Trachea cannula with pressure indicating device

Abstract

The utility model relates to a trachea cannula with a pressure indicating device, which comprises a breather pipe, one end of the breather pipe is fixedly sleeved with a balloon, and one side of the balloon is provided with an inflating pipe; one end of the inflating pipe is connected with a pressure indicating device; the other end of the ventilating pipe is fixedly connected with an air pipe joint; the air pressure detection device is simple in structure, the pressure indicating device is arranged and connected with the balloon, so that the air pressure detection device can meet the use requirements of different operators, the air pressure detection is accurate, and the use range of the air pressure detection device is expanded.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to an endotracheal tube with a pressure indicator. Background Technology

[0002] An endotracheal tube (or tracheal tube) is a medical device that involves inserting a specially designed tube through the glottis into the trachea. When using an endotracheal tube, to prevent secretions from the mouth and nose from entering the trachea, the pressure of the cuff or balloon on the tube must be maintained within a preset range. Too low a pressure can easily cause aspiration and lung infection, while too high a pressure can easily damage the tracheal mucosa.

[0003] Most existing intubation airways are equipped with balloons. After intubation, the balloons need to be inflated, and there are certain requirements for the internal air pressure. Usually, medical staff need to use other instruments to detect or monitor the internal air pressure of the balloon. If the balloon air pressure is not within the standard range, it may cause harm to the patient. It is time-consuming and laborious to use external equipment to check the internal air pressure of the balloon, which increases the cost of using the equipment.

[0004] Therefore, it is necessary to improve upon the above-mentioned issues. Utility Model Content

[0005] The purpose of this invention is to provide a tracheal intubation tube with a pressure indicator that has a simpler structure, a more reasonable design, better reliability, more accurate air pressure detection, and improved practicality of the equipment.

[0006] To achieve the above objectives, the technical solution adopted by this utility model patent is: a tracheal intubation tube with a pressure indicator, including a ventilation tube, one end of which is fixedly sleeved with a balloon, and an inflation tube is installed on one side of the balloon; one end of the inflation tube is connected to a pressure indicator, and the other end of the ventilation tube is fixedly connected to a tracheal connector.

[0007] As a preferred embodiment of this utility model, the pressure indicating device includes a housing, a one-way valve, a sleeve, and a lower cover; the housing has a sleeve receiving cavity, a one-way valve receiving cavity, and a first vent hole; the sleeve receiving cavity and the one-way valve receiving cavity are connected through the first vent hole, the one-way valve is assembled in the one-way valve receiving cavity, the sleeve is movably disposed in the sleeve receiving cavity and abuts against the cavity wall of the sleeve receiving cavity; the lower cover is assembled at the end of the housing and connected to the inflation tube.

[0008] As a preferred embodiment of this utility model, the end of the one-way valve is formed with an air inlet; a syringe is connected to the air inlet of the one-way valve; the end of the lower cover is formed with an air outlet, and an inflation tube is inserted into the air outlet.

[0009] As a preferred embodiment of this utility model, the sleeve is a freely expandable corrugated structure, and an indicator line is mounted on the side of the sleeve near the one-way valve, with the indicator line arranged in a ring on the sleeve.

[0010] As a preferred embodiment of this utility model, the lower cover includes a limiting groove in the middle and a limiting connecting plate at the end; wherein, the end of the sleeve is fitted into the limiting groove, and the limiting connecting plate abuts against the end of the shell; a plurality of second vent holes are arranged on the side wall between the limiting groove and the limiting connecting plate, and the plurality of second vent holes are connected to the air outlet.

[0011] As a preferred embodiment of this utility model, the shell is made of transparent material, and scale lines are arranged around the circumference of the shell; a gap is left between the scale lines and the indicator lines.

[0012] As a preferred embodiment of this utility model, the housing is equipped with a positioning part for stabilizing the grip pressure indicator.

[0013] As a preferred embodiment of this utility model, the positioning part includes multiple arc-shaped recesses, which are arranged on the side near the air inlet and are equidistantly distributed along the circumference of the housing.

[0014] As a preferred embodiment of this utility model, multiple arc-shaped recesses are arranged corresponding to the positions of the one-way valve receiving cavity and the first vent hole.

