JP2018531051A - 網膜光線療法のためのシステムとプロセス - Google Patents
網膜光線療法のためのシステムとプロセス Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F9/00821—Methods or devices for eye surgery using laser for coagulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
- A61F2009/00863—Retina
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Abstract
Description
Claims (31)
- 網膜光線療法あるいは光刺激を行うプロセスであって、
網膜や中心窩組織を破壊することなく、または永久的に傷つけることなく、レーザー光に晒された網膜および/または中心窩組織に対する治療効果をもたらすレーザー光を生成するステップと、
レーザー光を網膜および/または中心窩の第1の処置領域に適用するステップと、
あらかじめ決められた時間の後、単一の処置セッション内で、レーザー光を網膜および/または中心窩の第1の処置領域に再適用するステップと、
第1の処置領域へレーザー光を適用している時間に、第1の処置領域から間隔をおいて配置された網膜および/または中心窩の第2の処置領域にレーザー光を適用するステップを含む、プロセス。 - 同じ処置セッション中に、処置される各領域へのあらかじめ決められた回数のレーザー光の適用が達成されるまで、レーザー光を、処置される領域の各々に繰り返し適用するステップを含む、請求項1に記載のプロセス。
- 処置領域への直前のレーザー光の適用からあらかじめ決められた時間内に、処置領域にレーザー光を再適用するステップを含む、請求項2に記載のプロセス。
- レーザー光は、以前に処置された領域に順に再適用される、請求項2に記載のプロセス。
- 処置領域へレーザー光による処置を適用している時間に、レーザー光は、網膜および/または中心窩の他の処置領域に適用される、請求項2に記載のプロセス。
- レーザー光は中心窩の少なくとも一部に適用される、請求項2に記載のプロセス。
- レーザー光は網膜と中心窩の全体に適用される、請求項6に記載のプロセス。
- 処置領域へレーザー光を適用している時間は1秒未満である、請求項3に記載のプロセス。
- 処置領域へレーザー光を適用している時間は1ミリ秒〜3ミリ秒の間である、請求項8に記載のプロセス。
- 各処置領域へのレーザー光の適用のあらかじめ決められた回数は、50〜200である、請求項2に記載のプロセス。
- 各処置領域は、75〜150回のレーザー光の適用で処置される、請求項2に記載のプロセス。
- レーザー光の適用は、レーザー光の単一のマイクロパルスを含む、請求項1に記載のプロセス。
- レーザー光は1ミリ秒未満の持続時間のパルスである、請求項12に記載のプロセス。
- レーザー光パルスは50マイクロ秒から100マイクロ秒の持続時間である、請求項13に記載のプロセス。
- レーザー光の波長は532nmよりも大きい、請求項1に記載のプロセス。
- レーザー光の波長は750nm−1300nmである、請求項15に記載のプロセス。
- レーザー光はマイクロパルスであり、10%未満のデューティサイクルを有する、請求項1に記載のプロセス。
- マイクロパルスレーザー光は5%以下のデューティサイクルを有する、請求項17に記載のプロセス。
- 生成するステップは、複数の距離を置いて配置された処置用のレーザー光スポットを同時に生成するステップを含む、請求項1に記載のプロセス。
- 網膜の処置領域を作るためにレーザー光スポットを制御可能に移動させるステップを含む、請求項19に記載のプロセス。
- 隣接する領域は、熱の組織損傷を回避するために、少なくともあらかじめ決められた最小の距離だけ離れている、請求項1に記載のプロセス。
- 正確な閾値以下の光線療法は処置領域で達成される、請求項2に記載のプロセス。
- 網膜光線療法あるいは光刺激を行うためのシステムであって、
前記システムは、
マイクロパルスレーザー光線を生成するレーザーコンソールと、
レーザー光線を光学的に形成するために、レーザー光線が通過する光学レンズまたはマスクと、
網膜光線療法あるいは光刺激を行うための所望の部位の領域へレーザー光線を投影する同軸の広視野非接触型のデジタル光視認カメラと、
網膜光線療法あるいは光刺激を行うための所望の部位の少なくとも1つの他の領域に、マイクロパルス間隔中のレーザー光線を制御可能に移動させ、その後、あらかじめ処置された領域にレーザー光線を再適用するために同じ処置セッションの間のあらかじめ決められた時間内に、あらかじめ処置された領域にレーザー光線を戻す機構とを備える、システム。 - レーザー光線は、網膜光線療法あるいは光刺激を行うための所望の部位の完全な適用範囲を達成するために、制御可能に移動する、請求項23に記載のシステム。
- レーザー光線は、網膜光線療法あるいは光刺激を行うための所望の部位上の疾患マーカーに選択的に適用される、請求項23に記載のシステム。
- レーザー光線は、網膜光線療法あるいは光刺激を行うための所望の部位の中心の少なくとも一部に投影される、請求項23に記載のシステム。
- 光学レンズまたはマスクは、レーザー光線から複数のスポットを生成するために、回折光学素子を含み、複数のスポットは、同軸の広視野の非接触型デジタル光視認カメラから、網膜光線療法あるいは光刺激を行うための所望の部位の少なくとも一部まで投影される、請求項23に記載のシステム。
- 網膜診断モダリティからの結果画像に平行にあるいは重ねて表示される、網膜光線療法あるいは光刺激を行うための所望の部位の眼底画像をさらに含む、請求項23に記載のシステム。
- レーザー光線は、以前に処置された領域へのレーザー光線の前回の照射から1秒未満以内にその領域に制御可能に戻される、請求項23に記載のシステム。
- レーザー光線は、1ミリ秒から3ミリ秒以内に、以前に処置された領域に戻される、請求項29に記載のシステム。
- レーザーコンソールは、複数のマイクロパルス光線、異なる波長を有する少なくとも複数の光線を生成する、請求項23に記載のシステム。
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