JP6013186B2 - 千鳥配置された焼灼素子のアセンブリ - Google Patents
千鳥配置された焼灼素子のアセンブリ Download PDFInfo
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Description
Claims (26)
- 近位端と遠位端との間で長手方向軸に沿って長手方向に延びる細長いカテーテル本体と、
前記カテーテル本体に接続された複数の焼灼素子を有する焼灼素子アセンブリであって、各焼灼素子が、焼灼ゾーン内で組織の焼灼を行うために十分なエネルギーで通電されて焼灼ゾーンを形成し、折畳配置と拡張配置との間で移動可能である焼灼素子アセンブリと、を備える焼灼カテーテルであって、
前記焼灼素子は前記長手方向に螺旋状に千鳥状に配置され、前記焼灼素子の焼灼ゾーンは前記長手方向軸周りの複数の弧状セグメントにわたるが、前記長手方向軸に垂直な面上に長手方向に投影された焼灼素子全部の焼灼ゾーンは、前記拡張配置において前記長手方向軸周りの閉じたループにわたる、焼灼カテーテル。 - 前記焼灼素子が、長手方向または横方向の少なくとも1つで互いに不連続に離間しており、前記焼灼素子の少なくとも2つが互いに長手方向に離間している、請求項1に記載の焼灼カテーテル。
- 前記焼灼素子が前記長手方向軸周りの複数の弧状セグメントにわたるが、前記長手方向軸に垂直な面上に長手方向に投影された焼灼素子全部が、前記拡張配置において前記長手方向軸周りの閉じたループにわたる、請求項1に記載の焼灼カテーテル。
- 前記複数の焼灼素子がRF電極である、請求項1に記載の焼灼カテーテル。
- 前記焼灼素子が、同時に、順次、または任意の順番で通電されて前記焼灼ゾーンを形成するように、独立して制御される、請求項1に記載の焼灼カテーテル。
- 前記カテーテル本体が、ガイドワイヤを受け入れるために前記カテーテル本体の近位端から遠位端までの内腔を有しており、
前記焼灼素子アセンブリが、前記カテーテル本体の内腔を通って延びる前記ガイドワイヤを受け入れる開口部を有する遠位端を備え、前記焼灼素子アセンブリの遠位端が前記カテーテル本体の遠位端の遠位方向に配置されている、請求項1に記載の焼灼カテーテル。 - 前記焼灼素子アセンブリが、ガイドワイヤを受け入れるように、前記焼灼素子アセンブリの遠位端の遠位開口部と中間開口部とを有する管を備え、前記ガイドワイヤは、前記管の前記遠位開口部から前記中間開口部まで延びるとともに、前記カテーテル本体の外部を前記カテーテル本体の近位端に向かって延びる、請求項1に記載の焼灼カテーテル。
- 近位端と遠位端との間で長手方向軸に沿って長手方向に延びる細長いカテーテル本体と、
前記カテーテル本体から離れるように外側に焼灼電極を付勢する弾性付勢部材によって前記カテーテル本体に接続された複数の焼灼電極を有する電極アセンブリであって、各焼灼電極が、焼灼ゾーン内で組織の焼灼を行うために十分なエネルギーで通電されて焼灼ゾーンを形成する、電極アセンブリと、を備える焼灼カテーテルであって、
前記電極アセンブリが折畳配置と拡張配置との間で移動可能であり、前記弾性付勢部材が前記カテーテル本体から離れて前記拡張配置に向かって外側に前記焼灼電極を付勢し、
前記焼灼電極は前記長手方向に螺旋状に千鳥状に配置され、前記焼灼電極の焼灼ゾーンは前記長手方向軸周りの複数の弧状セグメントにわたり、前記長手方向軸に垂直な面上に長手方向に投影された前記焼灼電極全部の焼灼ゾーンが、前記拡張配置において前記長手方向軸周りの閉じたループにわたる、焼灼カテーテル。 - 前記焼灼電極の温度を測定するため、前記複数の焼灼電極と熱的に結合されている複数の温度センサをさらに備える、請求項8に記載の焼灼カテーテル。
- 前記カテーテル本体が、灌流液を前記焼灼電極の方に送出するため、前記複数の焼灼電極の近傍に複数の灌流液流路を備える、請求項8に記載の焼灼カテーテル。
- 前記複数の焼灼電極の少なくとも1つの焼灼電極が、前記カテーテル本体から離れるように外側に前記少なくとも1つの焼灼電極を付勢する対応の弾性付勢部材を有する、請求項8に記載の焼灼カテーテル。
- 前記弾性付勢部材の少なくとも幾つかが前記カテーテル本体の遠位端に接続されている、請求項8に記載の焼灼カテーテル。
- 前記弾性付勢部材の少なくとも幾つかが前記遠位端の近位の前記カテーテル本体の外周面に接続されている、請求項8に記載の焼灼カテーテル。
- 前記焼灼電極の少なくとも幾つかの横方向の寸法がその長手方向の寸法より大きい、請求項8に記載の焼灼カテーテル。
- 前記拡張配置の焼灼電極が被焼灼面と接触し、
