JP3204676B2 - Indwelling tube - Google Patents
Indwelling tubeInfo
- Publication number
- JP3204676B2 JP3204676B2 JP07120291A JP7120291A JP3204676B2 JP 3204676 B2 JP3204676 B2 JP 3204676B2 JP 07120291 A JP07120291 A JP 07120291A JP 7120291 A JP7120291 A JP 7120291A JP 3204676 B2 JP3204676 B2 JP 3204676B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- indwelling tube
- stenosis
- indwelling
- tubular portion
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば膵胆管等の体腔
内に生じた狭窄部に挿入留置され、胆汁等の体液の流通
を確保する留置チューブに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indwelling tube which is inserted and stuck in a stenosis in a body cavity such as a pancreatic bile duct to ensure the flow of bodily fluid such as bile.
【０００２】[0002]
【従来の技術】従来、この種の留置チューブは、両端が
開口した可撓性チューブから形成されており、可撓性チ
ューブの後端を押圧手段としてのプッシャーチューブで
押圧して狭窄部に挿入留置されるようになっている。し
かし、このような留置チューブは内視鏡を介して体腔内
に挿入された把持鉗子でチューブの後端を把持して狭窄
部から抜去する場合にチューブの後端を把持し難いとい
う問題があった。2. Description of the Related Art Conventionally, this kind of indwelling tube is formed of a flexible tube having both ends opened, and the rear end of the flexible tube is pressed by a pusher tube as a pressing means and inserted into a narrow portion. It is to be detained. However, such an indwelling tube has a problem that it is difficult to grasp the rear end of the tube when grasping the rear end of the tube with a grasping forceps inserted into a body cavity through an endoscope and removing the tube from the stenosis. Was.
【０００３】そこで、このような不具合を解決するため
に、チューブの後端部に把持鉗子の把持部が掛合可能な
先細状の引掛部を設けたものが実公昭６０−１３４８４
号公報に開示されている。In order to solve such a problem, there is provided a tube provided with a tapered hook at the rear end of the tube, to which the grip of the gripping forceps can be hooked.
No. 6,086,045.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな留置チューブではチューブの後端部に先細状の引掛
部があり、そのためにチューブの後端をプッシャーチュ
ーブで押圧することができないため、専用の特殊な押圧
手段を使用しなければならなかった。また、上述した留
置チューブでは膵胆管の狭窄部に留置したときに膵胆管
と十二指腸とが開通状態となる。このため、十二指腸か
ら各種の雑菌が膵胆管へ流れ込み、逆流感染を引き起こ
すおそれがあった。さらに、上述した留置チューブでは
造影剤を含む４弗化エチレン等で形成されているため、
チューブの内面に雑菌やコレステロール等が付着し、チ
ューブ内が閉塞されるという問題もあった。However, such an indwelling tube has a tapered hook at the rear end of the tube, which makes it impossible to press the rear end of the tube with a pusher tube. Special pressing means had to be used. In the above-mentioned indwelling tube, the pancreatic bile duct and the duodenum are opened when the indwelling tube is indwelled in a stenotic part of the pancreatic bile duct. For this reason, various germs may flow into the pancreatic bile duct from the duodenum and cause reflux infection. Furthermore, since the above-mentioned indwelling tube is made of tetrafluoroethylene or the like containing a contrast agent,
There is also a problem that bacteria and cholesterol adhere to the inner surface of the tube, and the inside of the tube is blocked.
