JP2008512173A - 手術用ステープル及びこれを備える手術用腔内ステープラー - Google Patents
手術用ステープル及びこれを備える手術用腔内ステープラー Download PDFInfo
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Abstract
手術用ステープル(10)が提供され、そこでは手術部位の堅固な縫合と、前記手術用ステープルを有する手術用の腔内ステープラーとによって、手術中の安定性が増加する。 前記手術用ステープル(10)は、第1縫合組織(1000)と、この第1縫合組織(1000)に接触する第2縫合組織(1100)を密接に縫合し、その手術用ステープル(10)が含むものは、その第1縫合組織(1000)の表面に密着して伸びる中央部(10a)と、中央部(10a)の両端から曲がり第1縫合組織(1000)と第2縫合組織(1100)に突き刺さる一対の突き刺し部(10b)と、さらに各突き刺し部(10b)から曲がり、直線状に伸び、第1縫合組織(1000)と第2縫合組織(1100)に互いに密接に付着する一対のレッグ部(100)である。これにより、手術用ステープル(10)を用いて、両縫合組織(1000,1100)が堅固に縫合され、手術中の安定性を増加させることが出来る。
【選択図】 図1
【選択図】 図1
Description
本発明は手術用ステープル及びこれを備える手術用腔内ステープラーに関し、より詳しくは、手術部位を堅固に縫合して手術の時の安定性を高めるステープル及びこれを備える手術用腔内ステープラーに関するものである。
食道摘出後の食道の再生、胃の切除、小腸及び大腸の切除などにおいて切断した両側部位を縫合して手術する場合、手術上の難しさのためにこれをさらに完璧に連結したり、切断された端部を縫合する手術法及びツールに対する研究が行われつつある。
特に、身体内部の手術中、例えば、胃全摘出後に横隔膜内部で特定操作を行うのに難しい所に位置した食道の端部と小腸を連結する場合や直腸を肛門に近い部位まで切除した後、大腸と直腸の残った部分を連結する場合などにおいては多くの困難があった。つまり、胃全摘出後に食道を小腸に連結するためには、肋骨と横隔膜を切断し、胸廓内へ入る大手術を行わなければならず、直腸を手術する場合には、肛門を除去して腹部に大腸を露出させて排出物を受け取らなければならないという障害が残った。
このような手術時の難しさを解決するために、腔内ステープラーが開発され、これは食道と小腸の連結、腸同士の連結、特定の部分の切除或いは血管連結に使用される。米国特許公報第5,104,025号には、このような腔内ステープラーに対する内容が詳細に開示されている。
腔内ステープラーは、手術中に腸管を切断した後、新たに腸管の連結を維持するために腸管同士の縫合を行うのに用いられる。この過程は手術中に多くの時間と労力が必要であり、また常に一定の結果を要求される。この過程を簡単で安全に行える腔内ステープラーは、円状ステープラー(EEA)と線状ステープラーに分けられる。線状ステープラーは、更に、組織を切りながら縫合するもの(GIA)と縫合のみを行うもの(TA)に分けられる。
しかし、このような腔内ステープラーの場合、通常は、プッシュ部材がステープルを押してステープルが手術部位を貫通しながら、溝が形成された下部の支持台に押さえられて弧状に屈曲する。人体の手術時に使用されるステープルは、一般文具用ステープル、つまり、いわゆるホチキス針と同じ外観であるが、寸法や材質は文具用ステープルと異なる。したがって、文具用の形態では、縫合手術部位に悪い影響を与える。以下では、このような形状に関する問題を、図7を参照して、さらに詳細に説明する。
図7は、従来型ステープルの動作段階を示す概略図で、従来型ステープルを用いて組織を縫合する過程を段階別に示す。
次に、従来型ステープルを用いて組織縫合の状態を説明する。まず、図7の(A)に示すように、上側ではプッシュ部材73がステープル70を押しながら、下側ではステープル70を曲げるための溝751を持つ支持台75を用意する。 ステープル70が縫合中の両組織(7000、7100)に突き刺さるのは、このステープル70をプッシュ部材73で上部矢印方向に押すからであり、支持台75が縫合中の組織(7000、7100)の下部へ近接するのは、下部の矢印方向による。
このようにプッシュ部材73と支持台75が同時に作動するので、図7の(B)に示すように、ステープル70が縫合中の組織(7000、7100)を貫通しながら、下部へ伸びるステープル70のレッグ部70aが支持台75の溝751に接してレッグ部70aがラウンド形態に屈曲する。
