JP5410297B2 - 術中刺激のシステム - Google Patents
術中刺激のシステム Download PDFInfo
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- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
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Description
(項目1)
組織刺激システムであって、
近位端および遠位端を有する筐体と、
対象組織領域の電気刺激に合わせた大きさに構成された導電面を有し、該筐体の近位端から延びる手術部材と、
を含み、
該筐体近位端は該手術部材の移動を可能にする手術部材調節部を含み、
該電気刺激は第1の表示を行うための振幅および継続期間を有する刺激信号の形態を取り、そして、
該システムは、該手術部材と電気的に結合した刺激制御デバイスであって、電源および刺激信号発生回路を含む刺激制御デバイスを含む、システム。
(項目2)
上記刺激制御デバイスは上記筐体内に配置される、項目1に記載の組織刺激システム。
(項目3)
上記組織刺激システムは水の浸入に関するIPX1規格に準拠する、項目1に記載の組織刺激システム。
(項目4)
上記筐体は把持基部および上記手術部材調節部を含む、項目1に記載の組織刺激システム。
(項目5)
上記手術部材調節部は可撓性ノーズコーンを含む、項目1に記載の組織刺激システム。
(項目6)
上記筐体は、上記手術部材に対する上記刺激信号をONおよびOFFにするとともに上記刺激信号振幅の調節を行う第1の制御デバイスであって、上記刺激制御デバイスと電気的に結合する第1の制御デバイスをさらに含み、
該筐体は、上記刺激信号継続期間の調節を行う第2の制御デバイスであって、該刺激制御デバイスと電気的に結合する第2の制御デバイスをさらに含む、項目1に記載の組織刺激システム。
(項目7)
上記組織刺激システムは単回使用のために滅菌されるとともに予め包装される、項目1に記載の組織刺激システム。
(項目8)
上記刺激制御デバイスと電気的に結合する対極板をさらに含む、項目1に記載の組織刺激システム。
(項目9)
上記手術部材は非直線形状である、項目1に記載の組織刺激システム。
(項目10)
上記手術部材はプローブを含み、該プローブの導電面は該プローブの近位端の約1ミリメートル〜約10ミリメートルを含む、項目1に記載の組織刺激システム。
(項目11)
上記手術部材は約0.5ミリメートル〜約1.5ミリメートルの直径を有するプローブを含む、項目1に記載の組織刺激システム。
(項目12)
上記第1の表示により、上記デバイスの電源投入および上記導電面に対する刺激信号の送達を確認する、項目1に記載の組織刺激システム。
(項目13)
上記第1の表示は上記筐体上に位置する視覚表示を含む、項目1に記載の組織刺激システム。
(項目14)
上記視覚表示は反射素子をさらに含む、項目13に記載の組織刺激システム。
(項目15)
上記筐体は管状形状である、項目13に記載の組織刺激システム。
(項目16)
上記視覚表示は、上記管状筐体の外周に目視可能な照明用周縁環状インディケータを含む、項目15に記載の組織刺激システム。
(項目17)
組織刺激システムであって、
近位端および遠位端を有し、ユーザが持てる大きさに構成された筐体と、
対象組織領域の電気刺激に合わせた大きさに構成された導電面を有し、該筐体の近位端から延びるプローブであって、該電気刺激は、物理的運動反応を行うための振幅および継続期間を有する信号の形態を取る、プローブと、
を含み、
該筐体近位端は該プローブの移動を可能にするプローブ調節部を含み、
該システムは、該プローブと電気的に結合し、該筐体内に配置される大きさに構成された刺激制御デバイスであって、刺激信号発生回路を含む刺激制御デバイスを含み、
該筐体は、該プローブに対する該刺激信号をONおよびOFFにするとともに該刺激信号振幅の調節を行う第1の制御デバイスであって、該刺激制御デバイスと電気的に結合する第1の制御デバイスを含み、
