JP6914252B2 - 関節鏡下デバイスおよび方法 - Google Patents
関節鏡下デバイスおよび方法 Download PDFInfo
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- JP6914252B2 JP6914252B2 JP2018521293A JP2018521293A JP6914252B2 JP 6914252 B2 JP6914252 B2 JP 6914252B2 JP 2018521293 A JP2018521293 A JP 2018521293A JP 2018521293 A JP2018521293 A JP 2018521293A JP 6914252 B2 JP6914252 B2 JP 6914252B2
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Description
本願は、米国仮出願第62/250,315号(2015年11月3日出願、代理人事件番号41879−711.101)、米国仮出願第62/245,796号(2015年10月23日出願、代理人事件番号41879−710.101)、および米国特許出願第14/977,256号(2015年12月21日出願、代理人事件番号41879−712.202)の利益を主張し、上記出願の全開示は、参照により本明細書に引用される。
本発明は、関節鏡下組織切断および除去デバイスに関し、それによって、解剖学的組織が、関節または他の部位から切断および除去され得る。より具体的には、本発明は、骨または他の硬組織を切断および除去するために構成され、セラミック切断部材を有する器具に関する。
本明細書は、例えば、以下の項目も提供する。
(項目1)
組織を除去するための医療デバイスであって、前記医療デバイスは、
縦軸、近位端、および遠位端を有する細長いスリーブと、
切断縁を伴う誘電切断部材であって、前記部材は、前記細長いスリーブの遠位端から遠位に延びている、誘電切断部材と、
前記切断部材によって支持されている電極と、
前記細長いスリーブの近位端に結合し、前記切断部材を回転させるように構成されているモータ駆動部と
を備えている、医療デバイス。
(項目2)
前記切断縁の半径方向外向き回転周縁は、前記電極の外向き回転周縁と少なくとも同じ大きさである、項目1に記載の医療デバイス。
(項目3)
前記誘電材料は、耐摩耗性セラミック材料を備えている、項目1に記載の医療デバイス。
(項目4)
前記誘電材料は、もっぱら前記耐摩耗性セラミック材料を備えている、項目3に記載の医療デバイス。
(項目5)
前記耐摩耗性セラミック材料は、イットリア安定ジルコニア、マグネシア安定ジルコニア、セリア安定ジルコニア、ジルコニア強化アルミナ、および窒化ケイ素から成る群から選択される、項目3に記載の医療デバイス。
(項目6)
前記切断部材は、少なくとも1つの窓をその側面に有し、前記少なくとも1つの窓は、負圧源に接続されるように構成されている前記細長いスリーブの内部チャネルと連通している、項目1に記載の医療デバイス。
(項目7)
前記窓は、前記電極に隣接している、項目6に記載の医療デバイス。
(項目8)
前記窓は、前記電極の近位にある、項目6に記載の医療デバイス。
(項目9)
前記窓は、前記切断縁の近位にある、項目6に記載の医療デバイス。
(項目10)
前記窓は、前記切断縁の少なくとも部分的に中間にある、項目6に記載の医療デバイス。
(項目11)
前記電極に接続されているRF源と、前記モータ駆動部、前記RF源、および前記負圧源に動作可能に接続されているコントローラとをさらに備えている、項目8に記載の医療デバイス。
(項目12)
前記切断部材は、1〜100の切断縁を有し、前記切断部材は、2mm〜10mmに及ぶ直径を有し、前記切断縁は、1mm〜10mmに及ぶ軸方向長にわたって延びている、項目1に記載の医療デバイス。
(項目13)
前記切断縁は、前記軸に対して螺旋であるパターン、角度付けられているパターン、および直線であるパターンのうちの少なくとも1つから選択されたパターンで配置されている、項目1に記載の医療デバイス。
(項目14)
組織を除去するための医療システムであって、前記医療システムは、
セラミック材料を備えている遠位先端を伴う細長い回転可能シャフトと、
前記シャフトおよび前記遠位先端を回転させるように構成されているモータ駆動部と、
前記遠位先端によって支持されている電極であって、前記電極は、RF源に結合されている、電極と、
前記モータ駆動部および前記RF源に動作可能に接続されているコントローラであって、前記コントローラは、前記シャフトの回転を選択された位置で停止させるように構成されている、コントローラと