プッシュ部材73と支持台75が矢印方向に継続して動くことによって、図7の(C)に示したように、結局、ステープル70のレッグ部70aは完全に屈曲し、縫合中の組織7100の下部に接して縫合中の組織(7000、7100)を密着縫合する。しかし、このような縫合手術によってステープル70のレッグ部70aが相互対向してラウンド形態に屈曲するので、中間の矢印で示したようにレッグ部70aの各端部にはこれらを互いに押し付ける斥力が作用する。これとは対照的に、両側矢印で示したように、貫通部位と近いレッグ部70a部分には、屈曲によって中央へ向かう引力が作用する。
その結果、同一のレッグ部70aといっても方向が互いに異なる張力が作用するので、縫合組織(7000、7100)に影響を与えてその張力が不均一になる。このように張力が不均一になるので、レッグ部70aの端部に位置した縫合組織は噛み合って破れることがあり、貫通部位に近いレッグ部70aに位置する縫合組織は張力が不足して出血や漏出が生じることもある。
特に、図7の(D)のように腔内ステープラーを使用して手術部位を縫合する時に過度な力が作用する場合には、ステープル70におけるレッグ部70aの端部が縫合組織(7000、7100)の上部側へ向かって縫合組織(7000、7100)を再貫通する。したがって、縫合組織(7000、7100)に全部で4個の穿孔が形成され、縫合組織(7000、7100)に出血が生じるだけでなく、手術後にも縫合部位が離れて再手術が必要となるなどの深刻な問題を招く。
本発明は上記問題を解決するためのもので、本発明の目的は、手術の時に組織を堅固に縫合でき、出血を起こさず、安全な構造を有するようなステープルを提供することにある。また、他の目的は、前記ステープルを備え、操作が容易で構造が簡単な腔内ステープラーを提供することにある。
上記目的を達成するため、本発明の一態様によれば、第1縫合組織と、これに接する第2縫合組織とを密着縫合するための手術用ステープルを提供するもので、この手術用ステープルは、前記第1縫合組織の一面に密着して伸びる中心部と、前記中心部の両端から曲げられて、前記第1縫合組織及び前記第2縫合組織を貫通する一対の貫通部と、前記各貫通部から曲げられ、線状に伸びて、前記第1縫合組織及び前記第2縫合組織を互いに密着結合させる一対のレッグ部とを含む。
各貫通部に連結される各レッグ部は、各貫通部と鋭角をなしながら折曲されることができる。ここで、一対のレッグ部は相互対向するように折曲されることができる。一対のレッグ部の両端は互いに接するのが好ましい。手術用ステープルはチタニウム板材からなるのが好ましい。手術用ステープルは第1縫合組織及び第2縫合組織と平行に複数付着されて、第1縫合組織及び第2縫合組織を密着縫合することができる。また、手術用ステープルは第1縫合組織及び第2縫合組織に実質的に円状に複数付着され、第1縫合組織及び第2縫合組 織を密着縫合することもできる。
本発明の他の態様によれば、手術用ステープルを備えた手術用腔内ステープラーが提供されて、これは、前記腔内ステープラーの一側に装着されるトリガーと、前記トリガーの作動時に前記トリガーの作動部に接して前記腔内ステープラーの内部を貫通して伸びる弾性部材と、前記弾性部材に連結され、前記弾性部材と協働して前記手術用ステープルの両端部を曲げる溝が下部に形成される支持台と、支持台を収納し、縫合組織を貫通した前記手術用ステープルの前記両端部が位置する内部空間が形成され、弾性部材の作動によって支持台を前記手術用ステープルの前記両端部側へガイドするハウジングとを含む。
本発明による手術用腔内ステープラーは、トリガーの作動によってトリガーが弾性部材に接する前までステープルが縫合組織を貫通するようにステープルを押し付けるプッシュ部材をさらに含むことができる。
また、本発明による手術用腔内ステープラーは、複数のステープルと平行に離隔されてプッシュ部材の動作時に縫合組織を切断するカッターをさらに含むことができる。
そして、本発明による手術用腔内ステープラーは、支持台の後面に位置して弾性部材の作動によって支持台を押し出すスライディング部材をさらに含むことができる。
上述のように多様な構造の腔内ステープラーを利用して本発明によるステープルで縫合組織を堅固に密着縫合するので、手術の時の安定性確保が容易で、縫合部位に出血が殆どなくて手術後の後遺症がない利点がある。
