JP2013521995A - 血管内組織の破壊 - Google Patents
血管内組織の破壊 Download PDFInfo
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Abstract
【選択図】図16
Description
[0004]本明細書において説明する流体送達手段は、アブレーション剤に加えて治療薬の送達に使用されることができる。1つのこのような治療薬は、治療後狭窄を最小限に抑えるために使用されうるタキソールである。昇圧剤もこのような方法で送達されることができる。
[0022]図21から24は、遠位送達領域内に組み込まれることが可能なシャトル弁に関する2つの変形形態を示す。図21および22の弁(図22は、図21のデバイスの一部分の拡大図である)は、弁の外側部材56上の1つまたは複数の開口52と、マスキング開口53を組み込んだ、外側部材56に対して軸方向に移動可能な内側部材55とを組み込む。開口52は、マスキング開口53より小さい。摺動する内側マスキング開口53が、開口52に隣接する位置に摺動されると、個々の開口52は、選択的に対象とされる。一構成では、部材55および56はそれぞれ、遠位端57および58で密封される。別法として、設計が、マスキング開口53の遠位にある管類の長さが、対象とされた開口の遠位にある開口52のすべてを覆うのに十分に長いようなものであるとき、他の部材に対して移動されるように適合された部材は、開放されたままにされることができる。内側部材55および外側部材56は、内側部材の外径と外側部材の内径が密接に一致するように構成され、それによって、最小の断面積および高い流体抵抗の環状領域が作り出される。これとは別に、またはこれに加えて、内側可動部材またはその区域は、加圧される間に発生する負荷下で拡張し、それによって環状の横断面を減少させ、それによって流体抵抗をさらに増加させるように設計されることができる。
図27から29の例に関する変形形態が図30から32に表されている。図30は、針の端部が送達区域66の内腔のまさに内部に維持された開構成のニードル弁を示す。図31では、弁は、示される制限的流体流れ横断面62の一区域によって部分的に閉鎖される。図32は、供給区域65の端部密封の近位面に当接するガイド69の遠位面によって完全に閉鎖された弁を示す。必要な場合、流体抵抗のさらなる増加は、エラストマーガイド69、または供給区域65上の端部密封の近位面に対して密封するガイド69に対するエラストマー遠位面(elastomeric distal face)を組み込むことによって、完全に閉鎖した位置で達成されることができる。ガイド69は、さらに、大きな流体流れ横断面63を作り出すために軽減されるエリア(relieved area)を組み込む。
Claims (64)
- 医用送達デバイスからの流体の送達を制御する方法であって、
複数の流体制御部を備える遠位送達領域を備える医療デバイスと、
前記複数の流体制御部を通る流体の流れを選択的に調整するステップと
を含む方法。 - 選択的に調整するステップが、第2の流体制御部から送達される前記流体を最小限に抑えながら前記流体が第1の流体制御部から送達されることを可能にするステップを含む、請求項1に記載の方法。
- 選択的に調整するステップが、第2の流体制御部を通る前記流体の流れを増加させることなく、第1の流体制御部からの前記流体の流れを増加させるステップを含む、請求項1に記載の方法。
- 選択的に調整するステップが、第1の流体制御部からの前記流体流れを第1の量だけ増加させるステップと、第2の流体制御部からの前記流体の流れを第2の量だけ増加させるステップとを含み、前記第1の量が前記第2の量と異なる、請求項1に記載の方法。
- 選択的に調整するステップが、第2の流体制御部を閉構成から開構成に移らせることなく、第1の流体制御部を閉構成から開構成に移らせるステップを含む、請求項1に記載の方法。
- 前記第1の制御部を前記開構成に移らせるステップが、第1の開口をその中に有する第1の弁要素を、第2の開口をその中に有する第2の弁要素に対して、前記複数の開口が整合するまで移動させるステップを含む、請求項5に記載の方法。
- 前記第1の流体制御部を前記開構成に移らせるステップによって、前記流体が前記第2の流体制御部から低速で流れ出しながら、前記流体が前記第1の制御部から高速で流れる、請求項5に記載の方法。
- 選択的に調整するステップが、前記流体を第1の流体制御部から高速で流れ出させるステップと、前記流体を第2の流体制御部から低速で流れ出させるステップとを含む、請求項1に記載の方法。
- 医療デバイスから送達される流体の量を調整する方法であって、
流体源と連通する流体制御部を備える遠位送達領域を備える医療デバイスであって、前記流体制御部が、第1の開口をその中に有する第1の制御要素と、第2の開口をその中に有する第2の制御要素とを備える、医療デバイスと、
前記遠位送達領域を患者内部の標的場所の近くに位置決めするステップと、
前記流体制御部を通る流体の流れを増加させるために前記複数の開口を移動させて整合させることによって前記流体制御部から放出される前記流体の量を調整するステップと
を含む方法。 - 前記調整するステップが、流体圧力源で生じる過渡性とは無関係に行われる、請求項9に記載の方法。