を備えている、医療システム。
(項目15)
前記シャフトの回転位置を感知し、前記回転位置を示す信号を前記コントローラに送信するように構成されているセンサをさらに備え、前記コントローラは、前記シャフトの回転を前記選択された位置で停止させるように構成されている、項目14に記載の医療デバイス。
(項目16)
前記センサは、ホールセンサである、項目15に記載の医療デバイス。
(項目17)
前記コントローラは、前記シャフトが前記選択された位置にあるとき、前記電極へのRFエネルギーの送達を制御するようにさらに構成されている、項目15に記載の医療デバイス。
(項目18)
前記回転可能シャフトの前記遠位先端は、少なくとも1つの窓をその側面に有し、前記少なくとも1つの窓は、負圧源と連通するように構成されている前記シャフト内の内部チャネルに対して開放している、項目14に記載の医療デバイス。
(項目19)
前記窓は、前記電極に隣接している、項目18に記載の医療デバイス。
(項目20)
前記窓は、少なくとも部分的に前記電極の近位にある、項目18に記載の医療デバイス。
(項目21)
前記遠位先端は、耐摩耗性セラミック材料を備えている、項目14に記載の医療デバイス。
(項目22)
前記遠位先端は、もっぱら前記耐摩耗性セラミック材料を備えている、項目21に記載の医療デバイス。
(項目23)
組織を除去するための医療デバイスであって、前記医療デバイスは、
セラミック部材を備えている遠位先端を伴う細長いシャフトと、
前記シャフト内の内部チャネルに接続されている前記セラミック部材における窓と、
前記窓の遠位端に隣接して位置付けられている前記セラミック部材における電極と
を備え、
前記内部チャネルは、負圧源に結合されるように構成されている、医療デバイス。
(項目24)
前記電極は、前記窓の幅の少なくとも50%と等しい幅を有する、項目23に記載の医療デバイス。
(項目25)
前記窓の少なくとも1つの辺は、鋭い縁を有する、項目23に記載の医療デバイス。
(項目26)
前記電極は、前記窓の遠位端を少なくとも部分的に包囲している、項目23に記載の医療デバイス。
(項目27)
前記セラミック部材は、組織を切断するための少なくとも1つの鋭い縁を有する、項目23に記載の医療デバイス。
(項目28)
前記セラミック部材の半径方向外向き表面は、円筒形周縁を画定し、前記電極の外向き表面は、前記円筒形周縁の内側にある、項目23に記載の医療デバイス。
(項目29)
前記セラミック部材は、組織を切断するための複数の鋭い縁を有する、項目23に記載の医療デバイス。
(項目30)
電気外科手術用組織アブレーションの方法であって、前記方法は、
作業端を伴う細長いシャフトを提供することであって、前記作業端は、前記シャフト内の内部チャネルに対して開放している窓に隣接して支持されている活性電極を備え、前記内部チャネルは、負圧源に接続されている、ことと、
前記活性電極および窓を流体充填空間内の標的組織と接触して位置付けることと、
前記負圧源をアクティブにし、それによって、標的組織を前記窓の中に吸引することと、
前記作業端を前記標的組織に対して平行移動させながら、RFエネルギーを前記活性電極に送達し、組織をアブレーションすることと
を含む、方法。
Claims (29)
- 組織を除去するための医療デバイスであって、前記医療デバイスは、
縦軸、近位端、および遠位端を有する細長いスリーブと、
セラミック切断縁を伴う誘電切断部材であって、前記部材は、前記細長いスリーブの遠位端から遠位に延びている、誘電切断部材と、
前記切断部材によって支持されている電極と、
前記細長いスリーブの近位端に結合し、前記切断部材を回転させるように構成されているモータ駆動部と
を備えている、医療デバイス。 - 前記セラミック切断縁の半径方向外向き回転周縁は、前記電極の外向き回転周縁と少なくとも同じ大きさである、請求項1に記載の医療デバイス。
- 前記誘電材料は、耐摩耗性セラミック材料を備えている、請求項1に記載の医療デバイス。
- 前記誘電材料は、もっぱら前記耐摩耗性セラミック材料から成る、請求項3に記載の医療デバイス。
- 前記耐摩耗性セラミック材料は、イットリア安定ジルコニア、マグネシア安定ジルコニア、セリア安定ジルコニア、ジルコニア強化アルミナ、および窒化ケイ素から成る群から選択される、請求項3に記載の医療デバイス。
- 前記切断部材は、少なくとも1つの窓をその側面に有し、前記少なくとも1つの窓は、負圧源に接続されるように構成されている前記細長いスリーブの内部チャネルと連通している、請求項1に記載の医療デバイス。
- 前記窓は、前記電極に隣接している、請求項6に記載の医療デバイス。
- 前記窓は、前記電極の近位にある、請求項6に記載の医療デバイス。
