JPS61209647A - 血管吻合用の切開口拡開器 - Google Patents

血管吻合用の切開口拡開器

Info

Publication number
JPS61209647A
JPS61209647A JP60051352A JP5135285A JPS61209647A JP S61209647 A JPS61209647 A JP S61209647A JP 60051352 A JP60051352 A JP 60051352A JP 5135285 A JP5135285 A JP 5135285A JP S61209647 A JPS61209647 A JP S61209647A
Authority
JP
Japan
Prior art keywords
blood vessel
inner cylinder
outer cylinder
incision
cylinder
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.)
Granted
Application number
JP60051352A
Other languages
English (en)
Other versions
JPH0237773B2 (ja
Inventor
須广　久善
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP60051352A priority Critical patent/JPS61209647A/ja
Priority to US06/823,950 priority patent/US4654028A/en
Priority to DE19863607933 priority patent/DE3607933A1/de
Publication of JPS61209647A publication Critical patent/JPS61209647A/ja
Publication of JPH0237773B2 publication Critical patent/JPH0237773B2/ja
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/02—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors
    • A61B17/0218—Surgical instruments, devices or methods for holding wounds open, e.g. retractors; Tractors for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges

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)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Surgical Instruments (AREA)
  • Prostheses (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 （１）発明の目的 産業上の利用分野 本発明は手術時、特に血管吻合時に用いる血管グラフト
の切開口拡開器に関するものである。
従来の技術 従来、血管吻合手術に際しては、医師による指先とビン
セット、針及び糸により縫合する手技が主であった。唯
、血ｖ縫合器といわれる長手方向に血管を接合する器具
は知られているが、このような器具は血管側壁に設けた
切開口にバ・イパスを縫合するような血管吻合には用い
ることができない。
発明が解決しようとする問題点 静脈グラフトを用いて、冠動脈と吻合する冠動脈バイパ
ス手術のような場合、血管の吻合口が立体時に展開され
、良好な視野のもとで手術を行なうことが、手術後のグ
ラフトの開存性を向上させるため重要なことである。
しかるに、前記のようにピンセットを用いて、吻合口の
展開を試みても、静止状態で立体的に、良好な視野が得
られるように切開口を保持することは極めて難しい手術
となる。
従って、本発明は、血管吻合時にグラフトの切開口を十
分に拡開でき、安全で視野の十分とれる器具を提供しよ
うとするものである。
（２）発明の構成 問題点を解決するめだの手段 上記目的達成のため、本発明では血管内腔へ挿入可能な
細長い外筒と、この外筒とほぼ同じ長さで、外筒内へ摺
動可能に挿入された内筒と、この内筒の一端に取付けら
れ掌に入る程度の把持部と、基部が前記内筒の他端に固
定され、外筒内に収納可能で、且つ、前記内筒が摺動し
て外筒による圧縮が開放された時立体的に拡開するよう
附勢された複数本の線状部とから成る血管吻合用の切開
口拡開器とした。
作　　用 本発明の血管吻合用の切開口拡開器は、外筒が血管内腔
へ挿入可能な細長いものとしたので、冠動脈バイパス手
術のような場合、静脈片をグラフトとして、中枢側断端
より血管内腔へ挿入し、先端がグラフトの切開口に位置
するところで、把持部と外筒を利用して、内筒を摺動さ
せ、複数本の線状部が外筒外へ出るようにすることによ
り、線状部が拡開されて、切開口を外筒径より大きく拡
げることがてきるようになる。
複数本の線状部の拡開には、外筒と把持部をもって相対
的に摺動させ、線状部が外筒外へでるようにすればよく
、又血管内腔へ入れる場合、又術後引出す場合には、線
状部を外筒内に引込めれば血管に何んらの傷を与えるこ
となく、円滑に操作ができる。
実施例 図面は実施例を示すものである。第１図は本発明切開口
拡開器の斜視図で、第２図は内筒の線状部が突出した状
態を示す。
１は外筒、２は内筒である。この内筒２は外筒とほぼ同
じ程度の長さで、外筒内で摺動可能に挿入されている。
内筒２の一端には把持部３が取付けられ、この把持部は
掌に入る程度の大きさとなっている。内筒２の他端には
、基部４が内筒端に固定された複数本の線状部５が取付
けられ、これら線状部５は外筒内に収納可能であると共
に外筒外へ出たときには、それぞれ外方へ拡開されるよ
う附勢されている。勿論、外方へ拡がる附勢力は、血管
の切開口を手術し易い程度に拡開するものであって、血
管を破壊するようなものであってはならない。又線状部
５を先端に設けた丸み６は血管内腔を保護するものであ
る。
外筒１と内筒２とは摺動可能で、相対的に摺動され、内
筒先端の線状部が外筒から出たところで立体的に拡開さ
れるようになっている。外筒ｌには突出した係合部７が
あり、把持部３には係止部８があるので、両者を嵌合さ
せることにより、内筒又は外筒の回転を確実に押えて、
安定して使用できるようなっている。
冠動脈バイパス手術時の使用例を、第３図〜第５図で示
す。９は静脈グラフト、１０は切開口、１１は第１吻合
部、１２は側々吻合をした第２吻合部である。１３は冠
動脈、１４は血栓、１５は縫合用糸を示す。
第１図に示すように、本発明切開口拡開器を、静脈グラ
フト９の中枢側断端より挿入する。この際、内筒２は線
状部５が外筒１内に収納された状態である。先端が静脈
グラフト９の切開口ｌＯの位置に来た時、内筒２を摺動
させて、線状部５を外筒外へ出すことにより切開口１０
は大きく拡開される。その結果、静脈グラフト９は、端
部の第１吻合部１１及び側々吻合としての第２吻合部１
２とも縫合され、冠動脈１３の２つの血管において血栓
１４がそれぞれ発生している場合でも、１本の静脈グラ
フトによって容易にバイパス手術が可能となった。
本発明切開口拡開器を使用すると、切開口が十分に立体
的に拡開されるので、ピンセット、針、糸を利用して、
視野を十分とりながら、早急に確実に手術を行なうこと
ができるようになった。
（３）発明の効果 本発明の血省・吻合用の切開口拡開器を用いることによ
り、血管のような２〜６ｆｆｌＩ１１程度の細いグラフ
ト内腔に容易に確実に挿入でき、切開口の近辺において
、外筒と把持部を利用して内筒を摺動させ、線状部を突
出させることができる。外筒から出た線状部は複数本の
それぞれが立体的に拡開するよう附勢されているので、
切開口を良好に展開するので、吻合口縁に正確に針を通
す手術が容易且つ安全にできるようになった。従って、
冠動脈バイパス手術のように静脈グラフトを用いた側々
吻合も容易に行なえるようになり、外科手術に及ぼす効
果は誠に大きい。
手術後は再び内筒を外筒内へ引込めば、線状部も圧縮さ
れて収納される。
【図面の簡単な説明】
第１図は本発明血管吻合用の切開口拡開器の斜視図、第
２図は同斜視図で、線状部を突出ｙせた状態を示す。第
３図〜第５図は冠状動脈のバイパス手術時の使用例を示
す説明図である。 １・・・外筒　　２・・・内筒　　３・・・把持部４・
・・基部　　５・・・線状部　　６・・・丸み７・・・
係合部　　８・・・係止部 代理人　　弁理士　　大　島　−公 第３図 第５図

