KR20200053856A - Intubation tube having self cleaning property - Google Patents

Abstract

The present invention relates to an airway intubation tube. The airway intubation tube having a self-cleaning function includes a tube body having a breathing channel and a suction channel positioned with a boundary wall therebetween while being extended longitudinally. The gas flow due to the inhalation and exhalation of a patient occurs through the breathing channel, the suction channel is connected to an external suction device to discharge the sputum of the patient to the outside of the tube body, and a passage hole communicating the breathing channel and the suction channel is formed on the boundary wall.

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 airway of the patient through which oxygen, medicine, etc. pass. In the case of an unconscious emergency patient, 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 certain length to be inserted into the patient's airway. A balloon is located at the bottom of the airway intubation tube. After airway intubation, the balloon is inflated to a certain size to maintain the interior lining and airtightness of the trachea, that is, to prevent foreign objects in the esophagus from entering the lungs.

Since such an airway intubation tube is contaminated by sputum of a patient, there is a problem in that cleaning must be performed frequently using a suction tube.

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.

The object of the present invention, in the airway intubation tube having a self-cleaning function, includes a tube body having a breathing passage and an inhalation passage which are elongated and positioned with a boundary wall therebetween, and the inhalation of the patient through the respiratory passage and Gas flow of exhalation occurs, the suction passage is connected to an external suction device to discharge the sputum of the patient to the outside of the tube body, the boundary wall is formed with a through hole communicating the breathing passage and the suction passage Is achieved by.

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

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

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

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

The control valve is plate-shaped, 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 be disposed with a surface facing the suction direction of the suction passage smaller than 180 degrees.

It further includes an adapter connected to one end of the tube body, a gas outlet hole is 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 parts of the tube body.

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

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

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

A balloon connected to the outer surface of the tube body may be further included.

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

1 shows an airway intubation tube according to a first embodiment of the present invention,
Figure 2 is a cross-sectional view taken along line II-II 'of Figure 1,
3 is a cross-sectional view along III-III 'of FIG. 1,
4 is a cross-sectional view taken along line 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 modification of the control valve in the airway intubation tube according to the first embodiment of the present invention,
7a and 7b shows the arrangement of the control valve in the airway intubation tube according to the first embodiment of the present invention,
8 shows an airway intubation tube according to a second embodiment of the present invention,
9 shows an airway intubation tube according to a third embodiment of the present invention,
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.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The accompanying drawings are only examples shown in order to describe the technical spirit of the present invention in more detail, so the spirit of the present invention is not limited to the accompanying drawings. In addition, in the accompanying drawings, the size and spacing may be exaggerated, unlike the actual one, in order to explain the relationship between each component.

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

FIG. 1 shows an airway intubation tube according to a 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-section 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 airway of a patient and is close to the distal portion of the tube body 10 and tube body 10 for sucking sputum. It includes a balloon 20 positioned, an adapter 30 connected to the proximal end of the tube body 10, and a balloon air supply pipe 41 and an injection adapter 51 for supplying air to the balloon 20.

The tube body 10 supplies oxygen (air) into the airway of the patient to ensure breathing of the patient, and inhales the sputum of the patient. The tube body 10 is formed in the form of a flexible tube having a certain length. The tube body 10 may be formed of polyethylene, polypropylene, or a flexible semi-rigid flexible resin such that airway intubation is easy. The end of the tube body 10 has a pointed shape for easy insertion.

The gas outlet holes 11 and 12 for supplying oxygen into the airway are formed at the upper end (lower end) of the tube body 10.

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

 The adapter 30 is connected to the proximal end (upper end) of the tube body 10 to which a ventilator, oxygen supply, medical gas supply, anesthesia, inhalation device or other ventilation device is connected. The oxygen supplied to the tube body 10 may be a mixed gas that is not 100% oxygen. The adapter 30 may be modified in an appropriate form for independent connection between each of the breathing passage and the suction passage, which will 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 to inflate the balloon 20 to inflate or deflate the balloon 20 to deflate 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 / extraction means is not limited to the syringe. The injection adapter 51 can be appropriately modified when air injection / exhaust means other than the syringe are used.

The tube body 10 includes a flow path wall 110, and has a breathing flow path and a suction flow path as shown in FIG. The breathing flow path and the suction flow path are partitioned by the boundary wall 120.

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

A passage 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 another embodiment, 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 regulating valve 60 has an a-shape, and includes a first portion 61a and a second portion 61b.

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

The control valve 60 is fixed (connected) to a part of the boundary wall 120 and can move around a part fixed by inhalation and exhalation of the patient. Although the fixed form of the boundary wall 120 of the control valve 60 is not illustrated in the drawing, the control valve 60 may be fixed to the boundary wall 120 using a conventional method such as the use of a separate fixing member.

As shown in FIG. 3, the first part 61a and the second part 61b have faces facing the suction direction of the suction passage 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, the balloon 20 is inflated by injecting air through the syringe into the balloon 20.

In this state, the ventilator or 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 between the tube bodies 10 after airway intubation, and further prevents foreign substances in the esophagus or airways from entering the lungs. In addition, inhalation in the intake passage is performed using an external inhalation device. Inhalation may be continuous or intermittent.

In this situation, the patient's inhalation and exhalation alternately occur, and the patient's sputum enters the respiratory passage through the gas discharge holes (11, 12).

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

Due to the gas flow in the upper direction, the first portion 61a of the regulating valve 60 is lifted by the force in the upper direction. Accordingly, the through hole 121 is opened (the degree of communication increases), and the sputum of the breathing passage is moved to the intake passage through the through hole 121 by the inflow flow of the intake passage.

