JP2016049245A - Trans-gastrostomal jejunal tube - Google Patents

Trans-gastrostomal jejunal tube Download PDF

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JP2016049245A
JP2016049245A JP2014175905A JP2014175905A JP2016049245A JP 2016049245 A JP2016049245 A JP 2016049245A JP 2014175905 A JP2014175905 A JP 2014175905A JP 2014175905 A JP2014175905 A JP 2014175905A JP 2016049245 A JP2016049245 A JP 2016049245A
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catheter member
jejunal
tube
port
gastrostomy
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JP6410529B2 (en
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大輔 中川
Daisuke Nakagawa
大輔 中川
典久 上潟口
Norihisa Kamigatakuchi
典久 上潟口
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Abstract

PROBLEM TO BE SOLVED: To provide a trans-gastrostomal jejunal tube capable of reliably retaining a placement position of a distal end of a jejunal catheter by easily integrating a gastrostomal catheter member with a jejunal catheter member after insertion of the gastrostomal catheter member.SOLUTION: The trans-gastrostomal jejunal tube comprises a gastrostomal catheter member 2 and a jejunal catheter member 3. The gastrostomal catheter member 2 includes: a shaft 6 to be inserted into a gastrostoma; an intragastric locking part 7 to be locked to an inner wall of the stomach; and a body surface contact part 8 coming into contact with an abdominal wall outer surface. The jejunal catheter member 3 includes a tube body 4 placed into the jejunum through the shaft 6, and a medicinal solution port 5 for connecting a supply tube of a medicinal solution. The body surface contact part 8 includes a port fitting part 17 for fittingly fixing the medicinal solution port 5.SELECTED DRAWING: Figure 1

Description

本発明は、胃瘻から挿入して空腸内に留置させて経腸栄養液等の薬液を空腸内へ直接投与する経胃瘻的空腸チューブに関する。   The present invention relates to a gastrostomy jejunal tube that is inserted through a gastrostomy and placed in the jejunum and directly administers a chemical solution such as enteral nutrient solution into the jejunum.

従来、経腸栄養液等の薬液を空腸内へ直接投与する場合には、空腸カテーテルを胃瘻カテーテルから挿入して空腸内に留置させることが行われる(例えば、特許文献1参照)。   Conventionally, when a medicinal solution such as enteral nutrient solution is directly administered into the jejunum, a jejunal catheter is inserted through the gastrostomy catheter and placed in the jejunum (see, for example, Patent Document 1).

胃瘻カテーテルは、空腸カテーテルを通すチューブが腹壁及び胃壁を貫通する瘻孔に挿着して体外に延びており、瘻孔に位置するチューブの外面には、胃の内壁に係止される胃内係止部と腹壁外面に当接する体表当接部とが設けられている。これによれば、胃瘻カテーテルを胃瘻に留置させた状態で空腸カテーテルのみの交換が可能となる。   The gastrostomy catheter has a tube through which the jejunum catheter passes and is inserted into a fistula that penetrates the abdominal wall and the stomach wall, and extends outside the body. A stop portion and a body surface abutting portion that abuts on the outer surface of the abdominal wall are provided. According to this, only the jejunum catheter can be exchanged while the gastrostomy catheter is left in the gastrostomy.

しかし、例えば、特許文献1のものでは、空腸カテーテルを抜去しても胃瘻カテーテルの一部が体外に延出した状態になる(このタイプの胃瘻カテーテルはチューブ型と呼ばれている)。このため、患者にとって邪魔となり、不用意に或いは患者の意図により胃瘻カテーテルが抜去されるおそれがある。   However, in Patent Document 1, for example, even when the jejunum catheter is removed, a part of the gastrostomy catheter extends out of the body (this type of gastrostomy catheter is called a tube type). For this reason, there is a possibility that the gastrostomy catheter may be removed carelessly or by the patient's intention.

一方、ボタン型胃瘻カテーテルと呼ばれる胃瘻カテーテルを用いて空腸カテーテルを挿入することも行われている(例えば、特許文献2参照)。   On the other hand, a jejunal catheter is also inserted using a gastrostomy catheter called a button-type gastrostomy catheter (see, for example, Patent Document 2).

