JP2022016323A - 枢動可能締め付けビームを有するツール組立体 - Google Patents

枢動可能締め付けビームを有するツール組立体 Download PDF

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JP2022016323A
JP2022016323A JP2021107304A JP2021107304A JP2022016323A JP 2022016323 A JP2022016323 A JP 2022016323A JP 2021107304 A JP2021107304 A JP 2021107304A JP 2021107304 A JP2021107304 A JP 2021107304A JP 2022016323 A JP2022016323 A JP 2022016323A
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body portion
central body
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シー. フレムド ジェニファー
C Fremd Jennifer
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    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • AHUMAN NECESSITIES
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    • AHUMAN NECESSITIES
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    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
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    • AHUMAN NECESSITIES
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    • A61B17/00Surgical instruments, devices or methods
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214Stapler heads
    • A61B2017/07278Stapler heads characterised by its sled or its staple holder
    • AHUMAN NECESSITIES
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    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
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    • A61B2017/07285Stapler heads characterised by its cutter

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Abstract

【課題】枢動可能締め付けビームを有するツール組立体の提供。【解決手段】ツール組立体は、第1のジョーおよび第2のジョーと、クランプ組立体と、を含み、クランプ組立体は、本体部分と、第1のビームおよび第2のビームと、を有し、第1のビームおよび第2のビームは、第1のジョーおよび第2のジョーと係合している。クランプ組立体は、ツール組立体を開位置から締め付け位置に移動させるように、第1のジョーおよび第2のジョーに関係して可動である。第1または第2ビームのうちの一方は、このビームが、ジョーが開位置にあるときにツール組立体の枢動可能ジョーと係合することができるように、クランプ組立体の本体部分に枢動可能に結合されている。これにより、ツール組立体が開位置にあるときに、ツール組立体内のデッドスペースを最小限に抑えるように、クランプ組立体がジョー間に位置付けられていることが可能になる。【選択図】図2

