JP2003275325A - Gastrostoma tube - Google Patents
Gastrostoma tubeInfo
- Publication number
- JP2003275325A JP2003275325A JP2002082564A JP2002082564A JP2003275325A JP 2003275325 A JP2003275325 A JP 2003275325A JP 2002082564 A JP2002082564 A JP 2002082564A JP 2002082564 A JP2002082564 A JP 2002082564A JP 2003275325 A JP2003275325 A JP 2003275325A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- intragastric
- fistula
- hole
- stomach
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0015—Gastrostomy feeding-tubes
Landscapes
- Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、胃瘻を介して胃内
に栄養物を送り込む際に使用される胃瘻チューブに関す
る。
【０００２】
【従来の技術】胃瘻チューブは、胃に形成された瘻孔に
チューブを挿入し、該チューブを介して胃内に栄養物を
送り込むものである。この種の胃瘻チューブ２０は、図
５に示すように、胃内２５に挿入される側のチューブ２
１の先端に、瘻孔２２よりも大径に形成された略椀状の
胃内固定部２３を備えている。該胃内固定部２３は、可
撓性を有する合成樹脂（例えばシリコン樹脂）によって
形成され、該胃内固定部２３の底部２４からその外方に
延びるようにチューブ２１が一体に連設されている。該
胃内固定部２３は瘻孔２２よりも大径に形成されている
ことによって、胃内２５に挿入されたときのチューブ２
１の不用意な抜け出しが防止される。
【０００３】しかしその反面、胃瘻チューブ２０の交換
等のために胃内２５から体外２６に向かって抜去する際
には、胃内固定部２３が、瘻孔２２から抜き取り容易と
なる形状に変形し難く、胃内固定部２３の抜き取り時の
抵抗が極めて大きいために患者の苦痛や瘻孔２２の損傷
が生じるおそれがある。
【０００４】
【発明が解決しようとする課題】かかる不都合を解消し
て、本発明は、胃内からの抜去時に瘻孔の通過抵抗を小
とすることができる胃瘻チューブを提供することを目的
とする。
【０００５】
【課題を解決するための手段】かかる目的を達成するた
めに、本発明は、瘻孔を介して先端が胃内に挿入される
可撓性を有するチューブと、該チューブの先端に一体に
設けられ胃内からのチューブの抜出を規制する可撓性を
有する胃内固定部とを備える胃瘻チューブにおいて、前
記胃内固定部は、前記チューブの外径よりも大径に開口
する略椀状に形成され、且つ該椀状の底部の外側に前記
チューブの先端が連接され、更に前記チューブとの連接
位置の一側方の近傍に貫通孔が形成されていることを特
徴とする。
【０００６】本発明の胃瘻チューブは、外方からチュー
ブを引っ張ることにより胃内から抜去される。該胃内固
定部は、その椀状の底部がチューブを介して引っ張られ
ることにより、瘻孔への侵入に伴って容易に変形する。
即ち、該胃内固定部の底部が瘻孔側から引っ張られる
と、該胃内固定部は、前記貫通孔が形成されている部分
の突っ張り力が他部より低いために、先ず該貫通孔側の
一部が内方に曲がり込む。このとき生じる振動がチュー
ブを介して施術者に伝達されるので、施術者は胃内固定
部が変形を開始したことを確認することができ、それに
よって力加減等の操作上好ましい感覚を得ることができ
る。また、該胃内固定部は該貫通孔側の一部が内方に曲
がり込むまでは、チューブを介して比較的強い引っ張り
力が必要であるため、不用意な抜け出しを防止すること
ができる。
【０００７】次いで、更に該胃内固定部の底部がチュー
ブを介して引っ張られて瘻孔を通過するとき、該胃内固
定部は、内方に曲がり込んだ貫通孔側の周壁の一部を周
壁の他部が包み込むように変形する。これにより、凹凸
の極めて少ない状態で細長く変形する。そして、該胃内
固定部は、貫通孔側の先端部の一部が内方に曲がり込ん
だ後には、殆ど抵抗なく瘻孔を通過するので、患者の苦
痛や瘻孔の損傷を軽減して円滑に抜去することができ
る。
【０００８】
【発明の実施の形態】本発明の一実施形態を図面に基づ
いて説明する。図１は本実施形態の胃瘻チューブの要部
を断面視した説明図、図２は胃内固定部の説明的正面
図、図３（ａ）乃至（ｃ）は胃瘻チューブの抜去時の状
態を示す説明図、図４は挿入補助部材の取り付け状態を