- 前記流体源が前記患者の外部に配置され、前記流体源において実質的に一定の圧力を維持するステップをさらに含む、請求項9に記載の方法。
- 放出される流体の量を調整するために前記流体制御部において流体速度を変化させるステップをさらに含む、請求項11に記載の方法。
- 放出される流体の量を調整するステップが、前記流体制御部からの前記流体の流れを減少させるために前記開口を移動させて整合しないようにするステップをさらに含む、請求項1に記載の方法。
- 前記第1の制御要素が第1の管状の部材を備え、前記第2の制御要素が、前記第1の管状の部材の内部に配置された第2の管状の部材を備え、前記開口を移動させて整合させるステップが、前記第1の管状の部材を前記第2の管状の部材に対して移動させ、それによって前記第1の開口を前記第2の開口に対して移動させるステップを含む、請求項1に記載の方法。
- 前記第1の管状の部材を前記第2の管状の部材に対して移動させるステップが、軸方向移動および回転運動のうちの少なくとも1つを含む、請求項14に記載の方法。
- 内腔周囲組織損傷の方法であって、
内腔壁に穴をあけることなく内腔内部に送達デバイスを位置決めするステップと、
前記送達デバイスから前記内腔壁を通して流体薬剤を送達するステップと、
前記内腔壁の周辺の組織を前記流体薬剤によって損傷するステップと
を含む方法。 - 前記内腔壁が内膜層を備え、前記損傷するステップが、前記内腔壁の前記内膜層の周辺の神経細胞を損傷するステップを含む、請求項16に記載の方法。
- 損傷するステップが、前記血管壁の前記内膜層の組織を最小限に損傷しながら神経細胞を損傷するステップを含む、請求項17に記載の方法。
- 前記内腔壁が内側層を備え、損傷するステップが、前記内側層内の組織を損傷するステップを含む、請求項17に記載の方法。
- 組織を損傷するステップが、前記内腔の内側層および外膜層内部に配置された神経細胞のうちの少なくとも1つにある細胞を損傷するステップを含む、請求項17に記載の方法。
- 前記内膜層からの半径方向距離が増加するにつれて、損傷断面積が増加する、請求項17に記載の方法。
- 前記送達デバイスが、第1の流体制御部と、第2の流体制御部とを備え、送達するステップが、第1の損傷領域を作り出すために前記第1の流体制御部から前記流体薬剤を送達するステップを含み、前記第2の流体制御部から前記流体薬剤を送達するステップが、第2の損傷領域を作り出し、前記第1の領域の一部分と前記第2の領域の一部分が重複する、請求項16に記載の方法。
- 損傷するステップが、前記流体の直接的な機械的相互作用によって組織を損傷するステップを含む、請求項16に記載の方法。
- 損傷するステップが、前記流体との化学的相互作用によって引き起こされる、請求項16に記載の方法。
- 前記流体が低張性である、請求項24に記載の方法。
- 前記流体が高張性である、請求項24に記載の方法。
- 前記流体が、組織との相互作用に際して自己発熱する、請求項24に記載の方法。
- 前記流体が、前記組織のpHと著しく異なるpHを有する、請求項24に記載の方法。
- 前記流体が、前記組織に有毒な物質を含む、請求項24に記載の方法。
- 前記流体が、特定の組織に有毒な物質を含む、請求項24に記載の方法。
- 前記流体が、前記組織との相互作用に際して有毒になる物質を含む、請求項24に記載の方法。
- 前記流体が、体外の源から送達されたエネルギーを吸収することが可能な物質を含む、請求項24に記載の方法。
- 前記送達デバイスから前記内腔壁を通して流体薬剤を送達するステップが、前記内腔の内膜層の周辺の神経組織に向けて前記流体薬剤を送達するステップを含む、請求項16に記載の方法。
- 損傷するステップが、腎動脈の内腔の周辺の腎神経組織を損傷するステップを含む、請求項16に記載の方法。
- 腎神経組織を損傷するステップによって、高血圧が低下する、請求項16に記載の方法。
- 患者の体内で流体を放出するための装置であって、
複数の流体制御部を備える遠位領域と、
前記遠位領域を貫通し、前記複数の流体制御部と流体連通する内腔であって、流体源と流体連通するように適合された内腔と
を備え、
前記複数の流体制御部のそれぞれが、前記内腔から前記複数の流体制御部の外部に放出される流体の量を調整するために選択的に対象指定可能であるように適合される、
細長い部材を備える、装置。 - 前記流体制御部が、閉構成と開構成とを有し、前記閉構成では、前記開構成時に比べて実質的に少量の流体が前記流体制御部から放出できる、請求項36に記載の装置。
- 実質的に少量とは、流体が実質的にないことである、請求項37に記載の装置。
- 前記開構成では、前記流体制御部が、前記流体を高速で放出するように適合される、請求項37に記載の装置。
- 前記遠位領域が、前記内腔と流体連通する複数の流体制御部を備え、各流体制御部が、開構成と閉構成とを有し、各流体制御部が、前記流体が高速で送達されるときに前記流体制御部から放出される流体の量を調整するように適合される、請求項36に記載の装置。
- 前記複数の流体制御部が、個々に開放されるように適合される、請求項40に記載の装置。
- 前記流体制御部が、実質的に一定の圧力に維持される流体源と流体連通するように適合される、請求項36に記載の装置。