Description

本テクノロジーは、概して、ステープル留めデバイスに関し、より具体的には、Iビーム閉鎖を備えるツール組立体を有するステープル留めデバイスに関する。
外科処置中に組織を縫合するための外科用ステープル留めデバイスは、よく知られている。このようなデバイスは、従来の縫合技法を使用して組織が縫合され得るよりも素早く組織を縫合することができる。このように、外科用ステープル留めデバイスは、外科処置を行うのに必用とされる時間を短縮し、患者への心的外傷を最小限に抑える。
典型的に、線形ステープル留めデバイスは、ツール組立体が開位置と締め付け位置との間を可動であるように、第2のジョーに枢軸可能に結合されている第1のジョーを有するツール組立体を含む。知られている線形ステープル留めデバイスでは、開位置と締め付け位置との間でツール組立体を移動させるのに、第1のビームおよび第2のビームを含むIビームを使用している。このようなデバイスでは、ジョーのうちの1つが、角度付きカム表面、例えば「Zバンド」を含み、Iビームは、ツール組立体内のZバンドの近位の場所に位置付けられている。Iビームがツール組立体のジョーに沿って前進すると、Iビームの第1または第2のビームのうちの1つが、Zバンドに係合し、開位置から締め付け位置にツール組立体を押し込む。
このような線形ステープル留めデバイスでは、ツール組立体には、ツール組立体の作動の前にIビームを収納するのに、zバンドの近位に位置付けられた範囲を有さなければならない。このハウジング範囲は、ツール組立体内にデッドスペースを形成し、ステープル留めデバイスの全長を長くする。
本開示は、概して、中央本体部分によって相互接続されている第1のビームおよび第2のビームを含むIビーム構成体を有するクランプ組立体を含む外科用ステープル留めデバイス用のツール組立体に関する。ツール組立体は、互いに枢軸可能に結合され、開位置と締め付け位置との間を可動である、第1のジョーおよび第2のジョーを含む。クランプ組立体の第1のビームは、垂直支柱に枢動可能に結合され、クランプ組立体の第1のビームおよび第2のビームの長手方向軸が互いに鋭角を画定する第1の位置と、第1の長手方向軸および第2の長手方向軸が互いにほぼ平行である第2の位置とから、可動である。クランプ組立体上の枢動可能ビームの装備は、ツール組立体が開位置にあるときに、ツール組立体内のデッドスペースを最小限に抑え、ツール組立体内の有効長さを最大にするように、第1のビームが第1のジョーと係合するのを可能にする。
一態様において、本開示では、組織をステープル留めするためのツール組立体と共に使用するためのクランプ組立体を提供する。クランプ組立体は、中央本体部分、第1のビーム、および第2のビームを含む。中央本体部分は、第1の端および第2の端を有する。第1のビームは、第1の軸を画定し、中央本体部分の第1の端に枢動可能に結合されている。第1のビームは、中央本体部分の横方向外向きに延在する。第2のビームは、第2の軸を画定し、中央本体部分の第2の端にしっかり固定されている。第2のビームは、中央本体部分の横方向外向きに延在する。第1のビームは、第1の軸および第2の軸が鋭角を画定する第1の位置と、第1の軸および第2の軸が平行である第2の位置とから枢動可能である。
別の態様において、本開示では、アンビル、カートリッジ組立体、およびクランプ組立体を含むツール組立体を提供する。アンビルは、組織係合表面を有し、アンビルを長手方向に通る第1の囲まれた溝を画定する。カートリッジ組立体は、溝部材およびステープルカートリッジを含む。溝部材は、凹部と、溝部材に沿って長手方向に延在する第2の溝とを画定する。ステープルカートリッジは、組織係合表面を含み、溝部材の凹部内に受容されている。クランプ組立体は、中央本体部分、第1のビーム、および第2のビームを含む。中央本体部分は、第1の端および第2の端を有する。第1のビームは、第1の軸を画定し、中央本体部分の第1の端に枢動可能に結合されている。第1のビームは、中央本体部分の横方向外向きに延在し、第1の溝または第2の溝のうちの一方内に受容されている。第2のビームは、第2の軸を画定し、中央本体部分の第2の端にしっかり固定されている。第2のビームは、中央本体部分の横方向外向きに延在し、第1の溝または第2の溝のうち他方内に受容されている。第1のビームは、第1の軸および第2の軸が鋭角を画定する第1の位置と、第1の軸および第2の軸が平行である第2の位置とから枢動可能である。
