JP2022519795A - 中空又は管状の身体構造を管腔内で閉塞する方法及び装置 - Google Patents
中空又は管状の身体構造を管腔内で閉塞する方法及び装置 Download PDFInfo
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Abstract
Description
本出願は、2018年9月18日に出願された係属中の米国仮特許出願第62/732,875号明細書の利益を主張し、2019年6月24日に出願された先行する係属中の米国特許出願第16/450,931号明細書の一部継続出願であり、それら出願の開示内容はその全体が参照により本明細書に援用される。
Claims (16)
- 対向する壁を有する中空の哺乳動物の解剖学的構造の少なくとも一部分を管腔内で閉塞する装置であって、前記壁が各々内面及び外面を有し、前記装置が、
近位端及び遠位端を有するとともに、本来の生体管腔を通って前記中空の解剖学的構造まで前進可能なカテーテルであって、前記カテーテルの遠位領域において開放する2つのカテーテル内腔を有し、各内腔が出口を有する針を収容し、各針が閉塞クリップを収容し、各クリップが、前記針から放出されると、前記針内に収容可能な低断面形態から展開されたより大きい断面の形態に構成可能である、カテーテル
を備え、
前記針が、前記解剖学的構造の対向する壁を穿刺するとともに、前記解剖学的構造の外部に前記針出口を配置するように、前記針のカテーテル内腔の前記遠位端から延出可能であり、
前記装置が、
各閉塞クリップに関連するとともに、前記針の遠位先端が前記解剖学的構造の前記壁の外部に配置されている間、前記クリップを前記針出口から押し出すようにその関連する針内で移動可能であり、それにより、前記解剖学的構造の両側で前記クリップを展開する、クリッププッシャと、
前記クリップを接続するとともに、前記クリップが前記針から放出された後に前記クリップを互いに向かって引き寄せて、前記クリップの間で前記解剖学的構造の前記対向する壁を締め付けるように操作可能である、少なくとも1本の紐と、
前記クリップをそれらの組織締付形態で固定する手段と、
を備える、装置。 - 各クリップが、前記針から放出された後にその低断面からその拡大断面まで拡張可能である、請求項1に記載の装置。
- 前記クリップが、前記針から放出されると自己拡張可能である、請求項2に記載の装置。
- 前記各クリップが別個の紐を有し、各紐が頭端部及び尾部を有し、前記クリップをそれらの組織締付形態で固定する前記手段が、自己固定紐ロック部材を備え、前記紐の前記尾部が前記紐ロックを通過し、前記紐及び前記紐ロックが、前記紐が前記クリップを互いに向かって引き寄せる方向にのみ前記紐ロックを通って移動することができるように構成されている、請求項1に記載の装置。
- 前記紐ロックを解放可能に収容している第3内腔を有する前記カテーテルと、
前記第3内腔内に移動可能に配置されるとともに前記紐ロックを前記第3内腔から押し出すように適合されたプッシャチューブであって、前記紐の前記尾部が前記紐ロックを通り且つ前記プッシャチューブを通って延在する、プッシャチューブと、
をさらに備える、請求項4に記載の装置。 - 前記クリップの各々が、管状本体と、前記管状本体から延在する複数の脚部とを備え、前記脚部が、前記低断面形態から、前記脚部が前記管状本体からより半径方向外向きに延在する拡張可能形態まで弾性的に自己拡張可能である、請求項3に記載の装置。
- 各紐の前記頭端部が、その関連するクリップの前記管状本体に、その尾部が前記クリップの脚端部を通って延在して、取り付けられる、請求項4に記載の装置。
- 前記クリップが組織なしに突き合わされるとき、前記クリップの前記脚部が互いに噛み合うように構成されている前記クリップ
をさらに備える、請求項6に記載の装置。 - 組織が前記クリップの間で締め付けられると、前記組織が蛇行形態で拘束されるように十分な剛性を有する前記クリップの前記脚部をさらに備える、請求項8に記載の装置。