【０００５】本発明は上記のような点に鑑みてなされた
ものであり、その目的は雑菌やコレステロール等の付着
によるチューブの閉塞を防止できるとともに、簡単な押
圧手段により狭窄部に挿入留置することができ、かつ逆
流感染が発生し難い留置チューブを提供しようとするも
のである。[0005] The present invention has been made in view of the above points, and an object of the present invention is to prevent a tube from being blocked by adhesion of various bacteria and cholesterol, and to insert and retain the tube in a stenosis by a simple pressing means. It is an object of the present invention to provide an indwelling tube which can be made and in which reflux infection hardly occurs.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、請求項１は、体腔内の狭窄部に挿入留置される筒状
部と、この筒状部の後端面の一部を帯状に後方に向けて
延出し、前記筒状部の中心軸に対して平行な面内で巻回
するように形成され 、前記筒状部を前記狭窄部から抜去
する際に把持鉗子によって把持される把持部とを具備し
てなることを特徴とする留置チューブにある。 請求項２
は、体腔内の狭窄部に挿入留置される筒状部と、この筒
状部の後端面の一部を帯状に後方に向けて延出し、前記
筒状部の中心軸に対して垂直な面内で巻回するように形
成され 、 前記筒状部を前記狭窄部から抜去する際に把持
鉗子によって把持される把持部とを具備してなることを
特徴とする留置チューブにある。 In order to solve the above-mentioned problems, a first aspect of the present invention is to form a tubular portion to be inserted and retained in a stenosis in a body cavity, and to form a part of a rear end surface of the tubular portion into a belt shape. and extending toward the rear, wound in a plane parallel to the central axis of the tubular portion
Is formed so as to, certain said tubular portion to indwelling tube, characterized by comprising; and a grip portion which is gripped by the grasping forceps when withdrawn from the stenosis. Claim 2
Is a tubular part inserted and detained in a stenosis part in a body cavity, and this tubular part
A part of the rear end face of the shape part extends rearward in a belt shape, and
Formed so that it is wound in a plane perpendicular to the center axis of the cylindrical part
It made, gripping the tubular portion at the time of removal from the constriction
And a gripper to be gripped by forceps.
The feature is the indwelling tube.
【０００７】[0007]
【作用】本発明では体液が流通する筒状部の内面を摩擦
抵抗の少ない内面とすることにより、筒状部の内面に雑
菌やコレステロール等が付着することがなく、雑菌やコ
レステロール等の付着によるチューブの閉塞を防止する
ことができる。また、筒状部の後端に筒状部を狭窄部か
ら抜去する際に把持鉗子に把持される把持部を筒状部の
後端面の少なくとも一部を残して筒状部の後端から軸方
向に延出して設けることにより、プッシャチューブを用
いて筒状部を狭窄部に挿入留置することができる。さら
に、例えば筒状部を膵胆管の狭窄部に留置したときに膵
胆管と十二指腸とが開通状態とならないので、十二指腸
から各種の雑菌が膵胆管へ流れ込むことがなく、逆流感
染を引き起こすことがない。According to the present invention, the inner surface of the cylindrical portion through which the body fluid flows has an inner surface with less frictional resistance, so that bacteria and cholesterol, etc. do not adhere to the inner surface of the cylindrical portion. Blockage of the tube can be prevented. Further, when the tubular portion is removed from the constriction at the rear end of the tubular portion, the grasping portion grasped by the grasping forceps is axially moved from the rear end of the tubular portion leaving at least a part of the rear end surface of the tubular portion. By extending in the direction, the tubular portion can be inserted and placed in the stenosis using the pusher tube. Furthermore, since the pancreatic bile duct and the duodenum do not become open when the tubular part is placed in the stenotic part of the pancreatic bile duct, various bacteria from the duodenum do not flow into the pancreatic bile duct and do not cause reflux infection. .
【０００８】[0008]
【実施例】以下、本発明の実施例を図面を参照して説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】図１は本発明の第１実施例に係る留置チュ
ーブの側面図で、図２はその断面図を示したものであ
る。図１及び図２において、１は留置チューブであり、
この留置チューブ１は体腔内の狭窄部に挿入留置される
筒状部２を備えている。この筒状部２は内層チューブ４
と外層チューブ５とからなり、内層チューブ４は摩擦抵
抗の小さい弗素系樹脂（例えばポリテトラフルオロエチ
レン）で形成されている。また、外層チューブ５はポリ
エチレン等の柔らかい合成樹脂から形成され、外層チュ
ーブ５の前端部近くには、サイドフラップ６，７が開閉
自在に形成されている。このサイドフラップ６，７は筒
状部２を狭窄部に留置するためのものであり、外層チュ
ーブ５の一部をＶ字状に切り込んで形成されている。FIG. 1 is a side view of an indwelling tube according to a first embodiment of the present invention, and FIG. 2 is a sectional view thereof. 1 and 2, reference numeral 1 denotes an indwelling tube;
The indwelling tube 1 has a tubular portion 2 inserted and indwelled in a stenosis in a body cavity. This tubular part 2 is an inner tube 4
And an outer tube 5. The inner tube 4 is made of a fluororesin (for example, polytetrafluoroethylene) having a small frictional resistance. The outer tube 5 is formed of a soft synthetic resin such as polyethylene, and side flaps 6 and 7 are formed near the front end of the outer tube 5 so as to be freely opened and closed. The side flaps 6 and 7 are for retaining the tubular portion 2 in the constricted portion, and are formed by cutting a part of the outer tube 5 into a V-shape.
