KR102215835B1 - Intubation tube having self cleaning property - Google Patents

Abstract

The present invention relates to an airway intubation tube, in the airway intubation tube having a self-cleaning function, comprising a tube body having a breathing channel and a suction channel that is elongated and positioned with a boundary wall therebetween, and through the breathing channel Gas flow of the patient's inhalation and exhalation occurs, and the suction passage is connected to an external suction device to discharge the patient's sputum to the outside of the tube body, and a passage communicating the breathing passage and the suction passage on the boundary wall The ball is formed.

Description

Airway intubation tube with self-cleaning function {INTUBATION TUBE HAVING SELF CLEANING PROPERTY}

The present invention relates to an airway intubation tube having a self-cleaning function.

The airway intubation tube is used to secure the patient's airway through which oxygen and medicines pass. In the case of unconscious emergency patients, self-breathing is difficult, so an airway intubation tube is inserted to assist breathing.

The airway intubation tube is formed in the form of a flexible tube having a predetermined length to be inserted into the patient's airway. A balloon is located at the lower end of the airway intubation tube. After the airway intubation is made, the balloon is inflated to a certain size for the purpose of maintaining airtightness with the interior lining of the trachea, that is, preventing foreign substances in the esophagus from entering the lungs.

Since these airway intubation tubes are contaminated by patient phlegm, etc., there is a problem that cleaning must be performed frequently using a suction tube or the like.

Korea Registration No. 10-0868781 (announced on November 17, 2008)

Accordingly, an object of the present invention is to provide an airway intubation tube having a self-cleaning function.

An object of the present invention is an airway intubation tube having a self-cleaning function, including a tube body having a breathing channel and an inhalation channel that is elongated and positioned with a boundary wall therebetween, and the patient's inhalation and inhalation through the breathing channel A gas flow of exhalation occurs, and the suction passage is connected to an external suction device to discharge the patient's sputum to the outside of the tube body, and a through hole communicating the breathing passage and the suction passage is formed on the boundary wall. Achieved by

It is connected to the tube body, it may further include a control valve for adjusting the communication degree of the through hole according to the gas flow direction in the breathing passage.

The control valve may communicate more through the through hole when exhalation occurs than when inhalation occurs in the breathing passage.

The control valve partially blocks the flow path cross section of the suction path, and may block the flow path cross section more when exhalation occurs than when inhalation occurs in the breathing path.

The control valve, a first portion located in the breathing passage; And a second portion located in the suction passage.

The control valve has a plate shape, and an area of the first portion may be larger than an area of the second portion.

The first portion and the second portion may have a surface facing the suction direction of the suction passage and may be disposed smaller than 180 degrees.

An adapter connected to one end of the tube body may be further included, and a gas discharge hole may be formed at the other end of the tube body, and the through hole may be formed close to the other end.

The through hole is formed to be inclined along the longitudinal direction of the tube body, and may increase along the suction direction from the breathing passage to the suction passage.

In the tube body, the boundary wall may be formed thicker than other portions of the tube body.

It is connected to the tube body, it may further include a control valve for adjusting the communication degree of the through hole according to the gas flow direction in the breathing passage.

The control valve may communicate more through the through hole when exhalation occurs than when inhalation occurs in the breathing passage.

The control valve may be located only in the air passage.

It may further include a balloon connected to the outer surface of the tube body.

According to the present invention, an airway intubation tube having a self-cleaning function is provided.

1 shows the airway intubation tube according to the first embodiment of the present invention,
2 is a cross-sectional view taken along II-II' of FIG. 1,
3 is a cross-sectional view taken along III-III' of FIG. 1,
4 is a cross-sectional view taken along IV-IV' of FIG. 1,
5a and 5b show the operation of the airway intubation tube according to the first embodiment of the present invention,
6a and 6b show a modified example of the control valve in the airway intubation tube according to the first embodiment of the present invention,
7a and 7b show the arrangement of the control valve in the airway intubation tube according to the first embodiment of the present invention,
Figure 8 shows the airway intubation tube according to the second embodiment of the present invention,
9 shows an airway intubation tube according to a third embodiment of the present invention,
Figure 10 shows the operation of the airway intubation tube according to the third embodiment of the present invention,
11 shows an airway intubation tube according to a fourth embodiment of the present invention,
12A and 12B show the operation of the airway intubation tube according to the fourth embodiment of the present invention.