該筐体は、該刺激信号継続期間の調節を行う第2の制御デバイスであって、該刺激制御デバイスと電気的に結合する第2の制御デバイスをさらに含む、システム。
(項目18)
上記物理的運動反応は、上記手術部材が神経に対して近接していることを示すかまたは神経組織を同定する表示を含む、項目17に記載の組織刺激システム。
(項目19)
上記物理的運動反応は、修復が必要かどうかを判定するために無傷の神経の表示を含む、項目17に記載の組織刺激システム。
(項目20)
上記物理的運動反応は、筋肉が神経支配されているか、または該筋肉が無傷であるか、または該筋肉が断裂しているかを同定するために該筋肉の状態表示を含む、項目17に記載の組織刺激システム。
(項目21)
上記物理的運動反応は、外科的処置の終了前における修復または腱移植後の筋肉および腱の長さならびに機能の表示を含む、項目17に記載の組織刺激システム。
(項目22)
上記プローブは非直線形状である、項目17に記載の組織刺激システム。
(項目23)
上記デバイスの電源投入および上記導電面に対する刺激信号の送達を確認する第2の表示手段をさらに含む、項目17に記載の組織刺激システム。
(項目24)
上記第2の表示手段は上記筐体上に位置する、項目23に記載の組織刺激システム。
(項目25)
上記第2の表示手段は、上記筐体の外周において可視状態となる照明用周縁環状インディケータを含む、項目24に記載の組織刺激システム。
(項目26)
患者の組織領域をテストする方法であって、
筐体の近位端から延びる手術部材を有する組織刺激システムを提供する工程を包含し、
該筐体近位端は、該手術部材の移動を可能にする手術部材調節部を含み、
該方法は、第1の制御デバイスを作動位置に移動し、該刺激システムで刺激信号を発生させるとともに該手術部材に送信する工程と、
該患者の対象組織領域に該手術部材を設置する工程と、
該対象組織領域を第1の表示について観察する工程とを包含する、方法。
(項目27)
上記刺激システムと電気的に結合する第2の電極を上記患者に設置する工程であって、該第2の電極は上記手術部材から該患者の体を介して該第2の電極に上記刺激信号を流し、該刺激システムに戻す、工程をさらに包含する、項目26に記載の方法。
(項目28)
携帯式組織刺激装置であって、
把持基部および手術部材調節部を含む管状筐体を含み、
該把持基部は、第1の筐体部材および第2の筐体部材を含み、
該装置は、該把持基部内に配置された刺激制御デバイスと、
該把持基部内に配置され、該刺激制御デバイスと結合して該刺激制御デバイスに電力を供給するバッテリと、
該把持基部の近位端と結合する視覚表示であって、該管状筐体の外周において可視状態となる照明用周縁環状インディケータを含む視覚表示と、
対象組織領域の電気刺激に合わせた大きさに構成された導電面を有し、該刺激制御デバイスと結合し、該手術部材調節部の近位端から延びる手術部材と、
を含む、装置。
(項目29)
上記手術部材調節部は上記手術部材の移動を可能にする大きさに構成された可撓性ノーズコーンを含む、項目28に記載の装置。
(項目30)
上記視覚表示は反射素子をさらに含む、項目28に記載の装置。
(項目31)
上記刺激制御デバイスと電気的に結合する対極板をさらに含む、項目28に記載の装置。
(項目32)
対象組織領域の組織に刺激を与えるデバイスのキットであって、
左手または右手で持てる大きさに構成された筐体を含み、滅菌され、使い捨て可能な携帯式刺激プローブであって、該筐体の近位端から延びる手術部材を含むプローブを含み、
該筐体近位端は、該手術部材の移動を可能にする手術部材調節部を含み、
該キットは、該刺激プローブと結合する対極板を含むリードと、
該刺激プローブの開梱および組織接触手順を記載した使用説明と、
を含む、キット。
本発明は、術中に刺激を与えるためのデバイス、システム、および方法を提供する。術中に刺激を与えることにより、筋神経系を正確に評価し、修復または再建手術のガイドを行うことができる。