本開示の態様において、中央本体部分は、垂直支柱および基礎部分を含む。
本開示のいくつかの態様において、基礎部分は、ねじ山つき貫通孔を画定する。
本開示の特定の態様において、垂直支柱は、円形凹部を画定するフックを含み、第1のビームは、第1のビームを中央本体部分に枢動可能に結合させるように中央凹部内に受容されている枢軸部材を支持する。
本開示の態様において、第1のビームは、中央本体部分の横方向に延在する横方向延長部を含む。
本開示のいくつかの態様において、第1のビームは、カム部材を含む遠位部分を含む。
本開示の特定の態様において、カム部材は、遠位に向く先細表面を有する。
本開示の態様において、垂直部材は、上部分を含み、第1のビームは、長手方向孔を画定する。
本開示のいくつかの態様において、第1のビームが第2の位置にあるときに、第1のビームを第2の位置に保持するように、垂直支柱の上部分が長手方向孔内に受容されている。
本開示の他の特徴は、以下の発明を実施するための形態から理解されるであろう。
例えば、本願は以下の項目を提供する。
(項目1)
組織をステープル留めするためのツール組立体と共に使用するためのクランプ組立体であって、
第1の端および第2の端を有する中央本体部分と、
第1の軸を画定し、上記中央本体部分の上記第1の端に枢動可能に結合されている第1のビームであって、上記中央本体部分の横方向外向きに延在する、第1のビームと、
第2の軸を画定し、上記中央本体部分の上記第2の端にしっかり固定されている第2のビームであって、上記中央本体部分の横方向外向きに延在する、第2のビームと、を備え、上記第1の軸および上記第2の軸が鋭角を画定する第1の位置と、上記第1の軸および上記第2の軸が平行である第2の位置とから、上記第1のビームが枢動可能である、クランプ組立体。
(項目2)
上記中央本体部分が、垂直支柱および基礎部分を含む、上記項目に記載のクランプ組立体。
(項目3)
上記基礎部分が、ねじ山つき貫通孔を画定する、上記項目のいずれか一項に記載のクランプ組立体。
(項目4)
上記垂直支柱が、円形凹部を画定するフックを含み、上記第1のビームが、枢軸部材を支持し、上記枢軸部材が、上記第1のビームを上記中央本体部分に枢動可能に結合させるように上記円形凹部内に受容されている、上記項目のいずれか一項に記載のクランプ組立体。
(項目5)
上記第1のビームが、上記中央本体部分の横方向に延在する横方向延長部を含む、上記項目のいずれか一項に記載のクランプ組立体。
(項目6)
上記第1のビームが、カム部材を含む遠位部分を含む、上記項目のいずれか一項に記載のクランプ組立体。
(項目7)
上記カム部材が、遠位に向く先細表面を有する、上記項目のいずれか一項に記載のクランプ組立体。
(項目8)
上記垂直支柱が、上部分を含み、上記第1のビームが、長手方向孔を画定し、上記第1のビームが上記第2の位置にあるとき、上記第1のビームを上記第2の位置に保持するように、上記垂直支柱の上記上部分が上記長手方向孔内に受容されている、上記項目のいずれか一項に記載のクランプ組立体。
(項目9)
ツール組立体であって、
組織係合表面を有するアンビルであって、上記アンビルを長手方向に通る第1の囲まれた溝を画定する、アンビルと、
溝部材およびステープルカートリッジを含むカートリッジ組立体であって、上記溝部材が、凹部、および上記溝部材に沿って長手方向に延在する第2の溝を画定し、上記ステープルカートリッジが、組織係合表面を含み、上記溝部材の上記凹部内に受容されている、カートリッジ組立体と、
クランプ組立体であって、
第1の端および第2の端を有する中央本体部分、
上記中央本体部分の上記第1の端に枢動可能に結合されている、第1の軸を画定する第1のビームであって、上記中央本体部分の横方向外向きに延在し、上記第1の溝または上記第2の溝のうちの一方内に受容されている、第1のビーム、ならびに
