JPH08501477A - 心内膜の写像システム - Google Patents
心内膜の写像システムInfo
- Publication number
- JPH08501477A JPH08501477A JP6508431A JP50843194A JPH08501477A JP H08501477 A JPH08501477 A JP H08501477A JP 6508431 A JP6508431 A JP 6508431A JP 50843194 A JP50843194 A JP 50843194A JP H08501477 A JPH08501477 A JP H08501477A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- array
- heart
- potential
- lead body
- 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.)
- Granted
Links
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Landscapes
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
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- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 心筋における電気的活性化から生ずる心臓チャンバーの容積的で電気 的なポテンシャル分布又は容積的電位分布を写像する方法において、 a)心内膜キャビティの中に電極アレイを配置し、 b)前記心臓チャンバーの内側面に前記アレイ19から公知の隔たりをもって基 準電極を配置し、前記基準電極24と前記アレイ19とは協力して1つの基準位 置を画定し、 c)前記心臓チャンバーの容積と形状とを測定して、容積及び形状測定値から容 積測定データを発生し、 d)前記容積測定値と前記心臓内基準位置とから前記アレイの位置を計算して、 電位測定値からアレイ位置測定データを発生し、 e)前記アレイに関しての電位を測定して、電位測定データを発生し、 f)前記電位測定値を有するラプラス方程式の解と、前記アレイ位置測定データ とから前記心臓チャンバー容積の3次元の容積的な電場分布を計算し、 g)前記容積的な電場分布を表示する、諸ステップを含む方法。 2. 心筋における電気的活性化から生ずる心臓チャンバーの壁内における 2次元の電気的ポテンシャル分布又は電位分布を写像する方法において、 a)心内膜チャンバーの中に電極アレイ19を配置し、 b)前記心臓チャンバーの内側面に前記アレイ19から公知の隔たりをもって基 準電極24を配置し、前記基準電極24と前記アレイ19とは協力して1つの心 内膜基準位置を画定し、 c)前記心臓チャンバーの容積と形状とを測定して、容積及び形状測定値から容 積測定データを発生し、 d)前記容積測定値と前記心内膜基準位置とから前記アレイの位置を計算して、 アレイ位置測定データを発生し、 e)前記アレイに関しての電位を測定して、該電位測定値から電位測定データを 発生し、 f)前記電位測定データを含有する球形状調和級数項と、前記アレイ位置測定デ ータとから前記心臓チャンバー容積の3次元の容積的な電場分布を計算し、 g)前記心臓チャンバー壁上の計算された電位点の1セットを画定し、 h)表面下電極サイトを画定する前記壁内に臓器壁内電極を挿入し、前記表面下 サイトから表面下電圧測定値を発生し、 i)ステップg)での前記計算された電位点とステップh)での前記表面下電圧 測定値とからの重心計算から2次元の電位分布を計算し、該2次元電位分布から 2次元の写像データを発生し、 j)前記2次元写像データから2次元電位分布写像を表示する、諸ステップを含 む方法。 3. 前記電極アレイは20以上の電極を有することから成る請求項1或い は2に記載の方法。 4. 前記ステップc)は、 c1)前記アレイ上のインピーダンス・プレチスモグラフィ信号列を発生し、 c2)前記心臓容積を特徴付ける結果的なプレチスモグラフィ信号列を測定し 、 c3)ステップc2から前記容積的測定データを発生することを含むことから 成る請求項1或いは2に記載の方法。 5. 患者の心臓における心臓の電気的ポテンシャル又は電位を写像するた めに使用する写像カテーテルにおいて、 複数電極のセットと、 前記電極セットに連結され、複数電極の第1のサブセットとしての該電極セッ トの一部を、前記心臓の表面から且つ該表面とは非接触状態で、離隔させる第1 位置付け手段と、 前記電極セットに連結され、該電極セットの第2の所定サブセットを前記心臓 の表面に接触させる第2位置付け手段と、を備えることから成る写像カテーテル 。 6. 前記電極セットに連結され、前記複数電極の第3の所定サブセットを 前記心臓の表面下の然るべき位置に配置させる第3位置付け手段を更に備えるこ とから成る請求項1に記載の装置。 7. 前記電極セットは12を越える電極数であることから成る請求項1に 記載の装置。 8. 前記第1電極サブセットは1を越える電極数であることか成る請求項 1に記載の装置。 9. 前記第2サブセットは少なくとも1つであることから成る請求項1に 記載の装置。 10. 前記第1位置付け手段は形状において略々球であることから成る請求 項1に記載の装置。 11. 前記第2位置付け手段は略々円筒形状を有することから成る請求項1 に記載の装置。 12. 患者の心臓の内側を写像するカテーテルアセンブリ10において、 第1電極アレイを画定する複数電極サイトの第1セットと、 前記電極アレイは前記心臓内に配置されて、該心臓に対して非接触状態の前記 電極の実質的な数を伴っていることと、 前記心臓に対して接触状態となって配置された複数電極サイトの第2セットと 、を備えて成るカテーテルアセンブリ。 13.患者の心臓の心臓チャンバーの内側における電気的ポテンシャル又は電位 を写像するカテーテルアセンブリにおいて、 変形自在リード体に連結された軟質リード体であって、該変形自在リード体と 共に管膣を有する軟質リード体と、 前記変形自在リード体は、該変形自在リード体が略々円筒形状となる第1圧潰 位置まで変形可能であり、且つ、該変形自在リード体が略々球形状となる第2膨 張位置まで変形可能であることと、 前記変形自在リード体近辺に配置された複数の電極サイトであって、該電極サ イトは前記変形自在リード体が前記第2膨張位置にある際に球状アレイを形成す るような複数の電極サイトを有する電極アレイと、 先端電極アセンブリを有する基準カテーテルと、 前記基準カテーテルは、前記管膣内に配置され、前記電極アレイが前記心臓内 にある際に前記先端電極アセンブリが前記心臓に対して接触するように前記電極 アレイに対しての相対的運動のために支持されていることと、を備えることから 成るカテーテルアセンブリ。 