- 単一の紐があり、前記単一の紐が頭部及び尾部を有し、前記尾部が前記クリップのうちの第1クリップを摺動可能に通過し、前記頭端部が前記クリップのうちの第2クリップに固定され、前記単一の紐及び前記第1クリップが、協働して、前記紐が前記クリップを互いに引き寄せる方向においてのみ前記第1クリップを通過することができるようにする、請求項1に記載の装置。
- 前記針が、前記カテーテル内で広がる向きで方向付けられている、請求項1に記載の装置。
- 前記針が、前記カテーテル内で平行に方向付けられている、請求項1に記載の装置。
- 前記カテーテルの前記遠位端が操縦可能である、請求項に記載の装置。
- 前記固定する手段が、
前記紐が、その長さに沿って形成されるとともに前記紐の一方の側にのみ延在する複数の突起を有し、前記紐の反対側が、突起がなく且つ前記第1クリップの表面に対して摺動可能であり、前記クリップの前記管状部分が、前記管状本体内の適所に延在するタブを有し、前記タブが、前記突起と係合して、前記突起が前記クリップを互いに向かって引き寄せる方向にのみ前記タブを越えて移動することができるようにする、
ことを含む、請求項10に記載の装置。 - 中空の解剖学的構造を管腔内で閉塞する方法であって、
第1自己拡張可能組織閉塞クリップを担持する第1針と、前記第1クリップに接続された第1紐とを、前記解剖学的構造まで管腔内で前進させるステップと、
第2自己拡張可能組織閉塞クリップを担持する第2針と、前記第2クリップに接続された第2紐とを、前記解剖学的構造まで管腔内で前進させるステップと、
前記針に、対向する場所で前記解剖学的構造の壁を穿刺させ、そのように位置決めされている間、前記クリップをそれらのそれぞれの針から排出して前記クリップを前記構造の外部で位置決めし、それにより、前記クリップが前記解剖学的構造の外部で自己拡張することができる、ステップと、
前記クリップを互いに引き寄せて、前記構造の対向する壁を互いに締め付けるステップと、
前記クリップをそれらの組織締付形態で固定するステップと、
を含む、方法。 - 中空の解剖学的構造を管腔内で閉塞する方法であって、
出口を有する針を前記解剖学的構造まで管腔内で前進させるステップであって、前記針が、第1組織閉塞クリップ及び第2組織閉塞クリップを担持し、前記クリップが前記針内で縦に並んで収容される、ステップと、
前記第1クリップに取り付けられるとともに前記第2クリップを通って摺動可能に延在する可撓性紐と、
前記針に、第1場所で前記解剖学的構造の壁を穿刺させて、前記解剖学的構造の外部に前記針出口を配置するステップと、
前記針から前記第1クリップを排出して前記構造の外部に前記クリップを配置するステップと、
前記構造内に前記針を後退させ、次いで、前記針に、前記第1場所から間隔が空けられた第2場所で前記構造の前記壁を穿刺させて、前記構造の外部に前記針を配置し、次いで、針から前記第2クリップを排出して前記第1クリップから間隔が空けられた場所で前記構造の外部に前記第2クリップを配置し、それにより、両クリップが前記構造の外部で間隔が空けられた位置で位置決めされ、それにより、前記クリップが前記解剖学的構造の外部で自己拡張することができる、ステップと、
前記クリップを互いに引き寄せて、前記構造の対向する壁を互いに締め付けるステップと、
前記クリップをそれらの組織締付形態で固定するステップと、
を含む、方法。
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US16/573,600 US11191548B2 (en) | 2018-09-18 | 2019-09-17 | Method and apparatus for intraluminally occluding hollow or tubular body structures |
US16/573,600 | 2019-09-17 | ||
PCT/US2019/061255 WO2020061596A1 (en) | 2018-09-18 | 2019-11-13 | Method and apparatus for intraluminally occluding hollow or tubular body structures |
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