JP2019048118A - 組織を穿刺する方法およびデバイス - Google Patents
組織を穿刺する方法およびデバイス Download PDFInfo
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Abstract
【解決手段】システム50は、単独でまたは組み合わせて使用可能であり、所望のアクセス部位からの多様な解剖学的位置での組織アクセスおよび穿刺を促進するように構成された、拡張器100とワイヤ200とを含む。それぞれ、アクセス部位から組織部位にアクセスするのに十分な可撓性を有するとともに、1つ以上の追加的機能を行うのに十分な剛さを保つ1つ以上のセクションを含む。
【選択図】図1
Description
Claims (84)
- 組織部位で組織を穿刺するための医療デバイスであって、
近位セクション、遠位セクション、および近位と遠位セクションとの間のレールセクションを有する細長部材と、
前記遠位セクションの遠位端の能動先端であって、前記組織を通して穿刺部を作製するためのエネルギーを送達するために動作可能な能動先端と、
を含み、
前記レールセクションは、前記レールセクション上の1つ以上の筒状部材の装着を支持するためのレールとして働くとともに、前記組織部位へのアクセスを可能にするために操縦可能であるように構成される、
医療デバイス。 - 前記レールセクションは、前記組織部位へのアクセスを可能にするために少なくとも180°曲がるように動作可能である、請求項1記載の医療デバイス。
- 前記レールセクションの剛さは、前記レールセクションが少なくとも180°曲げ可能であり、前記レールセクション上の1つ以上の筒状部材の装着を支持するためのレールとして機能するのを可能にするために、約150N/m〜約600N/mの間である、請求項2記載の医療デバイス。
- 前記レールセクションは、前記組織部位へのアクセスを可能にするために、約700mm〜約1750mmの間の長さを有する、請求項1〜3のいずれか一項に記載の医療デバイス。
- 前記レールセクションは、約1200mm〜約1300mmの間の長さを有する、請求項4記載の医療デバイス。
- 前記遠位セクションは、前記遠位セクションが前記穿刺部を通して前進させられた際に前記遠位セクションを定着するために、遠位コイルを展開された状態に自動的に形成するように構成された遠位セクション湾曲部分を画成する、請求項1記載の医療デバイス。
- 前記コイルは、約270〜約720°の間のスパイラルを画成する、請求項6記載の医療デバイス。
- 前記コイルは、約630°のスパイラルを画成する、請求項7記載の医療デバイス。
- 前記コイルは、前進軸に沿って、閉じ込められた状態から展開された際に、前記能動先端が前記前進軸から離れる方向に湾曲するように構成される、請求項6記載の医療デバイス。
- 前記能動先端は、前記遠位セクション湾曲部分が前記展開された状態にあるときに、前記能動先端と直角の前記細長部材の電気的に絶縁された部分から所定の距離だけ離れて配置される、請求項9記載の医療デバイス。
- 前記所定の距離は、約0.8mm〜約4mmである、請求項10記載の医療デバイス。
- 前記所定の距離は、約3mmである、請求項11記載の医療デバイス。
- 前記所定の距離は、前記能動先端の直径の約1〜約5倍である、請求項10記載の医療デバイス。
- 前記所定の距離は、前記能動先端の前記直径の約4.6倍である、請求項13記載の医療デバイス。
- 前記遠位セクション湾曲部分は、筒状部材の内腔内に配置される間に、前記筒状部材の形状に適合するように構成される、請求項6〜14のいずれか一項に記載の医療デバイス。
- 前記遠位セクション湾曲部分での前記細長部材の剛さは、前記遠位セクション湾曲部分が前記筒状部材の前記形状に適合するのを可能にするために、約550N/m未満である、請求項15記載の医療デバイス。
- 前記遠位セクション湾曲部分での前記細長部材の剛さは、約200N/m未満である、請求項16記載の医療デバイス。
- 前記遠位セクションは、前記遠位セクション湾曲部分の遠位の遠位セクション直線状部分をさらに画成し、前記遠位セクション直線状部分は、前記能動先端を含む、請求項6記載の医療デバイス。
- 前記遠位セクションの長さは、約30mm〜約150mmの間である、請求項18記載の医療デバイス。
- 前記遠位セクションの前記長さは、約125mmである、請求項19記載の医療デバイス。
