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JP2514033Y2 - Stent - Google Patents

Stent

Info

Publication number
JP2514033Y2
JP2514033Y2JP40448290UJP40448290UJP2514033Y2JP 2514033 Y2JP2514033 Y2JP 2514033Y2JP 40448290 UJP40448290 UJP 40448290UJP 40448290 UJP40448290 UJP 40448290UJP 2514033 Y2JP2514033 Y2JP 2514033Y2
Authority
JP
Japan
Prior art keywords
stent
rigid
rigid wire
lumen
present
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP40448290U
Other languages
Japanese (ja)
Other versions
JPH0492207U (en
Inventor
年夫 児島
Original Assignee
株式会社長田中央研究所
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 株式会社長田中央研究所filedCritical株式会社長田中央研究所
Priority to JP40448290UpriorityCriticalpatent/JP2514033Y2/en
Publication of JPH0492207UpublicationCriticalpatent/JPH0492207U/ja
Application grantedgrantedCritical
Publication of JP2514033Y2publicationCriticalpatent/JP2514033Y2/en
Anticipated expirationlegal-statusCritical
Expired - Fee Relatedlegal-statusCriticalCurrent

Links

Description

Translated fromJapanese
【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【技術分野】本考案は、ステント、より詳細には、身体
の内腔を開口保持するために用いる用具に関する。
TECHNICAL FIELD The present invention relates to a stent, and more particularly, to a device used to hold a body lumen open.

【0002】[0002]

【従来技術】ステントは、従来、皮膚の移植時に身体の
開口部又は内腔を開口保持するために用いるものである
が、最近では、収縮しやすい内腔の交通性を確保するた
めに用いられるようになり、具体的には、血管狭窄の治
療や血管閉塞の解除に有効なことが分ってきた。
2. Description of the Related Art A stent is conventionally used to hold an opening or a lumen in a body at the time of skin transplantation. However, recently, a stent is used to secure traffic in an easily contractible lumen. Specifically, it has been found that it is effective in treating vascular stenosis and releasing vascular occlusion.

【0003】[0003]

【目的】本考案は、上述のごときステントを提供するこ
とを目的としてなされたもので、特に、製作が簡単で、
かつ、使いやすいステントを提供することを目的として
なされたものである。
[Purpose] The present invention has been made for the purpose of providing a stent as described above, and is particularly easy to manufacture,
In addition, the purpose is to provide a stent that is easy to use.

【0004】[0004]

【構成】本考案によるステントは、単一の剛線が数回折
り返され、かつ、該剛線の両終端部が接合されて筒状に
構成され、各折り返し部が略円弧状に形成され、この円
弧状部にばね作用を持たせたことを特徴としたものであ
る。以下、本考案によるステントの一実施例について説
明する。
According to the stent of the present invention, a single rigid wire is folded back several times, and both ends of the rigid wire are joined to form a tubular shape, and each folded portion is formed in a substantially arc shape. This arc-shaped portion is characterized by having a spring action. An embodiment of the stent according to the present invention will be described below.

【0005】図1は、本考案によるステントの一実施例
を説明するための斜視図で、本考案によるステント10
は、単一の剛線例えばスランレスワイヤー1から成り、
該剛線1が何回か折り返され形成され、その端部が相互
に連結固着2されている。図2は、ステント10に構成
する前の剛線1の状態を示す図で、剛線1は、同図に示
すように、何回か折り返されて形成され、その両端
2′,2′が図1に2にて示したように連結固着されて
構成される。而して、本考案においては、剛線1は各折
り返し部3において略円形に折り返され、この部分にお
いてばね力が付される。従って、両端部2′,2′を連
結して、図1に示すように、筒状に構成した時は、該筒
状の半径Rを最大に保持するようにばね力が作用する。
従って、これを、半径がRより小さい内腔に挿入し、該
内腔内に保持すれば、該内腔は該ステント10のばね力
によって開口され、該内腔は交通可能となり、該ステン
トを、例えば、食道内に挿入した時は、該円筒内を通し
て食料又は飲料が胃に供給される。
FIG. 1 is a perspective view for explaining an embodiment of a stent according to the present invention. A stent 10 according to the present invention is shown.
Consists of a single rigid wire, for example a slantless wire 1,
The rigid wire 1 is formed by folding back several times, and its ends are connected and fixed to each other 2. FIG. 2 is a diagram showing a state of the rigid wire 1 before being formed into the stent 10. The rigid wire 1 is formed by being folded several times as shown in the figure, and both ends 2 ′, 2 ′ thereof are formed. As shown by 2 in FIG. 1, it is configured by connecting and fixing. Thus, in the present invention, the rigid wire 1 is folded back in a substantially circular shape at each folding portion 3, and a spring force is applied at this portion. Therefore, when the two end portions 2 ', 2'are connected to each other to form a tubular shape as shown in FIG. 1, a spring force acts so as to keep the tubular radius R at the maximum.
Therefore, if it is inserted into a lumen having a radius smaller than R and held in the lumen, the lumen is opened by the spring force of the stent 10, and the lumen becomes communicable, so that the stent is opened. , For example, when inserted into the esophagus, food or beverage is delivered to the stomach through the cylinder.

