JP2013518676A - カテーテルナビゲーションおよびチップの位置を特定するための装置および方法 - Google Patents
カテーテルナビゲーションおよびチップの位置を特定するための装置および方法 Download PDFInfo
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Abstract
【解決手段】一実施例では、カテーテル等の留置医療デバイスの位置を決定するために、皮膚に基づくECG波形のピークの検出に基づいて、血管内ECG波形の分析をトリガーするための方法が開示されている。別の実施例では、検出されたP波のエネルギのデータを分析することによって、カテーテルまたは他の医療デバイスの血管系内の位置を決定できる。更に別の実施例では、無菌領域を通して使用可能に接続するために磁気で接続したデバイスを開示する。
【選択図】図16
Description
中心静脈カテーテル(CVC)の配置方法を以下に説明する。
皮下埋込型ポートのカテーテルピースの配置方法は、CVCの配置方法と同様である。アダプタ(200)を皮下埋込型ポートのカテーテルに接続し、生理食塩水が入った注射器をユニバーサルアダプタの他端に接続しなければならない。皮下埋込型ポートのカテーテルに配置された注射針に異なる電気アダプタを接続すべきである。所望の位置に達した後、カテーテルを皮下埋込型ポートに接続すべきである。
開端および閉端の両方の抹消挿入型カテーテルを本明細書中に説明したように配置できる。PICCの配置方法は、CVCの配置方法と同様である。カテーテルを所望の方向に前進させ損なった場合には、本明細書中に説明した本発明に基づく操向機構を使用してPICCのチップを曲げることができる。
血液透析カテーテルの配置方法は、CVCを配置するための本明細書中に説明した方法と同様である。カテーテルを所望の方向に前進し損なった場合には、本明細書中に説明した本発明に基づく操向機構を使用して、血液透析カテーテルのチップを曲げることができる。血液透析カテーテルの内腔の各々について、電気記録システムを使用して1つの内腔を右心房内に配置し、他の内腔を大静脈心房交差点に配置するように案内するように、アダプタ(220)を備えた2つの異なるガイドワイヤを使用してもよい。血液透析カテーテルの内腔の各々を、各内腔のアダプタ(220)を電気記録システムのECGケーブルの異なる電極に接続することによって、順次独立して、または、同時に配置できる。
従来、不整脈の患者は、血管内ECG法を使用し、中心静脈ライン配置を案内する手順から除外されてきた。これは、P波の形状に目に見える変化がないためである。本明細書中に説明したP波を分析するためのエネルギ基準を使用し、不整脈の患者に中心静脈アクセスデバイスの配置を案内できる。不整脈の患者では、洞房結節によって発生した電気信号は、特定の程度のランダム性を有し、そのため、これらの信号は、一貫したP波を発生させるために同期しない。とはいえ、上述の論考に示すように、洞房結節の電気的活動は、存在し、洞房結節の近傍に代表的な強さの電気信号を発生させる。一実施例では、アルゴリズムは、血管系内の特定の位置のマッピングを行うために、血管内電気記録図から計測したエネルギを使用する。このように、このアルゴリズムは、位置を示すのが電気エネルギだけであって、P波の形状が位置を示さない場合に、不整脈の患者において配置を案内するのに使用できる。
本明細書中に説明したデバイスを使用し、心臓の電気活動の特定の態様を連続的にまたは断続的にモニタできる。電気記録システムに接続された電気アダプタまたはアダプタ(200)をモニタリングに使用できる。電気アダプタは、任意の静脈アクセスデバイスまたは任意の動脈デバイスに導入される、任意のスタイレットまたは他の導電性部材に接続できる。アダプタ(200)は、導電性溶液、例えば、生理食塩水を注入できる限り、更に、任意の静脈ラインまたは動脈ラインに接続できる。アダプタ(200)は、輸液ポンプを使用して導電性流体が身体に挿入される場合にも使用できる。チップ位置、および/または、心臓の電気活動の特定の態様をモニタすることは、多くの臨床状況で実行できる。
10…患者コネクタインタフェース
20…増幅器
40…マイクロプロセッサ
50…患者絶縁ブロック
60…電源
70…シリアルインタフェース
80…ワイヤレスインタフェース
90…コンピュータモジュール
100…装置
110…血管アクセスデバイス
120…アダプタ
130…電子モジュール
