JP2021531837A - 電気手術器具 - Google Patents
電気手術器具 Download PDFInfo
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Abstract
Description
可撓軸112は、内視鏡114の器具チャネルを通って、内視鏡管の遠位端で(例えば、患者の内部に)突出するように形成された、遠位アセンブリ118(図1で縮尺どおりには示されていない)を有する。遠位端アセンブリは、マイクロ波エネルギー及び高周波数エネルギーを生体組織内に送達させるための作動先端部を含む。先端部の構成については、以下で詳しく説明する。
Claims (23)
- 電気手術器具であって、
マイクロ波エネルギー及び/または高周波エネルギーを伝達するための同軸給電ケーブルであって、前記同軸給電ケーブルが、内部導体、外部導体、及び前記内部導体と前記外部導体を分離する誘電材料を有する、前記同軸給電ケーブルと、
前記マイクロ波エネルギー及び/または前記高周波エネルギーを受信するために前記同軸給電ケーブルの遠位端に配置された放射先端部であって、前記放射先端部が、
前記放射先端部の外側表面からの前記同軸給電ケーブルから受信した前記マイクロ波エネルギー及び/または前記高周波エネルギーを送達するように構成される、エネルギー送達構造であって、前記エネルギー送達構造が、前記内部導体に電気接続され、前記同軸給電ケーブルの前記遠位端を越えて長手方向に延在する細長い導体を含む、前記エネルギー送達構造と、
前記細長い導体の周りに配置される誘電体であって、
前記誘電体がその中に空洞を含み、前記空洞が、前記放射先端部の屈曲を容易にするために前記細長い導体に隣接して配置される、前記誘電体と、
を含む、前記放射先端部と、
を備える、前記電気手術器具。 - 前記空洞が、前記細長い導体の周りに配置される、請求項1に記載の電気手術器具。
- 前記空洞が、前記誘電体に長手方向に延在する管腔を含む、請求項1または2に記載の電気手術器具。
- 前記誘電体が、前記細長い導体を取り囲む内側スリーブを含み、前記管腔が、前記内側スリーブの半径方向の厚さだけ前記細長い導体から離間している、請求項3に記載の電気手術器具。
- 前記管腔が、環状の断面を有する、請求項3または4に記載の電気手術器具。
- 前記管腔が、前記誘電体の外側表面に配置された長手方向に延在する溝を形成する、請求項3に記載の電気手術器具。
- 前記管腔が、前記誘電体内の凹みによって形成される、請求項1または2に記載の電気手術器具。
- 前記凹みが、前記誘電体の周りに延在する周溝を形成する、請求項7に記載の電気手術器具。
- 前記誘電体が波形表面を含み、前記凹みが前記波形表面の波形によって形成される、請求項7または8に記載の電気手術器具。
- 前記放射先端部が、前記誘電体の外側表面の周りに配置された外側シースを更に含み、前記外側シースが、前記外側シースと前記誘電体の間の相対移動を可能にするために前記誘電体から分離している、先行請求項のいずれかに記載の電気手術器具。
- 電気手術器具であって、
マイクロ波エネルギー及び/または高周波エネルギーを伝達するための同軸給電ケーブルであって、前記同軸給電ケーブルが、内部導体、外部導体、及び前記内部導体と前記外部導体を分離する誘電材料を有する、前記同軸給電ケーブルと、
前記マイクロ波エネルギー及び/または前記高周波エネルギーを受信するために前記同軸給電ケーブルの遠位端に配置された放射先端部であって、前記放射先端部が、
前記放射先端部の外側表面からの前記同軸給電ケーブルから受信した前記マイクロ波エネルギー及び/または前記高周波エネルギーを送達するように構成される、エネルギー送達構造であって、前記エネルギー送達構造が、前記内部導体に電気接続され、前記同軸給電ケーブルの前記遠位端を越えて長手方向に延在する細長い導体を含む、前記エネルギー送達構造と、
