JP5595723B2 - 潅注を伴う二重目的のラッソーカテーテル - Google Patents
潅注を伴う二重目的のラッソーカテーテル Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
- A61B5/283—Invasive
- A61B5/287—Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
- A61B5/6855—Catheters with a distal curved tip
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1472—Probes or electrodes therefor for use with liquid electrolyte, e.g. virtual electrodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
- A61B2034/2051—Electromagnetic tracking systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/056—Transvascular endocardial electrode systems
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Description
本発明は心臓のマッピング及び焼灼システムに関するものである。より具体的には、本発明は心臓のマッピング及び焼灼システムにおいて使用するためのラッソーカテーテルに関するものである。
心房細動などの心不整脈は、心臓組織の一部領域が近隣組織へ異常な電気信号を伝達したとき、正常な心周期を混乱させ、非同期的リズムを生じた場合に起こる。望ましくない信号の重大な発生源は、左心房の肺静脈沿い及び上肺静脈内の組織領域内にある。この状態において、望ましくない信号が肺静脈内で発生、又は他の発生源から肺静脈を通って伝達されると、その信号が左心房に伝わり、不整脈を発生又は継続させ得る。
ラッソーカテーテルは一般に、肺静脈心門などの解剖学的構造を取り囲む弧に沿って組織の焼灼を行うために使用される。従来、ラッソーカテーテルの曲線部分又はループは一般的に、操作性の目的に関しては薄く「ぺらぺら」しており、一方でラッソー上に配置されたリング電極は電気抵抗を最小限に抑えるために比較的大きい。
以下の説明において、本発明の種々の原理の完全な理解を提供するために、多くの具体的な詳細を記載する。しかしながら、これらの詳細全てが、必ずしも常に、本発明を実践する上で必要であるわけではないことが当業者には明らかであろう。この場合、一般概念を不必要に不明確にすることのないよう、周知の回路、制御論理、及び従来のアルゴリズム及びプロセスに関するコンピュータプログラム命令の詳細は詳しく示されていない。
(A) 遠位端を有する挿入チューブと、
該挿入チューブの該遠位端に固定された弾力性遠位部分と、を含み、該遠位部分が、外表面及び内側潅注管腔を有し、ドーム形であり該外表面上に突出し前記遠位部分の前記外表面の円周に満たない範囲を覆う複数個の丸まったキャップ形状の電極を含み、該電極が、それ自体に貫通して形成された複数個の小孔を有し、該電極の外表面が、該小孔および前記電極のドーム内の空間を経て該潅注管腔と流体連通している、カテーテル。
(1) 遠位端を有する挿入チューブと、
該挿入チューブの該遠位端に固定された弾力性遠位部分と、を含み、該遠位部分が、外表面及び内側潅注管腔を有し、該外表面上に突出する複数個の電極を含み、該電極が、それ自体に貫通して形成された複数個の小孔を有し、該外表面が、該小孔を経て該潅注管腔と流体連通している、カテーテル。
(2) 前記挿入チューブが、血管を通って被験者の心臓へと挿入されるように形成されており、前記弾力性遠位部分が、該心臓内に配置されたときに開放ループを画定する、実施態様1に記載のカテーテル。
(3) 前記弾力性遠位部分が、少なくとも直径1mmである、実施態様2に記載のカテーテル。
(4) 前記開放ループが、半径7mm〜15mmである、実施態様2に記載のカテーテル。
(5) 前記電極が、前記遠位部分の長手方向軸と直線的配列として整列している少なくとも3個の電極を含む、実施態様1に記載のカテーテル。
(6) 前記電極が、少なくとも2個の小孔を含む、実施態様1に記載のカテーテル。
(7) 前記電極が、2個〜100個の小孔を含む、実施態様1に記載のカテーテル。
(8) 前記電極の前記小孔が、直径0.05mm〜0.4mmである、実施態様1に記載のカテーテル。
(9) 前記電極をプロセッサに接続する少なくとも1本の導電性ワイヤを更に含む、実施態様1に記載のカテーテル。
(10) 前記電極が、前記外表面より0.05mm〜0.5mm上に突出している、実施態様1に記載のカテーテル。
(11) 前記電極の輪郭が、円形である、実施態様1に記載の心臓カテーテル。
(12) 前記遠位部分が、長手方向軸を有し、前記電極の輪郭が、楕円形である、実施態様1に記載のカテーテル。
(13) 前記電極が有するそれぞれの長軸が、前記長手方向軸に揃っている、実施態様12に記載のカテーテル。
(14) 前記電極が有するそれぞれの短軸が、前記長手方向軸に揃っている、実施態様12に記載のカテーテル。
(15) 第2の位置及び向きの次元を生成するためのマルチコイル位置センサーを有する近位側ベース部分を更に含む、実施態様1に記載のカテーテル。
(16) 前記マルチコイル位置センサーが、前記ベース部分の遠位端から10mm以内にある、実施態様15に記載のカテーテル。
(17) 被験生体の心臓内の不整脈発生場所を特定するための方法であって、
カテーテルを該心臓の室内に挿入する工程であって、該カテーテルは、遠位端を有する挿入チューブと、外表面及び内側潅注管腔を有し該挿入チューブの該遠位端に固定された弾力性遠位部分であって、該外表面上に突出する複数個の電極を更に含む、弾力性遠位部分とを含み、該電極がそれ自体に貫通して形成された複数個の小孔を有し、該外表面が該小孔を経て該潅注管腔と流体連通している、工程と、
該カテーテルを該室内の標的近くに配置する工程と、
該カテーテルを経て該標的から受け取った電気信号を分析することにより該電気信号が該心臓内の異常電気伝導を示すことを判定する工程と、
該判定に応じて、該心臓内にエネルギーを伝送することにより該異常電気伝導に影響を及ぼす工程と、を含む、方法。
(18) 前記心臓内に前記エネルギーを伝送している間に、前記潅注管腔及び前記電極の前記小孔に流体を通すことを更に含む、実施態様17に記載の方法。