【００１０】また、前記筒状部２の後端には把持部３が
筒状部２の後端面２ａの少なくとも一部を残して筒状部
２の後端から軸方向に延出して設けられている。この把
持部３は、筒状部２を狭窄部から引き抜く際に図示しな
い把持鉗子に把持されるものであり、例えば外層チュー
ブ５の後端部をその肉厚程度の厚さでかつ軸方向に一定
の幅で切り込むことにより形成されている。なお、筒状
部２の前端部は挿入し易いように先細りのテーパ部８と
なっている。Further, provided at the rear end of the tubular portion 2 extends from at least the rear end of the tubular portion 2 while leaving a portion of the gripping portion 3 rear end surface 2a of the tubular portion 2 in the axial direction Have been. The grip portion 3 is gripped by a grip forceps (not shown) when the tubular portion 2 is pulled out from the stenosis portion. For example, the rear end portion of the outer tube 5 has a thickness approximately equal to its thickness and is axially It is formed by cutting at a constant width. In addition, the front end of the cylindrical portion 2 has a tapered portion 8 which is tapered so as to be easily inserted.
【００１１】まず、図３に示すように内視鏡９の挿入部
９Ａ内に形成された鉗子チャンネルに可撓性を有する長
尺のガイドワイヤ１０を通しておき、このガイドワイヤ
１０を内視鏡９の挿入部９Ａと共に体腔内に挿入し、ガ
イドワイヤ１０の先端部１０ａを胆管１３内に導き、さ
らにガイドワイヤ１０の先端部１０ａを胆管１３内の狭
窄部１２に挿入する。そして、この状態で留置チューブ
１の後端つまり筒状部２の後端を図４に示す如くプッシ
ャーチューブ１１で押圧すると、図５に示すように留置
チューブ１がガイドワイヤ１０をガイドとして胆管１３
の狭窄部１２に挿入される。なお、このときプッシャー
チューブ１１の外径は留置チューブ１の外径より小さ
く、かつ留置チューブ１の内径よりも大きい方が好まし
い。First, as shown in FIG. 3, a flexible and long guide wire 10 is passed through a forceps channel formed in an insertion portion 9A of the endoscope 9, and the guide wire 10 is inserted into the endoscope 9. Of the guide wire 10 into the bile duct 13, and further, the distal end 10 a of the guide wire 10 is inserted into the stenosis 12 in the bile duct 13. Then, in this state, when the rear end of the indwelling tube 1, that is, the rear end of the cylindrical portion 2 is pressed by the pusher tube 11 as shown in FIG. 4, the indwelling tube 1 is guided by the guide wire 10 as shown in FIG.
Is inserted into the stenosis 12. At this time, the outer diameter of the pusher tube 11 is preferably smaller than the outer diameter of the indwelling tube 1 and larger than the inner diameter of the indwelling tube 1.
【００１２】このようにして留置チューブ１を胆管１３
の狭窄部１２に挿入したならば、次にガイドワイヤ１０
を胆管１３内から引き抜く。そうすると、留置チューブ
１はその前端部に設けられたサイドフラップ６，７によ
って狭窄部１２に留置される。Thus, the indwelling tube 1 is connected to the bile duct 13
Of the guide wire 10
From the bile duct 13. Then, the indwelling tube 1 is indwelled in the stenosis 12 by the side flaps 6 and 7 provided at the front end thereof.
【００１３】なお、留置チューブ１を体腔内に挿入する
際には、図５に示すように把持部３が十二指腸乳頭１４
の部分に位置するように筒状部２及び把持部３の長さを
適宜調整する必要がある。把持部３が十二指腸乳頭１４
の部分に位置することで胆管１３内の狭窄部１２に胆汁
の排出路を形成することができる。When the indwelling tube 1 is inserted into a body cavity, as shown in FIG.
It is necessary to appropriately adjust the lengths of the tubular portion 2 and the gripping portion 3 so as to be located at the position of. Gripper 3 is duodenal papilla 14
The bile drainage path can be formed in the stenosis part 12 in the bile duct 13 by being located in the portion.
