JP2015198847A - Insertion aid for gastrostomy tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insertion acid for a gastrostomy tube capable of surely maintaining a preferable holding state of a bumper part, without providing a reinforcement member on the bumper part, and capable of making insertion operation of the gastrostomy tube into a gastrostomy extremely smoothly.SOLUTION: An insertion acid for a gastrostomy tube comprises a holding rod 2 for holding a bowl-shaped bumper part 11 disposed on a gastrostomy tube 9 on a front end part, and an extending rod 6 extending forward of the bumper part 11 held by the holding rod 2. The extending rod 6 is coupled to one side of the holding rod via a connection member 5.

Description

  The present invention relates to a gastrostomy tube insertion aid used when a gastrostomy tube for feeding nutrients into the stomach is inserted into the gastrostomy.

  The gastrostomy tube includes a tube main body whose tip is inserted into the stomach via the gastrostoma and a saddle-like bumper portion that is placed in the stomach. When inserting such a gastrostomy tube into the stomach via the gastrostomy, generally an insertion assisting tool for gastrostomy tube is used.

  This type of gastrostomy tube insertion aid includes a stainless steel holding rod and a synthetic resin locking member attached to the distal end of the stainless steel holding rod. There has been proposed one that includes an extended portion that is extended and a step portion that has a larger diameter than the extended portion (see Patent Document 1 below).

  When using this gastrostomy tube insertion assisting tool, first, the distal end of the holding rod is locked at one place in the circumferential direction of the bumper portion of the gastrostomy tube, and then the tube body is pulled toward the proximal end portion to thereby bump the bumper. The part is deformed into an elongated shape. Then, maintaining this state, the gastrostomy tube is inserted into the gastrostomy together with the holding rod. After that, if the holding rod is pulled out when the bumper part enters the stomach, the bumper part is restored to a saddle shape in the stomach, and the extraction of the gastrostomy tube from the stomach is restricted.

  In the gastrostomy tube insertion assisting device disclosed in Patent Document 1, the extending portion of the locking member is further inserted through the through hole formed in the bumper portion, and the through hole of the bumper portion is formed at the step portion of the locking member. Lock the periphery. In this way, for example, the holding rod and the locking member are formed in a hollow shape, and a linear guide member such as a guide wire can be passed through the inside, so that the gastrostomy tube can be smoothly inserted using the guide member. It is also possible to do this.

  In addition, when the tube main body is pulled backward strongly with the extending portion of the locking member inserted through the through hole of the bumper portion, the through hole greatly expands and climbs over the stepped portion of the locking member. Therefore, the holding state of the bumper portion may not be maintained. Therefore, in Patent Document 1, a hard synthetic resin or a metal hollow reinforcing member is provided in the through hole of the bumper portion to prevent the through hole from expanding.

JP 2009-254578 A (FIGS. 2 and 6)

  In the thing of the said patent document 1, since the reinforcing member is provided in the through-hole of a bumper part as a gastrostomy tube for exclusive use of the gastrostomy tube insertion aid, the number of parts of a gastrostomy tube and a processing man-hour increase, There is a disadvantage of high cost. And in the thing of the said patent document 1, there exists a possibility that the reinforcement member provided in the through-hole of the bumper part may remove | deviate from a bumper part carelessly, and may fall in a stomach.

  In view of the above points, the present invention can reliably maintain a good holding state of the bumper portion without providing a reinforcing member in the bumper portion, and the insertion operation of the gastrostomy tube into the gastrostoma is extremely smooth. It is an object of the present invention to provide an insertion assisting tool for gastrostomy tube that can be performed in a simple manner.

  The present invention relates to a gastrostomy tube insertion aid that holds a gastrostomy tube and inserts it into the gastrostomy tube, and holds the flexible scissor-shaped bumper provided on the gastrostomy tube at the front end. A rod-shaped holding rod that includes an extending rod extending forward from the bumper portion held by the holding rod, and the extending rod is connected to one side of the holding rod via a connecting member. And are connected.

  The extending rod in the present invention is connected to one side of the holding rod by a connecting member. Thereby, an extending part can be extended ahead rather than a bumper part, without penetrating the bumper part of the gastrostomy tube hold | maintained at the front-end part of the holding rod. Therefore, it is not necessary to form a through-hole in the bumper portion, and it is not necessary to provide a reinforcing member as in the prior art, so that an increase in cost of the gastrostomy tube can be prevented.

