JPH0436699B2 - - Google Patents

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Publication number
JPH0436699B2
JPH0436699B2 JP60504557A JP50455785A JPH0436699B2 JP H0436699 B2 JPH0436699 B2 JP H0436699B2 JP 60504557 A JP60504557 A JP 60504557A JP 50455785 A JP50455785 A JP 50455785A JP H0436699 B2 JPH0436699 B2 JP H0436699B2
Authority
JP
Japan
Prior art keywords
fastener
assembly
cam
actuator
cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP60504557A
Other languages
English (en)
Other versions
JPS61501894A (ja
Inventor
Deiuitsudo Toomasu Guriin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United States Surgical Corp
Original Assignee
United States Surgical Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United States Surgical Corp filed Critical United States Surgical Corp
Publication of JPS61501894A publication Critical patent/JPS61501894A/ja
Publication of JPH0436699B2 publication Critical patent/JPH0436699B2/ja
Granted legal-status Critical Current

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Classifications

    • 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
    • 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
    • A61B2017/07214Stapler heads
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B2017/2926Details of heads or jaws
    • A61B2017/2927Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B2017/2926Details of heads or jaws
    • A61B2017/2927Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
    • A61B2017/2929Details of heads or jaws the angular position of the head being adjustable with respect to the shaft with a head rotatable about the longitudinal axis of the shaft

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Catching Or Destruction (AREA)
  • Toys (AREA)