本発明による手術用ステープルは、そのレッグ部が線状に伸びて縫合組織を密着させるので、縫合部位の張力を均等にすることができ、手術後に出血が発生しない利点がある。
また、ステープルのレッグ部は貫通部と鋭角をなしながら屈曲するので、縫合組織を堅固に密着縫合することができる。
また、一対のレッグ部は互いに対向して屈曲するので、縫合組織がさらに堅固に密着縫合される。
一対のレッグ部の両端は互い接しているので、ステープルが縫合組織に堅固に固定される利点がある。
手術用ステープルはチタニウム板材からなるので、人体に無害で耐久性、変形性及び変形後の維持特性が優れている。
手術用ステープルは縫合組織と平行に複数付着されたり、実質的に円状で複数付着されて縫合組織をさらに堅固に密着縫合できるので、手術後の後遺症が少なくなる。
本発明による手術用腔内ステープラーは、支持部材を収納し、縫合組織を貫通したステープルの端部が位置する内部空間が形成され、弾性部材の作動によって支持台をステープルの端部側へガイドするハウジングを含むので、縫合組織の縫合手術の段階的な実施が可能で縫合組織を堅固に縫合することができる。
また、本発明による手術用腔内ステープラーは、トリガーが弾性部材に接する前までステープルが縫合組織を貫通するようにステープルを押し付けるプッシュ部材をさらに含むので、前述した段階的な縫合手術を現実的に安全に実現することができる。
本発明による手術用腔内ステープラーは、縫合組織の縫合と共にこれを切断するカッターを含むので、2種類の手術作業を同時に行うことができるので、手術が容易で安全に行われる利点がある。
また、本発明による手術用腔内ステープラーは支持台の後面に位置して弾性部材の作動によって支持台を押し出すスライディング部材を含むので、その構造上手術が容易な利点がある。
上述の、又は他の特徴および優位事項は本発明に備わり、詳細な実施例と付属する図面の説明により、更に明らかにする。
以下、図1から図6を参照して本発明の実施の形態を説明する。このような実施の形態は、単に本発明を例示するものに過ぎず、本発明がこれに限定されるわけではない。
図1は、本発明の一実施の形態によるステープルを利用して手術した状態を示す概略的な図面で、縫合組織として腸(1000、1100)を互いに連結した状態を概略的に示す図面である。ここで、腸(1000、1100)は単に本発明を適用した縫合組織を例示するものに過ぎず、本発明がこれに限定されるわけではない。したがって、食道などの他の縫合組織にも本発明を適用することができる。
図1に示したように、A部位では腸(1000、1100)をステープル10で連結し、一列に平行に配置された複数のステープル10の間をカッターで切断して腸(1000、1100)を互いに密着縫合する。第1縫合組織である腸1000と第2縫合組織である腸1100は、手術の時に接して互いに密着縫合される。図1で手術用ステープル10は腸(1000、1100)と平行に複数付着されて腸(1000、1100)を密着縫合する。
図1の拡大円は腸(1000、1100)を貫通して密着縫合したステープル10の断面構造を示す。図1の拡大円から分かるように、ステープル10は腸1000の一面に密着されて伸びる中心部10a、中心部10aの両端に連結されて折曲して腸(1000、1100)を貫通する一対の貫通部10b、そして各貫通部10bに連結されて折曲し、線状に伸びて腸(1000、1100)を密着させる一対のレッグ部10cを含む。必要に応じてステープル10は他の部分を含むこともできる。このようなステープル10の構造によって密着縫合された腸(1000、1100)の張力を均一にして縫合手術を安全に実施することができる。
特に、ステープル10のレッグ部10cは相互対向するように屈曲されるので、腸(1000、1100)を堅固に密着縫合することができる。また、ステープル10の貫通部10bに連結されるレッグ部10cは、貫通部10bからラウンドで形成されず、線状として角度(α)を形成する。ここで、角度(α)は鋭角で形成されるので、レッグ部10cは腸1100の表面に向かって線状に伸びて腸(1000、1100)を堅固に密着させる。このように鋭角を形成するためにレッグ部10cが腸(1000、1100)を貫通する可能性が殆どなく、出血の危険性が少ない。さらに、ステープル10のレッグ部10cの両端10dが互いに接しているので、レッグ部10cが腸(1000、1100)を再び貫通する可能性は殆どない。したがって、手術の時の安全性を確保して手術後の後遺症がない利点がある。
