JPH08507708A - Improved staple - Google Patents

Improved staple

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JPH08507708A
JPH08507708A JP52012094A JP52012094A JPH08507708A JP H08507708 A JPH08507708 A JP H08507708A JP 52012094 A JP52012094 A JP 52012094A JP 52012094 A JP52012094 A JP 52012094A JP H08507708 A JPH08507708 A JP H08507708A
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staple
legs
leg
tissue
deformation
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JP2672713B2 (en
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エス. クック,メルビン
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ホロビーム インコーポレイティド
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064Surgical staples, i.e. penetrating the tissue
    • A61B17/0644Surgical staples, i.e. penetrating the tissue penetrating the tissue, deformable to closed position

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Materials For Medical Uses (AREA)

Abstract

(57)【要約】 複数のステープルを組織へ挿入するところの外科ステープルリングの方法および装置を開示する。ステープルは、ステープルが所定領域で変形する変形域を含み、それによりステープル留めする組織を均一圧縮する。 (57) SUMMARY Disclosed are methods and devices for surgical staple rings for inserting multiple staples into tissue. The staple includes a deformation zone in which the staple deforms in a predetermined area, thereby uniformly compressing the stapled tissue.

Description

【発明の詳細な説明】 改良ステープル 技術分野 本発明はステープル、具体的には、外科およびその他の分野に使用される改良 ステープルに関する。 発明の背景 ステープルは多くの用途を持つ。例えば、外科医は中空器官または管状構造の 切断端部相互を結合し(吻合)かつ止血するために薄いワイヤステープルを使用 する。薄いワイヤステープルは均一断面および材料特性を有する所定長の薄いワ イヤをU形に変形することにより形成される。図1はクラウン101および2本の 脚部102を含む従来技術による薄いワイヤステープル100を示す。図1に示された ステープルは均一断面および材料特性を有するが、材料特性はワイヤのU形への 変形時にステープルの脚部とクラウンとの結合領域で変化する。外科ステープル はステンレス鋼等の人体流体によるアタックに不活性の材料により形成される。 ステープルを設置するときに、脚部を留める材料へ押しつける。設置時に、い くつかのステープルは変形、即ち、弾性限界を越えて屈曲して形状を永久的に変 化させる。 図2は、脚部が屈曲して変形するときに脚部を誘導する管状構造のアンビルへ 脚部を付勢することにより設置時にB形に変形した図1のステープルを示す。こ のアンビルはステープルを挿入する側と反対のステープル留めする物の側に位置 する。図1のステープルの変形は曲げ応力が最大になるところで生じる。 図2はクラウン101から異なる位置で脚部102が分離してB形ステープルを変化 させる状態を示す。このように、B形ステープルが外科に使用される場合、脚部 とクラウンとの間に位置する組織はその領域により程度の異なる圧縮を受ける。 ステープルを使用して止血するために、ステープルにより最小限に圧縮された 組織は、最大限に圧縮される組織が過剰圧縮または歪みにより欠損したり損傷す る可能性があるにもかかわらず、止血のために更に圧縮されることになる。傷痕 組織の長時間にわたる収縮は悪い結果に繋がるので、必要以上に傷痕組織を形成 しないことが重要である。 過度の傷痕組織の発生を阻止する必要があるにもかかわらず、外科医によって は、制御された少量の組織損傷は、組織損傷の結果として形成される傷痕組織量 が過剰でなければ、即ち、形成された傷痕組織が従来技術のB形ステープルの使 用により過剰の傷痕組織に繋がる問題を生じなければ時に有益であると主張する 。 本発明の課題はステープル留めした物を均一圧縮するステープルを提供するこ とにある。 更に、本発明の課題は傷痕組織形成を最小限にする外科ステープルを提供する ことにある。 更に、本発明の課題はステープル留めした物の歪みを最小限にするステープル を提供することにある。 更に、本発明の課題は癒着時間を最小限にする外科ステープルを提供すること にある。 更に、本発明の課題はステープル留めした物の損傷を最小限にするステープル を提供することにある。 更に、本発明の課題は傷痕組織の形成を少量に制御することのできる外科用ス テープルを提供することにある。 発明の概要 上記問題および他の問題は本発明により解消され、かつ本発明の課題は、設置 時に変形に対する抵抗が所定領域で選択的に生じ、かかる変形を小さくしない場 合には抵抗が所定領域で選択的に生じない改良されたステープルに関する本発明 により達成される。変形に対する抵抗が小さい所定領域は、本明細書において、 以下、『変形域』と称する。変形域は変形域のステープルの断面の最小限の慣性 モーメントIを小さくする、またはステープル材料の弾性率Eを小さくすること により形成できる。 本発明のステープルの好適態様において、ステープルは2本の脚部を有し、各 脚部は所定領域に変形域を有し、この変形域はステープルが設置時にアンビルに 当接するときに生じる応力下で、変形域の抵抗よりも大きい抵抗をもつ脚領域を 介して、ステープルのクラウンから分離しており、それによりステープルは変形 域で選択的に変形する。 設置時に、本発明のステープルは、丸い隅をもった矩形に変形するのが好まし い。これはステープル留めした物の均一圧縮を可能にしかつその変形を最小限に するのに役立つ。 図1は設置前の従来技術のステープルを示す。 図2はB形に変形した後の図1の従来技術のステープルを示す。 図3は本発明のステープルの例示態様を示す。 図4は矩形に変形した後の図3のステープルを示す。 図5は図3のステープルの可能変形域および隣接脚領域の例示断面図(ステー プル3の縮尺と異なる。)を示す。 図6は2重に交互に並設したステープルラインを示す。 図7は第1タイプの例示アンビルの正面部分の断面図である。 図8は第2タイプの例示アンビルの正面部分の断面図である。 図9は変化した厚みをもった物の上に使用するための本発明の他の態様である 。 図10は本発明に使用するステープルの装填ストリップ(カートリッジ)を示す 。 図11は本発明の他の態様を示し、ここでは変形域はステープルの設置と同時に 形成される。 図12は使用時の図11の態様を示す。 図13は完全に変形して組織へ設置された本発明のステープルの断面図を示す。 図14は変形および設置前の本発明のステープルの他の態様を示す。 図15は完全にB形へ変形して組織へ設置された従来技術のステープルの断面図 を示す。 図16は変形域を形成する方法を示す。 図17はステープルの脚部の外側上に形成された切欠きの図を示す。 好適態様の詳細な説明 変形域は、変形がステープル設置時に所定領域で優先的に発生するように、そ の領域においてステープルを弱めることにより形成される。当分野で周知のごと く、応力下のステープルの1領域の変形に対する抵抗はその領域の弾性率Eおよ びその領域の慣性モーメントIの程度に依存する。1領域の上記両方または一方 の性質を小さくすることにより、その領域におけるステープルの変形に必要な応 力を小さくする。通常、EよりもIを小さくするのが簡単である。 ステープル変形時にステープルの失敗、即ち、破損になるような方法により所 定領域でステープルを弱めることより変形領域を形成 すべきでない。 本発明のステープルの脚部はステープル留めされた物の要件に適合するもので なければならない。即ち、変形域の位置はステープル留めする物の厚みに適合し 、かつ所望の圧縮に適合するものでなければならず、かつステープルの脚部の長 さはステープル留めする物を均一に圧縮するためにその両脚部を接近でき、かつ 脚部の先端間からの物の突出を阻止できる寸法でなければならない。かかる適合 は複数のステープルの利用を必要としてよいが、圧縮が行われ、その均一性が重 要である場合に正当化されるものである。 図3は本発明による例示ステープル300を示す。ステープル300はクラウン301 および2本の脚部302を有する。各脚部302は脚領域306および307の抵抗と比較し て304の方向への曲げに対する抵抗が小さい変形域305を有する。脚領域306およ び307は変形域305の外側にある。ステープル300が304の方向へ働く力による応力 を受けると、上記脚部はその方向へ屈曲して、曲げおよび変形が変形域305で優 先的に生じる。 図4において、図3のステープルは矩形に変形した状態で示されている。図3 のステープルにより留めた物は図2のB形ステープルの場合よりも均一圧縮下に おかれる。図4は、変形域305の位置および長手、ならびにステープルの脚部302 の長手が特定厚みを有するステープル留めされる物に望ましい圧縮を得る上で、 またステープルの両脚部の端部を接近させる上で脚部の重要なパラメタであるこ とを示す。理想的には、ステープルの脚部の先端部は相互に接触する程度である 。クラウン301と変形域305との間の脚領域306の長さはステープル留めする物の 厚みとその物質に所望される圧縮力とに応じて設定される要件に適したものであ る。変形域305と脚端部308との間の脚領域307の長さは、変形したステープルの 両脚端 部308の分離がステープル設置時の変形により両脚端部308間で干渉することなく 、最小限になるように選択されるべきである。 図2と図4を比較すると、図3のステープル300により留めた物がB形ステー プルによるよりも歪みが少なく圧縮が均一であることを示す。 図5において、図3の脚部302の例示断面(図3の縮尺で表されていない)が 示されている。図5(a)において、ステープルの脚部302の変形域305の外側の 領域の断面図が示されている。図5(b)および(c)には、ステープルの脚部 の変形域305の断面として2つの異なる可能な断面が示されている。304の方向へ 屈曲する図5(b)または(c)に示された断面を有するステープルの脚部の変 形域のIの値は図(a)の断面を有する場合よりも小さい。 図6において、図4の本発明のステープルから形成された2重に交互に並設さ れたステープルライン600が示されており、各列は他の列に対してオフセットし ている。外科医は2重交互ステープルラインを使用して、例えば、器官の切断端 部で止血のために組織を圧縮または吻合する。本発明のステープルは、このよう に、例えば、止血および吻合の用途を有する。 図7において、図4の変形ステープルを形成するために図3のステープルに使 用するアンビル700の断面が示されている。アンビル700に形成されたチャンネル 701は、ステープル300がアンビル700を付勢して脚部302がアンビル700に当接す るときにステープル脚部302の屈曲と変形を可能する。アンビル700はステープル 300を付勢するときに固定される。 図8において、図3のステープル300に使用する図7と異なる態様のアンビル8 00が示されている。ステープル300の脚部302はステープル留めする物(図8に示 されていない)へ侵入した後にアン ビル800のチャンネル801へ当接する。アンビル800は、ステープル300がアンビル 800へ付勢されるときに、ステープル300の方向へ移動する。該アンビルの運動は 当分野に周知の手段を用いて行なわせることができる。アンビルの運動は、ステ ープル脚部302が屈曲および変形するきに該脚部により留められる物の歪みを最 小限にする。 図4に示されたように、ステープル300が変形した後の脚部302はチャンネル70 1の形状に追従しない。寧ろ、脚部302の端部308がチャンネル701の形状に追従し て脚領域306および307が相互に対して角度をもって屈曲する(好ましくは直角) 。ステプラーは所望値以上にステープルが屈曲するのを阻止するためにストッパ (702,802)を有するが、かかるストッパはステープルの設置には必要ない。例 示ストッパ(702,802)が図示されているが当分野に周知の手段を用いた他の方 法を使用してステープルを所望点以上に変形させる程にステプラーの顎部が接近 するのを防止することができる。 ステプラーの顎部はステープル留めする物の厚みが均一の場合には相互に対し て、通常、平行であるが、物の厚みは挿入すべきステプラーラインの長さにわっ て変化していることがある。図9において、他のステープルの顎装置900が示さ れており、これは2つのステプラー顎部901および902(顎部902はアンビルとし て機能する)を含む。この態様はステープル留めする物の厚みが外科医が挿入を 望むステープルラインの長さにわたって変化する場合に使用できる。 本発明の利点を最大にしかつ良好な結果を得るために、図示されたように上顎 部901は下顎部902に対して傾斜している。結果として、ステプラー顎部901と902 の分離はステープル留めする物(図 9に図示されていない)の厚みの変化に対応して変化する。 図9の装置に使用する個別ステープルは、ステープル留めする物の厚みの変化 に対応するために相互に対して異なる位置に脚部変形域を有する。特に、図9か ら理解されるように、チャンネル903と接触するステープルはその脚部変形域と ステープルクラウンとの間にチャンネル904と接触するステープルよりも長さの 短い脚部を有する。更に、チャンネル903に使用されるステープルの脚部の長さ はチャンネル904で使用されるステープルの脚部長よりも短くてよい。 