ボタン型胃瘻カテーテルは、胃瘻に挿通する中空のシャフト(短尺のチューブ)と、このシャフトの先端に設けられて胃の内壁に係止される胃内係止部と、シャフトの後端に設けられて腹壁外面に当接する体表当接部とを備えている。ボタン型胃瘻カテーテルは、体表当接部が体外に露出するが、体表当接部よりも外側にはシャフト(チューブ)の一部が延出していないので、患者にとって邪魔にならず、不用意な抜去も防止できる。   The button-type gastrostomy catheter has a hollow shaft (short tube) that is inserted into the gastrostomy, an intragastric locking portion that is provided at the tip of the shaft and is locked to the inner wall of the stomach, and a rear end of the shaft. A body surface abutting portion that is provided and abuts against the outer surface of the abdominal wall. The button-type gastrostomy catheter has a body surface contact portion exposed to the outside of the body, but a part of the shaft (tube) does not extend outside the body surface contact portion, so it does not disturb the patient, Inadvertent removal can also be prevented.

しかし、ボタン型胃瘻カテーテルを通して空腸カテーテルを空腸に留置させた状態では、空腸内への薬液が投与されていないときであっても、ボタン型胃瘻カテーテルを介して空腸カテーテルの一部が体外に延出した状態なる。このため、体外に延出する空腸カテーテルの一部が患者にとって邪魔となり、場合によっては、空腸カテーテルが抜去されたり、空腸カテーテルの先端が空腸内の最適な留置位置から移動してしまうおそれがある。   However, when the jejunum catheter is placed in the jejunum through the button-type gastrostomy catheter, a part of the jejunum catheter is removed from the body via the button-type gastrostomy catheter even when no medicinal solution is administered to the jejunum. It will be in the extended state. For this reason, a part of the jejunum catheter that extends outside the body may be an obstacle to the patient, and in some cases, the jejunum catheter may be removed or the tip of the jejunum catheter may move from the optimal placement position in the jejunum. .

特開平3−18378号公報(第6図)Japanese Patent Laid-Open No. 3-18378 (FIG. 6) 特開2007−167082号公報(第1図)Japanese Unexamined Patent Publication No. 2007-167082 (FIG. 1)

上記の点に鑑み、本発明は、胃瘻カテーテル部材と空腸カテーテル部材とを、空腸カテーテル部材の挿入後に容易に一体化することができて、空腸カテーテルの先端の留置位置を確実に維持することができる経胃瘻的空腸チューブを提供することを目的とする。   In view of the above points, the present invention can easily integrate the gastrostomy catheter member and the jejunal catheter member after insertion of the jejunal catheter member, and reliably maintain the indwelling position of the distal end of the jejunal catheter. An object of the present invention is to provide a transgastric jejunum tube that can be used.

本発明は、胃瘻カテーテル部材と、空腸カテーテル部材とからなる経胃瘻的空腸チューブであって、前記胃瘻カテーテル部材は、胃瘻に挿通する中空のシャフトと、該シャフトの先端に設けられて胃の内壁に係止される胃内係止部と、前記シャフトの後端に設けられて体表に当接する体表当接部とを備え、前記空腸カテーテル部材は、前記胃瘻カテーテル部材のシャフトに挿通されて先端が空腸内に留置されるチューブ本体と、薬液を供給する供給管を該チューブ本体に接続するための接続開口を有して該チューブ本体の後端に設けられた薬液ポート部とを備え、前記体表当接部は、前記薬液ポート部の少なくとも前記接続開口を露出させた状態で該薬液ポート部を着脱自在に嵌め込み固定するポート嵌合部を備えることを特徴とする。   The present invention relates to a transgastric jejunal tube comprising a gastrostomy catheter member and a jejunal catheter member, wherein the gastrostomy catheter member is provided at a distal end of the shaft and a hollow shaft that is inserted into the gastrostomy. A gastrostomy catheter member, and a gastric fistula catheter member comprising: a gastric fistula catheter member; A tube main body inserted through the shaft of the tube and having a distal end left in the jejunum, and a chemical solution provided at the rear end of the tube main body having a connection opening for connecting a supply pipe for supplying the chemical solution to the tube main body And the body surface contact portion includes a port fitting portion that detachably fits and fixes the chemical port portion in a state where at least the connection opening of the chemical port portion is exposed. To do.

本発明の経胃瘻的空腸チューブを使用するとき、先ず、腹壁及び胃壁を貫通する瘻孔に胃瘻カテーテル部材を挿入し留置させる。胃瘻カテーテル部材は、胃内係止部が胃の内壁に係止され、体表当接部が体表に当接して、瘻孔から抜け止めされる。胃瘻カテーテル部材は、シャフトの後端に体表当接部が設けられていることにより所謂ボタン型胃瘻カテーテルとして用いられるものである。なお、胃瘻カテーテル部材のシャフトの内径は、空腸カテーテル部材のチューブ本体が挿通自在となる寸法とされている。   When the transgastric jejunal tube of the present invention is used, first, a gastrostomy catheter member is inserted and placed in a fistula that penetrates the abdominal wall and stomach wall. In the gastrostomy catheter member, the intragastric locking part is locked to the inner wall of the stomach, and the body surface abutting part is brought into contact with the body surface to be prevented from coming out of the fistula. The gastrostomy catheter member is used as a so-called button-type gastrostomy catheter by providing a body surface contact portion at the rear end of the shaft. It should be noted that the inner diameter of the shaft of the gastrostomy catheter member is such that the tube body of the jejunal catheter member can be inserted.