140…コンピュータモジュール
150…ワイヤレス接続部
160…周辺機器
170…アルゴリズム
180…グラフィカルユーザインタフェース
200…血管内デバイス用アダプタ
201…デバイス
220…本体
230…端部
250…デバイス
260…デバイス
265…カテーテル
270…錐体部
270…円錐部
300…カテーテル
310…スタイレット
320…操向部材
320…ディスプレイウィンドウ
350…カテーテルチップ
410…基準電極
415…血管内デバイス
1105…エラー検出ブロック
1115…予備演算処理ブロック
1120…適応フィルタリングブロック
1130…時間領域パターン認識ブロック
1140…周波数領域パターン認識ブロック
1150…決定支援アルゴリズムブロック
1160…システム
1250…決定支援アルゴリズムブロック
Claims (29)
- 患者の身体内の留置医療デバイスの位置を特定するための方法において、
第1ECG波形の第1ピークを検出する工程と、
前記第1ピークが検出されたときに、第2ECG波形の分析をトリガーする工程と、
前記第2ECG波形の第2ピークを検出する工程と、
前記留置医療デバイスの一部分の位置を前記第2ピークの特徴に基づいて決定する工程と
を備える、位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、
更に、前記第2ピークを反復的に検出する工程を備え、
前記位置を決定する工程は、更に、前記第2ピークが反復的に検出される場合の前記特徴の変化に基づいて、前記留置医療デバイスの前記一部分の前記位置を決定する工程を備える
位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、
前記第1ECG波形は、皮膚に配置された第1電極を介して取得され、
前記第2ECG波形は、前記身体内の位置に向けられた導電路に使用可能に接続された第2電極を介して取得され、
前記留置デバイスは、カテーテルを含み、
前記留置デバイスの前記一部分は、前記カテーテルの遠位チップを含む
位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、
前記第2ECG波形の分析をトリガーする工程は、更に、前記身体内の血管内に配置された前記第2電極を介して、前記分析をトリガーする工程を備える
位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、
前記第1ピークを検出する工程および前記第2ピークを検出する工程は、更に、
皮膚に配置された前記第1電極を介して取得された第1ECG波形における、R波ピークを有する第1ピークを検出する工程と、
前記第2ECG波形における、P波ピークを有する第2ピークを検出する工程と
を備える、位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、
更に、前記第1ECG波形および前記第2ECG波形をディスプレイの第1部分に同時に描く工程を備える
位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、更に、
前記第1ECG波形および前記第2ECG波形の現在の図をディスプレイの第1部分に同時に描く工程と、
前記第1ECG波形および前記第2ECG波形の過去の図を前記ディスプレイの第2部分に描く工程と
を備える、位置を特定するための方法。 - 請求項7に記載の位置を特定するための方法であって、更に、
前記留置医療デバイスの前記一部分の前記身体内での位置を表す位置アイコンを、前記ディスプレイの一部分に描く工程と、
前記留置医療デバイスの前記一部分の前記位置の反復的な決定に従って、前記位置アイコンを更新して描く工程と
を備える、位置を特定するための方法。 - 請求項8に記載の位置を特定するための方法であって、
前記位置アイコンを描く工程は、更に、前記患者の心臓の描写画像に重ねて前記位置アイコンを描く工程を備える
位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、
更に、前記第1ECG波形および第2ECG波形のうちの少なくとも1つを、ワイヤレス伝送を介して、携帯電話または手持ち操作可能なデバイスのディスプレイ上に描く工程を備える
位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、