本発明のステープルは均一断面および材料特性をもって製造され、かつ使用直 前に外科医がステープルを変形させることにより変形域を形成できるので、本発 明のステープルはステープル留めする物の条件に対応する。例えば、外科医は変 形域を形成するためにステープルの脚部を切欠くまたは綴じ、そして/またはス テープルの脚部を所望長にカットすることができる。かかる目的に使用できる装 置として当分野に周知の手段を使用できる。かかる試みはステープルの在庫要件 としての寸法を縮小させる。 図10は従来技術ステープル100を担持した装填ストリップ1001を示す。この装 填ストリップ1001は所望される変形域を形成し、かつステープルの脚部102を所 望長にカットする装置(図10に図示されていない)へ設置できる。かかる目的に 使用できる装置として当分野に周知の手段を利用できる。装填ストリップ1001は ステープル100を挿入する前に適宜ステプラー(図10に示されていない)へ挿入 される。 図11は本発明の他の態様を示す。この態様において、変形域はステープルの使 用前でなくステープルを挿入するときに形成される。図11の装置はステープル11 10をその間に有するステプラー顎部1102 ,1103を示す。(ステプラー顎部1103はアンビルとして機能する。 ) 2つのバー1101は変形域を形成するために使用される。このバーは下顎部1103 または上顎部1102へ取付けられてよい。該バーを取付ける特定方法は説明の便宜 から図1に示されておらず、本発明の作用に重要でないが、当分野に周知の手段 がかかる目的のために使用できる。 顎部1102および1103が相互の方向へ向かうときに、ステープル1100は各バー11 01と当接してそのまわりで屈曲かつ変形する。図12から理解されるように、ステ ープルの脚部1111は脚部分1106および1107が屈曲(好ましくは直角に)するよう に相互に対して、変形域がステープル挿入前に形成される態様の場合と同様に、 変形する。 上記アンビルはステープルの脚部が部分的または完全にステープル留めする物 を通過した後に移動させるのが好ましい。上記ステープルが変形した後に上記バ ーはステプラーを簡単に除去できるようにその側を移動し、またはステプラーは 図12の平面から1方向へ摺動してステープルから離脱するように設置されてよい 。かかる離脱を可能にするための手段は図示されていないが、かかる目的のため に当分野に周知の手段を使用できる。 図13は組織12へ設置できるステープル10を含む他の態様の側断面図を示す。ス テープル10の脚部26は各々第1セクション16および第2セクション20に囲繞され た上変形域18、ならびに第3セクション22および第2セクション20に囲繞された 下変形域24を含む。ステープル10はクラウン14を含む。 ステプラー(図示せず)によるステープル10の挿入時に、脚部26の先端部23は ステープル留めする組織12へ貫通してステプラーアンビル(図示せず)に当接し 、脚部26が下変形域24で屈曲かつ変形す るときに第3セクション22を上方へ回転させる。これにより第2セクション20お よび第3セクション22は相互に対して角度を形成し、例えば、相互に対して実質 的垂直になる。ステプラーが連続的にステープル10をアンビルに対して押圧する と、脚部26は内側へ屈曲して上変形域18で変形し、それにより第2セクション20 は第1セクションに対して回転しかつ第1セクションに対して角度を形成する。 例えば、実質的直角になる。脚部26は、先ず、下変形域24で屈曲し、かつ該下変 形域が上変形域よりも更に屈曲する傾向が強いものであるのが好ましい。 ステープル設置工程が終了して脚部26が変形したときに、第3セクション22を 図13に示されたように組織12へ侵入させる。当然ながら、組織12への侵入量は脚 部26の先端部23に対する下変形域24の位置に依存する。理想的には、上記上変形 域は、下変形域24が完全に変形した後に殆ど接触するように、位置決めする。こ れはステープルの脚部26間から組織が突出するのを防止する。 各ステープルにより占領された領域は均一に圧縮されることに注意されたい。 このようにして、全ステープル留め領域の各々が均一に圧縮されて複数の領域へ 分割されていることを観察できる。 図14は組織12へ設置する前の本発明のステープル10を示す。ステープル10は変 形前はU形であり、かつ上変形域18および下変形域24を各脚部26上に有する。変 形域18および24はステープル10の脚部26の上述セクションを減少させることによ り、またはここに記載の他の方法により形成できる。 3つの異なるセクション16,20および22を各脚部26に形成することにより、第 3セクション22は組織12への僅かな侵入を可能にする、即ち、組織の損傷量を制 御して最小限にし、それにより傷痕組織の形成量を少なくし、かつ第2セクショ ン20および第1セクション 16は組織12を均一に圧縮するために使用できる。 図15は組織38へ設置した従来技術のB形ステープル28を示す。脚部32の端部34 の下には組織の空所領域36があり、そして傷痕組織が充填されるべきこの空所領 域内に形成される。ステープル28のクラウン30からの脚部32の分離は脚部の長手 にわたって均一ではないので、脚部による組織38の圧縮は均一でない。かかる理 由から、止血を行うのがしばしば困難であり、B形ステープルを使用する場合に はステープル留めした組織の適性栄養補給が必要である。B形ステープルの欠点 として、脚部32の端部34はステープル留めした組織へ深く侵入して脚部が変形す るときに捩れ、そのためにステープル設置時に実質的損傷が発生して、結果的に 狭窄に発展する可能性のある傷痕組織が過剰に形成され、また穴の空いた血管か ら出血することになる。更に、治癒期間が長引くことになる。 説明の目的から、図16に示されたように、ステープル脚部26の『内側』401と ステープル脚部26の『外側』402との間は区別する必要がある。ステープルの脚 部の外側上の切欠きに関し、図16は2つのかかる切欠きを示し、各脚部26上の1 つの切欠きは上変形域18を形成するために使用される。下変形域は使用されても 使用されなくてもよく、使用される場合には、説明の目的から図示されていない が、上述の上変形域に関する説明が下変形域に適用できる。切欠きは過度に『シ ャープ』でないこと、さもなければ脚部のセクション16および20が相互に対して または連続的に回転するときに、ステープルは失敗、即ち、破損または破壊する 。 脚部の外側上に許容できる切欠きを形成するために、切欠きの両側がぶつかる 連接点の半径は、ステープルを形成する材料、例えば、ステンレス鋼またはチタ ン等の金属が問題の変形域で脚部の変形時に破壊、亀裂、破砕する程に小さなも のであってはならない。切 欠きは所謂応力集中に繋がる。即ち、そのセクションにおける平均的応力よりも 相当に大きい局所応力を生じる。延性ステープル材の局所的屈伸性は応力集中作 用を最小限にするが、他方、外科処置に使用するステープルは患者の健康と幸福 に危険であるためにステープルの失敗が許容されない臨界的使用を必要とする。 屈曲するときに脚部の外側上に形成されるシャープな切欠きの連接点で発生する 応力集中によるステープルの失敗は許容できないので、最小半径は切欠きの連接 点に存在しなければならない。最小半径(隅肉)は少なくとも2/1000インチ( 約5/1000cm)でなければならない。シャープな切欠きではなく、脚部の内側上 に少なくとも3/1000インチ(約8/1000cm)の隅肉を有する切欠きをもったス テープルを製造することが好ましい。 図17は切欠きの両側42の連接点に隅肉40を有する切欠きの形態の脚部26内の上 変形域18の拡大図を示す。Rは隅肉の半径であり、かつステープル設置時に屈曲 によりステープル脚部の破壊または破砕の可能性を最小限にして許容できる信頼 性、即ち、設置後の脚部の続く破壊を解消するために3/1000インチ(約8/10 00cm)以上である。 上述の説明は本発明の好適態様に関するものであるが、種々の改良または変更 が当分野の通常の熟練者に明らかであろう。例えば、ステープルは外科用以外の 他の用途に使用できる。2本以上の脚部を有するステープル、例えば、2本の外 脚部間にもう1本の脚部を有するステープルを使用でき、この付加的脚部はいず れの変形域をも必要としない。 上述の開示は外科用ステープルの使用に関して説明するが、かかるステープル は他の用途、例えば、ステープルの下に位置する物の均一圧縮が有益であり、ま たその物の穿孔は有害であるような用途 に使用できる。 本開示において特定アンビルを図示したが、本発明のステープルに使用される アンビルは図示されたアンビルのいずれかを必ずしも必要とせず、所望の変形形 状を形成するために相互に対して脚部を変形させるいずれの手段であってよく、 かつ所望量の変形が生じた後にステープルの変形を停止させる手段を含んでよい 。更に、2本の脚部を有するステープルについて説明したが、本発明の原理が2 本以上の脚部を有するステープルに適用できる、例えば、更に大きい領域を各ス テープルにより圧縮することを意図するような用途に使用できることは自明であ る。本発明の範囲および主旨に属するかかる改変および/または追加は次の請求 の範囲により保護されるべきである。Detailed Description of the Invention Improved staple Technical field   The present invention is an improvement for use in staples, specifically surgery and other fields. Regarding staples. BACKGROUND OF THE INVENTION   Staples have many uses. For example, a surgeon may use hollow organs or tubular structures Use thin wire staples to join (anastomosis) the cut ends together and to stop bleeding To do. Thin wire staples are thin length staples with uniform cross section and material properties. It is formed by transforming the ear into a U shape. FIG. 1 shows a crown 101 and two 1 illustrates a prior art thin wire staple 100 including legs 102. Shown in Figure 1 The staples have a uniform cross section and material properties, but the material properties are It changes in the joint area between the leg portion and the crown of the staple during the deformation. Surgical staples Is formed of a material such as stainless steel, which is inert to an attack by a human body fluid.   When installing the staples, press the legs against the material to be fastened. When installing Some staples are deformed, that is, bent beyond their elastic limit to permanently change their shape. Turn into   Figure 2 shows a tubular anvil that guides the legs as they bend and deform. Figure 2 shows the staple of Figure 1 deformed into a B shape during installation by biasing the legs. This The anvil is located on the side of the staple that is opposite the side on which the staple is inserted. To do. Deformation of the staple of FIG. 1 occurs where bending stress is maximized.   FIG. 2 shows that the leg 102 is separated from the crown 101 at a different position to change the B-shaped staple. The following shows the state of making it. Thus, when B-shaped staples are used in surgery, the legs are The tissue located between the and crown undergoes different degrees of compression depending on the area.   Minimal compression with staples for hemostasis using staples Tissues that are maximally compressed may be damaged or damaged due to overcompression or strain. However, it will be further compressed for hemostasis. scar Long-term contraction of tissue can lead to poor results, creating more scar tissue than necessary It's important not to.   Despite the need to prevent the development of excessive scar tissue, A controlled small amount of tissue damage is the amount of scar tissue formed as a result of tissue damage. Is not excessive, that is, the scar tissue formed is less than the use of prior art B-staples. Argue that it is sometimes beneficial if the use does not cause problems leading to excess scar tissue .   