【0006】ステント10の半径Rは、該ステントを使
用する内腔の太さ及びその狭窄力によって異なるが、こ
れは、折り返し部3の数、又は、図2に示したように、
円筒状にする前の長さL0(L0=2πR)より求めるこ
とができ、所望の長さL0が決まったところで折り折し
部の略中央で切断し、その両端2′,2′を連結して所
望の半径の円筒状体とする。ステント10の長さLは、
予め決められており、それより長いものが必要な時は、
これらを2個、3個と縦列にして使用する。
[0006] The radius R of the stent 10 depends on the thickness of the lumen used for the stent and its stenosis force. This depends on the number of folded portions 3 or, as shown in FIG.
It can be obtained from the length L0 (L0 = 2πR) before being formed into a cylindrical shape, and when the desired length L0 is determined, it is cut at approximately the center of the folded portion and both ends 2 ′, 2 ′ thereof are cut. To form a cylindrical body having a desired radius. The length L of the stent 10 is
It is predetermined and when you need something longer than that,
These are used in two and three columns.

【0007】上述のごときステント10を内腔内、例え
ば、食道内に入れるには、可撓性のチューブの先端に該
ステント10を挿入しておき、このチューブを食道に挿
入し、該ステント10を留置しておく位置(食道の狭窄
位置)まで挿入し、次いで、前記チューブ内に例えば、
該チューブの内径に略等しい外径(先端部のみでもよ
い)の可撓性の剛体を挿入し、該剛体の先端でステント
を押えて前記チューブを引き抜けば、ステントはその位
置に残留し、所望の位置にステントを置くことができ
る。
In order to insert the stent 10 as described above into the lumen, for example, the esophagus, the stent 10 is inserted into the tip of a flexible tube, the tube is inserted into the esophagus, and the stent 10 is inserted. Is inserted up to the position for indwelling (the stricture position of the esophagus), and then in the tube, for example,
If a flexible rigid body having an outer diameter substantially equal to the inner diameter of the tube (may be only the tip end portion) is inserted, and the tube is pulled out by pressing the stent with the tip end of the rigid body, the stent remains at that position, The stent can be placed at the desired location.

【0008】而して、本考案によるステント10は、折
り返し部3が略円形に形成されているので、この部分の
半径方向の長さ成分が比較的大きくなり、前述のように
して、チューブ内に可撓性の剛体を挿入する時、その径
を細くすることができ、或いは、該剛体の先端をステン
トの端部(折り返し部)に容易に当てることができ、非
常に操作しやすい。
Thus, in the stent 10 according to the present invention, since the folded portion 3 is formed in a substantially circular shape, the length component in the radial direction of this portion becomes relatively large, and as described above, When a flexible rigid body is inserted into the stent, its diameter can be reduced, or the tip of the rigid body can be easily applied to the end (folded portion) of the stent, which is very easy to operate.