次いで、胃瘻カテーテル部材のシャフトを通して空腸カテーテル部材のチューブ本体を空腸に挿入する。その後、空腸カテーテル部材の薬液ポート部を胃瘻カテーテル部材の体表当接部に設けたポート嵌合部に嵌め込み固定する。そして、体表当接部のポート嵌合部から露出する薬液ポート部の接続開口に薬液を供給する供給管を接続すれば、経腸栄養液等の薬液を空腸内へ直接投与することができる。   Next, the tube body of the jejunal catheter member is inserted into the jejunum through the shaft of the gastrostomy catheter member. Thereafter, the drug solution port portion of the jejunal catheter member is fitted into and fixed to the port fitting portion provided in the body surface contact portion of the gastrostomy catheter member. Then, if a supply pipe for supplying a chemical solution is connected to the connection opening of the chemical solution port portion exposed from the port fitting portion of the body surface contact portion, a chemical solution such as enteral nutrient solution can be directly administered into the jejunum. .

以上の構成により本発明の経胃瘻的空腸チューブは、空腸カテーテル部材の薬液ポート部が胃瘻カテーテル部材の体表当接部に固定され、薬液ポート部と体表当接部とがコンパクトに一体化される。これにより、薬液の供給管を薬液ポート部の接続開口から取り外せば、患者にとって邪魔になるチューブ類が体外に延出することがないので、空腸カテーテル部材が不用意に抜け出すことはなく、空腸カテーテルの先端の留置位置を確実に維持することができる。   With the above configuration, the transgastric jejunal tube of the present invention has the medicinal solution port portion of the jejunal catheter member fixed to the body surface abutting portion of the gastrostomy catheter member, and the medicinal solution port portion and the body surface abutting portion are compact. Integrated. As a result, if the supply pipe for the chemical solution is removed from the connection opening of the chemical solution port portion, the tubes that interfere with the patient will not extend out of the body, so that the jejunal catheter member will not accidentally come out, and the jejunal catheter The indwelling position of the tip of the can be reliably maintained.

また、本発明において、前記空腸カテーテル部材は、前記薬液ポートの前記接続開口を閉塞するキャップと、該キャップを前記薬液ポートの外周面の一部に連結するヒンジ部とを備え、前記ポート嵌合部は、前記薬液ポート部を嵌め込み固定したとき、前記ヒンジ部を介して前記キャップを前記ポート嵌合部の外側に露出させるスリットを備えることが好ましい。   In the present invention, the jejunal catheter member includes a cap that closes the connection opening of the drug solution port, and a hinge portion that connects the cap to a part of the outer peripheral surface of the drug solution port, and the port fitting Preferably, the portion includes a slit that exposes the cap to the outside of the port fitting portion via the hinge portion when the chemical liquid port portion is fitted and fixed.

空腸カテーテル部材の薬液ポートの接続開口は、薬液の供給管を接続していないとき、前記キャップにより閉塞する。このキャップは、ヒンジ部を介して薬液ポートの外周面に連結されているため、接続開口に薬液の供給管を接続しているときには、キャップの紛失が防止される。しかし、ポート嵌合部に薬液ポート部を嵌め込んだ際、薬液ポート部に連結されるヒンジ部やキャップがポート嵌合部に干渉すると、接続開口の円滑な開閉作業ができなくなるおそれがある。   The connection opening of the drug solution port of the jejunal catheter member is closed by the cap when the drug solution supply pipe is not connected. Since the cap is connected to the outer peripheral surface of the chemical liquid port via the hinge portion, the cap is prevented from being lost when the chemical liquid supply pipe is connected to the connection opening. However, when the chemical solution port part is fitted into the port fitting part, if the hinge part or the cap connected to the chemical solution port part interferes with the port fitting part, there is a possibility that the opening / closing operation of the connection opening cannot be smoothly performed.

そこで、ポート嵌合部にスリットを形成して、このスリットにヒンジ部を通してキャップをポート嵌合部の外側に露出させることで、接続開口の開閉作業を円滑に行えるようにすることができる。   Therefore, by forming a slit in the port fitting portion and exposing the cap to the outside of the port fitting portion through the hinge portion, the opening and closing operation of the connection opening can be performed smoothly.

