JP4985097B2 - Endoscope insertion aid - Google Patents

Description

  The present invention relates to an insertion aid for an endoscope used when, for example, an endoscope is inserted into an esophagus, and an insertion method using the insertion aid.

When inserting a medical endoscope deep into the esophagus, the esophagus is curved or bent, so it is inevitable that the endoscope touches the surface of the esophagus. Pain and nausea may occur when inserting and removing the endoscope. Further, the contact of the endoscope often damages the subject's mucous membrane and organs. For this reason, conventionally, in order to facilitate the passage of the endoscope and reduce the pain of the subject, a guide tube in which the endoscope is inserted and set has been proposed. In this guide tube, first, the distal end portion of the endoscope is inserted into the pharynx of the subject, and then the guide tube is slid along the endoscope and inserted into the pharynx. When the guide tube has been inserted, the mouthpiece is held in the mouth, the position is fixed and retained, and then the endoscope is inserted to the target position (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 7-51221 (pages 2 to 4, FIGS. 1 and 4)

  However, in the conventional insertion assisting device using such a guide tube, an endoscope inserted before the guide tube or a guide tube inserted along the endoscope does not contact the inner wall of the esophagus. There is a problem that it is inevitable that it is difficult to reduce the pain caused by contact.

  The present invention was invented in order to solve the above-described problems, and provides an insertion assisting tool for an endoscope and a method for inserting the same that can reduce pain of a subject and improve safety. It is the purpose.

  An endoscope insertion aid according to claim 1 of the present invention is an endoscope insertion aid for inserting and removing an endoscope into and from an esophagus, and a passage is formed inside and attached to a mouth. A mouthpiece, a cylindrical guide member that is larger in diameter than the endoscope and that can pass through the passage, and one end of which is connected to the cylindrical guide member and has a size corresponding to the length of the esophagus; A flexible support portion whose end is connectable to either the endoscope or the mouthpiece and moves integrally with the cylindrical guide member, one end is detachably locked to the mouthpiece, and the other end is a cylinder And a flexible tube that can be folded back and connected to the guide member, the tube is folded with its inner and outer surfaces reversed, the endoscope tip is placed in the cylindrical guide member, and the other end of the support portion is Connected to the endoscope and inserted the endoscope into the esophagus Than is.

  An endoscope insertion aid according to claim 1 of the present invention is an endoscope insertion aid for inserting / removing an endoscope into / from the esophagus, and a passage is formed inside and attached to the mouth. A mouthpiece, a cylindrical guide member that is larger in diameter than the endoscope and that can pass through the passage, and one end of which is connected to the cylindrical guide member and has a size corresponding to the length of the esophagus; A flexible support portion whose end is connectable to either the endoscope or the mouthpiece and moves integrally with the cylindrical guide member, one end is detachably locked to the mouthpiece, and the other end is a cylinder And a flexible tube that can be folded back and connected to the guide member, the tube is folded with its inner and outer surfaces reversed, the endoscope tip is placed in the cylindrical guide member, and the other end of the support portion is Connect to the endoscope and insert the endoscope into the esophagus It allows tube from the cylindrical guide member distal side as the endoscope tip is advanced through the esophagus is pulled out to the outside, the protective film of the tube between the endoscope and the esophagus inner surface is formed.

  The endoscope insertion aid according to claim 2 of the present invention is configured such that when the endoscope reaches a predetermined position in the esophagus, the connection between the support portion and the endoscope is released, and the end portion of the support portion is connected to the mouse. It is designed to be connected to a piece.

  In the endoscope insertion aid according to claim 2 of the present invention, when the endoscope reaches a predetermined position in the esophagus, the connection between the support portion and the endoscope is released, and the end portion of the support portion is connected to the mouse. By connecting to the piece, the formed protective film is held at a length corresponding to the size of the support portion, that is, at the end position of the esophagus, and the protective film is held in the esophagus and the endoscope is maintained. Can be taken in and out.

  According to a third aspect of the present invention, there is provided an insertion assisting tool for an endoscope, in which a tube is passed through a cylindrical guide member, the inner and outer surfaces are inverted and folded, and the endoscope is folded through a tube folded. It is arranged in the guide member.