Description

請求の範囲 1 長手方向の列の外科用留め具を身体組織に付
けるための装置であつて、 長手方向の列の複数本の外科用留め具と、 長手方向の列と平行でかつこの列と同延の剛性
の長手方向のプツシヤ作動器部材を有し、留め具
を長手方向の列と直交する軸線に沿つて身体組織
に押し込む留め具プツシヤ装置と、 プツシヤ作動器部材の一端が最初に、プツシヤ
作動器部材の他端よりも実質的に速く直交軸線と
平行に移動してブツシヤ作動器部材の前記一端に
隣接する留め具をブツシヤ作動器部材の前記他端
に隣接する留め具に先立つて身体組織に付けるよ
うにプツシヤ作動器部材を前進させる、留め具プ
ツシヤ装置と連動する運動伝達手段と、を含む装
置。 2 留め具が付けられるとき、直交軸線と平行
な、プツシヤ作動器部材の前記他端の運動速度を
増やすための手段をさらに含む、請求の範囲第1
項に記載の装置。 3 前記運動伝達手段と前記運動速度を増すため
の手段は、全ての留め具が付けられたとき、プツ
シヤ作動器部材の両端が直交軸線と実質的に同じ
距離移動しているように協働する、請求の範囲第
2項に記載の装置。 4 前記運動伝達手段は、プツシヤ作動器部材に
当接するカムバーからなり、該ガムバーは、長手
方向の列と実質的に平行にプツシヤ作動器部材と
摺動接触する、請求の範囲第3項に記載の装置。 5 第1及び第2のカムスロツトと、カムバーに
連結されていて、前記カムスロツト内を摺動され
る第1及び第2のカムホロワーピンとをさらに含
み、カムスロツトとカムホロワーピンは、カムバ
ーが長手方向の列と実質的に平行に移動すると
き、カムバーを直交軸線と実質的に平行な運動成
分で移動させるため、プツシヤ作動器部材の前記
一端と前記他端にそれぞれ隣接して位置決めされ
ている、請求の範囲第4項に記載の装置。 6 第1のカムホロワーが通るカムスロツトの最
初の部分は、第2のカムホロワーが通る第2のカ
ムスロツトよりももつと直交軸線と平行に近い、
請求の範囲第5項に記載の装置。 7 第1のカムスロツトの最初の部分の後、第2
のカムスロツトよりももつと長手方向の列と平行
に近い第2のカムスロツトの中間部分がある、請
求の範囲第6項に記載の装置。 発明の背景 本発明は外科用留め具を身体組織に付けるため
の装置に関し、特に比較的多数のかかる留め具を
実質的に同時に付けるための装置に関する。 比較的多数の外科用留め具を同時に又は実質的
に同時に付けるための器具は、例えばヒルスチ等
の米国特許第3275211号、グリーンの米国特許第
4402444号およびグリーンの米国特許第4402445号
で知られている。留め具はヒルスチ等の特許に示
すように金属製外科用ホチキス針の形態を取つて
も良いし、或は、グリーンの米国特許第4402445
号に示すように最初2つの部分の非金属製外科用
留め具であつても良い。「外科用留め具」という
用語はここでは、これらの型式の留め具の両方に
共通な用語として用いられる。 或る外科処理では、大変多数の外科用留め具を
付ける必要がある。例えば、グリーンの米国特許
第4402444号に示す装置は間隔の狭い4列の50本、
60本或はもつとそれ以上の留め具を付けるように
なつている。これらの留め具をすべてぴつたり同
時に打込む場合には、必要とされるピーク力は大
変大きくなる。これは、大変強く、その分コスト
高になる器具の設計を必要とする。これは又、器
具を比較的操作しにくくする。 従つて本発明の目的は、比較的多数の外科用留
め具を付ける器具に必要とされるピーク力を減少
させることにある。 発明の概要 本発明のこの目的およびその他の目的は、本発
明の原理によれば、留め具打込み組立体の剛性部
材の一端に隣接する留め具を前記剛性部材の他端
に隣接する留め具に先行して付けるために、留め
具打込み組立体の剛性部材の一端を、最初に剛性
部材の他端よりも早く止め具打込み方向に移動さ
せるための装置を有する外科用留め具付け装置を
提供することによつて達成される。このようにし
て、留め具付け荷重を時間に亘つて分布させ、必
要とされるピーク力を、留め具のすべてをぴつた
り同時に付けるのに要するピーク力と比較して減
少させる。 本発明の一層の特徴、その性質、および種々の
利点は添附図面および本発明の以下の詳細な説明
からもつと明らかになろう。
【図面の簡単な説明】
第1図は本発明の原理に従つて変更しうる外科
用留め具付け装置の斜視図である。 第2図は第1図の装置の操作サイクルの最初の
段階を示す第1図の装置の一部断面の部分立面図
である。 第3図は操作サイクルの次の段階を示す第2図
と同様な図である。 第4図は第1図乃至第3図の装置の一部の分解
斜視図である。 第5図乃至第7図は第1図乃至第4図の装置の
種々の部分の分解斜視図である。 第8図は第1図乃至第7図の装置の操作サイク
ルの最初の段階を示す、装置の一部分の分解断面
立面図である。 第9図乃至第12図は装置の操作サイクルの
次々の段階を示す第8図と同様な図である。 第13図は第1図乃至第12図の装置を本発明
によつてどのようにして変形しうるかを示す第1
0図と同様な図である。
【発明の詳細な説明】
本発明を採用することができる環境の中で、関
節式外科用留め具付け器具が同日出願の米国特許
第662677号(ケースUSSC1052)に示されてい
る。これらの器具のうちの1つ(上記の同日出願
の第1図乃至第12図と夫々等しい第1図乃至第
12図に示す)を先ず詳細に説明することにす
る。次いで、本発明によるその装置の変形例を第
13図を参照して説明することにする。 第1図に示すように、本発明により変形しうる
外科用留め具付け器具10は基部に近い方の作動
器組立体20と、末端の方の留め具付け組立体2
00と、中間のシヤフト組立体100とを有す
る。 留め具付け組立体20は基部に近い方の留め具
保持部品210および末端の方のアンビル部品2
80を有する。アンビル部品280は、留め具保
持部品210に対して一定の回動および並進運動
可能に取付けられ、従つてアンビル部品280を
第1図に実線で示すように、留め具保持部品21
