JP6590460B2 - 慢性疼痛の発痛源の同定及び治療のためのシステム - Google Patents
慢性疼痛の発痛源の同定及び治療のためのシステム Download PDFInfo
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Description
本発明は、2014年8月26日に出願された米国仮出願第62/041,798号に基づく優先権を主張する。当該出願は、全文を引用することを以って本明細書の一部となす。
Claims (21)
- 哺乳類の脳の神経刺激及び脳波モニタリングによって慢性疼痛に関連する神経経路を同定するためのシステムであって、
慢性疼痛の発痛源である疑いがある領域の近くに配置されるプローブと、
脳波用電極と、
前記プローブ及び前記脳波用電極に結合されたコントローラとを含み、
前記コントローラが、前記プローブを介して、慢性疼痛の発痛源である疑いがある標的神経に対して、前記脳における慢性疼痛反応を誘導するのに十分な第1の神経刺激を伝達するように構成されており、さらに、前記コントローラが、前記脳波用電極を介して、ベースライン脳活動、前記第1の神経刺激の結果としての前記脳内の誘発電位活動、またはその両方をモニタするように構成され、
当該システムが、誘発電位活動をモニタするために、
(i)増加が、前記プローブが前記慢性疼痛の発痛源のより近くに配置されていることを示し、減少が、前記プローブが前記慢性疼痛の発痛源からより遠く離れて配置されていることを示す誘発電位の振幅、
(ii)減少が、前記プローブが前記慢性疼痛の発痛源のより近くに配置されていることを示し、増加が、前記プローブが前記慢性疼痛の発痛源からより遠く離れて配置されていることを示す誘発電位の潜時、及び
(iii)増加が、前記プローブが前記慢性疼痛の発痛源のより近くに配置されていることを示し、減少が、前記プローブが前記慢性疼痛の発痛源からより遠く離れて配置されていることを示す誘発電位の周波数
の3つのなかの少なくとも1つを測定することを特徴とするシステム。 - 当該システムが、前記脳の1若しくは複数の所定の領域における誘発電位活動をモニタし、
前記脳の1若しくは複数の所定の領域における誘発電位活動の存在が、前記標的神経が慢性疼痛に関連する神経経路の一部であることを示すことを特徴とする請求項1に記載のシステム。 - 当該システムが、前記誘発電位の振幅を測定することによって誘発電位活動をモニタすることを特徴とする請求項1または2に記載のシステム。
- 当該システムが、前記誘発電位の潜時を測定することによって誘発電位活動をモニタすることを特徴とする請求項1ないし3のいずれか1項に記載のシステム。
- 当該システムが、前記誘発電位の周波数を測定することによって誘発電位活動をモニタすることを特徴とする請求項1ないし4のいずれか1項に記載のシステム。
- 当該システムが、前記脳の1若しくは複数の所定の領域における誘発電位活動をモニタし、
前記脳の1若しくは複数の所定の領域における、所定の振幅、所定の潜時、所定の周波数、所定の形状、またはそれらの組合せを有する誘発電位活動の存在が、前記標的神経が慢性疼痛に関連する前記神経経路の一部であることを示すことを特徴とする請求項1ないし5のいずれか1項に記載のシステム。 - 当該システムが、誘発電位の振幅、誘発電位の潜時、誘発電位の周波数、誘発電位の形状、またはそれらの組合せを測定することによって誘発電位活動をモニタし、
所定の刺激において、前記所定の振幅に十分近い振幅、前記所定の潜時に十分近い潜時、前記所定の周波数に十分近い周波数、前記所定の形状に十分近い形状、またはそれらの組合せを有する誘発電位が観察された場合には、前記慢性疼痛の治療のために前記標的神経が慢性疼痛に関連する前記神経経路の一部に十分に極めて近接していることを示すことを特徴とする請求項6に記載のシステム。 - 前記コントローラが、
前記所定の振幅に十分近い振幅、前記所定の潜時に十分近い潜時、前記所定の周波数に十分近い周波数、前記所定の形状に十分近い形状、またはそれらの組合せを有する前記誘発電位活動が観察される前記標的神経に沿った位置において、前記プローブを介して、神経ブロックを生み出すのに十分である第2の神経刺激を伝達し、
前記第2の神経刺激が伝達されたときに脳波活動をモニタし、
前記神経ブロックの適用中に効果的な神経ブロックと合致する脳波活動が観察された場合に、前記標的神経が慢性疼痛に関連する神経経路の一部として正しく識別されたことを確認し、
前記神経ブロック中に効果的な神経ブロックと矛盾する脳波活動が観察された場合に、前記標的神経が慢性疼痛に関連する神経経路の一部ではないと判断するように構成されていることを特徴とする請求項7に記載のシステム。 - 当該システムが、標的神経が慢性疼痛に関連する神経経路の一部として正しく識別されたときに慢性疼痛を治療し、前記コントローラが、前記所定の振幅に十分近い振幅、前記所定の潜時に十分近い潜時、前記所定の周波数に十分近い周波数、前記所定の形状に十分近い形状、またはそれらの組合せを有する前記誘発電位活動が観察される前記標的神経に沿った前記位置において、前記プローブから、前記慢性疼痛に関連する前記神経経路を障害するのに十分な第3の神経刺激を伝達するように構成されていることを特徴とする請求項8に記載のシステム。