図2は本発明の一実施の形態によるステープルを利用して手術した他の状態を示す概略的な図面で、胃全摘出の後に食道2000と腸2100を連結して縫合した状態を示す。ここで、食道2000と腸2100は単に本発明による縫合組織を例示するものに過ぎず、本発明がこれに限定されるわけではない。したがって、他の縫合組織にも本発明を適用することができる。
互いに異なる形態の腔内ステープラーを使用してB部位及びC部位を縫合することができる。B部位の場合、食道2000と腸2100を連結する前に腸2100を折った後、縫合する前のC部位を通じて腔内ステープラーを挿入して食道2000の内部と連結し、腔内ステープラー10で食道2000と腸2100を同時に縫合しながら切断して飲食物が通過するようにホール2101を形成する。手術用ステープル10は食道2000と腸2100に実質的に円状、つまり、円状であるか円状に近く複数付着されて食道2000と腸2100を密着縫合する。次に、C部位の開口された腸2100を相異なる形態の他の腔内ステープラーを使用して密着縫合する。その結果、食道2000と腸2100を互いに連通させて食べ物がよく移動することができる。
図2の拡大円には食道2000と腸2100を密着縫合したステープル10を拡大して示す。図2の拡大円に示したように、ステープル10を板材形態に形成することによって、食道2000と腸2100にステープル10が密着する面積を増やして密着縫合を行う時の信頼性を向上させることができる。ステープル10の素材としては耐久性に優れて腐食されず、人体に無害なチタニウムを使用することができる。
図3は本発明の一実施の形態によるステープルの動作状態を示す概略的な図面で、図1に示したような形態のステープルで縫合組織を縫合する過程を概念的に示す図面である。以下では本発明によるステープルで縫合組織を縫合する過程を、順次、説明する。
まず、図3の(A)に示したように、プッシュ部材13を使用してステープル10を貫通対象である縫合組織3000、3100側へ矢印方向に押し付ける。その結果、図3の(B)のようにステープル10が縫合組織3000、3100を貫通し、その中心部10aが縫合組織3000の上面に密着固定される。プッシュ部材13はステープル10の中心部10aを継続して押しているので、中心部10aは縫合組織3000の上面に継続して密着固定される。
次に、図3の(C)に示したように、下部から支持台15をステープル10のレッグ部10c側へ接近させる。支持台15には溝151が形成されているので、支持台15がステープル10のレッグ部10cと接してレッグ部10cを屈曲させる。このような過程によって、図3の(D)に示したように、レッグ部10cは内側に押し付ける力を受け、組織を貫通した部位で組織のための支持を受けるので、この部位が先に屈曲する。その結果、レッグ部10cが線状に折曲されて縫合組織3100の下面に密着固定される。このような過程によって、縫合組織3000、3100を堅固に密着縫合することができるので、手術の時の安全性を確保することができ、そのために縫合部位の出血危険も減少する。
図3に示したように、本発明ではプッシュ部材13を用いた縫合組織3000、3100の貫通作業と支持台15を利用したステープル10のレッグ部10cの屈曲作業を同時に実施せず、順次、実施するので、レッグ部10cを線状に屈曲させることができる。そのために縫合組織3000、3100の張力を均一にすることができるので、縫合状態が堅固に維持される利点がある。このように、順次、手術用ステープル10を利用して縫合組織3000、3100を密着縫合する手術は、手術用ステープル10を備える手術用腔内ステープラーによって可能である。以下、図4〜図6を参照して、図3のような形態で縫合組織に縫合される手術用ステープル10を備えた手術用腔内ステープラーについて詳細に説明する。
図4は、本発明の第1の実施の形態による腔内ステープラー100の概略的な斜視図で、組織を切断しながら縫合する線状ステープラー(GIA)を示す。図4に示した腔内ステープラー100は、図1のA部位を密着縫合するのに使用する。図4の左側拡大円には本体103の内部構造を概略的に示し、中央拡大円には下部挿入棒107をZ軸方向から見た状態を示し、右側拡大円には上部挿入棒105をDD線に沿って切断した断面を示す。図4に示した本発明の第1の実施の形態による腔内ステープラー100は、単に本発明を例示するためのものであり、本発明がここに限定されるものではない。したがって、他の形態の腔内ステープラーを使用することもできる。