上記中央本体部分の上記第2の端にしっかり固定されている第2の軸を画定する第2のビームであって、上記中央本体部分の横方向外向きに延在し、上記第1の溝または上記第2の溝のうちの他方内に受容されている、第2のビームを含み、上記第1のビームが、上記第1の軸が上記第2の軸と鋭角を画定する第1の位置と、上記第1の軸および上記第2の軸が平行である第2の位置とから、枢動可能である、クランプ組立体と、を備える、ツール組立体。
(項目10)
上記中央本体部分が、垂直支柱および基礎部分を含む、上記項目に記載のツール組立体。
(項目11)
上記中央本体部分の上記基礎部分が、ねじ山つき貫通孔を画定する、上記項目のいずれか一項に記載のツール組立体。
(項目12)
上記垂直支柱が、円形凹部を画定するフックを含み、上記第1のビームが、枢軸部材を支持し、上記枢軸部材が、上記中央本体部分に上記第1のビームを枢動可能に結合させるように、上記円形凹部内に受容されている、上記項目のいずれか一項に記載のツール組立体。
(項目13)
上記第1のビームが、上記中央本体部分の横方向に延在する横方向延長部を含む、上記項目のいずれか一項に記載のツール組立体。
(項目14)
上記第1のビームが、カム部材を含む遠位部分を含む、上記項目のいずれか一項に記載のツール組立体。
(項目15)
上記カム部材が、遠位に向く先細表面を有する、上記項目のいずれか一項に記載のツール組立体。
(項目16)
上記垂直支柱が、上部分を含み、上記第1のビームが、長手方向孔を画定し、上記第1のビームが上記第2の位置にあるとき、上記第1のビームを上記第2の位置に保持するように、上記垂直支柱の上記上部分が上記長手方向孔内に受容されている、上記項目のいずれか一項に記載のクランプ組立体。
(摘要)
ツール組立体は、第1のジョーおよび第2のジョーと、クランプ組立体と、を含み、クランプ組立体は、本体部分と、第1のビームおよび第2のビームと、を有し、第1のビームおよび第2のビームは、第1のジョーおよび第2のジョーと係合している。クランプ組立体は、ツール組立体を開位置から締め付け位置に移動させるように、第1のジョーおよび第2のジョーに関係して可動である。第1または第2ビームのうちの一方は、このビームが、ジョーが開位置にあるときにツール組立体の枢動可能ジョーと係合することができるように、クランプ組立体の本体部分に枢動可能に結合されている。これにより、ツール組立体が開位置にあるときに、ツール組立体内のデッドスペースを最小限に抑えるように、クランプ組立体がジョー間に位置付けられていることが可能になる。
以下の添付図面および発明を実施するための形態において、本開示の1つ以上の態様の詳細を明らかにする本開示に記載の技法の他の特徴、目的、および利点は、発明を実施するための形態および図面、ならびに特許請求の範囲から明らかになるであろう。
ツール組立体が開位置にある本開示の態様を含む、ツール組立体の側面斜視図である。 開示されるツール組立体のクランプ組立体が引っ込み位置にあり、ツール組立体が開位置にあるときの図1の切断線2-2に沿って取られた断面図である。 クランプ組立体の第1のビームが締め付け部材の本体部分とは別個である図2に示されたツール組立体の締め付け部材の下からの側面斜視図である。 締め付け部材の第1のビームが締め付け部材の本体部分に結合され、直角に向いている状態の、図3に示されたツール組立体の締め付け部材の下からの側面斜視図である。 締め付け部材の第1のビームが直角に向いている状態の、図4に示されたツール組立体の締め付け部材の上からの側面斜視図である。 締め付け部材の第1のビームが枢動向きである状態の、図5に示されたツール組立体の締め付け部材の上からの側面斜視図である。 図2に示された詳細範囲の拡大図である ツール組立体が開位置と締め付け位置との間に位置付けられている状態で、クランプ組立体がその引っ込み位置からその前進位置に向かって移動する際の図1の切断線2-2に沿って取られた断面図である。 図8に示された詳細範囲の拡大図である。 図8の切断線10-10に沿って取られた断面図である。 ツール組立体が締め付け位置にある状態で、クランプ組立体がその前進位置に向かって移動する際の図1の切断線2-2に沿って取られた断面図である。 図11に示された詳細範囲の拡大図である。