- 前記遠位セクション直線状部分での前記細長部材の直径は、前記遠位セクション湾曲部分での前記細長部材の遠位端の直径よりも大きい、請求項18記載の医療デバイス。
- 前記遠位セクション直線状部分の長さは、約3mm〜約10mmである、請求項18記載の医療デバイス。
- 前記近位セクションは、前記医療デバイスの取扱いの改良ために近位コイルを形成するように構成された近位セクション湾曲部分を画成する、請求項6記載の医療デバイス。
- 前記近位コイルおよび遠位コイルは、同一平面上にある、請求項23記載の医療デバイス。
- 前記近位セクションは、前記細長部材上の前記1つ以上の筒状部材の取り付けを促進するための、前記近位セクション湾曲部分の近位の近位セクション直線状部分をさらに画成する、請求項23記載の医療デバイス。
- 前記細長部材は電気伝導ワイヤを含み、前記近位セクション直線状部分の前記ワイヤの少なくとも一部は、電気エネルギー源に接続するために電気的に露出される、請求項25記載の医療デバイス。
- 前記近位セクション直線状部分の前記電気的に露出されたワイヤの長さは、約5mm〜約15mmの間である、請求項26記載の医療デバイス。
- 前記近位セクション直線状部分の近位端は、電気的に露出され、前記近位セクション直線状部分の前記近位端は、丸み付き先端を画成する、請求項26記載の医療デバイス。
- 前記近位セクション直線状部分の前記近位端は、組織を機械的に穿刺するために動作可能である、請求項28記載の医療デバイス。
- 前記細長部材は、電気伝導ワイヤを含む、請求項1記載の医療デバイス。
- 前記ワイヤは、電気絶縁体の層により実質的にカバーされ、前記ワイヤの遠位先端は、前記能動先端を形成するために前記電気絶縁体の層を欠く、請求項30記載の医療デバイス。
- 前記電気絶縁体の層は、血栓症のリスクを減らすために、平滑な外側表面を画成する、請求項31記載の医療デバイス。
- 前記電気絶縁体の層は、抗血栓性である、請求項31記載の医療デバイス。
- 前記ワイヤは、スプリングテンパー処理されたステンレス鋼からなる、請求項30記載の医療デバイス。
- 前記レールセクションでの前記ワイヤの外径は、約0.3mm〜0.9mmの間である、請求項30〜34のいずれか一項に記載の医療デバイス。
- 前記レールセクションの近位端での前記ワイヤの前記外径は約0.6mmであり、前記レールセクションの遠位端での前記ワイヤの前記外径は約0.5mmである、請求項35記載の医療デバイス。
- 前記遠位セクションでの前記ワイヤの外径は、約0.1mm〜約0.7mmの間である、請求項30〜34のいずれか一項に記載の医療デバイス。
- 前記遠位セクションでの前記ワイヤの前記外径は、約0.5mmから約0.2mmまで遠位に先細になる、請求項37記載の医療デバイス。
- 前記能動先端は、実質的に無傷性である、請求項1記載の医療デバイス。
- 前記遠位セクションは、放射線不透過性マーカをさらに含む、請求項30〜34のいずれか一項に記載の医療デバイス。
- 前記放射線不透過性マーカは、前記遠位セクションで前記ワイヤを囲む螺旋状コイルを含む、請求項40記載の医療デバイス。
- 前記電気絶縁体の層は、前記螺旋状コイルの遠位に伸び、これにより前記螺旋状コイルは、前記電気絶縁体の層を固定する、請求項41記載の医療デバイス。
- 前記能動先端は、電極を含む、請求項1記載の医療デバイス。
- 前記電極の直径は、約0.4mm〜約0.7mmの間である、請求項43記載の医療デバイス。
- 前記電極の長さは、約0.75mm〜約1.5mmの間である、請求項43記載の医療デバイス。
- 前記電極は、ドーム形である、請求項43記載の医療デバイス。
- 前記細長部材は、電気伝導ワイヤを含み、前記能動先端での前記ワイヤの直径は、前記遠位セクション湾曲部分の前記ワイヤの直径よりも大きい、請求項6記載の医療デバイス。
- 前記遠位セクション湾曲部分と前記能動先端との間の前記ワイヤの部分は、逆テーパを画成する、請求項47記載の医療デバイス。
- 患者の体内の組織部位にアクセスするために補助的デバイスとともに使用するための拡張器であって、前記補助的デバイスは、前記拡張器をカーブに沿って導くことにより前記拡張器を誘導するために動作可能な湾曲付与領域を含み、前記拡張器は、
実質的に剛性の遠位端領域と、
前記遠位端領域で終端する実質的に可撓性の中間領域と、
を含み、
前記拡張器は、前記補助的デバイスとともに使用されるときに、前記拡張器の前記実質的に可撓性の中間領域の位置が、前記補助的デバイスの前記湾曲付与領域の位置に対応するように構成され、
