JP2018094413A - 心臓のリアルタイムな電気解剖学的着色 - Google Patents
心臓のリアルタイムな電気解剖学的着色 Download PDFInfo
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Abstract
【解決手段】 心臓カテーテル法は、複数のセンサを有するプローブを用いて行われる。心臓は、第1のグラフィック画像として表示される。センサからの信号は、所定のアルゴリズムに従って処理されて、それぞれの出力を生成し、第1のグラフィック画像の全てよりも小さい第1のグラフィック画像の領域は、センサの位置に応じて選択され、センサの出力から導かれる値は、選択された領域上に第2のグラフィック画像として表示される。その後、第2のグラフィック画像は除去されて、最新版に置き換えられる。
【選択図】 図1
Description
本特許文献の開示の一部には、著作権保護の対象となる資料が含まれる。著作権者は、特許文献又は特許情報開示のうちの任意のものによる複製に対して、それが特許商標庁特許出願又は記録において明らかであるとき、異議を唱えないが、そうでなければ、いかなる全ての著作権を保有する。
本発明は、生体電流の測定に関する。より詳細には、本発明は、身体内に挿入された手段を用いて、心臓からの生体電気信号を記録するためのシステムに関する。
ここで図面については、開示される本発明の一実施形態に従って構築され、動作する、生体被験者の心臓内の電気活動を評価するためのシステム10の描図である図1を最初に参照する。このシステムは、患者の脈管系を通って心臓12の腔又は脈管構造内に操作者16によって経皮挿入されるカテーテル14を備えている。通常は医師である操作者16は、カテーテルの遠位先端18を、心臓壁、例えば、アブレーション標的部位と接触させる。その開示が参照により本明細書に援用される、米国特許第6,226,542号及び同第6,301,496号、並びに本願と同一譲受人に譲渡された米国特許第6,892,091号に開示される方法に従って、電気的活動マップが作成され得る。
ここで図2を参照すると、同図は、本発明の一実施形態による、心臓の電気生理学的マップのリアルタイム着色のための方法のフローチャートである。図2では、明確に示すために、プロセス工程を特定の線形的順序で示してある。しかしながら、かかる工程の多くは、並行して、非同期的に、又は異なる順序で行われてもよい点は明らかであろう。当業者であれば、プロセスを、例えば、状態図において、多数の相互に関連する状態又は事象としても代替的に表され得ることを理解するであろう。更には、例示されている全てのプロセス工程が、このプロセスの実行に必要とされるとは限らない場合もある。
(1) カテーテル処置の方法であって、
生体被験者の心臓内にプローブを挿入する工程であって、前記プローブの遠位部分は、その上に配置された複数のセンサを有している、工程と、
前記心臓を第1のグラフィック画像として表示する工程と、
反復して、
所定のアルゴリズムに従って前記センサからの信号を処理して、それぞれの出力を生成する工程と、
前記第1のグラフィック画像の全てよりも小さい前記第1のグラフィック画像上の領域を選択する工程と、
前記出力の少なくとも一部を前記選択された領域上に第2のグラフィック画像としてグラフィック表示する工程と、
その後、前記第2のグラフィック画像を除去する工程と、を含む、方法。
(2) 前記センサが電極であり、前記信号が生体電気電位(bioelectric voltages)である、実施態様1に記載の方法。
(3) 前記所定のアルゴリズムが、波面伝播の計算を含み、前記出力が、前記センサのそれぞれの位置における局所興奮到達時間である、実施態様2に記載の方法。
(4) 前記センサが温度センサである、実施態様1に記載の方法。
(5) 前記センサが接触力センサである、実施態様1に記載の方法。
(7) 前記第2のグラフィック画像を除去する工程が、ある時間間隔の経過後に行われる、実施態様1に記載の方法。
(8) 心呼吸周期に応じて前記センサからの信号をゲーティングすることを更に含む、実施態様1に記載の方法。
(9) 装置であって、
複数の電極及びセンサを有するプローブと、
前記プローブが生体被験者の心臓内のある位置にあるときに、前記電極及びセンサからデータを受け取るための電気回路と、
メモリと、
表示モニタと、
前記メモリ及び前記表示モニタに接続されたプロセッサであって、
前記心臓を第1のグラフィック画像として表示する工程と、
所定のアルゴリズムに従って前記センサからの信号を処理して、それぞれの出力を生成する工程と、
前記第1のグラフィック画像の全てよりも小さい前記第1のグラフィック画像上の領域を選択する工程と、
前記出力の少なくとも一部を前記選択された領域上に第2のグラフィック画像としてグラフィック表示する工程と、
その後、前記第2のグラフィック画像を除去する工程と、を反復して行うために動作する、プロセッサと、を備える、装置。
(10) 前記センサが電極であり、前記信号が生体電気電位である、実施態様9に記載の装置。
(12) 前記センサが温度センサである、実施態様9に記載の装置。
(13) 前記センサが接触力センサである、実施態様9に記載の装置。
(14) 前記センサが位置センサである、実施態様9に記載の装置。
(15) 前記第2のグラフィック画像を除去する工程が、ある時間間隔の経過後に行われる、実施態様9に記載の装置。
Claims (8)
- 装置であって、
複数の電極及びセンサを有するプローブと、
前記プローブが生体被験者の心臓内のある位置にあるときに、前記電極及びセンサからデータを受け取るための電気回路と、
メモリと、
表示モニタと、
前記メモリ及び前記表示モニタに接続されたプロセッサであって、
前記心臓を第1のグラフィック画像として表示する工程と、
所定のアルゴリズムに従って前記センサからの信号を処理して、それぞれの出力を生成する工程と、
前記第1のグラフィック画像の全てよりも小さい前記第1のグラフィック画像上の領域を選択する工程と、
前記出力の少なくとも一部を前記選択された領域上に第2のグラフィック画像としてグラフィック表示する工程と、
その後、前記第2のグラフィック画像を除去する工程と、を反復して行うために動作する、プロセッサと、を備える、装置。 - 前記センサが電極であり、前記信号が生体電気電位である、請求項1に記載の装置。
- 前記所定のアルゴリズムが、波面伝播の計算を含み、前記出力が、前記センサのそれぞれの位置における局所興奮到達時間である、請求項2に記載の装置。
- 前記センサが温度センサである、請求項1に記載の装置。
- 前記センサが接触力センサである、請求項1に記載の装置。
- 前記センサが位置センサである、請求項1に記載の装置。
- 前記第2のグラフィック画像を除去する工程が、ある時間間隔の経過後に行われる、請求項1に記載の装置。
- 前記センサからの信号に連係されるゲーティング回路であって、心呼吸周期に応じて前記センサからの信号をゲーティングするために動作する、ゲーティング回路、を更に備える、請求項1に記載の装置。
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US15/375,358 US11129574B2 (en) | 2016-12-12 | 2016-12-12 | Real time electroanatomical coloring of the heart |
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CN108209868A (zh) | 2018-06-29 |
IL255533A0 (en) | 2017-12-31 |
US11129574B2 (en) | 2021-09-28 |
CA2987760A1 (en) | 2018-06-12 |
EP3332704B1 (en) | 2022-04-27 |
IL255533B (en) | 2022-07-01 |
US20180160978A1 (en) | 2018-06-14 |
AU2017258899A1 (en) | 2018-06-28 |
CN108209868B (zh) | 2022-10-14 |
EP3332704A1 (en) | 2018-06-13 |
JP7023693B2 (ja) | 2022-02-22 |
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