JPS61276531A - Insert aid jig of endoscope for colon - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an insertion aid used when inserting an endoscope into the large intestine. - [Prior Art] As shown in FIG. 11, the large intestine consists of a rectum 1, an S-shaped part 2, a descending colon part 3, a left colonic flexure 4, and a transverse colon part 5, which are successively connected. When inserting an endoscope into such a large intestine for diagnosis or treatment, it is extremely difficult to insert the endoscope due to the large number of bends and sagging parts. In particular, the large curvature of the S-shaped portion 2 and the large amount of slack in the transverse colon portion 5 make the insertion operation difficult.

Therefore, in order to make it easier to insert the endoscope into the large intestine,
It has been proposed to use a mantle tube shown in Japanese Utility Model Publication No. 53-43026. That is, this mantle tube is attached to the insertion section of the endoscope in advance, and when the insertion section is introduced into the transverse colon 5, it is inserted into the large intestine using the insertion part as a guide, and then this mantle tube is inserted as a guide. The insertion section is then introduced into the transverse colon section 5.

[Problems to be solved by the invention] However, is the above-mentioned mantle tube internal? J! It merely guides the insertion of the speculum insertion section, and is hardly able to force the large intestine into a bent or sagging state to make it easier to insert the insertion section. In other words, since it is not possible to straighten the S-shaped portion 2 or stretch the transverse colon portion 5 without sagging using the mantle tube, it is not easy to insert the endoscope into the large intestine. It was not something that could be changed.

This invention is a large intestine tube that forcibly reduces the stiffness of the S-shaped part and the sagging state of the transverse colon, making it possible to easily insert the insertion part. ! The purpose of the present invention is to provide a mirror insertion aid.

[Means and effects for solving the problems] In the present invention, a balloon 12 is provided on the outer peripheral surface of the distal end of a flexible tube 11 that is slidably fitted onto the insertion portion of a colon endoscope. The balloon 12 can be inflated by supplying air through an air passage 13 provided in the tube 11. Once the tube 11 is inserted into the large intestine, the balloon 12 is inflated to press against the inner surface of the large intestine, to hold the tube 11 so that it does not slide inside the large intestine, and to apply tension to the tube 11. This is what I did.

[Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 8. The insertion aid shown in FIG. 1 includes a tube 11 made of a flexible material such as silicone rubber or synthetic resin. A balloon 12 made of a stretchable film such as rubber is adhered to the outer peripheral surface of the distal end of the tube 11 in an airtight manner. One end of an air supply path 13 bored along the axial direction of the circumferential wall of the tube 11 communicates with the balloon 12, and the other end thereof is open to the outer circumferential surface of the proximal end of the tube 11. . One end of a connecting pipe 14 is connected to the other end of the air supply path 13 . This connection! Connected to the other end of 14 is a connection port body 15 made of a relatively soft material such as synthetic resin. This connection port body 15 is used for injection as an air supply means! 116 can be connected. Further, the connection port body 15 is provided with a check valve 17 made of a flexible piece 17, as shown in FIG. This flexible piece 17 normally closes the passage 6 of the connection port body 15, and when the syringe 16 is attached thereto, it is pushed open by its tip, and when removed, it is closed. The same effect can also be achieved by crushing the connecting port body 15 in the radial direction. Therefore, if the syringe 16 is connected to the connecting port body 15 and air is supplied, the balloon 12 can be inflated. In addition, the balloon 12 can be deflated by inhaling the injection a 116 or by removing the syringe 16 and crushing the connection port body 15. The grip body 19 is fitted and fixed on the outside, making it easy to insert the tube 11 (
are doing.

Next, the operation of inserting the insertion section 21 of the endoscope into the large intestine using the insertion aid having the above structure will be explained.

First, as shown in FIG. 3, with the tube 11 attached to the insertion section 21, the insertion section 21 is inserted into the rectum 1, and then curved and introduced to A of the S-shaped section 2. Then,
With the tube 11 guided by the insertion portion 21, the A scene 12 of the S-shaped portion 2 is pressed against the inner surface at point A, as shown in FIG. 4, and the tube 11 is held non-slidably. When the tube 11 is pulled in this state as shown in FIG. 6, the tube 11 tends to straighten, thereby forcibly stretching the S-shaped portion 2 and reducing its bend. Therefore, since there is almost no bending from the S-shaped portion 2 to the left colonic flexure 4, the insertion portion 21 can be easily inserted to the left colonic flexure 4 as shown in FIG. Once the insertion section 21 has been inserted to the left colonic flexure 4, deflate the balloon 12 by deflating it, release the holding state of the tube 11, and insert the tube 11 into the left side using the insertion section 21 as a guide. Enter the colonic flexure 4.