ここでは、いくつかの図の各々で同じ参照番号が同一または対応する要素を示す図面を参照して、外科用ステープル留めデバイス用の開示されるツール組立体を詳細に説明する。ただし、本明細書に記載の本開示の態様が、単に、本開示の例示であり、様々な形態で具体化され得ることが理解されるべきである。よく知られている機能または構成は、余計な詳細で本開示を不明瞭にしないように、詳細には説明しない。そのため、本明細書に開示される具体的な構造的および機能的詳細は、限定するものとして解釈されるものではなく、単に、事実上いかなる適切に詳細な構造でも本開示を様々に採用するように当業者に教示するための、特許請求の範囲の原則および代表的な原則として解釈されるものである。
この発明を実施するための形態では、臨床医のより近くにあるデバイスのその部分を指すのに、概して「近位」という用語が使用される一方、臨床医からより離れたデバイスのその部分を指すのに、概して「遠位」という用語が使用される。加えて、内視鏡、腹腔鏡、関節鏡、および/または小径の切開またはカニューレを通して行われる他の任意の処置を指すのに、概して「内視鏡」という用語が使用される。さらに、医師、看護師、および補助員を含む医療関係者を指すのに、概して「臨床医」という用語が使用される。最後に、本明細書で使用される場合、「平行な」および「直角な」という用語は、真の平行および真の直角から約+または-10度までで、ほぼ平行、またほぼ直角である関連構成を含むと理解される。
外科用ステープル留めデバイス用の開示されるツール組立体は、アンビルを支持する第1のジョー、およびカートリッジ組立体を支持する第2のジョーを含む。ツール組立体は、第1のジョーと係合している第1のビーム、および第2のジョーと係合している第2のビームを有する締め付け部材を含む。締め付け部材は、開位置と締め付け位置との間でツール組立体を枢動させるようにツール組立体を通して可動である。本開示の態様において、ビームのうちの1つが、第1のビームおよび第2のビームがツール組立体の開位置および締め付け位置で第1のジョーおよび第2のジョーと係合することができるように、締め付け部材の本体部分に枢動可能に結合されている。締め付け部材上の枢動可能ビームを枢動させることによって、ツール組立体の有効長さ、すなわち、組織をステープル留めするために使用されるツール組立体の長さを最大にするように、ツール組立体内のデッドスペースが最小限に抑えられ得る。
図1および図2は、本開示の例示的な態様を含む、概してツール組立体10として示されるツール組立体を示す。ツール組立体10は、アンビル12、カートリッジ組立体14、およびクランプ組立体16(図2)を含む。カートリッジ組立体14は、溝18およびステープルカートリッジ20を含む。溝部材18は、ステープルカートリッジ20を受容する凹部22を画定する。ステープルカートリッジ20が、溝部材18の凹部22内にしっかりまたは解放可能に支持され得ることが想定されている。ステープルカートリッジ20は、組織係合表面24aを有し、ナイフ細長穴26(図1)と、ナイフ細長穴26の各々の側に位置付けられている一連のステープルポケット28とを画定する本体24を含む。詳細には示されていないが、ステープルポケット28の各々が、ステープルおよびプッシャを受容する。当技術分野において知られているように、作動スレッド(図示せず)が、プッシャとの係合状態でステープルカートリッジ20からステープルを出すように、ステープルカートリッジ20を通して可動である。
アンビル12は、組織係合表面12a(図1)を含み、図1に示される開位置と、図11に示される締め付け位置との間のカートリッジ組立体14に関係したアンビル12の動きを促進するように、枢軸部材30によって溝部材18に結合されている。締め付け位置では、アンビル12の組織係合表面12aが、ステープルカートリッジ20の本体24の組織係合表面24aと並置されている。