An object of the present invention is to provide a staple that uniformly compresses a stapled object. And there.   Furthermore, an object of the present invention is to provide a surgical staple that minimizes scar tissue formation. It is in.   A further object of the present invention is to provide staples that minimize distortion of stapled items. To provide.   Further, it is an object of the present invention to provide a surgical staple that minimizes adhesion time. It is in.   A further object of the present invention is to provide staples that minimize damage to stapled items. To provide.   Further, the object of the present invention is to provide a surgical surgical tool capable of controlling the formation of scar tissue in a small amount. To provide a table. Summary of the invention   The above problems and other problems are solved by the present invention, and an object of the present invention is to install Sometimes resistance to deformation occurs selectively in a certain area, and if such deformation is not diminished. The present invention relates to an improved staple in which resistance does not selectively occur in a predetermined area. Achieved by In the present specification, the predetermined region having a small resistance to deformation is Hereinafter, it will be referred to as a "transformation zone". The deformation zone is the minimum inertia of the cross section of the staple in the deformation zone. To reduce the moment I or the elastic modulus E of the staple material Can be formed by.   In a preferred embodiment of the staple of the invention, the staple has two legs, each The leg has a deformation area in a predetermined area, and this deformation area is attached to the anvil when the staple is installed. Under the stress generated when abutting, a leg region with a resistance greater than that of the deformation region Through the crown of the staple, which causes the staple to deform It transforms selectively in the area.   Upon installation, the staples of the present invention are preferably transformed into a rectangle with rounded corners. Yes. This allows uniform compression of the stapled material and minimizes its deformation. To help.   FIG. 1 shows a prior art staple prior to installation.   FIG. 2 shows the prior art staple of FIG. 1 after being deformed into a B shape.   FIG. 3 illustrates an exemplary embodiment of the staple of the present invention.   FIG. 4 shows the staple of FIG. 3 after being transformed into a rectangle.   FIG. 5 is an exemplary cross-sectional view of the possible deformation area and the adjacent leg area of the staple of FIG. Different from the pull 3 scale. ).   FIG. 6 shows a doubled staple line which is alternately arranged.   FIG. 7 is a sectional view of a front portion of the first type exemplary anvil.   FIG. 8 is a sectional view of a front portion of a second type exemplary anvil.   Figure 9 is another embodiment of the invention for use on objects of varying thickness. .   FIG. 10 shows a staple loading strip (cartridge) for use in the present invention. .   FIG. 11 shows another embodiment of the present invention in which the deformation zone is at the same time as the placement of staples. It is formed.   FIG. 12 shows the embodiment of FIG. 11 in use.   FIG. 13 shows a cross-sectional view of a staple of the present invention fully deformed and placed in tissue.   FIG. 14 shows another embodiment of the staple of the present invention before deformation and installation.   FIG. 15 is a cross-sectional view of a prior art staple that has been completely transformed into a B shape and placed on tissue. Is shown.   FIG. 16 shows a method of forming a deformation zone.   FIG. 17 shows a view of the notch formed on the outside of the leg of the staple. Detailed Description of the Preferred Embodiment   The deformation area is set so that deformation occurs preferentially in a predetermined area when staples are installed. Formed by weakening the staples in the region of. As is well known in the art The resistance to deformation of one area of the staple under stress depends on the elastic modulus E and the area. And the moment of inertia I of the region. One or both of the above in one area By reducing the nature of the Reduce the power. It is usually easier to make I smaller than E.   When the staple is deformed, the staple may fail or be damaged. Deformation area is formed by weakening staples in a fixed area Should not   The staple legs of the present invention meet the requirements of stapled items. There must be. That is, the position of the deformation area matches the thickness of the stapled object. , And must be compatible with the desired compression, and the staple leg length The legs can be approached to evenly compress the staples, and It must be dimensioned to prevent the protrusion of objects from between the tips of the legs. Such adaptation May require the use of multiple staples, but the compression takes place and its uniformity is significant. It is justified when it is necessary.   FIG. 3 illustrates an exemplary stapler 300 according to the present invention. Staple 300 is crown 301 And has two legs 302. Each leg 302 compares with the resistance of the leg regions 306 and 307 And a deformation region 305 having a small resistance to bending in the direction of 304. Leg area 306 and And 307 are outside the deformation area 305. Stress due to force acting on the staple 300 in the direction of 304 Upon receiving, the leg is bent in that direction, and bending and deformation are excellent in the deformation region 305. It happens first.   In FIG. 4, the staple of FIG. 3 is shown in a deformed rectangular shape. Figure 3 The items fastened by the staples under the uniform compression are more compressed than those of the B-shaped staples in FIG. To be placed. FIG. 4 shows the position and length of the deformation zone 305 and the legs 302 of the staple. In order to obtain the desired compression for the stapled object whose longitudinal length has a specific thickness, It is also an important parameter for the legs to bring the ends of both legs of the staple closer together. And indicates. Ideally, the tips of the staple legs should only touch each other. . The length of the leg area 306 between the crown 301 and the deformation area 305 is such that the staples are Suitable for requirements set according to thickness and desired compressive force for the material It The length of the leg region 307 between the deformed region 305 and the leg end 308 depends on the deformed staple. Both legs ends Separation of part 308 does not interfere between both leg end parts 308 due to deformation at the time of staple installation Should be selected to be minimal.   