JPH042074B2 - - Google Patents
Info
- Publication number
- JPH042074B2 JPH042074B2 JP63261458A JP26145888A JPH042074B2 JP H042074 B2 JPH042074 B2 JP H042074B2 JP 63261458 A JP63261458 A JP 63261458A JP 26145888 A JP26145888 A JP 26145888A JP H042074 B2 JPH042074 B2 JP H042074B2
- Authority
- JP
- Japan
- Prior art keywords
- connector
- catheter
- wire
- guide wire
- medical
- 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
- 239000007788 liquid Substances 0.000 claims description 2
- 210000004204 blood vessel Anatomy 0.000 description 16
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 229940079593 drug Drugs 0.000 description 6
- 239000003814 drug Substances 0.000 description 6
- 239000002872 contrast media Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229910010380 TiNi Inorganic materials 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920003169 water-soluble polymer Polymers 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000003073 embolic effect Effects 0.000 description 2
- UPBDXRPQPOWRKR-UHFFFAOYSA-N furan-2,5-dione;methoxyethene Chemical compound COC=C.O=C1OC(=O)C=C1 UPBDXRPQPOWRKR-UHFFFAOYSA-N 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008155 medical solution Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は血管内の患部の治療又は検査において
用いられる血管内導入用カテーテルを案内するた
めの医療用ガイドワイヤ及びこれを備えたカテー
テルに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a medical guidewire for guiding an intravascular introduction catheter used in treatment or examination of an affected area within a blood vessel, and a catheter equipped with the same.
（従来の技術）
従来、血管内導入用カテーテルは血管内の患部
の治療、検査において、薬液、造影剤等の注入を
主たる目的として用いられている。ところで、従
来の血管内導入用カテーテルは合成樹脂からなる
可撓性チユーブ体の基端に単にハブを取着した構
造のものであるため、血管内導入用カテーテルの
血管内への導入に先立ち、予めガイドワイヤを血
管内に挿入し、ついで、これに血管内導入用カテ
ーテルを嵌挿させるようにして血管内導入用カテ
ーテルを血管の目的部位まで導入させていた。カ
テーテルを目的部位まで到達させたのちはガイド
ワイヤを抜去し、ついでカテーテルの基端から造
影剤、薬剤、塞栓物質等の注入がおこなわれる。(Prior Art) Conventionally, intravascular introduction catheters have been used primarily for the purpose of injecting medicinal solutions, contrast agents, etc. in treatment and examination of affected areas within blood vessels. By the way, since the conventional catheter for intravascular introduction has a structure in which a hub is simply attached to the proximal end of a flexible tube body made of synthetic resin, prior to introducing the catheter for intravascular introduction into the blood vessel, A guide wire is previously inserted into a blood vessel, and then an intravascular catheter is inserted into the guide wire to introduce the intravascular catheter to a target site in the blood vessel. After the catheter reaches the target site, the guide wire is removed, and a contrast agent, drug, embolic substance, etc. is injected from the proximal end of the catheter.
（発明が解決しようとする課題）
上述のように、従来、血管内導入用カテーテル
を介して薬液等を血管内に導入する場合、先に導
入したガイドワイヤが入つているため、これをカ
テーテルから引き抜いたのちでなければ、これら
の導入をおこなうことができなかつた。そのた
め、操作が繁雑となり長時間を要するなどの問題
があつた。(Problems to be Solved by the Invention) As mentioned above, conventionally, when introducing a drug solution into a blood vessel via an intravascular introduction catheter, the previously introduced guide wire is inserted, so it is difficult to remove this from the catheter. These could only be introduced after the withdrawal. As a result, there were problems such as the operation being complicated and requiring a long time.
したがつて、本発明は一旦、血管等に導入した
ガイドワイヤを、薬液等の導入時にいちいち抜去
する必要のないように構成した医療用ガイドワイ
ヤ及びこれを備えたカテーテルを提供することを
目的とする。 Therefore, an object of the present invention is to provide a medical guidewire and a catheter equipped with the same, which are configured so that it is not necessary to remove the guidewire once introduced into a blood vessel or the like when introducing a medical solution or the like. do.
（課題を解決するための手段）
本発明は上記課題を解決するため、ガイドワイ
ヤ本体の基端にカテーテルハブ及び薬液注入用シ
リンジと接続可能なコネクターを設けるという手
段を講じた。(Means for Solving the Problems) In order to solve the above problems, the present invention takes a measure of providing a connector connectable to a catheter hub and a drug solution injection syringe at the proximal end of the guide wire body.
