JP6866367B2 - 医療器具の操向アセンブリおよび使用方法 - Google Patents
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Description
[0001]本出願は、参照によって本明細書に組み込まれる2015年11月9日出願の米国特許仮出願第62/252,970号の優先権を主張する。
参照による組み込み
[0002]本明細書で言及するすべての公刊物および特許出願は、各々の公刊物または特許出願が参照によって組み込まれるものとして具体的かつ個別に示されているのと変わらずに参照によって本明細書に組み込まれる。
[00012]幾つかの実施形態では、内側管状部材は操縦可能部位に内側管状部材が選択的に湾曲するように構成された湾曲面を有しており、その湾曲面は背骨部を通り、その背骨部は内側管状部材の長手方向軸と平行であり、内側管状部材は、背骨部で直線的に位置合わせされて内側柔軟ポリマー製管状部材のポリマー材料に埋め込まれた補強部材をさらに含む。
[00016]幾つかの実施形態では、内側管状部材は、選択的湾曲軸に沿って湾曲されたとき、内側管状部材の曲率半径が操縦可能部位の長さに沿って遠位方向に減少するように構成される。
[00019]幾つかの実施形態では、選択的湾曲軸に沿って湾曲させたときの操縦可能部位の曲率半径は、第1および第2のポリマーセクションの作用によって、操縦可能部位の近位端からの距離が増すほどに小さくなる。
[00021]本開示の一態様は、外側柔軟ポリマー製管状部材と;外側管状部材に内設された内側柔軟ポリマー製管状部材と;外側および内側柔軟ポリマー製管状部材を含む操縦可能部位であって、外側および内側柔軟ポリマー製管状部材がそれぞれ操縦可能部位内で選択的に湾曲するように構成されており、外側および内側柔軟ポリマー製管状部材が操縦可能部位の遠位の固定箇所で互いに軸方向に恒久固定されている操縦可能部位において、内側管状部材が背骨部および選択的湾曲軸を通る湾曲面を含む操縦可能部位と;背骨部で直線的に位置合わせされて内側管状部材のポリマー材料に埋め込まれた補強部材と;操作されたとき外側および内側柔軟ポリマー製管状部材の少なくとも一方を操縦可能部位の近位位置で他方に対して軸方向に移動させることで、操縦可能部位で外側および内側の柔軟ポリマー製管状部材の間に相対的な軸方向の移動を引き起こし、それによって操縦可能部位を操縦するように構成された外部コントローラとを備える操縦可能な医療器具である。
[00024]幾つかの実施形態では、内側柔軟ポリマー製部材は第2のポリマーセクションと第2の継ぎ目で接続する第3のポリマーセクションを操縦可能部位にさらに備え、第2の継ぎ目は内側柔軟ポリマー製管状部材の長手方向軸と平行でも垂直でもない遷移セクションを含み、第3のポリマーセクションは第3の剛性、すなわち第1の剛性とも第2の剛性とも異なる剛性を有する。第1のポリマーセクションは第1のデュロメータ値を、第2のポリマーセクションは第2のデュロメータ値を、そして第3のポリマーセクションは第3のデュロメータ値をそれぞれ有するものであってよく、そのとき、第1のデュロメータ値は第2のデュロメータ値よりも高く、第2のデュロメータ値は第3のデュロメータ値よりも高い。
[00027]幾つかの実施形態では、内側管状部材は、選択的湾曲軸に沿って湾曲するとき、内側管状部材の曲率半径が操縦可能部位の長さに沿って遠位方向に小さくなるように構成される。
[00031]幾つかの実施形態では、アクチュエータは第1のねじのおねじ山と嵌合するめねじ山を含む。アクチュエータは第2のねじのおねじ山と嵌合する第2のめねじ山をさらに含むことができる。第1および第2のねじのねじ山と、アクチュエータの第1および第2のめねじ山は反対向きであることができる。
[00033]幾つかの実施形態では、第1のねじは第2のねじの少なくとも1つの要素によって回転を抑止される。第1のねじは内側ねじであることができ、その内側ねじは、第2のねじの内側面の少なくとも1つの特徴部と整合する少なくとも1つの特徴部を有することができ、その整合する特徴部は内側ねじの回転を抑止する。