図4では、腸(1000、1100)の間に腔内ステープラー100の挿入棒(105、107)を広げて上下にそれぞれ挿入し、本体103に付着されたプッシュ部材ボタン1091及びトリガー101を使用して腸(1000、1100)を切断した後に密着縫合する。
図4に示した本発明の第1の実施の形態による手術用腔内ステープラー100は、手術用ステープル10を備え、トリガー101、弾性部材111、支持台113及びハウジング115を含む。このような各部品は本体103に有機的に結合され、これらの他に、必要に応じて、他の部材を含むこともできる。
トリガー101は手術用腔内ステープラー100の一側に装着され、手で作動することができる。弾性部材111は腔内ステープラー100の本体103に沿ってその内部を貫通して長く伸び、内部にスプリング1111を含む。トリガー101を作動させる場合、トリガー101の作動部1011に弾性部材111が接する。図4の右側拡大円に示したように、支持台113はその後面が弾性部材111に連結されて弾性部材111によって作動する。支持台113には溝1131が形成されてステープル10の両端部を屈曲させる。
図4の右側拡大円に示したように、支持台113を受納するようにハウジング115に内部空間が形成される。トリガー101の操作によって縫合組織(1000、1100)を貫通したステープル10の端部はハウジング115の内部空間に位置する。ハウジング115の内部空間に位置する支持台113は弾性部材111の作動で内部空間外部に移動する。ここで、支持台113はステープル10の端部側にガイドされてステープル10を屈曲させる。
図4に示した本発明の第1の実施の形態による腔内ステープラー100の他の構造は、本発明が属する技術分野における通常の知識を有する者が容易に理解できるので、その詳しい説明は省略する。以下、図4に示した腔内ステープラー100を使用して腸(1000、1100)を密着縫合する過程を、順次、詳細に説明する。
まず、過程(丸1)では、上下着縫合組織(1000、1100)に挿入棒(105、107)を挿入し、トリガー101を手で握って矢印方向へ押す。その結果、開いていた挿入棒(105、107)が互いに近づいて隣接する。図4の左側拡大円に示したように、トリガー101の作動部1011が弾性部材111に接する瞬間、弾性部材111の弾性が手に感じられ、この時、トリガー101の作動を中断させる。必要な場合、動かないようにトリガー101を固定することができる。
次の過程(丸2)では、本体103にガイド作動されるプッシュ部材ボタン1091をX軸方向に沿って押す。その結果、図4の中央拡大円に示したようにプッシュ部材ボタン1091と連結された連結部材1093がカッター117を矢印方向に移動させながらプッシュ部材109を押す。カッター117は複数のステープル10と平行に離隔されてプッシュ部材109が動作する時に互いに接する縫合組織(1000、1100)を切断する。プッシュ部材109は、トリガー101が弾性部材111に接する前までステープル10が縫合組織(1000、1100)を貫通するようにステープル10を押す。連結部材1093とプッシュ部材109はその隣接面が傾いているので、プッシュ部材109が上側へ移動しながら上部に固定されたステープル10を外部に押し出す。それによって図4の右側拡大円に示したように、ステープル10が縫合組織(1000、1100)を貫通し、その端部がハウジング115の内部空間にかかる。
過程(丸3)では、作動を中断したトリガー101を再び作動させて本体103に沿って伸びた弾性部材111を押す。その結果、図4の右側拡大円に示したように、その一端が傾いた弾性部材111が移動しながら、過程(丸4)で支持台113をステープル10側へ押す。それによってステープル10の端部を屈曲させて縫合組織(1000、1100)を密着縫合することができる。
このような構造の腔内ステープラー100を通じて、図1に示したような構造のステープル10で縫合組織(1000、1100)を密着縫合できるので、手術の時の安全性が優れているだけでなく、縫合部位の出血が少ない利点がある。
図5は、本発明の第2の実施の形態による腔内ステープラー200の概略的な斜視図で、円状ステープラー(EEA)を示す。図5に示した腔内ステープラー200は、図2のB部位を密着縫合するのに使用する。図5の左側拡大円にはアンビル221をEE線に沿って切断した断面を示し、図5の右側拡大円には本体203の内部構造を概略的に示す。図5に示した本発明の第2の実施の形態による腔内ステープラー200は、単に本発明を例示するためのものであり、本発明がこれに限定されるものではない。したがって、他の形態の腔内ステープラーを使用することもできる。