本開示の態様において、カートリッジ組立体14は、図示のように、アンビル12が外科用ステープル留めデバイスおよびカートリッジ組立体14に関係して枢動するのに従って、外科用ステープル留めデバイス(図示せず)に結合され、ツール組立体10を外科用ステープル留めデバイスのアクチュエータ組立体(図示せず)に固定するように適合されている取り付けハブ36を含む。カートリッジ組立体14の溝部材18が枢軸部材を中心としてアンビル12に結合され得、およびカートリッジ組立体14が、開位置と締め付け位置との間を、アンビル12および外科用ステープル留めデバイス(図示せず)に関係して枢動することができるように、アンビル12が、枢動不能または固定式に外科用ステープル留めデバイスに固定され得ることが想定されている。
図2~図7は、ツール組立体10のクランプ組立体16を示す。クランプ組立体16は、中央本体部分40、中央本体部分40の一方の端に結合されている第1のビーム42、および中央本体部分40の他方の端に結合されている第2のビーム44を含む。第1のビームおよび第2のビーム42、44は、中央本体部分40から横方向に延在する。中央本体部分40は、ねじ山つき貫通孔48および垂直支柱50を画定する基礎部分46(図3)を含む。垂直支柱50は、基礎部分46と一体形成されているか、または基礎部分46に結合されている第1の端部分と、円形凹部52を画定するフック部分51を含む第2の端部分と、を含む。第2のビーム44は、基礎部分46と一体形成され得る。代替的に、第2のビーム44は、基礎部分46と別個に形成され、例えば溶接を含む、任意の知られている締結技法を使用して、基礎部分46にしっかり固定され得る。
第1のビーム42は、本体部分60および横方向延長部62を含む。本体部分60は、孔68を画定する近位部分64、およびカム部材70を含む遠位部分を含む。カム部材70は、第1のビーム42の遠位端から下方に近位に先細になっている遠位に向く表面70aを有する。本体部分60は、孔68内に位置付けられている枢軸部材66(図7)を支持する。クランプ組立体16の中央本体部分40のフック部分51は、フック部分51が枢動部材66を中心として、開口68を通って下方に延在するように、第1のビーム42にある開口68内に受容されている。この位置では、枢軸部材66は、フック部分51の円形凹部52内に受容されている。フック部分51の円形凹部52内の枢軸部材66の受容により、クランプ組立体16の第1のビーム42が第1の位置(図2)から第2の位置(図8)に枢軸部材66を中心として回転することができるように、クランプ組立体16の中央本体部分40に第1のビーム42を枢軸可能に結合させる。第1の位置および第2の位置では、第1のビーム42の長手方向軸「T」(図9)がアンビル12の長手方向軸「X」に平行である。第1の位置では、第1のビーム42およびアンビル12の長手方向軸「X」によって画定されている長手方向軸「T」が、ツール組立体10の長手方向軸「Y」とともに鋭角「Z」(図7)を画定する。第2の位置では、第1のビーム42の長手方向軸「T」と、アンビル12の長手方向軸「X」と、ツール組立体10の長手方向軸「Y」とがすべてほぼ平行である。
クランプ組立体16の第1のビーム42の本体部分60は、第1のビーム42にある開口68に連通し得る長手方向孔72(図5)を含む。第1のビーム42が、第1のビーム42を第2の位置(図5)に保持するように、その第2の位置に移動すると、長手方向孔が垂直支柱50の上部分74を受容する。より具体的には、垂直支柱50の上部分74は、第1のビームをその第2の位置に保持するように、摩擦ばめ式に第1のビーム42の長手方向孔70内に受容される。
アンビル12は、第1のビーム42の横方向延長部62を受容する囲まれた溝80(図10)を画定する。同様に、溝部材18が、クランプ組立体16の第2のビーム44を受容する溝または凹部82を画定する。クランプ組立体16が引っ込み位置(図2)から前進位置(図11)に移動すると、第1のビーム42と第2のビーム44とが、その開位置からその締め付け位置にツール組立体10を移動させるように、アンビル12の溝80とカートリッジ組立体14の溝82とにそれぞれ沿って移動する。溝部材18が溝または凹部を画定する必要がなく、および第2のビーム44が溝部材18の外側表面に沿って移動することができることが想定されている。