[0015] As a preferred embodiment of this utility model, the connection between the multiple arc-shaped recesses and the shell has a rounded transition structure.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model has a simple structure. By setting a pressure indicator device and connecting the pressure indicator device to the balloon, it can adapt to the usage needs of different operators, and the air pressure detection is accurate, thus expanding the scope of application of the product.

[0018] 2. The sheath of this invention is movably disposed within the sheath-receiving cavity and abuts against the cavity wall, so that changes in the gas pressure entering through the inlet can push the sheath to move within the cavity. An indicator line is provided on the sheath, facing the transparent area of ​​the housing. When the pressure inside the housing changes, the gas pressure pushes the sheath within the cavity, thereby moving the indicator line along the housing. When the indicator line reaches a scale line on the housing, the user can obtain the real-time pressure value. Since no other components are required, the pressure indicator is less susceptible to damage from impacts or drops. The transparent area around the housing allows for accurate determination of the pressure within the sheath.

[0019] 3. This utility model has an ingenious design; the scale lines on the pressure indicator make it easier to view the pressure inside the bladder more intuitively, without the need for external equipment, thus improving the practicality of the equipment and reducing its operating costs.

[0020] 4. This utility model has multiple arc-shaped recesses on the outside of the shell, which increase the friction coefficient between the hand and the shell when holding the device, making the grip more stable and preventing slippage from affecting the stability of the test. Moreover, the multiple arc-shaped recesses work together with the fingers to make the grip more comfortable. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of an endotracheal tube with a pressure indicator according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the pressure indicating device according to an embodiment of the present invention;

[0023] Figure 3 This is an exploded view of the pressure indicating device according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the lower cover in an embodiment of the present utility model;

[0025] Explanation of reference numerals in the attached drawings: 1. Ventilation tube; 2. Balloon; 3. Inflation tube; 4. Positioning part; 5. Air tube connector; 6. Scale line; 7. Arc-shaped recess; 8. Lower cover; 10. Pressure indicator; 11. Housing; 12. One-way valve; 13. Cuff; 14. Indicator line; 15. Air inlet; 16. Cuff receiving cavity; 20. One-way valve receiving cavity; 21. First vent hole; 22. Limiting groove; 80. Limiting connecting plate; 81. Second vent hole; 82. Cuff connecting hole; 83. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0028] like Figure 1 As shown, Figure 1 This is a cross-sectional view of an endotracheal cannula with a pressure indicator according to an embodiment of the present invention. The endotracheal cannula includes a ventilation tube 1, with a balloon 2 fixedly sleeved at one end of the ventilation tube 1. An inflation tube 3 is installed on one side of the balloon 2. One end of the inflation tube 3 is connected to a pressure indicator 10, and the other end of the ventilation tube 1 is fixedly connected to an endotracheal connector 5. The present invention has a simple structure. By setting a pressure indicator and connecting it to the balloon, it can adapt to the needs of different operators, provides accurate air pressure detection, and expands the product's application range.

[0029] like Figures 2-3 As shown, Figure 2 This is a schematic diagram of the pressure indicating device according to an embodiment of the present invention; Figure 3 This is an exploded view of the pressure indicator device according to an embodiment of the present invention.

[0030] Specifically, the pressure indicating device 10 includes a housing 11, a one-way valve 12, a sleeve 13, and a lower cover 8; the housing 11 has a sleeve receiving cavity 20, a one-way valve receiving cavity 21, and a first vent hole 22; the sleeve receiving cavity 20 and the one-way valve receiving cavity 21 are connected through the first vent hole 22, the one-way valve 12 is assembled in the one-way valve receiving cavity 21, the sleeve 13 is movably disposed in the sleeve receiving cavity 20 and abuts against the cavity wall of the sleeve receiving cavity 20; the lower cover 8 is assembled at the end of the housing 11 and connected to the inflation tube 3.

