JP6466499B2 - 高血圧症を治療するための下大静脈及び/又は腹大動脈内若しくはその近くの神経を標的とするアブレーション - Google Patents
高血圧症を治療するための下大静脈及び/又は腹大動脈内若しくはその近くの神経を標的とするアブレーション Download PDFInfo
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- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/002—Irrigation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M2025/0183—Rapid exchange or monorail catheters
Description
本出願は、参照により本明細書に組み込まれる2012年5月9日に出願された米国特許仮出願第61/644,724号の利益を主張するものである。
本発明は、下大静脈及び/又は腹大動脈内若しくはその近くの特定の標的位置で腎作用と関連した神経の標的アブレーションによって高血圧症やその他の病状を治療する方法及びカテーテルに関する。更に、方法で使用される特殊なカテーテルが開示される。
(1) 患者を治療する方法であって、
患者の身体にアブレーションカテーテルを挿入することと、
腎動脈と腹大動脈の交差部分又はその近くの標的位置で組織を切除して、前記腎動脈を除神経することと、を含む方法。
(2) 前記標的位置が、前記腹大動脈内の、前記腹大動脈と左腎動脈の上位接続部の近くである、実施態様1に記載の方法。
(3) 前記標的位置が、前記腹大動脈内の、前記腹大動脈と右腎動脈の上位接続部の近くである、実施態様1に記載の方法。
(4) 前記標的位置が、前記腹大動脈内の、前記腹大動脈と右腎動脈の小孔の近くである、実施態様1に記載の方法。
(5) 前記標的位置が、前記腹大動脈内の、前記腹大動脈と左腎動脈の小孔の近くである、実施態様1に記載の方法。
患者の下大静脈にアブレーションカテーテルを挿入することと、
前記下大静脈内の、右腎静脈が前記下大静脈から分岐する位置の近くの標的位置で組織を切除して、腎動脈を除神経することと、を含む方法。
(7) 前記標的位置が、前記下大静脈と前記右腎静脈の小孔の近くである、実施態様6に記載の方法。
(8) 患者を治療するための方法であって、
患者の左腎静脈にアブレーションカテーテルを挿入することと、
左腎動脈が腹大動脈から分岐する接続部の上を前記左腎静脈が横切る前記左腎静脈内の標的位置で組織を切除して、前記腎動脈を除神経することと、を含む方法。
(9) 前記下大静脈内の前記標的位置が、前記右腎動脈と前記腹大動脈との間の上位接続部に空間的に最も近い位置である、実施態様6に記載の方法。
(10) 前記左腎静脈内の前記標的位置が、前記左腎動脈と前記腹大動脈との間の上位接続部に空間的に最も近い位置である、実施態様8に記載の方法。
(12) 前記アブレーションカテーテルが、レーザー・エネルギー、マイクロ波エネルギー、極低温冷却、高周波エネルギー又は超音波エネルギーを使用して組織を切除することができる、実施態様1、6及び8に記載の方法。
(13) 前記電極が、前記腎動脈の管腔の内側を覆う内皮細胞への損傷を軽減するために灌注される、実施態様11に記載の方法。
(14) 前記高周波アブレーションカテーテルが、冷却流体が中を通って流れることができる複数の孔を有する、実施態様13に記載の方法。
(15) 前記標的位置で切除する前記アブレーションカテーテルが、遠位端に配置されたアブレーション要素をそれぞれ有する複数の突起を有する、実施態様1、6及び8に記載の方法。
(17) 前記突起が、ニチノールで作製され、送達シース内に拘束されたときに実質的に線形になるように設計された、実施態様15に記載の方法。
(18) 前記アブレーションカテーテルが、アブレーション要素と、前記標的位置の近くの血管内に配置され前記アブレーション要素を安定化させる安定化部材とを更に含む、実施態様1、6及び8に記載の方法。
(19) 前記安定化部材が、膨張式バルーンである、実施態様18に記載の方法。
(20) 前記安定化部材が、ガイドワイヤで前記血管内にガイドされる、実施態様18に記載の方法。
複数の突起が上に配置された遠位先端を有し、各突起が自由遠位端を有する細長い管状本体と、
各突起の前記自由遠位端上に配置されたアブレーション要素と、を有する装置。
(22) 前記アブレーション要素が、高周波電極である、実施態様21に記載の装置。
(23) 前記突起が、前記細長い本体の長手方向軸に近づきその後遠ざかって湾曲するs字形である、実施態様21に記載の装置。
(24) 各突起は、送達シース内に拘束されたときに実質的にまっすぐになることができ、前記送達シース内で拘束されなくなったときにs字形に戻る形状記憶材料で構成される、実施態様23に記載の装置。
(25) 前記形状記憶材料が、ニチノールである、実施態様24に記載の装置。
(27) 前記安定化要素が、バルーンである、実施態様26に記載の装置。
(28) 前記安定化要素が、ガイドワイヤによって前記血管内に先行される、実施態様26に記載の装置。
(29) 腹大動脈、下大静脈及び/又は左腎静脈内の標的位置で組織を切除する装置であって、
近位端と遠位端を有する細長い管状シャフトと、
概略環状部材が上に配置された遠位アセンブリと、