  In the endoscope insertion aid according to claim 3 of the present invention, the tube is passed through the cylindrical guide member, the inner and outer surfaces are inverted and folded, and the endoscope tip is folded via the folded tube. By arranging in the guide member, the tube is extended outward from between the tubular guide member and the distal end of the endoscope as the distal end of the endoscope advances in the esophagus, so that the tubular guide member does not touch the surface of the esophagus. .

  An endoscope insertion aid according to the present invention is an endoscope insertion aid for taking an endoscope into and out of the esophagus, a mouthpiece having a passage formed therein and attached to the mouth, A cylindrical guide member that has a larger diameter than the endoscope and that can be freely inserted into and removed from the passage, and one end of which is connected to the cylindrical guide member and has a size corresponding to the length of the esophagus, and the other end is the endoscope A flexible support portion that can be connected to either the mirror or the mouthpiece and moves integrally with the cylindrical guide member, and one end that is detachably locked to the mouthpiece and the other end to the cylindrical guide member The tube is folded with the inner and outer surfaces reversed, the distal end of the endoscope is placed in the cylindrical guide member, and the other end of the support portion is used as the endoscope. Since it was connected and the endoscope was inserted into the esophagus, Protective film between the road and the endoscope side is formed, without the endoscope touches directly on the surface of the esophagus, it is possible to alleviate the pain of the subject.

  An insertion method using an insertion aid for an endoscope according to the present invention is an insertion method in which an endoscope is inserted into an esophagus with an insertion aid, the mouthpiece having a passage formed therein and attached to the mouth And a cylindrical guide member that is larger in diameter than the endoscope and that can pass through the passage, and one end of which is connected to the cylindrical guide member and has a dimension corresponding to the length of the esophagus, and the other end is A flexible support portion configured to be connectable to either the endoscope or the mouthpiece and moving integrally with the cylindrical guide member, and one end detachably locked to the mouthpiece and the other end to the cylindrical guide A flexible tube that can be folded back and connected to the member. After the tube is folded with its inner and outer surfaces reversed, the endoscope tip is placed in the cylindrical guide member, and the other end of the support portion is placed. Connect the endoscope and insert the endoscope into the esophagus Therefore, as the endoscope enters, a protective film is formed between the esophagus and the endoscope side, so that the endoscope does not directly touch the esophagus surface, which can alleviate the pain of the subject. it can.

  An insertion aid for inserting an endoscope into and out of the esophagus, a mouthpiece formed with a passage in the interior and attached to the mouth, and having a larger diameter than the endoscope and passing through the passage A free cylindrical guide member, a cylinder having one end connected to the cylindrical guide member and having a dimension corresponding to the length of the esophagus, the other end being connectable to either an endoscope or a mouthpiece A flexible support portion that moves integrally with the guide member, and a foldable soft tube having one end detachably locked to the mouthpiece and the other end connected to the cylindrical guide member. The tube is folded by reversing the inner and outer surfaces, the endoscope tip is placed in the cylindrical guide member, the other end of the support portion is connected to the endoscope, and the endoscope is inserted into the esophagus. Reduce pain and increase safety To achieve the target.

  Hereinafter, the present invention will be described with reference to embodiments shown in the drawings. FIG. 1 is an explanatory view showing the entire insertion assisting tool according to one embodiment of the present invention, and FIGS. 2 to 6 are explanatory views showing respective components of the insertion assisting tool of FIG. The insertion assisting tool 10 according to the present embodiment includes a mouthpiece 20 to be attached to the mouth of a subject, a tube introduction member 30, and a soft tube provided between the mouthpiece 20 and the tube introduction member 30. 40. The endoscope (endoscope) 60 is generally used as a medical instrument, and includes an insertion portion 60a having flexibility. At the time of examination or treatment of the digestive system esophagus and stomach, the distal end of the endoscope 60 is inserted from the mouth and sent to the target part.