また、本発明において、前記胃瘻カテーテル部材の前記胃内係止部は、細長く変形した状態で胃瘻に挿入され、胃内で復元拡開することにより胃の内壁に係止された状態となるバンパーであることが好ましい。   Further, in the present invention, the intragastric locking portion of the gastrostomy catheter member is inserted into the gastrostoma in an elongated and deformed state, and is locked to the inner wall of the stomach by being restored and expanded in the stomach. It is preferable that it is a bumper.

本発明の胃瘻カテーテル部材の胃内係止部として、上記構成のバンパー以外に、バルーンを採用することができる。バルーンは、収縮状態で胃内に挿入した後に内部に流体(蒸留水等)を導入して胃内で膨張させることにより、胃の内壁に係止させることができる。   As the intragastric locking portion of the gastrostomy catheter member of the present invention, a balloon can be adopted in addition to the bumper having the above configuration. The balloon can be locked to the inner wall of the stomach by being inserted into the stomach in a deflated state and then inflating in the stomach by introducing a fluid (distilled water or the like) therein.

バンパーとバルーンとを比較すると、バンパーは、バルーンのような流体の入れ替えが不要であり、破裂等が生じることもない。よって、本発明の胃瘻カテーテル部材の胃内係止部としては上記構成のバンパーを採用することが好ましく、これによって、耐久性の高い胃瘻カテーテル部材が得られ、胃瘻カテーテル部材の交換時期を長くして患者の負担を軽減することができる。   Comparing the bumper and the balloon, the bumper does not require a fluid replacement like the balloon, and does not cause rupture or the like. Therefore, it is preferable to employ the bumper having the above-described configuration as the intragastric locking portion of the gastrostomy catheter member of the present invention, whereby a highly durable gastrostomy catheter member can be obtained, and when the gastrostomy catheter member is replaced The burden on the patient can be reduced by lengthening the length.

本発明の実施形態の経胃瘻的空腸チューブを示す説明的側面図。The explanatory side view showing the transgastric jejunal tube of the embodiment of the present invention. 本実施形態の空腸カテーテル部材を示す斜視図。The perspective view which shows the jejunal catheter member of this embodiment. 本実施形態の胃瘻カテーテル部材を示す斜視図。The perspective view which shows the gastrostomy catheter member of this embodiment. バンパーの断面図。Sectional drawing of a bumper. 体表当接部の断面図。Sectional drawing of a body surface contact part. 本実施形態の経胃瘻的空腸チューブの取付作業を模式的に示す説明図。Explanatory drawing which shows typically the attachment operation | work of the transgastric jejunal tube of this embodiment. 胃瘻カテーテル部材の変形例を示す斜視図。The perspective view which shows the modification of a gastrostomy catheter member.

本発明の実施形態を図面に基づいて説明する。本実施形態の経胃瘻的空腸チューブ1は、図1〜図3に示すように、胃瘻カテーテル部材2と、空腸カテーテル部材3とによって構成されている。   Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the transgastric jejunal tube 1 of the present embodiment includes a gastrostomy catheter member 2 and a jejunal catheter member 3.

空腸カテーテル部材3は、図2に示すように、チューブ本体4と、薬液ポート部5とを備えている。胃瘻カテーテル部材2は、図3に示すように、中空のシャフト6と、バンパー7(胃内係止部)と、体表当接部8とを備えている。   As shown in FIG. 2, the jejunal catheter member 3 includes a tube body 4 and a drug solution port portion 5. As shown in FIG. 3, the gastrostomy catheter member 2 includes a hollow shaft 6, a bumper 7 (intragastric locking portion), and a body surface contact portion 8.

空腸カテーテル部材3の各部を詳細に説明すると、図2に示すように、薬液ポート部5は、チューブ本体4の後端(図において上端)に設けられている。チューブ本体4と薬液ポート部5とは可撓性を有する合成樹脂(好ましくはシリコーン樹脂)によって一体に形成されている。   If each part of the jejunal catheter member 3 is demonstrated in detail, as shown in FIG. 2, the chemical | medical solution port part 5 is provided in the rear end (upper end in the figure) of the tube main body 4. As shown in FIG. The tube body 4 and the chemical liquid port portion 5 are integrally formed of a flexible synthetic resin (preferably a silicone resin).