[00035]開示の一態様は、互いに反対向きの第1および第2のらせんねじ山をそれぞれ有する第1および第2のねじと、使用者によって操作されるように適合された外側面を有し、第1および第2のねじと動作可能に連絡するアクチュエータであって、その操作によって第1のねじの第1の方向への軸方向移動がもたらされ、第2のねじの第1の方向と反対の第2の方向への軸方向移動がもたらされるアクチュエータとを備えるハンドル部位を備える操向アセンブリである。
[00093]その内部で浮動ライナが浮動する外部構造は適当などのような管状部材であってもよい。例えば、外部構造はカテーテル、案内器具、操縦可能な器具などであることができる。幾つかの実施形態では、外部構造は中立的な湾曲の選択性を有しており、操縦するようには意図されていない。この実施形態では、外部構造によって軸方向および径方向の剛性が与えられ、それによってよじれが起こりにくくされる一方、浮動ライナも潤滑をもたらしつつ、外部構造によってよじれの発生を抑え込まれる。
[000182]この実施形態では、内側シャフトの湾曲面は図47Bではページ面である。この実施形態(および本明細書のそれ以外のもの)における湾曲面は背骨部、長手方向軸および選択的湾曲軸を含む平面である。背骨部は図47Bのシャフトの頂部を通って延びる(ただし、幾つかの実施形態では背骨部自体は必ずしも直線的な「軸」である必要はない。例えば、背骨部は、「軸」であるシャフトの長手方向軸と平行をなす正中線を有することができる)。選択的湾曲軸はページ面内にあり、図47Bのシャフトの底部を通って延びる。圧縮力がかかると、シャフトは湾曲面内をページ下方に湾曲する。湾曲したとき、背骨部、長手方向軸および選択的湾曲軸は湾曲面内にとどまる。セクション473とセクション472の間の継ぎ目に関しては、セクション473の最遠位位置は湾曲面内の背骨部にある。セクション472の最近位位置は選択的湾曲軸沿いにある。したがって、デュロメータ値が高めの材料の最遠位位置は背骨部沿いにあり、デュロメータ値が比較的低めの材料の最近位位置は選択的湾曲軸沿いにある。上述の通り、長手方向軸に対して垂直な横断面のシャフトの平均デュロメータ値はセクション472の最近位位置からセクション473の最遠位位置まで連続的に変化する。
[000184]内側部材は操縦可能部位の近位にある近位部474を含む。近位部474は操縦可能部位よりも全体に剛性が高い。幾つかの実施形態では、近位部474は、ナイロンまたはベスタミドのようなポリアミドである。図47Eは近位部474の(図47Aの)F−F横断面を示している。
[000187]図47Fは図47Aの器具の遠位端のJ−J断面を示している。コイル475の両端は、ベスタミドなどの薄いポリアミドに埋め込まれており、両端の遠位に対しては図47Eでは478の符号が与えられている。補強部材477も見ることができ、その遠位端は器具の遠位端の近位にある。内側ライナ476は器具の遠位端まで余すところなく延びる。
[000199]上述の図39から41までは、操向可能な医療器具の内側シャフトを外側シャフトに対して軸方向に移動させて、操向可能部位の湾曲をもたらすように適合されたコントローラの例示的な実施形態を示している。図39から41までのコントローラは、一方のシャフトはハンドルグリップに対して回転方向にも軸方向にも係留されるように設計され、他方のシャフトはハンドルに対して回転方向に係留されるが、軸方向には移動できるように適合された設計とされる。とりわけ、外側シースの近位係留点は回転方向にも軸方向にも固定される。この構成は、操向が単方向に限られており、内側シャフトと外側シャフトの間の間隙を最小化することが望ましい場合には特に有利である。そのような構成では、内側シャフトが引かれて引張力を与えられると、外側シャフトには圧縮力が加わる。それによって外側シャフトは直径が拡張され、内側シャフトは直径が縮小される。そのため、内側シャフトと外側シャフトの間隙の許容差を最小化することができて、2つのシャフトの間に生じる摩擦は最小化される。
Claims (10)
- 操向可能な医療器具を操向するための操向アセンブリであって、
