JPH0724112Y2 - Guide wire with embolic coil - Google Patents
Guide wire with embolic coilInfo
- Publication number
- JPH0724112Y2 JPH0724112Y2 JP2067489U JP2067489U JPH0724112Y2 JP H0724112 Y2 JPH0724112 Y2 JP H0724112Y2 JP 2067489 U JP2067489 U JP 2067489U JP 2067489 U JP2067489 U JP 2067489U JP H0724112 Y2 JPH0724112 Y2 JP H0724112Y2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- embolus
- guide wire
- present
- embolic coil
- 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
Links
- 230000003073 embolic effect Effects 0.000 title claims description 9
- 208000005189 Embolism Diseases 0.000 claims description 39
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 description 10
- 210000004204 blood vessel Anatomy 0.000 description 9
- 238000000576 coating method Methods 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 201000011510 cancer Diseases 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 102000003990 Urokinase-type plasminogen activator Human genes 0.000 description 1
- 108090000435 Urokinase-type plasminogen activator Proteins 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000002965 anti-thrombogenic effect Effects 0.000 description 1
- 239000003146 anticoagulant agent Substances 0.000 description 1
- 229960004676 antithrombotic agent Drugs 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000010102 embolization Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229960005356 urokinase Drugs 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、塞栓コイル付きガイドワイヤーに関するもの
であり、更に詳しくは血管内の患部の手前を塞栓を用い
て塞ぐことにより血液の流れを阻止するための塞栓コイ
ル付きガイドワイヤーに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a guide wire with an embolic coil, and more specifically, blocking the blood flow by embolizing the front part of an affected area in a blood vessel with an embolus. The present invention relates to a guide wire with an embolic coil for carrying out.
［考案の背景］ 近年、血管の患部、例えば癌等ができている場合、この
癌は血管から栄養分を補給し、段々大きくなっていくの
で、これを防ぐために、血管内の癌の手前を塞栓を用い
て塞ぐことが行われるようになった。[Background of the Invention] In recent years, when a diseased part of a blood vessel, such as a cancer, is formed, this cancer replenishes nutrients from the blood vessel and gradually grows in size. It is now used to close.
従来、このような血管内の患部の塞栓による封鎖は、カ
テーテル内に塞栓を導入し、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。Conventionally, such blockage by embolization of the affected part in the blood vessel introduces an embolus into the catheter, pushes it forward with the tip of the wire, brings the catheter to just before the affected part, and pushes the embolus with the wire from the catheter there. The method of blocking by this is generally performed.
しかしながら、この方法はカテーテルを患部の所望の位
置へ導入することが難しく、この操作には硬度の熟練を
要するという問題点があり、また位置決めが失敗した時
には、その塞栓を回収することができないという欠点が
ある。However, this method has a problem that it is difficult to introduce the catheter to a desired position of the affected area, and this operation requires a skill of hardness, and when the positioning fails, the embolus cannot be recovered. There are drawbacks.
そこで、本考案者は、これらの問題点ないし欠点を改善
するために、種々の検討を行った結果、前記塞栓を所望
の場所に容易に設置することができ、しかも位置決めが
失敗し、塞栓を置きざりにするということのない優れた
装置を見出した。Therefore, the present inventor has conducted various studies in order to improve these problems and drawbacks, and as a result, the embolus can be easily installed at a desired place, and furthermore, the positioning fails and the embolus is removed. We have found an excellent device that can be left alone.
［考案の目的］ したがって本考案の目的は、血管内の患部の所望の場所
に容易に塞栓を設置することができ、しかも設置に失敗
することのない塞栓付きガイドワイヤーを提供すること
にある。[Object of the Invention] Therefore, an object of the present invention is to provide a guidewire with an embolus that can easily install an embolus at a desired location in an affected area in a blood vessel and does not fail in installation.
