JP6724163B2 - 組織の自己蛍光を使用した組織アブレーションの監視のためのシステム及び方法 - Google Patents
組織の自己蛍光を使用した組織アブレーションの監視のためのシステム及び方法 Download PDFInfo
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Description
特許文献1には、アブレーション(焼灼)エネルギーが身体に与えられて治療上の生体損傷を形成するような医学的処置が記載されており、生体損傷及び組織の画像を生成して生体損傷の深さを決定するためのシステム及び方法が記載されている。
実施例3において、少なくとも一つの発光素子は、光ファイバである、実施例1のカテーテルシステム。
実施例5において、少なくとも一つの発光素子は、少なくとも部分的にカテーテル先端部材内に配置されている、実施例1〜4のいずれか一つのカテーテルシステム。
実施例7において、少なくとも一つの光センサは少なくとも部分的にカテーテル先端部材内に配置されている、実施例1〜6のいずれか一つのカテーテルシステム。
実施例10において、制御回路は、感知された光の強度の変化率が閾値より大きいと判定することによって、生体損傷の形成を評価する、実施例8のカテーテルシステム。
実施例12において、組織損壊を評価するための方法は、組織の部位のFAD蛍光の強度の指標を受信することと、受信された強度の指標に応答して、組織の部位がアブレーションカテーテルによって損壊されているか否かを判定することと、を含む方法。
実施例14において、組織の部位が損壊しているか否かを判定することは、強度が閾値よりも大きいと判定することを更に含む、実施例12及び13のいずれか一つの方法。
実施例18において、カテーテル先端部材が少なくとも一つの光ファイバに連結された少なくとも一つの窓を含む、実施例16〜17のいずれか一つのシステム。
実施例20において、カテーテルが複数の光ファイバを更に含む、実施例16〜19のいずれか一つのシステム。
実施例23において、複数の光ファイバの少なくとも一つがカテーテル先端部材の遠位端で終結する、実施例16〜22のいずれか一つのシステム。
実施例25において、励起されたFAD分子によって放出されて、感知された光の強度を示す信号を受信することに応答して、生体損傷の形成を評価するように設計された制御回路を更に含む、実施例16〜24のいずれか一つのシステム。
Claims (11)
- カテーテルシステムにおいて、カテーテルは、
長尺なカテーテル本体と、
前記カテーテル本体の遠位端に連結されたカテーテル先端部材と、
フラビンアデニンジヌクレオチド(FAD)分子を励起させるために、405〜500nmの間の波長の光を放出するよう構成された少なくとも一つの発光素子と、
励起されたFAD分子によって放出された、500〜600nmの間の波長の光を感知するように構成された少なくとも一つの光センサと、
励起されたFAD分子によって放出されて前記光センサによって感知された500〜600nmの間の波長の光の強度が閾値より大きいことを示す信号の受信に応答して、生体損傷の形成が開始されたと評価するよう設計された制御回路と、
を含む、カテーテルシステム。 - 前記少なくとも一つの発光素子は、発光ダイオードである、請求項1のカテーテルシステム。
- 前記少なくとも一つの発光素子は、光ファイバである、請求項1のカテーテルシステム。
- 前記光ファイバは光源に通信可能に接続された、請求項3のカテーテルシステム。
- 前記少なくとも一つの発光素子は、その全部又は一部がカテーテル先端部材内に配置されている、請求項1から4のいずれか一項のカテーテルシステム。
- 前記カテーテル先端部材は、前記発光素子が放出した光および前記光センサが感知する光のうちの一方または両方を透過させるように構成された、少なくとも一つの窓又は光学的に透明なバルーンを含む、請求項5のカテーテルシステム。
- 前記少なくとも一つの光センサは、その全部又は一部が前記カテーテル先端部材内に配置されている、請求項1から6のいずれか一項のカテーテルシステム。
- 前記閾値は、前記感知された光の強度の変化率である、請求項1のカテーテルシステム。
- 前記閾値は、前記感知された光の強度の差である、請求項1のカテーテルシステム。
- 少なくとも一つの前記光センサに連結され、励起されたFAD分子の放出波長範囲外の波長を濾波するフィルタを更に備える、請求項1〜9のいずれか一項のカテーテルシステム。
- 前記放出波長範囲は500〜600nmである、請求項10に記載のカテーテルシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201662348901P | 2016-06-11 | 2016-06-11 | |
US62/348,901 | 2016-06-11 | ||
PCT/US2017/036905 WO2017214599A1 (en) | 2016-06-11 | 2017-06-09 | Systems and methods for monitoring tissue ablation using tissue autofluorescence |
Publications (3)
Publication Number | Publication Date |
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JP2019524168A JP2019524168A (ja) | 2019-09-05 |
JP2019524168A5 JP2019524168A5 (ja) | 2020-05-28 |
JP6724163B2 true JP6724163B2 (ja) | 2020-07-15 |
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EP (1) | EP3468448A1 (ja) |