【0009】図3は、上述のごときステントを作る場合
の一例を示す図で、例えば、図示のように、所定の円隔
(ステントの長さLを考慮した長さ)をもって2本の円
柱20,20の上下を枠部材21,21にて固定し、図
示のように、円柱20,20間に剛線1を8の字状に堅
固に巻きつけ、その両端部を円柱20に固定する。その
後、このようにして剛線1が巻囲された枠体の開口部、
つまり剛線1が巻囲されている部分(図3に鎖線31に
て示した部分)に、万力30の面を当て、万力30を締
めつけると、図4及び図5に示すようになり、円柱20
によって折り返し部3が形成された、図2に示したよう
な、剛線1が得られる。この剛線1を前述のようにし
て、円筒形にして、図1に示したような、ステント10
を作成する。
FIG. 3 is a diagram showing an example of making the above-mentioned stent. For example, as shown in the figure, two cylinders 20 are arranged at a predetermined interval (a length considering the length L of the stent). , 20 are fixed by frame members 21 and 21, and as shown in the drawing, the rigid wire 1 is tightly wound between the columns 20 and 20 in a figure 8 shape, and both ends thereof are fixed to the column 20. After that, the opening of the frame body around which the rigid wire 1 is wound in this way,
That is, when the surface of the vise 30 is applied to the portion around the rigid wire 1 (the portion indicated by the chain line 31 in FIG. 3) and the vise 30 is tightened, the results are as shown in FIGS. 4 and 5. , Column 20
The rigid line 1 as shown in FIG. 2 in which the folded-back portion 3 is formed is obtained. The rigid wire 1 is made into a cylindrical shape as described above, and the stent 10 as shown in FIG.
Create

【0010】[0010]

【効果】以上の説明から明らかなように、本考案による
と、比較的簡単に作成することができ、しかも、使いや
すいステントを提供することができる。
As is apparent from the above description, according to the present invention, it is possible to provide a stent which can be produced relatively easily and is easy to use.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案によるステントの一実施例を説明するた
めの図である。
FIG. 1 is a view for explaining an embodiment of a stent according to the present invention.

【図2】図1に示したステントを作る前の剛線の状態を
示す図である。
FIG. 2 is a diagram showing a state of a rigid wire before making the stent shown in FIG.

【図3】本考案によるステントを作成するための工程の
一部を示す図である。
FIG. 3 is a view showing a part of a process for producing a stent according to the present invention.

【図4】図3に示した工程の次の工程を示す図である。FIG. 4 is a diagram showing a step subsequent to the step shown in FIG.

【図5】図4に示した工程の次の工程を示す図である。FIG. 5 is a view showing a step subsequent to the step shown in FIG. 4;

【符号の説明】[Explanation of symbols]

1 剛線 2 剛線の端部接続部 2′剛線の端部 3 剛線の折り返し部 10 ステント 20 円柱 21 保持枠 30 万力 1 Rigid line 2 End part of rigid line 2'End of rigid line 3 Folded part of rigid line 10 Stent 20 Column 21 Holding frame 300,000 force

Claims (1)

Translated fromJapanese
(57)【実用新案登録請求の範囲】(57) [Scope of utility model registration request]【請求項1】 単一の剛線が数回折り返され、かつ、該
剛線の両終端部が接合されて筒状に構成されたステント
であって、該ステントは、各折り返し部が略円弧状に形
成され、該円弧状部にばね作用を持たせたことを特徴と
するステント。
1. A stent in which a single rigid wire is bent several times and both ends of the rigid wire are joined together to form a tubular shape, in which each folded portion is substantially circular. A stent, which is formed in an arc shape and has a spring action in the arc portion.
JP40448290U1990-12-251990-12-25 StentExpired - Fee RelatedJP2514033Y2 (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP40448290UJP2514033Y2 (en)1990-12-251990-12-25 Stent

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP40448290UJP2514033Y2 (en)1990-12-251990-12-25 Stent

Publications (2)

Publication NumberPublication Date
JPH0492207U JPH0492207U (en)1992-08-11
JP2514033Y2true JP2514033Y2 (en)1996-10-16

Family

ID=31882099

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP40448290UExpired - Fee RelatedJP2514033Y2 (en)1990-12-251990-12-25 Stent

Country Status (1)

CountryLink
JP (1)JP2514033Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
EP2144660A4 (en)*2007-04-092016-05-04Creative Surgical Llc FRAME DEVICE

Also Published As

Publication numberPublication date
JPH0492207U (en)1992-08-11

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