［考案の構成］ 本考案の前記目的は、 （１）内部に芯線を有するコイル状ワイヤーの先端部内
に径小のコイル状ワイヤーの後端部が挿入嵌合され、か
つ固定されていると共に前記径小のコイル状ワイヤーの
先端部には、塞栓が摺動可能に被さって嵌合され、更に
該塞栓の先端部内で前記芯線の先端と弱く固定している
ことを特徴とする塞栓コイル付きガイドワイヤー。[Construction of the Invention] The object of the present invention is: (1) The rear end of a coiled wire having a small diameter is inserted and fitted into the tip of the coiled wire having a core wire inside, and is fixed. An embolus coil guide characterized in that an embolus is slidably fitted on the distal end portion of the coiled wire having a small diameter, and is further weakly fixed to the distal end of the core wire within the distal end portion of the embolus. wire.
（２）請求項１記載の塞栓は周囲に多数の糸状体を有す
ることを特徴とする塞栓コイル付きガイドワイヤー。(2) A guide wire with an embolic coil, wherein the embolus according to claim 1 has a large number of filaments around it.
（３）請求項１記載のコイル状ワイヤーの芯線が形状記
憶合金であることを特徴とする塞栓コイル付きガイドワ
イヤーによってそれぞれ達成される。(3) The core wire of the coiled wire according to the first aspect is a guide wire with an embolic coil, wherein the core wire is a shape memory alloy.
以下、本考案の構成について具体的に説明すると、本考
案の塞栓付きガイドワイヤーは、その先端部に塞栓を有
し、該塞栓は摺動可能に設けられている。即ち、ガイド
ワイヤーと塞栓とは、これらの径より小さいコイル状ワ
イヤーを同心円状に嵌合している。このうちガイドワイ
ヤーと嵌合している方は固定され、塞栓部は固定されて
いないにで、摺動可能である。この塞栓の径は、ガイド
ワイヤーと同径であっても大小いづれであってもよい
が、好ましくは同径がよい。The configuration of the present invention will be described in detail below. The embolus-equipped guide wire of the present invention has an embolus at its distal end, and the embolus is slidably provided. That is, the guide wire and the embolus are concentrically fitted with coiled wires smaller than these diameters. Of these, the one fitted with the guide wire is fixed, and the embolus portion is not fixed and can slide. The embolus may have the same diameter as the guide wire or may have a larger or smaller diameter, but preferably the same diameter.
本考案で用いられる塞栓の材質は、特に限定されるもの
ではなく、後述のガイドワイヤーの材質と同種のものが
用いられる。The material of the embolus used in the present invention is not particularly limited, and the same material as the material of the guide wire described later is used.
この塞栓はまたガイドワイヤー内部を貫通している芯線
と結合しており、この芯線を引くことによりガイドワイ
ヤーと塞栓との間隔がちじまり、更に強く引くことによ
り、塞栓が脱着する。この結合には、銀ロー等のこの技
術分野において通常用いられる蝋材が用いられる。This embolus is also connected to a core wire penetrating the inside of the guide wire. By pulling this core wire, the gap between the guide wire and the embolus is narrowed, and by further pulling strongly, the embolus is detached. For this connection, a wax material usually used in this technical field such as silver brazing is used.
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。As the guide wire used in the present invention, those having various conventionally known materials or structures are used. Among these, the guide wire particularly preferably used includes a combination of a coil spring and a core wire, or a coil spring.
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。As the material constituting these, stainless steel wire, piano wire, super elastic metal wire, shape memory alloy wire, chromium-containing alloy,
Examples thereof include plastics. In particular, the superelastic metal wire or the shape memory alloy wire may be the one usually used in this technical field.
ガイドワイヤーの直径は使用目的にもよるが、通常0.3m
m〜0.7mmの直径を有するものが用いられるが、これに限
定されるものではない。The diameter of the guide wire depends on the purpose of use, but is usually 0.3 m
Those having a diameter of m to 0.7 mm are used, but are not limited thereto.