Claims (3)

    【特許請求の範囲】
  1. （１）血管内腔へ挿入可能な細長い外筒と、この外筒と
    ほぼ同じ長さで、外筒内へ摺動可能に挿入された内筒と
    、この内筒の一端に取付けられ掌に入る程度の把持部と
    、基部が前記内筒の他端に固定され、外筒内に収納可能
    で、且つ、前記内筒が摺動して外筒による圧縮が開放さ
    れた時立体的に拡開するよう附勢された複数本の線状部
    とから成る血管吻合用の切開口拡開器。
  2. （２）内筒の一端に取付けられた把持部として、外筒の
    端部に設けた係合部と嵌合する係止部を有する把持部を
    用いた特許請求の範囲第１項記載の血管吻合用の切開口
    拡開器。
  3. （３）内筒の他端に設けた複数本の線状部が、基部を内
    筒他端に固定すると共に３本の線状自由端部が３方に拡
    がるよう附勢され且つ先端に保護用丸みを設けたもので
    ある特許請求の範囲第１項記載の血管吻合用の切開口拡
    開器。
JP60051352A 1985-03-14 1985-03-14 血管吻合用の切開口拡開器 Granted JPS61209647A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP60051352A JPS61209647A (ja) 1985-03-14 1985-03-14 血管吻合用の切開口拡開器
US06/823,950 US4654028A (en) 1985-03-14 1986-01-29 Incision opening expansion holder for inosculation
DE19863607933 DE3607933A1 (de) 1985-03-14 1986-03-11 Dehnungshalter fuer schnittoeffnungen zum gebrauch bei chirurgischen operationen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60051352A JPS61209647A (ja) 1985-03-14 1985-03-14 血管吻合用の切開口拡開器

Publications (2)

Publication Number Publication Date
JPS61209647A true JPS61209647A (ja) 1986-09-17
JPH0237773B2 JPH0237773B2 (ja) 1990-08-27

Family

ID=12884533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60051352A Granted JPS61209647A (ja) 1985-03-14 1985-03-14 血管吻合用の切開口拡開器

Country Status (3)

Country Link
US (1) US4654028A (ja)
JP (1) JPS61209647A (ja)
DE (1) DE3607933A1 (ja)

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US4654028A (en) 1987-03-31

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