JP2014516620A5 - アブレーションシステム、アブレーションシステムの作動方法及び液体 - Google Patents

アブレーションシステム、アブレーションシステムの作動方法及び液体 Download PDF

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JP2014516620A5
JP2014516620A5 JP2014505263A JP2014505263A JP2014516620A5 JP 2014516620 A5 JP2014516620 A5 JP 2014516620A5 JP 2014505263 A JP2014505263 A JP 2014505263A JP 2014505263 A JP2014505263 A JP 2014505263A JP 2014516620 A5 JP2014516620 A5 JP 2014516620A5
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  1. 細長い本体であって、前記細長い本体に隣接した組織塊内に液体を供給する内側ルーメンを有する細長い本体と、
    前記細長い本体に隣接した前記組織塊を加熱するアブレーション要素と、
    前記細長い本体から分離され、前記内側ルーメンを介して液体を供給するべく、前記内側ルーメンに流体接続する液体供給源であって、前記液体供給源は、前記液体が、所定の分圧よりも低い分圧を有する1又は複数の気体を収容するように、少なくとも部分的に脱気された一定量の液体を収容する、液体供給源と
    を備えるアブレーションシステム。
  2. 前記液体供給源に連結され、前記液体供給源から前記細長い本体の前記内側ルーメンに液体を供給するポンプを更に備える請求項1に記載のアブレーションシステム。
  3. 前記液体供給源に連結され、少なくとも部分的に前記液体を脱気する物質交換器を更に備える請求項1又は2に記載のアブレーションシステム。
  4. 前記液体供給源は、前記内側ルーメンへと液体を供給するために、前記細長い本体に連結された注射器を含む請求項1から3のいずれか一項に記載のアブレーションシステム。
  5. 前記液体は、生理食塩水を含む請求項1から4のいずれか一項に記載のアブレーションシステム。
  6. 前記液体中の前記気体の量を測定するセンサを更に備える請求項1から5の何れか一項に記載のアブレーションシステム。
  7. 前記細長い本体の前記内側ルーメン内に配置され、前記細長い本体から供給される前記液体を加熱する加熱アセンブリを
    更に備える請求項1から6のいずれか一項に記載のアブレーションシステム。
  8. 前記液体内に収容された酸素の分圧は、約20水銀柱ミリメートルから約40水銀柱ミリメートルの範囲内である
    請求項1から7のいずれか一項に記載のアブレーションシステム。
  9. 前記細長い本体の少なくとも遠位部分は、前記組織塊内に挿入される
    請求項1から8のいずれか一項に記載のアブレーションシステム。
  10. 前記細長い本体は、組織穿刺遠位端を含む
    請求項1から9のいずれか一項に記載のアブレーションシステム。
  11. 前記組織穿刺遠位端は、先の尖った端である
    請求項10に記載のアブレーションシステム。
  12. 前記液体は、本質的に、標準の生理食塩水溶液からなる
    請求項1から11のいずれか一項に記載のアブレーションシステム。
  13. 前記液体は、本質的に、濃縮された生理食塩水溶液からなる
    請求項1から11のいずれか一項に記載のアブレーションシステム。
  14. 前記液体は、本質的に、リンゲル溶液からなる
    請求項1から11のいずれか一項に記載のアブレーションシステム。
  15. 液体供給源と接続し、前記液体供給源からの液体を少なくとも部分的に脱気する物質交換器と、
    細長い本体であって、前記細長い本体に隣接した組織塊内に前記液体を供給する細長い本体と、
    前記細長い本体に隣接した前記組織塊を加熱するアブレーション要素と
    を備えるアブレーションシステム。
  16. 前記物質交換器は、前記細長い本体の近位端に連結された制御ユニット内に配置され、
    前記制御ユニットは、液体供給源から、前記物質交換器を通過して、前記細長い本体の内側ルーメン内に液体を供給するポンプを有する請求項15に記載のアブレーションシステム。
  17. 前記物質交換器を流れた後の液体中の気体の量を測定するセンサを更に備える請求項15又は16に記載のアブレーションシステム。
  18. 前記細長い本体から供給される前記液体を加熱する加熱アセンブリを
    更に備える請求項15から17のいずれか一項に記載のアブレーションシステム。
  19. 前記加熱アセンブリによって加熱される前に、液体が少なくとも部分的に脱気されるように、前記物質交換器は前記加熱アセンブリの近傍に配置される請求項18に記載のアブレーションシステム。
  20. 前記液体内に収容された酸素の分圧は、約20水銀柱ミリメートルから約40水銀柱ミリメートルの範囲内である
    請求項15から19のいずれか一項に記載のアブレーションシステム。
  21. 前記細長い本体の少なくとも遠位部分は、前記組織塊内に挿入される
    請求項15から20のいずれか一項に記載のアブレーションシステム。
  22. 前記細長い本体は、組織穿刺遠位端を含む
    請求項15から21のいずれか一項に記載のアブレーションシステム。
  23. 前記組織穿刺遠位端は、先の尖った端である
    請求項22に記載のアブレーションシステム。
  24. 前記液体は、本質的に、標準の生理食塩水溶液からなる
    請求項15から23のいずれか一項に記載のアブレーションシステム。
  25. 前記液体は、本質的に、濃縮された生理食塩水溶液からなる
    請求項15から23のいずれか一項に記載のアブレーションシステム。
  26. 前記液体は、本質的に、リンゲル溶液からなる