示す胃瘻チューブの説明的側面図である。
【０００９】本実施形態の胃瘻チューブ１は、図１に示
すように、チューブ２と、該チューブ２の先端に一体に
設けられた胃内固定部３とによって構成されている。チ
ューブ２と胃内固定部３とは可撓性を有する合成樹脂
（シリコン樹脂）によって形成されている。
【００１０】胃内固定部３は、その先端側の開口径がチ
ューブ２の外径よりも大径とされた略椀状に形成されて
いる。また、該胃内固定部３の底部４においては、その
外方に延びるように前記チューブ２が連接されている。
そして、該チューブ２の先端は、該胃内固定部３の底部
４から該胃内固定部３の内部に向けて開口する連通口５
を形成している。更に、図１及び図２に示すように、該
胃内固定部３には、前記チューブ２の連通口５の一側方
の近傍に位置する貫通孔６が形成されている。
【００１１】以上のように構成された胃瘻チューブ１
は、図３（ａ）に示す状態からチューブ２を体外７に向
かって引っ張ることにより、胃内８から抜去することが
できる。即ち、施術者が体外７からチューブを引っ張る
と、図３（ｂ）に示すように、胃内固定部３が瘻孔９へ
の侵入を開始する。このとき、チューブ２を介して引っ
張られた胃内固定部３の底部４側は、瘻孔９に沿った抜
け方向に引き延ばされ、該胃内固定部３が細長く変形し
始める。
【００１２】そして、該胃内固定部３が更にチューブ２
を介して引っ張られると、図３（ｃ）に示すように、先
ず、前記貫通孔６が形成されている位置の該胃内固定部
３の周壁１０の一部が内方に曲がり込む。即ち、該胃内
固定部３の周壁１０のうち、前記貫通孔６が形成されて
いる側の周壁１０の一部においては、該貫通孔６によっ
て撓み易くなっており、胃壁１１に当接した状態での突
っ張り力が他部より低いために、該貫通孔６側の周壁１
０の一部が最初に内方に曲がり込む。このように、該胃
内固定部３に貫通孔６が形成されていることによって、
チューブ２からの引っ張り力を常に貫通孔６側の周壁１
０の一部に集中させることができ、これによって、貫通
孔６側の周壁１０の一部を確実に最初に内方に曲がり込
ませることができる。そして更に、貫通孔６側の周壁１
０の一部が内方に曲がり込んだときに僅かな振動が生
じ、この振動がチューブ２を介して施術者に伝達される
ので、施術者は胃内固定部３が変形を開始したことを確
認することができる。これによって、施術者はチューブ
２に付与していた引っ張り力を少し緩める等の抜き取り
速度の調整を行なうことができる。
【００１３】その後、更にチューブ２が引っ張られて瘻
孔９を通過するときには、内方に曲がり込んだ貫通孔６
側の周壁１０の一部を周壁１０の他部が包み込むように
して胃内固定部３が収束変形する。これにより、胃内固
定部３は、凹凸の極めて少ない状態で外形が小さくなる
ので、殆ど抵抗なく瘻孔９を通過し、患者の苦痛や瘻孔
の損傷を軽減して円滑に抜去することができる。
【００１４】また、本実施形態における胃内固定部３
は、前記貫通孔６が設けられていることにより抜去時の
変形が確実に促されるものであるが、該貫通孔６は更
に、胃内固定部３を胃内８に挿入するときに、後述する
挿入補助部材１２の先端を係止させることができるよう
になっている。
【００１５】即ち、一例を挙げれば、図４に示すよう
に、挿入補助部材１２として、棒状に形成された柄部１
３の先端部に爪部１４を備えるものを採用したとき、先
ず、柄部１３の先端を貫通孔６に挿通して胃内固定部３
の周壁１０の内面側に臨ませ、爪部１４を貫通孔６から
外側に突出させて該貫通孔６に係止させる。そして、挿
入補助部材１２の先端を突き出すようにしてチューブ２
を後方に引っ張ることにより、瘻孔９（図３参照）に挿
通可能な形状に胃内固定部３を変形させることができ
る。胃内固定部３が胃内８に挿入された後には、挿入補
助部材１２を引き抜くことにより、図３（ａ）に示す状
態に胃内固定部３の形状が復元し、胃内からの不用意な
抜け出しが防止される。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gastrostoma tube used for feeding nutrients into the stomach through a gastrostoma. 2. Description of the Related Art A gastrostoma tube inserts a tube into a fistula formed in the stomach and feeds nutrients into the stomach through the tube. As shown in FIG. 5, this type of gastrostomy tube 20 is a tube 2 on the side inserted into the stomach 25.