すなわち、本発明は両端が開口した中空体から
なり、先端側にオス型ルアーテーパーが突接さ
れ、後端側にメス型ルアーテーパーが形成された
コネクターと、該コネクターの中空部内にて基端
部が固定され、それより先端部が上記オス型ルア
ーテーパーを通つて該コネクターから突出するワ
イヤ本体とを具備してなり、液体が該コネクター
の一端から他端へ通過可能となつてていることを
特徴とする医療用ガイドワイヤを提供するもので
ある。 That is, the present invention consists of a hollow body with both ends open, a male Luer taper is protruded on the distal end side, and a female Luer taper is formed on the rear end side. and a wire body whose distal end protrudes from the connector through the male luer taper so that liquid can pass from one end of the connector to the other. The present invention provides a medical guidewire characterized by the following.
ワイヤ本体としては超弾性線を用いることがで
きる。超弾性線は、その表面に合成樹脂を被覆し
たり、又、さらにその上に水溶性高分子材料を被
覆させてもよい。又、カテーテル本体の外表面に
も水溶性高分子材料を被覆し、血管内壁との摩擦
抵抗を小さくするようにしてもよい。さらにＸ線
不透過性物質をカテーテル本体又は超弾性線の被
覆樹脂層中に混入させＸ線造影により観察下でカ
テーテル導入操作をおこなえるようにしてもよ
い。 A superelastic wire can be used as the wire body. The surface of the superelastic wire may be coated with a synthetic resin, or may be further coated with a water-soluble polymer material. Furthermore, the outer surface of the catheter body may also be coated with a water-soluble polymer material to reduce the frictional resistance with the inner wall of the blood vessel. Furthermore, an X-ray opaque substance may be mixed into the catheter body or the coating resin layer of the superelastic wire so that the catheter introduction operation can be performed under observation using X-ray contrast.
なお、本明細書において、超弾性線とは合金の
逆変態完了温度以上の温度下で応力負荷をおこな
うと見掛上、数％〜10％程度の塑性変形を起す
が、除荷と同時に完全に元に戻る合金線を意味
し、具体例としてはNi：50.5〜51.0at％のTiNi合
金が最も好ましいが、Ni：50.3〜52.0のTiNi合
金でも可能である。また、TiNi合金に第３元素
を一種もしくは数種添加した謂ゆるTiNiX系合
金等もある。 In this specification, the term superelastic wire is used to refer to a superelastic wire that apparently undergoes plastic deformation of several to 10% when stress is applied at a temperature higher than the reverse transformation completion temperature of the alloy, but completely deforms upon unloading. As a specific example, a TiNi alloy with Ni: 50.5 to 51.0 at% is most preferable, but a TiNi alloy with Ni: 50.3 to 52.0 is also possible. There are also so-called TiNiX alloys, which are TiNi alloys with one or more third elements added.
（作用）
本発明の医療用ガイドワイヤにおいてはオス型
ルアーテーパー及びメス型ルアーテーパーを備え
たコネクターにカテーテルのハブ及びシリンジを
それぞれ接続することができ、これによりガイド
ワイヤがカテーテル内に導入されたままの状態で
薬液、造影剤、塞栓物質等を血管等に注入するこ
とができる。(Function) In the medical guidewire of the present invention, the hub and syringe of the catheter can be connected to the connectors equipped with a male Luer taper and a female Luer taper, respectively, so that the guidewire can be introduced into the catheter. A drug solution, a contrast agent, an embolic substance, etc. can be injected into a blood vessel or the like in this state.
（実施例）
第１図は本発明の一実施例に係わる医療用ガイ
ドワイヤ１を血管内導入用カテーテル２との組合
せで示したもので、このガイドワイヤ１は両端が
開口した中空体からなるコネクター３と、基端部
がこのコネクター３に固定されたワイヤ本体４と
からなつている。(Embodiment) Fig. 1 shows a medical guidewire 1 according to an embodiment of the present invention in combination with a catheter 2 for intravascular introduction, and the guidewire 1 is made of a hollow body with both ends open. It consists of a connector 3 and a wire body 4 whose base end is fixed to the connector 3.