Comparing FIG. 2 and FIG. 4, it can be seen that the object fastened by the staple 300 of FIG. It shows less distortion than pull and more uniform compression.   5, an exemplary cross-section (not shown to scale of FIG. 3) of leg 302 of FIG. It is shown. In FIG. 5A, the outside of the deformation area 305 of the leg portion 302 of the staple is A cross-sectional view of the area is shown. 5 (b) and 5 (c), staple legs are shown. Two different possible cross-sections are shown as cross-sections of the deformation zone 305. In the direction of 304 Variation of staple leg having a cross section shown in FIG. 5 (b) or (c) that bends The value of I in the area is smaller than that in the case of the cross section of FIG.   In FIG. 6, the double staggered sheets formed from the staples of the present invention of FIG. Staple lines 600 are shown with each row offset from the other rows. ing. Surgeons use double alternating staple lines to, for example, cut ends of organs. The tissue is compressed or anastomosed at the site for hemostasis. The staple of the present invention is For example, it has applications in hemostasis and anastomosis.   7 is used in the staple of FIG. 3 to form the modified staple of FIG. A cross section of an anvil 700 for use is shown. Channel formed on anvil 700 In 701, the staple 300 urges the anvil 700 and the leg 302 abuts on the anvil 700. The staple leg portion 302 can be bent and deformed when the staple leg portion 302 is bent. Anvil 700 staples Fixed when energizing 300.   In FIG. 8, an anvil 8 of a mode different from that of FIG. 7 used for the staple 300 of FIG. 00 is shown. The legs 302 of the staple 300 are to be stapled (shown in FIG. 8). After being invaded) Contact channel 801 of building 800. Anvil 800, staple 300 anvil When biased to 800, it moves towards staple 300. The movement of the anvil This can be done using means well known in the art. The movement of the anvil is When the pull leg 302 bends and deforms, the distortion of the object fastened by the leg is minimized. Keep it to a minimum.   As shown in FIG. 4, the leg 302 is deformed into the channel 70 after the staple 300 is deformed. Does not follow the shape of 1. Rather, the end 308 of the leg 302 follows the shape of the channel 701. The leg regions 306 and 307 bend at an angle to each other (preferably right angles) . The stepper has a stopper to prevent the staples from bending more than desired. Although it has (702, 802), such a stopper is not necessary for installing the staples. An example Shown stoppers (702, 802) are shown but others using means well known in the art The jaws of the stepper so close that the staples are deformed more than desired using the method Can be prevented.   If the thickness of the stapled jaws is uniform, They are usually parallel, but the thickness of the object spans the length of the stepper line to be inserted. May have changed. In FIG. 9, another staple jaw device 900 is shown. It has two stepper jaws 901 and 902 (the jaw 902 is an anvil). Functioning). In this mode, the thickness of the stapled material is It can be used when it varies over the desired staple line length.   In order to maximize the advantages of the present invention and obtain good results, the upper jaw as shown The part 901 is inclined with respect to the lower jaw 902. As a result, stepper jaws 901 and 902 Is separated by stapling (Fig. (Not shown in FIG. 9).   The individual staple used in the apparatus of FIG. 9 has a change in the thickness of the stapled object. In order to correspond to, the leg deformation areas are provided at different positions with respect to each other. In particular, Figure 9 As will be understood from the above, the staple contacting the channel 903 is The length of the staple that is in contact with the channel 904 between the staple crown and the staple Has short legs. In addition, the length of the leg of the staple used for channel 903 May be shorter than the leg length of the staple used in channel 904.   The staple of the present invention is manufactured with uniform cross-section and material properties and is ready for use. Since the surgeon can form the deformation area by deforming the staples before Light staples correspond to the conditions for stapling. For example, the surgeon Staples are notched or bound and / or stapled to form features. The legs of the table can be cut to the desired length. Equipment that can be used for such purposes Any means known in the art can be used as the device. Such an attempt is a staple inventory requirement To reduce the dimensions.   FIG. 10 shows a loading strip 1001 carrying prior art staples 100. This equipment Filling strip 1001 forms the desired deformation zone and locates the staple legs 102. It can be installed on a device for cutting to the desired length (not shown in Fig. 10). For such purpose Means well known in the art can be used as a usable device. The loading strip 1001 Insert appropriately into stepper (not shown in Figure 10) before inserting staple 100 To be done.   FIG. 11 shows another embodiment of the present invention. In this embodiment, the deformation area is the use of staples. It is formed when the staples are inserted rather than before use. The device of FIG. 11 has staple 11 Stepler jaw 1102 with 10 in between , 1103 are shown. (Stepler jaw 1103 functions as an anvil. )   Two bars 1101 are used to form the deformation zone. This bar is lower jaw 1103 Or it may be attached to the upper jaw 1102. The specific method of mounting the bar is for convenience of explanation. 1 is not shown in FIG. 1 and is not critical to the operation of the invention, but is well known in the art. Can be used for such purposes.   When the jaws 1102 and 1103 are oriented toward each other, the staples 1100 will move to each bar 11 It contacts 01 and bends and deforms around it. As can be seen in Figure 12, The leg portion 1111 so that the leg portions 1106 and 1107 bend (preferably at right angles) With respect to each other, as in the case of the mode in which the deformation area is formed before inserting the staples, Deform.   