    請求項15から23のいずれか一項に記載のアブレーションシステム。
  27. 前記物質交換器は、複数の非同軸気体透過性導管及び非同軸液体非透過性導管を含む
    請求項15から26のいずれか一項に記載のアブレーションシステム。
  28. 前記物質交換器は、前記物質交換器を流れる前記液体内の気体の量を調整するために、ガス源に連結する少なくとも1つの出口を含む
    請求項15から27のいずれか一項に記載のアブレーションシステム。
  29. 前記ガス源は、前記液体から気体を取り除く
    ための真空源を含む請求項28に記載のアブレーションシステム。
  30. 前記ガス源は、所定の圧力よりも低い圧力を有する1又は複数の気体の一定量を含む
    請求項28に記載のアブレーションシステム。
  31. アブレーションシステムの作動方法であって、
    液体供給源からの液体であって、所定の分圧よりも低い分圧を有する1又は複数の気体を前記液体が含むように、前記液体供給源内の前記液体が少なくとも部分的に脱気された前記液体を、細長い本体の側壁に形成された少なくとも1つの出口孔に供給する段階
    を備える作動方法。
  32. 前記細長い本体の前記少なくとも1つの出口孔に液体を供給する段階は、前記細長い本体の内側ルーメンを通り、前記少なくとも1つの出口孔へ液体を押し出す段階を含む
    請求項31に記載の作動方法。
  33. 前記少なくとも1つの出口孔に前記液体を供給する段階の前に、前記所定の分圧よりも低い分圧でその中に収容された前記1又は複数の気体をもたらすために、少なくとも部分的に前記液体を脱気する段階を
    更に備える請求項31又は32に記載の作動方法。
  34. 前記液体を少なくとも部分的に脱気する段階は、前記細長い本体に前記液体を供給する段階の前に、物質交換器に前記液体を通過させる段階を含む
    請求項31から33のいずれか一項に記載の作動方法。
  35. 前記液体は、本質的に、標準の生理食塩水溶液からなる
    請求項31から34のいずれか一項に記載の作動方法。
  36. 前記液体は、本質的に、濃縮された生理食塩水溶液からなる
    請求項31から34のいずれか一項に記載の作動方法。
  37. 前記液体は、本質的に、リンゲル溶液からなる
    請求項31から34のいずれか一項に記載の作動方法。
  38. 前記少なくとも1つの出口孔に前記液体を供給する段階の前に、センサにより、前記液体内の少なくとも1つの気体の分圧を決定する段階を更に備える
    請求項31から37のいずれか一項に記載の作動方法。
  39. アブレーションシステムの作動方法であって、
    所定の分圧よりも低い分圧を有する1又は複数の気体を含むように、少なくとも部分的に脱気された液体を、細長い本体の内側ルーメンを介して供給する段階と、
    前記少なくとも部分的に脱気された液体が、前記細長い本体内の少なくとも1つの出口孔を介して流れる段階の前に、前記内側ルーメンを介して流れ、前記少なくとも部分的に脱気された液体を加熱するための前記内側ルーメン内に配置された少なくとも1つの加熱アセンブリにエネルギーを供給する段階と、
    前記少なくとも1つの加熱アセンブリにエネルギーを供給しながら同時に、アブレーション要素にエネルギーを供給する段階と
    を備える作動方法。
  40. 前記内側ルーメンを介して前記少なくとも部分的に脱気された液体を供給する段階の前に、前記液体を少なくとも部分的に脱気する物質交換器を介して液体を供給するポンプをアクティブ化する段階を更に備え、
    前記少なくとも部分的に脱気された液体は、前記物質交換器から前記細長い本体の前記内側ルーメンに流れる
    請求項39に記載の作動方法。
  41. 前記内側ルーメンを介して前記少なくとも部分的に脱気された液体を供給する段階は、前記少なくとも部分的に脱気された液体をタンクから前記内側ルーメンに供給するためのポンプをアクティブ化する段階を含む
    請求項39又は40に記載の作動方法。
  42. 前記液体は、本質的に、標準の生理食塩水溶液からなる
    請求項39から41のいずれか一項に記載の作動方法。
  43. 前記液体は、本質的に、濃縮された生理食塩水溶液からなる
    請求項39から41のいずれか一項に記載の作動方法。
  44. 前記液体は、本質的に、リンゲル溶液からなる
    請求項39から41のいずれか一項に記載の作動方法。
  45. 前記細長い本体の前記内側ルーメンを介して少なくとも部分的に脱気された液体を供給する段階の前に、センサにより、前記少なくとも部分的に脱気された液体内の気体の量を決定する段階を更に備える
    請求項39から44のいずれか一項に記載の作動方法。
  46. 流体補助アブレーション術用の少なくとも部分的に脱気された液体であって、
    前記少なくとも部分的に脱気された液体は、脱気された生理食塩水を含む
    液体。
  47. 1又は複数の化学物質を用いて脱気する段階と、
    生理食塩水が残るまで、通常の生理食塩水の第1の体積及び純水の第2の体積を煮沸する段階を任意で含む、前記生理食塩水を煮沸する段階と、
    前記生理食塩水を密閉し、前記生理食塩水を冷却する段階と、
    前記生理食塩水を真空に曝露する段階と、
    所望の気体濃度を有する気体に前記生理食塩水を曝露する段階と
    により得られる
    請求項46に記載の液体。
  48. 殺菌された標準の生理食塩水溶液、リンゲル溶液、又は濃縮された生理食塩水溶液を含むこと、
    約40度から約80℃までの範囲内の温度を有すること、及び
    約0ml/minから約20ml/minまでの生理食塩水の流量を有すること
    の少なくとも1つで構成される
    請求項46又は47に記載の液体。
  49. 請求項1から30のいずれか一項に記載のアブレーションシステム内の流体補助アブレーション治療剤として利用するための請求項46から48のいずれか一項に記載の液体。
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