【００１４】また、狭窄部１２に留置された留置チュー
ブ１を回収する場合は、図６に示すように体腔内に挿入
された内視鏡９の挿入部９Ａの先端から把持鉗子１５の
把持部１５ａを突出させ、この把持部１５ａで留置チュ
ーブ１の把持部３を把持する。そして、留置チューブ１
の筒状部２を狭窄部１２から引き抜き、留置チューブ１
を回収する。When the indwelling tube 1 indwelled in the stenosis 12 is to be collected, as shown in FIG. 6, the grasping portion of the grasping forceps 15 is inserted from the distal end of the insertion portion 9A of the endoscope 9 inserted into the body cavity. 15a is projected, and the grip portion 3 of the indwelling tube 1 is gripped by the grip portion 15a . And the indwelling tube 1
The tubular portion 2 is pulled out of the stenosis portion 12 and the indwelling tube 1 is removed.
Collect.
【００１５】上記のように構成される本実施例では、筒
状部２の内層チューブ４が摩擦抵抗の小さい弗素系樹脂
（例えばポリテトラフルオロエチレン）で形成されてい
るので、筒状部２の内面に細菌やコレステロール等が付
着し難く、また付着した場合でも剥離性（自己潤滑牲）
が良い。したがって、細菌やコレステロール等の付着に
よる留置チューブ１の閉塞を防止することができる。In this embodiment constructed as described above, the inner tube 4 of the cylindrical portion 2 is formed of a fluorine-based resin (for example, polytetrafluoroethylene) having a small frictional resistance. Bacteria, cholesterol, etc. hardly adhere to the inner surface, and even if adhered, peelability (self-lubricating)
Is good. Therefore, it is possible to prevent the indwelling tube 1 from being blocked due to adhesion of bacteria, cholesterol, and the like.
【００１６】また、筒状部２は造影剤を含むテフロンチ
ューブ単体の従来の留置チューブに比べ腰が弱く柔軟性
があるので、体腔内への留置は極めて容易であると共
に、内層チューブ４及び外層チューブ５の肉厚比を変え
ることによって留置チューブ１の可撓性を適宜調整する
ことができる。Further, since the tubular portion 2 has a lower stiffness and is more flexible than a conventional indwelling tube of a Teflon tube containing a contrast agent alone, it is extremely easy to indwell in a body cavity, and the inner tube 4 and the outer layer By changing the thickness ratio of the tube 5, the flexibility of the indwelling tube 1 can be appropriately adjusted.
【００１７】さらに、本実施例では外層チューブ５のみ
にサイドフラップ６，７が形成され、内層チューブ２に
はサイドフラップやサイドホールなどが形成されていな
いので、筒状部２の内面にバリ等が発生せず、バリ等に
細菌やコレステロール等が付着することもない。Further, in this embodiment, since the side flaps 6 and 7 are formed only in the outer tube 5 and the side flaps and side holes are not formed in the inner tube 2, burrs or the like are formed on the inner surface of the cylindrical portion 2. No germ is generated, and bacteria and cholesterol do not adhere to burrs and the like.
【００１８】また、上記実施例では筒状部２の後端に筒
状部２を狭窄部１２から抜去する際に把持鉗子１５に把
持される把持部３を筒状部２の後端面２ａの少なくとも
一部を残して筒状部２の後端から軸方向に延出して設け
られているので、筒状部２の後端面２ａをプッシャーチ
ューブ１１で押圧することができ、筒状部２を狭窄部１
２に挿入留置する場合に専用の特殊な押圧手段を使用す
る必要がない。In the above embodiment, when the tubular portion 2 is removed from the constriction 12 at the rear end of the tubular portion 2, the grasping portion 3 grasped by the grasping forceps 15 is attached to the rear end surface 2a of the tubular portion 2. Since at least a part thereof is provided so as to extend in the axial direction from the rear end of the cylindrical portion 2, the rear end surface 2a of the cylindrical portion 2 can be pressed by the pusher tube 11, and the cylindrical portion 2 can be pressed. Stenosis 1
There is no need to use a special special pressing means when inserting and placing in the 2.
【００１９】また、上記実施例では留置チューブ１が胆
管１３内に留置されるとき、把持部３を十二指腸乳頭１
４の部分に位置させることにより、胆管１３と十二指腸
とが大きく開通するようなことがなく、十二指腸の機能
を温存させながら狭窄部１２のドレナージを行うことが
できるので、十二指腸から胆管１３内に細菌が流れ込
み、逆流感染を引き起こすこともない。In the above embodiment, when the indwelling tube 1 is indwelled in the bile duct 13, the grasping part 3 is moved to the duodenal papilla 1.