At this position, air is again supplied to the balloon 12 to inflate it, and after holding the tube 11 so that it cannot slide, the tube 11 is pulled.

Then, the tube 11 pulls the transverse colon 5 and reduces the slack in the transverse colon 5, so that the insertion section 21 can easily enter the transverse colon 5 as shown in FIG. In other words, since the tube 11 can be held non-slidably within the large intestine by the balloon 12,
By applying tension to the tube 11 in this state, the tube 11 can reduce the bending of the S-shaped portion 2 and the sagging of the transverse colon portion 5.

FIG. 9 shows a second embodiment of the present invention, in which the tube 11 can be bent. In other words, the passage 24 bored along the axial direction of the tube 11
A wire 25 is inserted through the tube 11, and one end of the wire 25 is fixed to the distal end surface of the tube 11. The other end of the wire 25 is led out from the proximal end of the tube 11, and a ring 26 is attached to the end. According to such a structure, ring 2
6, the tip of the tube 11 can be bent as shown by the chain line in the figure.
This tube 11 can be inserted into the large island by itself, that is, without being guided by the insertion section 21. Therefore, after inserting the tube 11, this tube 11
This has the advantage that the insertion section 21 can be inserted using the guide as a guide.

FIG. 10 shows a third embodiment of the present invention. In this embodiment, in the case of a tube 11 whose distal end can be bent with a wire 25 as in the second embodiment, an operation is performed inside the distal end of the tube 11. A tip member 28 is positioned that can be taken in and out by a wire 27. The distal end surface of this distal end member 28 is formed into a spherical shape. therefore,
When inserting the tube 11, if the distal end of the distal end member 28 is made to protrude from the distal end surface of the tube 11, the smooth distal end of the distal end member 28 can prevent the inner wall of the large intestine from being damaged.

[Effects of the Invention] As described above, in the present invention, a balloon is provided on the outer peripheral surface of the distal end of the tube, and by inflating the balloon, the tube can be held non-slidably in the large intestine. Therefore, by pulling the tube while holding it in a non-slidable state, it is possible to stretch the S-shaped part and reduce the slack in the transverse colon. Can be inserted easily and quickly.

[Brief explanation of drawings]