本開示の態様において、ツール組立体10は、クランプ組立体16の中央本体部分40の基礎部分46(図3)によって画定されているねじ山つき貫通孔48内に受容されている打ち込みネジ90を含む。打ち込みネジ90が外科用ステープル留めデバイスの作動を介して回転されると(図示せず)、クランプ組立体16が、ツール組立体10を作動させるように、すなわち、ステープルカートリッジ20からステープルを放ち、ステープルカートリッジ20とアンビル12との間に締め付けられている組織を切断するように、ツール組立体10内でその引っ込み位置と前進位置との間を長手方向に平行移動する。
図2および図7は、クランプ組立体16が引っ込み位置にあり、ツール組立体10が開位置にある状態であるツール組立体10を示す。この位置では、カム部材70を含む第1のビーム42の遠位部分が、アンビル12の溝80(図10)に位置が揃っている。開位置では、第1のビームおよびアンビル12それぞれの長手方向軸「T」および「Y」と、ツール組立体10の長手方向軸「Y」とによって画定される角度「Z」が、鋭角である。本開示のいくつかの態様において、開位置では、角度「Z」は、約10度~約18度である。本開示の特定の態様において、開位置では、角度Zは、約13度である。他の角度位置も想定されている。
図8~図10は、クランプ組立体16が、その引っ込み位置からその前進位置への、図8では矢印「A」で示されている方向に前進し始める際のツール組立体10を示す。第1のビーム42がアンビル12によって画定されている溝内80を移動するのに従って、第1のビーム42およびアンビル12は、締め付け位置への、図8では矢印「B」の方向に枢動する。クランプ組立体16の垂直支柱50の上部分74の遠位端がクランプ組立体16の第1のビーム42の長手方向孔72内に受容されている場合、垂直支柱50の上部分72間の係合が第1のビーム42の自由な枢動運動を邪魔する。第1のビーム42およびアンビル12それぞれの長手方向軸「T」及び「X」と、ツール組立体16の長手方向軸「Y」との間に画定される角度「Z」は、約2度~約6度であり、約4であってもよい。
図11および図12は、ステープル(図示せず)がツール組立体10から放たれる際の完全締め付け位置のツール組立体10を示す。第1のビーム42およびアンビル12それぞれの長手方向軸「T」および「X」と、ツール組立体10の長手方向軸「Y」との間に画定される角度「Z」が、約0度であり、すなわち、第1のビーム42およびアンビル12それぞれの長手方向軸「T」および「X」と、アンビル12の長手方向軸「Y」は、それぞれほぼ平行である。図示のように、クランプ組立体16の垂直支柱50の上部分74は、第1のビーム42を、ツール組立体10に平行な第2の位置に保持するように、クランプ組立体16の第1のビーム42の長手方向孔72内に完全に受容されている。
上記のように、開示されるクランプ組立体16は、枢動可能ジョーが開位置にあるとき、クランプ組立体16の第1のビーム42がツール組立体10の枢動可能ジョー、例えばアンビル12と係合するのを可能にする。これは、クランプ組立体16が、ツール組立体10内のデッドスペースを最小限に抑えるように、ツール組立体の開位置で、ジョー間に、すなわち、アンビルとカートリッジ組立体との間に位置付けられるのを可能にする。
当業者であれば、本明細書に具体的に説明され、添付図面に示されているデバイスおよび方法が本開示の非限定的で例示的な態様であることを理解するであろう。本開示のある例示的な態様に関係して示されるか、または説明されている要素および特徴が、本開示の範囲を逸脱しない限り、別の要素および特徴と組み合わせられ得ることが想定されている。同様に、当業者であれば、本開示の上記の態様に基づき、本開示のさらなる特徴および利点を理解するであろう。したがって、本開示は、添付の特許請求の範囲によって示されるものを除いて、特に示され、説明されたものに限定されるものではない。

Claims (16)

  1. 組織をステープル留めするためのツール組立体と共に使用するためのクランプ組立体であって、
    第1の端および第2の端を有する中央本体部分と、
    第1の軸を画定し、前記中央本体部分の前記第1の端に枢動可能に結合されている第1のビームであって、前記中央本体部分の横方向外向きに延在する、第1のビームと、
