JPH066125B2 - Device for introducing a medium into the human body - Google Patents
Device for introducing a medium into the human bodyInfo
- Publication number
- JPH066125B2 JPH066125B2 JP3014279A JP1427991A JPH066125B2 JP H066125 B2 JPH066125 B2 JP H066125B2 JP 3014279 A JP3014279 A JP 3014279A JP 1427991 A JP1427991 A JP 1427991A JP H066125 B2 JPH066125 B2 JP H066125B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- blood vessel
- artificial blood
- medium
- human body
- 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 - Fee Related
Links
- 238000004804 winding Methods 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 description 97
- 239000002473 artificial blood Substances 0.000 description 70
- 238000005452 bending Methods 0.000 description 8
- 210000003238 esophagus Anatomy 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 210000003437 trachea Anatomy 0.000 description 7
- 208000007474 aortic aneurysm Diseases 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 208000002251 Dissecting Aneurysm Diseases 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002297 emergency surgery Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Prostheses (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、血管や気管や食道等の
人体の管の目的箇所に人工血管その他の媒体を導入する
ための装置に関する発明である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for introducing an artificial blood vessel or other medium into a target portion of a human body tube such as a blood vessel, trachea or esophagus.
【０００２】[0002]
【従来の技術】現在、例えば、大動脈瘤の治療に当たっ
ては、人工血管を移植することにより行われているのが
現状である。つまり、手術により大動脈瘤に侵されてい
る血管部分を切断除去し、この切断除去した部分に人工
血管を縫合等の手術により接続して移植を行っていた。2. Description of the Related Art At present, for example, treatment of an aortic aneurysm is currently performed by transplanting an artificial blood vessel. That is, the blood vessel portion invaded by the aortic aneurysm is cut and removed by an operation, and an artificial blood vessel is connected to the cut and removed portion by an operation such as suturing for transplantation.
【０００３】ところで、大動脈瘤の治療に当たり、上記
のように手術により人工血管を移植する方法は危険率が
高いという問題がある。特に破裂に対する緊急手術はそ
の救命率が落ちるものであり、また、解離性動脈瘤は手
術が難しくて死亡率が高いという問題がある。そこで、
本発明者は手術無しに施工するために用いる人工血管を
開発し、既に特願平２ー３４２４７号として出願してい
る。この人工血管は、人工血管の両端部に弾性を有する
折り曲げ自在なリング状線材部を設けて構成したもので
あり、この人工血管を折り畳んでカテーテル内に挿入
し、例えば足の付け根の股動脈に穿刺して大動脈瘤等の
血管の患部までカテーテルの先端部を送り込み、カテー
テルに変形性を有する押し棒を挿入して押し棒によりカ
テーテル内に折り畳んで挿入した人工血管を押し出して
リング状線材部の弾性復元力により復元させて人工血管
を筒状に保形して人工血管の両端部を大動脈瘤などの患
部両側の血管壁に密着させ、血管内部に人工血管を固定
させるようにしていた。また、上記のようにして人工血
管を目的位置に残すと、カテーテルは引き抜くものであ
る。By the way, in treating an aortic aneurysm, the method of transplanting an artificial blood vessel by surgery as described above has a problem of high risk. In particular, emergency surgery for rupture has a problem that the survival rate is reduced, and dissecting aneurysm is difficult to operate and has a high mortality rate. Therefore,
The present inventor has developed an artificial blood vessel used for construction without surgery and has already applied for it as Japanese Patent Application No. 2-34247. This artificial blood vessel is configured by providing elastically bendable ring-shaped wire rod portions at both ends of the artificial blood vessel, and the artificial blood vessel is folded and inserted into a catheter, for example, in the hip artery at the base of the foot. Puncture and feed the distal end of the catheter to the affected area of the blood vessel such as aortic aneurysm, insert a deformable push rod into the catheter, fold it into the catheter with the push rod, and push out the inserted artificial blood vessel to remove the ring-shaped wire The artificial blood vessel is retained in a tubular shape by being restored by an elastic restoring force, and both ends of the artificial blood vessel are brought into close contact with the blood vessel walls on both sides of the affected area such as aortic aneurysm to fix the artificial blood vessel inside the blood vessel. When the artificial blood vessel is left at the target position as described above, the catheter is pulled out.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上記した人
工血管を装着しようとする血管の患部まで移送して開放
する場合、カテーテル内に人工血管を折り畳んで挿入す
るのが困難であり、また、正確に挿入されていないと押
し棒で簡単且つ正確に押し出すことができないという問
題があり、また、押し棒で押しながら移送するので、押
し棒の先端で人工血管を破損する恐れがあるという問題
があった。However, it is difficult to fold and insert the artificial blood vessel into the catheter when transferring the artificial blood vessel to the affected part of the blood vessel to be attached and opening it. There is a problem that it cannot be pushed out easily and accurately with the push rod unless it is inserted into the tube, and there is also the problem that the artificial blood vessel may be damaged at the tip of the push rod because it is transferred while pushing with the push rod. It was
【０００５】本発明は、上記した従来例の問題点に鑑み
て発明したものであって、その目的とするところは、血
管や気管や食道等の人体の管の目的箇所に人工血管その
他の媒体を破損することなく簡単且つ確実に移送し、目
的箇所で放出することができ、また、人体の管の内壁の
破損を防止でき、更にまた、カテーテルを併用する時に
はカテーテル内に簡単に媒体を入れることができる人体
に媒体を導入する装置を提供するにある。The present invention has been made in view of the above-mentioned problems of the prior art, and its object is to place an artificial blood vessel or other medium at a target portion of a blood vessel or a human body tube such as the trachea or esophagus. Can be easily and surely transferred without being damaged, and can be discharged at a target location, and can prevent damage to the inner wall of the human body tube. Furthermore, when the catheter is used together, the medium can be easily put into the catheter. An object of the present invention is to provide a device capable of introducing a medium into a human body.
【０００６】[0006]
【課題を解決するための手段】本発明の人体に媒体を導
入する装置は、先端部付近に側面窓部１を有したチュー
ブ２と、チューブ２内に挿入されたワイヤー３と、一端
部が側面窓部１付近に固着され且つチューブ２に外嵌さ
れた人体に導入すべき媒体に挿通して側面窓部１におい
てワイヤー３に巻かれる紐４とで構成される。A device for introducing a medium into a human body according to the present invention comprises a tube 2 having a side window portion 1 near the tip, a wire 3 inserted into the tube 2, and an end portion. It is composed of a string 4 which is fixed near the side window part 1 and which is fitted onto the tube 2 and is passed through a medium to be introduced into the human body and wound around the wire 3 in the side window part 1.
【０００７】また、チューブ２の先端部に柔軟な案内筒
５を連続して設けた構成としてもよいものである。ま
た、短いチューブ２の先端部に柔軟な短い案内筒５を連
続して設けると共にチューブ２の後端部に柔軟な長い後
部筒６を連続して設けた構成としてもよいものである。A flexible guide cylinder 5 may be continuously provided at the tip of the tube 2. Alternatively, a flexible short guide cylinder 5 may be continuously provided at the tip of the short tube 2, and a flexible long rear cylinder 6 may be continuously provided at the rear end of the tube 2.