Fig. 1 is a partially sectional side view of a tube showing the first embodiment of the present invention, Fig. 2 is a sectional view of the connection port, and Figs. 3 to 8 sequentially show the tube insertion procedure. 9 is a side view of a tube showing a second embodiment of the present invention, FIG. 10 is a sectional view of the tip of a tube showing a third embodiment of the present invention, and FIG. 11 is a large intestine. FIG. 11...Tube, 12...Balloon, 13...
Air supply path, 16... syringe (air supply means). Applicant's representative Patent attorney ;9Ir:=;rr, =11,
Display of the case Japanese Patent Application No. 116725/1982 2, Name of the invention Insertion aid for colon endoscope 3, Person making the amendment Relationship to the case Patent applicant name (037) Olympus Optical Industry Co., Ltd. 4, Agent 56 Voluntary amendment 7, Contents of amendment (1) The entire specification is amended as shown in the attached sheet. (2) As shown in the attached drawings, Figures 1 to 8 are corrected, and Figures 12 and 13 are newly added. Description 1. Name of the invention: Insertion aid for colon endoscope 2. Claims: A flexible tube that is slidably fitted onto the insertion portion of a colon endoscope, and this tube. a balloon provided on the outer peripheral surface of the distal end of the tube, an air supply path provided in the tube with one end communicating with the balloon, and an air supply path provided at the other end of the tube to supply air to the balloon to inflate it. 1. An insertion aid for a colonic endoscope, characterized in that it is equipped with an air supply means. 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to an insertion aid used when fully inserting an endoscope into the large intestine. 1 [Prior Art] As shown in FIG.
, descending colon 3. The left colon flexure 4 and the transverse colon 5 are successively formed. When inserting an endoscope into such a large intestine for diagnosis or treatment, it is rarely very difficult to insert the endoscope due to the large number of bends and sagging parts. In particular, the large sag and curvature of the sigmoid colon section 2 and the large sag of the transverse colon section 5 make the insertion operation difficult. Therefore, in order to make it easier to insert the endoscope into the large intestine,
It has been proposed to use a mantle tube shown in Japanese Utility Model Publication No. 53-43026. That is, this mantle tube is attached to the insertion section of the endoscope in advance, and when the S-shaped colon section 2 is straightened and the insertion section is introduced into the transverse colon section 5, the S-shaped colon section 2 is inserted into the transverse colon section 5. In order to keep it in a straight line, use the insertion part as a guide to insert it into the colon, and then use this mantle tube as a guide to insert the insertion part into the transverse colon section 5.
We are trying to introduce it to [Problems to be Solved by the Invention] However, the mantle tube merely maintains the sigmoid colon 2 in a straight line, and does not allow the insertion portion to be inserted into the sigmoid colon 2 in a bent or sagging state. It cannot be easily linearized. In other words. Since there is no need to straighten the sigmoid colon part 2 or stretch the transverse colon part 5 to a slack-free state with the mantle tube, the operation of inserting the endoscope into the large intestine is made much easier. It wasn't possible. This invention provides a colon endoscope that forcibly reduces the bent and sagging state of the sigmoid colon and the sagging state of the transverse colon, allowing easy insertion of the insertion section. The aim is to provide aids. [Means and effects for solving the problems] In the present invention, a balloon 12 is provided on the outer circumferential surface of the distal end of a flexible tube that is slidably fitted onto the insertion portion of a colon endoscope. This nocturne 12 can be inflated by supplying air through an air passage 13 provided in the tube 11. Once the tube 11 is inserted into the large intestine, the balloon 12 is inflated and brought into pressure contact with the inner surface of the large intestine, and the tube 11 is pulled to tighten the sagging portion in the large intestine. [Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 8. The insertion aid shown in FIG. 1 includes a tube 11 made of a flexible material such as silicone gum or synthetic resin. An i4 rune 12 made of a stretchable film such as a comb is adhered to the outer peripheral surface of the distal end of the tube 11 in an airtight manner. For this balloon 12. One end of the air passage 13 bored along the axial direction of the peripheral wall of the tube 11 communicates with the other end of the tube 11.
It opens on the outer peripheral surface of the proximal end. One end of a connecting pipe 14 is connected to the other end of the air supply path 13 . This connecting pipe 14
At the other end is a connection port body 15 made of a material such as synthetic resin.
is connected. A syringe 16 as an air supply means can be connected to this connection port body 15. Further, the connection port body 15 is provided with a check valve 18 made of a flexible piece 17, as shown in FIG. This flexible piece 17 normally closes the passage of the connection port body 15, and when the syringe 16 is attached thereto, it is pushed open by its tip, and when removed, it is closed. Therefore, by connecting the syringe 16 to the connection port body 15 and supplying air, the balloon 12 can be prevented from inflating. In addition, by inhaling the syringe 16, the i+ rune 12 is
It is now possible to contract. moreover,
A gripping body 19 is fixed to the base end of the chain 11,
This makes it easier to insert the chases 11. Next, the operation of inserting the insertion section 21 of the endoscope into the large intestine using the insertion aid having the above structure will be explained. First, as shown in Fig. 3, insert the insertion section 21 from the rectal region 1 with the chain fil attached to the insertion section 21, and introduce it to A of the S-shaped colon section 2 while applying a bending operation. . Next, when the tape 11 is inserted as far as the sigmoid colon 2 using the insertion part 21 as a guide, as shown in FIG.