14. 前記変形自在リード体が前記第2膨張位置にある際に該変形自在リー ド体の内側から血液を排除するための手段を更に備えることから成る請求項1に 記載のカテーテルアセンブリ。 15. 前記軟質リード体は高分子物質のシース内に組み入れられた複数の絶 縁ワイヤの編組を含むことから成る請求項8に記載のカテーテルアセンブリ。 16. カテーテルを形成する方法において、 a)各々が内側導体と、外側絶縁コーティングとを有する複数の絶縁ワイヤの集 合を形成し、 b)ステップa)で形成されたワイヤを編組状として中央管膣を有する編組状構 造を形成し、 c)前記編組状構造を軟質リード体を形成する高分子材内に組み入れ、 d)前記軟質リード体の一部から前記高分子材を取り除き、前記絶縁ワイヤの前 記編組を露出して変形自在リード体を形成し、 f)選択された絶縁ワイヤ上の選択された位置から絶縁物を取り除いて、前記変 形自在リード体上に電極サイトを形成する、諸ステップを含むことから成る方法 。
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US07/949,690 | 1992-09-23 | ||
US07/950,448 | 1992-09-23 | ||
US07/950,448 US5297549A (en) | 1992-09-23 | 1992-09-23 | Endocardial mapping system |
US07/949,690 US5311866A (en) | 1992-09-23 | 1992-09-23 | Heart mapping catheter |
PCT/US1993/009015 WO1994006349A1 (en) | 1992-09-23 | 1993-09-23 | Endocardial mapping system |
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JP2004019295A Division JP3876344B2 (ja) | 1992-09-23 | 2004-01-28 | 写像カテーテル及びカテーテルアセンブリ |
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JP50843194A Expired - Fee Related JP3581888B2 (ja) | 1992-09-23 | 1993-09-23 | 心内膜の写像システム |
JP2004019295A Expired - Lifetime JP3876344B2 (ja) | 1992-09-23 | 2004-01-28 | 写像カテーテル及びカテーテルアセンブリ |
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EP (1) | EP0661948B1 (ja) |
JP (2) | JP3581888B2 (ja) |
AT (1) | ATE160273T1 (ja) |
CA (3) | CA2678625A1 (ja) |
DE (1) | DE69315354T2 (ja) |
WO (1) | WO1994006349A1 (ja) |
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- 1993-09-23 DE DE69315354T patent/DE69315354T2/de not_active Expired - Lifetime
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2000
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2003
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Also Published As
Publication number | Publication date |
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CA2447239A1 (en) | 1994-03-31 |
US6826420B1 (en) | 2004-11-30 |
JP2004209262A (ja) | 2004-07-29 |
US6826421B1 (en) | 2004-11-30 |
US20060084972A1 (en) | 2006-04-20 |
EP0661948A1 (en) | 1995-07-12 |
CA2678625A1 (en) | 1994-03-31 |
US8208998B2 (en) | 2012-06-26 |
ATE160273T1 (de) | 1997-12-15 |
US6978168B2 (en) | 2005-12-20 |
US20060084884A1 (en) | 2006-04-20 |
US20030176799A1 (en) | 2003-09-18 |
EP0661948B1 (en) | 1997-11-19 |
US7289843B2 (en) | 2007-10-30 |
WO1994006349A1 (en) | 1994-03-31 |
DE69315354D1 (de) | 1998-01-02 |
US20060084971A1 (en) | 2006-04-20 |
US20050101874A1 (en) | 2005-05-12 |
CA2447239C (en) | 2010-10-19 |
US20060058693A1 (en) | 2006-03-16 |
JP3876344B2 (ja) | 2007-01-31 |
US20060052716A1 (en) | 2006-03-09 |
US20060084970A1 (en) | 2006-04-20 |
JP3581888B2 (ja) | 2004-10-27 |
DE69315354T2 (de) | 1998-03-19 |
CA2144973C (en) | 2010-02-09 |
CA2144973A1 (en) | 1994-03-31 |
US20060058692A1 (en) | 2006-03-16 |
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