At one end, a substantially bowl-shaped intragastric fixing part 23 having a larger diameter than the fistula 22 is provided. The intragastric fixation part 23 is formed of a flexible synthetic resin (for example, a silicone resin), and a tube 21 is integrally connected so as to extend outward from the bottom part 24 of the intragastric fixation part 23. I have. Since the intragastric fixing part 23 is formed to have a larger diameter than the fistula 22, the tube 2 when inserted into the stomach 25 is formed.
1 is prevented from inadvertently coming out. On the other hand, when the gastric fistula tube 20 is removed from the stomach 25 to the outside of the body 26 for replacement of the gastrostomy tube 20 or the like, the intragastric fixing part 23 is deformed into a shape that can be easily removed from the fistula 22. It is difficult and the resistance at the time of removing the intragastric fixation part 23 is extremely large, so that there is a possibility that the patient suffers or the fistula 22 is damaged. SUMMARY OF THE INVENTION An object of the present invention is to provide a gastrostomy tube capable of reducing the resistance to the passage of a fistula at the time of removal from the stomach. I do. In order to achieve the above object, the present invention provides a flexible tube whose tip is inserted into a stomach through a fistula, and an integrated tube with the tip of the tube. A gastric fistula tube provided with a flexible intragastric fixation portion that restricts withdrawal of the tube from the stomach, wherein the intragastric fixation portion opens to a diameter larger than the outer diameter of the tube. It is formed in a substantially bowl shape, and the tip of the tube is connected to the outside of the bottom of the bowl shape, and a through hole is formed near one side of the connection position with the tube. . The gastrostoma tube of the present invention is removed from the stomach by pulling the tube from the outside. The intragastric fixation part is easily deformed as it enters the fistula when its bowl-shaped bottom is pulled through a tube.
That is, when the bottom of the intragastric fixation portion is pulled from the fistula side, the intragastric fixation portion first has a lower tensile force at the portion where the through hole is formed than at the other portion. Some bend inward. The vibration generated at this time is transmitted to the practitioner via the tube, so that the practitioner can confirm that the intragastric fixation part has begun to deform, and thereby obtain a favorable operational feeling such as force adjustment. Can be. In addition, since the intragastric fixation part needs a relatively strong pulling force through the tube until a part of the through hole side is bent inward, it is possible to prevent accidental escape. Next, when the bottom of the intragastric fixation portion is pulled through the tube and passes through the fistula, the intragastric fixation portion is formed by partially indenting the inwardly curved peripheral wall on the side of the through hole. Deforms so that the other part wraps around. Thereby, it is elongated and deformed in a state where the unevenness is extremely small. Then, after a part of the distal end portion on the through-hole side is bent inward, the intragastric fixation portion passes through the fistula with little resistance, so that the patient's pain and damage to the fistula are reduced and smooth. Can be removed. An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a cross section of a main part of the gastrostoma tube of the present embodiment, FIG. 2 is an explanatory front view of an intragastric fixing part, and FIGS. FIG. 4 is an explanatory side view of the gastrostoma tube showing an attached state of the insertion assisting member. As shown in FIG. 1, the gastrostoma tube 1 of the present embodiment comprises a tube 2 and an intragastric fixing portion 3 integrally provided at a distal end of the tube 2. The tube 2 and the intragastric fixation part 3 are formed of a synthetic resin (silicone resin) having flexibility. The intragastric fixing part 3 is formed in a substantially bowl shape in which the opening diameter at the tip end side is larger than the outer diameter of the tube 2. The tube 2 is connected to the bottom part 4 of the intragastric fixation part 3 so as to extend outward.