0から並進かつ回動させ、留めるべき組織12を
留め具保持部品210の末端の方の表面とアンビ
ル部品280の基部に近い方の表面との間に挿入
することができる。 留め具保持部品210は、シヤフト組立体の関
節即ち継手150をちようど越えたところでシヤ
フト組立体100の末端の方の端部に連結されて
いる。図示した装置では、継手150は、球形ボ
ール152(第2図)を補足し合うソケツト16
0に回転自在に取つけたものからなる。継手15
0により、留め具付け組立体200を、すべてボ
ール152の中心で交差する互いに直交の3軸線
102,104,106の各々を中心に回転させ
る。留め具付け組立体200のいくつかのありう
る位置を第1図に仮想線で示す。シヤフト組立体
100の基部に近い方の端部を、器具の長手方向
軸線である軸線102を中心に組立体100およ
び200が更に回転運動できるように作動器組立
体20に回転自在に取付けても良い。継手150
および作動器組立体20におけるシヤフト組立体
100の回転取付け部以外、シヤフト組立体10
0はその長手方向軸線に対して横方向に実質的に
剛性である。シヤフト組立体100は又軸線10
2と平行に実質的に剛性である。 作動器組立体20は、基部に近い方のハンドル
30と、手動操作可能なクランプ作動器レバー4
0と、手動操作可能な留め具作動器レバー60と
を有する。作動器レバー40を作動器組立体20
の中へ下方に回動させると、アンビル部品280
の下方部分を留め具保持部品210に向かつて引
つ張る。留め具作動器レバー60をハンドル30
に向かつて強く振ると、留め具保持部品210は
この部品の中に収容されている外科用留め具をア
ンビル部品280に向かつて末端の方向に打ち込
む。安定掛け金90を第3図に仮想線で示すよう
に、レバー60から下方に回動させるまでは、留
め具作動器レバー60を操作することができな
い。 本装置の構造をより詳細に考える前に、装置の
操作全体を概略的に説明することにする。装置の
最初の状態を第1図、第2図および第8図に示
す。留め具付け組立体200を、所望ならば、軸
線102,104,106のうちの任意の1つを
中心に希望量だけ回転させて、留め具付け組立体
200が作動器組立体20に対して希望の角度向
きをもつようにする。継手150およびシヤフト
組立体100と作動器組立体20との間の回転連
結部は好ましくは十分に堅いから、装置の次の操
作中、組立体20,200は、これらが取るどん
な相対的角度向きをも維持する。 留めるべき組織12はアンビル部品280と留
め具保持部品210との間に置かれる。アンビル
部品280の上方部分を第9図に示すように、留
め具保持部品210の対向した上方部分に向かつ
て手で移動させ、掛け金ボタン212を末端の方
向に手で押し、その結果、掛け金214がアンビ
ル部品280のキヤツチ282に係合する。これ
はアンビル部品280の上方端を留め具保持部品
210の上方端に対して保持して組織をこれらの
部品間に締付け始める。 次の操作段階はクランプ作動器レバー40を第
3図に示すように作動器組立体20の中へ下向に
回動させることである。これは第3図および第1
0図に示すように、アンビル部品280の下方端
を留め具保持組立体210の下方端に向かつて引
き込む。今や、部品210と280は互いに実質
的に平行になつて組織12をこれらの部品の対向
表面間にしつかり締付ける。今や、組織は留めら
れようとしている。 留め具を付けるときには、安全掛け金90を第
3図に仮想線で示すように下方に回動させる。次
いで、留め具作動器レバー60を、これえ又第3
図に仮想線で示すように、ハンドル30に向かつ
て回動させる。これにより、留め具保持組立体2
10は第11図に示すように、複数の金属製外科
用ホチキス針202の脚部を組織12にそしてア
ンビル部品280に向かつて同時に或は実質的に
同時に打ち込む。アンビル部品280はホチキス
針の脚部の端を折り曲げてホチキス針を組織に固
定する。(金属製ホチキス針がこの装置に採用さ
れているが、グリーンの米国特許第4402445号に
示すもののような2部品形プラスチツク留め具を
変形例として使用しうることは理解されよう)。
今や、組織留め手順は完了である。 留めた組織は第12図に示すように、掛け金ボ
タン212を手で押し上げることによつて装置か
ら取り出される。これにより、掛け金214はキ
ヤツチ282を開放し、これにより、アンビル部
品280を留め具保持部品210から回動させ
る。今や、留めた組織を装置から取り出すことが
できる。 今、装置の内部構造および操作を先ず、第2図
を参照して説明すると、クランプ作動器レバー4
0は、ピボツトピン42によつて作動器組立体フ
レーム22に回動自在に連結されている。トグル
リンク44の一端はピン46によつてレバー40
に回動自在連結され、他端はピン48によつてス
ライド50に回動自在に連結されている。スライ
ド50はフレーム22のスロツト24に長手方向
往復運動可能に取付けられている(第4図も参
照)。レバー40を第2図および第4図に示すよ
うに、作動器組立体20の残部から外に回動させ
るときには、スライド50はスロツト24内の末
端の方の位置にある。レバー40を第3図に示す
ように、作動器組立体20の残部に向かつて下方
に回動させるときには、スライド50はスロツト
24の中で基部に近い方に移動する。レバー40
の完全操作位置では、ピン46はピン42,48
を通る直線を僅かに通り過ぎているから、レバー
40は完全操作位置にとどまるようになる。 第1の横方向に撓み部材110の基部に近い方
の端はスライド50に連結される。部材110は
金属ワイヤでも良いし或はケーブルでも良く、こ
こでは便宜上、部材110をケーブル110と称
する。ケーブル110は、シヤフト組立体100
の長さのほとんどの外側部材である中空管状シヤ
フト120を通過する。ケーブル110は又ボー
ル152の長手方向孔154(第7図)を通して
留め具付け組立体200の中へ通る。ケーブル1
10の末端の方の端はアンビル部品280に連結