The present invention will be described in more detail below with reference to the drawings.

The accompanying drawings are only an example illustrated to describe the technical idea of the present invention in more detail, and the spirit of the present invention is not limited to the accompanying drawings. In addition, in the accompanying drawings, sizes and intervals may be exaggerated differently from the actual in order to describe the relationship between each component.

An airway intubation tube according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

1 shows the airway intubation tube according to the first embodiment of the present invention, FIG. 2 is a cross-section along II-II' of FIG. 1, and FIG. 3 is a cross-section along III-III' of FIG. 4 is a cross-sectional view taken along IV-IV' of FIG. 1.

The airway intubation tube (1, airway intubation device) according to the first embodiment of the present invention supplies/discharges gas into the airways of the patient and is close to the tube body 10 and the distal part of the tube body 10 to inhale sputum. It includes a balloon 20 positioned, an adapter 30 connected to the proximal end of the tube body 10, a balloon air supply pipe 41 and an injection adapter 51 for supplying air to the balloon 20.

The tube body 10 secures the patient's breath by supplying oxygen (air) into the patient's airways, and inhales the patient's phlegm. The tube body 10 is formed in the form of a flexible tube having a predetermined length. The tube body 10 may be formed of polyethylene, polypropylene, or such a flexible semi-rigid flexible resin to facilitate airway intubation. The end of the tube body 10 has a pointed shape for easy insertion.

Gas discharge holes 11 and 12 for supplying oxygen into the airways are formed in the upper end (lower end) of the tube body 10.

In this embodiment, the tube body 10 is formed integrally, but in another embodiment, the tube body 10 may be formed by combining a plurality of tubes, and the plurality of tubes have a material, an outer diameter and/or an inner diameter of each other. It can be different. In addition, the shape and position of the gas discharge holes 11 and 12 can be variously modified.

An adapter 30 is connected to the proximal end (upper end) of the tube body 10 to which a ventilator, an oxygen supply, a medical gas supply, an anesthetic device, an inhalation device, or other ventilation device is connected. The oxygen supplied to the tube body 10 may be a mixed gas other than 100% oxygen. The adapter 30 may be deformed into an appropriate shape for independent connection with each of the breathing passage and the suction passage to be described later and an external device.

The balloon air supply pipe 41 is connected to the tube body 10. One end of the balloon air supply pipe 41 is connected to the balloon 20 and the other end is connected to the injection adapter 51.

The injection adapter 51 is connected to an external syringe and inflates by injecting air into the balloon 20 or deflates the air from the balloon 20 to contract the balloon to its original state.

In another embodiment, the configuration for supplying air (gas) to the balloon 20 may be variously modified, and the air (gas) injection/discharge means is not limited to a syringe. In the case of using an air injection/discharge means other than a syringe, the injection adapter 51 may be appropriately modified.

The tube body 10 includes a channel wall 110 and has a breathing channel and a suction channel as shown in FIG. 2. The breathing passage and the inhalation passage are partitioned by the boundary wall 120.

The breathing passage has a wider cross-sectional area than the inhalation passage, and the cross-sectional area of the breathing passage may be 2 to 10 times the cross-sectional area of the inhalation passage. Although not shown, the suction passage may be blocked at the ends adjacent to the gas discharge holes 11 and 12.

A through hole 121 is formed in the boundary wall 120 close to the gas discharge hole 11 as shown in FIGS. 3 and 4. However, in other embodiments, the position of the through hole 121 may be variously modified, such as being uniformly distributed in the tube body 10.

The through hole 121 is formed in the boundary wall 120 to communicate the breathing passage and the suction passage. In the first embodiment, the through hole 121 is formed in a rectangular shape, but the shape of the through hole 121 may be variously modified.

The control valve 60 is located in the through hole 121. The control valve 60 has an a-shaped shape and includes a first part 61a and a second part 61b.

The first part 61a is located in the breathing channel, and the second part 61b is located in the inhaling channel. The control valve 60 is provided in a thin plate shape, and the material may be metal or plastic.