薬液ポート部5は、薬液を供給する供給管(図示しない)を接続するための接続開口9と、接続開口9の周壁から外方に張り出す平面視大略楕円形状のフランジ部10とを備えている。接続開口9は、チューブ本体4に連通しており、その内部には、図示しない弁体が設けられている。   The chemical liquid port portion 5 includes a connection opening 9 for connecting a supply pipe (not shown) for supplying a chemical liquid, and a flange portion 10 having a generally elliptical shape in plan view projecting outward from the peripheral wall of the connection opening 9. Yes. The connection opening 9 communicates with the tube body 4, and a valve body (not shown) is provided therein.

フランジ部10の一部には帯状のヒンジ部11を介してキャップ12が連結されている。キャップ12は板状の基体部12aから突出する栓部12bを備え、この栓部12bにより接続開口9を閉塞するようになっている。   A cap 12 is connected to a part of the flange portion 10 via a belt-like hinge portion 11. The cap 12 includes a plug portion 12b protruding from the plate-like base portion 12a, and the connection opening 9 is closed by the plug portion 12b.

胃瘻カテーテル部材2の各部を詳細に説明すると、図3に示すように、バンパー7(胃内係止部)は、シャフト6の先端(図において下端)に設けられ、体表当接部8は、シャフト6の後端(図において上端)に設けられている。シャフト6、バンパー7、及び体表当接部8は、可撓性を有する合成樹脂(好ましくはシリコーン樹脂)によって一体に形成されている。   Explaining in detail each part of the gastrostomy catheter member 2, as shown in FIG. 3, the bumper 7 (intragastric locking part) is provided at the tip (lower end in the figure) of the shaft 6, and the body surface contact part 8. Is provided at the rear end (upper end in the figure) of the shaft 6. The shaft 6, the bumper 7, and the body surface contact portion 8 are integrally formed of a synthetic resin having flexibility (preferably a silicone resin).

図4に示すように、バンパー7(胃内係止部)の周壁は椀状に形成され、その先端(図において下端)が開放されている。バンパー7の周壁の周方向一側の内面には、径方向内方に突出する突出部13が形成されており、突出部13にはバンパー7の径方向内方に開口する穴14が形成されている。この穴14には、図示しないオブチュレータのロッドが挿入される。また、バンパー7の周壁における穴14と対向する位置には、穴14にオブチュレータのロッドを挿入する際に当該ロッドとの干渉による周壁の過剰な変形を軽減するための切欠部15が形成されている。   As shown in FIG. 4, the peripheral wall of the bumper 7 (intragastric locking portion) is formed in a bowl shape, and its tip (lower end in the figure) is open. A projecting portion 13 projecting radially inward is formed on an inner surface of the circumferential wall of the bumper 7 on one side in the circumferential direction, and a hole 14 opening radially inward of the bumper 7 is formed in the projecting portion 13. ing. An obturator rod (not shown) is inserted into the hole 14. In addition, a notch 15 for reducing excessive deformation of the peripheral wall due to interference with the rod when the rod of the obturator is inserted into the hole 14 is formed at a position facing the hole 14 in the peripheral wall of the bumper 7. Yes.

バンパー7の外径は、シャフト6の外径よりも大きく形成されている。またバンパー7の中央部には、シャフト6と連通する連通口16が形成されている。シャフト6の内径は、空腸カテーテル部材3のチューブ本体4の外径よりも大きく形成されている。   The outer diameter of the bumper 7 is formed larger than the outer diameter of the shaft 6. A communication port 16 communicating with the shaft 6 is formed at the center of the bumper 7. The inner diameter of the shaft 6 is formed larger than the outer diameter of the tube body 4 of the jejunal catheter member 3.

体表当接部8は、図3に示すように、平面視大略楕円状に形成され、図5に示すように、患者の腹壁外面に当接する下面が、船底状に湾曲している。これにより、患者の腹壁外面との接触面を小として、患者の表皮への負担を軽減している。   As shown in FIG. 3, the body surface abutting portion 8 is formed in a substantially oval shape in plan view, and as shown in FIG. 5, the lower surface that abuts on the outer surface of the abdominal wall of the patient is curved in a ship bottom shape. Thereby, the contact surface with a patient's abdominal wall outer surface is made small, and the burden on a patient's epidermis is reduced.

体表当接部8の内部には、空腸カテーテル部材3の薬液ポート部5に対応する形状の空間であるポート嵌合部17が形成されている。ポート嵌合部17には、薬液ポート部5が嵌め込み固定される。   Inside the body surface contact portion 8, a port fitting portion 17 that is a space having a shape corresponding to the drug solution port portion 5 of the jejunal catheter member 3 is formed. The chemical solution port portion 5 is fitted and fixed to the port fitting portion 17.