(19) 前記電極のうち選択された2つを用いて二極性焼灼を実行する工程を更に含む、実施態様17に記載の方法。
(20) 前記心臓内への前記エネルギー伝送が、前記カテーテルを通じてペーシング信号を伝達することにより該心臓のペーシングを行うことを含む、実施態様17に記載の方法。
(21) 前記心臓内への前記エネルギー伝送が、前記標的内の心組織が焼灼されるまで実施される、実施態様17に記載の方法。
(22) 前記弾力性遠位部分が、少なくとも直径1mmである、実施態様17に記載の方法。
(23) 前記心臓内に配置されたとき、前記遠位部分が、半径7mm〜15mmの開放ループを形成する、実施態様17に記載の方法。
(24) 前記電極が、前記遠位部分の長手方向軸と直線的配列として整列している少なくとも3個の電極を含む、実施態様17に記載の方法。
(25) 前記電極が、2個〜20個の小孔を含む、実施態様17に記載の方法。
(26) 前記電極の前記小孔が、直径0.1mm〜0.4mmである、実施態様17に記載の方法。
(27) 前記電極が、前記外表面より0.1mm〜0.5mm上に突出している、実施態様17に記載の方法。
(28) 前記電極の輪郭が、円形である、実施態様17に記載の方法。
(29) 前記遠位部分が、長手方向軸を有し、前記電極の輪郭が、楕円形である、実施態様17に記載の方法。
(30) 前記電極が有するそれぞれの長軸が、前記長手方向軸に揃っている、実施態様29に記載の方法。
(31) 前記電極が有するそれぞれの短軸が、前記長手方向軸に揃っている、実施態様29に記載の方法。
(32) 前記カテーテルが、第2の位置及び向きの次元を生成するためのマルチコイル位置センサーを有する近位側ベース部分を更に含む、実施態様17に記載の方法。
(33) 前記マルチコイル位置センサーが、前記ベース部分の遠位端から10mm以内にある、実施態様32に記載の方法。
Claims (16)
- 遠位端を有する挿入チューブと、
該挿入チューブの該遠位端に固定された弾力性遠位部分と、を含み、該遠位部分が、外表面及び内側潅注管腔を有し、ドーム形であり該外表面上に突出し前記遠位部分の前記外表面の円周に満たない範囲を覆う複数個の丸まったキャップ形状の電極を含み、該電極が、それ自体に貫通して形成された複数個の小孔を有し、該電極の外表面が、該小孔および前記電極のドーム内の空間を経て該潅注管腔と流体連通している、カテーテル。 - 前記挿入チューブが、血管を通って被験者の心臓へと挿入されるように形成されており、前記弾力性遠位部分が、該心臓内に配置されたときに開放ループを画定する、請求項1に記載のカテーテル。
- 前記弾力性遠位部分が、少なくとも直径1mmである、請求項2に記載のカテーテル。
- 前記開放ループが、半径7mm〜15mmである、請求項2に記載のカテーテル。
- 前記電極が、前記遠位部分の長手方向軸と直線的配列として整列している少なくとも3個の電極を含む、請求項1に記載のカテーテル。
- 前記電極が、少なくとも2個の小孔を含む、請求項1に記載のカテーテル。
- 前記電極が、2個〜100個の小孔を含む、請求項1に記載のカテーテル。
- 前記電極の前記小孔が、直径0.05mm〜0.4mmである、請求項1に記載のカテーテル。
- 前記電極をプロセッサに接続する少なくとも1本の導電性ワイヤを更に含む、請求項1に記載のカテーテル。
- 前記電極が、前記外表面より0.05mm〜0.5mm上に突出している、請求項1に記載のカテーテル。
- 前記電極の輪郭が、円形である、請求項1に記載の心臓カテーテル。
- 前記遠位部分が、長手方向軸を有し、前記電極の輪郭が、楕円形である、請求項1に記載のカテーテル。
- 前記電極が有するそれぞれの長軸が、前記長手方向軸に揃っている、請求項12に記載のカテーテル。
- 前記電極が有するそれぞれの短軸が、前記長手方向軸に揃っている、請求項12に記載のカテーテル。
- 第2の位置及び向きの次元を生成するためのマルチコイル位置センサーを有する近位側ベース部分を更に含む、請求項1に記載のカテーテル。
- 前記マルチコイル位置センサーが、前記ベース部分の遠位端から10mm以内にある、請求項15に記載のカテーテル。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/345,720 | 2008-12-30 | ||
| US12/345,720 US8475450B2 (en) | 2008-12-30 | 2008-12-30 | Dual-purpose lasso catheter with irrigation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010155083A JP2010155083A (ja) | 2010-07-15 |
| JP5595723B2 true JP5595723B2 (ja) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2009297021A Expired - Fee Related JP5595723B2 (ja) | 2008-12-30 | 2009-12-28 | 潅注を伴う二重目的のラッソーカテーテル |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8475450B2 (ja) |
| EP (1) | EP2229904B9 (ja) |
| JP (1) | JP5595723B2 (ja) |
| CN (1) | CN101766502B (ja) |
| AU (2) | AU2009251155B2 (ja) |
| CA (2) | CA2964662A1 (ja) |
| IL (1) | IL203030A (ja) |
| RU (1) | RU2526964C2 (ja) |
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| US8600472B2 (en) | 2008-12-30 | 2013-12-03 | Biosense Webster (Israel), Ltd. | Dual-purpose lasso catheter with irrigation using circumferentially arranged ring bump electrodes |