本考案に係るガイドワイヤーは、その一部又は全部に被
覆を設けることがでる。被覆材としては、ポリエチレ
ン、ポリ塩化ビニル、ポリプロピレン、ポリアミド、ポ
リウレタン、弗素樹脂、シリコーン樹脂等が挙げられ
る。The guide wire according to the present invention can be provided with a coating on a part or all of the guide wire. Examples of the coating material include polyethylene, polyvinyl chloride, polypropylene, polyamide, polyurethane, fluorine resin, silicone resin and the like.
またこれらの被覆には抗血栓剤を加えることができ、例
えばヘパリン、ウロキナーゼ等がよい。An antithrombotic agent can be added to these coatings, and heparin, urokinase and the like are preferable.
更に被覆としてヒドロキシメタクリレート−スチレン共
重合体等の抗血栓材料を用いることもできる。Further, an antithrombogenic material such as hydroxymethacrylate-styrene copolymer can be used as the coating.
この他所望によりＸ線造影剤、例えばBa、Ｗ、Bi、Pb等
の金属塩（例えば硫酸塩、炭酸塩等）を添加することも
できる。In addition, if desired, an X-ray contrast agent, for example, a metal salt of Ba, W, Bi, Pb or the like (for example, sulfate, carbonate, etc.) can be added.
本考案に係るガイドワイヤーは、血管ないの患部、例え
ば癌等のある血管を封鎖するのに使用される。The guide wire according to the present invention is used to seal an affected area without a blood vessel, for example, a blood vessel having a cancer or the like.
［本考案の作用］ 本考案における塞栓付きガイドワイヤーは、ガイドワイ
ヤーの元の部分を引くことにより、先端部にある塞栓と
ワイヤーとの結合部に張力が生じ、更に強く引くとその
引っ張り力に抗して塞栓が芯線から脱着する。[Operation of the present invention] In the guide wire with embolus in the present invention, when the original portion of the guide wire is pulled, tension is generated at the connecting portion between the embolus and the wire at the distal end. Against this, the embolus is detached from the core wire.
以下更に図面を以て具体的に説明する。Hereinafter, a detailed description will be given with reference to the drawings.
［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。EXAMPLES Next, the present invention will be described in more detail with reference to the drawings, but this is one of the embodiments of the present invention, and the present invention is not limited thereto.
第１図は本考案の塞栓付きガイドワイヤーを示す断面図
であり、ガイドワイヤー１は、先端部に塞栓２を有して
おり、後部には操作部７を有している。FIG. 1 is a cross-sectional view showing a guide wire with an embolus according to the present invention. The guide wire 1 has an embolus 2 at its tip and an operating portion 7 at its rear.
またガイドワイヤー１の先端部と塞栓２の内部に径小の
コイル状ワイヤー３が挿入されて嵌合されることにより
接続されており、さらに該径小のコイル状ワイヤー３と
ガイドワイヤー１の先端部とはロー材51により接続され
ている。また塞栓２と前記径小のコイル状ワイヤー３と
の嵌合部は、摺動可能に嵌合している。Further, the distal end portion of the guide wire 1 and the embolus 2 are connected by inserting and fitting the coiled wire 3 having a small diameter, and the coiled wire 3 having a small diameter and the tip of the guide wire 1 are further connected. The parts are connected by a brazing material 51. The fitting portion between the embolus 2 and the coiled wire 3 having the small diameter is slidably fitted.
このガイドワイヤーの内部にはテーパ部を有する芯線４
が貫通しており、該テーパ部の先端が塞栓２の先端部に
プラズマ溶接によって弱く結合している。この結合は強
い力で引っ張ることにより簡単に取れる。そして芯線４
の後部は、操作部７と接続している。A core wire 4 having a tapered portion inside the guide wire
Through, and the tip of the tapered portion is weakly coupled to the tip of the embolus 2 by plasma welding. This bond can be easily obtained by pulling with a strong force. And the core wire 4
The rear part is connected to the operation part 7.