操向可能な医療器具に固定されたハンドル部位を備えており、前記操向可能な医療器具は第1の管状部材および第2の管状部材を有し、前記ハンドル部位が、
らせんねじ山を有する第1のねじおよびらせんねじ山を有する第2のねじであって、第1のねじは前記第1の管状部材と動作可能に連結され、第2のねじは前記第2の管状部材と動作可能に連結される第1および第2のねじと、
使用者によって操作されるように適合された外側面を有し、前記第1および前記第2のねじと動作可能に連絡するアクチュエータであって、前記アクチュエータの操作によって前記第1のねじおよび前記第1の管状部材の第1の方向への軸方向移動がもたらされ、前記第2のねじおよび前記第2の管状部材の前記第1の方向と反対の第2の方向への軸方向移動がもたらされるアクチュエータとを備え、
前記第2のねじが前記第1のねじの中にあり、前記第1の管状部材が前記第2の管状部材の中に配設され、
前記軸方向移動が前記第1の管状部材および前記第2の管状部材の1つに引張力を与え、前記第1の管状部材および前記第2の管状部材の他方に圧縮力を与えて前記医療器具の操向可能部位を操向する操向アセンブリ。 - 前記第1の管状部材が前記第2の管状部材よりもさらに近位に延びる、請求項1に記載の操向アセンブリ。
- 前記アクチュエータの操作が前記第1のねじおよび前記第1の管状部材の近位への移動と、前記第2のねじおよび前記第2の管状部材の遠位への移動をもたらす、請求項1に記載の操向アセンブリ。
- 前記アクチュエータが前記第1のねじの前記らせんねじ山と嵌合する第1のめねじ山を含む、請求項1に記載の操向アセンブリ。
- 前記アクチュエータが、前記第2のねじの前記らせんねじ山と嵌合する第2のめねじ山をさらに備える、請求項4に記載の操向アセンブリ。
- 前記第1のねじの前記らせんねじ山および前記第2のねじの前記らせんねじ山と、前記アクチュエータの前記第1のめねじ山および前記第2のめねじ山と、が反対向きである、請求項5に記載の操向アセンブリ。
- 前記第1のねじの前記らせんねじ山および前記第2のねじの前記らせんねじ山が反対向きである、請求項1に記載の操向アセンブリ。
- 操向可能な医療器具を操向するための操向アセンブリであって、
操向可能な医療器具に固定されたハンドル部位を備えており、前記操向可能な医療器具は第1の管状部材および第2の管状部材を有し、前記ハンドル部位が、
らせんねじ山を有する第1のねじおよびらせんねじ山を有する第2のねじであって、第1のねじは前記第1の管状部材と動作可能に連結され、第2のねじは前記第2の管状部材と動作可能に連結される第1および第2のねじと、
使用者によって操作されるように適合された外側面を有し、前記第1および前記第2のねじと動作可能に連絡するアクチュエータであって、前記アクチュエータの操作によって前記第1のねじおよび前記第1の管状部材の第1の方向への軸方向移動がもたらされ、前記第2のねじおよび前記第2の管状部材の前記第1の方向と反対の第2の方向への軸方向移動がもたらされるアクチュエータとを備え、
前記軸方向移動が前記第1の管状部材および前記第2の管状部材の1つに引張力を与え、前記第1の管状部材および前記第2の管状部材の他方に圧縮力を与えて前記医療器具の操向可能部位を操向し、
前記第2のねじが内側ねじであり、前記内側ねじが、前記第1のねじの内側面の少なくとも1つの特徴部と整合する少なくとも1つの特徴部を有し、前記整合する特徴部が前記内側ねじの回転を抑止する、操向アセンブリ。 - 操向可能な医療器具を操向するための操向アセンブリであって、
操向可能な医療器具に固定されたハンドル部位を備えており、前記操向可能な医療器具は第1の管状部材および第2の管状部材を有し、前記ハンドル部位が、
らせんねじ山を有する第1のねじおよびらせんねじ山を有する第2のねじであって、第1のねじは前記第1の管状部材と動作可能に連結され、第2のねじは前記第2の管状部材と動作可能に連結される第1および第2のねじと、
