JPS6024326Y2 - Insertion aids such as endoscopes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an insertion aid such as an endoscope used when inserting, for example, a small intestine scope.

Generally, when a practitioner manually inserts a small intestine scope directly orally, the limit is that it can be inserted no further than 50 cm from the ligament of Treitz, which is the beginning of the small intestine.

This is because, as shown in Figure 1, when inserted into the small intestine, the small intestine scope bends inside the stomach, causing the stomach to sag, and pushing the small intestine in any further only increases the bending, and the tip does not move at all. be.

Therefore, conventionally, an insertion aid made of a flexible cylinder was placed over the insertion part of the small intestine scope in advance, and the small intestine scope was inserted into the stomach, and then the small intestine scope was inserted into the insertion aid. A method is being considered that involves sliding the part and inserting it even deeper.

In other words, by covering the insertion aid, the flexibility of the small intestine scope as a whole is made lower than that of a single small intestine scope, thereby reducing bending within the stomach. Since they can freely move around inside the room, we cannot expect much of an effect.

FIG. 2 shows an ideal insertion state when there is no bending in the stomach, but the insertion aid is omitted for convenience.

Recently, however, a balloon has been installed on the outer periphery of the tip of the insertion side of the above-mentioned auxiliary device, and this balloon is inserted into the duodenal bulb and inflated to hook the duodenal bulb and create a guide path from the mouth to the duodenum. A method was devised to do so.

However, in this method, the small intestine scope is first inserted and then the auxiliary device is pushed in from the proximal side using the small intestine scope as a guide, so the auxiliary device must be strong enough to withstand the pressure and compression. No.

For this reason, the rigidity of the auxiliary device itself has to be increased, which increases the burden placed on the patient, especially the throat area, and has the serious disadvantage of causing severe pain.

The present invention was developed in light of the above-mentioned circumstances, and its purpose is to provide an endoscope that can reduce the pain inflicted on the patient and that can introduce the tip into the fixation site in a short time. The purpose of this invention is to provide an insertion aid.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 3 shows an insertion aid used for inserting the small intestine scope.

In the figure, reference numeral 1 denotes an insertion section main body made of a flexible cylindrical member, and an operating section 2 is formed at the base end of this insertion section main body 1.

As shown in FIG. 5, the insertion section main body 1 has a passage 4 therein through which a small intestine scope 3, which is an inserted member, can be inserted.

A balloon 5 is provided on the outer periphery of the distal end of the insertion section main body 1, and the balloon 5 is connected to a pipe 7 in the operating section 2 via a fluid passage 6 formed within the thickness of the insertion section main body 1. connected.

That is, pressure fluid can be introduced into the balloon 5 through the pipe 7 and the fluid passage 6 to inflate the balloon 5.

Thus, the balloon 5 can be remotely operated by the operating section 2.

Furthermore, a balloon 8 is also provided on the inner periphery of the distal end of the insertion section main body 1, as shown in FIG.

This balloon 8 is connected to a pipe 10 in the operation section 2 via a fluid passage 9 different from the fluid passage 6, and supplies and discharges pressure fluid through the fluid passage 9 and the pipe 10, and operates the balloon 8. The balloon 8 can be inflated and deflated remotely in the section 2.

That is, when the balloon 8 expands, it constitutes a removable temporary fixing means that tightens and locks the outer circumference of the small intestine scope 3 inserted into the insertion section main body 1.

Note that the tip of the insertion portion main body 1 has a thinner and more flexible fin 11 than the other portions.

Further, in the operating section 2, a large-diameter eye 12 is attached to the base end of the operating section main body 1.

Next, how to use the insertion aid will be explained.

First, before inserting into the body cavity, the small intestine scope 3 is inserted into the insertion aid, and the inner balloon 8 is inflated.

As a result, the tip of the insertion section main body 1 is connected to the small intestine scope 3.
It is locked and temporarily fixed.