- 前記コントローラが、前記標的神経の効果的な障害を確認するべく、前記第1の神経刺激、前記第2の神経刺激、またはその両方を繰り返すことによって前記標的神経の障害が完了していることを検証するようにさらに構成されており、
前記神経経路の効果的な障害と合致する脳波活動が観察された場合には、障害が完了していることを特徴とする請求項9に記載のシステム。 - 前記コントローラが、前記プローブを介して、前記慢性疼痛の発痛源である疑いがない追加的な神経に対して、前記脳における反応を誘導するのに十分な追加的な神経刺激を伝達するように構成されており、さらに、前記コントローラが、前記脳波用電極を介して、ベースライン脳活動、前記追加的な神経刺激の結果としての前記脳内の誘発電位活動、またはその両方をモニタするように構成されていることを特徴とする請求項1ないし10のいずれか1項に記載のシステム。
- 前記標的神経が慢性疼痛に関連する前記神経経路の一部として正しく識別されることを検証するべく、前記追加的な神経刺激からの前記誘導された反応が、前記第1の神経刺激からの前記誘導された反応と比較され、
前記追加的な神経刺激からの前記誘導された反応を前記第1の神経刺激からの前記誘導された反応と比較した場合の両者の違いが、前記標的神経が慢性疼痛に関連する前記神経経路の一部であることを示すことを特徴とする請求項11に記載のシステム。 - 前記プローブが経皮用プローブであることを特徴とする請求項1ないし12のいずれか1項に記載のシステム。
- 前記第1の神経刺激が、電気的刺激であり、かつ約100Hz以下の周波数及び約0.01〜50mAの振幅で伝達されることを特徴とする請求項1に記載のシステム。
- 前記第2の神経刺激が、電気的刺激であり、かつ約1,000〜100,000Hzの周波数及び約0.01〜50mAの振幅で伝達されることを特徴とする請求項8に記載のシステム。
- 前記第3の神経刺激が、電気的刺激であり、かつ約100,000Hzないし約1.5MHzの周波数及び最大約1.4Aの振幅で伝達されることを特徴とする請求項9に記載のシステム。
- 前記コントローラが、電気リードを介して前記プローブに接続されたパルス発生器によって、前記第1の神経刺激及び1若しくは複数の追加的な神経刺激を前記プローブに伝達するように構成されていることを特徴とする請求項1に記載のシステム。
- 慢性疼痛を治療するための装置であって、
慢性疼痛の発痛源を同定する第1の神経刺激、前記慢性疼痛の発痛源が同定されたことを検証する第2の神経刺激、前記慢性疼痛を治療する第3の神経刺激を含む、複数の神経刺激を標的神経に伝達するための少なくとも1つのプローブと、
複数のビュー領域を表示するように構成されたモニタとを含むことを特徴とする装置。 - 前記少なくとも1つのプローブがRFプローブであることを特徴とする請求項18に記載の装置。
- 当該装置が、複数のRFプローブを含むことを特徴とする請求項18または19に記載の装置。
- 当該装置が、複数のチャネルを有するように構成されており、各チャネルが、互いに異なる慢性疼痛の発痛源を治療するように構成されていることを特徴とする請求項18ないし20のいずれか1項に記載の装置。
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CN106793955A (zh) | 2017-05-31 |
US10512413B2 (en) | 2019-12-24 |
RU2017105412A3 (ja) | 2019-02-15 |
AU2015306892A1 (en) | 2017-03-09 |
MX2017001896A (es) | 2017-04-27 |
CA2959332A1 (en) | 2016-03-03 |
BR112017004062A2 (pt) | 2017-12-05 |
CA2959332C (en) | 2023-03-21 |
WO2016032931A1 (en) | 2016-03-03 |
US20170215758A1 (en) | 2017-08-03 |
RU2017105412A (ru) | 2018-09-27 |
US11826154B2 (en) | 2023-11-28 |
US20200077916A1 (en) | 2020-03-12 |
MX364276B (es) | 2019-04-22 |
JP2017530745A (ja) | 2017-10-19 |
KR20170045286A (ko) | 2017-04-26 |
EP3193708A1 (en) | 2017-07-26 |
CN106793955B (zh) | 2021-05-25 |
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