図1は、組織の位置特定および同定、ならびに外科的処置時の組織および/または骨損傷の予防のための例示的なシステム20を示す。この例示的な実施形態では、システム20は、体全体の組織および他の構造の位置特定、監視、および刺激のために構成される。システム20は、例えば、刺激モニタまたはプローブ100、切断デバイス200、穿孔または締込デバイス300、パイロットオーガー400、および固定デバイス500を含む刺激医療デバイス類の1つ以上とともにかまたは独立して動作する刺激制御デバイス22を含む。
上記システムの一部を形成する刺激医療デバイスの構成は、形態および機能を変更することができる。例示的な医療デバイスの各種代表的な実施形態を説明する。
図3A〜図3Cは、外科的処置時の神経および/または筋肉の同定およびテストのための携帯式刺激モニタまたはプローブ50の各種実施形態を示す。図示するように、刺激プローブ50は、略管状の筐体112内に刺激制御デバイス22の電気回路を収容してもよい。刺激プローブ50は、外科的処置時に神経および筋肉の同定、筋肉付着部の同定、または筋肉の収縮による外科的介入の質または外科的介入の必要性の判定、または視覚的手段によりすでに同定された神経の機能の評価を目的とした人間工学的滅菌単回使用器具であることが望ましい。刺激プローブ50は、例えば、エチレンオキシドを用いて滅菌してもよい。
図8に示すように、刺激制御デバイス22は、電気刺激波形を発生する回路32を含む。バッテリ34は電力を供給することが望ましい。制御デバイス22はまた、埋め込みコードを備えた搭載プログラマブルマイクロプロセッサ36を含むことが望ましい。このコードは、刺激出力回路46を用いて所望の電気刺激波形を発生するとともに外科医が作動する制御部に基づいて可視または可聴インディケータ126を動作させるための予めプログラムされたルールまたはアルゴリズムを現す。
上述したような刺激制御デバイス22は、(刺激プローブ50に関して上述したように)リードを介して外科的処置で一般に用いられる各種デバイスと電気的に結合するかまたはそれらの内部に埋め込んでもよい。
図9Aおよび図9Bにおいて、デバイス200は刺激プローブ50、100の説明で開示した全ての特徴を組み込むとともに、「電圧を印加される」外科デバイスまたはツールを提供するさらなる特徴を含んだ状態で示されている。図9Aは、刺激制御デバイス22に脱着可能に結合された切断デバイス200(例えば、外科用メス)としてのツールを示す。
図10Aおよび図10Bにおいて、デバイス300は刺激プローブ50、100の説明で開示された全ての特徴を組み込むとともに、穿孔デバイス300を含む「電圧を印加される」外科デバイスまたはツールを提供するさらなる特徴を含んだ状態で示されている。図10Aでは、穿孔デバイス300は刺激制御デバイス22に脱着可能に結合される。
本発明のさらなる局面では、硬質表面用の回転プローブのためのパイロットオーガーと電気的に結合する刺激制御デバイスを含む刺激デバイス類の動作を制御するシステムおよび方法を提供する。
本発明のさらなる局面では、固定デバイスまたは固定デバイスを配置するためのレンチもしくはドライバーと電気的に結合する刺激制御デバイスを含む刺激デバイス類の動作を制御するシステムおよび方法を提供する。固定デバイス(例えば、整形外科用器具、ペディクルスクリュー)は、脊髄安定術(固定術)および内部骨固定術において一般に用いられる。
刺激制御デバイス22は、単独で、または刺激プローブもしくは外科デバイスに組み込んで、各種技術的特徴を組み込んでその万能性を高めることができる。
1つの望ましい技術的特徴により、刺激制御デバイス22は、外科的処置時に片手で持って使用するか、または刺激プローブまたは外科デバイス内に設置するために十分に小型のサイズにすることができる。刺激端部の角度により、大切開を必要とすることなく深部構造および浅部構造に対するアクセスが容易となる。筐体に組み込んだ視覚および/または可聴表示により、刺激電流の要求および送達に関して外科医に確実にフィードバックを行うかまたは状態を知らせる。
1つの望ましい技術的特徴により、筐体内に配置されるとともに制御デバイス22と結合する1つ以上の単回使用一次電池34で電力が提供される。代表的なバッテリ34は、「単五」サイズのアルカリ電池を含んでもよい。1つの実施形態では、「単五」サイズのアルカリ電池2つを直列にして含むことにより3ボルトの電源を提供してもよい。この構成は、動作寿命が少なくとも7時間連続してまたは断続的に刺激を与えられる大きさに構成される。