前記概略環状遠位部材上に配置された少なくとも1つのアブレーション要素と、
前記細長い管状シャフトの前記近位端に取り付けられた制御ハンドルと、を有する装置。
(30) 前記アブレーション要素が、高周波電極である、実施態様29に記載の装置。
(32) 前記概略環状部材が、拘束されないときに前記概略環状部材を形成する形状記憶材料を更に含む、実施態様29に記載の装置。
(33) 前記形状記憶材料が、ニチノールである、実施態様32に記載の装置。
(34) 前記細長いシャフトと前記遠位アセンブリ内に延在する収縮ワイヤを更に含み、前記制御ハンドルが、前記収縮ワイヤを作動させて前記概略環状形態を収縮させるように構成された第1の制御部材を含む、実施態様29に記載の装置。
(35) 前記細長いシャフト内に延在する撓みワイヤを更に有し、前記制御ハンドルが、前記撓みワイヤを作動させて前記細長い本体の一部分を撓ませるように構成された第2の制御部材を有する、実施態様29に記載の装置。
(37) 前記高周波電極が、6個のリング電極を含む、実施態様29に記載の装置。
(38) 前記遠位アセンブリが、複数の位置センサを含む、実施態様29に記載の装置。
(39) 前記複数の位置センサが、最遠位電極の遠位端の近くに配置された遠位センサ、中間電極の近くに配置された中央センサ、及び前記遠位アセンブリの遠位先端の近くの近位センサを含む、実施態様38に記載の装置。
(40) 前記概略環状部材が、収縮されないときに半円となり、より小さい環形状に収縮することができる、少なくとも180度の範囲を定める円弧である、実施態様39に記載の装置。
Claims (11)
- 腹大動脈、下大静脈及び/又は左腎静脈内の標的位置で組織を切除する装置であって、
近位端と遠位端を有する細長い管状シャフトと、
概略環状部材を含む遠位アセンブリと、
前記概略環状部材上に配置された少なくとも1つのアブレーション要素と、
前記細長い管状シャフトの前記近位端に取り付けられた制御ハンドルと、を備え、
前記概略環状部材は、前記シャフトの長手方向軸上に湾曲中心を有するように設計され、
前記概略環状部材は、収縮されないときに半円となり、より小さい環形状に収縮することができる、少なくとも180度の範囲を定める円弧であり、収縮されないときに前記概略環状部材の近位端から遠位端までの前記長手方向軸に沿った距離が、5〜11mmである、装置。 - 前記アブレーション要素が、高周波電極である、請求項1に記載の装置。
- 前記高周波電極が、灌注される、請求項2に記載の装置。
- 前記概略環状部材は、送達シース内に拘束されることができ、前記概略環状部材が、前記送達シース内に拘束されないときに前記概略環状部材を形成する形状記憶材料を更に含む、請求項1に記載の装置。
- 前記形状記憶材料が、ニチノールである、請求項4に記載の装置。
- 前記細長いシャフトと前記遠位アセンブリの中を延びる収縮ワイヤを更に含み、前記制御ハンドルが、前記収縮ワイヤを作動させて前記概略環状形態を収縮させるように構成された第1の制御部材を含む、請求項1に記載の装置。
- 前記細長いシャフトの中を延びる撓みワイヤを更に含み、前記制御ハンドルが、前記撓みワイヤを作動させて前記細長い本体の一部分を撓ませるように構成された第2の制御部材を含む、請求項1に記載の装置。
- 前記少なくとも1つの高周波電極が、温度の高さを示す信号を提供することができる電気リードに接続された、請求項2に記載の装置。
- 前記高周波電極が、6個のリング電極を含む、請求項2に記載の装置。
- 前記遠位アセンブリが、複数の位置センサを含む、請求項9に記載の装置。
- 前記複数の位置センサが、最遠位電極の遠位端の近くに配置された遠位センサ、中間電極の近くに配置された中央センサ、及び前記遠位アセンブリの遠位先端の近くの近位センサを含む、請求項10に記載の装置。
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US61/644,724 | 2012-05-09 | ||
US13/827,114 US9439722B2 (en) | 2012-05-09 | 2013-03-14 | Ablation targeting nerves in or near the inferior vena cava and/or abdominal aorta for treatment of hypertension |
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EP2662048B1 (en) | 2020-01-08 |
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US11058485B2 (en) | 2021-07-13 |
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CN103385754B (zh) | 2017-09-29 |
US9439722B2 (en) | 2016-09-13 |
JP6165498B2 (ja) | 2017-07-19 |
CA2815317A1 (en) | 2013-11-09 |
US20200038105A1 (en) | 2020-02-06 |
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