KR20200001056A - Endotracheal intubation tube with flexible in region of body temperature - Google Patents

Abstract

Provided is an endotracheal intubation tube. An endotracheal intubation tube according to one embodiment of the present application is a tube which is intubated into a respiratory tract, and comprises a hollow tube (10); an inner skin (20) which is provided to surround a lateral side of the tube (10) and is based on a material whose softness is changed in a body temperature region; and an outer skin (30) which surrounds a lateral side of the inner skin (20). The inner skin (20) is based on a material existing in one state of a glassy transition state, a rubbery plateau state, and a rubbery flow state in the body temperature region.

Description

ENDOTRACHEAL INTUBATION TUBE WITH FLEXIBLE IN REGION OF BODY TEMPERATURE

The present application relates to a tube for tracheal intubation that is flexible in the body temperature region.

Tracheal intubation tube refers to a tube that is inserted into the airway to secure the airway. Patients with unconscious or faint consciousness will have their tongue rolled up in the direction of the airway obstruction, so a tube that maintains the airway should be inserted and maintained, and an endotracheal intubation tube is inserted through the nasal cavity or the oral cavity and the bronchus of the human body Part is inserted.

The material of the tracheal intubation tube has a certain strength to maintain the shape of the tube so that the operator can support the force pushing the tube up to the airway, so that the intubation can be smoothly inserted without unnecessary bending. However, due to the rigidity of such tracheal intubation tubes, patients who use intubation tubes for a long period of time are subject to continuous and concentrated pressure on the parts in contact with the tubes (FIG. 1). This can disrupt blood circulation in the area, causing tissue weakness and even necrosis of tissue cells.

Therefore, while the intubation can be smooth without the phenomenon during intubation, there is a need for tracheal intubation tube that does not have side effects such as tissue necrosis during long-term intubation.

Korea Patent Registration No. 10-14920233 (2015.02.04) Japanese Laid-Open Patent Publication No. 2016-527024 (2016.09.08)

The present application relates to an intubation tube having a strength that allows smooth intubation without bending during intubation, and does not cause side effects such as tissue necrosis even when prolonged intubation due to a change in ductility in the body temperature region.

One embodiment of the present application for solving the above problems, the tube is inserted into the airway, the hollow tube 10, provided to surround the side of the tube 10, the ductility is changed in the body temperature region The inner shell 20 of the material and the outer shell 30 surrounding the side of the endothelial 20, the endothelial 20 is a glass transition state (Glassy Transition State), rubber flat state (Rubbery Plateau State) in the body temperature region The present invention provides a tube for tracheal intubation, which is made of a material existing in any one of a rubbery fluid state and a rubbery flow state.

In one embodiment, the endothelial 20 may be made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region.

In one embodiment, the endothelial 20 may be thicker than the outer skin 30.

In one embodiment, the outer shell 30 may be made of a material having a yield strength value of 1450 psi or more and 3600 psi or less.

In one embodiment, the portion of the tube that abuts the tissue of the object to be inserted may be deformed to have a shape corresponding to that of the abutting tissue.

In addition, the present application is a tube inserted into the airway, the hollow tube 10 and has a size that can surround the tube 10, and includes a holder 40 detachably mounted to the tube (10) The holder 40 is provided to surround the hollow first sheath 41 and the side surfaces of the first sheath 41, and the endothelium 42 and the endothelium of the material in which the ductility changes in the body temperature region. A second sheath 43 surrounding the side of the shell 42, the endothelial 42 having a glassy transition state, a rubbery plateau state and a rubbery fluid state in the body temperature region. It provides a tube for tracheal intubation, made of a material present in any one of the flow state (state).

In one embodiment, the endothelium 42 extends from a first portion 41a to a second portion 42a facing the first portion 41a to surround the side of the first envelope 41. The thickness may be thicker farther from the first portion 41a.

In one embodiment, the endothelial 42 may be made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region.

In one embodiment, the holder 40 may have a length of 8cm to 10cm.

In one embodiment, the holder 40 may be mounted at the position of the tube 10 corresponding to the tongue portion after the front teeth of the object to be inserted.

In one embodiment, the tube 10 may be formed with a pair of projections (11, 12) for fixing the position of the holder 40 relative to the tube (10).

In one embodiment, the first shell 41 and the second shell 43 may be made of a material having a yield strength value of 1450 psi or more and 3600 psi or less.

In one embodiment, the portion of the holder 40 in contact with the tissue of the object to be inserted may be deformed to have a shape corresponding to that of the tissue in contact.

