JP2018075404A - 目組織および人工水晶体の変更システム - Google Patents
目組織および人工水晶体の変更システム Download PDFInfo
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Abstract
【解決手段】光学ビームを患者の目20に投影または走査するシステム200は、制御電子回路210、光源220、減衰器230、ビーム拡大器240、集束レンズ250,260および反射手段270を含む。制御電子回路210は、コンピュータ、マイクロコントローラ等であってもよい。走査は、1またはそれ以上の可動光学素子(例えば、レンズ250,260、反射手段270)を使用して達成することができ、可動光学素子は、入出力デバイスを介して、制御電子回路210により制御されるものとすることができる。走査の別の手段を、光路内の電気光学偏光器(一軸または二軸)によって実現することもできる。
【選択図】図2A
Description
i)角膜内に切り込み(切開)を形成してその形状を変え、屈折力を変化させること、
ii)角膜組織の屈折率を変更して、その有効屈折力の変化を生じさせること、
iii)フレネルレンズまたはその他の類似物をIOL材料に刻み込むことにより、移植された合成IOLの屈折率を変更して、その有効屈折力の変化を生じさせること、
iv)i、iiおよびiiiの任意の組合せ、
によって、人間の目の全屈折力の変更のためにも使用することができる。
Claims (13)
- 眼科手術用のシステムであって、
眼内の対象にレーザ光を供給して、前記眼内の対象のうちの少なくとも1つを物理的に変更するように構成された光学系およびレーザ光源を有するレーザシステムであって、前記レーザ光が、所定のパルスエネルギーと、1ピコ秒と100ナノ秒の間のパルス幅と、約320ナノメートルと約430ナノメートルの間の波長とを有する複数のレーザパルスを含み、前記光学系が、前記レーザ光源に動作可能に結合され、前記レーザ光を焦点に集束し、当該焦点を前記眼内の対象内で走査するように構成されたレーザシステムを備え、
共焦点反射率測定法が、プラズマの形成に付随するキャビテーション事象の発生の監視に使用され、
キャビテーション事象が検出されると、キャビテーションを回避するためにその後のレーザパルスのパルスエネルギーを減少させることを特徴とする眼科手術用のシステム。 - 請求項1に記載のシステムにおいて、前記波長が320ナノメートルと400ナノメートルの間であることを特徴とするシステム。
- 請求項1乃至2のいずれか1項に記載のシステムにおいて、前記波長が約355ナノメートルであることを特徴とするシステム。
- 請求項1乃至3のいずれか1項に記載のシステムにおいて、前記パルス幅が約400ピコ秒であることを特徴とするシステム。
- 請求項1乃至4のいずれか1項に記載のシステムにおいて、前記パルスエネルギーが、0.01マイクロジュールと約500マイクロジュールの間であることを特徴とするシステム。
- 請求項1乃至5のいずれか1項に記載のシステムにおいて、前記パルスエネルギーが、約0.5マイクロジュールと約10マイクロジュールの間であることを特徴とするシステム。
- 請求項1乃至6のいずれか1項に記載のシステムにおいて、前記複数のレーザパルスが、約500ヘルツと約500キロヘルツの間の繰り返し率を有することを特徴とするシステム。
- 請求項1乃至7のいずれか1項に記載のシステムにおいて、前記焦点が、約0.5ミクロンと約10ミクロンの間の大きさを有することを特徴とするシステム。
- 請求項1乃至8のいずれか1項に記載のシステムにおいて、前記眼内の対象の少なくとも1つが、角膜、縁部、強膜、水晶体嚢、水晶体および合成人工水晶体インプラントからなる群から選択されることを特徴とするシステム。
- 請求項1に記載のシステムにおいて、前記治療パターンが、角膜減張切開術、輪部減張切開術、乱視矯正角膜切開術、嚢切開法、角膜弁、および角膜移植形状からなる群から選択される形態において、前記眼内の対象のうちの少なくとも1つに1またはそれ以上の切り込みを形成するように構成されていることを特徴とするシステム。
- 請求項1乃至9のいずれか1項に記載のシステムにおいて、変更される前記眼内の対象の屈折率が変更されることを特徴とするシステム。
- 請求項1乃至11のいずれか1項に記載のシステムにおいて、前記レーザ光の放射照度が、1平方センチメートルあたり約120ギガワットであることを特徴とするシステム。
- 請求項1乃至12のいずれか1項に記載のシステムにおいて、
前記レーザシステムに動作可能に接続された制御電子回路であって、前記眼内の対象の位置と形状を判定するように前記レーザシステムを作動させるとともに、前記眼内の対象のうちの少なくとも1つを物理的に変更する治療パターンを生成するように前記レーザシステムを作動させ、かつ前記眼内の対象のうちの少なくとも1つを物理的に変更すべく、前記治療パターンで前記焦点を走査するように前記レーザシステムを作動させるように構成された制御電子回路をさらに備えることを特徴とするシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US29335710P | 2010-01-08 | 2010-01-08 | |
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JP6266713B2 (ja) | 2018-01-24 |
JP6487024B2 (ja) | 2019-03-20 |
AU2018282406B2 (en) | 2020-03-12 |
US20180085253A1 (en) | 2018-03-29 |
JP5977390B2 (ja) | 2016-08-24 |
EP2774587A1 (en) | 2014-09-10 |
US20110172649A1 (en) | 2011-07-14 |
US10864114B2 (en) | 2020-12-15 |
JP2018075403A (ja) | 2018-05-17 |
AU2017203081B2 (en) | 2018-10-04 |
JP2013516294A (ja) | 2013-05-13 |
AU2015204287A1 (en) | 2015-09-03 |
AU2015204287B2 (en) | 2017-03-30 |
AU2017203081A1 (en) | 2017-06-22 |
AU2011203989A1 (en) | 2012-07-26 |
JP2016195823A (ja) | 2016-11-24 |
WO2011085274A1 (en) | 2011-07-14 |
CN102791228A (zh) | 2012-11-21 |
AU2018282406A1 (en) | 2019-01-17 |
JP6266712B2 (ja) | 2018-01-24 |
EP2521520A1 (en) | 2012-11-14 |
US9833358B2 (en) | 2017-12-05 |
US20180085252A1 (en) | 2018-03-29 |
CN102791228B (zh) | 2016-05-11 |
JP2015163193A (ja) | 2015-09-10 |
EP2521520B1 (en) | 2017-08-16 |
AU2011203989B2 (en) | 2015-06-11 |
JP2016195822A (ja) | 2016-11-24 |
JP5722345B2 (ja) | 2015-05-20 |
EP2774587B1 (en) | 2021-10-20 |
US11058583B2 (en) | 2021-07-13 |
JP6487023B2 (ja) | 2019-03-20 |
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