1つの望ましい技術的特徴により、刺激制御デバイス22は、標準的な市販の消費電力が少ないプログラム可能なフラッシュマイクロコントローラ36を用いることが望ましい。マイクロコントローラ36は、外科医が操作する制御部を読み出し、刺激パルスのタイミングを制御し、ユーザに対する器具の状態(例えば、ON、OFF、または点滅する1または2つ以上の色のLED)についてのフィードバックを制御する。
上述の刺激プローブ50、100は、対象組織領域に対する近接度の評価、神経に対する近接度の評価、または神経組織の同定、神経が無傷であるか(すなわち、外傷後)どうかの評価による修復の必要性の有無の判定、筋収縮の評価による筋肉の神経支配の有無および/または筋損傷の有無および/または筋肉断裂の有無の判定、ならびに外科的処置終了前における修復または腱移植後の筋肉および腱の長さおよび機能の評価を含むがこれらに限定されない多数の医療処置において、神経または筋肉の位置特定、刺激、および神経もしくは筋肉または神経および筋肉の完全性の評価のために刺激信号を十分に高いレベルで印加することを可能にする。
・滅菌パッケージ88から刺激プローブ50を取り出す。
1. 対極板は、刺激する領域から離れた領域に配置することが望ましい。
Claims (16)
- 携帯型の組織刺激システムであって、
近位端および遠位端を有する筐体と、
振幅と継続期間を有する電気的な刺激信号の発生のための刺激信号発生回路と、当該刺激信号発生回路に電気的に接続されるマイクロコントローラと、刺激制御デバイスのための電源と、を備える刺激制御デバイスと、
対象組織領域に接触するように構成されたプローブであって、前記刺激信号発生回路に電気的に接続される導電面を有し、該筐体の近位端から延びる、プローブと、
前記刺激信号発生回路に電気的に接続され、かつ、前記プローブからの前記刺激信号を前記刺激制御デバイスに戻すための電気経路を提供するように構成された、対極板と、
前記筺体上に配置されて、前記マイクロコントローラに電気的に接続される第1の制御デバイスであって、前記刺激信号発生回路を作動させる電源制御入力を前記マイクロコントローラに提供するため、ユーザによって第1の位置から第2の位置に移動可能である第1の制御デバイスと、
単回使用期間の間、異なるステータス状態に応じて異なる視覚表示を行うことで、当該ステータス状態を確認できるように、前記筺体上に配置されて、前記マイクロコントローラに電気的に接続される視覚インディケータと、
を備え、
前記筐体の近位端は前記プローブの移動を可能にする調節部を含み、
前記刺激制御デバイスは前記筺体内に配置され、
前記マイクロコントローラは、前記視覚インディケータに、
(i)前記プローブと前記対象組織領域との接触とは無関係に、前記第1の制御デバイスの操作により前記刺激信号発生回路が起動していることを確認するための第1の所定の色及び/又は閃光速度の光、
(ii)前記第1の所定の色及び/又は閃光速度の光とは異なり、前記プローブと前記対象組織領域との接触がある時に、前記プローブを介して前記対象組織領域に与えられた前記刺激信号が前記対極板を介して前記刺激制御デバイスに戻ることを確認するための第2の所定の色及び/又は閃光速度の光、
(iii)前記第1の所定の色及び/又は閃光速度の光並びに前記第2の所定の色及び/又は閃光速度の光とは異なり、前記プローブと前記対象組織領域との接触がある時に、前記第1の制御デバイスの操作により前記刺激信号発生回路が起動しているにも関わらず、前記対極板を介して前記刺激制御デバイスに前記刺激信号が戻っていないことを確認するための第3の所定の色及び/又は閃光速度の光、
を表示させるように構成される、
組織刺激システム。 - 前記筺体は、片手で持って操作できる大きさに構成される、請求項1に記載の組織刺激システム。
- 前記刺激信号は、物理的運動反応を提供するように適合される、請求項1に記載の組織刺激システム。