  By the way, the gastrostomy penetrates the abdominal wall and the gastric wall, but if the fistula of the abdominal wall and the fistula of the gastric wall are misaligned, the gastrostomy that has passed through the fistula of the abdominal wall even if trying to insert the gastrostomy tube into the gastrostomy The front end of the tube comes into contact with a portion other than the fistula in the gastric wall, and the gastrostomy tube cannot be smoothly inserted. At this time, according to the present invention, prior to insertion of the bumper portion into the gastrostoma, the fistula of the gastric wall can be confirmed by the extending rod extending forward from the bumper portion, and further, the gastrostomy can be extended to the fistula of the gastric wall. An exit rod can be inserted to guide the bumper along the gastrostomy. Therefore, the operation for inserting the gastrostomy tube into the gastrostomy can be performed very smoothly.

  In the present invention, it is preferable that the extending rod is formed more flexibly than the holding rod. According to this, damage to the gastrostoma by the extending rod can be prevented, and the burden on the patient can be reduced.

  In the present invention, the extension rod is formed in a hollow shape so that the inside thereof serves as a guide passage for guiding the linear guide member, and has a bending strength greater than that of the guide member. It is characterized by being.

  The extension rod includes the guide passage so that the guide member can be inserted therein. As a result, when inserting the gastrostomy tube into the gastrostomy, the guide member is placed in the gastrostomy and the guide member is placed inside the extension rod with the bumper portion held at the front end of the holding rod. It can be inserted. Moreover, since the extending rod is formed to have a bending strength greater than that of the guide member, insertion along the guide member can be performed with accuracy while removing slack of the guide member. Therefore, according to the present invention, the extension rod and the bumper portion can be reliably inserted into the gastrostoma using the guide member, and the gastrostomy tube can be inserted into the gastrostoma more smoothly.

The side view which shows the insertion assistance tool for gastrostomy tubes of embodiment of this invention. The explanatory perspective view of the principal part of a gastrostomy tube. Sectional drawing of the principal part of a gastrostomy tube. The side view which shows the insertion assistance tool for gastrostomy tubes of the state holding the gastrostomy tube. Explanatory sectional drawing which shows the front-end part of a holding rod.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a gastrostomy tube insertion aid 1 (hereinafter simply referred to as “insertion aid 1”) of this embodiment includes a metal holding rod 2 such as stainless steel and a rear end of the holding rod 2. A handle portion 3 made of synthetic resin provided in the portion and a tube locking portion 4 for locking a tube body 10 (see FIG. 2) described later are provided.

  Further, an extension rod 6 is connected to the holding rod 2 via a connecting member 5 made of synthetic resin fixed at a predetermined distance from the tip (front end) thereof.

  The extension rod 6 has a length equivalent to that of the holding rod 2 and extends further forward than the front end of the holding rod 2 in a posture parallel to the axis of the holding rod 2 from one side of the holding rod 2. Yes. A predetermined gap is provided between the holding rod 2 and the extending rod 6 by the connecting member 5. The extension rod 6 is formed in a hollow rod shape, and the inside thereof serves as a guide passage 8 through which a linear guide member 7 such as a guide wire (see FIGS. 4 and 5) is inserted. Further, the extending rod 6 is formed so as to be more flexible than the holding rod 2 and to have a higher bending strength than the guide member 7.

  The handle 3 is formed in an L shape with an angle in a side view, and is formed so as to be easily grasped by an operator.

  The gastrostomy tube 9 inserted into the gastrostoma by the insertion assisting tool 1 of the present embodiment is a well-known one, but the configuration as an example thereof will be described. As shown in FIGS. A tube main body 10 for flowing objects and the like, and a bowl-shaped bumper portion 11 provided at the tip of the tube main body 10 are provided. The tube body 10 and the bumper part 11 are integrally formed of a flexible synthetic resin (silicone resin). A projecting portion 12 projecting radially inward is formed on the inner surface of the circumferential wall portion of the bumper portion 11 on one side in the circumferential direction, and a hole portion 13 opening radially inward of the bumper portion 11 is formed in the projecting portion 12. Has been.

  The outer diameter of the bumper part 11 is formed larger than the outer diameter of the tube body 10. A communication port 14 that communicates with the tube main body 10 is formed at the center of the bumper portion 11. A notch portion 15 is formed at a position facing the hole portion 13 in the peripheral wall portion of the bumper portion 11.

  When the gastrostomy tube 9 is held by the insertion assisting tool 1 having the above-described configuration, referring to FIGS. 4 and 5, first, the insertion assisting tool 1 is inserted into the hole 13 formed in the protruding portion 12 on the inner surface of the bumper portion 11. The front end of the holding rod 2 is inserted. Next, the tube body 10 is pulled rearward along the holding rod 2. Then, the tube main body 10 is locked to the tube locking portion 4 of the insertion assisting tool 1. As a result, as shown in FIG. 4, the bumper portion 11 is deformed into an elongated shape while being hooked on the holding rod 2, and the tube body 10 is in a posture along the longitudinal direction of the holding rod 2. 9 is held by the insertion aid 1.