A part of the control valve 60 is fixed (connected) to the boundary wall 120 and can be moved around the fixed part by the patient's inhalation and exhalation. In the drawings, the fixed form of the boundary wall 120 of the control valve 60 is not shown, but the control valve 60 may be fixed to the boundary wall 120 using a conventional method such as using a separate fixing member.

The first part 61a and the second part 61b have a surface facing the suction direction of the suction passage, as shown in FIG. 3, which is smaller than 180 degrees.

Hereinafter, the operation of the airway intubation tube according to the first embodiment of the present invention will be described with reference to FIGS. 5A and 5B.

The user (medical staff, etc.) inserts the tube body 10 into the patient's airway. When the tube body 10 is correctly inserted into the airway, air is injected into the balloon 20 through a syringe to inflate the balloon 20.

In this state, a ventilator or an oxygen supply device is connected through the tube body 10 to supply oxygen to the patient's airways. The expanded balloon 20 prevents oxygen from leaking through the tube body 10 after airway intubation, and further prevents foreign substances in the esophagus or airways from entering the lungs. In addition, suction in the suction passage is performed using an external suction device. Inhalation can be continuous or intermittent.

In this situation, the patient's inhalation and exhalation occur alternately, and the patient's phlegm enters the breathing passage through the gas exhaust holes (11, 12).

In the case of exhalation, gas flows upward in the breathing passage as shown in FIG. 5A. In the present specification, the "lower direction" refers to a direction from the length direction of the tube body 10 toward the gas discharge holes 11 and 12. "Upper direction" refers to the opposite direction of "lower direction", and "upper direction" is also expressed as "higher".

The first part 61a of the control valve 60 receives a force in the upward direction by the gas flow in the upward direction and is lifted upward. Accordingly, the through hole 121 is opened (the degree of communication is increased), and the phlegm of the breathing channel is moved to the suction channel through the through hole 121 by the suction flow of the suction channel.

In the case of inhalation afterwards, gas flow in the downward direction occurs in the breathing passage as shown in FIG. 5B. The first part 61a of the control valve 60 receives a downward force due to the gas flow in the lower direction to reduce the communication area of the through hole 121. In this case, the degree of communication between the breathing channel and the inhalation channel decreases, and the suction power of the inhalation channel increases. Due to the increased suction force, sputum introduced into the suction passage during the exhalation process moves upward along the suction direction, and as a result may be discharged to the outside.

In this way, the control valve 60 communicates the through hole 121 more when exhalation occurs than when inhalation occurs in the breathing passage. The control valve 60 partially blocks the flow path cross section of the suction flow path, and blocks the flow path cross section more when exhalation occurs than when inhalation occurs in the air flow path.

When the airway intubation tube 1 according to the first embodiment described above is used, the control valve 60 moves according to the patient's breathing, and the sputum moves to the suction passage, thereby self-cleaning. Therefore, the airway intubation tube 1 can be kept clean for a long time without a separate cleaning.

The airway intubation tube according to the first embodiment described above can be variously modified. This will be described with reference to FIGS. 6A to 7B.

6A and 6B show a modified example of the control valve in the airway intubation tube according to the first embodiment of the present invention, and FIGS. 7A and 7B are the control valves in the airway intubation tube according to the first embodiment of the present invention. It shows the arrangement.

The control valve 60 may have various shapes as shown in FIGS. 6A and 6B.

In the control valve 60 shown in FIG. 6A, the length d1 of the first part 61a is 1.5 times or more, and specifically, may be 1.5 to 5 times, the length d2 of the second part 61b. .

Since the length of the first part 61a is long and the area is wide, the operation of the control valve 60 is easily performed due to the influence of inhalation and exhalation.

In the control valve 60 shown in FIG. 6B, the first part 61a and the second part 61b are elliptical. In addition, the shapes of the first portion 61a and the second portion 61b may be variously changed, and the first portion 61a and the second portion 61b may have different shapes. In addition, the first part 61a may have the same shape as the through hole 121, but is not limited thereto.

In another embodiment, the first part 61a is provided with a length and/or width larger than that of the through hole 121, so that it can always be located in the breathing channel regardless of the patient's breathing.