前記第2ECG波形の前記分析をトリガーする工程は、カテーテル位置特定装置のプロセッサによって、自動的に実行される
位置を特定するための方法。 - 請求項1に記載の位置を特定するための方法であって、
前記第1ECG波形の前記第1ピークとしてR波ピークを検出する工程は、不整脈によって前記第1ECG波形にP波ピークが存在しない場合であって、前記第2ECG波形にP波セグメントの少なくとも一部が存在する場合に、実行される
位置を特定するための方法。 - 患者の身体内の留置医療デバイスの位置を特定するための方法であって、
前記医療デバイスに連結された電極であって、患者の前記身体内への導電路を介して血管内ECG信号を検知する電極を介して、ECG波形のP波を検出する工程と、
前記P波の正の振幅の量と、前記P波の負の振幅の量と、のうちの、少なくとも一方を計算する工程と、
前記P波の前記正の振幅および前記負の振幅のうちの少なくとも一方の前記計算された量に基づいて、前記留置医療デバイスの一部分の位置を決定する工程と
を備える、位置を特定するための方法。 - 請求項13に記載の位置を特定するための方法であって、
更に、前記留置医療デバイスの前記一部分の前記決定された位置をディスプレイ上に描く工程を備える
位置を特定するための方法。 - 請求項13に記載の位置を特定するための方法であって、
更に、前記ECG信号の前記検出されたP波をディスプレイ上に描く工程を備える
位置を特定するための方法。 - 請求項13に記載の位置を特定するための方法であって、
前記正の振幅の量は、前記ECG波形のベースラインよりも上方のP波の振幅の量を含み、
前記負の振幅の量は、前記ECG波形のベースラインよりも下方のP波の負の振幅の量を含む
位置を特定するための方法。 - 請求項13に記載の位置を特定するための方法であって、
前記P波を検出する工程、前記量のうちの少なくとも1つを計算する工程、および、前記位置を決定する工程は、反復的に実行されて、それによって、前記P波の前記正の振幅および前記負の振幅のうちの少なくとも1つの前記量の経時的変化が決定される
位置を特定するための方法。 - 請求項17に記載の位置を特定するための方法であって、
前記留置医療デバイスの前記一部分の前記位置を決定する工程は、更に、前記P波の前記振幅が正であり、正の振幅が増加している場合に、前記留置医療デバイスの前記一部分が、前記患者の心臓の洞房結節の上方にあり、かつ、該洞房結節に向かって移動していることを決定する工程を備える
位置を特定するための方法。 - 請求項18に記載の位置を特定するための方法であって、
前記留置医療デバイスの前記一部分の前記位置を決定する工程は、更に、前記P波の前記振幅が負であり、負の振幅が増加している場合に、前記留置医療デバイスの前記一部分が、前記洞房結節の下方にあり、かつ、該洞房結節から遠ざかる方向に移動していることを決定する工程を備える
位置を特定するための方法。 - 請求項13に記載の位置を特定するための方法であって、
前記P波を検出する工程、少なくとも1つの量を計算する工程、および前記位置を決定する工程のうちの少なくとも1つを携帯電話または携帯式デバイスによって少なくとも部分的に制御し、または、モニタする
位置を特定するための方法。 - 無菌領域内の第1導電性構成要素を、前記無菌領域の外部の第2導電性構成要素に電気的に接続するための接続デバイスであって、
導電性表面を有する本体であって、該導電性表面が磁性であるように磁気要素が設けられた本体を備え、
前記第2導電性構成要素は、前記接続デバイスに電気的に接続され、
前記第1導電性構成要素は、前記接続デバイスに電気的に接続され、
前記第1導電性構成要素の前記接続デバイスへの電気的な接続は、前記第1導電性構成要素の磁気的に引き付け可能なコネクタを、前記導電性表面に手で触ることなく、前記導電性表面上に配置することによって、前記コネクタが前記導電性表面に磁気で固定されるように行われる
接続デバイス。 - 無菌領域内の第1導電性構成要素を、前記無菌領域の外部の第2導電性構成要素に電気的に接続するための接続デバイスであって、
カップ状レセプタクルを有する本体であって、該レセプタクル内に導電性表面を有する本体と、
前記カップ状レセプタクルに近接して配置された磁気要素と
を備え、
前記第2導電性構成要素は、前記接続デバイスに電気的に接続され、
前記第1導電性構成要素は、前記接続デバイスに電気的に接続され、
