JP7278954B2 - 線形作動可能なカテーテル、システム、および方法 - Google Patents
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- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
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- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B2017/22014—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire
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- A61B2017/22072—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an instrument channel, e.g. for replacing one instrument by the other
- A61B2017/22074—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an instrument channel, e.g. for replacing one instrument by the other the instrument being only slidable in a channel, e.g. advancing optical fibre through a channel
- A61B2017/22075—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an instrument channel, e.g. for replacing one instrument by the other the instrument being only slidable in a channel, e.g. advancing optical fibre through a channel with motorized advancing or retracting means
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Description
[0001]本出願は、2016年11月23日に出願された、「CATHETER WITH RETRACTABLE SHEATH AND METHODS THEREOF」と題する、米国特許出願第15/360,834号の利益を主張し、その全体が本明細書に参照として組み込まれる。
[0038]アテローム性動脈硬化症の外科手術は、1つまたは複数の管腔内デバイスを血管内病変に進めて血管内病変を修復することを伴い得る。例えば、血管形成術またはアテローム切除術は、血管内病変の修復のために、管腔内デバイスをガイドワイヤ上で血管内病変に進めることを伴い得る。しかし、管腔内デバイスをガイドワイヤ上で血管内病変まで進めることにより、特に管腔内デバイスの先端部が引っ掛かりガイドワイヤから外れ得る蛇行性の解剖学的組織においては、デバイスの複雑さから外科合併症をもたらし得る。本明細書では、いくつかの実施形態において、上記内容に対処する線形作動可能なカテーテル、システム、および方法が提供される。
本発明は、以下の態様を含む。
1. カテーテルアセンブリであって、
伸長および後退を含む線形作動を行うように構成されたコアワイヤと、
前記コアワイヤの近位端部分の周囲にあり、前記コアワイヤの前記近位端部分の横波生成振動エネルギーを制振させるように構成されている制振機構と、を備え、
前記コアワイヤの近位端は、前記コアワイヤに振動エネルギーを与えるための超音波発生機構に結合するように構成された音波コネクタを含み、
前記コアワイヤの遠位端は、血管内病変を振動エネルギーで修復するように構成され、
前記制振機構は、
前記コアワイヤの周囲に圧縮力を及ぼすように構成されたガスケット装置、および、
前記ガスケットシステムを前記カテーテルアセンブリの制振機構孔内に保持するための保持具を含み、前記圧縮力は、前記制振機構を通る前記コアワイヤの前記伸長または後退を制限することなく、前記コアワイヤの前記近位端部分の横波生成振動エネルギーを制振させるのに十分である、
カテーテルアセンブリ。
2. 前記コアワイヤの完全に後退した状態から前記コアワイヤを伸長させ、
前記コアワイヤの完全に伸長した状態から前記コアワイヤを後退させるように構成された線形作動機構を更に備え、
