JP4303116B2 - 眼科マイクロサージャリー装置 - Google Patents
眼科マイクロサージャリー装置 Download PDFInfo
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- JP4303116B2 JP4303116B2 JP2003546795A JP2003546795A JP4303116B2 JP 4303116 B2 JP4303116 B2 JP 4303116B2 JP 2003546795 A JP2003546795 A JP 2003546795A JP 2003546795 A JP2003546795 A JP 2003546795A JP 4303116 B2 JP4303116 B2 JP 4303116B2
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Images
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- 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
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- 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
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- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
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- 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
- A61F9/013—Instruments for compensation of ocular refraction ; Instruments for use in cornea removal, for reshaping or performing incisions in the cornea
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Description
アイバンクから入手した生体外のヒトの眼球に実験を施すためにマイクロカニューレ装置を作製した。このマイクロカニューレは30ゲージの誘導管(フロリダ州マイアミレイクのスモールパーツ社(Small Parts, Inc.)製)であり、この誘導管の内孔には、ポリイミド管で構成された末端部が接着されている。誘導管は、垂直(まっすぐ)に切断された遠位端と、メスルアーを備えた近位端とを有する、長さ1/2”(12.5mm)に切断された標準的な皮下注射針である。誘導管は内径150μm、外径300μmである。内径110μm、肉厚14μmの、ある長さのポリイミド管材料(フロリダ州タンパのマイクロルーメン社(MicroLumen)製)を、シアノアクリレート接着剤を用いて誘導管の末端内部に接着し、翌朝まで硬化させた。ポリイミド管が誘導管から1.0cm突出している組立体、および1.5cm突出している組立体を作製した。直径100μm、長さ2cmのステンレス鋼ワイヤ(インジアナ州フォートウェインのフォートウェインメタルズ社製)をルアーキャップに取り付け、マイクロカニューレのルアーコネクタに装着した。ワイヤ先端を手作業で研削して、鋤状または尖形円錐状の先端を形成した。シュレム管の湾曲に通りやすくするために、いくつかの組立体では、ステンレス鋼ワイヤを手で曲げて半径約14mmの曲線を形成した。
別の実施例において、線維柱帯網に調節穿刺を行うための手術用ツールを、直径0.004”(100μm)のニチノール(ニッケルチタン合金を)ワイヤ(インジアナ州フォートウェインのフォートウェインメタルズ社製)を使用して作製した。ワイヤを、遠位端から3cmに直径10mmの湾曲を備える形にした。さらに、先端の遠位端から2mmの位置に、内側に向けられ曲線の平面内の残っているワイヤの軸線からほぼ90°の角度で小半径の曲げ部を形成した。
別の実施例において、マイクロカニューレ末端の位置を確認するための信号伝達手段を作製した。電池式の小型レーザーダイオード光源照明器を、このダイオードが可視赤色光線範囲で作動する状態で作製した。直径約100μm、長さ20cmのプラスチック光ファイバー(POF)(フロリダ州アチュアのサウスコーストファイバーオプティクス社(South Coast Fiber Optics)製)1本を、ファイバー先端をレーザー照明器の焦点に導く調節可能なアライメント機能を提供するアダプタに取り付けた。POF末端を平坦に切断したので、照光は末端から放射状に全角度に向けられた。マイクロカニューレを保持するための円筒形のハンドピースマウントを作製した。また、ナイロンから内径約120μm、外径約180μmの寸法のマイクロカニューレを作製した。マイクロカニューレの作用端部は長さ15mmとし、ハンドピースに取り付けられるように近位端は裾広がりとした。実施例1に詳述されているように、ハンドピースを通してマイクロカニューレ内にファイバーを配し、ファイバーアダプタをレーザー照明器に取り付けた。POFの端部が最も明るい箇所となるようにアダプタのアライメントを調節した。
別の実施例において、マイクロカニューレは、実施例1に記載されているようにシュレム管に到達するために使用される。マイクロカニューレの先端をシュレム管に沿って所望の治療位置に配置する。外部シースマイクロカニューレを所定の位置に保持しながら内部部材を取り出す。ステントタイプのインプラントを折り畳むかまたは圧縮して、マイクロカニューレの内孔に挿入する。ステントを、内部部材の遠位端に着脱可能に取り付け、内部部材の機械的作用によってマイクロカニューレの内孔に沿って押す。マイクロカニューレの端部から組織管の中に配備された時点でステントを拡張させ、内部部材から外す。別のインプラントを輸送するためにマイクロカニューレをシュレム管に沿って別の位置に希望通りに移動させる。
2 近位コネクタ
3 マイクロカニューレ先端
4 内部部材
5 近位端
6 遠位端
7 湾曲
8 先細部
9 スパチュラ形
12 ブレード
13 固体素子
14 シャフト
15 スプライン
16 手術用ツール
18 ビーコン
19 先端
20 手術用ツール
21 先端
22 バスケット
23 外科的切断用ツール
Claims (18)