[0031] This utility model features a movably mounted cuff within a cuff-receiving cavity, abutting against the cavity wall. This allows the cuff to move within the cavity when the gas pressure entering through the inlet changes. An indicator line is provided on the cuff, facing the transparent area of ​​the housing. When the pressure inside the housing changes, the gas pressure pushes the cuff within the cavity, causing the indicator line on the cuff to move along the housing. When the indicator line reaches a scale line on the housing, the user can obtain the real-time pressure value. Since no other components are required, the pressure indicator is less susceptible to damage from impacts or drops. The transparent area around the housing allows for accurate determination of the pressure within the cuff.

[0032] An air inlet 15 is formed at the end of the one-way valve 12; a syringe is connected to the air inlet 15 of the one-way valve 12; an air outlet 16 is formed at the end of the lower cover 8, and the inflation tube 3 is inserted into the air outlet 16; the sheath 13 is a freely retractable corrugated structure, and an indicator line 14 is mounted on the side of the sheath 13 near the one-way valve 12, and the indicator line 14 is arranged in a ring on the sheath 13; the sheath 13 is made of silicone or other elastic material, and the corrugated structure is a multi-pleated structure, with one end closed and the other end open, and the closed end is located near the first vent 22.

[0033] like Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of the lower cover in an embodiment of the present utility model; the lower cover 8 includes a limiting groove 80 provided in the middle and a limiting connecting plate 81 provided at the end; wherein, the end of the sleeve 13 is fitted into the limiting groove 80, and the limiting connecting plate 81 abuts against the end of the housing 11; and the limiting connecting plate 81 is fixedly connected to the housing 11, and a plurality of second vent holes 82 are provided on the side wall between the limiting groove 80 and the limiting connecting plate 81, and the plurality of second vent holes 82 are connected to the air outlet 16.

[0034] The lower cover 8 also includes two sleeve communication holes 83, which are located on both sides of the pipe of the air outlet 16. The two sleeve communication holes 83 are connected to the inner cavity of the sleeve 13, so that the sleeve 13 can maintain an accurate relative air pressure when the air plug is in use. The relative air pressure of the air plug is generally 2 kPa. Setting the sleeve communication holes 83 can ensure that the relative pressure indication is more accurate.

[0035] The shell 11 is made of transparent material, and scale lines 6 are arranged around the circumference of the shell 11; there is a gap between the scale lines 6 and the indicator lines 14 on the sheath 13 in the initial state.

[0036] When balloon 2 is inflated, the internal pressure of balloon 2 increases, the cuff 13 compresses, and the indicator line 14 on the cuff 13 shifts towards the bottom of the pressure indicator device 10. Conversely, when balloon 2 is deflated or when balloon 2 leaks, the internal pressure of balloon 2 decreases, the cuff 13 expands, and the indicator line 14 on the cuff 13 shifts towards the fixed end of the pressure indicator device 10.

[0037] When inflating balloon 2, the doctor can observe the displacement of the indicator line 14 on the cuff 13 to judge the internal pressure of balloon 2. When the internal pressure of balloon 2 reaches the required pressure, the doctor stops inflation. Similarly, after inflation is completed, if the internal pressure of balloon 2 increases or decreases, the doctor can take measures to de-inflate or inflate balloon 2 according to the displacement of the indicator line 14 on the cuff 13, so as to maintain the internal pressure of cuff 13 at an appropriate level.

[0038] like Figure 2and Figure 3 As shown, the housing 11 is equipped with a positioning part 4 for stabilizing the grip pressure indicator 10; specifically, the positioning part 4 includes a plurality of arc-shaped recesses 7, which are arranged on the side near the air inlet 15 and are equidistantly arranged along the circumference of the housing 11.

[0039] This utility model provides multiple arc-shaped recesses 7 on the outer side of the housing 11. These arc-shaped recesses 7 increase the coefficient of friction between the hand and the housing 11 when held, making the grip more stable and preventing slippage that could affect the stability of the detection. Furthermore, the multiple arc-shaped recesses 7 work in conjunction with the fingers to make the grip more comfortable.

[0040] Multiple arc-shaped recesses 7 are arranged corresponding to the one-way valve receiving cavity 21 and the first vent 22, making the structure of the entire pressure indicator device 10 more ingenious, with a higher degree of fit, and in line with ergonomics. The operator will not experience strong wrist pain after holding it for a long time, thus improving efficiency.

