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JP2514087Y2 - 離脱式両端逆止弁付きバル―ン - Google Patents

離脱式両端逆止弁付きバル―ン

Info

Publication number
JP2514087Y2
JP2514087Y2 JP1990055025U JP5502590U JP2514087Y2 JP 2514087 Y2 JP2514087 Y2 JP 2514087Y2 JP 1990055025 U JP1990055025 U JP 1990055025U JP 5502590 U JP5502590 U JP 5502590U JP 2514087 Y2 JP2514087 Y2 JP 2514087Y2
Authority
JP
Japan
Prior art keywords
balloon
check valve
guide wire
detachable double
present
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
JP1990055025U
Other languages
English (en)
Other versions
JPH0413155U (ja
Inventor
幸三 牧田
徹 町田
Original Assignee
幸三 牧田
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 幸三 牧田 filed Critical 幸三 牧田
Priority to JP1990055025U priority Critical patent/JP2514087Y2/ja
Priority to EP91304716A priority patent/EP0458649A1/en
Priority to US07/705,411 priority patent/US5181921A/en
Publication of JPH0413155U publication Critical patent/JPH0413155U/ja
Application granted granted Critical
Publication of JP2514087Y2 publication Critical patent/JP2514087Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/12136—Balloons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
    • 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
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1054—Balloon catheters with special features or adapted for special applications having detachable or disposable balloons

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Reproductive Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Description

【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、離脱式両端逆止弁付きバルーンに関するも
のであり、更に詳しくは患部の血管を塞栓を用いて塞ぐ
ことにより血液の流れを阻止するための離脱式両端逆止
弁付きバルーンに関するものである。
［考案の背景］ 近年、血管性病変、癌の治療において責任血管を塞栓
物を用いて塞ぐことが行われるようになった。従来、こ
のような患部の血管塞栓物による封鎖は、カテーテル内
に塞栓物を導入し、これをワイヤーの先端で押進め、カ
テーテルを患部の直前まで持っていき、そこでカテーテ
ルからワイヤーで塞栓物を押し出すことにより封鎖する
如き方法が一般に行われている。
また別の方法では、ガイドワイヤーとカテーテルの先
端に塞栓物、すなわちバルーン（カテーテル接続側に逆
止弁を有する）を設置し、これを血管内を押し進めて行
き、封鎖すべき箇所に到達したところでバルーンを膨ら
ませて封鎖し、その後ガイドワイヤーとカテーテルを分
離することによりバルーンを設置することが行われてい
る。
しかしながら、これらの方法はバルーンを患部の所望
の位置へ導入する場合、血流を利用するため、血流の強
弱の流れにまかせるしか方法がなく、従ってバルーンを
所望の位置へ導入することが難しく、この操作には硬度
の熟練を要するという問題がある。
そこで、本考案者は、これらの問題点を改善するため
に、種々の検討を行った結果、前記バルーンを所望の場
所に容易に設置することができ、しかも位置決めが失敗
することのない優れた装置を見出した。
［考案の目的］ したがって本考案の目的は、管内の患部の所望の場所
に容易にバルーンを設置することができ、しかも設置に
失敗することのない離脱式両端逆止弁付きバルーンを提
供することにある。
［考案の構成］ 本考案の前記目的は、 （１） 一端にガイドワイヤー及びカテーテルの挿入口
を有し、他端にガイドワイヤーの出口を有する離脱式両
端逆止弁付きバルーンにおいて、前記の挿入口及び出口
にそれぞれ逆止弁を有することを特徴とする離脱式両端
逆止弁付きバルーン。
（２） 前記第１項記載のバルーンの中にＸ線により感
知しうる材料を存在させたことを特徴とする離脱式両端
逆止弁付きバルーンによってそれぞれ達成された。
以下、本考案の構成について具体的に説明すると、本
考案の離脱式両端逆止弁付きバルーンは、バルーンの両
端部にそれぞれ逆止弁を有しているものであり、これに
より該バルーンはガイドワイヤー及びカテーテルを一方
の端から通し、このうちガイドワイヤーを他方の端を貫
通して突き出して通される。この突き出したガイドワイ
ヤーの先端は自由に方向が変えられるので、枝分かれし
た血管の所望の血管にガイドワイヤーを導き、ガイドワ
イヤーに導かれたバルーンが所望の設置箇所に到達した
ところで、ガイドワイヤーの先端をバルーンのほぼ中央
部まで引き戻し、この状態でバルーンを膨らましてその
箇所を封鎖し、次いでカテーテル及びガイドワイヤーを
引き抜くことによりバルーンは設置される。
本考案に用いられる逆止弁は、その一例が第１図に示
されているが、この逆止弁は液が一方向には通過する
が、その逆方向には通過が阻止される構造を有するもの
であればよく、このような逆止弁の構造は周知である。
本考案で用いられるバルーンの材質は、特に限定され
るものではないが、例えばシリコーンゴムエラストマ
ー、ゴム等のゴム状物質が好ましい。
本考案で用いられるバルーンの中にはＸ線により感
知、即ち目視される材料を入れておくことができ、この
材料としては、金、白金、タングステン等の金属ないし
はこれらの合金が好ましい。
本考案に用いられるガイドワイヤーとしては、従来公
知の各種の材料又は構造を有するものが用いられる。こ
れらの中で特に好ましく用いられるガイドワイヤーは、
コイルスプリングと芯線とを組み合わせたもの又はコイ
ルスプリングからなるもの等が挙げられる。
これらを構成する材料としては、ステンレス線、ピア
ノ線、超弾性金属線、形状記憶合金線、クロム含有合
金、プラスチックス等が挙げられる。特に超弾性金属線
または形状記憶合金線は、この技術分野において通常用
いられているものでよい。
本考案に係るガイドワイヤーは、患部の血管、例えば
破綻し出血している血管を選択するのに使用される。
［本考案の作用］ 本考案の離脱式両端逆止弁付きバルーンは、バルーン
の両端部にそれぞれ逆止弁を有していることにより、該
バルーンはガイドワイヤー及びカテーテルを一方の端か
ら通し、このうちガイドワイヤーを他方の端を貫通して
突き出して通すことができ、この突き出して通されたガ
イドワイヤーの先端により所望の方向にバルーンを導く
ことができる。
以下更に図面を以て具体的に説明する。
［実施例］ 次に本考案を図面により更に具体的に説明するが、こ
れは本考案の実施態様の一つであって、本考案はこれに
限定されるものではない。
第１図は本考案の離脱式両端逆止弁付きバルーンを示
す断面図であり、第２図は、第１図の本考案の離脱式両
端逆止弁付きバルーンを膨らませた状態を示す断面図で
ある。また第３図は、本考案の離脱式両端逆止弁付きバ
ルーンにガイドワイヤーとカテーテルを設置した状態を
示す断面図である。
まず、第１図において、１はバルーンであり、６は逆
止弁であり、２は弁台を示す。３及び４は接着剤であ
り、５は弁カバーである。
即ちバルーン１は、その両端に逆止弁61、62を有し、
その端は接着剤３及び４により接着されており、その中
側は弁台２が弁カバーによって覆われている。そして第
１図に示されたバルーンに液を注入すると、第２図に示
される如く逆止弁61、62の作用により液は逆流しないで
バルーン内に内包されるので、膨張したままの状態を維
持することができる。
第３図は、バルーンの両端に設けられた逆止弁61、62
の両方をガイドワイヤー７が貫通して突き出た状態を示
しており、その後部にはカテーテル８が逆止弁61に接続
されている。
このガイドワイヤー７によりバルーン１は所望の箇所
に案内され、その後ガイドワイヤー７が引き抜かれ、液
が注入されて膨らんだ状態で、カテーテルを引き抜く。
［考案の効果］ 本考案の離脱式両端逆止弁付きバルーンは、管内の患
部の所望の場所に容易にバルーンを設置することがで
き、しかも設置に失敗することがないという優れた効果
を奏するものである。
【図面の簡単な説明】
第１図は、本考案の離脱式両端逆止弁付きバルーンを示
す断面図である。 第２図は、第１図の本考案の離脱式両端逆止弁付きバル
ーンを膨らませた状態を示す断面図である。また第３図
は、本考案の離脱式両端逆止弁付きバルーンにガイドワ
イヤーとカテーテルを設置した状態を示す断面図であ
る。 符号の説明 １……バルーン ２……弁台 ３、４……接着箇所 ５……弁カバー 61、62……逆止弁 ７……ガイドワイヤー ８……カテーテル