Thus, the distal end of the insertion section main body 1 is fixed to the distal end of the small intestine scope 3, and becomes integral.

In this state, as shown in FIG. 5, the small intestine scope 3 is inserted into the body until the balloon 5 on the outside of the waist enters the duodenal bulb 13.

Then, when the outer balloon 5 is located within the duodenal bulb 13, the outer balloon 5 is inflated and fixed to the duodenal bulb 13.

In this state, when the inner balloon 8 is contracted and the insertion section main body 1 is held slightly pulled toward the outside of the body, the small intestine is formed in a substantially straight line connecting the mouth 14 and the duodenal bulb 13, as shown in FIG. A passage 4 of the scope 3 is formed.

Therefore, by pushing the small intestine scope 3 forward, it can be easily inserted into the deep small intestine.

According to the above configuration, the distal end of the insertion section main body 1 can be secured to the distal end of the small intestine scope 3 by a waist plate.

Therefore, the distal end of the insertion section main body 1 can be introduced together with the small intestine scope 3.

In addition, since the tip of the insertion section main body 1 can be fixed within the body cavity,
If it is slightly pulled out of the body, the insertion portion main body 1 can be made almost straight.

Further, even if the insertion portion main body 1 is quite soft, a linear guiding passage can be formed.

Therefore, when introducing the insertion portion main body 1 into a body cavity,
It can be introduced without putting any strain on the throat.

Although the balloon 8 is used as the temporary fixing means in the above embodiment, the present invention is not limited to this. For example, as shown in FIG. By forming the hood 1 of the small intestine scope 3
It may be made to fit into the recess 17 formed in 6.

This temporary fixing means is designed so that if the small intestine scope 3 is pushed in relatively strongly, it will come off due to its elasticity.

Further, the protrusions and the recesses may be provided reversely as shown in FIG.

In addition, in FIG. 7, the protrusion 18 does not necessarily have the concave portion 19 as long as it has a diameter appropriate to the outer diameter of the small intestine scope, or it may be temporarily fixed only by frictional force. good.

As explained above, according to the present invention, the main body of the insertion part of the insertion aid can be made considerably flexible, instead of having a relatively stiff rigidity that can withstand pushing and compression like the conventional ones. Therefore, the burden placed on the patient's body cavity can be extremely small and the patient will not experience any pain.

In addition, since the insertion portion main body can be made as straight as possible within the body cavity, excellent effects such as the ability to easily insert the inserted portion of the endoscope are achieved.

[Brief explanation of drawings]

FIGS. 1 and 2 are explanatory diagrams showing the inserted state of the small intestine scope, respectively. FIG. 3 is a perspective view showing an embodiment of the present invention, and FIG. A sectional view, FIG. 5 is also an explanatory diagram of the usage state of the embodiment,
FIGS. 6 and 7 are cross-sectional views of the distal end of the insertion portion main body, respectively, showing different embodiments. 1...Insertion section main body, 2...Operation section, 3
...Small intestine scope, 4... - passage, 5... inter-balloon, 6... curved fluid passage, 7... pipe, 8
...Balloon, 9...Pipe.

Claims (3)

[Scope of utility model registration request] (1) A flexible insertion body that is more flexible than the cylindrical insertion member into which the insertion member can be inserted, an operating section provided at the proximal end of the insertion part main body, and the outer periphery of the tip of the insertion part main body. It is characterized by comprising a balloon that is provided in the insertion part and can be expanded and deflated in the operation part, and a removable temporary fixing means that is provided on the inner periphery of the distal end of the insertion part main body and that locks the inserted member. Insertion aids such as endoscopes. (2) An insertion aid for an endoscope or the like as set forth in claim 1, wherein the temporary fixing means is a balloon that can be inflated and deflated in the operating section. (3) An insertion aid for an endoscope or the like according to claim 1, wherein the temporary fixing means fits and engages the circumferential surface of the inserted member.