【０００８】[0008]
【作用】本発明においては、チューブ２に移送しようと
する媒体（例えば人工血管７）を外嵌し、紐４を媒体に
通し、側面窓部１部分においてワイヤー３に紐４を巻い
てワイヤー３により媒体を保持した状態で、チューブ２
を直接あるいはカテーテル８内に挿入した状態で血管９
や気管や食道等の人体の管に差し込んで人体の管の目的
の位置（患部２６）に至らせ、この位置でワイヤー３を
チューブ２に対して引くことで、ワイヤー３の先端が紐
４から外れて紐４による媒体の保持が解除され、この状
態でチューブ２を引くことでチューブ２が媒体から抜け
て媒体を目的箇所に残したままチューブ２を引き抜くこ
とができることになる。カテーテル８内に挿入した場合
には、カテーテル８内にチューブ２を挿入すると紐４に
引かれてチューブ２と共に媒体がカテーテル８内に挿入
されるものであり、カテーテル８を血管や気管や食道等
の人体の管に差し込んで人体の管の目的の位置（患部２
６）に至らせ、この位置でチューブ２をカテーテル８に
対して押すことで紐４に引かれて媒体がカテーテル８の
先端から目的の位置に放出され、この状態でワイヤー３
をチューブ２に対して引くことで、ワイヤー３の先端が
紐４から外れて紐４による媒体の保持が解除され、この
状態でチューブ２を少し引くことでチューブ２が媒体か
ら抜けて媒体を目的箇所に残すことができ、その後、カ
テーテル８を引き抜くものである。In the present invention, the medium to be transferred to the tube 2 (for example, the artificial blood vessel 7) is externally fitted, the cord 4 is passed through the medium, and the cord 4 is wound around the wire 3 at the side window portion 1 to thereby wire 3. Tube 2 while holding the medium by
Blood vessel 9 either directly or with catheter 8 inserted
The tip of the wire 3 is pulled from the string 4 by inserting it into a human body tube such as the trachea or esophagus to reach the target position (affected part 26) of the human body tube and pulling the wire 3 with respect to the tube 2 at this position. When the cord 4 is detached, the holding of the medium by the string 4 is released, and by pulling the tube 2 in this state, the tube 2 can be pulled out from the medium and the tube 2 can be pulled out while leaving the medium at the target position. When the tube 2 is inserted into the catheter 8, when the tube 2 is inserted into the catheter 8, the medium is inserted into the catheter 8 together with the tube 2 by being pulled by the string 4, and the catheter 8 is inserted into the blood vessel, trachea, esophagus, etc. To the target position of the human body tube (the affected part 2
6), and by pushing the tube 2 against the catheter 8 at this position, the medium is released from the tip of the catheter 8 to the target position by being pulled by the string 4 and the wire 3 in this state.
Is pulled against the tube 2, the tip of the wire 3 is disengaged from the string 4 and the holding of the medium by the string 4 is released. In this state, the tube 2 is pulled out a little to get the medium out. It can be left in place and then the catheter 8 is withdrawn.
【０００９】また、チューブ２の先端部に案内筒５を連
続して設けた構成としたものにおいては、チューブ２を
人体の管内で移動する際に案内筒５の柔軟性によって人
体の管の内壁を傷つけることなく管に沿って移動が可能
となる。また、短いチューブ２の先端部に短い案内筒５
を連続して設けると共にチューブ２の後端部に長い後部
筒６を連続して設けたものにおいては、人体の管に挿入
するに当たり、管の屈曲に対して柔軟な案内筒５及び後
部筒６が容易に沿ってスムーズに移動でき、また案内筒
５及び後部筒６の柔軟さにより人体の管の内壁の破損を
防止することができる。Further, in the structure in which the guide tube 5 is continuously provided at the distal end portion of the tube 2, when the tube 2 is moved in the human body tube, the flexibility of the guide tube 5 causes the inner wall of the human body tube. It is possible to move along the pipe without damaging the. In addition, a short guide tube 5 is attached to the tip of the short tube 2.
In which the long rear tube 6 is continuously provided at the rear end portion of the tube 2, the guide tube 5 and the rear tube 6 which are flexible against bending of the tube upon insertion into a human body tube. Can be easily moved smoothly along it, and the flexibility of the guide tube 5 and the rear tube 6 can prevent damage to the inner wall of the human body tube.
【００１０】[0010]
【実施例】以下本発明を添付図面に示す実施例に基づい
て詳述する。図１には本発明の人体に媒体を導入する装
置の一実施例が示してある。チューブ２は金属製または
金属以外の柔軟な材料で形成してあって変形性を有して
いる。このチューブ２の先端部付近には側面窓部１が開
口してある。チューブ２の側面窓部１の近傍には紐４の
一端部が固着してある。チューブ２内にはワイヤー３が
挿入してある。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 shows an embodiment of an apparatus for introducing a medium into a human body according to the present invention. The tube 2 is made of metal or a soft material other than metal and has deformability. A side window 1 is opened near the tip of the tube 2. One end of a string 4 is fixed near the side window part 1 of the tube 2. A wire 3 is inserted in the tube 2.
【００１１】上記のような構成の人体に媒体を導入する
装置は人体の管の目的位置（患部２６）に移送するのに
使用するのであるが、以下、媒体が人工血管７であり、
人体の管が血管９である場合について本発明の上記装置
の使用例を説明する。人工血管７は図２に示すように、
布、フイルム等により可撓性ある筒状に形成してあり、
この人工血管７にはフレーム３２を取付けて円筒形状を
保持してある。このフレーム３２は人工血管７の両端部
に挿着した弾性を有するリング状線材部１０と、両側の
リング状線材部１０間に架設した連結線材部１１で構成
してあり、必要に応じて両リング状線材部１０間に中間
リング状線材部１２を介在するものである。そして、上
記フレーム３２は立体構造をしている。ここで連結線材
部１１の一例を示すと、連結線材部１１は連結前は略円
状となった弾性線材を用い、この円状となった連結線材
部１１を図３のように両側のリング状線材部１０の間に
配置して固着し、同様にしてリング状線材部１０の周方
向に複数個連結線材部１１を配置して固着し、更に、両
側のリング状線材部１０間に弾性を有する中間リング状
線材部１２を配置して構成してある。中間リング状線材
部１２は部分的に人工血管７に固着し、この中間リング
状線材部１２が上記両側のリング状線材部１０間に架設
した複数の連結線材部１１の外側に位置させて元来円状
であった連結線材部１１を押さえることで図２、図３の
ように楕円状に強制的に変形させてあり、このことによ
り楕円状が円状に戻ろうとする弾性復元力が蓄積される
ことになり、この弾性力が人工血管７を折り曲げても元
の筒状に復元させるばね力となっている。なお、実施例
では連結線材部１１は人工血管７に直接固着しないが、
必要に応じて部分的に固着することも可能である。な
お、図２、図３の実施例では一部の中間リング状線材部
１２（図２、図３において３つの中間リング状線材部１
２のうち真ん中のもの）は連結線材部１１の内側に位置
して連結線材部１１が人工血管７の内部に食い込まない
よう保持している。ここで、連結線材部１１と中間リン
グ状線材部１２とは非固着となっている。上記リング状
線材部１０、連結線材部１１、中間リング状線材部１２
はいずれも弾性復元力が優れた柔軟な材質のもの、例え
ばチタンニッケル合金針金等が使用されるが、勿論これ
にのみ限定されるものではない。また、リング状線材部
１０、連結線材部１１、中間リング状線材部１２の径は
人工血管７の径に対応して約２０ｍｍ〜３０ｍｍ程度に
設定してある。また、人工血管７の長さは患部に移植す
べき長さに応じて適宜長さが選択される。上記両端部に
リング状線材部１０を装着した人工血管７の一端部の開
口縁の対向する２箇所に糸などにより引っ掛け用輪１３
が形成してある。なお、必要に応じて人工血管７の他端
部の開口縁の対向する２箇所に同様にして糸などにより
引っ掛け用輪１３ａを設けてもよい。この場合、引っ掛
け用輪１３ａの位置は引っ掛け用輪１３に対して人工血
管７の周方向において９０°ずれて位置している。The device for introducing the medium into the human body having the above-described structure is used for transferring the medium to the target position (affected area 26) of the human body. Hereinafter, the medium is the artificial blood vessel 7,
An example of using the above-described device of the present invention will be described for the case where the human body tube is the blood vessel 9. The artificial blood vessel 7 is, as shown in FIG.