The anvil is one in which the staple legs are partially or completely stapled. It is preferable to move after passing through. After the staples are deformed, the Move it to the side for easy removal, or the stepper It may be installed so that it slides in one direction from the plane of FIG. 12 and separates from the staple. . Means for enabling such disengagement are not shown, but for such purposes Any means well known in the art can be used.   FIG. 13 shows a side cross-sectional view of another embodiment including staple 10 that can be placed on tissue 12. Su The legs 26 of the table 10 are each surrounded by a first section 16 and a second section 20. Surrounded by the upper deformation zone 18, and the third section 22 and the second section 20 Including the lower deformation area 24. The staple 10 includes a crown 14.   When inserting the staple 10 with a stepper (not shown), the tip end portion 23 of the leg portion 26 is It penetrates through the tissue 12 to be stapled and abuts a stepper anvil (not shown). , The legs 26 bend and deform in the lower deformation area 24 When rotating, the third section 22 is rotated upward. This allows the second section 20 And the third section 22 form an angle with respect to each other, for example substantially with respect to each other. Become vertical. Stepper continuously presses staple 10 against anvil And the leg 26 bends inward and deforms in the upper deformation area 18, which causes the second section 20 to Rotate with respect to the first section and form an angle with respect to the first section. For example, it becomes a substantially right angle. The legs 26 first bend in the lower deformation area 24 and It is preferable that the shape region has a stronger tendency to bend than the upper deformation region.   When the stapling process is completed and the legs 26 are deformed, the third section 22 is removed. The tissue 12 is penetrated as shown in FIG. Naturally, the amount of invasion into the tissue 12 is It depends on the position of the lower deformation zone 24 with respect to the tip 23 of the part 26. Ideally, the above deformation The zones are positioned so that the lower deformation zone 24 is almost in contact after complete deformation. This This prevents tissue from protruding between the staple legs 26.   Note that the area occupied by each staple is uniformly compressed. In this way, each of the entire stapling areas is uniformly compressed into multiple areas. You can observe that it is divided.   FIG. 14 shows the staple 10 of the present invention prior to placement on the tissue 12. Staple 10 is strange The shape is U-shaped and has an upper deformation area 18 and a lower deformation area 24 on each leg 26. Strange The features 18 and 24 are provided by reducing the above-mentioned sections of the legs 26 of the staple 10. Or other methods described herein.   By forming three different sections 16, 20 and 22 on each leg 26, 3 Section 22 allows for a slight penetration of tissue 12, ie, controlling the amount of tissue damage. To minimize the amount of scar tissue formation and to increase the second section. 20 and the first section 16 can be used to compress tissue 12 uniformly.   FIG. 15 shows a prior art B-shaped staple 28 installed in tissue 38. The end 34 of the leg 32 Below there is a void region 36 of tissue, and this void to be filled with scar tissue. It is formed in the area. The separation of the leg 32 from the crown 30 of the staple 28 is the length of the leg. The compression of the tissue 38 by the legs is not uniform because it is not uniform across. This reason For this reason, hemostasis is often difficult, and when using B-shaped staples. Requires proper nutrition of stapled tissue. Disadvantages of B-shaped staples As a result, the ends 34 of the legs 32 penetrate deeply into the stapled tissue and the legs are deformed. Twisting when installed, which causes substantial damage during staple placement, resulting in Excessive scar tissue that may develop into a stenosis, and whether it is a perforated vessel Will bleed. Furthermore, the healing period will be prolonged.   For purposes of explanation, as shown in FIG. 16, the “inside” 401 of the staple leg 26 A distinction must be made between the "outer" 402 of the staple leg 26. Staple legs With respect to the notch on the outside of the part, FIG. 16 shows two such notches, one on each leg 26. The two notches are used to form the upper deformation zone 18. Even if the lower deformation area is used May not be used, and if used, is not shown for purposes of illustration However, the above description regarding the upper deformation region can be applied to the lower deformation region. Excessive notch Not'charp ', otherwise sections 16 and 20 of the legs are against each other Or staples fail, i.e. break or break, when rotated continuously .   Both sides of the notch hit to form an acceptable notch on the outside of the leg The radius of the articulation depends on the material forming the staple, for example stainless steel or titanium. Even if the metal such as iron is small enough to be broken, cracked or crushed when the leg is deformed in the deformation area of interest. Must not be. Off The lack leads to so-called stress concentration. That is, rather than the average stress in that section It produces a fairly large local stress. The local bending and elongation of ductile staple material is due to stress concentration. Minimal use, while staples used in surgery are patient's health and well-being Staple failure requires critical use that is unacceptable because it is dangerous. Occurs at the contiguous contact with a sharp notch formed on the outside of the leg when flexing Since the failure of stapling due to stress concentration is unacceptable, the minimum radius is the notch concatenation. Must exist at a point. Minimum radius (fillet) is at least 2/1000 inch ( It should be about 5/1000 cm). Above the inside of the leg, not a sharp cutout With a notch that has a fillet of at least 3/1000 inches It is preferred to make the table.   FIG. 17 shows the top of the leg 26 in the form of a notch with fillets 40 at the contact points on both sides 42 of the notch. An enlarged view of the deformation area 18 is shown. R is the radius of the fillet and bends when the staple is installed Allows for acceptable confidence with minimal chance of breaking or crushing staple legs Property, that is, 3/1000 inch (about 8/10) to eliminate the subsequent destruction of the legs after installation. 00 cm) or more.   