さらに詳述すると、コネクター３は先端側にオ
ス型ルアーテーパー５が突接され、後端側にメス
型ルアーテーパー６が形成されている。このコネ
クター３は例えばナイロン等の合成樹脂から成形
することができる。ワイヤ本体４の基端は第２図
に示す如くコネクター３の中空部の内壁面から中
心に向つて放射状に突出する複数の突起片３ａの
先端部に上り周りから保持されている。ワイヤ本
体４はこの基端固定部からコネクター３の中空部
を通り、オス型ルアーテーパー５より延出し、先
端（図示しない）はカテーテル本体の先端開口部
近傍で終つている。ワイヤ本体４は、例えば外径
0.6mm、長さ810mmのNi−Ti（原子比：Ni50.3
％）合金からなる超弾性線からなる。 More specifically, the connector 3 has a male luer taper 5 in contact with the tip end thereof, and a female luer taper 6 on the rear end side. This connector 3 can be molded from synthetic resin such as nylon. As shown in FIG. 2, the proximal end of the wire main body 4 is held from around the top of a plurality of protrusions 3a that protrude radially from the inner wall surface of the hollow portion of the connector 3 toward the center. The wire main body 4 passes through the hollow part of the connector 3 from this proximal end fixing part, extends from the male Luer taper 5, and ends at the distal end (not shown) near the distal opening of the catheter main body. The wire body 4 has an outer diameter, for example.
0.6mm, length 810mm Ni-Ti (atomic ratio: Ni50.3
%) consists of superelastic wire made of alloy.
このワイヤ本体４は例えば特開昭61−45775号
公報に開示されているのと同様の方法によりウレ
タン樹脂で被覆し、表面改質を図るようにしても
よい。さらにその外表面を水溶性高分子、例えば
ポリビニルピロリドン、メチルビニルエーテル無
水マレイン酸ナトリウム、ポリアクリルアミド加
水分解物、アルギン酸ナトリウム、ポリビニルス
ルホン酸ソーダ、メチルビニルエーテル無水マレ
イン酸のアンモニウム塩、ポリアクリルアミド四
級化物等で被覆し、水又は水性溶液で濡らすこと
により潤滑性をもたせるようにしてもよい。 The wire main body 4 may be coated with a urethane resin by a method similar to that disclosed in JP-A-61-45775 for surface modification. Furthermore, the outer surface is coated with a water-soluble polymer such as polyvinylpyrrolidone, sodium methylvinylether maleic anhydride, polyacrylamide hydrolyzate, sodium alginate, sodium polyvinylsulfonate, ammonium salt of methylvinyl ether maleic anhydride, quaternized polyacrylamide, etc. The material may be coated with water and wetted with water or an aqueous solution to provide lubricity.
ワイヤ本体４の先端部は導入すべき血管の形状
に合わせて若干折曲（又は弯曲）させたものであ
つてもよい。ワイヤ本体４にはその被覆樹脂等を
介してＸ線不透過性物質を混入し、Ｘ線造影装置
等を利用してカテーテル本体１の血管内への導入
をより円滑におこなうようにしてもよい。 The distal end of the wire main body 4 may be slightly bent (or curved) to match the shape of the blood vessel to be introduced. An X-ray opaque substance may be mixed into the wire body 4 through its coating resin, etc., so that the catheter body 1 can be introduced into the blood vessel more smoothly using an X-ray contrast device or the like. .
上述の如き構成からなる本発明の医療用ガイド
ワイヤ１を血管内に導入する場合、まず、第３図
に示す如くワイヤ本体４を血管内導入用カテーテ
ル２のハブ２ａから導入し、オス型ルアーテーパ
ー５がカテーテル２のハブ２ａ基端のメス型ルア
ーテーパー内に挿入するようにしてカテーテル２
と合体させ（第１図参照）、その状態で血管内の
目的部位にガイドワイヤ１をカテーテル２ととも
に導入させる。ついで、ガイドワイヤ１のコネク
ター３のメス型ルアーテーパー６にシリンジ（図
示しない）を挿入し薬液、造影剤等の注入をおこ
なうことができる。即ち、薬液等はコネクター３
の中空部（突起片３ａ間を空〓３ｂを含めて）を
通り、さらにカテーテル２内の空〓部２ｂを通つ
て血管内の目的部位まで導入される。 When introducing the medical guide wire 1 of the present invention configured as described above into a blood vessel, first, as shown in FIG. 3, the wire main body 4 is introduced through the hub 2a of the intravascular introduction catheter 2, The catheter 2 is inserted so that the taper 5 is inserted into the female Luer taper at the proximal end of the hub 2a of the catheter 2.
(see FIG. 1), and in this state, the guide wire 1 and catheter 2 are introduced into the target site within the blood vessel. Next, a syringe (not shown) is inserted into the female Luer taper 6 of the connector 3 of the guide wire 1, and a drug solution, a contrast agent, etc. can be injected. In other words, chemicals etc. are connected to connector 3.