It is made of cloth, film, etc. in a flexible tubular shape.
A frame 32 is attached to the artificial blood vessel 7 to maintain a cylindrical shape. The frame 32 is composed of an elastic ring-shaped wire rod portion 10 inserted into both ends of the artificial blood vessel 7 and a connecting wire rod portion 11 laid between the ring-shaped wire rod portions 10 on both sides. The intermediate ring-shaped wire rod portion 12 is interposed between the ring-shaped wire rod portions 10. The frame 32 has a three-dimensional structure. Here, an example of the connecting wire rod portion 11 will be described. As the connecting wire rod portion 11, an elastic wire rod having a substantially circular shape before connection is used, and the connecting wire rod portion 11 having the circular shape is formed on both sides as shown in FIG. A plurality of connecting wire rod portions 11 are arranged and fixed in the circumferential direction of the ring-shaped wire rod portion 10 in the same manner as described above, and are further fixed between the ring-shaped wire rod portions 10 on both sides. The intermediate ring-shaped wire rod portion 12 having is arranged. The intermediate ring-shaped wire rod portion 12 is partially fixed to the artificial blood vessel 7, and the intermediate ring-shaped wire rod portion 12 is located outside the plurality of connecting wire rod portions 11 installed between the ring-shaped wire rod portions 10 on both sides. By pressing the connecting wire portion 11 that has been in a circular shape, it is forcibly deformed into an elliptical shape as shown in FIGS. 2 and 3, and as a result, an elastic restoring force for restoring the elliptical shape to a circular shape is accumulated. This elastic force serves as a spring force that restores the artificial blood vessel 7 to its original tubular shape even when it is bent. Although the connecting wire portion 11 is not directly fixed to the artificial blood vessel 7 in the embodiment,
It is also possible to partially fix them if necessary. 2 and 3, some intermediate ring-shaped wire rod portions 12 (three intermediate ring-shaped wire rod portions 1 in FIGS. 2 and 3) are used.
The middle one (2) is located inside the connecting wire portion 11 and holds the connecting wire portion 11 so as not to bite into the artificial blood vessel 7. Here, the connecting wire rod portion 11 and the intermediate ring-shaped wire rod portion 12 are not fixed. The ring-shaped wire rod portion 10, the connecting wire rod portion 11, the intermediate ring-shaped wire rod portion 12
In each case, a flexible material having an excellent elastic restoring force, for example, a titanium nickel alloy wire or the like is used, but of course, the material is not limited to this. The diameters of the ring-shaped wire rod portion 10, the connecting wire rod portion 11, and the intermediate ring-shaped wire rod portion 12 are set to about 20 mm to 30 mm corresponding to the diameter of the artificial blood vessel 7. Further, the length of the artificial blood vessel 7 is appropriately selected according to the length to be transplanted in the affected area. Wheels 13 for hooking with thread or the like at two opposing positions on the opening edge at one end of the artificial blood vessel 7 having the ring-shaped wire rods 10 attached to both ends.
Is formed. If necessary, hooking wheels 13a may be similarly provided on the opening edge of the other end of the artificial blood vessel 7 at two opposing positions with a thread or the like. In this case, the position of the hooking wheel 13a is displaced by 90 ° with respect to the hooking wheel 13 in the circumferential direction of the artificial blood vessel 7.
【００１２】しかして、上記の構成の人工血管７を図４
のようにチューブ２に外嵌し、図５のように紐４を人工
血管７の前端部に位置する引っ掛け用輪１３に通し、こ
の紐４を更にチューブ２の側面窓部１部分においてワイ
ヤー３に半巻き、又は一回、又は複数回巻き、チューブ
２に挿入したワイヤー３に人工血管７を保持する。この
場合、ワイヤー３の先端を一旦側面窓部１から出して紐
４を巻き、その後再びワイヤー３の先端を側面窓部１か
らチューブ２内に挿入することで簡単に側面窓部１部分
においてワイヤー３に紐４を巻いた状態とすることがで
きるものである。また、この場合、更に、図６のように
紐４に結び目のような膨大部１４を設けておくと紐４が
側面窓部１の縁とワイヤー３との間に挟み込まれてより
正確に紐４の保持ができるものである。また、紐４は図
２１のように複数本設けてもよい。このようにワイヤー
３により媒体である人工血管７を保持した状態で、チュ
ーブ２を直接あるいはカテーテル８内に挿入した状態で
血管９や気管や食道等の人体の管に差し込んで人体の管
の目的の位置（患部）に至らせるのであるが、以下、媒
体である人工血管７をワイヤー３で保持したチューブ２
をカテーテル８に挿入した状態で血管９に挿入する実施
例につき述べる。Therefore, the artificial blood vessel 7 having the above structure is shown in FIG.
As shown in FIG. 5, the string 4 is passed through the hooking ring 13 located at the front end of the artificial blood vessel 7, and the string 4 is further attached to the wire 3 at the side window 1 portion of the tube 2. The artificial blood vessel 7 is held on the wire 3 inserted into the tube 2 by half winding, or once or multiple times. In this case, the tip of the wire 3 is temporarily taken out from the side window part 1, the string 4 is wound, and then the tip of the wire 3 is again inserted into the tube 2 from the side window part 1 to easily wire the side window part 1. The cord 4 can be wound around the cord 3. Further, in this case, if the cord 4 is further provided with an enlarged portion 14 such as a knot as shown in FIG. 6, the cord 4 is sandwiched between the edge of the side window part 1 and the wire 3, and the cord 4 is more accurate. 4 can be held. Further, a plurality of strings 4 may be provided as shown in FIG. In this way, the artificial blood vessel 7 as a medium is held by the wire 3, and the tube 2 is inserted directly or in the state of being inserted into the catheter 8 into the blood vessel 9 or a human body tube such as the trachea or esophagus, for the purpose of the human body tube. The tube 2 in which the artificial blood vessel 7 as a medium is held by the wire 3
A description will be given of an embodiment in which the catheter is inserted into the blood vessel 9 while being inserted into the catheter 8.