By locating in the portion 4, the bile duct 13 and the duodenum do not open greatly, and the drainage of the stenosis 12 can be performed while preserving the function of the duodenum. Does not flow and does not cause reflux infection.
【００２０】図７は本発明の第２実施例に係る留置チュ
ーブの側面図であり、この実施例が図１に示した第１実
施例と異なる点は、筒状部２の後端に設けた把持部３の
先端部分を留置チューブ１の軸方向に平行な面内でうず
巻き状に形成した点であり、その他は第１実施例と同様
の構成である。FIG. 7 is a side view of an indwelling tube according to a second embodiment of the present invention. This embodiment differs from the first embodiment shown in FIG. The configuration is the same as that of the first embodiment except that the distal end portion of the gripping portion 3 is formed in a spiral shape in a plane parallel to the axial direction of the indwelling tube 1.
【００２１】図８は上記のように構成される留置チュー
ブ１を胆管１３内の狭窄部１２に留置した状態を示す図
であり、同図に示すように留置チューブ１の筒状部２を
狭窄部１２に留置すると、把持部３の先端部が十二指腸
乳頭１４に引っ掛かるので、留置チューブ１が胆管１３
内へ迷入するのを防止することができる。また、把持部
３によって十二指腸の壁面を傷付けるおそれもない。FIG. 8 is a view showing a state in which the indwelling tube 1 constructed as described above is indwelled in the stenosis portion 12 in the bile duct 13, and as shown in FIG. When the indwelling tube 1 is placed in the bile duct 13, the distal end of the grasping portion 3 is caught by the duodenal papilla 14.
It is possible to prevent the user from getting inside. Further, there is no possibility that the wall of the duodenum may be damaged by the gripping portion 3.
【００２２】図９は本発明の第３実施例に係る留置チュ
ーブの側面図であり、この留置チューブ１が第２実施例
と異なる点は把持部３の先端部が筒状部２の軸方向と垂
直な面内でうず巻き状に形成されている点である。FIG. 9 is a side view of an indwelling tube according to a third embodiment of the present invention. The indwelling tube 1 is different from the second embodiment in that the distal end of the grip portion 3 is in the axial direction of the cylindrical portion 2. Is formed in a spiral shape in a plane perpendicular to the vertical axis.
【００２３】このように把持部３の先端部を筒状部２の
軸方向と垂直な面内でうず巻き状に形成することによ
り、第２実施例と同様に留置チューブ１が胆管１３内へ
迷入するのを防止することができる。また、把持部３の
後端部が十二指腸乳頭１４から突出する量が少なくなる
ので、把持部３に胃からの食物が引っ掛かり、留置チュ
ーブ１が抜けてしまうのを防止できる。By forming the distal end portion of the grip portion 3 in a spiral shape in a plane perpendicular to the axial direction of the cylindrical portion 2 as described above, the indwelling tube 1 enters the bile duct 13 as in the second embodiment. Can be prevented. Further, since the amount by which the rear end of the grip portion 3 projects from the duodenal papilla 14 is reduced, it is possible to prevent food from the stomach from being caught on the grip portion 3 and the indwelling tube 1 from coming off.
【００２４】図１０は本発明の第４実施例に係る留置チ
ューブの側面図であり、この留置チューブ１が第１実施
例と異なる点は把持部を糸条部材１５で形成した点が異
なる。FIG. 10 is a side view of an indwelling tube according to a fourth embodiment of the present invention. This indwelling tube 1 is different from the first embodiment in that a grip portion is formed by a thread member 15.
【００２５】このように把持部を糸条部材１５で形成す
ることにより、筒状部２が胆管１３内の狭窄部１２に留
置される時、筒状部２を押圧するプッシャーチューブ１
１の手元側からプッシャーチューブ１１を通って糸条部
材１５のリング内に操作糸１６を通しておくことによ
り、例えば留置チューブ１を胆管１３内に押し込み過ぎ
たときに操作糸１６を操作することにより、留置チュー
ブ１の位置を調節することができる。操作糸１６はリン
グ状ではないので、留置チューブ１が理想的な位置にき
た時、プッシャーチューブ１１の手元側から引き抜くこ
とができる。By forming the gripping portion with the thread member 15 as described above, the pusher tube 1 that presses the cylindrical portion 2 when the cylindrical portion 2 is placed in the stenosis 12 in the bile duct 13.