前記完全に伸長した状態では、前記コアワイヤの前記遠位端と、前記コアワイヤの周囲のシースの遠位端から約20cmに至るまでの前記コアワイヤの作業長とが露出されており、
前記完全に後退した状態では、少なくとも前記コアワイヤの前記遠位端に至るまでの前記コアワイヤの前記作業長は前記シース内に隠されている、
1.に記載のカテーテルアセンブリ。
3. 前記ガスケットシステムの中心が、前記コアワイヤが最小限の横波生成振動エネルギーを受ける場所で前記コアワイヤ上に配置され、それにより摩擦熱が低減されヒートシンクが不要になる、
1.または2.に記載のカテーテルアセンブリ。
4. 前記ガスケットシステムは、軸方向および半径方向に圧縮される複数のOリングを前記制振機構孔内に含み、前記コアワイヤの周囲に前記圧縮力を提供する、
1.から3.のいずれかに記載のカテーテルアセンブリ。
5. 前記複数のOリングは、
前記制振機構孔の遠位端と、前記制振機構孔の近位端に固定された前記保持具とによって、前記制振機構孔内で軸方向に圧縮され、
前記制振機構孔の内壁によって半径方向に圧縮されている、
4.に記載のカテーテルアセンブリ。
6. 前記カテーテルアセンブリの洗浄ポートの中に洗浄剤を注入するように構成された注入器を更に備え、
前記コアワイヤの周囲の前記圧縮力は更に、前記制振機構を通る前記コアワイヤの前記伸長または後退を制限することなく、前記洗浄剤の洗浄逆流を防止するのに十分である、
請求項1.から5.のいずれかに記載のカテーテルアセンブリ。
7. 前記音波コネクタと前記保持具との間において前記コアワイヤの前記近位端部分の露出部分の周囲にポリマー製スリーブを更に備える、
1.から6.のいずれかに記載のカテーテルアセンブリ。
8. 前記ポリマー製スリーブは更に前記制振機構内の前記コアワイヤの前記近位端部分の周囲にあり、
前記ポリマー製スリーブは、前記制振機構を通る前記コアワイヤの前記伸長および後退を容易にするように、潤滑性を有する表面を含んでいる、
7.に記載のカテーテルアセンブリ。
9. 前記コアワイヤの前記近位端に、超音波発生機構の一部を形成して振動エネルギーを前記コアワイヤに与える超音波トランスデューサを更に備える、
1.から8.のいずれかに記載のカテーテルアセンブリ。
10. カテーテルアセンブリと、超音波エネルギー発生機構と、を備えるシステムであって、
前記カテーテルアセンブリは、
線形作動機構と、
前記線形作動機構により線形作動するように構成されたコアワイヤであって、
前記コアワイヤの近位端は、与えられた振動エネルギーを受けるように構成された音波コネクタを含み、
前記コアワイヤの遠位端は、血管内病変を振動エネルギーで修復するように構成された先端部材を含む、コアワイヤと、
前記コアワイヤの近位端部分の周囲にあり、前記コアワイヤの前記近位端部分の横波生成振動エネルギーを制振させるように構成されている制振機構と、を含み、
前記制振機構は、
前記コアワイヤの周囲に圧縮力を及ぼすように構成されたガスケットシステム、および
前記ガスケットシステムを前記カテーテルアセンブリの制振機構孔内に保持するための保持ワッシャを含み、
前記圧縮力は、前記制振機構を通る前記コアワイヤの線形作動を制限することなく、前記コアワイヤの近位端部分の横波生成振動エネルギーを制振させるのに十分である、制振機構と、
を含み、
前記超音波エネルギー発生機構は、
超音波発生器と、
超音波トランスデューサと
を含み、前記超音波トランスデューサは、前記コアワイヤの前記近位端において前記音波コネクタに振動エネルギーを与えるように構成されている、
システム。
11. 前記線形作動機構は、前記コアワイヤの完全に後退した状態から前記コアワイヤを伸長させ、前記コアワイヤの完全に伸長した状態から前記コアワイヤを後退させるように構成され、
前記完全に伸長した状態では、前記先端部材と、前記コアワイヤの周囲のシースの遠位端から約20cmに至るまでの前記コアワイヤの作業長とが露出され、
前記完全に後退した状態では、少なくとも前記先端部材に至るまでの前記コアワイヤの前記作業長は前記シース内に隠されている、
10.に記載のシステム。
12. 前記ガスケットシステムは、前記制振機構孔内に軸方向および半径方向に圧縮される複数のOリングを含んで、前記コアワイヤの周囲に前記圧縮力を提供し、
前記圧縮力は更に、前記制振機構を通る前記コアワイヤの前記伸長または後退を制限することなく、洗浄剤の洗浄逆流を防止するのに十分である、
10.または11.に記載のシステム。
13. 前記複数のOリングは、前記制振機構孔の遠位端と前記制振機構孔の近位端に固定された前記保持ワッシャとによって、前記制振機構孔内で軸方向に圧縮されており、
