JP5558580B2 - 統合圧力測定を使用する光干渉断層撮影システム、光干渉断層撮影システム用プローブ、光干渉断層撮影システム用の組み合わせプローブ、及びoctシステムの作動方法 - Google Patents
統合圧力測定を使用する光干渉断層撮影システム、光干渉断層撮影システム用プローブ、光干渉断層撮影システム用の組み合わせプローブ、及びoctシステムの作動方法 Download PDFInfo
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- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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Description
本出願は、米国出願番号12/689,724(2010年1月19日出願)の継続で、その内容全体が参照により本明細書に組み込まれる。
Claims (18)
- 干渉計であって、
前記干渉計に光通信可能に接続された波長掃引レーザーと、
前記干渉計に光通信可能に接続された基準反射体と、
を含む前記干渉計と、
第一の光検出器と、
第一の光コネクタと、
を含むプローブインターフェースと、
前記第一の光検出器から出力された電気信号が入力されるアナログ・デジタル変換器と、
前記アナログ・デジタル変換器と電気通信を行う処理システムと、
前記処理システムと電気通信を行うディスプレーと、
を含む取得及び表示システムと、
光ファイバー、光圧力センサー、及びビームスプリッターを含むプローブと、を備え
前記ビームスプリッターは、光干渉断層撮影のための特定の波長における前記光ファイバーからの入射光の一部である第1部分を反射し、前記入射光の他の部分を圧力測定のために前記光圧力センサーに伝達し、
前記プローブは、前記プローブインターフェースの前記第一の光コネクタと光接続可能なように構成されている、
統合圧力測定を使用する光干渉断層撮影システム。 - 前記光干渉断層撮影システムは、
前記波長掃引レーザー及び前記干渉計と光通信可能に接続されたパワースプリッターと、
前記パワースプリッターと光通信可能に接続されたものであって、トリガー信号を出力するトリガー発生器と、
前記パワースプリッターと光通信可能に接続されたものであって、サンプルクロック信号を出力するサンプルクロック発生器と、
をさらに含み、
前記トリガー発生器の前記トリガー信号および前記サンプルクロック発生器の前記サンプルクロック信号は、前記アナログ・デジタル変換器に入力され、
前記アナログ・デジタル変換器は、前記トリガー発生器からのトリガー信号および前記サンプルクロック発生器からのサンプルクロック信号に対応して、前記第一の光検出器からの信号を変換する、
請求項1に記載の光干渉断層撮影システム。 - 前記干渉計と前記基準反射体との間に光スイッチを設けた、
請求項2に記載の光干渉断層撮影システム。 - 前記プローブがOCTイメージング光学系をさらに含む、
請求項1に記載の光干渉断層撮影システム。 - 第二の光源と、
光入力を受けて電気信号を出力する分光器と、
前記分光器に光出力を行う光サーキュレータと、
前記干渉計、前記プローブインターフェース、及び前記光サーキュレータに光通信可能に接続された波長分割多重化装置と、をさらに含み、
前記分光器から出力された電気信号を前記処理システムに入力可能である、
請求項2に記載の光干渉断層撮影システム。 - 前記光干渉断層撮影システムは、
光入力を受けて電気信号を出力する第二の光検出器と、
前記パワースプリッター及び前記プローブインターフェースに光通信可能に接続され、
前記第二の光検出器の前記光入力を入力可能な、
サーキュレータであって、
前記第二の光検出器から出力された前記電気信号は、前記アナログ・デジタル変換器に入力可能である、サーキュレータと、
をさらに含む、
請求項2に記載の光干渉断層撮影システム。 - 前記サーキュレータは多モードサーキュレータであるとともに、当該サーキュレータと前記プローブインターフェースとを多モード光ファイバーを介して光通信可能に接続し、
前記光干渉断層撮影システムは、
前記パワースプリッターと前記多モードサーキュレータとの間に光学的に接続されている単一モードから多モードへの変換器をさらに含む、
請求項6に記載の光干渉断層撮影システム。 - 穴を画定する壁を有する本体と、
前記穴の中に位置し、第一端と第二端を有する第一光ファイバー部分と、
前記穴の中に位置し、縦軸を有し、傾斜端と光圧力変換器側端とを有する第二光ファイバー部分と、
前記穴の中に位置し、前記第一光ファイバー部分及び前記光圧力変換器側端と光通信を行う光圧力変換器と、
前記傾斜端に配置され、光を受けて当該受けた光の第一部分を前記光圧力変換器に伝達するように構成されたコーティングであって、前記第一光ファイバー部分が前記傾斜端から光干渉断層撮影のための第一光信号を受けるように配置された、コーティングと、を含み、
前記本体はさらに、前記穴から周囲への開口部の少なくとも1つを画定し、当該開口部によって前記周囲からの圧力が前記光圧力変換器に伝達される、
光干渉断層撮影システム用プローブ。 - 穴を画定し、第一端および第二端を有する本体と、
前記穴の中に位置し、第一端と第二端を有する光ファイバーと、
前記穴の中に位置し、前記光ファイバーの前記第一端と光通信を行う光圧力変換器と、
前記本体の前記第二端に位置し、前記光ファイバーの前記第二端と光通信を行う光ファイバーコネクタと、を含み、
前記本体はさらに、前記穴から周囲への開口部の少なくとも1つを画定し、当該開口部によって前記周囲からの圧力が前記光圧力変換器に伝達され、
前記本体の前記第一端に位置するスプリングチップをさらに含む、
光干渉断層撮影システム用プローブ。 - 穴を画定し、第一端および第二端を有する本体と、
前記穴の中に位置し、第一端と第二端を有する光ファイバーと、
前記穴の中に位置し、前記光ファイバーの前記第一端と光通信を行う光圧力変換器と、
前記本体の前記第二端に位置し、前記光ファイバーの前記第二端と光通信を行う光ファイバーコネクタと、を含み、
前記本体はさらに、前記穴から周囲への開口部の少なくとも1つを画定し、当該開口部によって前記周囲からの圧力が前記光圧力変換器に伝達され、