【００１３】チューブ２をカテーテル８に挿入するに当
たり、人工血管７は折り畳んで挿入するのであるが、こ
のカテーテル８の挿入と人工血管７の折り畳み挿入とは
次のようにして行う。図８において１５はカテーテル８
の後端部に設けた逆止弁であって、この逆止弁１５は弾
性膜により形成してあり、弾性膜に孔１７を穿孔してあ
り、通常はこの孔１７は閉塞しているものである。図８
において１８はラッパ状筒であり、先端部に金属筒１９
が連設してある。そして金属筒１９がカテーテル８の後
端部に着脱自在にはめ込んで接続することができるよう
になっている。ラッパ状筒１８は図の実施例では引っ掛
け用輪１３をリング状線材部１０の２等分点に位置させ
たので断面楕円状をしているが、引っ掛け用輪１３をリ
ング状線材部１０の３等分点に位置させた場合は断面三
角形状とし、また、引っ掛け用輪１３をリング状線材部
１０の４等分点に位置させた場合は断面四角形状とする
ものである。そして、図７に示す実施例においては、人
工血管７の先端部の開口縁の対向する２箇所に形成した
引っ掛け用輪１３に前引張用紐２０を通し、また、人工
血管７の他端部の開口縁の対向する２箇所に設けた引っ
掛け用輪１３ａに後引張用紐２１を通し、この後引張用
紐２１の他端を棒状をした把手２２に取付ける。この状
態で、更に、図１１に示すようにチューブ２にバルーン
カテーテル２３を被嵌し、バルーンカテーテル２３の先
端がチューブ２に被嵌した人工血管７の後端から略２〜
３ｃｍ離れた位置に位置させ、この状態でバルーカテー
テル２３の締めつけ具２４を締めつけてバルーンカテー
テル２３をチューブ２と一体に動くようにセットする。When inserting the tube 2 into the catheter 8, the artificial blood vessel 7 is folded and inserted. The insertion of the catheter 8 and the folding insertion of the artificial blood vessel 7 are performed as follows. In FIG. 8, 15 is a catheter 8.
A check valve provided at a rear end portion of the check valve, wherein the check valve 15 is formed of an elastic film, and a hole 17 is formed in the elastic film, and the hole 17 is normally closed. Is. Figure 8
18 is a trumpet-shaped tube and has a metal tube 19 at the tip.
Are connected in series. The metal tube 19 can be detachably fitted and connected to the rear end of the catheter 8. The trumpet-shaped tube 18 has an elliptical cross section because the hooking wheel 13 is located at the bisector of the ring-shaped wire rod portion 10 in the illustrated embodiment, but the hooking wheel 13 is formed in the ring-shaped wire rod portion 10. When it is located at three equal points, it has a triangular cross section, and when the hooking wheel 13 is located at four equally divided points of the ring-shaped wire rod portion 10, it has a square cross section. Then, in the embodiment shown in FIG. 7, the front pulling string 20 is passed through the hooking wheels 13 formed at the two opposing edges of the opening edge of the distal end portion of the artificial blood vessel 7, and the other end portion of the artificial blood vessel 7 is also inserted. The rear pulling cords 21 are passed through the hooking wheels 13a provided at two opposite positions of the opening edge of, and the other end of the rear pulling cords 21 is attached to the bar-shaped handle 22. In this state, as shown in FIG. 11, a balloon catheter 23 is fitted on the tube 2, and the distal end of the balloon catheter 23 is approximately 2 to 2 from the rear end of the artificial blood vessel 7 fitted on the tube 2.
The balloon catheter 23 is positioned at a position separated by 3 cm, and in this state, the tightening tool 24 of the balloon catheter 23 is tightened and the balloon catheter 23 is set so as to move integrally with the tube 2.
【００１４】次に、ラッパ状筒１８をカテーテル８から
外した状態で、図９、図１０のように引張用紐２０をラ
ッパ状筒１８の後部より挿入して先端の接続筒１９から
前方に導出すると共にチューブ２を一定程度ラッパ状筒
１８内に挿入する。この状態で図１０のように把手２２
で後方へ向く引張力を加えながら前引張用紐２０を前方
に引きながら人工血管７をラッパ状筒１８の大径の入口
１８ａからラッパ状筒１８内に導入する。ここで、前端
のリング状線材部１０を周方向において４等分して、こ
の４等分した仮想の点（またはその付近）を便宜上第１
の点４１1 、第２の点４２1 、第３の点４３1 、第４の
点４４1 、また後端のリング状線材部１０を周方向にお
いて第１の点４１2 、第２の点４２2 、第３の点４
３2 、第４の点４４2 の４点で４等分し、前端のリング
状線材部１０の第１の点４１1 と第３の点４３1 とをそ
れぞれ引っ掛け部１３の取付け部分に該当させた場合、
前端のリング状線材部１０の第１の点４１1 及び第３の
点４３1 を結んだ線が図７のＢに示すように略楕円状と
なった大径の入口１８ａの短径方向に位置すると共に第
２の点４２2 と第４の点４４2 とを結んだ線が該入口１
８ａの長径方向に位置するように（つまり図１０に示す
ように）セットし、この状態で前引張用紐２０を引く
と、人工血管７の前端のリング状線材部１０の対向する
２点である第１の点４１1 と第３の点４３1 （ここで、
前述のように前端のリング状線材部１０の第１の点４１
1 と第３の点４３1 とはそれぞれ引っ掛け部１３の取付
け部分に該当する）が前引張用紐２０で引かれるため、
前端のリング状線材部１０は対向する引っ掛け部１３の
取付け部分である第１の点４１1 と第３の点４３1 とが
近づくように偏平に潰されるとともにラッパ状筒１８内
を第１の点４１1 と第３の点４３1 が先に引かれるため
偏平に潰された前端のリング状線材部１０は更に前端の
リング状線材部１０の対向する第２の点４２1 と第４の
点４４1 とが後方に位置し且つ第２の点４２1 と第４の
点４４1 とが近づくように折り曲げられながらラッパ状
筒１８内に挿入していくものである。つまり、前端のリ
ング状線材部１０は図１７のＡの状態から、Ｂの状態に
変形し、更に、Ｃの状態に変形して、引っ掛け部１３部
分である第１の点４１1 及び第３の点４３1 が前向きの
山形の頂となり、第２の点４２1 と第４の点４４1 とが
前向きの谷形の底となって、前端のリング状線材部１０
が全体として波状となるものである。この時、更に、前
引張用紐２０を前方に更に引くと、後端のリング状線材
部１０は後引張用紐２１により対向する位置に設けた引
っ掛け部１３ａ部分（この部分が後端のリング状線材部
１０の第２の点４２2 、第４の点４４2 に該当する）で
後方に引かれているので、後端のリング状線材部１０は
対向する第２の点４２2 及び第４の点４４2 に該当する
引っ掛け部１３ａの取付け部分で後方に引かれて、同時
に人工血管７の前端が前記前引張用紐２０で前方に引か
れるため、後端のリング状線材部１０は第１の点４１2
と第３の点４３2 とが先にラッパ状筒１８内に引かれて
第１の点４１2 と第３の点４３2 とが近づくように偏平
に潰されるとともに対向する第２の点４２2 と第４の点
４４2 とが後方に位置し且つ第２の点４２2 と第４の点
４４2 とが近づくように折り曲げられながらラッパ状筒
１８内に挿入していくものである。つまり、後端のリン
グ状線材部１０は図１８のＡの状態から、Ｂの状態に変
形し、更に、Ｃの状態に変形して、引っ掛け部１３ａ部
分である第２の点４２2 と第４の点４４2 とが後向きの
山形の頂となり、第１の点４１2 と第３の点４３2 とが
後向きにの谷形の底となって、後端のリング状線材部１
０が全体として波状となるものである。図１９のＡ、Ｃ
に上記のようにして折り曲げられる人工血管７の前後両
端のリング状線材部１０と連結環状線材部１１との折り
曲げの各過程における変形させられた部材相互の関係が
示してある（この図では便宜上、中間リング１２を省略
した図面が示してある）。すなわち、図１９のＡ→Ｃの
順序で折り曲げられることになる。このように折り曲げ
ると、連結環状線材部１１が図１９のＢに示すように略
直線状となって弛むことがないようになっている。図２
０に上記のようにして折り曲げた人工血管７の折り曲げ
状態を示している。このようにして人工血管７をラッパ
状筒１８の大径の入口１８ａから入れて折り畳みながら
接続筒１９内に導入した状態で、上記の前引張用紐２０
と後引張用紐２１とをそれぞれ結び目を外して、一端を
引くことにより引っ掛け部１３及び引っ掛け部１３ａか
ら引き抜くものである。Next, with the trumpet-shaped tube 18 removed from the catheter 8, the pulling cord 20 is inserted from the rear part of the trumpet-shaped tube 18 as shown in FIGS. The tube 2 is pulled out and inserted into the trumpet-shaped tube 18 to a certain extent. In this state, the handle 22 as shown in FIG.