前記複数のOリングは前記制振機構孔の内壁によって半径方向に圧縮されている、
12.に記載のシステム。
14. 前記制振機構内の前記コアワイヤの前記近位端部分の周囲にポリマー製スリーブを更に備え、前記ポリマー製スリーブは、前記制振機構を通る前記コアワイヤの最大限の前記線形作動を容易にするための潤滑性を有する表面を含む、
10.から13.のいずれかに記載のシステム。
15. フットスイッチと、前記超音波発生器および前記超音波トランスデューサを含む前記超音波エネルギー発生機構とを含むコンソールを更に備え、前記フットスイッチは、前記超音波エネルギー発生機構を起動および停止するように構成されている、
10.から14.のいずれかに記載のシステム。
16. フットスイッチと、前記超音波エネルギー発生機構の前記超音波発生器とを含むコンソールを更に備え、
前記カテーテルアセンブリは更に前記超音波エネルギー発生機構の前記超音波トランスデューサを含み、
前記フットスイッチは前記超音波エネルギー発生機構を起動および停止するように構成されている、
10.から14.のいずれかに記載のシステム。
17. 前記超音波トランスデューサは前記線形作動機構によって線形作動するように構成されており、
前記超音波トランスデューサの前記線形作動は前記コアワイヤの前記線形作動と同期しており、それにより前記音波コネクタを介した前記超音波トランスデューサと前記コアワイヤとの間の音波接続が維持されている、
16.に記載のシステム。
18. 制振機構孔を含むカートリッジを型成形するステップと、
コアワイヤを、前記カートリッジの回転軸と一致する前記制振機構孔の中心を通して配置するステップと、
複数のOリングを前記コアワイヤの周囲の前記制振機構孔内に配置するステップと、
ワッシャを前記制振機構孔の近位端に固定して、前記コアワイヤの周囲に制振機構を形成するステップと、を含み、
前記ワッシャを前記制振機構孔の前記近位端に固定することによって、前記制振機構孔の遠位端に対して前記複数のOリングを軸方向に圧縮させ、かつ前記コアワイヤに対向する、前記制振機構孔の内壁に対して前記複数のOリングを半径方向に圧縮させることによる半径方向の圧縮力を、前記コアワイヤ上に発生させ、
前記半径方向の圧縮力は、前記制振機構を通る前記コアワイヤの線形作動を制限することなく、前記コアワイヤの近位端部分に与えられる横波生成振動エネルギーを制振させるのに十分である、
方法。
19. 前記コアワイヤをポリマー製スリーブ内に配置するステップと、
前記制振機構孔の中心を通して前記コアワイヤを配置する前に、前記ポリマー製スリーブを均一に加熱して、前記ポリマー製スリーブを前記コアワイヤの周囲に収縮させるステップと、を更に含み、前記ポリマー製スリーブは、前記制振機構を通る前記コアワイヤの最大限の前記線形作動を容易にするための潤滑性ポリマーで形成されている、
18.に記載の方法。
20. カテーテルアセンブリのハウジングを型成形するステップと、
前記制振機構を有する前記カートリッジを、前記カテーテルアセンブリの前記ハウジング内の前記コアワイヤの周囲に配置するステップと、
前記コアワイヤを前記カテーテルアセンブリの線形作動機構に接続し、それにより前記コアワイヤを前記制振機構を介して前記線形作動させるように構成するステップと、
を更に含む、18.または19.に記載の方法。
Claims (5)
- カテーテルアセンブリであって、
管腔を有するシースと、
前記シースの管腔内に配置され、遠位方向の伸長および近位方向の後退を含む線形作動を行うように構成されたコアワイヤと、
前記コアワイヤの近位端部分の周囲にあり、前記コアワイヤの前記近位端部分の横波生成振動エネルギーを制振させるように構成されている制振機構と、を備え、
前記コアワイヤの近位端は、前記コアワイヤに振動エネルギーを与えるための超音波発生機構に結合するように構成された音波コネクタを含み、
前記コアワイヤの遠位端は、血管内病変を振動エネルギーで修復するように構成され、
前記制振機構は、
前記コアワイヤを取り囲む複数のОリングを備えるガスケットシステム、および、
前記複数のОリングを前記カテーテルアセンブリの制振機構孔内に、前記複数のОリングを軸方向に圧縮するように保持するための保持具を含み、前記制振機構孔の内径は、前記保持具による軸方向の圧縮によって生じる前記複数のОリングの半径方向の拡張を制限するように決められ、これにより、前記複数のОリングは、前記コアワイヤの前記近位端に対して、前記制振機構を通る前記コアワイヤの前記遠位方向の伸長または前記近位方向の後退を制限することなく、前記コアワイヤの前記近位端部分の横波生成振動エネルギーを制振させるのに十分な半径方向の圧縮力を加えるように構成されており、
前記カテーテルアセンブリは、
