JPH0425024B2 - - Google Patents

Info

Publication number
JPH0425024B2
JPH0425024B2 JP59237406A JP23740684A JPH0425024B2 JP H0425024 B2 JPH0425024 B2 JP H0425024B2 JP 59237406 A JP59237406 A JP 59237406A JP 23740684 A JP23740684 A JP 23740684A JP H0425024 B2 JPH0425024 B2 JP H0425024B2
Authority
JP
Japan
Prior art keywords
coil
guidewire
distal end
wire
flexible
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
JP59237406A
Other languages
English (en)
Other versions
JPS60168466A (ja
Inventor
Wilfred J Samson
Ronald G Williams
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.)
Abbott Cardiovascular Systems Inc
Original Assignee
Advanced Cardiovascular Systems Inc
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 Advanced Cardiovascular Systems Inc filed Critical Advanced Cardiovascular Systems Inc
Publication of JPS60168466A publication Critical patent/JPS60168466A/ja
Publication of JPH0425024B2 publication Critical patent/JPH0425024B2/ja
Granted legal-status Critical Current

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Classifications

    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M25/09016—Guide wires with mandrils
    • A61M25/09033—Guide wires with mandrils with fixed mandrils, e.g. mandrils fixed to tip; Tensionable wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22001—Angioplasty, e.g. PCTA
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09166—Guide wires having radio-opaque features
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09175—Guide wires having specific characteristics at the distal tip