ポート嵌合部17の後端(図において上端)は平坦に形成され、その中央部には薬液ポート部5の接続開口9を露出させる開口露出部18が形成されている。開口露出部18を包囲する平坦面部19は、ポート嵌合部17に収容した薬液ポート部5のフランジ部10に係止する。これにより、ポート嵌合部17は、薬液ポート部5を包み込んだ状態で薬液ポート部5を一体的に嵌合固定する。   The rear end (upper end in the figure) of the port fitting portion 17 is formed flat, and an opening exposed portion 18 for exposing the connection opening 9 of the chemical liquid port portion 5 is formed in the center portion thereof. The flat surface portion 19 surrounding the opening exposed portion 18 is engaged with the flange portion 10 of the chemical liquid port portion 5 accommodated in the port fitting portion 17. Thereby, the port fitting part 17 integrally fits and fixes the chemical liquid port part 5 in a state where the chemical liquid port part 5 is wrapped.

また、体表当接部8には、ポート嵌合部17から外方に貫通するスリット20が形成されている。このスリット20は、ポート嵌合部17に薬液ポート部5を嵌め込むとき、それに先立ってキャップ12及びヒンジ部11を通すものである。スリット20が形成されていることにより、ポート嵌合部17に薬液ポート部5を嵌め込んだ状態で、体表当接部8の外部にキャップ12を露出させることができる。   The body surface abutting portion 8 is formed with a slit 20 penetrating outward from the port fitting portion 17. The slit 20 allows the cap 12 and the hinge portion 11 to pass prior to fitting the chemical liquid port portion 5 into the port fitting portion 17. By forming the slit 20, the cap 12 can be exposed to the outside of the body surface contact portion 8 in a state where the chemical liquid port portion 5 is fitted in the port fitting portion 17.

以上の構成による経胃瘻的空腸チューブ1は、次のようにして患者に装着される。先ず、患者の腹部に形成されている瘻孔に、図示しないオブチュレータを用いて胃瘻カテーテル部材2を挿入する。   The transgastric jejunum tube 1 having the above configuration is attached to a patient as follows. First, the gastrostomy catheter member 2 is inserted into a fistula formed in the patient's abdomen using an obturator (not shown).

即ち、図示しないが、オブチュレータのロッドをバンパー7の穴14に挿入し、更にシャフト6を介して体表当接部8を後方に引っ張ることで、バンパー7を細長く変形させる。この状態でバンパー7を胃瘻に挿入し、オブチュレータのロッドを胃瘻から引き抜くと、バンパー7が胃内で復元拡開して胃瘻カテーテル部材2が胃の内壁に係止された状態となる。   That is, although not shown, the rod of the obturator is inserted into the hole 14 of the bumper 7, and the body surface abutting portion 8 is pulled backward via the shaft 6, so that the bumper 7 is elongated. When the bumper 7 is inserted into the gastrostoma in this state and the rod of the obturator is pulled out of the gastrostomy, the bumper 7 is restored and expanded in the stomach, and the gastrostomy catheter member 2 is locked to the inner wall of the stomach. .

これにより、図6(a)に示すように、胃瘻カテーテル部材2のシャフト6が腹壁wと胃壁xを貫通した状態で留置される。このとき、胃瘻カテーテル部材2の胃内係止部としてバンパー7を採用していることにより、例えば、胃内係止部として図示しないバルーンを採用した場合に比べて、耐久性が高く、胃瘻カテーテル部材2の交換時期も長い。   Thereby, as shown to Fig.6 (a), the shaft 6 of the gastrostoma catheter member 2 is detained in the state which penetrated the abdominal wall w and the stomach wall x. At this time, since the bumper 7 is employed as the intragastric locking portion of the gastrostomy catheter member 2, for example, the durability is higher than when a balloon (not shown) is employed as the intragastric locking portion. The replacement time of the catheter member 2 is also long.

次いで、図6(b)に示すように、胃瘻カテーテル部材2のシャフト6を介して、空腸カテーテル部材3のチューブ本体4を図外の空腸まで挿入する。なお、空腸カテーテル部材3のチューブ本体4の長さは、予め、胃瘻から空腸内部の所定位置までの距離に対応させてある。よって、空腸カテーテル部材3の薬液ポート部5が胃瘻カテーテル部材2の体表当接部8に当接するまで、空腸カテーテル部材3のチューブ本体4を挿入することで、空腸カテーテル部材3のチューブ本体4の先端部は空腸内に配置される。   Next, as shown in FIG. 6 (b), the tube body 4 of the jejunal catheter member 3 is inserted to the jejunum (not shown) through the shaft 6 of the gastrostomy catheter member 2. Note that the length of the tube body 4 of the jejunal catheter member 3 corresponds to the distance from the gastrostomy to a predetermined position inside the jejunum in advance. Therefore, the tube body 4 of the jejunal catheter member 3 is inserted by inserting the tube body 4 of the jejunal catheter member 3 until the drug solution port portion 5 of the jejunal catheter member 3 contacts the body surface contact portion 8 of the gastrostomy catheter member 2. The tip of 4 is placed in the jejunum.