While the above description relates to the preferred embodiment of the invention, various improvements or modifications Will be apparent to one of ordinary skill in the art. For example, staples are non-surgical Can be used for other purposes. Staples with two or more legs, eg two outer Staples with one additional leg between the legs can be used without this additional leg It does not require any deformation area.   Although the above disclosure describes the use of surgical staples, such staples Is useful for other applications, such as uniform compression of the underlying objects. Applications where perforation of the sword is harmful Can be used for   Although a particular anvil is illustrated in this disclosure, it may be used in the staple of the present invention. The anvil does not necessarily require any of the anvils shown and the desired variant Any means for deforming the legs relative to each other to form the shape, And may include means for stopping the deformation of the staples after the desired amount of deformation has occurred. . Furthermore, although the staple having two legs has been described, the principle of the present invention is Applicable to staples with more than one leg, for example, a larger area for each staple. Obviously it can be used in applications where it is intended to be compressed by a table. It Such modifications and / or additions that fall within the scope and spirit of the invention are subject to the following claims. Should be protected by the scope of.

【手続補正書】特許法第184条の7第1項 【提出日】1994年7月4日 【補正内容】 請求の範囲 25.クラウン、および少なくとも2本の脚部から成り、 前記脚部の少なくとも1本は変形域を含み、前記変形域は細長いことを特徴と するステープル。 26.前記変形域の少なくとも1つを形成するステープル材は少なくとも2つの 実質的平行の側部を含む、請求項1のステープル。 27.前記実質的平行の側部は第3側部に対して実質的垂直である、請求項2の ステープル。 28.前記2つの実質的平行の側部は前記変形域が直角に変形するときに相互に 対して接触しない、請求項3のステープル。 29.クラウン、および少なくとも2本の脚部から成り、 前記脚部の各々は変形域を有し、前記変形域を形成するステープル材は単一点 で当接しない2つの側部を形成し、かつ第3側部を介して連結されていることを 特徴とするステープル。 30.クラウン、および少なくとも2本の脚部から成り、 前記脚部の少なくとも1本は変形域を含み、前記変形域は実質的に定常断面の 細長い領域を有することを特徴とするステープル。 31.クラウン、および少なくとも2本の脚部から成り、 前記脚部の少なくとも1本は変形域を含み、前記変形域は実質的平行の側部を 有する細長い領域を含むことを特徴とするステープル。 【手続補正書】特許法第184条の8 【提出日】1994年12月15日 【補正内容】 請求の範囲 17.クラウン、および 少なくとも2本の脚部から成り、 少なくとも2本の前記脚部の少なくとも1本は内側および外側を含み、かつ少 なくとも1つの変形域を含み、少なくとも1つの前記変形域は3/1000インチ( 約8/1000cm)の最小半径を有する隅肉部を有する切欠きにより形成されている、 ことを特徴とする外科ステープル。 18.次の工程から成ることを特徴とする所定第1領域にわたって第1組織の表 面を第2組織の表面へ結合する方法: 前記第1組織表面を前記第2組織表面に接触させ、 前記第1組織の第1層および前記第2層へクラウンを有する複数のステープル を侵入させ、かつ 前記第1領域内での複数の第2組織領域を実質的均一に圧縮し、前記圧縮を前 記クラウンと実質的平行の方向へ行う。 19.前記均一圧縮を前記組織へ複数のステープルを挿入することにより行う、 請求項18の方法。 20.実質的均一圧縮を行った後に前記第1および第2脚部のそれ以上の屈曲を 阻止する手段を更に含む、請求項1のステープル装置。 21.前記第1脚部と前記第2脚部において実質的直角を形成した後にそれ以上 のステープルの変形を阻止する工程を更に含む、請求項6の方法。 22.クラウン、および少なくとも2本の脚部から成り、 少なくとも2本の前記脚部の少なくとも1本の脚部は少なくとも1つの変形域 を含み、少なくとも1つの前記変形域はシャープな切 欠きにより形成されていないことを特徴とする外科ステープル。 23.前記変形域は3/1000インチ(約8/1000cm)の最小半径の隅肉部を有する 切欠きにより形成されている、請求項22のステープル。 24.複数のステープルの脚部を組織へ挿入する手段、前記ステープルの各々は クラウンを含む、および 前記クラウンに対して前記組織を実質的均一に圧縮するために前記ステープル の各々の脚部を変形させる手段から成ることを特徴とする止血を行う装置。[Procedure Amendment] Patent Law Article 184-7, Paragraph 1 [Submission Date] July 4, 1994 [Correction content]                         The scope of the claims   twenty five. Consisting of a crown and at least two legs,   At least one of the legs includes a deformation area, and the deformation area is elongated. Staples to do.   26. The staple material forming at least one of the deformation zones is at least two. The staple of claim 1, including substantially parallel sides.   27. The side of the substantially parallel side is substantially perpendicular to the third side. Staples.   28. The two substantially parallel sides are mutually adjacent when the deformation zone deforms at a right angle. The staple according to claim 3, which does not contact with each other.   29. Consisting of a crown and at least two legs,   Each of the legs has a deformation area, and the staple material forming the deformation area is a single point. To form two side portions that do not contact with each other and are connected via the third side portion. Characteristic staples.   30. Consisting of a crown and at least two legs,   At least one of the legs includes a deformation region, the deformation region having a substantially constant cross section. A staple having an elongated region.   31. Consisting of a crown and at least two legs,   At least one of the legs includes a zone of deformation, the zone of deformation having substantially parallel sides. A staple including an elongated region having. [Procedure Amendment] Patent Act Article 184-8 [Submission date] December 15, 1994 [Correction content]                         The scope of the claims   17. Crown, and   Consists of at least two legs,   At least one of the at least two legs includes an inner side and an outer side, and At least one deformation zone, at least one said deformation zone being 3/1000 inch ( Formed by a notch having a fillet with a minimum radius of about 8/1000 cm), A surgical staple characterized in that.   18. A table of a first tissue over a predetermined first region characterized by comprising the following steps: Method of joining the face to the surface of the second tissue:   Contacting the first tissue surface with the second tissue surface,   Plural staples having crowns to the first and second layers of the first tissue Intrudes, and   Compressing the plurality of second tissue regions within the first region substantially uniformly, and It is performed in a direction substantially parallel to the crown.   19. Performing the uniform compression by inserting a plurality of staples into the tissue, 19. The method of claim 18.   20. Further bending of the first and second legs after substantially uniform compression The stapling device of claim 1, further comprising blocking means.   twenty one. No more after forming a substantially right angle in the first leg and the second leg 7. The method of claim 6, further comprising the step of inhibiting deformation of the staples of.   twenty two. Consisting of a crown and at least two legs,   At least one of the at least two legs has at least one deformation zone At least one of the deformation zones is sharp A surgical staple characterized in that it is not formed by a notch.   twenty three. The deformation area has a fillet with a minimum radius of 3/1000 inch (about 8/1000 cm) 23. The staple according to claim 22, which is formed by a notch.   twenty four. Means for inserting legs of a plurality of staples into tissue, each of said staples Including a crown, and   The staples for compressing the tissue substantially uniformly against the crown A hemostasis device comprising means for deforming each leg of the.