[0041] The multiple arc-shaped recesses 7 are connected to the housing 11 with a rounded transition structure; the concave surface of the arc-shaped recess, i.e. the lower surface, is the contact surface with the matching housing; the arc-shaped recesses can fit snugly with the housing, making it convenient for the operator to clamp and grip.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0043] Although this document frequently uses reference numerals from the accompanying drawings, such as 1 for the ventilator, 2 for the balloon, 3 for the inflation tube, 4 for the positioning part, 5 for the ventilator connector, 6 for the scale line, 7 for the arc-shaped recess, 8 for the lower cover, 10 for the pressure indicator, 11 for the housing, 12 for the one-way valve, 13 for the cuff, 14 for the indicator line, 15 for the air inlet, 16 for the air outlet, 20 for the cuff receiving cavity, 21 for the one-way valve receiving cavity, 22 for the first vent hole, 80 for the limiting groove, 81 for the limiting connecting plate, and 82 for the second vent hole, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An endotracheal tube with a pressure indicator, characterized in that: It includes a ventilation tube (1), one end of which is fixedly sleeved with a balloon (2), and an inflation tube (3) is installed on one side of the balloon (2); one end of the inflation tube (3) is connected to a pressure indicator (10), and the other end of the ventilation tube (1) is fixedly connected to a tracheal connector (5).

2. The endotracheal cannula with a pressure indicator according to claim 1, characterized in that: The pressure indicating device (10) includes a housing (11), a one-way valve (12), a bladder (13), and a lower cover (8); the housing (11) has a bladder receiving cavity (20), a one-way valve receiving cavity (21), and a first vent hole (22); the bladder receiving cavity (20) and the one-way valve receiving cavity (21) are connected through the first vent hole (22), the one-way valve (12) is installed in the one-way valve receiving cavity (21), the bladder (13) is movably disposed in the bladder receiving cavity (20) and abuts against the cavity wall of the bladder receiving cavity (20); the lower cover (8) is installed at the end of the housing (11) and is connected to the inflation tube (3).

3. The endotracheal tube with a pressure indicator according to claim 2, characterized in that: An air inlet (15) is formed at the end of the one-way valve (12); a syringe is connected to the air inlet (15) of the one-way valve (12); an air outlet (16) is formed at the end of the lower cover (8), and an air inlet (3) is inserted into the air outlet (16).

4. The endotracheal tube with a pressure indicator according to claim 2, characterized in that: The sheath (13) is a freely expandable corrugated structure. An indicator line (14) is mounted on the side of the sheath (13) near the one-way valve (12). The indicator line (14) is arranged in a ring on the sheath (13).

5. A endotracheal tube with a pressure indicator according to claim 2, characterized in that: The lower cover (8) includes a limiting groove (80) in the middle and a limiting connecting plate (81) at the end; wherein, the end of the sleeve (13) is fitted into the limiting groove (80), and the limiting connecting plate (81) abuts against the end of the shell (11); a plurality of second vent holes (82) are arranged on the side wall between the limiting groove (80) and the limiting connecting plate (81), and the plurality of second vent holes (82) are connected to the air outlet (16).

6. A endotracheal tube with a pressure indicator according to claim 4, characterized in that: The housing (11) is made of transparent material, and scale lines (6) are arranged around the housing (11); there is a gap between the scale lines (6) and the indicator lines (14).

7. The endotracheal tube with a pressure indicator according to claim 2, characterized in that: The housing (11) is equipped with a positioning part (4) for stabilizing the grip pressure indicator (10).

8. The endotracheal cannula with a pressure indicator according to claim 7, characterized in that: The positioning part (4) includes multiple arc-shaped recesses (7), which are arranged on the side near the air inlet (15) and are equidistantly arranged along the circumference of the housing (11).

9. A endotracheal tube with a pressure indicator according to claim 8, characterized in that: Multiple arc-shaped recesses (7) are arranged corresponding to the positions of the one-way valve receiving cavity (21) and the first vent (22).

10. A endotracheal tube with a pressure indicator according to claim 8, characterized in that: The connection between the multiple arc-shaped recesses (7) and the shell (11) has a rounded transition structure.

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