前記細長い導体の周りに配置される誘電体と、
前記誘電体の外側表面の周りに配置された外側シースであって、前記外側シースが前記誘電体から分離して、前記外側シースと前記誘電体の間の相対運動を可能にする、前記外側シースと、を含む、前記放射先端部と、
を備える、前記電気手術器具。 - 前記誘電体が第1の誘電材料で形成されており、前記外側シースが前記第1の誘電材料とは異なる第2の誘電材料から形成されている、請求項10または11に記載の電気手術器具。
- 前記第1の誘電材料が、前記第2の誘電材料よりも高い溶融温度を有する、請求項12に記載の電気手術器具。
- 前記第1の誘電材料が、ポリテトラフルオロエチレンであり、前記第2の誘電材料が、フッ化エチレンプロピレンである、請求項13に記載の電気手術器具。
- 前記外側シースが、前記誘電体の遠位端を覆うように配置されている遠位先端部を含む、請求項10〜14のいずれか一項に記載の電気手術器具。
- 前記外側シースが、前記誘電体の前記外側表面の周りに封止を形成するように構成されている、請求項10〜15のいずれか一項に記載の電気手術器具。
- 前記誘電体が、前記細長い導体がそれを通って延在する、螺旋体を含む、請求項11〜16のいずれか一項に記載の電気手術器具。
- 電気手術器具であって、
マイクロ波エネルギー及び/または高周波エネルギーを伝達するための同軸給電ケーブルであって、前記同軸給電ケーブルが、内部導体、外部導体、及び前記内部導体と前記外部導体を分離する誘電材料を有する、前記同軸給電ケーブルと、
前記マイクロ波エネルギー及び/または前記高周波エネルギーを受信するために前記同軸給電ケーブルの遠位端に配置された放射先端部であって、前記放射先端部が、
前記放射先端部の外側表面からの前記同軸給電ケーブルから受信した前記マイクロ波エネルギー及び/または前記高周波エネルギーを送達するように構成される、エネルギー送達構造であって、前記エネルギー送達構造が、前記内部導体に電気接続され、前記同軸給電ケーブルの前記遠位端を越えて長手方向に延在する細長い導体を含む、前記エネルギー送達構造と、
前記細長い導体の周りに配置される誘電体であって、
前記誘電体が、前記細長い導体がそれを通って延在する螺旋体を含む、前記誘電体と、を含む、前記放射先端部と、
を備える、前記電気手術器具。 - 前記エネルギー送達構造が、近位調整要素及び遠位調整要素を含み、これらのそれぞれが、前記細長い導体に電気接続され、前記近位調整要素及び前記遠位調整要素が前記細長い導体の長さだけ長手方向に離間し、
前記誘電体が、前記近位調整要素と前記遠位調整要素との間に配置された第1の誘電スペーサを含む、先行請求項のいずれかに記載の電気手術器具。 - 前記エネルギー送達構造が、前記誘電体の表面上に配置された遠位電極及び近位電極を備え、前記遠位電極及び前記近位電極が、前記誘電体の中間部分によって互いから物理的に分離されており、
前記近位電極が、前記外部導体に電気接続され、
前記遠位電極が、前記細長い導体を介して前記内部導体に電気接続される、請求項1〜18のいずれか一項に記載の電気手術器具。 - 前記誘電体の前記中間部分に取り付けられている、調整要素を更に含む、請求項20に記載の電気手術器具。
- 生体組織を治療するための電気手術装置であって、前記電気手術装置が、
マイクロ波エネルギー及び/または高周波エネルギーを供給するように配置された電気手術用ジェネレータと、
前記電気手術用ジェネレータからの前記マイクロ波エネルギー及び/または前記高周波エネルギーを受信するように接続された先行請求項のいずれかに記載の電気手術器具と、を備える、前記電気手術装置。 - 器具チャネルを有する可撓性挿入コードを含む、外科用スコープデバイスを更に含み、前記電気手術器具が前記器具チャネル内に適合するように寸法決めされている、請求項22に記載の電気手術装置。
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