The artificial blood vessel 7 is introduced into the trumpet-shaped tube 18 through the large-diameter inlet 18a of the trumpet-shaped tube 18 while pulling the front-pulling string 20 forward while applying a pulling force directed backward. Here, the ring-shaped wire rod portion 10 at the front end is divided into four equal parts in the circumferential direction, and the virtual point (or its vicinity) obtained by dividing the four equal parts is the first for convenience.
41 1 , the second point 42 1 , the third point 43 1 , the fourth point 44 1 , and the ring-shaped wire rod portion 10 at the rear end in the circumferential direction, the first point 41 2 , the second point 42 2 , third point 4
3 2, 4 equal portions at four points of the fourth point 44 2, corresponding to the mounting portion of the first point 41 1 and the third point 43 1 and hooking the respective portions 13 of the end wire ring 10 of the front end If you let
The line connecting the first point 41 1 and the third point 43 1 of the ring-shaped wire portion 10 at the front end is in the minor axis direction of the large-diameter inlet 18a having a substantially elliptical shape as shown in FIG. 7B. The line that is located and connects the second point 42 2 and the fourth point 44 2 is the inlet 1
8a is set so as to be positioned in the major axis direction (that is, as shown in FIG. 10), and when the front pulling cord 20 is pulled in this state, at the two opposing points of the ring-shaped wire rod portion 10 at the front end of the artificial blood vessel 7. There is a first point 41 1 and a third point 43 1 (where
As described above, the first point 41 of the ring-shaped wire rod portion 10 at the front end
1 and the third point 43 1 correspond to the attachment portions of the hooking portion 13) and are pulled by the front pulling cord 20,
The ring-shaped wire rod portion 10 at the front end is flatly crushed so that the first point 41 1 and the third point 43 1 which are the mounting portions of the facing hooking portions 13 come close to each other, and the inside of the trumpet-shaped tube 18 is Since the point 41 1 and the third point 43 1 are drawn first, the flattened ring-shaped wire rod portion 10 at the front end further has the second point 42 1 and the fourth point 42 1 facing each other of the ring-shaped wire rod portion 10 at the front end. The point 44 1 is located rearward, and the second point 42 1 and the fourth point 44 1 are bent so as to come close to each other and are inserted into the trumpet-shaped tube 18. That is, the ring-shaped wire rod portion 10 at the front end is deformed from the state of A in FIG. 17 to the state of B, and further to the state of C, and the first point 41 1 and the third point which are the hooking portion 13 and the third portion. Point 43 1 is the top of the forward-facing chevron, and the second point 42 1 and the fourth point 44 1 are the forward-facing valley-shaped bottom, and the front end ring-shaped wire rod portion 10 is formed.
Is wavy as a whole. At this time, when the front pulling cord 20 is further pulled forward, the ring-shaped wire rod portion 10 at the rear end is provided with a hooking portion 13a provided at a position opposed to the rear pulling cord 21 (this portion is a ring at the rear end). (Corresponding to the second point 42 2 and the fourth point 44 2 of the linear wire portion 10), the ring-shaped wire portion 10 at the rear end has the second point 42 2 and the second point 42 2 facing each other. Since the front end of the artificial blood vessel 7 is pulled forward by the front pulling cord 20 at the same time as it is pulled rearward at the attachment portion of the hooking portion 13a corresponding to the point 44 2 of 4, the ring-shaped wire rod portion 10 at the rear end is First point 41 2
And the third point 43 2 are first drawn into the trumpet-shaped tube 18 and are flatly crushed so that the first point 41 2 and the third point 43 2 come close to each other and the second point 42 facing each other. 2 and the fourth point 44 2 are located rearward, and the second point 42 2 and the fourth point 44 2 are bent so as to come close to each other and inserted into the trumpet-shaped tube 18. That is, the ring-shaped wire rod portion 10 at the rear end is deformed from the state of A in FIG. 18 to the state of B, and is further deformed to the state of C, and the second point 42 2 which is the hooking portion 13 a and the second point 42 2 . The point 44 2 of 4 is the top of the rearwardly facing chevron, and the first point 41 2 and the third point 43 2 are the bottom of the rearwardly facing trough.
0 is wavy as a whole. 19A and C
Shows the relationship between the deformed members in the respective bending processes of the ring-shaped wire rod portion 10 and the connecting annular wire rod portion 11 at the front and rear ends of the artificial blood vessel 7 that is bent as described above (in this figure, for convenience). , A drawing in which the intermediate ring 12 is omitted is shown). That is, it is bent in the order of A → C in FIG. When bent in this manner, the connecting annular wire member portion 11 becomes substantially linear as shown in FIG. 19B and is not loosened. Figure 2
0 shows a bent state of the artificial blood vessel 7 bent as described above. In this way, the artificial blood vessel 7 is introduced into the connecting tube 19 while being inserted from the large-diameter inlet 18a of the trumpet-shaped tube 18 and being folded, and the above-mentioned pretensioning cord 20
The rear pulling cord 21 and the rear pulling cord 21 are pulled out from the hooking portion 13 and the hooking portion 13a by removing the knots and pulling one end.