In addition, the present application is a tube inserted into the airway, the hollow tube 10, the second portion facing the first portion 13 from the first portion 13 to surround the side of the tube ( 14, an endothelial material 50 having a ductility change in the body temperature region, and an outer skin 60 surrounding a side surface of the endothelial 50, wherein the endothelial 50 comprises the first portion 13. The endothelium 50 is thicker and farther away from the body, and the endothelium 50 is present in any one of a glassy transition state, a rubbery plateau state, and a rubbery fluid state in the body temperature region. Provided is a tube for tracheal intubation, made of material.

In one embodiment, the endothelial 50 may be made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region.

In one embodiment, the outer shell 60 may be made of a material having a yield strength value of 1450 psi or more and 3600 psi or less.

In one embodiment, the portion of the tube that abuts the tissue of the object to be inserted may be deformed to have a shape corresponding to that of the abutting tissue.

According to the present application, since the load applied to the tissue in contact with the tube is dispersed by including the endothelium in which the ductility is changed in the body temperature region, the problem of necrosis of the tissue in contact with the tube even during tube intubation in the past is solved.

In addition, the envelope surrounding the endothelium is made of a material having a certain strength or more, so that the operator can support the force to push the tube to the airway during intubation can be inserted smoothly without unnecessary bending in an emergency.

Various embodiments are possible. The holder 40 is detachably mounted to the tube 10 so that the holder 40 is positioned only at the portion where the load is concentrated, thereby reducing the cost, and the endothelial 50 corresponding to the portion at which the load is concentrated. By designing the thickest, it is possible to maximize the contact surface with the tissue to maximize the effect of the load distribution.

1 is a cross-sectional view illustrating a conventional tracheal intubation tube.
Fig. 2 is a schematic perspective view of a first embodiment tracheal intubation tube 100A.
3 is a cross-sectional view taken along line AA of FIG. 2.
4 is a cross-sectional view for explaining the shape of the tracheal intubation tube 100A in the body temperature region.
5 is a graph for explaining the thermal properties of the polymer.
6 is a schematic perspective view of a second embodiment tracheal intubation tube 100B.
FIG. 7 is a cross-sectional view (a) taken along the line AA of FIG. 6 and a cross-sectional view taken along the line BB.
8 is a cross-sectional view for explaining the portion where the load is concentrated when inserting the tube for tracheal intubation.
9 is a cross-sectional view of a third embodiment tracheal intubation tube 100C.

Hereinafter, the term "temperature region" refers to the body temperature of the subject to be inserted, and when the subject to be inserted is a human body, the temperature range may be 35 ° C to 40 ° C, and specifically 36 ° C to 38 ° C. Can be.

Hereinafter, the term "insertion subject" means the object into which the tracheal intubation tube is inserted. When the human body is targeted, the human may correspond to this.

With reference to the accompanying drawings, it will be described in detail for the tracheal intubation tube according to an embodiment of the present application.

1. The first Example

First, the tracheal intubation tube 100A according to the first embodiment of the present application will be described in detail with reference to FIGS. 2 to 5. FIG. 2 is a schematic perspective view of the tracheal intubation tube 100A of the first embodiment, FIG. 3 is a cross-sectional view taken along line AA of FIG. 2, and FIG. 4 is a shape of the tracheal intubation tube 100A in the body temperature region. It is sectional drawing for demonstrating, FIG. 5 is a graph for demonstrating the thermal property of a polymer.

Fig. 2 is a schematic perspective view of a first embodiment tracheal intubation tube 100A. Referring to FIG. 2, the tracheal intubation tube 100A according to the first embodiment of the present application has a tubular shape as a whole, and is located outside the first end 110 and the insertion object located in the airway of the insertion object. And a second end 120 positioned to be connected to an oxygen supply device such as a medical gas supply, anesthesia, oxygen supply, aeration device, and ventilator. Specifically, the second end 120 is equipped with a cap 200 may be connected to the oxygen supply device such as a medical gas supply, anesthesia, oxygen supply, aeration device and ventilator.

3 is a cross-sectional view taken along the line A-A of FIG. Referring to FIG. 3, a first embodiment tracheal intubation tube 100A includes a tube 10, an endothelial 20, and an outer shell 30 from an inner side to an outer side.

The tube 10 may be the same material as that used for the conventional tracheal intubation tube, and as an example, the polyvinyl chloride (PVC) material may correspond thereto.

Endothelial 20 is provided to surround the side of the tube 10, it may be made of a material that changes the ductility in the body temperature region. In detail, the endothelial 20 may be made of a material that exhibits flexibility in the body temperature region and maximizes a contact surface contacting the tissue of the object to be inserted, as shown in FIG. 4. More specifically, it may be made of a material present in any one of a glass transition state, a rubber flat state, and a rubbery flow state in the body temperature region.