  As shown in FIGS. 2 and 3, the mouthpiece 20 is formed of a flexible resin so that the mouthpiece 20 does not collapse even if the subject bites. The mouthpiece 20 is provided with a conical tube portion 21 in which a passage through which an endoscope can be taken in and out is formed and the diameter of the mouthpiece 20 is gradually reduced. In the outer opening 21a of the tube portion 21, a collar portion 22 that covers the mouth of the subject is formed. On the upper and lower sides of the cylindrical portion 21, pawl portions 23 and 24 that are located on the back sides of the upper and lower teeth and prevent the mouthpiece 20 from coming off are formed. The flange portion 22 is provided with a hook-like protective film retaining hook 25 around the opening portion 21a at equal intervals in the circumferential direction, and a connecting portion 26 is provided above the opening portion 21a. The cylindrical portion 21 serving as a passage for the endoscope 60 has a diameter that gradually decreases in the mouth so that there is little foreign object / resistance when the subject holds the mouthpiece 20. The endoscope 60 can be taken in and out. The upper and lower pawl portions 23 and 24 of the tube portion 21 are each shaped to match the curve of the upper and lower gums so that the subject can easily hold them.

  As shown in FIGS. 4 and 5, the tube introduction member 30 is formed using a flexible resin as a material, and has a short cylindrical guide member 31 and one end opening 31 b of the cylindrical guide member 31. A flexible rod-like support portion 32 formed in the above is provided. The cylindrical guide member 31 is a hollow cylindrical short cylinder formed to have a larger diameter than the outer diameter of the endoscope 60, and is disposed at the distal end of the endoscope insertion portion 60a. A predetermined gap is secured between the inner diameter and the outer diameter of the endoscope insertion portion 60a. The support part 32 is formed to extend in the axial direction from the upper end of the cylindrical guide member 31, and its length L32 is preset according to the length of the esophagus of the subject. As for the tube introduction member 30, the cylindrical guide member 31 is arrange | positioned at the front-end | tip of the endoscope insertion part 60a, and the rear end 32a of the support part 32 is connected to the rear part 60b of the endoscope 60 (refer FIG.8 (B)). It has become so.

  As shown in FIG. 6, the tube 40 includes a tube main body 41 formed of a thin flexible material such as rubber or synthetic resin, and a flange 42 formed at one end of the tube main body 41. . The flange 42 is formed with a retaining hole 43 for hanging on the mouthpiece 20. The tube main body 41 can be reversed on the inner and outer surfaces, and the length L41 of the tube main body 41 is preset according to the length of the subject's esophagus. The tube main body 41 is slightly smaller in diameter than the tube introduction member 30 and larger in diameter than the endoscope 60. The other end 41 a of the tube main body 41 matches the inner diameter of the cylindrical guide member 31 of the protective film insertion member 30. The fastening hole 43 of the flange 42 is detachably hooked on the hook 25 of the mouthpiece 20.

  As shown in FIGS. 7 and 8, the insertion assisting tool 10 according to the above embodiment is set with the following preparations in advance before insertion of the endoscope 60. First, an adhesive is applied to the inner peripheral surface of the insertion side opening 31a of the tube introduction member 30 (see FIG. 7A), and the outer peripheral surface of the other end 41a of the tube main body 41 is applied to the adhesive application surface 50. Are bonded (see FIG. 7B). Next, the tube main body 41 is pushed into the cylindrical guide member 31 of the tube introduction member 30 from the other end 41a side, and is pushed to a position where the flange 42 contacts the insertion side opening 31a of the cylindrical guide member 31 ( (See FIG. 7C). At this time, the tube 40 is in an inverted state in which the tube body 41 is folded in half.

  Next, as shown in FIGS. 7C and 8A, in the state where the tube introduction member 30 and the tube 40 are set, the endoscope insertion portion 60a is connected to the folded end opening 41C of the tube main body 41. Inserted into the cylindrical guide member 31. Then, the end portion 32a of the support portion 32 is connected to the rear portion 60b of the endoscope 60 with a tape or the like (see FIG. 8B). Next, in a state where the endoscope insertion portion 60a is set to the cylindrical guide member 31 via the tube 40, the retaining holes 43 of the flange 42 are respectively engaged with the film retaining hooks 25 of the mouthpiece 20 (FIG. 8). (See (C)). At this time, the support portion 32 is positioned above the mouthpiece 20 opening 21 a and is hooked so that the support portion 32 can be connected to the connecting portion 26 later. In this way, preparation for insertion of the endoscope 60 is completed.