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Description

【発明の詳細な説明】 本発明は、血管系統特に人間の心臓血管系内に
カテーテルを導入する際に用いるためのガイドワ
イヤに関する。
心臓血管系統の中へのカテーテルの挿入を容易
にするため、従来ガイドワイヤが提供されてき
た。このガイドワイヤの１つが、1983年７月13日
に提出された米国特許出願第513222号に開示され
ている。このようなガイドワイヤにあつては、非
常に細い導管特にこの導管の部分的に閉じられた
区分の中へこのガイドワイヤを導入することが困
難であることが判明した。それ故、心臓血管系の
中の細い導管の中へうまく導入しうる改良された
ガイドワイヤの必要がある。
本発明の一般的な目的は、血管系統特に人間の
心臓血管系内の細い導管の中へ導入しうるカテー
テル用のガイドワイヤを提供することである。
本発明のもう１つの目的は、高いトルク性能を
有するカテーテル用のガイドワイヤを提供するこ
とである。
本発明のもう１つの目的は、非常にフロツピー
な即ちばたばた動き易い可撓性のカテーテル用の
ガイドワイヤを提供することである。
本発明のもう１つの目的は、ガイドワイヤの遠
位端に種々の程度のフロツピー度即ち可撓性を設
けることのできるカテーテル用のガイドワイヤを
提供することである。
本発明の他の目的と特徴は、添付図面と組合せ
て以下に詳細に述べる好ましい実施態様の説明か
ら明らかとなるであろう。
カテーテルと共に用いるためのガイドワイヤ
は、0.008〜0.020インチ（0.2032〜0.508mm）の範
囲の直径をもつ近位部分と0.007インチ（0.1778
mm）未満の直径をもつ遠位部分とを有するステン
レス鋼製の可撓性で円筒形の細長い要素からな
る。細長い要素の永久変形を防ぐためステンレス
鋼製のコイルが細長い要素の遠位部分に固定さ
れ、実質的にラジオパクの即ち放射性不透性の材
料から形成された追加のコイルがステンレス鋼コ
イルに固定されている。
第１図と第２図に示す本発明によるガイドワイ
ヤ１１は、ステンレス鋼のような高い捩り強度を
有する適当な金属材料から形成された可撓性で円
筒形の細長い要素１２からなる。所望により、ス
テンレス鋼以外の他の材料、例えばある炭素鋼、
チタン及びベリリム銅等を利用しうることが理解
されるべきである。細長い円筒形要素は、ワイヤ
状で中空の円筒形要素の形でもよく、又ワイヤ状
でむくの円筒形コアの形でもよい。
細長い円筒形要素１２を形成するために利用す
るワイヤは、例えば20％クロムと10％ニツケルを
含有し最小引張強度が240KsiのNo.304ステンレス
鋼から適当な方法で形成されるのがよい。それ
は、0.0150ステンレス鋼ワイヤ材料を0.016材料
に引いて細くすることにより加工硬化されるのが
よい。ワイヤは、次に真直ぐにされ、所望の長さ
に切断される。その後、ワイヤが焼鈍され、焼鈍
の後芯なし研削されて第１図に示す可撓性の細長
い要素が得られる。
第１図に示すように、可撓性の細長い円筒形要
素１２は、0.008〜0.020インチ（0.2032〜0.508
mm）のような適当な直径好ましくは約0.016イン
チ（0.4mm）の直径を有する円筒形部分１２ａを
備えている。細長い要素１２は、円筒形部分１２
ａの一端に接続するテーパ付き部分１２ｂを備
え、テーパ付き部分１２ｂは、もう１つの円筒形
部分１２ｃに接続し、この円筒形部分１２ｃは、
0.005〜0.010インチ（0.127〜0.254mm）のような
適当な寸法好ましくは約0.008インチ（0.2032mm）
の太さを有する。円筒形部分１２ｃに接続するも
う１つのテーパ付き部分１２ｄが設けられてい
る。もう１つの円筒形部分１２ｅがテーパ付き部
分１２ｄに接続している。円筒形部分１２ｅは、
0.007インチ（0.1778mm）未満の適当な寸法例え
ば0.003インチ（0.0762mm）±0.0005インチ
（0.0127mm）の寸法を有する。
可撓性の細長い要素全体の長さは、150〜250cm
の範囲内の適当な長さでよいが、約175cmの長さ
であるのが好ましい。円筒形部分１２ｅは、２〜
６cmの範囲内の長さでよいが、約４cmの長さをも
つのが好ましい。円筒形部分１２ｃは、25〜30cm
の範囲内の長さをもつことができるが、約26.5cm
の長さを有するのが好ましい。テーパ付き部分１
２ｄの長さは約1/2cmがよいが、テーパ付き部分
１２ｂの長さは約１cmとするのがよい。
細長い可撓性要素１２の近位端は、冠状導管を
通してガイドワイヤを移動させるのを容易にする
ように適当な材料で被覆されている。例えば、円
筒形部分１２ａの相当部分を適当な厚さ例えば
0.001インチ（0.0254mm）の厚さにテフロン被覆
１５を施すのがよい。
ステンレス鋼のような適当な材料の細長いコイ
ル１３が、第２図に示すように半田１４の使用の
ような適当な手段により、円筒形要素１２の遠位
端に固定されている。図示のように、コイル１３
は円筒形部分１２ｃの上に延び、可撓性要素１２
と細長いコイル１３との間の半田結合部１４が、
テーパ付き部分１２ｂの近くに形成されている。
コイル１３は、約0.003インチ（0.0762mm）の
直径をもつステンレス鋼ワイヤから形成され、コ
イルの外径が約0.017インチ（0.4318mm）となる
ように巻かれている。コイル１３は、きつくぎつ
しり詰め込まれるような方法で、即ち換言すれば
“ボトム アウト（bottomed out）”されるよう
な方法で巻かれる。半田１４は、コイルの間の隙
間を満すがコイルの外径を著しくは増大させない
ような量でコイルに施される。コイル１３は、細
長い要素１２の遠位端の方へ円筒形部分１２ｅに
