JP3024073U - Tube for insertion into the esophagus - Google Patents

Abstract

(57) Abstract: A tube for insertion into the esophagus, which is easy to operate and can be quickly inserted into the esophagus, is easy to insert, and is surely inserted. SOLUTION: An esophageal closing balloon 2 is provided on one end of a slightly curved tube body 1, and an intraoral balloon 3 is provided on the rear end side of the balloon at a predetermined distance from the balloon. A side hole (10) for ventilation is provided in the tube body so as to communicate with the inner cavity. This tube is of a single lumen type with one lumen in the tube body 1. Further, the distal end of the tube body 1 is flatly crushed and closed at a curved outer position to form a guide portion 13 having an outer diameter smaller than the outer diameter of the tube body and having a roundness as a whole.

Description

[Detailed description of the device]

[0001]

TECHNICAL FIELD OF THE INVENTION

 The present invention relates to a tube for insertion into the esophagus, which is used for securing an airway of a patient who does not have spontaneous breathing or has weak spontaneous breathing, such as an anesthetized patient or an emergency patient, and / or when performing artificial respiration. .

[0002]

[Prior art]

 For patients who do not have spontaneous breathing or are weak, a method of inserting a tube into the trachea and sending fresh air (oxygen) to the lungs is used, but this action is allowed only by the doctor. No, it could not be done at the site of the accident, except in special cases such as a doctor car. Recently, the emergency paramedic system was established, and the medical treatments that until now were only possible with firefighters could be performed at the scene of an accident, and life expectancy can be expected. However, paramedics are not allowed to use an endotracheal tube, and the method is to secure the airway as a result by closing the esophagus. A double-lumen type, which can be inserted into both the trachea and the esophagus, has been used so far, but it is not allowed for paramedics to insert it into the trachea when using this tube.

[0003]

[Problems to be solved by the device]

 However, the conventional tube for insertion into the esophagus is a double lumen type, and the tip of the tube body of one lumen is open, so it is possible to secure the airway even if it is inserted into either the esophagus or the trachea. On the other hand, the structure is complicated and in an emergency, the operation is complicated and it takes a long time to insert. Also, the fact that blind insertion is rather difficult was another cause of the time required for insertion. Furthermore, in situations where there is no time to secure the airway and other measures at the scene of an accident, the skill of a paramedic determines whether or not it can be inserted into the esophagus, and whether or not it is inserted into the esophagus. The problem is that it is not easy to confirm that this is the case, or the tip of the tube has a sharp shape that is just cut diagonally like the other endotracheal tubes, so the insertion When a paramedic unfamiliar with the paramedics performed, it often caused damage to the esophagus, trachea, and larynx.

Therefore, the present invention solves the above-mentioned conventional problems, is easy to operate and can be quickly inserted into the esophagus, and is easy and easy to insert into the tube for insertion into the esophagus. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the device of claim 1 is provided with a balloon for esophageal closing at the distal end of a slightly curved inner tube body for insertion into the esophagus, and a predetermined distance from the balloon to the rear end side. In the tube for insertion into the esophagus, in which an intraoral balloon is provided, and the tube main body between the two balloons has a ventilation side hole communicating with the lumen, the tube is the main lumen of the tube main body. Is a single-lumen type. In addition, the tip of the tube body is flattened and closed at the outer side of the curve, and is formed into a guide portion having an outer diameter smaller than the outer diameter of the tube body and having a roundness.

According to a second aspect of the present invention, in the first aspect, the guide portion is formed in a direction along a tangential direction of the curved outer side position. According to a third aspect of the present invention, in the first aspect, the guide portion is formed in a direction that is bent outward at a predetermined angle with respect to the tangential direction at the curved outer side position.

[0007]

[Embodiment of device]

 FIG. 1 is a front view of the esophageal insertion tube according to an optimum embodiment of the present invention, with a part of the tube for oesophageal insertion omitted and a part thereof broken, and FIG. Reference numeral 1 denotes a tube body made entirely of flexible silicone rubber, etc., and this tube body 1 has a total length L of about 35 cm. One side thereof, that is, in this embodiment, a shape slightly curved upward in FIG. And the tip is closed. An esophageal obstruction balloon 2 is provided at the tip of the tube body 1, and an intraoral balloon 3 is provided at a position spaced from the balloon 2 to the rear end side by a predetermined distance. The distance D between these balloons 2 and 3 is set to 9 cm, for example. Reference numeral 5 is a balloon 2 inflation lumen, to which a balloon 2 with a one-way valve 2 inflation tube 6 is connected in communication with the lumen at the rear end of the tube body 1. Reference numeral 7 denotes a balloon 3 inflation lumen, to which a balloon 3 with one-valve balloon 3 is similarly connected and connected to the lumen at the rear end of the tube body 1.

