JP2008284389A - Ostomy tube - Google Patents

Ostomy tube Download PDF

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Publication number
JP2008284389A
JP2008284389A JP2008207433A JP2008207433A JP2008284389A JP 2008284389 A JP2008284389 A JP 2008284389A JP 2008207433 A JP2008207433 A JP 2008207433A JP 2008207433 A JP2008207433 A JP 2008207433A JP 2008284389 A JP2008284389 A JP 2008284389A
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tube
intragastric
hole
stomach
fistula
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Kazuhiro Ichikawa
和浩 市川
Atsushi Chiba
篤 千葉
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a gastrostoma tube, reducing passing resistance of an ostomy in extubation from a stomach. <P>SOLUTION: A gastric fixing part 3 inserted and indwelled in the stomach is provided at the tip of the tube 2. The gastric fixing part 3 is formed into a substantially bowl shape opened with a larger diameter than the outside diameter of the tube 2. The tip of the tube 2 is connected to the outside of the bottom 4 of the bowl-like gastric fixing part 3. A through hole 6 is provided in the vicinity of one side of a connecting position of the gastric fixing part 3 to the tube 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

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。   The present invention relates to a gastrostomy tube used when feeding nutrients into the stomach through the gastrostoma.

従来の技術Conventional technology

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21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21の不用意な抜け出しが防止される。   The gastrostomy tube is a tube in which a tube is inserted into a fistula formed in the stomach, and nutrients are fed into the stomach through the tube. As shown in FIG. 5, this type of gastrostomy tube 20 has a substantially rod-shaped intragastric fixing portion 23 formed at the tip of the tube 21 on the side inserted into the stomach 25 and having a diameter larger than that of the fistula 22. It has. The intragastric fixation portion 23 is formed of a flexible synthetic resin (for example, silicon resin), and the tube 21 is integrally connected so as to extend outward from the bottom 24 of the intragastric fixation portion 23. Yes. Since the intragastric fixing portion 23 is formed to have a diameter larger than that of the fistula 22, the tube 21 is prevented from being accidentally pulled out when inserted into the stomach 25.

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。   However, on the other hand, when the gastrostomy tube 20 is removed from the stomach 25 toward the outside of the body 26 for replacement or the like, the intragastric fixation portion 23 is difficult to be deformed into a shape that can be easily extracted from the fistula 22. Since the resistance at the time of extraction of the inner fixing part 23 is extremely large, there is a possibility that the patient suffers and the fistula 22 is damaged.

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。   An object of the present invention is to provide a gastrostomy tube that can reduce the passage resistance of the fistula when it is removed from the stomach.

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。   In order to achieve such an object, the present invention provides a flexible tube whose tip is inserted into the stomach through a fistula and a tube that is integrally provided at the tip of the tube and that is extracted from the stomach. A gastrostomy tube comprising a flexible intragastric fixing part for regulating, wherein the intragastric fixing part is formed in a substantially bowl-like shape having a larger diameter than the outer diameter of the tube, and The tip of the tube is connected to the outside of the bottom, and a through hole is formed near one side of the connection position with the tube.

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。   The gastrostomy 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 by pulling the bottom of the saddle shape through the tube. That is, when the bottom part of the intragastric fixing part is pulled from the fistula side, the intragastric fixing part first has a lower tensile force than the other part in the part where the through hole is formed. Some bend inward. Since the vibration generated at this time is transmitted to the practitioner via the tube, the practitioner can confirm that the intragastric fixation portion has started to deform, thereby obtaining a favorable feeling in operation such as force adjustment. Can do. Further, since the intragastric fixation portion requires a relatively strong pulling force through the tube until a part of the through-hole side is bent inward, it is possible to prevent inadvertent withdrawal.

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。   Next, when the bottom portion of the intragastric fixation portion is further pulled through the tube and passes through the fistula, the intragastric fixation portion is configured so that a part of the peripheral wall on the side of the through hole bent inward is part of the peripheral wall. Deforms to wrap. As a result, the film is deformed to be elongated with very little unevenness. The intragastric fixation portion passes through the fistula with almost no resistance after a part of the distal end portion on the through-hole side is bent inward, so that the patient's pain and fistula damage can be reduced smoothly. Can be extracted.

発明の実施の形態BEST MODE FOR CARRYING OUT THE INVENTION

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。   An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of the essential part of the gastrostomy tube of the present embodiment, FIG. 2 is an explanatory front view of the intragastric fixation part, and FIGS. 3A to 3C are views when the gastrostomy tube is removed. FIG. 4 is an explanatory side view of the gastrostomy tube showing the attachment state of the insertion assisting member.

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。   As shown in FIG. 1, the gastrostomy tube 1 of the present embodiment is configured by a tube 2 and an intragastric fixing portion 3 provided integrally at the distal end of the tube 2. The tube 2 and the intragastric fixation portion 3 are formed of flexible synthetic resin (silicon resin).

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。   The intragastric fixation portion 3 is formed in a substantially bowl shape in which the opening diameter on the distal end side is larger than the outer diameter of the tube 2. The tube 2 is connected to the bottom portion 4 of the intragastric fixing portion 3 so as to extend outward. The distal end of the tube 2 forms a communication port 5 that opens from the bottom 4 of the intragastric fixing portion 3 toward the inside of the intragastric fixing portion 3. Further, as shown in FIGS. 1 and 2, the intragastric fixation portion 3 is formed with a through hole 6 located near one side of the communication port 5 of the tube 2.