The distal end of the tube 2 has a communication port 5 opening from the bottom 4 of the intragastric fixation part 3 toward the inside of the intragastric fixation part 3.
Is formed. Further, as shown in FIGS. 1 and 2, a through hole 6 is formed in the intragastric fixing part 3, which is located near one side of the communication port 5 of the tube 2. The gastrostoma tube 1 constructed as described above
Can be removed from the stomach 8 by pulling the tube 2 toward the outside 7 from the state shown in FIG. That is, when the practitioner pulls the tube from outside the body 7, the intragastric fixed part 3 starts to enter the fistula 9, as shown in FIG. At this time, the bottom part 4 side of the intragastric fixation part 3 pulled through the tube 2 is extended in the detaching direction along the fistula 9, and the intragastric fixation part 3 starts to be elongated. Then, the intragastric fixing part 3 further comprises a tube 2.
As shown in FIG. 3 (c), first, a part of the peripheral wall 10 of the intragastric fixation part 3 at the position where the through hole 6 is formed bends inward. That is, of the peripheral wall 10 of the intragastric fixation part 3, a part of the peripheral wall 10 on the side where the through-hole 6 is formed is easily bent by the through-hole 6 and abuts on the stomach wall 11. Since the tension force in the state is lower than that of the other parts, the peripheral wall 1 on the through hole 6 side
A part of 0 turns inward first. As described above, since the through-hole 6 is formed in the intragastric fixation part 3,
The pulling force from the tube 2 is always applied to the peripheral wall 1 on the through hole 6 side.
0, so that a part of the peripheral wall 10 on the side of the through hole 6 can be reliably bent inward first. Further, the peripheral wall 1 on the side of the through hole 6
When a part of 0 is bent inward, a slight vibration occurs, and this vibration is transmitted to the practitioner via the tube 2, so that the practitioner confirms that the intragastric fixation part 3 has begun to deform. You can check. Thereby, the practitioner can adjust the extraction speed such as slightly relaxing the pulling force applied to the tube 2. Thereafter, when the tube 2 is further pulled and passes through the fistula 9, the inwardly bent through hole 6 is bent.
The intragastric fixation part 3 converges and deforms so that a part of the peripheral wall 10 on the side is surrounded by the other part of the peripheral wall 10. As a result, since the outer shape of the intragastric fixation part 3 is reduced in a state where there are very few irregularities, it passes through the fistula 9 with almost no resistance, and it is possible to reduce pain and damage to the fistula and to smoothly remove the fistula. In addition, the gastric fixation part 3 in the present embodiment
Although the through-hole 6 is provided, the deformation at the time of removal is surely promoted by the provision of the through-hole 6, but the through-hole 6 is further described below when the intragastric fixing part 3 is inserted into the stomach 8. The distal end of the insertion assisting member 12 to be locked can be locked. That is, as an example, as shown in FIG. 4, as the insertion assisting member 12, the rod-shaped handle portion 1 is formed.
When a member having a claw portion 14 at the tip of the gasket 3 is adopted, first, the tip of the handle 13 is inserted into the through-hole 6 and
The claw portion 14 is made to protrude outward from the through hole 6 and is locked to the through hole 6. Then, the tube 2 is inserted so that the tip of the insertion assisting member 12 is protruded.