Claims (2)

    (57)【実用新案登録請求の範囲】
  1. 【請求項１】一端にガイドワイヤー及びカテーテルの挿
    入口を有し、他端にガイドワイヤーの出口を有する離脱
    式両端逆止弁付きバルーンにおいて、前記の挿入口及び
    出口にそれぞれ逆止弁を有することを特徴とする離脱式
    両端逆止弁付きバルーン。
  2. 【請求項２】請求項１記載のバルーンの中にＸ線により
    感知しうる材料を存在させたことを特徴とする離脱式両
    端逆止弁付きバルーン。
JP1990055025U 1990-05-25 1990-05-25 離脱式両端逆止弁付きバル―ン Expired - Lifetime JP2514087Y2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1990055025U JP2514087Y2 (ja) 1990-05-25 1990-05-25 離脱式両端逆止弁付きバル―ン
EP91304716A EP0458649A1 (en) 1990-05-25 1991-05-24 Detachable occluding balloon with its inserting catheter
US07/705,411 US5181921A (en) 1990-05-25 1991-05-24 Detachable balloon with two self-sealing valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990055025U JP2514087Y2 (ja) 1990-05-25 1990-05-25 離脱式両端逆止弁付きバル―ン

Publications (2)

Publication Number Publication Date
JPH0413155U JPH0413155U (ja) 1992-02-03
JP2514087Y2 true JP2514087Y2 (ja) 1996-10-16

Family

ID=12987130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990055025U Expired - Lifetime JP2514087Y2 (ja) 1990-05-25 1990-05-25 離脱式両端逆止弁付きバル―ン

Country Status (3)

Country Link
US (1) US5181921A (ja)
EP (1) EP0458649A1 (ja)
JP (1) JP2514087Y2 (ja)

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US5181921A (en) 1993-01-26
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