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。   The gastrostomy tube 1 configured 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 fixing part 3 starts to enter the fistula 9 as shown in FIG. At this time, the bottom 4 side of the intragastric fixing part 3 pulled through the tube 2 is stretched in the pulling direction along the fistula 9, and the intragastric fixing part 3 starts to be elongated.

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10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10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10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。   When the intragastric fixation portion 3 is further pulled through the tube 2, as shown in FIG. 3C, first, the peripheral wall of the intragastric fixation portion 3 at the position where the through hole 6 is formed. Part of 10 bends inward. That is, of the peripheral wall 10 of the intragastric fixing portion 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 is in contact with the stomach wall 11. Since the tension force in the state is lower than the other parts, a part of the peripheral wall 10 on the through hole 6 side is bent inward first. Thus, by forming the through-hole 6 in the intragastric fixing part 3, the pulling force from the tube 2 can always be concentrated on a part of the peripheral wall 10 on the through-hole 6 side, A part of the peripheral wall 10 on the through hole 6 side can be reliably bent inward first. Further, a slight vibration is generated when a part of the peripheral wall 10 on the through-hole 6 side is bent inward, and this vibration is transmitted to the practitioner via the tube 2. It can be confirmed that the part 3 has started to deform. Thus, the practitioner can adjust the extraction speed such as slightly loosening the pulling force applied to the tube 2.

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。   Thereafter, when the tube 2 is further pulled and passes through the fistula 9, the intragastric fixation part 3 converges so that the other part of the peripheral wall 10 wraps a part of the peripheral wall 10 on the side of the through hole 6 bent inwardly. Deform. Thereby, since the external shape of the intragastric fixation part 3 becomes small with very little unevenness, it can pass through the fistula 9 with almost no resistance, and can be removed smoothly with reduced patient pain and fistula damage.

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。   Moreover, although the intragastric fixation part 3 in this embodiment is surely urged to be deformed at the time of removal due to the provision of the through-hole 6, the through-hole 6 is further connected to the intragastric fixation part 3. Is inserted into the stomach 8, the distal end of an insertion assisting member 12 to be described later can be locked.

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13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。   That is, as an example, as shown in FIG. 4, when the insertion assisting member 12 having a claw portion 14 at the distal end portion of the handle portion 13 formed in a rod shape is first adopted, Is inserted into the through-hole 6 so as to face the inner surface side of the peripheral wall 10 of the intragastric fixation portion 3, and the nail portion 14 is protruded outward from the through-hole 6 to be locked in the through-hole 6. Then, by pulling the tube 2 backward so that the distal end of the insertion assisting member 12 protrudes, the intragastric fixing part 3 can be deformed into a shape that can be inserted into the fistula 9 (see FIG. 3). After the intragastric fixation portion 3 is inserted into the stomach 8, the insertion assisting member 12 is pulled out to restore the shape of the intragastric fixation portion 3 to the state shown in FIG. Prepared escape is prevented.

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。Explanatory drawing which carried out the cross sectional view of the principal part of the gastrostomy tube of one Embodiment of this invention. 胃内固定部の説明的正面図。An explanatory front view of an intragastric fixation part. 胃瘻チューブの抜去時の状態を示す説明図。Explanatory drawing which shows the state at the time of extraction of a gastrostomy tube. 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。The explanatory side view of the gastrostomy tube which shows the attachment state of an insertion auxiliary member. 従来の胃瘻チューブの一部を示す説明的断面図。Explanatory sectional drawing which shows a part of conventional gastrostomy tube.

符号の説明Explanation of symbols

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。   DESCRIPTION OF SYMBOLS 1 ... Gastrostomy tube, 2 ... Tube, 3 ... Gastric fixation part, 4 ... Bottom part, 6 ... Through-hole, 9 ... Fistula.

Claims (1)

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胃瘻チューブ。   A flexible tube whose distal end is inserted into the stomach via a fistula, and a flexible intragastric fixing portion that is integrally provided at the distal end of the tube and restricts the extraction of the tube from the stomach; In the gastrostomy tube comprising the gastrostomy tube, the intragastric fixation portion is formed in a substantially bowl shape that opens to a diameter larger than the outer diameter of the tube, and the tip of the tube is connected to the outside of the bottom of the bowl shape, Further, a gastrostomy tube characterized in that a through hole is formed in the vicinity of one side of the connection position with the tube.
JP2008207433A 2008-08-11 2008-08-11 Ostomy tube Pending JP2008284389A (en)

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JP2002082564A Division JP4551050B2 (en) 2002-03-25 2002-03-25 Gastrostomy tube

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04303461A (en) * 1991-01-28 1992-10-27 Abbott Lab Gastrostomic formation tube
US5720734A (en) * 1994-02-28 1998-02-24 Wilson-Cook Medical, Inc. Gastrostomy feeding ports
JPH11332995A (en) * 1998-05-12 1999-12-07 Novartis Nutrition Ag Flexible holding bolster for ostomy tube for stomach and others
JP2003180841A (en) * 2001-12-13 2003-07-02 Jiro Kanie Catheter kit for gastrostomy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04303461A (en) * 1991-01-28 1992-10-27 Abbott Lab Gastrostomic formation tube
US5720734A (en) * 1994-02-28 1998-02-24 Wilson-Cook Medical, Inc. Gastrostomy feeding ports
JPH11332995A (en) * 1998-05-12 1999-12-07 Novartis Nutrition Ag Flexible holding bolster for ostomy tube for stomach and others
JP2003180841A (en) * 2001-12-13 2003-07-02 Jiro Kanie Catheter kit for gastrostomy

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