Referring to Figure 5, it will be described in detail for the thermal properties of the polymer (Polymer). Unlike general molecules, polymers have unique thermal properties because monomers are connected for a long time. The polymers exist in any one of five states according to temperature.

The "Glassy State" is a hard and brittle state in which the polymer in this state can only vibrate and short-range rotating.

The "Glassy Transition State" means that the elastic modulus decreases rapidly as the temperature rises, and unlike the glass state, the long-term molecular motion starts, and apparently the hard material becomes somewhat flexible, and there is a sudden change in many physical properties. It is a condition that results.

"Rubbery Plateau State" means that the diffusion of molecules becomes more active, and in the case of thermoplastics, the modulus of elasticity decreases slowly as the temperature rises, and in the case of thermosetting resins, the modulus of elasticity is constant as the temperature rises. It is a state to keep.

"Rubbery Flow State" refers to a state in which molecular motion is very active and a massive full-scale parallel movement is possible. The polymer material in this state is dependent on the experimental time depending on the experimental phase, and the elasticity is observed by the experiment of the short experiment time, and the double-sided property is observed by the experiment of the long experiment time.

"Liquid State" refers to a state with a complete liquid-like flow, such as a fluid.

Here, the endothelium 20 exists in a glass state (Glassy State) at room temperature, but in any of the glass transition state (Glassy Transition State), rubber flat state (Rubbery Plateau State) and rubber fluid state (Rubbery Flow State) in the body temperature region It is preferable to be present in one state to have flexibility, and as a result, as shown in FIG. 4, the shape of the tube 100A contacting the tissue of the object to be inserted has a shape corresponding to that of the contacting tissue. As a result, pressure applied to the tissue is dispersed to prevent side effects such as tissue necrosis due to long-term intubation tube maintenance.

Specifically, the endothelium 30 may be made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region, and for example, any one selected from the group consisting of PCL (PolyCaproLactone), gelatin (Gelatin), and hydrogel (Hydrogel) One can be applied. When the material of the endothelial 30 has a modulus of elasticity greater than 0.3 GPa, it may not have sufficient flexibility in the body temperature region, and thus pressure may be concentrated at the contacting portion when the intubation tube is maintained for a long time, thereby causing tissue necrosis.

The outer shell 30 is a portion surrounding the side surface of the inner shell 20, and is a portion forming an outer portion of the tube 100A. When the tube 100A is inserted into the airway, the tube 100A comes into contact with the tissue of the object to be inserted, and the tube 100A may be made of a material having a predetermined strength or more so that the tube 100A can be inserted without unnecessary bending, and the endothelial 20 It may be made of a material having a certain degree of flexibility to reflect the shape deformation in the body temperature region of the) to change the shape.

The outer shell 30 may be provided thinner than the endothelial 20, and thus, even if the outer shell 30 is made of a material having a predetermined strength or higher, the outer shell 30 may reflect the shape deformation of the endothelial 20 in the body temperature region. Specifically, the outer shell 30 may be made of a material having a value of yield strength of 1450 psi or more and 3600 psi or less. For example, a flexible PVC material may be applied.

2. Second Example

6 and 7, the tracheal intubation tube 100B according to the second embodiment of the present application will be described in detail. FIG. 6 is a schematic perspective view of a tube 100B for tracheal intubation of a second embodiment, and FIG. 7 is a cross-sectional view (a) along line A-A of FIG. 6 and a cross-sectional view (b) along line B-B.

First Embodiment The biggest difference is that the parts corresponding to the endothelium 20 and the outer shell 30 of the tracheal intubation tube 100A are provided as separate holders 40 and detachably mounted to the tube 10. to be.

When the tracheal intubation tube is inserted to ensure long-term airway, the tongue portion (about 8 cm to 10 cm) after the incisor is continuously pressurized by the tube as shown in FIG. 8.

Thus, rather than enclosing the entire tube with the endothelium 20 and the sheath 30, it would be more cost effective to construct the endothelium 20 and the sheath 30 only at the portion where pressure is concentrated.

Second Embodiment The tracheal intubation tube 100B is designed such that a holder 40 having a length of about 8 cm to 10 cm fits into the tube 10, and the inner diameter of the holder 40 corresponds to the outer diameter of the tube 10. When it is mounted on the tube 10 may be such that there is no separate space between the tube 10 and the holder 40.

Referring to FIG. 7, the holder 40 includes a hollow first sheath 41, an inner sheath 42, and a second sheath 43.