取り外し可能なように前記本体に取り付けられた、取り外し可能なトルクハンドルをさらに含む、
光干渉断層撮影システム用プローブ。 - 穴を画定し、第一端および第二端を有する本体と、
前記穴の中に位置し、第一端と第二端を有する光ファイバーと、
前記穴の中に位置し、前記光ファイバーの前記第一端と光通信を行う光圧力変換器と、
前記本体の前記第二端に位置し、前記光ファイバーの前記第二端と光通信を行う光ファイバーコネクタと、を含み、
前記本体はさらに、前記穴から周囲への開口部の少なくとも1つを画定し、当該開口部によって前記周囲からの圧力が前記光圧力変換器に伝達され、
前記光ファイバーの前記第二端が光ファイバーフェルールを含む、
光干渉断層撮影システム用プローブ。 - 前記光ファイバーコネクタは、穴を画定し、前記光ファイバーフェルールを受けるようにサイズ調整および構成された嵌合ユニットを含み、
前記光ファイバーコネクタは、前記本体を前記光ファイバーコネクタに取り外し可能なように取り付けるための固定クランプをさらに含む、
請求項11に記載のプローブ。 - 穴を画定し、第一端および第二端を有する本体と、
前記穴の中に位置し、第一端と第二端を有する光ファイバーと、
前記穴の中に位置し、前記光ファイバーの前記第一端と光通信を行う光圧力変換器と、
前記本体の前記第二端に位置し、前記光ファイバーの前記第二端と光通信を行う光ファイバーコネクタと、を含み、
前記本体はさらに、前記穴から周囲への開口部の少なくとも1つを画定し、当該開口部によって前記周囲からの圧力が前記光圧力変換器に伝達され、
前記本体はさらに、第一端と第二端を持つガイドを含み、前記ガイドは前記本体の前記第一端に位置して第二の穴を画定し、前記第二の穴はガイドワイヤーが前記ガイドの前記第一端の第一の開口部を通って前記ガイドに入るのを可能にし、前記第二の穴を通って前記ガイドの第二の開口部から出るようにサイズ調整及び成形されている、
光干渉断層撮影システム用プローブ。 - 前記光ファイバーおよび前記光圧力変換器が前記穴の中で移動できる、
請求項13に記載のプローブ。 - 前記光ファイバーが、前記光ファイバーコネクタに隣接した前記穴の中に位置する液体シールを通過する、
請求項14に記載のプローブ。 - 穴を画定する壁を有する本体と、
前記穴の中に位置し、縦軸を有し、第一端と第二端を有する光ファイバーと、
前記穴の中に位置し、前記壁を通して前記光ファイバーの前記第一端から受けた光の一部である第一の部分を前記縦軸に対して角度を持って反射するように位置する部分的反射体であり、前記光ファイバーの前記第一端は、前記本体を透過した散乱光を受けて当該散乱光を光干渉断層撮影システムに干渉撮影のために伝達する、部分的反射体と、
前記穴の中に位置し、前記部分的反射体を通して伝達された光であって、前記壁を通して前記光ファイバーの前記第一端から受けた光の他の一部である第二の部分を受けるように位置する光圧力変換器と、を含み、
前記本体はさらに、前記穴から周囲への開口部の少なくとも1つを画定し、当該開口部によって前記周囲からの圧力が前記光圧力変換器に伝達される、
光干渉断層撮影システム用の組み合わせプローブ。 - 光検出器及び光圧力変換器に接続された干渉計を含むOCTシステムの作動方法であって、
制御手段が、正規化サンプリング圧力信号を得るために、前記光検出器からサンプリングされたサンプリング信号を正規化するステップと、
制御手段が、クリーンな正規化サンプリング圧力信号を生成するために、空洞ノイズを除去するステップと、
制御手段が、前記クリーンな正規化サンプリング圧力信号の最小値を見つけるステップと、
制御手段が、前記クリーンな正規化サンプリング圧力信号の前記最小値を追跡するステップと、
を含む、OCTシステムの作動方法。 - 前記最小値がコンボリューション、微分法および勾配探索のうちの1つによって決定される、請求項17に記載のOCTシステムの作動方法。
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Application Number | Priority Date | Filing Date | Title |
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US12/689,724 US8478384B2 (en) | 2010-01-19 | 2010-01-19 | Intravascular optical coherence tomography system with pressure monitoring interface and accessories |
US12/689,724 | 2010-01-19 | ||
PCT/US2010/062330 WO2011090744A2 (en) | 2010-01-19 | 2010-12-29 | Intravascular optical coherence tomography system with pressure monitoring interface and accessories |
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JP2014115609A Division JP5860502B2 (ja) | 2010-01-19 | 2014-06-04 | 圧力モニターインターフェースおよび付属品付き血管内光干渉断層撮影システム |
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JP2014115609A Active JP5860502B2 (ja) | 2010-01-19 | 2014-06-04 | 圧力モニターインターフェースおよび付属品付き血管内光干渉断層撮影システム |
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EP (2) | EP3231355B1 (ja) |
JP (2) | JP5558580B2 (ja) |
AU (1) | AU2010343108B2 (ja) |
CA (2) | CA2765412C (ja) |
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