JP7163007B2 - 拡張可能な構造体と導電要素を有する装置 - Google Patents
拡張可能な構造体と導電要素を有する装置 Download PDFInfo
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Description
出願は、2016年6月9日出願の、「Dual-function sensors for a basket catheter」という名称の、米国特許出願第15/177,775号の一部継続出願であり、この米国特許出願の利益を主張するものであり、この開示内容は、参照により本明細書に組み込まれる。
本発明の実施形態は、一般に、医療機器の分野、特に、心内心電図(ECG)信号を記録し及び/又は心臓組織をアブレートするカテーテルに関する。
本明細書で説明する実施形態は、複数の機能を、例えば、同時に実行する導電要素を備えるカテーテルを含む。例えば、導電要素は、磁場が存在する場合、導電要素が配設されるカテーテルの場所及び/又は配向を確認するために使用することができる信号を出力することにより、電磁センサとして機能することができる。更に、導電要素は、電極として機能することができる。例えば、導電要素は、ECG信号を組織から取得するか、又は、アブレート信号を組織内に伝えることによりなど、信号を組織とやりとりするために使用することができる。あるいは又は更に、導電要素は、インピーダンス、温度、歪み、及び/又は、他の関連のパラメータを測定するために使用することができる。
初めに、本発明のいくつかの実施形態による、バスケットカテーテル22の概略図である図1を参照する。図1は、被検者26の心臓25の電子解剖学的マッピングを実行するためにバスケットカテーテル22を使用する医師34を示す。マッピング手順中、スプライン28のバスケット20を備えるカテーテルの遠位端は、心臓25に挿入される。スプラインは、その後、心臓内組織と接触させられ、スプライン上の導電要素24は、心臓内ECG信号を取得する。バスケットカテーテルに接続され、コンピュータプロセッサ32を備えるコンソール36は、これらのECG信号を受信する。
(1) 装置であって、
被検者の体への挿入のために構成された拡張可能な構造体と、
前記拡張可能な構造体に結合された複数の導電要素であって、前記導電要素のうちのそれぞれは、それぞれのコイルを含み、
前記被検者の組織から電気絶縁される絶縁部分と、
前記組織と接触している間に信号を前記組織とやりとりするように構成された絶縁されていない部分とを有する、複数の導電要素と、
を備える、装置。
(2) 前記拡張可能な構造体は、バルーンを含む、実施態様1に記載の装置。
(3) 前記拡張可能な構造体は、バスケットを含む、実施態様1に記載の装置。
(4) 前記導電要素のうちのそれぞれは、前記コイルに接続された電極を含み、前記電極は、前記信号を前記組織とやりとりするように構成され、前記コイルは、前記やりとりされた信号を搬送するように構成されている、実施態様1に記載の装置。
(5) 前記コイルは、前記コイルが接続されている前記電極に近位に位置する、実施態様4に記載の装置。
(7) 前記コイルは、螺旋コイルである、実施態様1に記載の装置。
(8) 前記コイルは、平坦である、実施態様1に記載の装置。
(9) 前記信号を前記導電要素と前記装置の近位端との間で搬送するように構成された、前記導電要素のうちのそれぞれの導電要素に接続された2つのリードを更に備える、実施態様1に記載の装置。
(10) 前記導電要素のうちのそれぞれの導電要素の少なくとも一部は、前記導電要素が被検者の体の内側で受ける歪みに応じて変動する電気抵抗を有する、実施態様1に記載の装置。
(12) 前記コイルは、前記絶縁されていない部分を含む、実施態様1に記載の装置。
(13) 方法であって、
導電要素から、磁場により前記導電要素全体にわたって誘発された電圧差を、前記導電要素をカテーテルの近位端に接続する2つのリードを介して受け取ることと、
前記電圧差に応じて、前記導電要素の場所を確認することと、
前記導電要素が被検者の組織と接触している間、信号を前記導電要素及び前記リードのうちの少なくとも1つを介して前記組織とやりとりすることと、
を含む、方法。
(14) 前記信号は、心電図(ECG)信号であり、前記信号をやりとりすることは、前記ECG信号を前記組織から取得することを含む、実施態様13に記載の方法。
(15) 前記信号は、アブレーション信号であり、前記信号をやりとりすることは、前記アブレーション信号を前記組織内に伝えることを含む、実施態様13に記載の方法。
(17) 前記導電要素は、シングルループコイルである、実施態様13に記載の方法。
(18) 前記導電要素は、螺旋コイルである、実施態様13に記載の方法。
(19) 前記電圧差は、第1の電圧差であり、前記方法は、温度を、第2の電圧差を前記リード全体にわたって測定することにより測定することを更に含む、実施態様13に記載の方法。
(20) 前記導電要素に掛けられた歪みを、前記導電要素の電気抵抗を測定することにより測定することを更に含む、実施態様13に記載の方法。
Claims (7)
- 装置であって、