The first sheath 41 is a part in contact with the tube 10, and may be made of the same material as the sheath 30 of the first embodiment tube 100A. That is, the first shell 41 may be made of a material having a yield strength of 1450 psi or more and 3600 psi or less. For example, a flexible PVC material may be applied.

The endothelial 42 is a portion surrounding the side surface of the first outer shell 41 and may be made of the same material as the endothelial 10 of the tube 100A of the first embodiment. That is, the endothelium 42 exists in the glass state (Glassy State) at room temperature, but in any of the glass transition state (Glassy Transition State), rubber flat state (Rubbery Plateau State) and rubber fluid state (Rubbery Flow State) in the body temperature region It can be made of a material having a flexible state to exist in one state, specifically, may be made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region, for example, PCL (PolyCaproLactone), gelatin (Gelatin) and hydrogel Any one selected from the group consisting of (Hydrogel) can be applied.

In addition, the endothelium 42 may extend in both directions from the first portion 41a of the first envelope 41 to the second portion 41b facing it, as in the third embodiment endothelium 50 described below. The thickness may be thicker toward the second portion 41b. That is, the thickness of the inner shell 42 may be the thinnest in the first portion 41a of the first outer shell 41, and the second portion 41b facing the outer shell 42 may be the thickest.

The second sheath 43 is a portion surrounding the side of the inner sheath 42, and may be made of the same material as the sheath 30 of the first embodiment tube 100A. That is, the second sheath 43 may be made of a material having a yield strength of 1450 psi or more and 3600 psi or less. For example, a flexible PVC material may be applied. In addition, as in the first embodiment, the second shell 43 may be made of a material having a predetermined strength or more so that the tube 100B is inserted thinner than the inner shell 42 so that the tube 100B can be inserted without unnecessary bending. It may have a certain degree of flexibility to reflect the shape deformation in the body temperature region of the endothelium 42 to change the shape.

The inner diameter of the holder 40 is provided to correspond (preferably the same) to the outer diameter of the tube 10 and is mounted to the tube 10 in a tight fit, but in order to provide an improved holding force, ie holder 40 In order to fix the position with respect to the tube 10 of the protrusions 10, protrusions 11 and 12 may be formed to protrude. The intervals of the protrusions 11 and 12 may be the same as the length of the holder 40, and only a pair of protrusions 11 and 12 are shown in FIG. 6, but different pairs of protrusions are provided for different anatomy for each object to be inserted. It is also possible to fix the holder 40 to the tube 10 by fully reflecting the enemy structure.

3. Third Example

Referring to Figure 9, the tracheal intubation tube 100C according to the third embodiment of the present application will be described in detail. 9 is a cross-sectional view of a third embodiment tracheal intubation tube 100C.

Third Embodiment The tracheal intubation tube 100C is characterized in that the thickness of the endothelium 50 surrounding the tube 10 is not constant.

Referring to FIG. 9, the endothelium 50 of the third embodiment tube 100C extends in both directions from the first portion 13 to the second portion 14 to surround the side of the tube 10. Here, the thickness of the endothelium 50 may be the thinnest of the first portion 13, the second portion 14 may be the thickest, and more specifically, the first portion 13 may face the second portion 14. The thicker it is, the thicker it can be. That is, as the distance from the first portion 13 increases, the thickness of the endothelium 50 may increase.

This is based on the fact that only a predetermined surface of the tracheal intubation tube 100C is in contact with the tissue of the insertion object, and when the second part 14 having a thick endothelial 50 is in contact with the tissue of the insertion object, the intubation is performed. Compared with the first and second embodiments, the contact surface of the tube 100C and the tissue is maximized so that the effect of the load distribution can also be maximized.

The endothelium 50 may be made of the same material as the endothelium 10 and 42 of the tubes 100A and 100B of the first and second embodiments. That is, the endothelium 50 exists in the glass state (Glassy State) at room temperature, but in any of the glass transition state (Glassy Transition State), rubber flat state (Rubbery Plateau State) and rubber fluid state (Rubbery Flow State) in the body temperature region It can be made of a material having a flexible state to exist in one state, specifically, may be made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region, for example, PCL (PolyCaproLactone), gelatin (Gelatin) and hydrogel Any one selected from the group consisting of (Hydrogel) can be applied.

The outer shell 60 is a portion surrounding the side surface of the inner shell 50, and may be made of the same material as the outer shells 30, 41, and 43 of the first and second exemplary tubes 100A and 100B. That is, the outer shell 60 may be made of a material having a value of yield strength of 1450 psi or more and 3600 psi or less. For example, the flexible PVC material may be applied. In addition, like the first and second embodiments, the outer shell 60 is made of a material having a predetermined strength or more so that the outer shell 60 is thinner than the inner shell 50 so that the tube 100C can be inserted without unnecessary bending during the insertion process. It may have a certain degree of flexibility to reflect the shape deformation in the body temperature region of the endothelium 50 so that the shape may change.