される(第5図も参照)。従つて、レバー40を
作動器組立体20の残部に向かつて下方に回動さ
せるときには、ケーブル110はアンビル部品2
80の下方端を留め具保持部品210に向かつて
引き入れる。ケーブル110は横方向に撓むこと
ができるから、ケーブル110は継手150の回
動を干渉しない。又、ケーブル110は軸線10
2,104,106の交点(第1図)を通過する
から、レバー40の操作によつて張力状態を取る
ときでも、ケーブル110は組立体20および2
00の相対的な回転向きを変えない。 第2図に戻ると、留め具作動器レバー60はピ
ン26によつてフレーム22に回動自在に連結さ
れている。安全掛け金90もピン28によつてハ
ンドル30に回動自在に連結されている。第2の
横方向に撓む部材112の基部に近い方の端はア
ンカー114でフレーム22に固定的に取付けら
れている。部材112はケーブル110と同様で
あるのが良く、従つてこれをケーブル112と称
する。ケーブル112の基部に近い方の部分は、
軸64によつてレバー60に回転自在に取付けら
れているローラ62のまわりを通る。ローラ62
を通過した後、ケーブル112はシヤフト120
および継手150を末端方向に通過して留め具保
持部品210の中へ通る。第5図および第8図で
最も良くわかるように、ケーブル112が留め具
保持部品210に入るとき、ケーブル112はロ
ーラ220のまわりを通る。ローラ220はケー
ブル112をアンカー222まで向き変えし、こ
のアンカー222はケーブル112の末端の方の
端をカムバー230に連結する。従つてレバー6
0をハンドル30に向かつて回動させるときに
は、ケーブル112はカムバー230を引き下げ
る。ケーブル110と同じように、ケーブル11
2は軸線102,104,106の交点を通過
し、そして十分に横方向に撓むことができるの
で、ケーブル112は、レバー60の操作によつ
て張力状態を取るときでも継手150の回動を干
渉せず、即ち、組立体20と200の相対的な回
動向きを変える。 カムバー230は、プツシヤ作動器部材240
の基部に近い方に向いた溝の中に配置されている
(第6図参照)。カムバー230の末端の方の面は
部材240のこの溝の底に当つてこの底に沿つて
摺動できる。プツシヤ作動器部材240は留め具
保持部品210の2つの平行な側方に間隔をへだ
てたフレーム部材250(第5図)間に配置され
ている。プツシヤ作動器部材240の末端の方の
表面はプツシヤ部材260の基部に近い方の端に
当り、プツシヤ部材260は、ホチキス針202
の後で、留め具ホルダ270の孔272の中へ延
びるプツシヤフインガ262を有している。プツ
シヤ作動器部材240は、プツシヤ部材260に
よつてホチキス針202が打ち込まれる軸線と実
質的に平行に移動するように構成されている。こ
の拘束は、部材240からフレーム部材250の
ガイドスロツト252の中へ側方かつ外方に延び
るガイドピン242によつて行なわれる。プツシ
ヤ作動器部材240も又ピン242を中心に回動
することができる。 プツシヤ作動器部材240と、プツシヤ部材2
60と、留め具ホルダ270とによつて、留め具
プツシヤ装置が構成されている。 カムバー230がケーブル112によつて引き
下げられると、カムバー230を貫通してフレー
ム部材250のカムスロツト254の中へ側方に
突出するカムホロワーピン232の作動でカムバ
ー230を末端の方向に強制的に移動させる。カ
ムスロツト254は傾斜しているから、カムバー
230がケーブル112の運動に応答して下方に
移動すると、カムバー230は末端方向にも移動
する。カムバー230はプツシヤ作動器部材24
0に沿つて長手方向に摺動するから、カムバー2
30の末端方向の運動だけが部材240に及ぼさ
れる。部材240が末端方向に移動すると、部材
240はプツシヤ部材260、従つてホチキス針
202を末端の方向に駆動する。かくして、要素
230,232,240,242,250,25
2,254および260は、ケーブル112の末
端の方の端の下方運動をホチキス針202の末端
方向の運動に変換するための装置を構成する。 シヤフト組立体100と作動器組立体20の相
対的回転を可能にするこれらの組立体間の連結部
は第4図で最も良くわかる。シヤフト120の基
部に近い方の端は、作動器組立体20の外側シエ
ルの2つの対象の半部70a,70bに形成され
ている円筒形ソケツト80に回転自在に取付けら
れている。シエル半部70は、リベツト、接着剤
等のような任意適当な手段で互いに保持されてい
る。シヤフト120の環状カラー122はソケツ
ト80の環状拡大部82に受け入れられてシヤフ
ト120を作動器組立体20に対して的確な長手
方向位置に保持する。所望ならば、作動器組立体
20に対するシヤフト120の回転量をシヤフト
120のストツプ124と作動器組立体のシエル
70のストツプ84とによつて制限するのが良
い。シエル半部70は好ましくは、シヤフト12
0に十分な力で係合して装置の使用者が確立した
シヤフト120と作動器組立体20の相対的な角
度向きを摩擦的に維持する。 継手150の詳細な構造を第7図に示す。中空
の一般的に截頭円錐形の脚部156の末端の方の
端にはボール152が形成されている。中空の円
筒形シヤンク158が脚部156の基部から基部
の方向に延びている。シヤンク158はシヤフト
120の末端の方の端に圧力嵌めさている。ボー
ル152はソケツト160にぴつたりと嵌まり、
その構造は第9図でもつとも良くわかる。ソケツ
ト160は末端の方の座部材162を有し、座部
材162は軸224でローラ220を支持し、か
つピン164によつてフレーム部材250に固定
的に取付けられている(第7図)。座部材162
は中空であり、そして、ボール152の末端の方
の端部分を受け入れるための基部に近い方に向い
た環状座面166を有している。座部材162の
円筒形外表面の基部に近い方の部分はねじ山をも
つていてカラー170を受け入れる。カラー17
0は環状保持リング172をボール152の表面