- シュレム管の湾曲した組織管内部で作動させるように作られた、マイクロカニューレを用いるマイクロサージャリー装置において、
近位端と遠位端とを備え、外径250μm以下である、前記組織管に嵌入するための可撓性の管状の外部シースと、
近位端と遠位端とを備え、かつ前記外部シースの位置を案内する、光ファイバーまたは感知手段を有する第1の内部部材と、
近位端と遠位端とを備え、かつ該遠位端に外科的切断用ツールまたは切開するための手術用ツールを有する第2の内部部材と、
前記第1および第2の部材を導入するための、前記外部シース上の近位コネクタと、
を有し、
前記第1の内部部材の遠位端が前記外部シースから所定の距離を越えて進まないように制限されており、前記外部シースと前記第1の内部部材は、前記第1の内部部材が前記外部シースに摺動可能に嵌まり、前記組織管内で前記第1の内部部材を前記外部シースから取り外せるような大きさに形成されており、
前記第2の内部部材の遠位端が前記外部シースから所定の距離を越えて進まないように制限されており、前記第2の内部部材が、前記外部シースに摺動可能に嵌まり、かつ前記外部シースが前記組織管内にある間に前記第1の内部部材と交換可能なように、前記外部シースと前記第2の内部部材が形成されていることを特徴とするマイクロサージャリー装置。 - 前記マイクロサージャリー装置が前記組織管を鈍的切開することを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記可撓性の管状の外部シースがポリイミドまたはフルオロポリマーを有してなることを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記可撓性の管状の外部シースが直径10〜15mmの範囲内で湾曲させられていることを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記第1または第2の内部部材がニッケルチタン合金を有してなることを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記第1または第2の内部部材がタングステンを有してなることを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記第1の内部部材が直径10〜15mmの範囲内で湾曲させられていることを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記第2の内部部材が、組織切開に適した形状を備えた末端を有することを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記末端が多面体形状または円錐体形状を有することを特徴とする、請求項8に記載のマイクロサージャリー装置。
- 前記末端が、組織を穿通するために尖っていることを特徴とする、請求項8に記載のマイクロサージャリー装置。
- 前記末端が、コントロールされた外科的穿通を前記線維柱帯網に施せるように成形されていることを特徴とする、請求項8に記載のマイクロサージャリー装置。
- 前記末端が前進して、前記外部シースの軸線から45°から135°までの方向に前記線維柱帯網を穿通することを特徴とする、請求項11に記載のマイクロサージャリー装置。
- 前記外部シースが複数のマーカーをさらに有し、前記複数のマーカーは、各マーカーが前記外部シースに沿って隣接のマーカーと一定間隔をおいて配置されて深さを測定できるように、等間隔に設けられていることを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記第1の内部部材が信号伝達手段を有することを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記光ファイバーが、マイクロカニューレの近位端からの照明を、前記マイクロカニューレの軸線から45°から135°までの角度に方向付けることを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記光ファイバーが照明を、前記マイクロカニューレの軸線から45°から135°までの角度に向けられる内部部材の標的と一致するように方向付けることを特徴とする、請求項15に記載のマイクロサージャリー装置。
- 前記マイクロサージャリー装置が、前記第1の内部部材の動作によってインプラントを前記組織管に輸送する大きさに作られていることを特徴とする、請求項1に記載のマイクロサージャリー装置。
- 前記インプラントがステント状の管であることを特徴とする、請求項17に記載のマイクロサージャリー装置。
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PCT/US2002/037572 WO2003045290A1 (en) | 2001-11-21 | 2002-11-21 | Ophthalmic microsurgical system |
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EP (1) | EP1455698A1 (ja) |
JP (1) | JP4303116B2 (ja) |
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2002
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- 2002-11-21 WO PCT/US2002/037572 patent/WO2003045290A1/en active Application Filing
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- 2002-11-21 KR KR1020047007781A patent/KR100976186B1/ko not_active IP Right Cessation
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WO2003045290A1 (en) | 2003-06-05 |
KR100976186B1 (ko) | 2010-08-17 |
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JP2005521435A (ja) | 2005-07-21 |
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