JP6790316B2 - 視覚化カテーテル - Google Patents
視覚化カテーテル Download PDFInfo
- Publication number
- JP6790316B2 JP6790316B2 JP2017528161A JP2017528161A JP6790316B2 JP 6790316 B2 JP6790316 B2 JP 6790316B2 JP 2017528161 A JP2017528161 A JP 2017528161A JP 2017528161 A JP2017528161 A JP 2017528161A JP 6790316 B2 JP6790316 B2 JP 6790316B2
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- balloon
- energy
- catheter
- support assembly
- tissue
- 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.)
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Landscapes
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Description
本出願は、2015年11月25日に出願された米国特許出願第14/952,048号および2014年11月25日に出願された米国仮出願第62/084,174号の利益および優先権を主張し、それらの全体は参照することにより本明細書に組み込まれる。
本開示は、概して、視覚化カテーテルおよびシステムに関する。
なお、出願当初の請求項は、以下の通りであった。
〔請求項1〕
焼灼された組織を視覚化するカテーテルであって、
カテーテル本体と、
前記カテーテル本体の遠位端を越えて延設されたサポートアセンブリであって、その内部を通る内腔を有する前記サポートアセンブリと、
近位端および遠位端を有するバルーンであって、前記バルーンの前記近位端は、前記カテーテル本体に取り付けられ、前記バルーンの前記遠位端は、前記サポートアセンブリに取り付けられ、前記遠位端において前記サポートアセンブリの前記内腔と位置合わせされた開口を有して前記カテーテル本体から前記バルーンの外部への連続する通路を提供する前記バルーンと、
を含んで構成される、カテーテル。
〔請求項2〕
前記サポートアセンブリは、前記カテーテル内への格納および引き出しが可能である、請求項1記載のカテーテル。
〔請求項3〕
前記バルーンの内部へと延設されて光を前記バルーンへおよび前記バルーンから送る1以上の光ファイバをさらに含んで構成される、請求項1又は請求項2記載のカテーテル。
〔請求項4〕
前記バルーンの内部に収容された光源および光検出器をさらに含んで構成される、請求項1〜請求項3のいずれか1つに記載のカテーテル。
〔請求項5〕
前記バルーンは、ベル形に形成されて肺静脈内に嵌まる、請求項1〜請求項4のいずれか1つに記載のカテーテル。
〔請求項6〕
前記バルーンは、順応性を有し紫外(UV)線を透過する材料で形成される、請求項1〜請求項5のいずれか1つに記載のカテーテル。
〔請求項7〕
1以上のアブレーション電極が、前記バルーンに配置されて、焼灼エネルギーを組織に到達させる、請求項1〜請求項6のいずれか1つに記載のカテーテル。
〔請求項8〕
遠位先端は、焼灼エネルギーを前記組織に到達させるように構成され、
前記焼灼エネルギーは、高周波(RF)エネルギー、マイクロ波エネルギー、電気エネルギー、電磁エネルギー、低温エネルギー、レーザーエネルギー、超音波エネルギー、音響エネルギー、化学エネルギー、熱エネルギーおよびそれらの組み合わせからなる群から選択される、請求項1〜請求項7のいずれか1つに記載のカテーテル。
〔請求項9〕
超音波変換器をさらに含んで構成される、請求項1〜請求項8のいずれか1つに記載のカテーテル。
〔請求項10〕
焼灼された組織を視覚化するシステムであって、
カテーテルと、
光源と、
光検出器と、
を含んで構成され、
前記カテーテルは、
カテーテル本体と、
前記カテーテル本体の遠位端を越えて延設されたサポートアセンブリであって、その内部を通る内腔を有する前記サポートアセンブリと、