In the above specification, the present invention has been described with reference to the embodiments shown in the drawings so that those skilled in the art can easily understand and reproduce the present application, which is merely exemplary, and those skilled in the art can make various modifications and equivalents from the embodiments of the present application. It will be appreciated that embodiments are possible. Therefore, the protection scope of the present application will be defined by the claims.

10: tube
20: endothelial
30: shell
40: holder
41: first shell
42: endothelium
43: second envelope
50: endothelial
60: sheath
100: tube
110: first end
120: second end
200: cap

Claims (17)

A tube inserted into the airway,
Hollow tube 10;
Endothelial 20 of the material provided to surround the side of the tube 10, the ductility changes in the body temperature region; And
It includes; the outer shell 30 surrounding the side of the endothelial 20;
The endothelium 20 is made of a material present in any one of a glass transition state, a rubber flat state, and a rubbery fluid state in a body temperature region.
Tube for tracheal intubation.
The method of claim 1,
The endothelium 20 is made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region,
Tube for tracheal intubation.
The method of claim 2,
The inner shell 20 is thicker than the outer shell 30,
Tube for tracheal intubation.
The method of claim 3,
The outer shell 30 is made of a material having a yield strength value of 1450 psi or more and 3600 psi or less,
Tube for tracheal intubation.
The method according to any one of claims 1 to 4,
The portion of the tube that abuts the tissue of the object to be inserted is deformed so that its shape has a shape corresponding to that of the abutting tissue.
Tube for tracheal intubation.
A tube inserted into the airway,
Hollow tube 10; And
And a holder 40 having a size to surround the tube 10 and detachably mounted to the tube 10.
The holder 40,
Hollow first shell 41;
An inner shell 42 of a material provided to surround the side surface of the first outer shell 41 and having a ductility change in the body temperature region; And
And a second sheath 43 surrounding the side of the endothelium 42.
The endothelium 42 is made of a material present in any one of a glass transition state, a rubber flat state, and a rubbery fluid state in a body temperature region.
Tube for tracheal intubation.
The method of claim 6,
The endothelium 42 extends from the first portion 41a to the second portion 42a facing the first portion 41a so as to surround the side of the first shell 41, the thickness of which is defined as the first portion 41a. The thicker one part 41a is,
Tube for tracheal intubation.
The method of claim 6,
The endothelium 42 is made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region,
Tube for tracheal intubation.
The method of claim 8,
The holder 40 has a length of 8cm to 10cm,
Tube for tracheal intubation.
The method of claim 9,
The holder 40 is mounted at the position of the tube 10 corresponding to the tongue portion after the front teeth of the object to be inserted,
Tube for tracheal intubation.
The method of claim 10,
The tube 10 is formed with a pair of protrusions 11 and 12 fixing the position of the holder 40 with respect to the tube 10,
Tube for tracheal intubation.
The method of claim 6,
The first sheath 41 and the second sheath 43 is made of a material having a yield strength value of 1450 psi or more and 3600 psi or less,
Tube for tracheal intubation.
The method according to any one of claims 6 to 12,
The portion of the holder 40 in contact with the tissue of the object to be inserted is deformed in shape so as to have a shape corresponding to that of the tissue in contact.
Tube for tracheal intubation.
A tube inserted into the airway,
Hollow tube 10;
Endothelial material 50 of the material extending from the first portion 13 to the second portion 14 facing the first portion 13 to surround the side of the tube 10, the ductility changes in the body temperature region ; And
It includes; the outer shell surrounding the side of the endothelial 50;
The endothelium 50 is thicker farther from the first portion 13,
The endothelium 50 is made of a material present in any one of a glass transition state, a rubber flat state, and a rubbery fluid state in a body temperature region.
Tube for tracheal intubation.
The method of claim 14,
The endothelium 50 is made of a material having an elastic modulus value of 0.3 GPa or less in the body temperature region,
Tube for tracheal intubation.
The method of claim 15,
The outer shell 60 is made of a material having a yield strength value of 1450 psi or more and 3600 psi or less,
Tube for tracheal intubation.
The method according to any one of claims 14 to 16,
The portion of the tube that abuts the tissue of the object to be inserted is deformed so that its shape has a shape corresponding to that of the abutting tissue.
Tube for tracheal intubation.

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