【００１５】一方、カテーテル８をあらかじめ例えば足
の付け根の股動脈に穿刺して大動脈瘤等の血管９の患部
２６までカテーテル８の先端部を送り込んでおく。この
場合、カテーテル８の先端部を目的部位である患部の少
し先まで位置するように差し込むものである。次に、金
属筒１９をカテーテル８の後端部に設けた逆止弁１６で
ある弾性膜の孔１７に差込み、この状態で、該ワイヤー
３を挿入したチューブ２をカテーテル８内に差し込み、
該ワイヤー３を挿入したチューブ２の先端を図１２のよ
うにカテーテル８の先端に位置させてワイヤー３に保持
した人工血管７をチューブ２内の先端部の目的位置に位
置させる。ここで、ワイヤー３を挿入したチューブ２を
そのままの位置に残したまま図１２→図１３のように引
き抜いていくと、カテーテル８内に折り畳まれて挿入さ
れていた人工血管７はその前端部から開きながら図１３
→図１４Ａ→図１４Ｂの順序で血管９内に放出される。
放出された人工血管７はリング状線材部１０及び連結環
状線材部１１の弾性復元力により筒状に復元して血管９
内壁に圧接するものである。放出位置が悪ければ人工血
管７を保持しているチューブ２を前後移動させて人工血
管７の位置調整をする。次に、締め付け具２４の締め付
けを解除してバルーンカテーテル２３とチューブ２との
結合を解除し、バルーンカテーテル８をチューブ２に沿
って人工血管７内へ押し進め、その先端を図１５に示す
ように人工血管７の先端に到るまで進める。ここで、バ
ルーンカテーテル２３を図１５の一点鎖線のように膨張
させて、人工血管７を完全に拡張して血管９内壁に固定
させる。上記人工血管７の固定が終わると、バルーンカ
テーテル２３を収縮させて抜取る。そして、人工血管７
が血管９内壁に固定されたことを確認した後、図１６の
ようにチューブ２に対してワイヤー３を引くとワイヤー
３の先端がチューブ２の側面窓部１よりも後退した時に
側面窓１部分でワイヤー３に巻いていた紐４がワイヤー
３から外れる。この状態で、チューブ２を引くと、紐４
が引っ掛け部１３から外れ、人工血管７のみを血管９の
所定位置に残してチューブ２が引き出されるのである。On the other hand, the tip of the catheter 8 is sent in advance to the affected part 26 of the blood vessel 9 such as an aortic aneurysm by puncturing the catheter 8 with the catheter 8 at the base of the foot. In this case, the distal end portion of the catheter 8 is inserted so as to be positioned slightly ahead of the affected area which is the target site. Next, the metal cylinder 19 is inserted into the hole 17 of the elastic film which is the check valve 16 provided at the rear end of the catheter 8, and in this state, the tube 2 into which the wire 3 is inserted is inserted into the catheter 8.
The tip of the tube 2 into which the wire 3 is inserted is positioned at the tip of the catheter 8 as shown in FIG. 12, and the artificial blood vessel 7 held by the wire 3 is positioned at the target position of the tip of the tube 2. Here, when the tube 2 into which the wire 3 has been inserted is left as it is and pulled out as shown in FIG. 12 → FIG. 13, the artificial blood vessel 7 folded and inserted in the catheter 8 is inserted from the front end portion thereof. Figure 13 while opening
→ It is released into the blood vessel 9 in the order of Fig. 14A → Fig. 14B.
The released artificial blood vessel 7 is restored into a tubular shape by the elastic restoring force of the ring-shaped wire rod portion 10 and the connecting annular wire rod portion 11, and the blood vessel 9
It is pressed against the inner wall. If the discharge position is bad, the tube 2 holding the artificial blood vessel 7 is moved back and forth to adjust the position of the artificial blood vessel 7. Next, the fastening of the fastening tool 24 is released to release the connection between the balloon catheter 23 and the tube 2, the balloon catheter 8 is pushed along the tube 2 into the artificial blood vessel 7, and the tip thereof is moved as shown in FIG. Proceed until reaching the tip of the artificial blood vessel 7. Here, the balloon catheter 23 is inflated as shown by the alternate long and short dash line in FIG. 15 to completely expand the artificial blood vessel 7 and fix it to the inner wall of the blood vessel 9. When the fixation of the artificial blood vessel 7 is completed, the balloon catheter 23 is deflated and withdrawn. And artificial blood vessel 7
After confirming that the wire 3 is fixed to the inner wall of the blood vessel 9, when the wire 3 is pulled to the tube 2 as shown in FIG. 16, when the tip of the wire 3 retracts from the side window 1 of the tube 2, the side window 1 part Then, the string 4 wound around the wire 3 comes off the wire 3. In this state, pull the tube 2 and the string 4
Is disengaged from the hook portion 13, and the tube 2 is pulled out while leaving only the artificial blood vessel 7 at a predetermined position of the blood vessel 9.
【００１６】上記実施例ではバルーンカテーテル２３を
用いた実施例を示したが、バルーンカテーテル２３を用
いないで、人工血管７の弾性復元力のみで人工血管７を
血管９の内壁に圧接するようにしてもよい。次に、図２
２に基づいて本発明の他の実施例につき説明する。この
実施例においては、チューブ２の先端部に柔軟な案内筒
５を連続して設けたものである。ここで案内筒５は柔軟
な金属やポリエチレン等の合成樹脂により形成したコイ
ルやあるいは柔軟な合成樹脂やゴムにより形成した筒で
ある。このように、チューブ２の先端部に柔軟な案内筒
５を連続して設けたのはチューブ２先端が血管９の内壁
を損傷しないようにするための工夫である。Although the embodiment using the balloon catheter 23 is shown in the above embodiment, the artificial blood vessel 7 is pressed against the inner wall of the blood vessel 9 only by the elastic restoring force of the artificial blood vessel 7 without using the balloon catheter 23. May be. Next, FIG.
Another embodiment of the present invention will be described based on 2. In this embodiment, a flexible guide tube 5 is continuously provided at the tip of the tube 2. Here, the guide tube 5 is a coil formed of a flexible metal or a synthetic resin such as polyethylene, or a tube formed of a flexible synthetic resin or rubber. In this way, the flexible guide cylinder 5 is continuously provided at the tip of the tube 2 to prevent the tip of the tube 2 from damaging the inner wall of the blood vessel 9.
【００１７】また、図２３には本発明の更に他の実施例
が示してあり、この実施例においては、短いチューブ２
の先端部に短い案内筒５を連続して設けると共にチュー
ブ２の後端部に長い後部筒６を連続して設けたものであ
り、短い案内筒５及び長い後部筒６はいずれも柔軟な金
属やポリエチレン等の合成樹脂により形成したコイルや
あるいは柔軟な合成樹脂やゴムにより形成した筒で構成
してある。このように、チューブ２の前端部に柔軟な短
い案内筒５を連続させると共にチューブ２の後端部に柔
軟な後部筒６を連続させることで、血管９に挿入するに
当たり、血管９の屈曲に対して柔軟な案内筒５及び後部
筒６が容易に沿ってスムーズに移動でき、また案内筒５
及び後部筒６の柔軟さにより血管９の内壁の破損を防止
するものである。FIG. 23 shows another embodiment of the present invention. In this embodiment, the short tube 2 is used.