- 前記刺激信号は、修復が必要か否かを判定するため、神経が無傷であるかどうかの評価を提供するように適合される、請求項1に記載の組織刺激システム。
- 前記刺激信号は、筋肉の神経支配の有無、筋損傷の有無、又は筋肉断裂の有無を判定するため、筋肉状態の評価を提供するように適合される、請求項1に記載の組織刺激システム。
- 前記刺激信号は、外科的処置終了前における修復又は腱移植後の筋肉及び腱の長さ及び機能の評価を提供するように適合される、請求項1に記載の組織刺激システム。
- 前記プローブは非直線形状である、請求項1に記載の組織刺激システム。
- 前記視覚インディケータは、前記筺体の外周全体で目視可能なように構成された照明用周縁環状インディケータである、請求項1に記載の組織刺激システム。
- 前記視覚インディケータは反射素子をさらに含む、請求項8に記載の組織刺激システム。
- 前記刺激信号の振幅の所定範囲は、約0ミリアンペアを含み、約0ミリアンペア以上の複数のミリアンペアの値に増加するように調節することができる、請求項1に記載の組織刺激システム。
- 前記刺激信号の振幅の所定範囲は、約0ミリアンペアを含み、約20ミリアンペアまで段階的に増加するように調節することができる、請求項10に記載の組織刺激システム。
- 前記刺激信号の継続期間の所定範囲は、約0マイクロ秒を含み、約0マイクロ秒以上の複数のマイクロ秒の値に増加するように調節することができる、請求項1に記載の組織刺激システム。
- 前記刺激信号の継続期間の所定範囲は、約0マイクロ秒を含み、約200マイクロ秒まで増加するように調節することができる、請求項12に記載の組織刺激システム。
- 前記視覚インディケータは、前記第1の制御デバイスと前記筺体の近位端との間に存在する、請求項1に記載の組織刺激システム。
- 前記第1の制御デバイスは、単回使用期間の間、ON状態にある前記刺激信号発生回路をスタンバイ状態にする制御入力を前記マイクロコントローラに提供するため、前記第2の位置から前記第1の位置に戻すことが可能であり、
前記第1の制御デバイスは、更に、単回使用期間の間、前記刺激信号の振幅の所定範囲内で振幅を選択的に制御する振幅制御入力をマイクロコントローラに提供するため、前記第2の位置から複数の制御位置に移動可能である、請求項1に記載の組織刺激システム。 - 前記視覚インディケータは、複数の発光ダイオードを備える1つの視覚インディケータである、請求項1に記載の組織刺激システム。
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US20130296733A1 (en) | 2013-11-07 |
US8500652B2 (en) | 2013-08-06 |
WO2008085965A2 (en) | 2008-07-17 |
US20110125051A1 (en) | 2011-05-26 |
AU2008205293A1 (en) | 2008-07-17 |
US20120238902A1 (en) | 2012-09-20 |
AU2008205293B2 (en) | 2011-09-08 |
EP2106273A4 (en) | 2015-04-15 |
US20070191915A1 (en) | 2007-08-16 |
EP2106273A2 (en) | 2009-10-07 |
US20200069202A1 (en) | 2020-03-05 |
US7878981B2 (en) | 2011-02-01 |
JP2010515487A (ja) | 2010-05-13 |
CN101594906B (zh) | 2014-03-26 |
CA2674446A1 (en) | 2008-07-17 |
WO2008085965A3 (en) | 2008-10-23 |
CN101594906A (zh) | 2009-12-02 |
US10470678B2 (en) | 2019-11-12 |
US8172768B2 (en) | 2012-05-08 |
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