  Next, the endoscope insertion method of the present invention will be described based on the operation of the endoscope insertion aid 10 according to the above embodiment. First, the tube 40 connected to the insertion side opening 31a of the tube introduction member 30 is pushed into the insertion side opening 31a of the cylindrical guide member 31 and folded while the tube main body 41 is reversed. When reaching the insertion side opening 31a, the pushing is stopped (see FIG. 7C), and the mounting of the tube 40 to the tube introduction member 30 is completed. Next, the insertion portion 60a of the endoscope 60 is inserted into the folded end opening 41C of the tube body 41 that is inverted and hangs down, and the insertion portion 60a is guided from the support portion side opening 31b of the cylindrical guide member 31 to the inside. The guide member 31 is disposed inside the guide member 31. At this time, the insertion portion 60 a can be rotated via the tube body 41 folded with respect to the cylindrical guide member 31. Next, the cylindrical guide member 31 is rotated with respect to the insertion portion 60 a, the support portion 32 is disposed on the upper side so as to match the position of the connecting portion 26 of the mouthpiece 20, and the end portion 32 a of the support portion 32. Is connected to the rear portion 60b of the endoscope 60 (see FIG. 8B). In this state, the attachment of the tube introduction member 30 to the endoscope 60 is completed. At this time, the tube introduction member 30 attached to the insertion portion 60 a moves together with the endoscope 60. The tube body 41 that is inverted and folded covers the outer periphery of the endoscope 60.

  Next, in order to insert the endoscope 60 with the tube introduction member 30 attached to the esophagus 80 of the subject, as shown in FIG. 8C and FIG. The insertion part 60 a of the endoscope 60 is inserted into the tube part 21 from the opening part 21 a of the mouthpiece 20 together with the tube introduction member 30. Since the endoscope 60, the cylindrical guide member 31, and the support portion 32 are all flexible and bent, when the endoscope 60 is fed into the tube portion 21, it is integrated with the tube introduction member 30. The insertion portion 60a enters the bent esophagus 80 along the inner wall. At this time, since the tube 42 has the flange 42 locked to the mouthpiece 20 side, the tube main body 41 that is inverted and folded and covers the outer periphery of the endoscope 60 has a cylindrical shape as shown in FIG. The protective film is drawn out between the guide member 31 and the endoscope insertion portion 60a, and a protective film is formed between the inner wall of the esophagus 80 and the tube introduction member 30 as the insertion portion 60a enters (see FIG. 11). The protective film formed by inverting the tube 40 is extended in response to the insertion of the insertion portion 60a, and when the rear end 32a of the support portion 32 reaches the vicinity of the connection portion 26 of the mouthpiece 20, that is, a tube introduction member When the 30 cylindrical guide members 31 reach the end of the esophagus 80 (see FIG. 12B), the rear end 32a of the support portion 32 and the endoscope 60 are disconnected, and the rear end 32a of the support portion 32 is released. Is connected to the connecting portion 26 (see FIG. 12A). Since each of the tube 40 and the support portion 32 is approximately sized according to the length of the esophagus 80, the protective film 40 is formed over substantially the entire length of the esophagus 80, and the state of the protective film 40 is supported by the support portion 32. Held in. For this reason, the tube introduction member 30 and the endoscope 60 do not directly touch the inner wall of the esophagus 80. Further, when the endoscope 60 is inserted, even if the tube introduction member 30 or the endoscope 60 presses or rubs against the esophagus 80 side, the protective film 40 is interposed, so that stimulation given to the inner wall of the esophagus 80 is provided. It can alleviate discomfort and pain.