前記コアワイヤの完全に近位方向に後退した状態から前記コアワイヤを遠位方向に伸長させ、
前記コアワイヤの完全に遠位方向に伸長した状態から前記コアワイヤを近位方向に後退させるように構成された線形作動機構を更に備え、
前記完全に遠位方向に伸長した状態では、前記コアワイヤの前記遠位端と、前記コアワイヤが配置される管腔を有する前記シースの遠位端から約20cmに至るまでの前記コアワイヤの作業長とが露出されており、
前記完全に近位方向に後退した状態では、少なくとも前記コアワイヤの前記遠位端に至るまでの前記コアワイヤの前記作業長は前記シース内に隠されている、
カテーテルアセンブリ。 - 前記カテーテルアセンブリの洗浄ポートの中に洗浄剤を注入するように構成された注入器を更に備え、
前記コアワイヤの周囲の前記圧縮力は更に、前記制振機構を通る前記コアワイヤの前記遠位方向の伸長または近位方向の後退を制限することなく、前記洗浄剤の洗浄逆流を防止するのに十分である、
請求項1に記載のカテーテルアセンブリ。 - 前記音波コネクタと前記保持具との間において前記コアワイヤの前記近位端部分の露出部分の周囲にポリマー製スリーブを更に備える、
請求項1または2に記載のカテーテルアセンブリ。 - 前記ポリマー製スリーブは更に前記制振機構孔内の前記コアワイヤの前記近位端部分の周囲にあり、
前記ポリマー製スリーブは、前記制振機構を通る前記コアワイヤの前記遠位方向の伸長および近位方向の後退を容易にするように、潤滑性を有する表面を含んでいる、
請求項3に記載のカテーテルアセンブリ。 - 前記コアワイヤの前記近位端に、超音波発生機構の一部を形成して振動エネルギーを前記コアワイヤに与える超音波トランスデューサを更に備える、
請求項1から4のいずれか一項に記載のカテーテルアセンブリ。
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2016
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2017
- 2017-05-02 US US16/348,923 patent/US11712259B2/en active Active
- 2017-05-02 CN CN201780072386.9A patent/CN110022778B/zh active Active
- 2017-05-02 EP EP17874057.7A patent/EP3544520B1/en active Active
- 2017-05-02 WO PCT/US2017/030675 patent/WO2018097856A1/en unknown
- 2017-05-02 JP JP2019547570A patent/JP7278954B2/ja active Active
- 2017-11-06 WO PCT/US2017/060195 patent/WO2018097953A2/en active Application Filing
- 2017-11-06 US US16/462,260 patent/US11633206B2/en active Active
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2022
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WO2018097856A1 (en) | 2018-05-31 |
CN110022778A (zh) | 2019-07-16 |
WO2018097953A2 (en) | 2018-05-31 |
EP3544520A1 (en) | 2019-10-02 |
US20180140321A1 (en) | 2018-05-24 |
CN110022778B (zh) | 2022-12-06 |
JP7303341B2 (ja) | 2023-07-04 |
US11712259B2 (en) | 2023-08-01 |
US11633206B2 (en) | 2023-04-25 |
EP3544520B1 (en) | 2024-09-11 |
JP2019535482A (ja) | 2019-12-12 |
US20190365408A1 (en) | 2019-12-05 |
EP3544520A4 (en) | 2020-07-01 |
US20190262016A1 (en) | 2019-08-29 |
WO2018097953A3 (en) | 2019-05-31 |
JP2022081609A (ja) | 2022-05-31 |
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