前記拡張配置の焼灼電極が、前記長手方向軸周りの複数の弧状セグメントにわたり、前記長手方向軸に垂直な面上に長手方向に投影された前記拡張配置の焼灼電極全部が、前記拡張配置において前記長手方向軸の周囲の閉じたループにわたる、請求項8に記載の焼灼カテーテル。 - 前記焼灼電極が、同時に、順次、または任意の順番で通電されて前記焼灼ゾーンを形成するように、独立して制御される、請求項8に記載の焼灼カテーテル。
- 近位端と遠位端との間で長手方向軸に沿って長手方向に延びる細長いカテーテル本体と、
前記カテーテル本体に接続された電極アセンブリであって、電極アセンブリが複数の背骨を有し、前記背骨のそれぞれが、前記カテーテル本体に接続された近位端と遠位端とを有し、前記背骨の遠位端が背骨遠位接合部に接続されており、各背骨が、中間セグメント、前記背骨の近位端と中間セグメントとの間の近位剛性変化部と、前記背骨の遠位端と中間セグメントとの間の遠位剛性変化部と、を備え、前記背骨が前記中間セグメントに複数の焼灼電極を備え、各焼灼電極が、焼灼ゾーン内で組織の焼灼を行うために十分なエネルギーで通電されて焼灼ゾーンを形成する、電極アセンブリと、を備える焼灼カテーテルであって、
前記電極アセンブリが折畳配置と拡張配置との間で移動可能であり、前記拡張配置の前記背骨の中間セグメントが、前記折畳配置に関する前記背骨の近位端と遠位端とに対して外側に移動し、
前記焼灼電極が前記中間セグメント上に前記長手方向に螺旋状に千鳥状に配置され、前記焼灼電極の焼灼ゾーンが前記長手方向軸周りの複数の弧状セグメントにわたり、前記長手方向軸に垂直な面上に長手方向に投影された前記焼灼電極全部の焼灼ゾーンが、前記拡張配置において前記長手方向軸周りの閉じたループにわたる、焼灼カテーテル。 - 各背骨が、前記背骨の中間セグメントと近位端との間に連結された近位脚部と、前記背骨の中間セグメントと遠位端との間に連結された遠位脚部と、を備える、請求項17に記載の焼灼カテーテル。
- 前記近位脚部は前記中間セグメントより剛性が低く、前記遠位脚部は前記中間セグメントより剛性が低い、請求項18に記載の焼灼カテーテル。
- 各背骨が、前記近位脚部と前記中間セグメントとの間に連結された近位蝶番と、前記遠位脚部と前記中間セグメントとの間に連結された遠位蝶番と、を備える、請求項18に記載の焼灼カテーテル。
- 前記近位脚部は前記中間セグメントより断面積が小さく、前記遠位脚部は前記中間セグメントより断面積が小さい、請求項18に記載の焼灼カテーテル。
- 前記焼灼電極の温度を測定するため、前記複数の焼灼電極と熱的に結合している複数の温度センサをさらに備える、請求項17に記載の焼灼カテーテル。
- 前記背骨が、灌流液を前記焼灼電極の方に送出するため、前記複数の焼灼電極の近傍に複数の灌流液流路を備える、請求項17に記載の焼灼カテーテル。
- 前記焼灼電極の少なくとも幾つかの横方向の寸法がその長手方向の寸法より大きい、請求項17に記載の焼灼カテーテル。
- 前記拡張配置の焼灼電極が被焼灼面と接触し、
前記拡張配置の焼灼電極が前記長手方向軸周りの複数の弧状セグメントにわたり、前記長手方向軸に垂直な面上に長手方向に投影された前記拡張配置の焼灼電極全部が、前記拡張配置において前記長手方向軸周りの閉じたループにわたる、請求項17に記載の焼灼カテーテル。 - 前記背骨の少なくとも1つが、前記拡張配置に向かって前記背骨を付勢する形状記憶材料を有する、請求項17に記載の焼灼カテーテル。
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2010
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- 2010-11-15 US US12/945,982 patent/US8979839B2/en active Active
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US20110118726A1 (en) | 2011-05-19 |
AU2010319333B2 (en) | 2014-02-20 |
JP2013510689A (ja) | 2013-03-28 |
EP2498706A1 (en) | 2012-09-19 |
US8979839B2 (en) | 2015-03-17 |
CR20120291A (es) | 2012-09-04 |
CA2781951A1 (en) | 2011-05-19 |
AU2010319333A1 (en) | 2012-05-31 |
WO2011060339A1 (en) | 2011-05-19 |
EP2498706B1 (en) | 2016-04-20 |
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