JP7045464B2 - 腫瘍アブレーションのための強化ニードルアレイと治療方法 - Google Patents
腫瘍アブレーションのための強化ニードルアレイと治療方法 Download PDFInfo
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Description
追加的に又は代替的に、シャフト電極は、カニューレの一部の周りを半径方向に延び、シースは、シャフト電極の半径方向の露出を制御するために移動可能であり得る。
追加的に又は代替的に、組織貫通細長電極の少なくとも1つは、当該組織貫通細長電極の一部の第1の側に誘電性コーティングを備え得る。
追加的に又は代替的に、シャフト電極は、円筒形であり、カニューレの全周に延び得る。
追加的に又は代替的に、複数の組織貫通細長電極は、第1の電気接続を有する少なくとも第1の組織貫通電極と、第2の電気接続を有する第2の組織貫通電極を含み得るものであり、第1及び第2の電気接続は別々に処理可能である。
第3の例示的で非限定的な例に対して追加的に又は代替的に、第1の波形を送るステップは、第2の波形を送った後に実行され得る。
第3の例示的で非限定的な例に対して追加的に又は代替的に、少なくとも第2の波形は、可逆的及び不可逆的エレクトロポレーションのそれぞれを誘発し得るものであり、本方法は、可逆的エレクトロポレーションによって影響された領域に細胞死を引き起こすように適合された流体を注入することを備える。
発明の概要は、本特許出願の主題の紹介を提供することを意図している。本発明の排他的又は網羅的な説明を提供することは意図されていない。発明の詳細な説明は、本特許出願に関するさらなる情報を提供するために含まれている。
-電極322と、電極326又は電極328のいずれかとの間。
-電極324と、電極326又は電極328のいずれかとの間。
-電気的に共通に保持された電極322/324と、同じく電気的に共通に保持された電極326/328との間。
この明細書では、「a」又は「an」という用語は、特許明細書で一般的であるように、「少なくとも1つ」又は「1つ以上」の他のインスタンス又は使用法とは関係なく、1つ以上を含むように使用される。さらに、以下の特許請求の範囲において、「第1」、「第2」、及び「第3」等の用語は、単にラベルとして使用され、それらの対象に数値要件を課すことを意図するものではない。
Claims (13)
- 組織破壊システムであって、
カニューレ(240)を備え、該カニューレ(240)は近位端と遠位端(244)とを有し、該カニューレ(240)の内部に複数の組織貫通細長電極(242)を収容し、前記組織貫通細長電極(242)は、当該カニューレ(240)の遠位端(244)を越えて延出可能であり、
インナシャフト(230)を備え、該インナシャフト(230)は、前記カニューレ(240)を囲繞するとともにシャフト電極(232)を担持し、該シャフト電極(232)は、前記カニューレ(240)の遠位端(244)から離間したスペースに配置され、該スペースの間隔は前記インナシャフト(230)の移動により調整可能であり、
前記組織貫通細長電極(242)の少なくとも1つに電気的に接続された少なくとも1つの電気コネクタと、前記シャフト電極(232)に電気的に接続された少なくとも1つの電気コネクタとを含む複数の電気コネクタを備え、
前記シャフト電極(232)に対して可動であり、前記シャフト電極(232)の患者組織への露出を制御するように適合されたシース(220)を備える、組織破壊システム。 - 前記シャフト電極(232)は長さを有し、前記シース(220)は、前記シャフト電極(232)の長さのどの程度が露出されるかを制御するために移動可能である、請求項1に記載の組織破壊システム。
- 前記シャフト電極(232)は、前記カニューレ(240)の一部の周りを半径方向に延び、前記シース(220)は、前記シャフト電極(232)の半径方向の露出を制御するために移動可能である、請求項1又は2に記載の組織破壊システム。
- 前記カニューレ(240)は、輸液ルーメンを含み、前記カニューレ(240)の遠位部分は、輸液のための1つ以上の小孔(274)を備える、請求項1から3のいずれか一項に記載の組織破壊システム。
- 前記小孔(274)と前記シャフト電極(272)とが前記カニューレ(240)の単一の軸方向領域内にある当該カニューレ(240)の対向側を占めるように、輸液用の前記1つ以上の小孔(274)が前記カニューレ(240)の第1の側に配置され、前記シャフト電極(272)が前記カニューレ(240)の第2の側に配置される、請求項4に記載の組織破壊システム。
- 前記組織貫通細長電極(280)の少なくとも1つは、当該組織貫通細長電極(280)を通る輸液ルーメンを備える、請求項1から5のいずれか一項に記載の組織破壊システム。
- 前記組織貫通細長電極(280)の少なくとも1つは、一部の第1の側に誘電性コーティングを備える、請求項1から6のいずれか一項に記載の組織破壊システム。
- 前記シャフト電極(232)は、円筒形であり、前記カニューレ(240)の全周に延びる、請求項1から7のいずれか一項に記載の組織破壊システム。
- 前記シャフト電極(272)は、前記カニューレ(240)の一部のみの周りに延びる、請求項1から7のいずれか一項に記載の組織破壊システム。
- 前記複数の組織貫通細長電極は、第1の電気接続を有する少なくとも第1の組織貫通電極(326)と、第2の電気接続を有する第2の組織貫通電極(328)を含み、第1及び第2の電気接続は別々に処理可能である、請求項1から9のいずれか一項に記載の組織破壊システム。
- 前記第1及び第2の組織貫通電極の選択された1つ以上と前記シャフト電極の一部との間の出力電界の方向制御を容易にするために、前記シース(450)は前記シャフト電極(462)の径方向の一部を覆うように適合される、請求項10に記載の組織破壊システム。
- 前記複数の組織貫通細長電極は、第1の機械的結合を有する少なくとも第1の組織貫通電極(326)と、第2の機械的結合を有する第2の組織貫通電極(328)とを含み、前記第1及び第2の機械的結合は、当該第1及び第2の組織貫通電極(326,328)が互いに独立して伸長することを許容するように、別々に作動可能である、請求項1から11のいずれか一項に記載の組織破壊システム。
- 前記シース(450)は、窓(452)を含み、該窓(452)は、前記シャフト電極(462)の縮小された領域を露出するように構成される、請求項10に記載の組織破壊システム。
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