  As shown in FIG. 5, the gastrostomy tube 9 held by the insertion assisting tool 1 is formed in the gap formed between the holding rod 2 and the extending rod 6 by the connecting member 5 in the space around the bumper portion 11. The part is firmly hooked by entering. Thereby, even if the tube main body is strongly pulled backward in a state where the bumper portion 11 is hooked on the front end portion of the holding rod 2, the hooked state of the bumper portion 11 is not released, and the gastrostomy tube 9 can be maintained reliably.

  Furthermore, as shown in FIG. 4, when the gastrostomy tube 9 is held by the insertion aid 1, the elongated and deformed bumper portion 11 wraps around the connecting member 5 on the outer periphery of the holding rod 2, and the level difference of the connecting member 5 is smooth. Therefore, the resistance when inserting into the gastrostomy can be reduced.

  When inserting the gastrostomy tube 9 into the gastrostomy, although not shown, first, the guide member 7 such as a guide wire drawn out from the stomach via the gastrostomy is extended to the insertion aid 1. The rod 6 is inserted into the guide passage 8. At this time, since the extension rod 6 has a bending strength greater than that of the guide member 7, the operation of passing the guide member 7 through the guide passage 8 of the extension rod 6 can be easily performed.

  Next, the extending rod 6 is inserted into the gastrostomy along the guide member 7. At this time, since the extending rod 6 is more flexible than the holding rod 2, it can be inserted into the gastrostoma without damaging the gastrostoma.

  In addition, since the extension rod 6 is inserted into the gastrostomy prior to the gastrostomy tube 9, the gastrostomy can be easily performed when the gastrostoma fistula and the gastric fistula are misaligned with each other. Can be confirmed. Moreover, since the extension rod 6 has a bending strength greater than that of the guide member 7, the extension rod 6 can be inserted while removing the slackness of the guide member 7, and the extension rod 6 touches the fistula of the stomach wall. Since the feel at the time of transmission is reliably transmitted to the practitioner, the insertion operation of the gastrostomy tube 9 into the gastrostoma becomes easy.

  Subsequently, the holding rod 2 is inserted into the gastrostomy along the guide member 7. At this time, since the shape of the gastrostoma is already adjusted by the extending rod 6, the bumper portion 11 held by the holding rod 2 can be smoothly inserted within, and the burden on the patient is small.

  Next, the tube body 10 is removed from the tube locking portion 4 and the guide member 7 is removed from the gastrostomy, and then the holding rod 2 and the extension rod 6 of the insertion aid 1 are removed from the gastrostomy. By the above procedure, the gastrostomy tube 9 can be reliably inserted into the gastrostomy using the guide member 7 and the insertion aid 1.

  The gastrostomy tube 9 that can be held in the insertion assisting tool 1 of the present embodiment is a known one in which a hole 13 for inserting the front end of the holding rod 2 of the insertion assisting tool 1 is formed in the bumper part 11. It can be used, and there is no need to provide a reinforcing member or a through hole in the bumper portion as in the prior art. Therefore, an increase in manufacturing cost of the gastrostomy tube 9 can be prevented.

  In the above description, an example in which the guide member 7 is used when the gastrostomy tube 9 is inserted into the gastrostomy is shown. However, the insertion assisting tool 1 of the present embodiment extends before the gastrostomy tube 9. Since the exit rod 6 can be inserted into the gastrostomy and the insertion operation is easy, the gastrostomy tube 9 can be smoothly inserted without using the guide member 7.

  When the guide member 7 is not used, the extension rod 6 may be formed in a solid rod shape instead of being hollow in the insertion assisting tool 1 of the present embodiment.

  Moreover, in this embodiment, although the insertion assistance tool 1 provided with the pattern part 3 formed in the substantially L shape was shown, the shape of a pattern part is not restricted to this, For example, it is a straight line in the axial direction of the holding rod 2 The shape extended in a shape may be sufficient.

  DESCRIPTION OF SYMBOLS 1 ... Insertion aid for gastrostomy tubes, 5 ... Connecting member, 7 ... Guide member, 6 ... Extension rod, 8 ... Guide passage, 9 ... Gastrostomy tube, 11 ... Bumper part, 12 ... Holding rod

Claims (3)

A gastrostomy tube insertion aid that holds the gastrostomy tube and inserts it into the gastrostomy, and is a rod-shaped retainer that holds the flexible scissor-shaped bumper provided on the gastrostomy tube at the front end In what has a rod,
An extension rod extending forward from the bumper portion held by the holding rod;
The extension rod is connected to one side of the holding rod via a connecting member, and a gastrostomy tube insertion aid.   The gastrostomy tube insertion aid according to claim 1, wherein the extension rod is formed more flexibly than the holding rod.   The extension rod is formed hollow and serves as a guide passage for guiding a linear guide member therein, and has a bending strength greater than that of the guide member. A gastrostomy tube insertion aid according to claim 1 or 2.

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