JP7228282B2 - 電気手術装置及び方法 - Google Patents
電気手術装置及び方法 Download PDFInfo
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Description
1つ以上の粘膜下層の組織変質または変性させることを実行する)ためにも使用してよい。
達構造を有し、アプリケータは治療部位で生体組織に沿って回転可能な放射構造を備える。
または変形可能な支持体(例えば、カップ状または凹所のあるハウジング)を含んでよい。搬送構造は、例えば環状リングを使用して器具コード上に留められ得る。他の例で、搬送構造は器具コードに付着し得る、またはそれと一体に形成され得る。
ト106の遠位端から延在する単一の可撓軸112内に結合することである。
エネルギー(例えば赤外線)を送達するまたは生体組織の他の熱的効果を励起するように配置されるアプリケータと、に分けることができる。マイクロ波エネルギーを利用するアプリケータ構造に関する議論から開始し、それは図2~図14に記載されている。
度説明しない。スリーブ及び膨張チャネルは見やすさを考えて省略した。アプリケータ250は「溝付き」ラジエータとして構成される。複数の導電要素252はバルーンスキン210上に作成される。例えば導電要素252は、バルーンの外側の金属被覆領域または断片でもよい。導電要素252は、同軸ケーブル206の外部導体に電気的に接続し得る。導電要素252は、マイクロ波エネルギーの供給を制限するのに役立つ。図3に示す実施形態で、マイクロ波エネルギーは導電要素252の間の間隙(溝)から送達される。このように治療の所望のパターンは、導電要素252の形状及び位置を適切に構成することによって得ることができる。例えばバルーンの片側は、マイクロ波エネルギーからGI管側面を遮蔽するために金属被覆され得る。金属被覆した部分は、それが膨張する際バルーンと共に拡張することができる。例えば導電要素252は、金属被覆した可撓性ポリマー層から形成されてよい。
で同軸ケーブル206の内部導体212は、膨張性容積303を画定する拡張可能な内側表面304上の導電性被覆に接続している。内側表面303は、誘電体材料層302によって外側表面305から分離される。外側層305は、その上に形成される1つ以上の導電要素306を有し得る。これらの導電要素306は、放射状アンテナ(例えば放射状パッチなど)として作用するために特定の寸法にされ得る。
8Cに示す装置は、スリーブ202に対してハウジング332の長手方向の移動を生じさせることによってGI管生体組織の長手方向片を切除するのに好適であり得る。他の例では、例えば組織の周囲片の治療を可能にするために、放射回転盤の回転軸は異なることができる。
在するスリーブ202に摺動可能に載置されてよい、または単独で器具チャネルに載置されてよい。マイクロ波エネルギーを伝送する同軸ケーブル206は、カテーテルの長さに沿って延在する。同軸ケーブルの遠位端は可撓性誘電体材料シート384(例えば、Rogers Corporation製Rflex(登録商標))で終端する。長手方向溝385はカテーテル382の側面に形成される。溝がカテーテル382の外側に露出するように、可撓性誘電体シート384がそれを通して通過できるように、溝は特定の寸法にされる。可撓性誘電体シート384は、カテーテル382内で含まれるコイル状構成と、溝385を通過してカテーテル382の円周の一部または全体の周囲に位置する展開(または広げた)構成との間のカテーテル軸周囲を回転可能であり得る。
一連の導電性材料を有し、それは適切なワイヤまたは配線414によって同軸ケーブル206の内部導体に接続している。各細片410の前面に、一連の導電性パッチ412は形成される。導電性パッチ412は、上述のものと類似のやり方で放射素子として機能するように構成される。
2内に載置される摺動可能な制御ロッドの操作によってこの開孔を通ってハウジング内に引き入れられることができる。一例で制御ロッドは同軸ケーブル206であることができる。
い場合がある。実際にいくつかの構造のレイアップ構造、複雑さ及びそれに伴う大きさを考慮すると、その近位端から一般的なGI可撓性ビデオ内視鏡の器具チャネルを通ってそれらを供給することは可能でない場合がある。本明細書の開示は、このようなアプリケータ構造の導入及び制御の多くの代替手段を想到する。このような構造の例は図17~図20に関連して後述する。これらの着想が任意のGI経口法または経直腸法の適用可能性を見いだし得、そこで可撓性内視鏡及び視覚化が必要とされ、遠位アプリケータ構造は可撓性GI内視鏡の器具(または操作)チャネルによる導入を防ぐためであることを理解すべきである。
載置した壁である。ポケット618は、器具コード600周辺の全部またはその一部の周囲に延在し得る。ポケットの外側形状は、導入を補助するために滑らか及び整合であり得る。アプリケータ612はポケット616内に置かれて、近位接続のために操作チャネル604を通って後退するように入れられるプローブ606に接続した。アプリケータの操作及び回収は図17に関する上述のものと同じである。
きるスリーブを備え得る。あるいは可撓性イントロデューサーは、アプリケータに付随する供給ラインが取り付けられることできる可撓性ロッドまたは針を備え得る。可撓性イントロデューサーは操作可能であり得、例えばその長さに沿って延在する1つ以上の制御ワイヤを有し得る。イントロデューサーは、アプリケータとは別にまたはそれと一体化して形成され得る。
[1]Cherrington,et al.13th World Congress on Insulin Resistance,Diabetes & Cardiovascular Disease.Los Angeles,Calif.,USA,December 2015。
Claims (4)
- 患者の胃腸管の生体組織の表面を直すためのエネルギーを送達するための電気手術器具であって、前記電気手術器具が、
前記患者に対して外部に位置するジェネレーターから前記患者の胃腸管内に位置する治療部位にマイクロ波エネルギーを伝送するための可撓性の同軸ケーブルと、
前記可撓性の同軸ケーブルの遠位端に位置するアプリケータであって、前記アプリケータが、前記同軸ケーブルから前記マイクロ波エネルギーを受け取って、前記治療部位の生体組織内に受け取った前記マイクロ波エネルギーを送達するために接続されるエネルギー送達構造を有する、前記アプリケータと、を備え、
前記エネルギー送達構造が前記治療部位で前記生体組織に沿って回転可能な放射構造を備え、
前記アプリケータが前記同軸ケーブルを取り囲むプローブハウジングを備え、前記放射構造が前記プローブハウジングの遠位端に回転可能に載置され、
前記放射構造が前記プローブハウジング内で横方向に配向された回転軸を含む、電気手術器具。 - 前記放射構造が横方向に配向された回転軸を有する円筒形状である、請求項1に記載の電気手術器具。
- 前記放射構造が、
前記同軸ケーブルの内部導体に電気的に接続する内部導電性リングと、
前記放射構造の円周周辺で前記内部導電性リングを覆うために載置される誘電性の環状素子と、
前記環状素子の外側表面上に形成された複数の接地した導電性パッチと、を備える、請求項2に記載の電気手術器具。 - スリーブをさらに備え、前記プローブハウジングは、前記放射構造が、前記スリーブの外側に展開し、前記スリーブの内側に格納されることができるように、前記スリーブと摺動可能である、請求項1から3のいずれか1項に記載の電気手術器具。
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| JP2014511190A (ja) | 2011-01-11 | 2014-05-15 | クレオ・メディカル・リミテッド | デュアルの無線周波数およびマイクロ波電磁エネルギを有する電気手術器具 |
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