JP6054986B2 - 白内障手術の術中光学コヒーレンス断層画像化 - Google Patents
白内障手術の術中光学コヒーレンス断層画像化 Download PDFInfo
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Description
本出願は、35U.S.C.§119下における米国特許出願シリアル番号第13/329,529号(出願日:2011年12月19日)に対する優先権を主張する。同文献の内容全体を参考のため援用する。
Lmax=1、…6R (4)
Claims (19)
- 白内障手術システムであって、
第1の1組のレーザパルスを生成するように構成されたレーザ源と、
前記レーザ源へ接続された誘導光学素子であって、前記第1の1組のレーザパルスを眼内の白内障標的領域へ誘導するように構成された誘導光学素子と、
レーザコントローラであって、
標的走査パターンの電子表示を生成することと、
前記誘導光学素子を制御して、前記第1の1組のレーザパルスを前記標的走査パターンの一部に従って走査して、前記白内障標的領域内に第1の光破壊領域を生成することと、
を行うように構成されたレーザコントローラと、
スペクトル領域光学コヒーレンス断層(SD−OCT)画像化システムであって、0.5〜5百万画素/1画像の画像分解能と、20〜200フレーム/秒の範囲内のフレームレートとで、前記第1の光破壊領域の一部を含む画像を生成するように構成される、スペクトル領域光学コヒーレンス断層(SD−OCT)画像化システムと
を含み、
前記レーザコントローラは、
前記SD−OCT画像化システムによって生成された画像に関連して変更された走査パターンの電子表示を生成することと、
前記誘導光学素子を制御して、第2の1組のレーザパルスを前記変更された走査パターンに従って走査して、第2の光破壊領域を生成することと
を行うように構成される、
白内障手術システム。 - 前記白内障標的領域は、前嚢層を含み、
前記標的走査パターンは、円形嚢切開、前嚢切開および曲線嚢切開のうち少なくとも1つを形成するための円筒上の1組の標的点を含む、
請求項1に記載の白内障手術システム。 - 前記白内障標的領域は、前記水晶体の一部を含み、
前記標的走査パターンは、前記水晶体のチョップ、光破壊および溶解のうち少なくとも1つを発生させるために、ラジアルチョップ面、円筒、螺旋パターンおよびメッシュパターンのうち少なくとも1つの上に1組の標的点を含む、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、4mmを超えるz画像化範囲を持つように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、6mmを超えるz画像化範囲を持つように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、2つ以上の画像を4mm未満の画像化範囲と一体化することにより、前記第1の光破壊領域の部分の画像を生成しない、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、前記画像を1秒未満の画像化時間で生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、前記画像を0.1秒未満の画像化時間で生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、反復される画像を25〜500フレーム/秒の範囲内のフレームレートで生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、反復される画像を500〜2,000A走査/B走査の範囲内の(x、y)分解能で生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、反復される画像を2,000〜5,000A走査/B走査の範囲内の(x、y)分解能で生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、反復される画像を0.5〜2百万画像点/画像の範囲内の画像分解能で生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、反復される画像を2〜5百万画像点/画像の範囲内の画像分解能で生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、少なくとも1000のz深さからの画像点を含むA走査からB走査を生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、反復される画像を1〜10フレーム/秒の範囲内のリフレッシュレートおよび2〜5百万画像点の範囲内の高画像分解能で生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記レーザコントローラは、前記システムオペレータが前記第1の光破壊領域の部分の画像を分析したのに応じて、前記システムオペレータから受信された変更入力に従って前記変更された標的走査パターンの電子表示を生成するように構成される、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、前記第1の光破壊領域の前記標的走査パターンに相対する位置の前記システムオペレータによる較正を支援するための較正マークを表示するように構成される、
請求項1に記載の白内障手術レーザシステム。 - 前記SD−OCT画像化システムは、スペクトロメータベースのOCT画像化システムを含み、
広帯域ビームを生成する広帯域光源と、
ビーム誘導システムであって、
前記広帯域ビームを分割して画像ビームおよび基準ビームとすることと、
前記画像ビームを前記眼へ誘導し、前記眼からの返送画像ビームを誘導することと、
前記基準ビームを基準ミラーへ誘導し、前記基準ミラーからの返送基準ビームを誘導することと、
前記返送画像ビームおよび前記返送基準ビームを結合して、結合ビームを得ることと
を行う、ビーム誘導システムと、
前記結合ビームを受信するように構成されたOCTカメラであって、
前記結合ビームを分解してスペクトル成分を得るスペクトル分解装置、
前記スペクトル成分を感知するセンサーアレイ、
前記感知されたスペクトル成分からフーリエ変換を生成する高速フーリエ変換器システム、および
前記フーリエ変換されたスペクトル成分から画像を生成する画像生成器
を含む、OCTカメラと、
を含む、
請求項1に記載の白内障手術システム。 - 前記SD−OCT画像化システムは、
標的走査パターン制御信号を出力するように構成された専用入力/出力ボードを含み、
前記専用入力/出力ボードは、
専用メモリコントローラ、
データバッファ、および
出力デジタル/アナログ変換器、
を含み、
前記SD−OCT画像化システムによる画像化は、前記出力デジタル/アナログ変換器による前記標的走査パターン制御信号の出力と同期される、
請求項18に記載の白内障手術システム。
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