Arrangement of the through hole 121 and the control valve 60 accordingly may have various forms as shown in FIGS. 7A and 7B. Only the control valve 60 is shown in FIGS. 7A and 7B.

As shown in FIG. 7A, the control valve 60 may be arranged in a matrix form. In addition, in order to improve the sputum discharge ability, the control valve 60 may be provided to extend long in the transverse direction in the longitudinal direction as shown in FIG. 7B. In the modified example shown in FIG. 7B, the through hole 121 is also formed to extend in length corresponding to the control valve 60.

An airway intubation tube according to a second embodiment of the present invention will be described with reference to FIG. 8.

In the second embodiment, a breathing channel is located inside the suction channel, and the suction channel surrounds the breathing channel. In another embodiment, on the contrary, the breathing channel may surround the inhalation channel. In addition, in another embodiment, a plurality of suction passages may be provided spaced apart from each other.

An airway intubation tube according to a third embodiment of the present invention will be described with reference to FIG. 9. 9 shows a part corresponding to FIG. 3.

In the third embodiment, the through hole 121 is provided to be inclined, and the boundary wall 120 is provided thicker than other portions of the tube body 10.

The through hole 121 is inclined toward an upper side from the air flow passage to the suction passage.

10 is an enlarged view of part A of FIG. 9. As shown in FIG. 10, the phlegm of the breathing channel is moved to the suction channel and removed to the outside by the suction flow of the suction channel and the inclined through hole 121. That is, in the third embodiment, when the suction flow is applied to the suction passage, the sputum is continuously removed to the outside.

An airway intubation tube according to a fourth embodiment of the present invention will be described with reference to FIG. 11. 11 shows a part corresponding to FIG. 10.

In the fourth embodiment, the through hole 121 is provided inclined in the same manner as in the third embodiment.

The control valve 60 is located in the through hole 121, and the control valve 60 is located only on the side of the breathing passage, and the upper end of the control valve 60 is fixed to the boundary wall 120 and the lower end is not. .

In exhalation as shown in FIG. 12A, the control valve 60 opens the through hole 121 (increases the degree of communication) and the phlegm of the breathing passage moves to the suction passage. As shown in Fig. 12B, in inhalation, the control valve 60 blocks the through hole 121 (reduces the degree of communication), so that the suction capacity of the suction passage is increased.

The above-described embodiments are examples for explaining the present invention, and the present invention is not limited thereto. Since those of ordinary skill in the art to which the present invention pertains will be able to implement the present invention by various modifications therefrom, the technical protection scope of the present invention should be determined by the appended claims.

Claims (14)

In the airway intubation tube having a self-cleaning function,
It includes a tube body that is elongated and has a breathing channel and a suction channel positioned across the boundary wall,
The gas flow of the patient's inhalation and exhalation occurs through the breathing channel,
The suction passage is connected to an external suction device to discharge the patient's sputum to the outside of the tube body,
The boundary wall is formed with a through hole communicating the breathing channel and the suction channel,
It is connected to the tube body, further comprising a control valve for adjusting the communication degree of the through hole according to the gas flow direction in the breathing passage,
The control valve,
The through hole communicates more when exhalation occurs than when inhalation occurs in the breathing channel,
The control valve,
A first portion located in the breathing passage; And
Airway intubation tube comprising a second portion located in the suction passage. delete delete The method of claim 1,
The control valve,
It partially blocks the flow path cross section of the suction flow path,
An airway intubation tube that blocks more of the cross section of the channel when exhalation occurs than when inhalation occurs in the breathing channel. delete The method of claim 1,
The control valve is plate-shaped,
An airway intubation tube in which the area of the first part is larger than the area of the second part. The method of claim 6,
The first portion and the second portion is an airway intubation tube having a surface facing the suction direction of the suction flow path smaller than 180 degrees. The method of claim 1,
Further comprising an adapter connected to one end of the tube body,
A gas exhaust hole is formed at the other end of the tube body,
The through hole is an airway intubation tube formed close to the other end. delete delete delete delete delete The method of claim 1,
Airway intubation tube further comprising a balloon connected to the outer surface of the tube body.

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