本考案のガイドワイヤーは、通常の方法で所望の患部へ
挿入した後、操作部７の柄を強く引くことにより塞栓２
が手前に引き寄せられガイドワイヤーの先端部と密着す
る。更に芯線４を引っ張ると塞栓２と芯線４の先端部が
取れて、そこに塞栓が放置される。The guide wire of the present invention is inserted into a desired affected area by a usual method and then the handle 2 of the operating portion 7 is pulled strongly to embolize the guide wire 2.
Is drawn toward you and comes into close contact with the tip of the guide wire. When the core wire 4 is further pulled, the embolus 2 and the tip of the core wire 4 are removed, and the embolus is left there.
第２図は、本考案の他の実施態様を示す塞栓の断面図で
ある。塞栓２の周囲表面には天然又は合成の糸８が設け
られている。この糸８は血管の封止を促進する。FIG. 2 is a sectional view of an embolus showing another embodiment of the present invention. A natural or synthetic thread 8 is provided on the peripheral surface of the embolus 2. This thread 8 promotes the sealing of blood vessels.
［考案の効果］ 本考案の塞栓付きガイドワイヤーは、血管内の患部の所
望の場所に容易に塞栓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。[Effects of the Invention] The guidewire with embolus of the present invention has an excellent effect that an embolus can be easily installed at a desired place in an affected area in a blood vessel and the installation will not fail. .
第１図は、本考案の塞栓付きガイドワイヤーを示す断面
図である。 第２図は、本考案の他の実施態様を示す塞栓の断面図で
ある。 符号の説明 １……ガイドワイヤー ２……塞栓 ３……径小コイル状ワイヤー ４……芯線 ５、51、６……蝋材 ７……操作部FIG. 1 is a sectional view showing an embolic guide wire according to the present invention. FIG. 2 is a sectional view of an embolus showing another embodiment of the present invention. Explanation of reference numerals 1 ... Guide wire 2 ... Embolism 3 ... Small diameter coiled wire 4 ... Core wire 5, 51, 6 ... Wax material 7 ... Operating part
Claims (3)
端部内に径小のコイル状ワイヤーの後端部が挿入嵌合さ
れ、かつ固定されていると共に前記径小のコイル状ワイ
ヤーの先端部には、塞栓が摺動可能に被さって嵌合さ
れ、更に該塞栓の先端部内で前記芯線の先端と弱く固定
していることを特徴とする塞栓コイル付きガイドワイヤ
ー。1. A rear end of a coiled wire having a small diameter is inserted and fitted into a front end of a coiled wire having a core wire inside and is fixed to the front end of the coiled wire having a small diameter. Is a guide wire with an embolic coil, in which the emboli is slidably fitted and fitted, and further, is weakly fixed to the tip of the core wire in the tip of the emboli.
を有することを特徴とする塞栓コイル付きガイドワイヤ
ー。2. A guide wire with an embolic coil, wherein the embolus according to claim 1 has a large number of filaments around its circumference.
形状記憶合金であることを特徴とする塞栓コイル付きガ
イドワイヤー。3. A guide wire with an embolic coil, wherein the core wire of the coiled wire according to claim 1 is a shape memory alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067489U JPH0724112Y2 (en) | 1989-02-23 | 1989-02-23 | Guide wire with embolic coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067489U JPH0724112Y2 (en) | 1989-02-23 | 1989-02-23 | Guide wire with embolic coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02111452U JPH02111452U (en) | 1990-09-06 |
| JPH0724112Y2 true JPH0724112Y2 (en) | 1995-06-05 |
Family
ID=31237245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2067489U Expired - Lifetime JPH0724112Y2 (en) | 1989-02-23 | 1989-02-23 | Guide wire with embolic coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724112Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7182735B2 (en) * | 2003-02-26 | 2007-02-27 | Scimed Life Systems, Inc. | Elongated intracorporal medical device |
-
1989
- 1989-02-23 JP JP2067489U patent/JPH0724112Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02111452U (en) | 1990-09-06 |
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