図5に示した腔内ステープラー200は大きくアンビル221と本体203を含むが、本体203の上端にはカッター(図示せず)とステープル(図示せず)が収納される。カッターとステープルはハンドル2091を回して上部に上昇させ、トリガー201を押して本体203から突出させてカッター(図示せず)とステープル(図示せず)で縫合組織を切断及び縫合する。
本発明の第2の実施の形態による腔内ステープラー200の他の構造は、本発明が属する技術分野における通常の知識を有する者が理解できるので、その詳しい説明は省略する。以下では図5に示した腔内ステープラー200を使用して図2に示した食道2000と腸2100を密着縫合する過程を、順次、詳細に説明する。
まず、過程(丸1)では、アンビル221を本体203と分離して図2に示した食道2000に入れ、その端部を糸で縛って固定しながら、その下部にシャフト223を取り出す。図2に示した腸2100のC部位に本体203を入れ、腸2100の側面を貫通させた後、本体203をシャフト223に結合させ、ハンドル2091を回して本体203をアンビル221の下部に隣接させる。その結果、図5の左側拡大円に示したハウジング215に本体203が隣接する。
次に、過程(丸2)では、図5の右側拡大円に示したように、トリガー201を押してトリガー作動部2011へプッシュ部材209を押す。プッシュ部材209は本体203内部を貫通して本体203の上端に位置したカッター及びステープルと連結されるので、これらを押して本体203外部へ突出させて縫合組織を切りながら、ハウジング215の内部空間に位置させる。引き続き、トリガー作動部2011が動いて弾性部材211に接する場合には、弾性部材211に含まれるスプリング2111によって手に弾性が感じられるが、この時、トリガー201の作動を中止する。
過程(丸3)では、このように中止したトリガー201を押し続けて弾性部材211を押す。図5の左側拡大円に示したように、弾性部材211はこれと連結されてアンビル221内に収納されたスライディング部材219を押す。スライディング部材219は密閉された空間内に位置するので、弾性部材211が押し付ける場合には、その反対方向へ滑りながら円滑に動く。
過程(丸4)では、支持台213の後面にスライディング部材219が位置するので、弾性部材211の作動によって支持台213を押し出すことができる。その結果、支持台213の下部に形成された溝2131にステープル10の端部を屈曲させることができる。
このような方法で食道と腸に開口部を形成しながら、両者を堅固に密着縫合して飲食物がよく流れるようにすることができる。
図6は、本発明の第3の実施の形態による腔内ステープラー300の概略的な斜視図で、縫合のみを行う線状ステープラー(TA)を示す。図6に示した腔内ステープラー300は、図2のC部位を密着縫合するのに使用する。図6の左側拡大円には本体303の内部構造を概略的に示し、図6の右側拡大円にはヘッド部305をFF線に沿って切断した断面を示す。図6に示した本発明の第3の実施の形態による腔内ステープラー300は、単に本発明を例示するためのものであり、本発明がこれに限定されるものではない。したがって、他の形態の腔内ステープラーを使用することもできる。
図6に示した本発明の第3の実施の形態による腔内ステープラー300は、大きく本体303とヘッド部305を含み、トリガー301を押して縫合組織をステープル10に密着縫合する。本発明の第3の実施の形態による腔内ステープラー300を構成する各部品は、本発明の第1の実施の形態及び第2の実施の形態による腔内ステープラーの各部品と機能が類似しているので、その詳しい説明は省略する。また、図6に示した本発明の第3の実施の形態による腔内ステープラー300の他の構造は、本発明が属する技術分野における通常の知識を有する者が容易に理解できるので、その詳しい説明は省略する。以下では図6に示した腔内ステープラー300を使用して縫合組織を密着縫合する過程を、順次、詳細に説明する。
過程(丸1)では、矢印方向のようにトリガー301を引いてトリガー作動部3011が作動してプッシュ部材309を押す。その結果、ヘッド部下部3051が上側へ移動してヘッド部上部3052に隣接し、その間に位置した縫合組織を堅固に固定する。トリガー作動部3011が継続して作動してスプリング3111を備えた弾性部材311に接して手に弾性が感じられる時にトリガー301作動を中止する。