The catheter 2 is introduced through the hollow part (including the space 3b between the projections 3a) and further through the hollow part 2b in the catheter 2 to the target site in the blood vessel.
（発明の効果）
以上、詳述した如く、本発明の医療用ガイドワ
イヤによれば、ワイヤ本体の基端に、オス型ルア
ーテーパー及びメス型ルアーテーパーを備えたコ
ネクターが設けられ、これにカテーテルのハブ及
びシリンジをそれぞれ接続させるようにしたた
め、血管内にカテーテルを導入させたのち、この
ガイドワイヤをカテーテルから抜去することな
く、挿入させたままの状態で薬液、造影剤等を血
管内に注入することができる。(Effects of the Invention) As described above in detail, according to the medical guide wire of the present invention, a connector equipped with a male Luer taper and a female Luer taper is provided at the proximal end of the wire body, and a catheter is connected to the connector. Because the hub and syringe of the catheter are connected to each other, after the catheter is introduced into the blood vessel, drugs, contrast agents, etc. can be injected into the blood vessel without removing the guide wire from the catheter. can do.
第１図は本発明に係わる医療用ガイドワイヤの
主要部を示す断面図、第２図は第１図のガイドワ
イヤの−線に沿う断面図、第３図はガイドワ
イヤの使用方法を示す側面図である。
１……医療用ガイドワイヤ、２……カテーテ
ル、２ａ……ハブ、３……コネクター、３ａ……
突起片、３ｂ……空〓、４……ワイヤ本体、５…
…オス型ルアーテーパー、６……メス型ルアーテ
ーパー。
Fig. 1 is a sectional view showing the main parts of the medical guide wire according to the present invention, Fig. 2 is a sectional view taken along the - line of the guide wire in Fig. 1, and Fig. 3 is a side view showing how to use the guide wire. It is a diagram. 1... Medical guide wire, 2... Catheter, 2a... Hub, 3... Connector, 3a...
Projection piece, 3b...Empty, 4...Wire body, 5...
...Male type lure taper, 6...Female type lure taper.
Claims (1)
と、該コネクターの中空部内にて基端部が固定さ
れ、それより先端部が該コネクターから突出する
ワイヤ本体とを具備してなり、液体が該コネクタ
ーの一端から他端へ通過可能となつていることを
特徴とする医療用ガイドワイヤ。 ２ ワイヤ本体が超弾性線からなる請求項１記載
の医療用ガイドワイヤ。 ３ コネクターの先端部がオス型テーパー状を呈
している請求項１又は２記載の医療用ガイドワイ
ヤ。 ４ コネクターの後端部がメス型テーパー状を呈
している請求項１又は２記載の医療用ガイドワイ
ヤ。 ５ 基端にハブを取着してなるカテーテルと、該
ハブにコネクターを介して着脱自在に接続された
請求項１ないし４記載の医療用ガイドワイヤとを
具備してなるガイドワイヤ付カテーテル。[Scope of Claims] 1. A wire body comprising: a connector made of a hollow body with both ends open; and a wire body whose proximal end is fixed within the hollow part of the connector and whose distal end protrudes from the connector. . A medical guidewire, wherein a liquid is allowed to pass from one end of the connector to the other end. 2. The medical guide wire according to claim 1, wherein the wire body is made of a superelastic wire. 3. The medical guide wire according to claim 1 or 2, wherein the tip of the connector has a male tapered shape. 4. The medical guide wire according to claim 1 or 2, wherein the rear end of the connector has a female tapered shape. 5. A guidewire-equipped catheter comprising: a catheter having a hub attached to its proximal end; and the medical guidewire according to claim 1, which is detachably connected to the hub via a connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63261458A JPH01145075A (en) | 1988-10-19 | 1988-10-19 | Medical guide wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63261458A JPH01145075A (en) | 1988-10-19 | 1988-10-19 | Medical guide wire |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62214338A Division JPS6458263A (en) | 1987-08-28 | 1987-08-28 | Intravascular introducing catheter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01145075A JPH01145075A (en) | 1989-06-07 |
| JPH042074B2 true JPH042074B2 (en) | 1992-01-16 |
Family
ID=17362176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63261458A Granted JPH01145075A (en) | 1988-10-19 | 1988-10-19 | Medical guide wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01145075A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2986105B2 (en) * | 1989-01-25 | 1999-12-06 | オリンパス光学工業株式会社 | Electronic camera |
-
1988
- 1988-10-19 JP JP63261458A patent/JPH01145075A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01145075A (en) | 1989-06-07 |
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