The short guide cylinder 5 is continuously provided at the front end of the tube, and the long rear cylinder 6 is continuously provided at the rear end of the tube 2. Both the short guide cylinder 5 and the long rear cylinder 6 are made of flexible metal. The coil is made of synthetic resin such as polyethylene or polyethylene, or a cylinder made of flexible synthetic resin or rubber. In this way, by connecting the flexible short guide cylinder 5 to the front end of the tube 2 and the flexible rear cylinder 6 to the rear end of the tube 2, the blood vessel 9 is bent when it is inserted into the blood vessel 9. On the other hand, the flexible guide cylinder 5 and the rear cylinder 6 can be easily moved smoothly along the guide cylinder 5
Also, the flexibility of the rear cylinder 6 prevents damage to the inner wall of the blood vessel 9.
【００１８】また、図２４には本発明の人体に媒体を導
入する装置の更に他例が示してある。この実施例におい
ては紐４として図に示すように先端が環状となったもの
を使用してある。そして、この実施例では紐４の先端の
環状となった部分の中に図２４のように側面窓１部分に
おいてワイヤー３を通して挟持するようになっている。FIG. 24 shows still another example of the apparatus for introducing the medium into the human body of the present invention. In this embodiment, a string 4 having an annular tip is used as the string 4 as shown in the figure. In this embodiment, the wire 3 is inserted into the annular portion of the tip of the string 4 through the side window 1 as shown in FIG.
【００１９】上記各実施例では、ワイヤー３を挿入した
チューブ２により媒体としての人工血管７を血管に挿入
する例を示したが、本発明にあっては、人工血管７を血
管９内の所定の位置に移送する実施例のもののみに限定
されない。すなわち、人体の気管や食道等の人体の他の
管の目的箇所に媒体を導入するのに利用できる。In each of the above-mentioned embodiments, the example in which the artificial blood vessel 7 as a medium is inserted into the blood vessel by the tube 2 into which the wire 3 is inserted is shown. However, in the present invention, the artificial blood vessel 7 is placed in the blood vessel 9 at a predetermined position. However, the present invention is not limited to the example of transferring to the position of. That is, it can be used to introduce the medium into a target portion of another duct of the human body such as the trachea of the human body or the esophagus.
【００２０】[0020]
【発明の効果】本発明にあっては、先端部付近に側面窓
部を有したチューブと、チューブ内に挿入されたワイヤ
ーと、一端部が側面窓部付近に固着され且つチューブに
外嵌された人体に導入すべき媒体に挿通して側面窓部に
おいてワイヤーに巻かれる紐とで構成されているので、
紐を媒体に通し、側面窓部部分においてワイヤーに紐を
巻いてワイヤーにより媒体を保持した状態で、チューブ
を血管や気管や食道等の人体の管に差し込んで人体の管
の目的の位置（患部）に至らせてワイヤーをチューブに
対して引くことで、ワイヤーの先端が紐から外れて紐に
よる媒体の保持が解除され、この状態でチューブを引く
ことでチューブが媒体から抜けて媒体のみを目的箇所に
残したままチューブを引く抜くことができ、簡単な構造
で媒体を人体の管の目的位置に運搬して残置することが
できるものである。According to the present invention, a tube having a side window near the tip, a wire inserted into the tube, and one end fixed to the side window and fitted onto the tube. Since it is composed of a string that is inserted into the medium to be introduced into the human body and is wound on the wire in the side window part,
Pass the cord through the medium, wrap the cord around the side window part and hold the medium by the wire.Insert the tube into a human body tube such as a blood vessel, trachea or esophagus, and insert the tube into the target position (the affected part). ) And pull the wire against the tube, the tip of the wire is released from the string and the holding of the medium by the string is released.By pulling the tube in this state, the tube comes out of the medium and only the medium is intended. The tube can be pulled out while it is left in place, and the medium can be transported to the target position of the human body tube and left there with a simple structure.
【００２１】また、 チューブの先端部に柔軟な案内筒
を連続して設けたものにおいては、チューブを人体の管
内で移動する際に案内筒の柔軟性によって人体の管の内
壁を傷つけることなく管に沿って移動することができる
ものである。また、短いチューブの先端部に短い案内筒
を連続して設けると共にチューブの後端部に長い後部筒
を連続して設けたものにおいては、人体の管に挿入する
に当たり、人体の管の屈曲に対して柔軟な案内筒及び後
部筒が容易に沿ってスムーズに移動でき、また案内筒及
び後部筒の柔軟さにより人体の管の内壁の破損を防止す
ることができるものである。Further, in the case where a flexible guide tube is continuously provided at the tip of the tube, the flexibility of the guide tube does not damage the inner wall of the human body tube when the tube is moved in the tube of the human body. Is something that can be moved along. Also, in the case where a short guide tube is continuously provided at the tip of a short tube and a long rear tube is continuously provided at the rear end of the tube, when inserting into a human body tube, bending of the human body tube On the other hand, the flexible guide cylinder and the rear cylinder can easily move smoothly along the same, and the flexibility of the guide cylinder and the rear cylinder can prevent the inner wall of the human body tube from being damaged.
【図１】本発明の人体に媒体を導入する装置の一実施例
の斜視図である。FIG. 1 is a perspective view of an embodiment of an apparatus for introducing a medium into a human body of the present invention.
【図２】同上の装置により運搬しようとする媒体の一例
である人工血管の斜視図である。FIG. 2 is a perspective view of an artificial blood vessel, which is an example of a medium to be transported by the above device.
【図３】同上の人工血管に用いるフレームの斜視図であ
る。FIG. 3 is a perspective view of a frame used for the artificial blood vessel of the above.
【図４】同上の人工血管をチューブに被嵌した状態の斜
視図である。FIG. 4 is a perspective view showing a state in which a tube is fitted with the artificial blood vessel of the same.
【図５】同上の人工血管の引っ掛け用輪に紐を通すと共
にワイヤーに巻いている状態の斜視図である。FIG. 5 is a perspective view showing a state in which a string is passed through the hooking loop of the artificial blood vessel and the wire is wound around the artificial blood vessel.
【図６】同上の紐をワイヤーに巻付け完了した状態の斜
視図である。FIG. 6 is a perspective view showing a state in which the above-mentioned cord is completely wound around a wire.
【図７】同上のラッパ状筒を示す図面で、Ａは斜視図、
ＢはＡのＸーＸ線断面図であり、ＣはＡのＹーＹ線断面
図である。FIG. 7 is a drawing showing the trumpet-shaped tube of the same, where A is a perspective view;
B is a sectional view taken along line XX of A, and C is a sectional view taken along line YY of A.
【図８】同上の前後の引っ掛け用輪に前引張用紐と後引
張用紐を通した状態の斜視図である。FIG. 8 is a perspective view showing a state in which a front pulling cord and a rear pulling cord are passed through the front and rear hooking wheels of the same.
【図９】同上のラッパ状筒に人工血管を挿入する前の状
態の斜視図である。FIG. 9 is a perspective view showing a state before inserting the artificial blood vessel into the trumpet-shaped tube of the same.