次に、過程(丸2)では、図6の右側拡大円に示したように、プッシュ部材ボタン3091を押してこれと連結されたプッシュ部材309でステープル10をヘッド部下部3051から突出させる。この時、ステープル10は、縫合組織を貫通しながら、ハウジング315の内部空間に受納される。
過程(丸3)では、継続してトリガー301を引っ張って弾性部材311を押す。その結果、図6の右側拡大円に示したように、弾性部材311がスライディング部材319を押し、過程(丸4)では、溝3131が形成された支持台313が下部へ突出してステープル10の端部を屈曲させて縫合組織を密着縫合する。
図面上には示されていないが、腹腔鏡手術にも本発明による手術用ステープルを使用することができる。腹腔鏡手術ではGIA型の腔内ステープラーを使用することできるが、この腔内ステープラーは、縫合する装置部が腹腔鏡手術のために直径12mm以内に全て入らなければならない限界があるので、ステープルのレッグ部の長さを減らして一定の長さ内により多くのステープルが入るようにして本発明による手術用ステープルを使用することができる。
本発明を実施の形態と関連付けて説明したが、付属する特許請求の範囲の概念と範囲を逸脱しない限り、多様な修正及び変形が可能であるということを、本発明の属する技術分野における者には、簡単に理解できる。
Claims (11)
- 第1縫合組織とその第1縫合組織に接する第2縫合組織とを密着縫合する手術用ステープルであって、
上記第1縫合組織の一面に密着して伸びる中心部と、
その中心部の両端から曲げられ、上記第1縫合組織及び上記第2縫合組織を貫通する一対の貫通部と、
上記各貫通部から曲げられ、線状に伸びて、上記第1縫合組織と上記第2縫合組織を密着結合させる一対のレッグ部と、
を含むことを特徴とする手術用ステープル。 - 前記各貫通部に連結される各レッグ部は、前記各貫通部と鋭角をなしながら折曲されることを特徴とする、請求項1に記載の手術用ステープル。
- 前記一対のレッグ部は相互に対向するように折曲されることを特徴とする、請求項1に記載の手術用ステープル。
- 前記一対のレッグ部の両端が互いに接することを特徴とする、請求項3に記載の手術用ステープル。
- 前記手術用ステープルはチタニウム板材からなることを特徴とする、請求項1に記載の手術用ステープル。
- 前記手術用ステープルは、前記第1縫合組織及び前記第2縫合組織と平行に複数付着されて前記第1縫合組織及び前記第2縫合組織を密着縫合することを特徴とする、請求項1に記載の手術用ステープル。
- 前記手術用ステープルは、前記第1縫合組織及び前記第2縫合組織に実質的に円状で複数付着され、前記第1縫合組織及び前記第2縫合組織を密着縫合することを特徴とする、請求項1に記載の手術用ステープル。
- 手術用ステープルを備える手術用腔内ステープラーで、
その手術用腔内ステープラーの一側に装着されるトリガーと、
そのトリガーが作動する時、そのトリガーの作動部に接して腔内ステープラーの内部を貫通して伸びる弾性部材と、
上記弾性部材に連結され、上記弾性部材によって作動して上記ステープルの両端部を折曲させる溝が下部に形成される支持台と、
その支持台を収納し、縫合組織を貫通したステープルの端部が位置する内部空間が形成され、上記弾性部材の作動によって上記支持台を上記ステープルの端部側へガイドするハウジングと、
を含むことを特徴とする手術用腔内ステープラー。 - 前記トリガーの作動によって前記トリガーが前記弾性部材に接する前まで前記ステープルが前記縫合組織を貫通するように前記ステープルを押し付けるプッシュ部材を、さらに含むことを特徴とする、請求項8に記載の手術用腔内ステープラー。
- 複数の前記ステープルと平行に離されて、前記プッシュ部材が動作する時に前記縫合組織を切断するカッターを、さらに含むことを特徴とする、請求項9に記載の手術用腔内ステープラー。
- 前記支持台の後面に位置し、前記弾性部材の作動によって前記支持台を押し出すスライディング部材を、さらに含むことを特徴とする、請求項8に記載の手術用腔内ステープラー。
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PCT/KR2004/003051 WO2006028314A1 (en) | 2004-09-10 | 2004-11-24 | An operating staple and intraluminal stapler for operation having the operating staple |