隣接する領域へ延びている。
実質的にＸ線を透さない材料から形成されたも
う１つの細長いコイル１６が設けられている。こ
のコイル１６は、少くとも13ｇｍ／cm3の密度を有
する材料から形成されるべきである。この要件に
適合する適当な材料には、金、タンタル、タング
ステン、プラチナ、イリジウム、レニウム及びこ
れらの材料の合金が含まれる。細長いコイル１６
用に利用されるワイヤは、プラチナ合金から形成
され、適当な寸法を有するが、ステンレス鋼コイ
ル１３の寸法に実質的に等しい寸法を有するのが
好ましい。この理由で、ワイヤは、0.003インチ
（0.0762mm）の直径を有し、コイルの外径が約
0.017インチ（0.4318mm）となるように巻かれる。
細長いプラチナコイル１６の１つおきの巻きが細
長いステンレス鋼コイル１３の１つおきの巻きの
間に配置されるような方法で、第２図に詳細に示
すように、コイル１６の一端がコイル１３の遠位
端の中へねじ込まれている。このねじ込み結合
は、第２図に断面斜線で示してあり、ステンレス
鋼コイル１３の断面斜線が１つの方向に延び、プ
ラチナコイル１６の断面斜線は前記１つの方向か
ら90度変位した方向に延びている。プラチナコイ
ル１６に付加的な可撓性を与えるために、コイル
の巻きをぎつしり詰め即ち“ボトム アウト”す
るよりもむしろ適当な距離例えば0.005〜0.0015
インチ（0.127〜0.0381mm）だけ離間させる。別
態様として、２つのコイル１３と１６を一緒に突
き当てることができる。
0.003インチ（0.0762mm）の幅と0.001インチ
（0.0254mm）の厚さのような適当な寸法のタング
ステンのような適当な材料から形成された安全リ
ボン１７が、細長い円筒形要素１２の端からコイ
ル１６の最外端即ち遠位端へ延びている。安全リ
ボン１７の近位端と、ねじ込まれ又は一緒に突き
合せられたコイル１３と１６の２つの端部とは、
ろう付け１８のような適当な手段により細長い要
素１２と結合されて単一組立体を形成している。
半田結合部１４と同様に、ろう付け結合部１８
は、材料がコイル１６の間の隙間を満たすような
方法で形成される。ろう付け結合部１８が、安全
リボン１７の近位端を細長い要素１２の円筒形部
分１２ｅに固定している。
第２図に示すように、コイル１６は、要素１２
の遠位端を越えて適当な距離だけ、例えば１〜２
cmの長さ、好ましくは1.5cmだけ延びている。コ
イル１６の遠位端は、この遠位端に丸味を付ける
と共に安全リボン１７の遠位端を固定するための
適当な装置を備え、プラチナコイル１６の遠位端
とリボン１７の遠位端とに接着される金のような
適当な材料から形成された球又はプラグ１９から
成る。
第１図と第２図に示されているガイドワイヤの
製造と関連して利用される半田材料とろう付け材
料は、従来の種類のものである。例えば、半田
は、従来の銅、銀合金又は錫銀合金がよく、ろう
付け材料は、銀、銅、錫とニツケルの合金とする
のがよい。
前述のガイドワイヤは、当業者に周知の方法で
バルン型カテーテルの導入を容易にするため心臓
血管系内の導管を探り針で探るために利用しうる
非常に可撓性の遠位端を備えているのでフロツピ
ーワイヤ（floppy wire）として特徴づけること
ができる。ガイドワイヤの形状は、心臓血管系内
の導管に容易に従うことができる。従来の蛍光透
視鏡を用いて移動を観察することもできる。
第１図と第２図に示すガイドワイヤよりも僅か
に小さい可撓性即ちフロツピー度（floppiness）
をもつ本発明によるもう１つのガイドワイヤが第
３図に示されている。第３図に示すガイドワイヤ
２６は、第１図と第２図に関連して上述した形式
の細長い円筒形要素１２からなる。同様に、ステ
ンレス鋼製のコイル１３が、第１図と第２図の実
施態様において説明した方法で利用され、半田１
４により可撓性の細長い要素１２に結合される。
コイル１６を形成した方法と同じ方法でプラチナ
製コイル２７が設けられるが、このコイル２７
は、コイル１６よりも長さが短かく、細長い可撓
性要素１２の遠位端まで延びているにすぎない。
コイル２７は、コイル１３の遠位端の中へねじ込
まれ、ろう付け１８により細長い要素１２に接着
されている。コイル２７は、可撓性の細長い要素
１２の端を超えて延びていないので、第１図と第
２図の実施態様において設けられた安全ワイヤ即
ち安全リボン１７を設けることは必要でない。金
のような適当な材料から形成されたプラグ又は球
２８が、コイル１７の遠位端に形成され、可撓性
の細長い要素１２の遠位端に結合されている。前
の実施態様のように、追加の可撓性を与えるめ
に、コイル２７の巻きを外端で例えば0.0005〜
0.0015インチ（0.0127〜0.0381mm）だけ離間させ
るのがよい。
前述の説明から、心臓血管系内で遭遇する種々
のタイプの導管特に部分的に閉塞した導管を通り
抜ける種々の異なる性能のガイドワイヤを提供し
うるように、種々の変化する程度の可撓性をもつ
ガイドワイヤが提供されたことがわかる。この種
のガイドワイヤは、この閉塞部を通り抜けること
を容易にし、当業者に周知の方法でバルン型カテ
ーテルの導入を容易にする。設けられたコイル
は、ガイドワイヤの永久変形を妨止する。
【図面の簡単な説明】
第１図は、本発明によるガイドワイヤの構成と
関連して用いられる芯ワイヤの側面図である。第
２図は、本発明によるガイドワイヤの部分断面側
面図で、フロツピーな遠位端を備えている。第３
図は、本発明によるガイドワイヤのもう１つの実
施態様の一部断面の側面図で、フロツピー度がよ
り少ない遠位端を有する。 １１，２６……ガイドワイヤ、１２……可撓性
の細長い円筒形要素、１３……第１コイル、１
６，２７……第２コイル、１９，２８……丸味の
ある構造体、１７……安全ワイヤ。