前記第1導電性構成要素の前記接続デバイスへの電気的な接続は、前記導電性第1構成要素のコネクタの一端を、前記接続デバイスの表面に手で触ることなく、前記接続デバイスの前記カップ状レセプタクルに挿入することによって、前記コネクタが前記カップ状レセプタクル内の前記導電性表面に磁気的に固定されるように行われる
接続デバイス。 - 請求項22に記載の接続デバイスであって、
前記第1導電性構成要素の前記コネクタは、堅く、細長い本体の一端に配置されている
接続デバイス。 - 請求項22に記載の接続デバイスであって、
前記第1導電性構成要素は、ECGリードを備え、
前記第2導電性構成要素は、ECGシステムに接続するための紐状接続手段を備える
接続デバイス。 - 不整脈の患者の身体内の留置医療デバイスの位置を特定するための方法であって、
前記医療デバイスに連結された電極であって、前記患者の前記身体内への導電路を介して血管内ECG信号を検知する電極を介して、ECG波形のP波の少なくとも一部を検出する工程と、
前記P波部分の正の振幅の量と、前記P波部分の負の振幅の量と、前記P波部分の電気エネルギの量と、のうちの、少なくとも1つを計算する工程と、
前記P波部分の前記正の振幅および前記負の振幅のうちの少なくとも一方の前記計算された量に基づいて、前記留置医療デバイスの一部分の位置を決定する工程と
を備える、位置を特定するための方法。 - 請求項25に記載の位置を特定するための方法であって、
前記P波部分の正の振幅の前記量と、前記P波部分の負の振幅の前記量と、のうちの、少なくとも一方を計算する工程は、更に、前記P波部分の正の振幅の前記量と、前記P波部分の負の振幅の前記量と、のうちの、少なくとも一方の周波数を検出する工程を備える
位置を特定するための方法。 - 患者の身体内の留置医療デバイスの位置を特定するための方法であって、
皮膚に配置された電極を介して皮膚ECG波形を検出する工程と、
前記医療デバイスに結合された電極であって、前記患者の前記身体内への導電路を介して血管内ECG信号を検知する電極を介して、血管内ECG波形を検出する工程と、
前記皮膚ECG波形および前記血管内ECG波形の現在の図を第1ウィンドウに表示する工程と、
前記皮膚ECG波形および前記血管内ECG波形の過去の図を第2ウィンドウに表示する工程と
を備える、位置を特定するための方法。 - 請求項27に記載の位置を特定するための方法であって、
前記皮膚ECG波形および前記血管内波形は、時間が同期した態様で表示され、
前記第1ウィンドウおよび前記第2ウィンドウは、単一のユーザインタフェースに含まれる
位置を特定するための方法。 - 請求項27に記載の位置を特定するための方法であって、
前記血管内ECG信号を検知する前記電極は、前記患者の血管系内の前記医療デバイスに含まれる
位置を特定するための方法。
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US12/854,083 US9445734B2 (en) | 2009-06-12 | 2010-08-10 | Devices and methods for endovascular electrography |
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EP2531098B1 (en) | 2020-07-15 |
US20150374261A1 (en) | 2015-12-31 |
EP2531098A4 (en) | 2015-09-09 |
US9125578B2 (en) | 2015-09-08 |
WO2011097312A1 (en) | 2011-08-11 |
BR112012019354B1 (pt) | 2021-09-08 |
US20110196248A1 (en) | 2011-08-11 |
BR112012019354A2 (ja) | 2012-08-02 |
US10231643B2 (en) | 2019-03-19 |
US20180070856A1 (en) | 2018-03-15 |
EP2531098A1 (en) | 2012-12-12 |
CN102821679B (zh) | 2016-04-27 |
CN102821679A (zh) | 2012-12-12 |
ES2811107T3 (es) | 2021-03-10 |
US10912488B2 (en) | 2021-02-09 |
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