バルーンを備えた拡張可能な構造体であって、被検者の体への挿入のために構成された、拡張可能な構造体と、
前記バルーンの表面に印刷された複数の導電要素であって、前記導電要素のうちのそれぞれは、
前記被検者の組織から電気絶縁されるコイルと、
前記組織と接触している間に信号を前記組織とやりとりするように構成された絶縁されていない部分とを有する、複数の導電要素と、
を備えており、
前記絶縁されていない部分は、前記コイルに接続された電極を含み、前記電極は、前記信号を前記組織とやりとりするように構成され、前記コイルは、前記やりとりされた信号を搬送するように構成されている、装置。 - 前記コイルは、前記コイルが接続されている前記電極に近位に位置する、請求項1に記載の装置。
- 前記コイルは、シングルループコイルである、請求項1に記載の装置。
- 前記コイルは、平坦である、請求項1に記載の装置。
- 前記信号を前記導電要素と前記装置の近位端との間で搬送するように構成された、前記コイルに接続された2つのリードを更に備える、請求項1に記載の装置。
- 前記コイルは、前記コイルが前記被検者の体の内側で受ける歪みに応じて変動する電気抵抗を有する、請求項1に記載の装置。
- 前記コイルは、熱電対接合部を含む、請求項1に記載の装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/177,775 US20170354338A1 (en) | 2016-06-09 | 2016-06-09 | Dual-function sensors for a basket catheter |
US15/177,775 | 2016-06-09 | ||
US15/359,838 US10905329B2 (en) | 2016-06-09 | 2016-11-23 | Multi-function conducting elements for a catheter |
US15/359,838 | 2016-11-23 |
Publications (2)
Publication Number | Publication Date |
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JP2017217485A JP2017217485A (ja) | 2017-12-14 |
JP7163007B2 true JP7163007B2 (ja) | 2022-10-31 |
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Application Number | Title | Priority Date | Filing Date |
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JP2017113536A Active JP7163007B2 (ja) | 2016-06-09 | 2017-06-08 | 拡張可能な構造体と導電要素を有する装置 |
Country Status (7)
Country | Link |
---|---|
US (2) | US10905329B2 (ja) |
EP (2) | EP3254614B1 (ja) |
JP (1) | JP7163007B2 (ja) |
CN (1) | CN107485444B (ja) |
AU (1) | AU2017203777A1 (ja) |
CA (1) | CA2970086A1 (ja) |
IL (1) | IL252384B (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10974031B2 (en) * | 2017-12-28 | 2021-04-13 | Biosense Webster (Israel) Ltd. | Balloon catheter with internal distal end |
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CN107485444A (zh) | 2017-12-19 |
EP3254614B1 (en) | 2020-08-12 |
AU2017203777A1 (en) | 2018-01-04 |
US20210145282A1 (en) | 2021-05-20 |
US10905329B2 (en) | 2021-02-02 |
IL252384A0 (en) | 2017-07-31 |
EP3756538A1 (en) | 2020-12-30 |
EP3254614A1 (en) | 2017-12-13 |
CA2970086A1 (en) | 2017-12-09 |
IL252384B (en) | 2021-05-31 |
CN107485444B (zh) | 2023-02-17 |
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US20170354364A1 (en) | 2017-12-14 |
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