そして、胃瘻カテーテル部材2の体表当接部8のポート嵌合部17に、空腸カテーテル部材3の薬液ポート部5を嵌め込むことにより、図6(c)に示すように、胃瘻カテーテル部材2と空腸カテーテル部材3とが一体化され、空腸カテーテル部材3のチューブ本体4が空腸の所定位置に挿入された状態が確実に維持される。しかも、体表当接部8に薬液ポート部5が収容された状態であることにより、患者の体外に露出する部分が極めてコンパクトとなり、不用意に抜去されることを防止することができる。   Then, by inserting the drug solution port part 5 of the jejunal catheter member 3 into the port fitting part 17 of the body surface contact part 8 of the gastrostomy catheter member 2, as shown in FIG. The member 2 and the jejunal catheter member 3 are integrated, and the state where the tube body 4 of the jejunal catheter member 3 is inserted into a predetermined position of the jejunum is reliably maintained. And since the chemical | medical solution port part 5 is the state accommodated in the body surface contact part 8, the part exposed out of a patient's body becomes very compact, and it can prevent that it removes carelessly.

なお、本実施形態における胃瘻カテーテル部材2は、図4に示すように、周壁が椀状に形成されたバンパー7を備えるが、本発明の胃瘻カテーテル部材はこれに限るものではなく、例えば、図7に変形例として示す他の胃瘻カテーテル部材21を用いることもできる。他の胃瘻カテーテル部材21が備える体表当接部22は、図4に示す胃瘻カテーテル部材2の体表当接部8と同様の構成を有している。一方、他の胃瘻カテーテル部材21が備えるバンパー23は、図7に示すように、中空のシャフト24の先端に設けた固定部25と、シャフト24に沿って上下に移動自在の移動部26とが帯状の複数の撓み連結部27により連結された構成を有する。そして、図4に示す胃瘻カテーテル部材2に替えて図7に示す他の胃瘻カテーテル部材21を採用しても同様の効果を得ることができる。   As shown in FIG. 4, the gastrostomy catheter member 2 in the present embodiment includes a bumper 7 having a peripheral wall formed in a bowl shape. However, the gastrostomy catheter member of the present invention is not limited to this, for example, Another gastrostomy catheter member 21 shown as a modification in FIG. 7 can also be used. The body surface contact portion 22 provided in the other gastrostomy catheter member 21 has the same configuration as the body surface contact portion 8 of the gastrostomy catheter member 2 shown in FIG. On the other hand, as shown in FIG. 7, the bumper 23 included in the other gastrostomy catheter member 21 includes a fixed portion 25 provided at the tip of the hollow shaft 24, and a moving portion 26 that can move up and down along the shaft 24. Are connected by a plurality of belt-like flexible connecting portions 27. The same effect can be obtained by employing another gastrostomy catheter member 21 shown in FIG. 7 instead of the gastrostomy catheter member 2 shown in FIG.

1…経胃瘻的空腸チューブ、2,21…胃瘻カテーテル部材、3…空腸カテーテル部材、4…チューブ本体、5…薬液ポート部、6,24…シャフト、7,23…バンパー(胃内係止部)、8,22…体表当接部、9…接続開口、11…ヒンジ部、12…キャップ、17…ポート嵌合部、20…スリット。   DESCRIPTION OF SYMBOLS 1 ... Transgastric jejunum tube, 2, 21 ... Gastrointestinal catheter member, 3 ... Jejunal catheter member, 4 ... Tube body, 5 ... Drug port part, 6, 24 ... Shaft, 7, 23 ... Bumper Stop part), 8, 22 ... Body surface contact part, 9 ... Connection opening, 11 ... Hinge part, 12 ... Cap, 17 ... Port fitting part, 20 ... Slit.