- 前記流体制御部が、前記流体源が前記実質的に一定の圧力に維持される間に前記流体制御部から放出される流体の量を制御する、請求項42に記載の装置。
- 患者の体内で流体を制御可能に放出するための装置であって、
第1の開口をその中に有する第1の管状の要素と、
第2の開口をその中に有する第2の管状の要素であって、前記第1の管状の要素内部に配置され、前記第1の管状の要素に対して移動可能であり、流体源と流体連通するように適合された、第2の管状の要素を通る内腔を有する、第2の管状の要素と
を備え、
前記複数の開口が、流体が前記内腔から前記第1の開口および前記第2の開口を通過できる整合された構成を有する、装置。 - 前記複数の開口が、流体が前記複数の開口を高速で通過できる整合された構成を有する、請求項44に記載の装置。
- 第2の開口が、前記第1の開口の最大寸法より小さな最大寸法を有する、請求項44に記載の装置。
- 実質的に一定の圧力に維持される流体源をさらに備える、請求項44に記載の装置。
- 前記複数の開口が、それを通して流体を高速で放出するように適合される、請求項47に記載の装置。
- 前記複数の開口が、前記流体源が第1の送達周期中に実質的に一定の第1の圧力に維持されるとき、および前記流体源が第2の送達周期中に実質的に一定の第2の圧力に維持されるとき、流体が前記複数の開口を通過できる整合された構成を有し、前記第1の圧力と前記第2の圧力が異なる、請求項47に記載の装置。
- 前記第1の管状の要素が、前記第1の管状の要素が位置決めされる内腔壁と係合するように前記第1の管状の要素の少なくとも一部分が適合される変形した治療構成を有する、請求項44に記載の装置。
- 前記変形した治療構成が、略螺旋状の形状である、請求項50に記載の装置。
- 前記第1の管状の要素を変形させて前記内腔壁と接触させるように適合された拡張可能な要素をさらに備える、請求項50に記載の装置。
- 前記拡張可能な要素がバルーンを備える、請求項52に記載の装置。
- 前記拡張可能な要素が、前記第1の管状の要素を変形させて前記治療構成にするために前記第1の管状の要素に対して移動可能である、請求項52に記載の装置。
- 前記第1の開口と流体連通し、前記第1の開口から延びる穴あけ要素をさらに備え、前記穴あけ要素が、組織に穴をあけ、前記流体が前記開口からおよび前記穴あけ要素から流れることを可能にするように適合される、請求項44に記載の装置。
- 前記複数の開口が、前記複数の開口を通して流体が低速で流れることが可能であるように適合された整合しない構成を有する、請求項44に記載の装置。
- 患者の体内で流体を制御可能に放出するための装置であって、
遠位端と、近位端と、前記複数の端部の間にある治療部分とを備える細長い部材を備え、
前記治療部分が、それぞれ送達構成と治療構成とを有する複数の拡張可能な細長い要素を備え、
前記複数の拡張可能な細長い要素のそれぞれが流体制御部を備え、前記送達構成では、前記制御部が第1の方向を向き、前記治療構成では、前記制御部が、第1の方向と異なる第2の方向を向く、装置。 - 前記第2の方向が、前記細長い部材の長手方向軸と略直交する、請求項57に記載の装置。
- 前記第1の方向が、前記細長い部材の長手方向軸と略平行である、請求項57に記載の装置。
- 前記拡張可能な細長い要素が管状の要素であり、前記流体制御部が、前記管状の要素から区域を除去することによって提供される、請求項57に記載の装置。
- 前記流体制御部が、前記細長い要素の遠位端の近位にある、請求項57に記載の装置。
- 前記拡張可能な細長い要素が、前記治療構成において流体ポートの領域内で優先的に屈曲するように適合される、請求項57に記載の装置。
- 前記拡張可能な細長い要素が自己拡張型である、請求項57に記載の装置。
- 前記拡張可能な細長い要素が作動可能である、請求項57に記載の装置。
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US20170080184A1 (en) | 2017-03-23 |
WO2011119857A2 (en) | 2011-09-29 |
AU2011232335A1 (en) | 2012-10-11 |
AU2018201235A1 (en) | 2018-03-15 |
EP2550040A4 (en) | 2014-03-26 |
US8840601B2 (en) | 2014-09-23 |
CA2793737A1 (en) | 2011-09-29 |
EP2550040A2 (en) | 2013-01-30 |
US20110257622A1 (en) | 2011-10-20 |
AU2016203340A1 (en) | 2016-06-30 |
US20120116438A1 (en) | 2012-05-10 |
WO2011119857A3 (en) | 2012-04-19 |
CN102917748B (zh) | 2015-04-01 |
CN102917748A (zh) | 2013-02-06 |
AU2016203340B2 (en) | 2017-11-23 |
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