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Claims (1)

【特許請求の範囲】 1.所定のクラウン長を有するクラウン、 少なくとも2本の脚部、各脚部は端部を有し、前記クラウンに実質的垂直であ り、かつ少なくとも1つの変形域を含み、各変形域は前記ステープルの脚部の隣 接部よりも屈曲し易い前記ステープルの脚部の第1部として形成されている、各 脚部は前記変形域に隣接しかつ前記変形域と前記ステープルの脚部の前記端部と の間に位置する第2部、および前記変形域に隣接しかつ前記変形域と前記ステー プルの前記クラウンとの間に位置する第3部を有し、前記第2部および第3部の 各々は所定長を有し、少なくとも2本の前記脚部の第1脚部の前記第2部の長さ と、少なくとも2本の前記脚部の第2脚部の前記第2部の長さは、加算したとき に前記ステープルの前記クラウン長と実質的に等しい、 ステープル留めする組織へ前記ステープルを押圧するためのステープルプッシ ャ、前記ステープルプッシャは前記ステープルの前記クラウン上に力を加えるよ うに構成されている、 アンビル、前記アンビルは前記脚部の前記端部と接触して、前記第1脚部の第 2部が前記第1脚部の第3部に対して実質的直角を形成するまで前記第1脚部の 第1部を変形させ、かつ前記第2脚部の第2部が前記第2脚部の第3部に対して 実質的直角を形成するまで前記第2脚部の第1部を変形させるように構成された 少なくとも1つのチャンネルを含む、 から成るステープルから成ることを特徴とするステープル装置。 2.少なくとも2本の前記脚部の少なくとも1本はその慣性モーメントを小さ くすることにより形成される少なくとも1つの変形域を有する、請求項1のステ ープル。 3.少なくとも2本の前記脚部の少なくとも1本はその弾性率を小さくするこ とにより形成される少なくとも1つの前記変形域を有する、請求項1のステープ ル。 4.少なくとも2本の前記脚部の少なくとも1本はその慣性モーメントおよび 弾性率を小さくすることにより形成される少なくとも1つの前記変形域を有する 、請求項1のステープル。 5.少なくとも2本の前記脚部の少なくとも1本はその断面積を小さくするこ とにより形成される少なくとも1つの前記変形域を有する、請求項1のステープ ル。 6.外科ステープルを組織へ挿入する方法であって、前記外科ステープルは所 定長および少なくとも2本の脚部を有するクラウンを含み、少なくとも2本の前 記脚部の各々は端部を有し、かつ少なくとも1つの変形域を含み、各変形域は前 記ステープルの脚部の隣接部よりも屈曲し易い前記ステープル脚部の第1部とし て形成されている、各脚部は前記変形域に隣接しかつ前記変形域と前記ステープ ル脚部の前記端部との間に位置する第2部、および前記変形域に隣接しかつ前記 変形域と前記ステープルの前記クラウンとの間に位置する第3部を有し、前記第 2部および第3部の各々は所定長を有し、少なくとも2本の前記脚部の第1脚部 の前記第2部の長さと、少なくとも2本の前記脚部の第2脚部の前記第2部の長 さは、加算したときに前記ステープルの前記クラウンの長と実質的に等しい、 前記方法は次の工程から成ることを特徴とする: ステープル留めする組織の第1側上にステープルプッシャを位置決めし、 ステープル留めする組織の第2側上にアンビルを位置決めし、 前記ステープルの前記クラウンへ前記ステープルプッシャを付勢し、それによ り前記脚部の前記端部をステープル留めする組織へ押 圧しかつ前記ステープルの脚部の前記端部を前記アンビルへ付勢し、かつ 前記第1脚部の前記第2部と前記第1脚部の前記第3部との間に前記組織の前 記第2側上で実質的直角を形成し、かつ前記第2脚部の前記2部と前記第2脚部 の前記第3部との間に前記組織の前記第2側上で実質的直角を形成し、かつ前記 ステープルがステープル留めする組織を実質的に包囲する実質的閉鎖矩形を形成 するまで前記脚部の前記端部を前記アンビルへ連続的に付勢する。 7.複数のステープルを使用し、かつ複数の前記ステープルの少なくとも2つ が相互に対して長さの異なる対応する脚部を含む、請求項6の方法。 8.前記ステープルの少なくとも2つを相互に対して異なる量だけ前記組織へ 挿入する、請求項6の方法。 9.前記変形域の少なくとも1つは細長い、請求項1のステープル。 10.前記脚部は各々単一の変形域を有する、請求項1のステープル。 11.前記脚部の各々の前記端部は中心からずれた点を含む、請求項1のステー プル。 12.少なくとも2本の脚部を含み、 少なくとも2本の前記脚部の少なくとも2本は上変形域および下変形域を有し 、 前記下変形域は前記上変形域よりも屈曲し易いことを特徴とするステープル。 13.次の工程から成ることを特徴とするステープル留めする方法: ステープル留めする組織へ少なくとも2本の脚部を有するステー プルを挿入し 少なくとも2本の前記脚部の少なくとも1本の第1セクションを少なくとも2 本の前記脚部の少なくとも1本の第2セクションに対して実質的直角に変形し、 少なくとも2本の前記脚部の少なくとも1本の第3セクションを少なくとも2 本の前記脚部の少なくとも1本の前記第2セクションに対して実質的直角に変形 し、それにより前記第3セクションをステープル留めする組織へ埋没させて前記 第2セクションを相互に対して接近させてその間での組織の突出を防止する。 14.前記第1セクションおよび前記第2セクションを変形域により分離する、 請求項13の方法。 15.前記第2セクションおよび前記第3セクションを変形域により分離する、 請求項13の方法。 16.前記第2セクションおよび前記第3セクションを変形域により分離する、 請求項14の方法。 17.クラウン、および少なくとも2本の脚部から成り、 少なくとも2本の前記脚部の少なくとも1本は内側および外側を含み、かつ少 なくとも1つの変形域を含み、少なくとも1つの前記変形域は3/1000インチ( 約8/1000cm)の最小半径を有する隅肉部を有する切欠きにより形成されているこ とを特徴とする外科ステープル。 18.次の工程から成ることを特徴とする所定第1領域にわたって第1組織の表 面を第2組織の表面へ結合する方法: 前記第1表面を前記第2表面を接触させ、かつ 前記第1組織内で複数の第2組織領域を均一に圧縮する。 19.前記均一圧縮を前記組織へ複数のステープルを挿入することにより行う、 請求項18の方法。 20.前記少なくとも2本の脚の各々に直角を形成した後に前記第1および第2 脚部のそれ以上の屈曲を阻止する手段を更に含む、請求項1のステープル装置。 21.前記第1脚部と前記第2脚部において実質的直角を形成した後にそれ以上 のステープルの変形を阻止する工程を含む、請求項6の方法。 22.クラウン、および少なくとも2本の脚部から成り、 少なくとも2本の前記脚部の少なくとも1本の脚部は少なくとも1つの変形域 を含み、少なくとも1つの前記変形域はシャープな切欠きにより形成されていな いことを特徴とする外科ステープル。 23.前記変形域は3/1000インチ(約8/1000cm)の最小半径の隅肉部を有する 切欠きにより形成されている、請求項22のステープル。 24.複数のステープルの脚部を組織へ挿入する手段、および組織を均一に圧縮 するために前記ステープルの各々を変形させる手段から成ることを特徴とする止 血を行う装置。[Claims]   1. A crown having a predetermined crown length,   At least two legs, each leg having an end and being substantially perpendicular to the crown; And includes at least one deformation zone, each deformation zone being adjacent to the staple leg. Formed as the first portion of the leg portion of the staple, which is easier to bend than the contact portion, The leg is adjacent to the deformation zone and the deformation zone and the end of the staple leg. A second portion located between the deformation area and the deformation area adjacent to the deformation area. A third part located between the pull and the crown, the second part and the third part Each has a predetermined length and the length of the second portion of the first leg of at least two of the legs And the length of the second part of the second leg of at least two of the legs, when added Substantially equal to the crown length of the staple,   Staple pusher for pressing said staple against the tissue to be stapled The staple pusher exerts a force on the crown of the staple. Is configured as   An anvil, said anvil being in contact with said end of said leg, Until the two parts form a substantially right angle with the third part of the first leg The first part is deformed, and the second part of the second leg is relative to the third part of the second leg. Configured to deform the first portion of the second leg until forming a substantially right angle Including at least one channel, A stapling apparatus comprising a staple made of.   2. At least one of the at least two legs has a small moment of inertia. The system of claim 1 having at least one deformation zone formed by combing. Purple.   3. At least one of the at least two legs has a reduced elastic modulus. The staple of claim 1 having at least one said deformation zone formed by Le.   4. At least one of the at least two legs has a moment of inertia and Having at least one said deformation zone formed by reducing the elastic modulus The staple of claim 1.   