The tube body 1 between the balloons 2 and 3 is provided with a plurality of ventilation side holes 10 in communication with the lumen 11 of the tube body. In this embodiment, the side holes 10 are provided in the opposite side walls and the curved outer side wall. The side hole 10 of the curved outer wall is provided at an axially intermediate position with respect to the side holes 5 of both side walls. This tube is a single lumen type with one lumen as described above.

Reference numeral 13 denotes a guide portion of the tube body 1. The guide portion 13 is oriented substantially along the tangent (X) direction on the curved outer side of the tube body 1, as shown in FIG. It is flattened like a duck's beak and has an outer diameter smaller than the outer diameter of the tube body 1 and is formed into a rounded shape as a whole.

FIG. 4 shows another embodiment, in which the guiding portion 23 of the tube body 1 of this embodiment has a predetermined angle θ (outward with respect to the tangent (X) direction at the curved outer side position of the tube body 1. This embodiment is different from the above-mentioned guiding portion 13 in that it is formed so as to face a bent direction (about 20 °).

In order to insert the above-mentioned tube for insertion into the esophagus into the esophagus, the tongue and lower jaw of a patient lying down with one hand are raised as shown in FIG. The tube is quickly inserted from the distal end side with the curved outer side of the tube body 1 facing the operator. At the time of this insertion, the guide portion 13 (23) of the tube body 1 is flat like a duck's beak, and has a rounded shape, so that the guide portion is not damaged as it is without damaging the larynx or trachea. Guided by 13 (23), it can be smoothly inserted into the esophagus and can be performed blindly. Then, when it is inserted to a predetermined position, a syringe is connected to the branch tube 8 and air is sent to the lumen 7 to inflate the balloon 3 and close the larynx. Further, a syringe is connected to the branch tube 6 to send air to the lumen 6 to inflate the balloon 2 and close the esophagus. As a result, the tube is fixed as shown.

After that, the ventilation bag 25 is connected from the rear end opening of the tube body 1, and air is forced from the lumen 11 of the tube body 1 to the side hole 10 by alternately performing compression and expansion by hand like a fugo. After that, send it to the trachea side for ventilation. At this time, expansion of the balloon 2 closes the esophagus, preventing air from leaking toward the stomach or intestine, and expanding the balloon 3 closes the larynx, preventing air from leaking to the mouth or the outside. . Therefore, the airway of the patient is surely maintained.

Needless to say, the shapes and structures of the guiding portions 13 and 23 shown in the above-mentioned embodiments are merely preferable examples and are not limited to those shown in the drawings.

[0014]

[Effect of device]

 Since the invention of claim 1 has the above-mentioned structure, the insertion into the esophagus can be reliably performed by the guidance by the guidance part. In addition, since it is a single-lumen type, operability is increased, and the airway of the patient can be reliably secured in a short time, which is extremely useful for securing the initial airway in emergency medical care. Moreover, the rounded guiding part does not damage the esophagus, trachea, or larynx during insertion. There are various excellent effects.

[Brief description of drawings]

FIG. 1 is a front view of an esophageal insertion tube showing a most preferred embodiment of the present invention with a part thereof omitted and a part thereof cut away.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 shows a guide part at the tip of the tube of the same as above, (A) is a bottom view thereof, and (B) is a side view seen from the tip side.

FIG. 4 is a front view of a main part of another embodiment.

FIG. 5 is an operation explanatory view.

[Explanation of symbols]

 1 Tube Main Body 2 Esophageal Closure Balloon 3 Oral Balloon 5,7 Balloon Lumen 6,8 Branch Tube 10 Side Hole 11 Lumen 13,23 Guide Portion 25 Ventilation Bag

Claims (3)

[Scope of utility model registration request] 1. An esophageal closing balloon is provided at one end of a slightly curved tube body, and an intraoral balloon is provided at a predetermined distance from the balloon at the rear end side of the tube body, and the tube body between the balloons is provided. In the tube for insertion into the esophagus, which is provided with a ventilation side hole in communication with the lumen, the tube has one main lumen of the tube body,
It is a single lumen type, and the tip of the tube body is flattened and occluded at the curved outer position,
An esophageal insertion tube having an outer diameter smaller than the outer diameter of the tube main body and being formed in a rounded guide portion as a whole. 2. The tube for insertion into the esophagus according to claim 1, wherein the guide portion is formed in a direction along the tangential direction of the curved outer position. 3. The tube for insertion into the esophagus according to claim 1, wherein the guide portion is formed so as to be bent outward at a predetermined angle with respect to a tangential direction at a curved outer side position.