前記実質的に剛性の遠位端領域は、前記拡張器が前記組織部位を通って前進するのを可能にするために、前記可撓性中間領域よりも大きい剛性を有する、
拡張器。 - 前記実質的に剛性の遠位端領域は、前記実質的に可撓性の中間領域の長さの約2.5%〜約60%の間の長さを有する、請求項49記載の拡張器。
- 前記拡張器は、前記実質的に可撓性の中間領域から近位に伸びる近位領域を含み、前記近位領域は、前記可撓性中間領域よりも大きい剛性を有する、請求項49記載の拡張器。
- 前記遠位端領域および前記近位領域は、実質的に等しい剛性を有する、請求項51記載の拡張器。
- 前記実質的に剛性の遠位端領域は、テーパを画成する、請求項49記載の拡張器。
- 前記実質的に剛性の遠位端領域は、2段テーパを画成する、請求項49記載の拡張器。
- 組織部位で組織を穿刺するためのキットであって、
請求項1〜3、6〜14、18〜34、39または43〜48のいずれか一項に記載の少なくとも1つの医療デバイスと、
前記少なくとも1つの医療デバイスを前記組織部位へ誘導するための少なくとも1つの操縦可能デバイスと
を含む、キット。 - 前記少なくとも1つの医療デバイスを電気外科用発電機に接続するための少なくとも1つの電気コネクタをさらに含む、請求項55記載のキット。
- 請求項49〜54のいずれか一項に記載の少なくとも1つの拡張器をさらに含む、請求項55記載のキット。
- 組織部位で組織を穿刺するためのシステムであって、
請求項1〜3、6〜14、18〜34、39または43〜48のいずれか一項に記載の少なくとも1つの医療デバイスと、
前記組織部位で前記組織を穿刺するためのエネルギーを送達するために前記少なくとも1つの医療デバイスに接続するための電気外科用発電機と、
を含む、システム。 - 前記少なくとも1つの医療デバイスを前記電気外科用発電機に接続するための少なくとも1つの電気コネクタをさらに含む、請求項58記載のシステム。
- 前記少なくとも1つの医療デバイスを前記組織部位に誘導するための少なくとも1つの操縦可能デバイスをさらに含む、請求項58記載のシステム。
- 請求項49〜54のいずれか一項に記載の少なくとも1つの拡張器をさらに含む、請求項58記載のシステム。
- 上方アクセスアプローチを用いて患者の心臓内の組織を穿刺する方法であって、
(a)上方アプローチアクセス部位から患者の心臓内へ、患者の血管系を通して操縦可能シースを前進させるステップであって、前記操縦可能シースは、内腔を画成し、前記内腔内に請求項1〜3、6〜14、18〜34、39または43〜48のいずれか一項に記載の医療デバイスを含む、ステップと、
(b)前記医療デバイスの能動先端を前記心臓内の組織に実質的に隣接して配置するために、前記操縦可能シースを関節式に動作させて前記医療デバイスの遠位部分を誘導するステップと、
(c)前記組織に穿刺部を作製するために前記能動先端を通じてエネルギーを送達し、前記医療デバイスを内部に前進させるステップと、
を含む、方法。 - (d)請求項49〜54のいずれか一項に記載の拡張器を、前記穿刺部を通して前記医療デバイス上に前進させるステップをさらに含む、請求項62記載の方法。
- ステップ(a)は、前記操縦可能シースを前記心臓の右心房内に前進させるステップを含み、前記組織は、前記心臓の中隔を含む、請求項62記載の方法。
- ステップ(c)は、前記医療デバイスを前記心臓の左心房内に前進させるステップをさらに含む、請求項64記載の方法。
- リード送達拡張器およびリード送達カテーテルのうちの少なくとも1つを、前記医療デバイス上で前記心臓の前記左心房内へ前進させるステップをさらに含む、請求項65記載の方法。
- 前記リード送達カテーテルを前記心臓の左心室内に前進させるステップをさらに含む、請求項66記載の方法。
- 上方アクセスアプローチを用いて心臓の左側へのアクセスを提供し、前記心臓の左側へ器具類を前進させるための支持を提供する方法であって、
(a)請求項1〜3、6〜14、18〜34、39または43〜48のいずれか一項に記載の医療デバイスを、心臓の上方のアクセス部位から、上大静脈を通して、前記心臓の右心房内へと前進させるステップと、
(b)前記医療デバイスの能動先端を前記心臓の中隔に実質的に隣接して配置するために、操縦可能シースを関節式に動作させるステップと、
(c)前記中隔を穿刺するために前記医療デバイスの前記能動先端を通じてエネルギーを送達するステップと、
(d)前記医療デバイスを前記心臓の左心房内に前進させるステップと、