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WO2020174666A1 (ja) * | 2019-02-28 | 2020-09-03 | オリンパス株式会社 | 医療用システム |
CN111772772B (zh) * | 2020-06-12 | 2022-04-08 | 成都市第三人民医院 | 射频消融控制系统 |
EP4289380A1 (en) * | 2022-06-09 | 2023-12-13 | Medlumics S.L. | Improving accuracy of ablation model through synchronization |
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JP3283128B2 (ja) * | 1993-12-03 | 2002-05-20 | オリンパス光学工業株式会社 | 蛍光観察内視鏡装置 |
US20030135122A1 (en) * | 1997-12-12 | 2003-07-17 | Spectrx, Inc. | Multi-modal optical tissue diagnostic system |
EP1272117A2 (en) * | 2000-03-31 | 2003-01-08 | Rita Medical Systems, Inc. | Tissue biopsy and treatment apparatus and method |
US6706004B2 (en) * | 2001-05-31 | 2004-03-16 | Infraredx, Inc. | Balloon catheter |
US7282723B2 (en) * | 2002-07-09 | 2007-10-16 | Medispectra, Inc. | Methods and apparatus for processing spectral data for use in tissue characterization |
US20040064053A1 (en) * | 2002-09-30 | 2004-04-01 | Chang Sung K. | Diagnostic fluorescence and reflectance |
JP4152402B2 (ja) * | 2005-06-29 | 2008-09-17 | 株式会社日立メディコ | 手術支援装置 |
JP2008061858A (ja) * | 2006-09-08 | 2008-03-21 | Toshiba Corp | 穿刺治療ナビゲーション装置 |
US9125562B2 (en) * | 2009-07-01 | 2015-09-08 | Avinger, Inc. | Catheter-based off-axis optical coherence tomography imaging system |
AU2010339972B2 (en) * | 2009-12-15 | 2015-04-30 | Emory University | System and method for providing real-time anatomical guidance in a diagnostic or therapeutic procedure |
JP5926806B2 (ja) * | 2011-09-22 | 2016-05-25 | ザ・ジョージ・ワシントン・ユニバーシティThe George Washingtonuniversity | アブレーションされた組織を視覚化するシステムと方法 |
US11717165B2 (en) * | 2011-11-07 | 2023-08-08 | Koninklijke Philips N.V. | Detection apparatus for determining a state of tissue |
JP6232044B2 (ja) * | 2012-03-23 | 2017-11-15 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 針変位速度に基づかれる測定集積時間を用いるフォトニック針システム |
US11096584B2 (en) * | 2013-11-14 | 2021-08-24 | The George Washington University | Systems and methods for determining lesion depth using fluorescence imaging |
JP6188612B2 (ja) * | 2014-03-26 | 2017-08-30 | 株式会社デンソー | 情報統合装置、情報統合システム、及びプログラム |
JP6635363B2 (ja) * | 2014-10-24 | 2020-01-22 | 京都府公立大学法人 | 腫瘍部位の判別のための方法、腫瘍部位の判別装置 |
KR102499045B1 (ko) * | 2014-11-03 | 2023-02-10 | 더 조지 워싱턴 유니버시티 | 병변 평가를 위한 시스템 및 방법 |
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- 2017-06-09 US US15/619,410 patent/US20170354357A1/en not_active Abandoned
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JP2019524168A (ja) | 2019-09-05 |
WO2017214599A1 (en) | 2017-12-14 |
US20170354357A1 (en) | 2017-12-14 |
EP3468448A1 (en) | 2019-04-17 |
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