5. At least one of the at least two legs has a reduced cross-sectional area. The staple of claim 1 having at least one said deformation zone formed by Le.   6. A method of inserting surgical staples into tissue, wherein the surgical staples are At least two fronts, including a crown having a constant length and at least two legs Each of the legs has an end and includes at least one deformation zone, each deformation zone being As the first part of the staple leg portion, which is more easily bent than the adjacent portion of the staple leg portion. Each leg is formed adjacent to the deformation zone and the deformation zone and the staple. A second part located between said end of said leg and said deformation zone and said A third portion located between the deformation zone and the crown of the staple; Each of the second part and the third part has a predetermined length, and the first leg of at least two of the legs And the length of the second part of the second leg of at least two of the legs Is substantially equal to the length of the crown of the staple when added,   The method is characterized in that it comprises the following steps:   Position the staple pusher on the first side of the tissue to be stapled,   Position the anvil on the second side of the tissue to be stapled,   Biasing the staple pusher against the crown of the staple, thereby Push the end of the leg into the tissue to be stapled. Pressing and biasing the ends of the staple legs to the anvil, and   The front of the tissue between the second part of the first leg and the third part of the first leg Forming a substantially right angle on the second side, and the second part of the second leg and the second leg. Forming a substantially right angle with the third portion of the tissue on the second side of the tissue, and Forming a substantially closed rectangle in which the staple substantially surrounds the tissue to be stapled Until the end of the leg is continuously biased toward the anvil.   7. Using a plurality of staples and at least two of said plurality of staples 7. The method of claim 6, wherein each includes corresponding legs having different lengths relative to each other.   8. At least two of the staples to the tissue in different amounts relative to each other The method of claim 6, wherein the method comprises inserting.   9. The staple of claim 1, wherein at least one of the deformation zones is elongated.   Ten. The staple of claim 1, wherein each leg has a single zone of deformation.   11. The stay of claim 1, wherein the end of each of the legs includes an off-center point. pull.   12. Including at least two legs,   At least two of the at least two legs have an upper deformation zone and a lower deformation zone ,   The staple which is characterized in that the lower deformation region is more easily bent than the upper deformation region.   13. A stapling method comprising the following steps:   A staple having at least two legs to the tissue to be stapled Insert pull   At least two first sections of at least two of said legs; Deforming at a substantially right angle to at least one second section of said legs of the book,   At least two third sections of at least two of said legs; Deformed at a substantially right angle to at least one of the second sections of the legs of the book So that the third section is embedded in the stapled tissue and The second sections are brought close to each other to prevent tissue protrusion between them.   14. Separating the first section and the second section by a deformation zone, 14. The method of claim 13.   15. Separating the second section and the third section by a deformation zone, 14. The method of claim 13.   16. Separating the second section and the third section by a deformation zone, 15. The method of claim 14.   17. Consisting of a crown and at least two legs,   At least one of the at least two legs includes an inner side and an outer side, and At least one deformation zone, at least one said deformation zone being 3/1000 inch ( It is formed by a notch with a fillet having a minimum radius of about 8/1000 cm). And surgical staples.   18. A table of a first tissue over a predetermined first region characterized by comprising the following steps: Method of joining the face to the surface of the second tissue:   Contacting the first surface with the second surface, and   Uniformly compressing the plurality of second tissue regions within the first tissue.   19. Performing the uniform compression by inserting a plurality of staples into the tissue, 19. The method of claim 18.   20. After forming a right angle in each of the at least two legs, the first and second The stapling device of claim 1, further comprising means for preventing further flexion of the legs.   twenty one. No more after forming a substantially right angle in the first leg and the second leg 7. The method of claim 6 including the step of inhibiting deformation of the staples of.   twenty two. Consisting of a crown and at least two legs,   At least one of the at least two legs has at least one deformation zone And at least one of the deformation zones is not formed by a sharp notch. Surgical staples characterized by the fact that they are good.   twenty three. The deformation area has a fillet with a minimum radius of 3/1000 inch (about 8/1000 cm) 23. The staple according to claim 22, which is formed by a notch.   twenty four. Means to insert multiple staple legs into tissue and compress tissue evenly Means for deforming each of said staples to A device that performs blood.
JP6520120A 1993-03-02 1994-03-01 Surgical equipment Expired - Fee Related JP2672713B2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US08/024,501 US5342396A (en) 1993-03-02 1993-03-02 Staples
US08/024,501 1993-03-02
US16639293A 1993-11-23 1993-11-23
US08/166,392 1993-11-23
US166,392 1993-11-23
US024,501 1993-11-23

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JPH08507708A true JPH08507708A (en) 1996-08-20
JP2672713B2 JP2672713B2 (en) 1997-11-05

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JP (1) JP2672713B2 (en)
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BR (1) BR9405840A (en)
CA (1) CA2155750C (en)
WO (1) WO1994020030A1 (en)

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AU704533B2 (en) 1999-04-29
JP2672713B2 (en) 1997-11-05
BR9405840A (en) 2000-04-18
CA2155750C (en) 1998-08-18
EP0689400A1 (en) 1996-01-03
WO1994020030A1 (en) 1994-09-15
CA2155750A1 (en) 1994-09-15
AU6356894A (en) 1994-09-26
EP0689400A4 (en) 1996-08-28

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