [SAR], detection of ferromagnetic objects in the scanner room
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Electrotherapy Devices (AREA)
Description
Claims (14)
- RF場の存在下においてDC信号を伝送する導電性伝送ケーブルであって、変調されたDC信号を受信するように構成され、前記導電性伝送ケーブルが、
前記導電性伝送ケーブルの先端部における電極と、
反応型結合ユニットにより互いに電気的に接続される少なくとも第1のセグメント及び第2のセグメントを有する伝送ラインと、
前記電極に接続された整流ユニットであって、前記伝送ラインから前記変調されたDC信号を入力し、前記変調されたDC信号からDC信号を抽出し、前記抽出されたDC信号を前記電極に供給する整流ユニットと、
を有する導電性伝送ケーブル。 - 請求項1に記載の導電性伝送ケーブルであって、前記反応型結合ユニットは、トランスである、導電性伝送ケーブル。
- 請求項1に記載の導電性伝送ケーブルであって、前記反応型結合ユニットは、電気的インピーダンスである、導電性伝送ケーブル。
- 請求項1に記載の導電性伝送ケーブルであって、前記セグメント及び/又は反応型結合ユニットは、基板上の少なくとも1つの金属構造の形態で設けられる、導電性伝送ケーブル。
- 請求項1に記載の導電性伝送ケーブルを含む介入カテーテルその他の予備的装置であって、磁気共鳴システムにおける使用と互換性がある、装置。
- 請求項5に記載の予備的装置であって、前記伝送ケーブルに接続されるトラッキング回路を含み、前記トラッキング回路は、当該予備的装置の位置を判定するために前記磁気共鳴システムにより追従されることの可能なトラッキング信号を発生するよう構成されている、装置。
- 請求項5に記載の予備的装置であって、前記トラッキング回路は、前記磁気共鳴システムにおける検査の下で被験体に対して高周波信号を送信し及び/又は磁気共鳴信号を受信するよう構成される、装置。
- 請求項1に記載の導電性伝送ケーブルに電気的に接続される心臓ペーシング装置であって、当該抽出されたDC信号につき作用するよう構成される心臓ペーシング装置。
- 請求項1に記載の導電性伝送ケーブルに電気的に接続される充電可能な電気的記憶装置を含む電気的装置であって、前記充電可能な電気的記憶装置は、当該電気的装置に電力を供給するように構成され、前記充電可能な電気的記憶装置は、当該抽出されたDC信号を用いて充電されるように構成される、装置。
- 請求項1に記載の導電性伝送ケーブルであって、前記変調されたDC信号は、振幅変調されたDC信号である、ケーブル。
- 請求項1に記載の導電性伝送ケーブルであって、前記変調されたDC信号を発生するよう高周波搬送波について入力DC信号を変調するよう構成された変調器を含む、ケーブル。
- 請求項1に記載の導電性伝送ケーブルであって、セグメントを反応型結合ユニットにマッチングするための、少なくとも1つのインダクタ及び/又はキャパシタ及び/又は抵抗器を備えた少なくとも1つのマッチングネットワークを含む、ケーブル。
- 請求項1に記載の導電性伝送ケーブルであって、前記整流ユニットは、前記伝送ラインに直列接続された少なくとも1つのダイオードと、前記ダイオードに直列接続された低域通過フィルタとを含む、ケーブル。
- RF場の存在下においてDC信号を伝送するための導電性伝送ケーブルを有する磁気共鳴システムであって、前記伝送ケーブルは、変調されたDC信号を受信するよう構成され、前記伝送ケーブルは、
前記伝送ケーブルの先端部における電極と、
反応型結合ユニットにより互いに電気的に接続される少なくとも第1及び第2のセグメントを有する伝送ラインと、
前記電極に接続された整流ユニットであって、前記伝送ラインから前記変調されたDC信号を入力し、前記変調されたDC信号からDC信号を抽出し、前記抽出されたDC信号を前記電極に供給する整流ユニットと、
を有する、システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06126958 | 2006-12-22 | ||
EP06126958.5 | 2006-12-22 | ||
PCT/IB2007/055252 WO2008078294A1 (en) | 2006-12-22 | 2007-12-20 | Transmission line for use in magnetic resonance system |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010529863A JP2010529863A (ja) | 2010-09-02 |
JP5404416B2 true JP5404416B2 (ja) | 2014-01-29 |
Family
ID=39361303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009542376A Expired - Fee Related JP5404416B2 (ja) | 2006-12-22 | 2007-12-20 | 磁気共鳴システム用伝送ライン |
Country Status (5)
Country | Link |
---|---|
US (1) | US8228065B2 (ja) |
EP (2) | EP2097762A1 (ja) |
JP (1) | JP5404416B2 (ja) |
CN (1) | CN101652672B (ja) |
WO (1) | WO2008078294A1 (ja) |
Families Citing this family (31)
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WO2008078294A1 (en) * | 2006-12-22 | 2008-07-03 | Philips Intellectual Property & Standards Gmbh | Transmission line for use in magnetic resonance system |
US8641704B2 (en) * | 2007-05-11 | 2014-02-04 | Medtronic Ablation Frontiers Llc | Ablation therapy system and method for treating continuous atrial fibrillation |
JP2012239723A (ja) * | 2011-05-20 | 2012-12-10 | Toshiba Corp | 磁気共鳴イメージング装置 |
EP2597481A1 (en) | 2011-11-22 | 2013-05-29 | Koninklijke Philips Electronics N.V. | RF-safe interventional or non-interventional instrument for use in an MRI apparatus |
AU2012352197B2 (en) | 2011-12-15 | 2015-05-07 | Imricor Medical Systems, Inc. | Mr active tracking system |
CA2881462C (en) | 2012-08-09 | 2020-07-14 | University Of Iowa Research Foundation | Catheters, catheter systems, and methods for puncturing through a tissue structure |
WO2014174396A1 (en) * | 2013-04-23 | 2014-10-30 | Koninklijke Philips N.V. | Single coaxial interface for magnetic resonance (mr) coils |
EP3091921B1 (en) | 2014-01-06 | 2019-06-19 | Farapulse, Inc. | Apparatus for renal denervation ablation |
EP3139997B1 (en) | 2014-05-07 | 2018-09-19 | Farapulse, Inc. | Apparatus for selective tissue ablation |
EP3154463B1 (en) | 2014-06-12 | 2019-03-27 | Farapulse, Inc. | Apparatus for rapid and selective transurethral tissue ablation |