近位端および遠位端を有するバルーンであって、前記バルーンの前記近位端は、前記カテーテル本体に取り付けられ、前記バルーンの前記遠位端は、前記サポートアセンブリに取り付けられ、前記遠位端において前記サポートアセンブリの前記内腔と位置合わせされた開口を有して前記カテーテル本体から前記バルーンの外部への連続する通路を提供する前記バルーンと、
を含んで構成される、システム。
〔請求項11〕
前記光源および前記光検出器と連通し、前記カテーテル本体の内部を通って前記バルーンの内部へと延設されて、遠位先端の外の組織を照射し、前記組織から反射した光エネルギーを集めて前記光検出器に中継する1以上の光ファイバをさらに含んで構成される、請求項10記載のシステム。
〔請求項12〕
前記光源および前記光検出器は、前記バルーンに収容されている、請求項10又は請求項11記載のシステム。
〔請求項13〕
前記サポートアセンブリは、前記カテーテル内への格納および引き出しが可能である、請求項10〜請求項12のいずれか1つに記載のシステム。
〔請求項14〕
前記光源は、約300nm〜約400nmの間の波長を有する光を発する、請求項10〜請求項13のいずれか1つに記載のシステム。
〔請求項15〕
1以上のアブレーション電極が、前記バルーンに配置されて、焼灼エネルギーを組織に到達させる、請求項10〜請求項14のいずれか1つに記載のシステム。
〔請求項16〕
前記バルーンと連通して焼灼エネルギーを前記組織に到達させる焼灼エネルギー源をさらに含んで構成され、
前記焼灼エネルギーは、高周波(RF)エネルギー、マイクロ波エネルギー、電気エネルギー、電磁エネルギー、低温エネルギー、レーザーエネルギー、超音波エネルギー、音響エネルギー、化学エネルギー、熱エネルギーおよびそれらの組み合わせからなる群から選択される、請求項10〜請求項15のいずれか1つに記載のシステム。
〔請求項17〕
左心房への経中隔アクセスを行う方法であって、
カテーテルを右心房に進める工程を含み、
前記カテーテルは、
カテーテル本体と、
前記カテーテル本体の遠位端を越えて延設されたサポートアセンブリであって、その内部を通る内腔を有する前記サポートアセンブリと、
近位端および遠位端を有するバルーンであって、前記バルーンの前記近位端は、前記カテーテル本体に取り付けられ、前記バルーンの前記遠位端は、前記サポートアセンブリに取り付けられ、前記遠位端において前記サポートアセンブリの前記内腔と位置合わせされた開口を有して前記カテーテル本体から前記バルーンの外部への連続する通路を提供する前記バルーンと、
カメラと、
を含んで構成され、
前記方法は、さらに、
穿刺器具を前記カテーテル本体の内部の前記通路を通して前記バルーンの外に到達させる工程と、
前記カメラで視覚化しつつ、前記穿刺器具を卵円窩に押し付けて前記左心房へのアクセス孔を形成する工程と、
を含む、方法。
〔請求項18〕
前記カメラは、前記バルーンの内部に収容されている、請求項17記載の方法。
〔請求項19〕
前記カメラは、前記カテーテルの外にあって、前記バルーンの外の組織を視覚化するために前記カメラから前記バルーンまで1以上の光ファイバが延設されている、請求項17又は請求項18記載の方法。
〔請求項20〕
アブレーションマッピングの方法であって、
アブレーションマッピングを必要とする心臓組織にカテーテルを進める工程を含み、
前記カテーテルは、
カテーテル本体と、
前記カテーテル本体の遠位端を越えて延設されたサポートアセンブリであって、その内部を通る内腔を有する前記サポートアセンブリと、
近位端および遠位端を有するバルーンであって、前記バルーンの前記近位端は、前記カテーテル本体に取り付けられ、前記バルーンの前記遠位端は、前記サポートアセンブリに取り付けられ、前記遠位端において前記サポートアセンブリの前記内腔と位置合わせされた開口を有して前記カテーテル本体から前記バルーンの外部への連続する通路を提供する前記バルーンと、
カメラと、
を含んで構成され、
前記方法は、さらに、
前記心臓組織の領域内の還元型ニコチンアミドアデニンジヌクレオチド(NADH)を励起させる工程と、
前記心臓組織から反射した光を集めて、集めた光を光検出器に送る工程と、
前記心臓組織の前記領域を画像化して、前記心臓組織の前記領域のNADH蛍光を検出する工程と、
画像化した被照射心臓組織の表示を生成する工程と、
を含み、
前記表示は、焼灼された心臓組織を、非焼灼心臓組織よりも少ない蛍光を有するものとして描出するものである、方法。
Claims (14)
- 焼灼された組織を視覚化するカテーテルであって、
カテーテル本体と、
前記カテーテル本体の遠位端を越えて所定の延設長さ延設されたサポートアセンブリであって、その内部を通る内腔を有する前記サポートアセンブリと、