The balloon 12 is supplied and inflated as shown in the figure. Then, the balloon 12 comes into pressure contact with the inner surface at point A, and the tube 11 is held in the large intestine. In this state, when the chew is pulled as shown in FIG. 6, the bent 8'-shaped colon 2 is pulled together and shortened into a nearly straight shape. Therefore, the bending from the sigmoid colon portion 2 to the left colon flexure 4 is almost eliminated. The insertion portion 21 can be easily inserted up to the left colonic flexure 4 as shown in FIG. Furthermore, the insertion section 21
The tube is advanced through the left colonic flexure 4 to the transverse colon 5, the balloon 12 is deflated by deflating it, and the holding state of the chain 11 is released. It is then advanced through the left colonic flexure 4 to the endoscope in the transverse colon 5. At this position, air is again supplied to the balloon 12 to inflate it, and after holding the tube 11 in the large intestine, the tube 11 is pulled. Then f! Since the transverse colon section 5 is pulled by the puller 11 and the slack of the transverse colon section 5 is reduced, the insertion section 21 can be easily advanced into the transverse colon section 5 as shown in FIG. In other words, since the tape 11 can be held in the large intestine by the balloon 12, if the tape 11 is pulled by 11% in that state, the tape 11 can reduce the sagging and bending of the sigmoid colon 2, and the transverse colon 5. You can do things like reduce sagging. FIG. 9 shows a second embodiment of the present invention, in which the tube 11 can be bent. In other words, the passage 24 bored along the axial direction of the gourd 11
A wire 25 is inserted through the tube 1 and fixed to one end of the wire 25, which is the distal end surface of the tube 1. The other end of the wire 25 is led out from the base end of the tape 11, and a ring 26 is attached to the end. According to such a structure, ring 2
If the wire 25 is pulled by 6, the tip of the chase 11 can be curved as shown by the chain line in the figure.
This tube 1 can be bent alone or to fit the endoscope. In other words, it can be inserted into the large intestine without being guided by the insertion section 21. therefore. After inserting the tape 11, there is an advantage that the insertion portion 21 can be inserted using the tip 11 as a guide. FIG. 10 shows a third embodiment of the present invention. In this embodiment, in the case of a gourd 11 whose distal end can be curved with a wire 25 as in the second embodiment, the distal end of the tube 11 is A tip member 28 which can be moved in and out by means of an operating wire 22 is located within the section. The distal end surface of this distal end member 28 is formed into a spherical shape. But? hand,
When inserting the tube 11, if the tip of the tip member 28 is allowed to protrude from the tip surface of the tube 11, the smooth tip of the tip member 28 can prevent the inner wall of the large intestine from being damaged. 12 and 13 show a fourth embodiment of the invention,
In this embodiment, a ring-shaped pallet 12 is attached to the chain 211.
1 is slidably attached, while the balloon 121
One end of at least two or more tension wires, four wires 31 in this embodiment, are fixed to the inner peripheral surface of the wire at equal intervals in the circumferential direction. These wires 31 are slid into four guide grooves 32 formed along the axial direction on the outer circumferential surface of the component 11, respectively. The proximal end of the tube 11 is led out to the outside. These wires 31 are engaged with rollers 33 provided at positions corresponding to the respective guide grooves 32 on the proximal end side of the chain fil, and then bundled. The ends are connected to a ring 34. Further, a flexible air supply pipe 35 is used as a means for supplying air to the baton 121, so that it can be moved together with the balloon 121 when the balloon 121 is drawn toward the proximal end of the tape 11. It has become. That is, one end of the air supply pipe 35 is connected to the child rune 121, and the other end is connected to the connection port body 15. According to such a structure. By pulling the wire 31 using the 9-ring 34, the balloon 121 can be slid from the distal end of the tube 11 to the proximal end.
1 can tighten up the sagging part of the large intestine. Note that the //I rune bank is elastically attached so as not to fall off from the tube 11 in the contracted state, and becomes slidable with respect to the tube 11 when inflated. [Effects of the Invention] As described above, in the present invention, a balloon is provided on the outer peripheral surface of the distal end of the duplex, and by inflating the balloon, the tube can be held within the large intestine. Therefore, if you pull the tip while holding it in the large intestine, the S
Since it is possible to shorten the digit-shaped colon and reduce slack in the transverse colon, the insertion section of the endoscope can be inserted easily and quickly. 4. Brief description of the drawings Fig. 1 is a partially sectional side view of a tube showing the first embodiment of the present invention, Fig. 2 is a sectional view of the connection port body, and Figs. 3 to 8 are Similarly, FIG. 9, which is an explanatory diagram showing the tube insertion procedure sequentially, shows a second embodiment of the present invention. ,
- Fig. 10 is a sectional view of the distal end of the tube according to the third embodiment of the present invention, Fig. 11 is a schematic structural diagram of the large intestine, and Fig. 12 is a fourth embodiment of the present invention. FIG. 13 is a side view of the tube, and FIG. 13 is a cross-sectional view of the tube. 1 No. Chain f112, shaft balloon, 13-9, air supply path, 16, syringe (air supply means).

Claims (1)

[Claims] A flexible tube that is slidably fitted onto the insertion portion of a colon endoscope, a balloon provided on the outer periphery and surface of the distal end of the tube, and a balloon provided on the tube with one end communicating with the balloon. An insertion aid for a colon endoscope, comprising an air supply path and an air supply means provided at the other end of the air supply path for supplying air to the balloon to inflate it.