の基部に近い方の部分に押しつける。従つて、ボ
ール152は座表面166と保持リング172と
の間に保持されるが、軸線102,104,10
6の各々を中心にこれらの部材に対して回転する
ことができる。表面166および172は好まし
くは、ボール152に十分な力で係合して組立体
20と200の相対的な角度向きが装置の使用者
によつてどんなに確立されても摩擦的に維持す
る。特に好ましい実施例では、ボール152はス
チールであり、部材162および172はナイロ
ンのような熱可塑性材料で作られる。 アンビル部材280は、フレーム部材250の
細長いスロツト256の中にあるピン290によ
つて留め具保持部品210に回転自在に連結され
ている。スロツト256は装置の長手方向軸線と
平行に細長く、従つてアンビル部品280はピン
290を中心に回動することができるとともにス
ロツト256と平行に並進することができる。ア
ンビル部品280は、アンビル部品280と留め
具保持部品210との間で圧縮される圧縮コイル
ばね292によつて留め具保持部品210から遠
ざかるように弾性的に付勢されている。掛け金2
14は、掛け金214と留め具保持部品210の
本体とに作用する圧縮コイルばね216によつ
て、例えば第8図に示すように、基部の方向に弾
性的に付勢されている。 上記の装置は第13図に示すように、本発明に
よつて変更することができる。第1図乃至第12
図の装置に採用されている4つの等しいカムスロ
ツト254の代わりに、第13図では、2つの上
方カムスロツト354(第13図では、そのうち
の1つだけが見える)は互いに等しいが2つの等
しい下方のカムスロツト454(第13図では、
そのうちの1つだけが見える)とは異なる。特
に、下方カムスロツト454の各々は最初の部分
454aを有し、この部分は、上方カムスロツト
354の対応する最初の部分354aよりも末端
の方向にもつとゆるやかに傾斜している。これに
より、カムバー230の下方端およびプツシヤ作
動器部材240の下方端を最初に、これらの部材
の上方端よりももつと急速に末端の方向に移動さ
せる。これにより、留め具保持部品210の底に
近いホチキス針202を留め具保持部品210の
頂部に近いホチキス針202よりももつと急速に
組織12に向かつて前進させる。従つて、ホチキ
ス針の端はすべて、アンビル部品280に同時に
達しない。むしろ、留め具保持部品210の底に
近いホチキス針が先ずアンビル部品280に達し
て頂部に近いホチキス針の前に、アンビル部品に
向かつて折曲げを開始する。従つて、各ホチキス
針を折曲げるための最大力即ち「ピーク荷重」は
他のホチキス針を折曲げるためのピーク荷重より
は異なる時間に起こることになる。これは個々の
ホチキス針折曲げピーク荷重を時間に亘つて分布
させ、これによつて、ホチキス針を打込むのに要
する全体のピーク荷重を減少させる。 最初の部分354a,454aに続いて、カム
スロツト454の各々は中間部分454bを有
し、この中間部分は、カムスロツト354の対応
する中間部分354bと実質的に平行か或はこれ
よりもほんの僅かゆるやかに傾斜している。これ
は、ホチキス針202のほとんど又はすべて少な
くとも折曲げを開始しており、従つてそれらのピ
ーク荷重の要求を終えているまで要素230,2
40の下方部分をこれらの要求の上方部分よりも
もつと末端の方に前進させるような装置の状態を
維持する。 カムスロツト354,454の最終部分354
c,454cは、中間部分よりももつと幾分かゆ
るやかに末端の方向に傾斜しているのが良い。必
要とする力がピーク荷重よりも実質的に小さいと
き、ホチキス針202の最終圧縮中にカムホロワ
ーピン232がこれらの最終部分を通る。両カム
ホロワーピン232がそれらの走行端に達したと
き、カムホロワーピン232が両方ともそれらの
出発位置から同じ末端方向の距離移動しているよ
うに、カムスロツト部分354cの傾斜角度はカ
ムスロツト部分454cの傾斜角度と異なるのが
良い。これにより、ホチキス針の打込み行程中、
部材230,240はアンピル部品280の(垂
直)長手方向軸線に対して計画通り傾斜するが、
ホチキス針打込み行程は、部材230と240が
その軸線と実質的に並行になつて終わる。これは
ホチキス針のすべての圧縮を均一にする。 本発明を、平行な2列の外科用留め具を付ける
外科用留め具付け器具について図示したけれど
も、付けるべき留め具の数が多ければ多いほど、
本発明の利点は大きくなる。例えば、本発明は、
例えば、グリーンの米国特許第4402444号に示さ
れているように並行な4列の外科用留め具を付け
る器具の場合にはもつと有利である。 本発明は、第1図乃至第12図に示す型式の外
科用留め具付け装置の適用に限られないことを理
解すべきである。例えば、その装置は関節式シヤ
フト組立体を有しているが、本発明は、横方向に
撓む或は完全に剛性のシヤフト組立体のような他
の型式のシヤフト組立体をもつ器具に等しく適用
できる。同様に、上記の装置に金属製外科用ホチ
キス針202を採用しているが、その代わりに、
他の型式の外科用留め具、例えばグリーンの米国
特許第4402445号に示すもののような2部分形プ
ラスチツク留め具を使用しても良い。又、採用さ
れる金属製ホチキス針、プラスチツク留め具のい
ずれもが当業者において周知のように、生物学的
に不活性であつても良いし、或は生物学的に吸収
できるものが良い。
JP60504557A 1984-10-19 1985-09-30 留め具を漸進的に付ける外科用留め具付け装置 Granted JPS61501894A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/662,679 US4580712A (en) 1984-10-19 1984-10-19 Surgical fastener applying apparatus with progressive application of fastener
US662679 1996-06-13