| US8954161B2 (en) | 2012-06-01 | 2015-02-10 | Advanced Cardiac Therapeutics, Inc. | Systems and methods for radiometrically measuring temperature and detecting tissue contact prior to and during tissue ablation |
| US8926605B2 (en) | 2012-02-07 | 2015-01-06 | Advanced Cardiac Therapeutics, Inc. | Systems and methods for radiometrically measuring temperature during tissue ablation |
| US9226791B2 (en) | 2012-03-12 | 2016-01-05 | Advanced Cardiac Therapeutics, Inc. | Systems for temperature-controlled ablation using radiometric feedback |
| US9277961B2 (en) | 2009-06-12 | 2016-03-08 | Advanced Cardiac Therapeutics, Inc. | Systems and methods of radiometrically determining a hot-spot temperature of tissue being treated |
| US8920415B2 (en) | 2009-12-16 | 2014-12-30 | Biosense Webster (Israel) Ltd. | Catheter with helical electrode |
| US8608735B2 (en) * | 2009-12-30 | 2013-12-17 | Biosense Webster (Israel) Ltd. | Catheter with arcuate end section |
| US9113927B2 (en) * | 2010-01-29 | 2015-08-25 | Covidien Lp | Apparatus and methods of use for treating blood vessels |
| US11490957B2 (en) | 2010-06-16 | 2022-11-08 | Biosense Webster (Israel) Ltd. | Spectral sensing of ablation |
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| CN105396215A (zh) | 2010-08-13 | 2016-03-16 | 导管治疗有限公司 | 导管包壳及其制造方法 |
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2008
- 2008-12-30 US US12/345,720 patent/US8475450B2/en not_active Expired - Fee Related
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2009
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- 2009-12-22 CA CA2688973A patent/CA2688973C/en not_active Expired - Fee Related
- 2009-12-23 AU AU2009251155A patent/AU2009251155B2/en not_active Ceased
- 2009-12-28 JP JP2009297021A patent/JP5595723B2/ja not_active Expired - Fee Related
- 2009-12-29 EP EP09252918.9A patent/EP2229904B9/en not_active Not-in-force
- 2009-12-29 IL IL203030A patent/IL203030A/en active IP Right Grant
- 2009-12-29 RU RU2009149447/14A patent/RU2526964C2/ru active
- 2009-12-30 CN CN200910263741.8A patent/CN101766502B/zh not_active Expired - Fee Related
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2015
- 2015-10-01 AU AU2015234342A patent/AU2015234342B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| RU2009149447A (ru) | 2011-07-10 |
| RU2526964C2 (ru) | 2014-08-27 |
| CA2964662A1 (en) | 2010-06-30 |
| AU2009251155B2 (en) | 2015-10-22 |
| CN101766502B (zh) | 2015-03-11 |
| EP2229904A1 (en) | 2010-09-22 |
| US20100168548A1 (en) | 2010-07-01 |
| CA2688973C (en) | 2017-06-06 |
| JP2010155083A (ja) | 2010-07-15 |
| IL203030A (en) | 2015-01-29 |
| AU2015234342A1 (en) | 2015-10-29 |
| CA2688973A1 (en) | 2010-06-30 |
| EP2229904B9 (en) | 2016-05-25 |
| EP2229904B1 (en) | 2016-02-24 |
| US8475450B2 (en) | 2013-07-02 |
| CN101766502A (zh) | 2010-07-07 |
| AU2009251155A1 (en) | 2010-07-15 |
| AU2015234342B2 (en) | 2017-09-21 |
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