Claims (3)

胃瘻カテーテル部材と、空腸カテーテル部材とからなる経胃瘻的空腸チューブであって、
前記胃瘻カテーテル部材は、胃瘻に挿通する中空のシャフトと、該シャフトの先端に設けられて胃の内壁に係止される胃内係止部と、前記シャフトの後端に設けられて腹壁外面に当接する体表当接部とを備え、
前記空腸カテーテル部材は、前記胃瘻カテーテル部材のシャフトに挿通されて先端が空腸内に留置されるチューブ本体と、薬液を供給する供給管を該チューブ本体に接続するための接続開口を有して該チューブ本体の後端に設けられた薬液ポート部とを備え、
前記体表当接部は、前記薬液ポート部の少なくとも前記接続開口を露出させた状態で該薬液ポート部を着脱自在に嵌め込み固定するポート嵌合部を備えることを特徴とする経胃瘻的空腸チューブ。
A transgastric jejunal tube comprising a gastrostomy catheter member and a jejunal catheter member,
The gastrostomy catheter member includes a hollow shaft that is inserted into the gastrostoma, an intragastric locking portion that is provided at the distal end of the shaft and locked to the inner wall of the stomach, and an abdominal wall that is provided at the rear end of the shaft. A body surface contact portion that contacts the outer surface,
The jejunal catheter member has a tube main body that is inserted through the shaft of the gastrostomy catheter member and has a distal end indwelled in the jejunum, and a connection opening for connecting a supply pipe for supplying a drug solution to the tube main body. A chemical solution port provided at the rear end of the tube body,
The transgastric jejunum characterized in that the body surface abutting part includes a port fitting part that detachably fits and fixes the drug solution port part in a state where at least the connection opening of the drug solution port part is exposed. tube.
前記空腸カテーテル部材は、前記薬液ポートの前記接続開口を閉塞するキャップと、該キャップを前記薬液ポートの外周面の一部に連結するヒンジ部とを備え、
前記ポート嵌合部は、前記薬液ポート部を嵌め込み固定したとき、前記ヒンジ部を介して前記キャップを前記ポート嵌合部の外側に露出させるスリットを備えることを特徴とする請求項1記載の経胃瘻的空腸チューブ。
The jejunal catheter member includes a cap that closes the connection opening of the drug solution port, and a hinge portion that connects the cap to a part of the outer peripheral surface of the drug solution port,
The said port fitting part is provided with the slit which exposes the said cap to the outer side of the said port fitting part via the said hinge part, when the said chemical | medical solution port part is engage | inserted and fixed. Gastrojejunal tube.
前記胃瘻カテーテル部材の前記胃内係止部は、細長く変形した状態で胃瘻に挿入され、胃内で復元拡開することにより胃の内壁に係止された状態となるバンパーであることを特徴とする請求項1又は2記載の経胃瘻的空腸チューブ。   The intragastric locking portion of the gastrostomy catheter member is a bumper that is inserted into the gastrostomy in a slender and deformed state and is locked to the inner wall of the stomach by being restored and expanded in the stomach. The transgastric jejunum tube according to claim 1 or 2, characterized in that
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180064095A (en) * 2016-12-05 2018-06-14 인제대학교 산학협력단 Cannula displacement prevention apparatus for ventriculoperitoneal shunt

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JPH0318378A (en) * 1989-06-02 1991-01-25 Abbott Lab Tube for setting stomachic wax
JPH08229135A (en) * 1995-02-27 1996-09-10 Nippon Zeon Co Ltd Catheter set for anal fistula
JP2007167082A (en) * 2005-12-19 2007-07-05 Michiaki Kudo Guide instrument of in-vivo insertion tube via gastric fistula and instrument kit for changing percutaneous gastrostoma-tube to jejunum tube via gastric fistula
JP2008178473A (en) * 2007-01-23 2008-08-07 Top:Kk Button-type gastrostomy tube
JP2012192182A (en) * 2011-03-14 2012-10-11 C R Bard Inc Biased internal bolster for medical device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0318378A (en) * 1989-06-02 1991-01-25 Abbott Lab Tube for setting stomachic wax
JPH08229135A (en) * 1995-02-27 1996-09-10 Nippon Zeon Co Ltd Catheter set for anal fistula
JP2007167082A (en) * 2005-12-19 2007-07-05 Michiaki Kudo Guide instrument of in-vivo insertion tube via gastric fistula and instrument kit for changing percutaneous gastrostoma-tube to jejunum tube via gastric fistula
JP2008178473A (en) * 2007-01-23 2008-08-07 Top:Kk Button-type gastrostomy tube
JP2012192182A (en) * 2011-03-14 2012-10-11 C R Bard Inc Biased internal bolster for medical device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180064095A (en) * 2016-12-05 2018-06-14 인제대학교 산학협력단 Cannula displacement prevention apparatus for ventriculoperitoneal shunt
KR101996121B1 (en) * 2016-12-05 2019-07-03 인제대학교 산학협력단 Cannula displacement prevention apparatus for ventriculoperitoneal shunt

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