  The endoscope 60 can be used even when the tube introduction member 30 is attached to the mouthpiece 20, that is, when the tube 40 is taken in and out as a protective film over almost the entire length of the esophagus 80. The inner wall of the esophagus 80 is not touched directly, and even if the esophagus 80 side is pressed or rubbed, the protective film 40 is interposed, so that the stimulation applied to the inner wall of the esophagus 80 can be alleviated. After the operation of the endoscope 60 is completed, the endoscope 60 is first pulled out, and then the connection between the rear end 32a of the support portion 32 and the connecting portion 26 is released, and the tube introduction member 30 is pulled out. The operation is completed by removing the mouthpiece 20. As described above, in the endoscope insertion method according to the present invention, the protective film 40 is formed on the esophagus 80 in accordance with the insertion of the endoscope 60, so that it is possible to alleviate the pain when the endoscope is taken in and out. .

  In addition, in the said Example, although the tube 40 was demonstrated in the state set to the inner side of the cylindrical guide member 31 of the tube introduction member 30, it is not restricted to this, The tube 40 is outside the tube introduction member 30. You may use it in the state set to. In that case, it is preferable to form the outer diameter of the tube 40 larger than the inner diameter of the cylindrical guide member 31. Moreover, although the esophagus was described in the said Example, it is not restricted to this, It cannot be overemphasized that what is necessary is just a body cavity. That is, by forming the cylindrical body in a shape suitable for the body cavity entrance, it can be applied to endoscopes for various lumens such as digestive organs including the rectum, respiratory organs, and circulatory organs. Not too long. Furthermore, in the above-described embodiment, an endoscope is illustrated as an endoscope. However, the present invention is not limited to this, and it is needless to say that the present invention can also be applied to a guide tube for taking in and out the endoscope. Moreover, in the said Example, although the support part is formed integrally with the cylindrical guide member, it is not restricted to this, You may make it form separately and connect with a cylindrical guide member.

It is explanatory drawing which shows the insertion auxiliary tool of the endoscope which concerns on one Example of this invention. Example 1 It is a front view which shows the mouthpiece of FIG. It is the III-III sectional view taken on the line of the mouthpiece of FIG. It is a perspective view of the tube introduction member of FIG. It is a front view of the tube introduction member of FIG. It is a perspective view of the tube of FIG. (A) thru | or (C) is explanatory drawing which shows the attachment state of a tube introduction member and a tube, respectively. (A) thru | or (C) is explanatory drawing which shows the state before insertion, respectively. It is a partially expanded sectional view which exaggerates and shows the state which set the insertion auxiliary tool of FIG. It is explanatory drawing at the time of insertion of the insertion assistance tool of FIG. It is explanatory drawing which shows the insertion state of the insertion auxiliary tool of FIG. (A) And (B) is explanatory drawing which exaggerates and shows the use condition of an insertion auxiliary tool, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Insertion aid 20 Mouthpiece 31 Cylindrical guide member 32 Support part 40 Tube 60 Endoscope

Claims (3)

An endoscope insertion aid for taking an endoscope into and out of the esophagus,
A mouthpiece in which a passage is formed and attached to the mouth;
A cylindrical guide member that is formed in a larger diameter than the endoscope and that can freely pass through the passage;
One end is connected to the cylindrical guide member and has a dimension corresponding to the length of the esophagus, and the other end is configured to be connectable to either the endoscope or the mouthpiece, and can move integrally with the cylindrical guide member. A flexible support, and
One end is removably locked to the mouthpiece and the other end is configured to include a foldable flexible tube connected to the cylindrical guide member.
Folding the tube with its inner and outer surfaces reversed, placing the endoscope tip in a cylindrical guide member, connecting the other end of the support to the endoscope, and inserting the endoscope into the esophagus Endoscope insertion aid.   The endoscope according to claim 1, wherein when the endoscope reaches a predetermined position in the esophagus, the connection between the support portion and the endoscope is released and the end portion of the support portion is connected to the mouthpiece. Mirror insertion aid.   The tube according to claim 1 or 2, wherein the tube is passed through the cylindrical guide member and folded by reversing the inner and outer surfaces, and the distal end of the endoscope is disposed in the cylindrical guide member via the folded tube. The endoscope insertion aid as described.

Images