WO2015192018A1 (en) | 2014-06-12 | 2015-12-17 | Iowa Approach Inc. | Method and apparatus for rapid and selective tissue ablation with cooling |
WO2016060983A1 (en) | 2014-10-14 | 2016-04-21 | Iowa Approach Inc. | Method and apparatus for rapid and safe pulmonary vein cardiac ablation |
US20170143413A1 (en) * | 2015-11-24 | 2017-05-25 | Biosense Webster (Israel) Ltd. | Enhanced Safety Method and System for Digital Communication Using Two AC Coupling Wires |
US10660702B2 (en) | 2016-01-05 | 2020-05-26 | Farapulse, Inc. | Systems, devices, and methods for focal ablation |
US20170189097A1 (en) | 2016-01-05 | 2017-07-06 | Iowa Approach Inc. | Systems, apparatuses and methods for delivery of ablative energy to tissue |
US10172673B2 (en) | 2016-01-05 | 2019-01-08 | Farapulse, Inc. | Systems devices, and methods for delivery of pulsed electric field ablative energy to endocardial tissue |
US10130423B1 (en) | 2017-07-06 | 2018-11-20 | Farapulse, Inc. | Systems, devices, and methods for focal ablation |
US11327130B2 (en) | 2016-05-16 | 2022-05-10 | The Johns Hopkins University | RF safe transmission line for MRI |
WO2017218734A1 (en) | 2016-06-16 | 2017-12-21 | Iowa Approach, Inc. | Systems, apparatuses, and methods for guide wire delivery |
US9987081B1 (en) | 2017-04-27 | 2018-06-05 | Iowa Approach, Inc. | Systems, devices, and methods for signal generation |
US10617867B2 (en) | 2017-04-28 | 2020-04-14 | Farapulse, Inc. | Systems, devices, and methods for delivery of pulsed electric field ablative energy to esophageal tissue |
CN115844523A (zh) | 2017-09-12 | 2023-03-28 | 波士顿科学医学有限公司 | 用于心室局灶性消融的***、设备和方法 |
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EP3790483A1 (en) | 2018-05-07 | 2021-03-17 | Farapulse, Inc. | Systems, apparatuses, and methods for filtering high voltage noise induced by pulsed electric field ablation |
WO2019217433A1 (en) | 2018-05-07 | 2019-11-14 | Farapulse, Inc. | Systems, apparatuses and methods for delivery of ablative energy to tissue |
US10687892B2 (en) | 2018-09-20 | 2020-06-23 | Farapulse, Inc. | Systems, apparatuses, and methods for delivery of pulsed electric field ablative energy to endocardial tissue |
US10625080B1 (en) | 2019-09-17 | 2020-04-21 | Farapulse, Inc. | Systems, apparatuses, and methods for detecting ectopic electrocardiogram signals during pulsed electric field ablation |
US11471650B2 (en) | 2019-09-20 | 2022-10-18 | Biosense Webster (Israel) Ltd. | Mechanism for manipulating a puller wire |
US11065047B2 (en) | 2019-11-20 | 2021-07-20 | Farapulse, Inc. | Systems, apparatuses, and methods for protecting electronic components from high power noise induced by high voltage pulses |
US11497541B2 (en) | 2019-11-20 | 2022-11-15 | Boston Scientific Scimed, Inc. | Systems, apparatuses, and methods for protecting electronic components from high power noise induced by high voltage pulses |
US10842572B1 (en) | 2019-11-25 | 2020-11-24 | Farapulse, Inc. | Methods, systems, and apparatuses for tracking ablation devices and generating lesion lines |
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-
2007
- 2007-12-20 WO PCT/IB2007/055252 patent/WO2008078294A1/en active Application Filing
- 2007-12-20 US US12/520,182 patent/US8228065B2/en active Active
- 2007-12-20 EP EP07859476A patent/EP2097762A1/en not_active Ceased
- 2007-12-20 CN CN200780047175.6A patent/CN101652672B/zh not_active Expired - Fee Related
- 2007-12-20 JP JP2009542376A patent/JP5404416B2/ja not_active Expired - Fee Related
- 2007-12-20 EP EP13152712.9A patent/EP2587275B8/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
JP2010529863A (ja) | 2010-09-02 |
EP2097762A1 (en) | 2009-09-09 |
CN101652672B (zh) | 2014-11-26 |
EP2587275B8 (en) | 2015-07-15 |
US8228065B2 (en) | 2012-07-24 |
EP2587275A1 (en) | 2013-05-01 |
CN101652672A (zh) | 2010-02-17 |
US20100013484A1 (en) | 2010-01-21 |
WO2008078294A1 (en) | 2008-07-03 |
EP2587275B1 (en) | 2015-04-29 |
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