JP2017500172A - 安全なレーザ砕石術のためのエイミングビーム検出 - Google Patents
安全なレーザ砕石術のためのエイミングビーム検出 Download PDFInfo
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Abstract
Description
イメージングアセンブリであって、遠位端に近接した体腔部位のイメージをキャプチャおよび出力する、イメージングアセンブリと、
エネルギガイドであって、内視鏡の遠位端にある開口又は内視鏡の遠位端のエリアに、内視鏡を通して向かうことが可能な又は内視鏡を通して向わないことが可能な、エネルギガイドと、
エネルギ源であって、エネルギパルスをエネルギガイドを通して出射するために結合された、エネルギ源と、
のうちの1つ又は2つ以上を備える。
1)アーチファクトおよび疑似要素(artifacts and spurious elements)を取り除くために、イメージは、予め処理される。アーチファクトおよび疑似要素は、取り除かれなければ検出プロセスの効率を低下させてしまうことがある。
2)イメージは複数領域に分割され、イメージの各領域は、結石を含む候補である。これらの部位は、イメージ上でスライドウィンドウを移動することにより、またはイメージ分割方法により、規定可能である。
3)結石を含むエリアをバックグラウンドと区別するために、各イメージ領域は、特徴空間ベクトルに変換される。特徴空間は、色、テクスチャ、およびエッジ形状などの特性値を含むことが可能である。以前は、結石が落ちることがある特徴空間における1つのエリアまたは複数のエリアの境界を定めるために、オフライン解析が用いられた。
4)分類器は、特徴空間ベクトルを、結石エリアの境界と比較し、したがって、もしあれば、現在のイメージの領域のうちのどの領域が結石を含むかを決める。分類器は、各特徴値を許容可能な閾値と単に比較可能であり、またはより複雑な多変量および/または統計学的な比較を行うことも可能である。
24 内視鏡
30 イメージングアセンブリ
32 ワイヤ
34 ワーキングチャネル
36 エネルギガイド
38 ディスプレイ
40 コンソール
50 レーザ
52 照明源
54 光学素子
56 コントロールユニット
58 ビームコントローラ
60 イメージプロセッサ
Claims (16)
- 内視鏡であって、内視鏡が、体腔内へのインサート用に構成された遠位端を有し、かつ内視鏡が、その遠位端に近接した体腔部位のイメージをキャプチャおよび出力するように構成されたイメージングアセンブリを備える、内視鏡と、
エネルギガイドと、
エネルギガイドを通して、エネルギパルスを出射するように構成されたエネルギ源と、
コントロールユニットであって、体腔内の標的塊を識別するためにかつエネルギガイドを通して送られたエイミングビームが標的塊上に入射したことを確認するためにイメージを処理するように構成されており、かつ前記確認に応答してエネルギ源を作動させて標的塊にエネルギガイドを介してエネルギパルスを送るように構成されたコントロールユニットと、
を備える医療用装置。 - 照明源を備え、前記照明源が、前記エネルギガイドを通してエイミングビームを送るように構成された請求項1に記載の医療用装置。
- 前記エネルギガイドが、前記内視鏡を通して遠位端にある開口を通る請求項1に記載の医療用装置。
- 前記内視鏡は、前記内視鏡を通して遠位端にある開口を通るワーキングチャネルを備えており、かつ前記エネルギガイドが前記ワーキングチャネルを通してのインサート用に構成された請求項3に記載の医療用装置。
- 前記エネルギガイドが、前記内視鏡の遠位端にある開口を通して突出するように構成されており、その結果、前記エネルギガイドの遠位端が、標的塊に近接した状態にある請求項4に記載の医療用装置。
- 前記内視鏡が患者の尿路を通してのインサート用に構成されており、前記標的塊が結石であり、かつ前記エネルギ源により出射されたパルスが結石により吸収されかつそれにより結石の破砕を含むように構成された請求項4に記載の医療用装置。
- 前記エネルギガイドが光ファイバを備えており、かつ前記エネルギ源がレーザを備える請求項1に記載の医療用装置。
- 前記エイミングビームがイメージ中に現れずに標的塊に入射されるとき、前記コントロールユニットが前記エネルギ源の作動を禁止するように構成された請求項1から7のいずれか一項に記載の医療用装置。
- 時間コントロールユニットが、前記標的塊へのエネルギパルスの出射の後の所定の時間間隔の間、前記エネルギ源の作動禁止を遅延するように構成された請求項8に記載の医療用装置。
- 内視鏡を提供するステップであって、前記内視鏡が、体腔内へのインサート用に構成された遠位端と、体腔内への挿入用に構成されたエネルギガイドと、を備える、内視鏡を提供するステップと、
エイミングビームを、前記エネルギガイドを通して、体腔内へと送るステップと、
前記遠位端に近接した体腔部位のイメージをキャプチャするステップと、
体腔内の標的塊を識別するためにかつエイミングビームが標的塊に入射したことを確認するために、イメージプロセッサを用いて前記イメージを処理するステップと、
前記確認に応答して、エネルギ源を作動させて前記標的塊に前記エネルギガイドを介してエネルギパルスを送るステップと、
を備える内視鏡手術を行うための方法。 - 前記内視鏡が、前記内視鏡を通して遠位端にある開口を通るワーキングチャネルを備えており、かつ前記エネルギガイドを提供するステップが、前記エネルギガイドを前記ワーキングチャネルを通してインサートするステップを備える請求項10に記載の内視鏡手術を行うための方法。
- 前記エネルギガイドをインサートするステップが、前記内視鏡の遠位端にある開口を通して突出させるために、その結果、前記エネルギガイドの遠位先端が標的塊に近接した状態にあるようにするために、前記ワーキングチャネルを通して、前記エネルギガイドを進めるステップを備える請求項11に記載の内視鏡手術を行うための方法。
- 前記エネルギガイドが光ファイバを備えており、かつ前記エネルギ源がレーザを備える請求項11に記載の内視鏡手術を行うための方法。
- 前記内視鏡を提供するステップが、患者の尿路を通して前記内視鏡をインサートするステップを備え、前記標的塊が結石であり、かつ前記エネルギ源を作動させるステップが、パルスが結石により吸収されかつそれにより結石の破砕を含むように、前記レーザからパルスを出射するステップを備える請求項13に記載の内視鏡手術を行うための方法。
- 前記エイミングビームがイメージ中に現れずに前記標的塊に入射されるとき、前記エネルギ源の作動を禁止するステップを備える請求項10から14のいずれか一項に記載の内視鏡手術を行うための方法。
- 前記作動を禁止するステップが、前記標的塊にエネルギパルスを出射した後の所定の時間間隔の間、前記エネルギ源の作動禁止を遅延するステップを含む請求項15に記載の内視鏡手術を行うための方法。
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EP (1) | EP3073893B1 (ja) |
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US9282985B2 (en) | 2016-03-15 |
EP3073893B1 (en) | 2017-11-29 |
CN105682535B (zh) | 2017-10-13 |
US20150133728A1 (en) | 2015-05-14 |
US20160135894A1 (en) | 2016-05-19 |
WO2015069387A1 (en) | 2015-05-14 |
JP6518678B2 (ja) | 2019-05-22 |
EP3073893A1 (en) | 2016-10-05 |
CN105682535A (zh) | 2016-06-15 |
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