- 前記窓は、前記セラミック切断縁の近位にある、請求項6に記載の医療デバイス。
- 前記窓は、前記セラミック切断縁の少なくとも部分的に中間にある、請求項6に記載の医療デバイス。
- 前記電極に接続されているRF源と、前記モータ駆動部、前記RF源、および前記負圧源に動作可能に接続されているコントローラとをさらに備えている、請求項8に記載の医療デバイス。
- 前記切断部材は、1〜100のセラミック切断縁を有し、前記切断部材は、2mm〜10mmに及ぶ直径を有し、前記セラミック切断縁は、1mm〜10mmに及ぶ軸方向長にわたって延びている、請求項1に記載の医療デバイス。
- 前記セラミック切断縁は、前記軸に対して螺旋であるパターン、角度付けられているパターン、および直線であるパターンのうちの少なくとも1つから選択されたパターンで配置されている、請求項1に記載の医療デバイス。
- 組織を除去するための医療システムであって、前記医療システムは、
複数のセラミック切断縁を備えている遠位先端を伴う細長い回転可能シャフトと、
前記シャフトおよび前記遠位先端を回転させるように構成されているモータ駆動部と、
前記遠位先端によって支持されている電極であって、前記電極は、RF源に結合されている、電極と、
前記モータ駆動部および前記RF源に動作可能に接続されているコントローラであって、前記コントローラは、前記シャフトの回転を選択された位置で停止させるように構成されている、コントローラと
を備えている、医療システム。 - 前記シャフトの回転位置を感知し、前記回転位置を示す信号を前記コントローラに送信するように構成されているセンサをさらに備え、前記コントローラは、前記シャフトの回転を前記選択された位置で停止させるように構成されている、請求項14に記載の医療デバイス。
- 前記センサは、ホールセンサである、請求項15に記載の医療デバイス。
- 前記コントローラは、前記シャフトが前記選択された位置にあるとき、前記電極へのRFエネルギーの送達を制御するようにさらに構成されている、請求項15に記載の医療デバイス。
- 前記回転可能シャフトの前記遠位先端は、少なくとも1つの窓をその側面に有し、前記少なくとも1つの窓は、負圧源と連通するように構成されている前記シャフト内の内部チャネルに対して開放している、請求項14に記載の医療デバイス。
- 前記窓は、前記電極に隣接している、請求項18に記載の医療デバイス。
- 前記窓は、少なくとも部分的に前記電極の近位にある、請求項18に記載の医療デバイス。
- 前記遠位先端は、耐摩耗性セラミック材料を備えている、請求項14に記載の医療デバイス。
- 前記遠位先端は、もっぱら前記耐摩耗性セラミック材料から成る、請求項21に記載の医療デバイス。
- 組織を除去するための医療デバイスであって、前記医療デバイスは、
複数のセラミック切断縁を伴うセラミック部材を備えている遠位先端を伴う細長いシャフトと、
前記シャフト内の内部チャネルに接続されている前記セラミック部材における窓と、
前記窓の遠位端に隣接して位置付けられている前記セラミック部材における電極と
を備え、
前記内部チャネルは、負圧源に結合されるように構成されている、医療デバイス。 - 前記電極は、前記窓の幅の少なくとも50%と等しい幅を有する、請求項23に記載の医療デバイス。
- 前記窓の少なくとも1つの辺は、鋭い縁を有する、請求項23に記載の医療デバイス。
- 前記電極は、前記窓の遠位端を少なくとも部分的に包囲している、請求項23に記載の医療デバイス。
- 前記セラミック部材は、組織を切断するための2〜100のセラミック切断縁を有する、請求項23に記載の医療デバイス。
- 前記複数のセラミック切断縁の半径方向外向き表面は、円筒形周縁を画定し、前記電極の外向き表面は、前記円筒形周縁の内側にある、請求項23に記載の医療デバイス。
- 電気外科手術用組織アブレーションのためのシステムであって、前記システムは、
作業端を伴う細長いシャフトであって、前記作業端は、複数のセラミック切断縁と、前記細長いシャフト内の内部チャネルに対して開放している窓に隣接して支持されている活性電極とを備える、細長いシャフトと、
負圧源と
を備え、
前記細長いシャフト内の前記内部チャネルは、前記負圧源に接続されており、
前記活性電極および窓は、流体充填空間内の標的組織と接触して位置付けられるように構成されており、
前記負圧源は、アクティブにされ、それによって、標的組織を前記窓の中に吸引するように構成されており、
前記作業端を前記標的組織に対して平行移動させながら、RFエネルギーが前記活性電極に送達され、組織をアブレーションする、システム。
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