By passing the operation thread 16 through the pusher tube 11 and into the ring of the thread member 15 from the hand side of the device 1, for example, by operating the operation thread 16 when the indwelling tube 1 is excessively pushed into the bile duct 13, The position of the indwelling tube 1 can be adjusted. Since the operation thread 16 is not ring-shaped, when the indwelling tube 1 comes to an ideal position, it can be pulled out from the hand side of the pusher tube 11.
【００２６】[0026]
【発明の効果】以上説明したように、請求項１の発明
は、体腔内の狭窄部に挿入留置される筒状部の後端面の
一部を帯状に後方に向けて延出し、前記筒状部の中心軸
に対して平行な面内で巻回するように形成され 、前記筒
状部を前記狭窄部から抜去する際に把持鉗子によって把
持される把持部とを具備している。請求項２の発明は、
前記筒状部の中心軸に対して垂直な面内で巻回するよう
に形成され 、 筒状部を狭窄部から抜去する際に把持鉗子
によって把持される把持部とを具備している。従って、
留置チューブは、例えば胆管内に筒状部を挿入留置する
のは筒状部のみで、把持部は胆管外に露出させるように
することにより、把持部を把持鉗子にて把持し易くなる
と共に、筒状部が十二指腸まではみ出さないので、十二
指腸から胆管内に体液等が逆流するという、所謂逆流汚
染現象が生じるおそれは全くない。さらに、筒状部の後
端面の一部を帯状に後方に向けて延出し、筒状部の中心
軸に対して平行または垂直な面内で巻回するように把持
部を形成しているので、筒状部の後端に他の部材を取り
付けるというような煩雑な製造過程を経る必要が無く、
例えば筒状部と把持部を一体的に成形したり、長めに形
成した筒状部の後部を一部だけ残して切り落とすとい
う、単純な製造過程を経るだけで所望の把持部を形成す
ることが可能となるという効果がある。As described in the foregoing, a first aspect of the invention, and extending toward the rear part of the rear end surface of the cylindrical portion inserted indwelling the stenosis in a body cavity in a strip, the tube Center axis
Are provided with a grip portion that is formed so as to wound a plane parallel, it is gripped by the grasping forceps of the tubular portion when removed from the stenosis against. The invention of claim 2 is
Wound around a plane perpendicular to the center axis of the cylindrical portion
It is formed on the gripping forceps when removing the cylindrical portion from the constriction
And a gripper gripped by the gripper. Therefore,
The indwelling tube is, for example, only inserting the tubular portion into the bile duct and placing it in the tubular portion, and the gripping portion is exposed outside the bile duct, so that the gripping portion is easily gripped with gripping forceps, Since the tubular portion does not protrude into the duodenum, there is no possibility that a so-called reflux contamination phenomenon in which body fluid or the like flows back from the duodenum into the bile duct. Further, a part of the rear end surface of the cylindrical portion extends rearward in a belt shape, and the center of the cylindrical portion is extended.
Grip to wind in a plane parallel or perpendicular to the axis
Because it forms a part, there is no need to go through a complicated manufacturing process such as attaching another member to the rear end of the cylindrical part,
For example, it is possible to form a desired gripping part only through a simple manufacturing process, in which a cylindrical part and a gripping part are integrally formed, or a rear part of a longer cylindrical part is cut off while leaving only a part thereof. There is an effect that it becomes possible.
【図１】本発明の第１実施例に係る留置チューブの側面
図。FIG. 1 is a side view of an indwelling tube according to a first embodiment of the present invention.
【図２】同チューブの内部構造を示す図。FIG. 2 is a diagram showing an internal structure of the tube.
【図３】同実施例に係る留置チューブを胆管内の狭窄部
に留置する場合の方法を説明するための説明図。FIG. 3 is an explanatory diagram for explaining a method when the indwelling tube according to the embodiment is indwelled in a stenosis in a bile duct.
【図４】図３のＡ部を示す詳細図。FIG. 4 is a detailed view showing a part A in FIG. 3;
【図５】同実施例に係る留置チューブを胆管内の狭窄部
に留置した状態を示す図。FIG. 5 is a view showing a state where the indwelling tube according to the embodiment is indwelled in a stenosis in a bile duct.