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- 2004-09-10 KR KR1020040072540A patent/KR100646762B1/ko not_active IP Right Cessation
- 2004-11-24 WO PCT/KR2004/003051 patent/WO2006028314A1/en active Application Filing
- 2004-11-24 JP JP2007531062A patent/JP2008512173A/ja not_active Abandoned
- 2004-11-24 EP EP04808212A patent/EP1788953A1/en not_active Withdrawn
- 2004-11-24 US US11/574,304 patent/US7909039B2/en not_active Expired - Fee Related
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JP2013542005A (ja) * | 2010-09-30 | 2013-11-21 | エシコン・エンド−サージェリィ・インコーポレイテッド | 保持マトリックスを含む、締結具システムを展開するための、締結器具 |
US9750502B2 (en) | 2010-10-01 | 2017-09-05 | Covidien Lp | Surgical stapling device for performing circular anastomosis and surgical staples for use therewith |
US9987011B2 (en) | 2010-10-01 | 2018-06-05 | Covidien Lp | Surgical fastener applying apparatus |
US10537331B2 (en) | 2010-10-01 | 2020-01-21 | Covidien Lp | Surgical stapling device for performing circular anastomosis and surgical staples for use therewith |
US10639040B2 (en) | 2010-10-01 | 2020-05-05 | Covidien Lp | Surgical fastener applying apparatus |
US11357507B2 (en) | 2010-10-01 | 2022-06-14 | Covidien Lp | Surgical stapling device for performing circular anastomosis and surgical staples for use therewith |
US11696762B2 (en) | 2010-10-01 | 2023-07-11 | Covidien Lp | Surgical fastener applying apparatus |
JP2013215572A (ja) * | 2012-04-09 | 2013-10-24 | Covidien Lp | 外科手術用ファスナー取り付け装置 |
JP2019080948A (ja) * | 2012-04-09 | 2019-05-30 | コヴィディエン リミテッド パートナーシップ | 外科手術用ファスナー取り付け装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2006028314A1 (en) | 2006-03-16 |
US7909039B2 (en) | 2011-03-22 |
US20070233126A1 (en) | 2007-10-04 |
EP1788953A1 (en) | 2007-05-30 |
KR100646762B1 (ko) | 2006-11-23 |
KR20060023718A (ko) | 2006-03-15 |
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