【図１０】同上のラッパ状筒に人工管を挿入する前の状
態のバルーンカテーテルのチューブへの被嵌状態の一部
省略した斜視図である。FIG. 10 is a partially omitted perspective view of a state in which the balloon catheter is fitted into the tube before the artificial tube is inserted into the trumpet-shaped tube.
【図１１】同上のラッパ状筒に人工血管を挿入する直前
の状態の斜視図である。FIG. 11 is a perspective view of a state immediately before inserting the artificial blood vessel into the trumpet-shaped tube of the same.
【図１２】同上の血管に挿入したカテーテル内にチュー
ブを挿入している状態の断面図である。FIG. 12 is a cross-sectional view showing a state where a tube is inserted into the catheter inserted into the blood vessel of the above.
【図１３】同上のチューブを残してカテーテルを引き始
めた状態の断面図である。FIG. 13 is a cross-sectional view showing a state in which the catheter has started to be pulled while leaving the tube of the above.
【図１４】同上のカテーテルを引く状態の説明図で、Ａ
は途中まで引いた状態の断面図であり、Ｂは完全に引い
た状態の断面図である。FIG. 14 is an explanatory view showing a state in which the catheter is pulled in the above, and
Is a sectional view in a partially pulled state, and B is a sectional view in a completely pulled state.
【図１５】同上のバルーンカテーテルを人工管内に移動
させた状態の断面図である。FIG. 15 is a cross-sectional view showing a state in which the balloon catheter of the same is moved into the artificial tube.
【図１６】同上のチューブに対してワイヤーを引いてワ
イヤーから紐の巻付けを解除した状態の拡大斜視図であ
る。FIG. 16 is an enlarged perspective view showing a state in which the wire is pulled from the tube and the winding of the string is released from the wire.
【図１７】同上の前のリング状線材部を折り曲げる順序
を示す説明図である。FIG. 17 is an explanatory view showing the order of bending the previous ring-shaped wire rod portion of the above.
【図１８】同上の後のリング状線材部を折り曲げる順序
を示す説明図である。FIG. 18 is an explanatory view showing the order of bending the ring-shaped wire rod portion after the above.
【図１９】同上の前後のリング状線材部及び連結環状線
材部の折り曲げ順序を示す説明図であり、Ａは折り曲げ
前を示し、Ｂは折り曲げ後を示している。FIG. 19 is an explanatory view showing the order of bending the front and rear ring-shaped wire rod portions and the connecting annular wire rod portion, where A is before bending and B is after bending.
【図２０】同上の人工血管を折り曲げた状態の斜視図で
ある。FIG. 20 is a perspective view showing a state in which the artificial blood vessel of the same is folded.
【図２１】本発明の他の実施例の斜視図である。FIG. 21 is a perspective view of another embodiment of the present invention.
【図２２】本発明の更に他の実施例の斜視図である。FIG. 22 is a perspective view of still another embodiment of the present invention.
【図２３】本発明の更に他の実施例の斜視図である。FIG. 23 is a perspective view of still another embodiment of the present invention.
【図２４】本発明の更に他の実施例の斜視図である。FIG. 24 is a perspective view of still another embodiment of the present invention.
１ 側面窓部 ２ チューブ ３ ワイヤー ４ 紐 ５ 案内筒 ６ 後部筒 1 Side window 2 Tube 3 Wire 4 String 5 Guide tube 6 Rear tube
Claims (3)
と、チューブ内に挿入されたワイヤーと、一端部が側面
窓部付近に固着され且つチューブに外嵌された人体に導
入すべき媒体に挿通して側面窓部においてワイヤーに巻
かれる紐とで構成される人体に媒体を導入する装置。1. A tube having a side window near the tip, a wire inserted into the tube, and a medium to be introduced into a human body having one end fixed near the side window and fitted onto the tube. A device for inserting a medium into a human body, which is formed by inserting a cord into a wire and winding the wire in a side window part.
て設けて成ることを特徴とする請求項１記載の人体に媒
体を導入する装置。2. An apparatus for introducing a medium into a human body according to claim 1, wherein a flexible guide tube is continuously provided at the tip of the tube.
を連続して設けると共にチューブの後端部に柔軟な長い
後部筒を連続して設けて成ることを特徴とする請求項１
記載の人体に媒体を導入する装置。3. A flexible short guide tube is continuously provided at the front end of the short tube, and a flexible long rear tube is continuously provided at the rear end of the tube.
A device for introducing a medium into the human body described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3014279A JPH066125B2 (en) | 1991-02-05 | 1991-02-05 | Device for introducing a medium into the human body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3014279A JPH066125B2 (en) | 1991-02-05 | 1991-02-05 | Device for introducing a medium into the human body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04322665A JPH04322665A (en) | 1992-11-12 |
| JPH066125B2 true JPH066125B2 (en) | 1994-01-26 |
Family
ID=11856655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3014279A Expired - Fee Related JPH066125B2 (en) | 1991-02-05 | 1991-02-05 | Device for introducing a medium into the human body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066125B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08207686A (en) * | 1994-10-20 | 1996-08-13 | Trw Inc | Safety device for car containing expansion type constrainingbody |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0680733B1 (en) * | 1993-08-20 | 2003-01-15 | Kanji Inoue | Implant and method of collapsing it |
| WO1996036297A1 (en) * | 1995-05-19 | 1996-11-21 | Kanji Inoue | Transplantation instrument, method of bending same and method of transplanting same |
| DE69732411T2 (en) * | 1996-06-20 | 2006-01-19 | Vascutek Ltd., Renfrewshire | Repair of body vessels by prostheses |
| US20040116997A1 (en) | 2002-09-20 | 2004-06-17 | Taylor Charles S. | Stent-graft with positioning anchor |
| US7101390B2 (en) * | 2003-05-27 | 2006-09-05 | Scimed Life Systems, Inc. | Staged deployment endograft |
| US8048145B2 (en) | 2004-07-22 | 2011-11-01 | Endologix, Inc. | Graft systems having filling structures supported by scaffolds and methods for their use |
| EP1903985A4 (en) | 2005-07-07 | 2010-04-28 | Nellix Inc | Systems and methods for endovascular aneurysm treatment |
| CA2721950A1 (en) * | 2008-04-25 | 2009-10-29 | Nellix, Inc. | Stent graft delivery system |
| CA2726596A1 (en) | 2008-06-04 | 2009-12-10 | Nellix, Inc. | Sealing apparatus and methods of use |
| US20110276078A1 (en) | 2009-12-30 | 2011-11-10 | Nellix, Inc. | Filling structure for a graft system and methods of use |
| EP2693980B1 (en) | 2011-04-06 | 2022-07-13 | Endologix LLC | System for endovascular aneurysm treatment |
| WO2014159093A1 (en) | 2013-03-14 | 2014-10-02 | Endologix, Inc. | Method for forming materials in situ within a medical device |
| JP7194446B2 (en) * | 2017-11-24 | 2022-12-22 | 有限会社Ptmc研究所 | Artificial blood vessel delivery device |
-
1991
- 1991-02-05 JP JP3014279A patent/JPH066125B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08207686A (en) * | 1994-10-20 | 1996-08-13 | Trw Inc | Safety device for car containing expansion type constrainingbody |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04322665A (en) | 1992-11-12 |
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