Publications (2)

Publication Number Publication Date
JPS61501894A JPS61501894A (ja) 1986-09-04
JPH0436699B2 true JPH0436699B2 (ja) 1992-06-17

Family

ID=24658728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60504557A Granted JPS61501894A (ja) 1984-10-19 1985-09-30 留め具を漸進的に付ける外科用留め具付け装置

Country Status (10)

Country Link
US (1) US4580712A (ja)
EP (1) EP0198873B1 (ja)
JP (1) JPS61501894A (ja)
AT (1) ATE59276T1 (ja)
AU (1) AU569954B2 (ja)
BR (1) BR8507000A (ja)
CA (1) CA1236743A (ja)
DE (1) DE3581198D1 (ja)
GB (1) GB2183526B (ja)
WO (1) WO1986002253A1 (ja)

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GB2183526B (en) 1989-01-05
GB8615609D0 (en) 1986-07-30
EP0198873A1 (en) 1986-10-29
ATE59276T1 (de) 1991-01-15
DE3581198D1 (de) 1991-02-07
US4580712A (en) 1986-04-08
AU4532385A (en) 1986-04-24
BR8507000A (pt) 1987-01-06
CA1236743A (en) 1988-05-17
GB2183526A (en) 1987-06-10
AU569954B2 (en) 1988-02-25
EP0198873A4 (en) 1988-04-06
JPS61501894A (ja) 1986-09-04
EP0198873B1 (en) 1990-12-27
WO1986002253A1 (en) 1986-04-24

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