    第2の軸を画定し、前記中央本体部分の前記第2の端にしっかり固定されている第2のビームであって、前記中央本体部分の横方向外向きに延在する、第2のビームと、を備え、前記第1の軸および前記第2の軸が鋭角を画定する第1の位置と、前記第1の軸および前記第2の軸が平行である第2の位置とから、前記第1のビームが枢動可能である、クランプ組立体。
  2. 前記中央本体部分が、垂直支柱および基礎部分を含む、請求項1に記載のクランプ組立体。
  3. 前記基礎部分が、ねじ山つき貫通孔を画定する、請求項2に記載のクランプ組立体。
  4. 前記垂直支柱が、円形凹部を画定するフックを含み、前記第1のビームが、枢軸部材を支持し、前記枢軸部材が、前記第1のビームを前記中央本体部分に枢動可能に結合させるように前記円形凹部内に受容されている、請求項1に記載のクランプ組立体。
  5. 前記第1のビームが、前記中央本体部分の横方向に延在する横方向延長部を含む、請求項1に記載のクランプ組立体。
  6. 前記第1のビームが、カム部材を含む遠位部分を含む、請求項1に記載のクランプ組立体。
  7. 前記カム部材が、遠位に向く先細表面を有する、請求項6に記載のクランプ組立体。
  8. 前記垂直支柱が、上部分を含み、前記第1のビームが、長手方向孔を画定し、前記第1のビームが前記第2の位置にあるとき、前記第1のビームを前記第2の位置に保持するように、前記垂直支柱の前記上部分が前記長手方向孔内に受容されている、請求項2に記載のクランプ組立体。
  9. ツール組立体であって、
    組織係合表面を有するアンビルであって、前記アンビルを長手方向に通る第1の囲まれた溝を画定する、アンビルと、
    溝部材およびステープルカートリッジを含むカートリッジ組立体であって、前記溝部材が、凹部、および前記溝部材に沿って長手方向に延在する第2の溝を画定し、前記ステープルカートリッジが、組織係合表面を含み、前記溝部材の前記凹部内に受容されている、カートリッジ組立体と、
    クランプ組立体であって、
    第1の端および第2の端を有する中央本体部分、
    前記中央本体部分の前記第1の端に枢動可能に結合されている、第1の軸を画定する第1のビームであって、前記中央本体部分の横方向外向きに延在し、前記第1の溝または前記第2の溝のうちの一方内に受容されている、第1のビーム、ならびに
    前記中央本体部分の前記第2の端にしっかり固定されている第2の軸を画定する第2のビームであって、前記中央本体部分の横方向外向きに延在し、前記第1の溝または前記第2の溝のうちの他方内に受容されている、第2のビームを含み、前記第1のビームが、前記第1の軸が前記第2の軸と鋭角を画定する第1の位置と、前記第1の軸および前記第2の軸が平行である第2の位置とから、枢動可能である、クランプ組立体と、を備える、ツール組立体。
  10. 前記中央本体部分が、垂直支柱および基礎部分を含む、請求項9に記載のツール組立体。
  11. 前記中央本体部分の前記基礎部分が、ねじ山つき貫通孔を画定する、請求項10に記載のツール組立体。
  12. 前記垂直支柱が、円形凹部を画定するフックを含み、前記第1のビームが、枢軸部材を支持し、前記枢軸部材が、前記中央本体部分に前記第1のビームを枢動可能に結合させるように、前記円形凹部内に受容されている、請求項9に記載のツール組立体。
  13. 前記第1のビームが、前記中央本体部分の横方向に延在する横方向延長部を含む、請求項9に記載のツール組立体。
  14. 前記第1のビームが、カム部材を含む遠位部分を含む、請求項9に記載のツール組立体。
  15. 前記カム部材が、遠位に向く先細表面を有する、請求項14に記載のツール組立体。
  16. 前記垂直支柱が、上部分を含み、前記第1のビームが、長手方向孔を画定し、前記第1のビームが前記第2の位置にあるとき、前記第1のビームを前記第2の位置に保持するように、前記垂直支柱の前記上部分が前記長手方向孔内に受容されている、請求項10に記載のクランプ組立体。
JP2021107304A 2020-07-09 2021-06-29 枢動可能締め付けビームを有するツール組立体 Pending JP2022016323A (ja)

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