In the case of inhalation afterwards, a gas flow in a downward direction occurs in the breathing passage as shown in FIG. 5B. The first portion 61a of the regulating valve 60 receives the force in the downward direction by the gas flow in the downward direction, thereby reducing the communication area of the through-hole 121. When this occurs, the degree of communication between the breathing passage and the inhalation passage decreases, and the suction power of the intake passage increases. Due to the increased suction force, sputum introduced into the suction passage during the exhalation process moves upward along the suction direction, and can be discharged to the outside as a result.

In this way, the control valve 60 communicates more through holes 121 when exhalation occurs than when inhalation occurs in the breathing passage. The regulating valve 60 partially blocks the flow path section of the intake flow path, and blocks the flow path 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 self-cleaning is performed while the sputum moves to the suction passage while the control valve 60 moves according to the patient's breath. Therefore, the airway intubation tube 1 can be kept clean for a long time without additional 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 modification of the control valve in the airway intubation tube according to the first embodiment of the present invention, and FIGS. 7A and 7B show the control valve in the airway intubation tube according to the first embodiment of the present invention. It shows the arrangement.

The control valve 60 may be in various forms as shown in FIGS. 6A and 6B.

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

Since the length of the first portion 61a is long and the area is large, it is easily affected by the exhalation and exhalation, so that the operation of the control valve 60 is easily performed.

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

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

Arrangement of the through-hole 121 and the control valve 60 accordingly may be in various forms as shown in FIGS. 7A and 7B. 7A and 7B, only the control valve 60 is shown.

As shown in Figure 7a, the control valve 60 may be arranged in a matrix form. In addition, in order to improve the sputum discharge capacity, the control valve 60 may be provided to extend long in the horizontal direction in the longitudinal direction as shown in FIG. 7B. In the modified example shown in Figure 7b, the through hole 121 is also formed to extend long 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 passage is located inside the inhalation passage, and the inhalation passage surrounds the breathing passage. In another embodiment, on the contrary, the breathing passage may cover the inhaling passage. 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. FIG. 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 parts of the tube body 10.

The through hole 121 is inclined toward the upper side as it goes from the air flow path to the suction flow path.

FIG. 10 is an enlarged portion A of FIG. 9. As shown in FIG. 10, the sputum of the breathing passage is removed to the outside by moving to the suction passage by the suction flow and the inclined passage hole 121 of the suction passage. That is, in the third embodiment, when suction flow is applied to the suction passage, 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. FIG. 11 shows a part corresponding to FIG. 10.

In the fourth embodiment, the through hole 121 is provided to be 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 breath passage, and the upper end of the control valve 60 is fixed to the boundary wall 120 and the lower end is not fixed. .

As shown in Figure 12a, in the exhalation, the control valve 60 opens the through hole 121 (increased communication degree) and the sputum of the breathing passage moves to the suction passage. As shown in FIG. 12B, in the inhalation, the control valve 60 blocks the through hole 121 (reducing the degree of communication), thereby increasing the suction ability of the suction passage.

The above-described embodiments are examples for explaining the present invention, and the present invention is not limited thereto. Any person having ordinary knowledge in the technical field to which the present invention pertains will be able to implement the present invention with various modifications therefrom, and thus the technical protection scope of the present invention should be defined by the appended claims.

Claims (14)

In the airway intubation tube having a self-cleaning function,
It is elongated and includes a tube body having a breathing flow path and a suction flow path positioned between the boundary walls.
Gas flow of inhalation and exhalation of the patient occurs through the breathing passage,
The suction passage is connected to an external suction device to discharge the patient's phlegm to the outside of the tube body,
An airway intubation tube having a through hole communicating with the breathing passage and the suction passage on the boundary wall. According to claim 1,
Airway intubation tube is connected to the tube body, further comprising a control valve for adjusting the degree of communication of the through hole according to the gas flow direction in the breathing passage. According to claim 2,
The control valve,
An airway intubation tube communicating more of the passage hole when exhalation occurs than when inhalation occurs in the breathing passage. According to claim 3,
The control valve,
Partially blocking the flow path section of the suction passage,
An airway intubation tube that blocks more of the cross section of the flow channel when exhalation occurs than when inhalation occurs in the breathing channel. According to claim 3,
The control valve,
A first portion located in the breathing passage; And
Airway intubation tube comprising a second portion located in the suction passage. The method of claim 5,
The control valve is plate-shaped,
The airway intubation tube having an area of the first portion larger than an area of the second portion. The method of claim 6,
The first part and the second part are airway intubation tubes having a surface facing the suction direction of the suction passage smaller than 180 degrees. According to claim 1,
Further comprising an adapter connected to one end of the tube body,
A gas discharge 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. According to claim 1,
The through hole,
It is formed to be inclined along the longitudinal direction of the tube body,
The airway intubation tube increases along the suction direction as it goes from the breathing passage to the suction passage. The method of claim 9,
In the tube body,
The boundary wall is formed thicker than the other parts of the tube body airway intubation tube. The method of claim 9,
Airway intubation tube is connected to the tube body, further comprising a control valve for adjusting the degree of communication of the through hole according to the gas flow direction in the breathing passage. The method of claim 11,
The control valve,
An airway intubation tube communicating more of the passage hole when exhalation occurs than when inhalation occurs in the breathing passage. The method of claim 12,
The control valve,
Airway intubation tube located only in the air passage. The method according to any one of claims 1 to 13,
Airway intubation tube further comprising a balloon connected to the outer surface of the tube body.

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