使用者によって操作されるように適合された外側面を有し、前記第1および前記第2のねじと動作可能に連絡するアクチュエータであって、前記アクチュエータの操作によって前記第1のねじおよび前記第1の管状部材の第1の方向への軸方向移動がもたらされ、前記第2のねじおよび前記第2の管状部材の前記第1の方向と反対の第2の方向への軸方向移動がもたらされるアクチュエータとを備え、
前記軸方向移動が前記第1の管状部材および前記第2の管状部材の1つに引張力を与え、前記第1の管状部材および前記第2の管状部材の他方に圧縮力を与えて前記医療器具の操向可能部位を操向し、
前記アクチュエータが外側ねじ駆動ナットのねじ山および内側ねじ駆動ナットのねじ山を含み、前記内側ねじ駆動ナットの前記ねじ山が前記外側ねじ駆動ナットの前記ねじ山の中にある、操向アセンブリ。 - 互いに反対向きの第1および第2のらせんねじ山をそれぞれ有する第1および第2のねじと、
使用者によって操作されるように適合された外側面を有し、前記第1および第2のねじと動作可能に連絡するアクチュエータであって、前記アクチュエータの操作によって前記第1のねじ、および、前記第1のねじと動作可能に連結される、医療器具の第1の管状部材、の第1の方向への軸方向移動がもたらされ、前記第2のねじ、および、前記第2のねじと動作可能に連結される、前記医療器具の第2の管状部材、の前記第1の方向と反対の第2の方向への軸方向移動がもたらされるアクチュエータと
を備えるハンドル部位を備え、
前記第2のねじが前記第1のねじの中にあり、前記第1の管状部材が前記第2の管状部材の中に配設される
操向アセンブリ。
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| US62/252,970 | 2015-11-09 | ||
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2016
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- 2016-11-08 CN CN201680074479.0A patent/CN108366715A/zh active Pending
- 2016-11-08 CA CA3003045A patent/CA3003045A1/en not_active Abandoned
- 2016-11-08 HK HK18112667.7A patent/HK1253371A1/zh unknown
- 2016-11-08 AU AU2016354143A patent/AU2016354143A1/en not_active Abandoned
- 2016-11-08 WO PCT/US2016/060908 patent/WO2017083257A1/en not_active Ceased
- 2016-11-08 US US15/769,354 patent/US10933221B2/en active Active
- 2016-11-08 EP EP16864833.5A patent/EP3373794B1/en active Active
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| US10933221B2 (en) | 2021-03-02 |
| AU2016354143A1 (en) | 2018-05-10 |
| HK1253371A1 (zh) | 2019-06-14 |
| JP2019502420A (ja) | 2019-01-31 |
| CA3003045A1 (en) | 2017-05-18 |
| EP3373794A4 (en) | 2019-07-03 |
| WO2017083257A1 (en) | 2017-05-18 |
| US20180296798A1 (en) | 2018-10-18 |
| EP3373794B1 (en) | 2022-01-05 |
| CN108366715A (zh) | 2018-08-03 |
| EP3373794A1 (en) | 2018-09-19 |
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