近位端および閉じられた遠位端を有するバルーンであって、前記近位端は、前記カテーテル本体に取り付けられる前記バルーンと、
を含んで構成され、
前記サポートアッセンブリの遠位端は、前記バルーンの前記閉じられた遠位端の内側の表面に係合し、
前記サポートアッセンブリは、前記カテーテル本体内に格納可能に配置されて、前記バルーンを支持し、かつ、前記カテーテル本体に対し前記サポートアッセンブリを相対移動させることで調整される前記所定の延設長さを変化させることにより、前記バルーンを調整する、カテーテル。 - 前記バルーンの内部へと延設されて光を前記バルーンへおよび前記バルーンから送る1以上の光ファイバをさらに含んで構成される、請求項1記載のカテーテル。
- 前記バルーンの内部に収容された光源および光検出器をさらに含んで構成される、請求項1又は請求項2記載のカテーテル。
- 前記バルーンは、ベル形に形成されて肺静脈内に嵌まる、請求項1〜請求項3のいずれか1つに記載のカテーテル。
- 前記バルーンは、順応性を有し紫外(UV)線を透過する材料で形成される、請求項1〜請求項4のいずれか1つに記載のカテーテル。
- 1以上のアブレーション電極が、前記バルーンに配置されて、焼灼エネルギーを組織に到達させる、請求項1〜請求項5のいずれか1つに記載のカテーテル。
- 遠位先端は、焼灼エネルギーを前記組織に到達させるように構成され、
前記焼灼エネルギーは、高周波(RF)エネルギー、マイクロ波エネルギー、電気エネルギー、電磁エネルギー、低温エネルギー、レーザーエネルギー、超音波エネルギー、音響エネルギー、化学エネルギー、熱エネルギーおよびそれらの組み合わせからなる群から選択される、請求項1〜請求項6のいずれか1つに記載のカテーテル。 - 超音波変換器をさらに含んで構成される、請求項1〜請求項7のいずれか1つに記載のカテーテル。
- 焼灼された組織を視覚化するシステムであって、
カテーテルと、
光源と、
光検出器と、
を含んで構成され、
前記カテーテルは、
カテーテル本体と、
前記カテーテル本体の遠位端を越えて所定の延設長さ延設されたサポートアセンブリであって、その内部を通る内腔を有する前記サポートアセンブリと、
近位端および閉じられた遠位端を有するバルーンであって、前記近位端は、前記カテーテル本体に取り付けられる前記バルーンと、
を含んで構成され、
前記サポートアッセンブリの遠位端は、前記バルーンの前記閉じられた遠位端の内側の表面に係合し、
前記サポートアッセンブリは、前記カテーテル本体内に格納可能に配置されて、前記バルーンを支持し、かつ、前記カテーテル本体に対し前記サポートアッセンブリを相対移動させることで調整される前記所定の延設長さを変化させることにより、前記バルーンを調整する、システム。 - 前記光源および前記光検出器と連通し、前記カテーテル本体の内部を通って前記バルーンの内部へと延設されて、遠位先端の外の組織を照射し、前記組織から反射した光エネルギーを集めて前記光検出器に中継する1以上の光ファイバをさらに含んで構成される、請求項9記載のシステム。
- 前記光源および前記光検出器は、前記バルーンに収容されている、請求項9又は請求項10記載のシステム。
- 前記光源は、約300nm〜約400nmの間の波長を有する光を発する、請求項9〜請求項11のいずれか1つに記載のシステム。
- 1以上のアブレーション電極が、前記バルーンに配置されて、焼灼エネルギーを組織に到達させる、請求項9〜請求項12のいずれか1つに記載のシステム。
- 前記バルーンと連通して焼灼エネルギーを前記組織に到達させる焼灼エネルギー源をさらに含んで構成され、
前記焼灼エネルギーは、高周波(RF)エネルギー、マイクロ波エネルギー、電気エネルギー、電磁エネルギー、低温エネルギー、レーザーエネルギー、超音波エネルギー、音響エネルギー、化学エネルギー、熱エネルギーおよびそれらの組み合わせからなる群から選択される、請求項9〜請求項13のいずれか1つに記載のシステム。
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US14/952,048 US20160143522A1 (en) | 2014-11-25 | 2015-11-25 | Visualization Catheters |
US14/952,048 | 2015-11-25 |
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