(e)前記穿刺部を拡張するために、請求項49〜54のいずれか一項に記載の拡張器を前記医療デバイス上に前進させるステップと、
を含む、方法。 - 上方アクセスアプローチを用いて患者の心腔にアクセスする方法であって、
(a)上方アプローチアクセス部位から患者の心臓内へ、患者の血管系を通して操縦可能デバイスを前進させるステップであって、前記操縦可能デバイスは、内腔を画成し、前記内腔内に請求項49〜54のいずれか一項に記載の拡張器を含む、ステップと、
(b)前記拡張器を前記患者の心臓の組織に実質的に隣接して配置するために、前記操縦可能デバイスを関節式に動作させて前記拡張器の遠位部分を操作するステップと、
(c)前記組織の穿刺部を通して前記拡張器を前進させるステップと、
を含む、方法。 - 前記拡張器は、拡張器内腔を画成し、前記拡張器内腔内に請求項1〜3、6〜14、18〜34、39または43〜48のいずれか一項に記載の医療デバイスを含む、請求項69記載の方法。
- ステップ(b)と(c)との間に、前記医療デバイスを前進させ、前記組織を穿刺するステップをさらに含む、請求項70記載の方法。
- 前記組織は、前記心臓の中隔である、請求項69記載の方法。
- 前記組織を穿刺するステップは、前記組織を穿刺するために前記医療デバイスを通じてエネルギーを送達するステップを含む、請求項69記載の方法。
- 前記エネルギーを送達するステップは、電気エネルギーを送達するステップを含む、請求項73記載の方法。
- 前記電気エネルギーは、高周波帯域内にある、請求項74記載の方法。
- 前記操縦可能デバイスは、操縦可能シースである、請求項69記載の方法。
- ステップ(c)は、前記拡張器の保形先端セクションを使用して前記穿刺部を拡張するステップを含む、請求項69記載の方法。
- ステップ(c)と(d)との間に、前記中隔をテンティングするステップをさらに含む、請求項69記載の方法。
- 前記アクセス部位は、左鎖骨下静脈を含む、請求項62〜78のいずれか一項に記載の方法。
- 前記アクセス部位は、右鎖骨下静脈を含む、請求項62〜78のいずれか一項に記載の方法。
- 前記アクセス部位は、頚静脈を含む、請求項62〜78のいずれか一項に記載の方法。
- 組織にアクセスするためのキットであって、
実質的に剛性の遠位端領域で終端する実質的に可撓性の中間領域を含む拡張器と、
たわみ可能領域を含み、内部に前記拡張器を受け入れるための内腔を画成する操縦可能シースと、
を含み、
前記シースおよび拡張器は、前記操縦可能シースの前記たわみ可能領域のたわみに対する前記拡張器の抵抗を最小化するために、使用時に前記内腔内の前記拡張器の前記実質的に可撓性の中間領域の位置が、前記シースの前記たわみ可能領域の位置に対応するように連携するように構成される、
キット。 - 内部を通る内腔を画成し、シース遠位端を画成する、操縦可能シースと、
実質的に剛性の遠位端領域で終端する実質的に可撓性の中間領域を含む拡張器と、
を含み、
前記拡張器は、前記内腔を通って伸び、前記拡張器の実質的に剛性の遠位端領域は、前記シース遠位端を越えて伸びる、
シースアセンブリ。 - 患者の体の組織の領域にアクセスするために操縦可能シースアセンブリを使用する方法であって、
血管系を通して操縦可能シースを患者の体内の組織の領域に前進させるステップであって、前記操縦可能シースは、たわみ可能領域を含む、ステップと、
前記操縦可能シースの内腔内に拡張器を配置するステップであって、前記拡張器は、可撓性中間領域および剛性遠位端領域を含む、ステップと、
前記操縦可能シースを作動させて前記操縦可能シースを所望のたわみ角度にたわめ、前記組織の領域内の所望の組織部位への前記拡張器の遠位端領域の配置を可能にするステップと、
前記遠位端領域を含む前記拡張器の部分を、前記所望の組織部位を通して前進させるステップであって、前記拡張器の遠位端領域は、前記組織部位を拡張するための前記所望の組織部位を通した前記遠位端領域の前進を可能にするのに十分な剛性を有する、ステップと、
を含み、
前記操縦可能シースおよび前記拡張器は、前記操縦可能シースを作動させる前に前記拡張器の前記可撓性中間領域が前記操縦可能シースの前記たわみ可能領域に合わせられるように連携し、前記拡張器の前記可撓性中間領域は、前記操縦可能シースの前記たわみ可能領域がたわむことができるように構成される、
方法。
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