Claims (1)

  1. 【特許請求の範囲】 １ ガイドワイヤにおいて： 高い捩り能力を有する金属材料から形成され、
    0.008〜0.020インチ（0.2032〜0.508mm）の範囲内
    の直径をもつ近位部分0.007インチ（0.1778mm）
    より小さい直径をもつ遠位部分とを有する細長い
    可撓性の円筒形要素と； 金属材料から形成され且つ前記遠位部分に固定
    された第１コイルと； 第１コイルの構成材料と異なり且つ実質的に放
    射線を透過しない材料から形成され、第１コイル
    の遠位端に固定された第２コイルと； 第２コイルの遠位端に固定された丸味のある構
    造体を有する装置と； を具備するガイドワイヤ。 ２ 第２コイルの外端が、第２コイルの外端に固
    定され且つ可撓性の細長い円筒形要素にも固定さ
    れた安全ワイヤと共に、可撓性の細長い円筒形要
    素の遠位端を越えて延びている特許請求の範囲第
    １項に記載のガイドワイヤ。 ３ 第２コイルの外端に丸味のある構造体を形成
    する前記装置が、可撓性の細長い円筒形要素の遠
    位端に接着されている特許請求の範囲第２項に記
    載のガイドワイヤ。 ４ 前記第１コイルと第２コイルとの少くとも一
    部が有する個々の互違いの巻きが相互の間に配置
    されるように、前記第１コイルと第２コイルとが
    一緒にねじ込まれている特許請求の範囲第１項に
    記載のガイドワイヤ。 ５ 一緒にねじ込まれている部分が、一緒にろう
    付けされ且つ可撓性の細長い要素にろう付けされ
    ている特許請求の範囲第４項に記載のガイドワイ
    ヤ。 ６ 第２コイルが、安全ワイヤと共に可撓性の細
    長い要素の遠位端を越えて延びており、安全ワイ
    ヤの一端が可撓性の細長い要素にろう付けされて
    おり、安全ワイヤの他端が、第２コイルの外端に
    丸味のある構造体を形成する装置に接着されてい
    る特許請求の範囲第１項に記載のガイドワイヤ。 ７ 第１コイルがステンレス鋼から形成され、第
    ２コイルがプラチナ合金から形成されている特許
    請求の範囲第１項に記載のガイドワイヤ。
JP59237406A 1983-11-10 1984-11-10 カテ−テル用のガイドワイヤ Granted JPS60168466A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US550917 1983-11-10
US06/550,917 US4538622A (en) 1983-11-10 1983-11-10 Guide wire for catheters

Publications (2)

Publication Number Publication Date
JPS60168466A JPS60168466A (ja) 1985-08-31
JPH0425024B2 true JPH0425024B2 (ja) 1992-04-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP59237406A Granted JPS60168466A (ja) 1983-11-10 1984-11-10 カテ−テル用のガイドワイヤ

Country Status (5)

Country Link
US (1) US4538622A (ja)
EP (1) EP0142330B1 (ja)
JP (1) JPS60168466A (ja)
CA (1) CA1224104A (ja)
DE (1) DE3475874D1 (ja)

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EP0142330A2 (en) 1985-05-22
JPS60168466A (ja) 1985-08-31
EP0142330B1 (en) 1989-01-04
EP0142330A3 (en) 1986-07-23
CA1224104A (en) 1987-07-14
US4538622A (en) 1985-09-03
DE3475874D1 (en) 1989-02-09

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