【図６】同実施例に係る留置チューブを胆管内の狭窄部
から抜去する場合の方法を説明するための説明図。FIG. 6 is an explanatory diagram for explaining a method for removing the indwelling tube according to the embodiment from a stenosis in a bile duct.
【図７】本発明の第２実施例に係る留置チューブの側面
図。FIG. 7 is a side view of an indwelling tube according to a second embodiment of the present invention.
【図８】同実施例に係る留置チューブの作用を説明する
ための説明図。FIG. 8 is an explanatory diagram for explaining the operation of the indwelling tube according to the embodiment.
【図９】本発明の第３実施例に係る留置チューブの側面
図。FIG. 9 is a side view of an indwelling tube according to a third embodiment of the present invention.
【図１０】本発明の第４実施例に係る留置チューブの側
面図。FIG. 10 is a side view of an indwelling tube according to a fourth embodiment of the present invention.
１…留置チューブ、２…筒状部、３…把持部、４…内層
チューブ、５…外層チューブ、６，７…サイドフラッ
プ。DESCRIPTION OF SYMBOLS 1 ... Indwelling tube, 2 ... Cylindrical part, 3 ... Grip part, 4 ... Inner tube, 5 ... Outer tube, 6, 7 ... Side flap.
Claims (2)
と、 この筒状部の後端面の一部を帯状に後方に向けて延出
し、前記筒状部の中心軸に対して平行な面内で巻回する
ように形成され 、前記筒状部を前記狭窄部から抜去する
際に把持鉗子によって把持される把持部と、 を具備してなることを特徴とする留置チューブ。1. A tubular portion to be inserted and placed in a stenosis in a body cavity, and a part of a rear end surface of the tubular portion extends rearward in a belt shape.
And wound in a plane parallel to the central axis of the cylindrical portion
It is formed so as indwelling tube, characterized in that said tubular portion formed by anda grip portion to be grasped by the grasping forceps when withdrawn from the stenosis.
と、 この筒状部の後端面の一部を帯状に後方に向けて延出
し、前記筒状部の中心軸に対して垂直な面内で巻回する
ように形成され 、 前記筒状部を前記狭窄部から抜去する
際に把持鉗子によって把持される把持部と、 を具備してなることを特徴とする 留置チューブ。2. A tubular portion inserted and placed in a stenosis in a body cavity, and a part of a rear end surface of the tubular portion extends rearward in a belt shape.
And wound in a plane perpendicular to the central axis of the cylindrical portion
Is formed so as to withdrawn the tubular portion from said narrowed portion
Indwelling tubes, characterized by comprising anda grip portion to be grasped by the grasping forceps when.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07120291A JP3204676B2 (en) | 1991-04-03 | 1991-04-03 | Indwelling tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07120291A JP3204676B2 (en) | 1991-04-03 | 1991-04-03 | Indwelling tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05220227A JPH05220227A (en) | 1993-08-31 |
| JP3204676B2 true JP3204676B2 (en) | 2001-09-04 |
Family
ID=13453855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07120291A Expired - Lifetime JP3204676B2 (en) | 1991-04-03 | 1991-04-03 | Indwelling tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3204676B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101982930B1 (en) * | 2017-09-19 | 2019-05-27 | 김선심 | Pendant for necklace with vibrating structure |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10392571T5 (en) * | 2002-04-30 | 2005-06-16 | Olympus Optical Co. Ltd. | Stent-positioning device |
| US7550002B2 (en) | 2002-04-30 | 2009-06-23 | Olympus Corporation | Stent delivery device |
| JPWO2003092783A1 (en) * | 2002-05-01 | 2005-09-08 | オリンパス株式会社 | Indwelling tube guide device |
| US8298276B2 (en) | 2007-12-03 | 2012-10-30 | Olympus Medical Systems Corp. | Stent delivery system, stent placement method, and stent attachment method |
| JP2010178869A (en) * | 2009-02-05 | 2010-08-19 | Fujifilm Corp | Drainage tube |
| JP4913251B1 (en) * | 2011-05-24 | 2012-04-11 | 株式会社カテックス | Stent delivery system |
-
1991
- 1991-04-03 JP JP07120291A patent/JP3204676B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101982930B1 (en) * | 2017-09-19 | 2019-05-27 | 김선심 | Pendant for necklace with vibrating structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05220227A (en) | 1993-08-31 |
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