By pulling back, the intragastric fixation part 3 can be deformed into a shape that can be inserted into the fistula 9 (see FIG. 3). After the intragastric fixation part 3 has been inserted into the stomach 8, the shape of the intragastric fixation part 3 is restored to the state shown in FIG. Easy escape is prevented.
【図面の簡単な説明】
【図１】本発明の一実施形態の胃瘻チューブの要部を断
面視した説明図。
【図２】胃内固定部の説明的正面図。
【図３】胃瘻チューブの抜去時の状態を示す説明図。
【図４】挿入補助部材の取り付け状態を示す胃瘻チュー
ブの説明的側面図。
【図５】従来の胃瘻チューブの一部を示す説明的断面
図。
【符号の説明】
１…胃瘻チューブ、２…チューブ、３…胃内固定部、４
…底部、６…貫通孔、９…瘻孔。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view showing a cross section of a main part of a gastrostoma tube according to one embodiment of the present invention. FIG. 2 is an explanatory front view of the intragastric fixation part. FIG. 3 is an explanatory view showing a state at the time of removing the gastrostoma tube. FIG. 4 is an explanatory side view of the gastrostoma tube showing an attached state of the insertion assisting member. FIG. 5 is an explanatory sectional view showing a part of a conventional gastrostoma tube. [Description of Signs] 1 ... Gastrostomy tube, 2 ... Tube, 3 ... Fixation part in stomach, 4
... bottom, 6 ... through-hole, 9 ... fistula.
Claims (1)
性を有するチューブと、該チューブの先端に一体に設け
られ胃内からのチューブの抜出を規制する可撓性を有す
る胃内固定部とを備える胃瘻チューブにおいて、 前記胃内固定部は、前記チューブの外径よりも大径に開
口する略椀状に形成され、且つ該椀状の底部の外側に前
記チューブの先端が連接され、更に前記チューブとの連
接位置の一側方の近傍に貫通孔が形成されていることを
特徴とする胃瘻チューブ。Claims: 1. A flexible tube having a distal end inserted into a stomach through a fistula, and a tube provided integrally with the distal end of the tube to restrict extraction of the tube from the stomach. A gastric fistula tube having a flexible intragastric fixation portion, wherein the intragastric fixation portion is formed in a substantially bowl shape opening to a diameter larger than the outer diameter of the tube, and the bowl-like bottom portion A distal end of the tube is connected to the outside of the tube, and a through hole is formed near one side of a connecting position with the tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002082564A JP4551050B2 (en) | 2002-03-25 | 2002-03-25 | Gastrostomy tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002082564A JP4551050B2 (en) | 2002-03-25 | 2002-03-25 | Gastrostomy tube |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008207433A Division JP2008284389A (en) | 2008-08-11 | 2008-08-11 | Ostomy tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003275325A true JP2003275325A (en) | 2003-09-30 |
| JP4551050B2 JP4551050B2 (en) | 2010-09-22 |
Family
ID=29206741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002082564A Expired - Lifetime JP4551050B2 (en) | 2002-03-25 | 2002-03-25 | Gastrostomy tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4551050B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009125251A (en) * | 2007-11-22 | 2009-06-11 | Create Medic Co Ltd | Catheter and catheter kit |
| US8147454B2 (en) | 2004-04-30 | 2012-04-03 | Tyco Healthcare Group Lp | Gastrostomy tube extension device |
-
2002
- 2002-03-25 JP JP2002082564A patent/JP4551050B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8147454B2 (en) | 2004-04-30 | 2012-04-03 | Tyco Healthcare Group Lp | Gastrostomy tube extension device |
| EP2457552A1 (en) | 2004-04-30 | 2012-05-30 | Covidien AG | Gastrostomy tube extension device |
| US8622968B2 (en) | 2004-04-30 | 2014-01-07 | Covidien Lp | Gastrostomy tube extension device |
| JP2009125251A (en) * | 2007-11-22 | 2009-06-11 | Create Medic Co Ltd | Catheter and catheter kit |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4551050B2 (en) | 2010-09-22 |
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