Tracheal tube facilitating inflation and deflation

Abstract

The application relates to a tracheal catheter facilitating inflation and deflation, which comprises a catheter body, one end of the catheter body being connected with a telescopic umbrella structure, the telescopic umbrella structure being arranged around the circumferential side of the catheter body, a plurality of communication holes being arranged on the circumferential side of the catheter body, and the plurality of communication holes being arranged at intervals along the circumference of the catheter body; the telescopic umbrella structure comprises a plurality of first bridge pipes and a first flexible support connected with the plurality of first bridge pipes, one end of each of the first bridge pipes away from the first flexible support being connected with the catheter body, and each of the first bridge pipes being communicated with the catheter body through the communication hole, and one end of the first bridge pipe away from the catheter body being configured to move towards the direction close to or away from the axis of the catheter body; the telescopic umbrella structure further comprises a first elastic umbrella surface, one side of the first elastic umbrella surface being connected with the catheter body, the other side being connected with the first flexible support, and the first bridge pipe being supported on one side surface of the first elastic umbrella surface.

Description

Technical Field

[0001] This application relates to the field of medical devices, specifically to an endotracheal tube that is easy to inflate and deflate. Background Technology

[0002] Endotracheal intubation is a common clinical diagnostic and treatment technique. To avoid airway mucosal damage, the diameter of the endotracheal tube is usually smaller than that of the trachea. To ensure the proper use of the endotracheal tube, a cuff is usually installed at the end of the tube inserted into the patient's body to completely close the airway. However, prolonged use of the cuff can easily cause tracheal mucosal damage due to its long-term compression, potentially leading to local ischemia, necrosis, or granuloma formation, causing harm to the patient. Related techniques typically involve intermittently deflating the cuff to alleviate local blood circulation; however, this deflation process requires interrupting the patient's mechanical ventilation, which carries certain risks. Summary of the Invention

[0003] This application provides an endotracheal tube that is easy to inflate and deflate, which can solve the technical problem in related technologies that usually use manual intermittent deflation of the cuff for a period of time to relieve local blood circulation, but the mechanical ventilation of the patient needs to be interrupted during the deflation process, which poses certain risks.

[0004] In a first aspect, embodiments of this application provide a tracheal tube that facilitates inflation and deflation, comprising: a tube body, one end of which is connected to a telescopic umbrella structure, the telescopic umbrella structure surrounding the periphery of the tube body, and a plurality of communicating holes being provided on the periphery of the tube body, the plurality of communicating holes being spaced apart along the circumference of the tube body; the telescopic umbrella structure comprising a plurality of first bridge tubes and a first flexible support member connected to the plurality of first bridge tubes, the end of each first bridge tube away from the first flexible support member being connected to the tube body, and each first bridge tube communicating with the tube body through the communicating holes, the end of each first bridge tube away from the tube body being configured to move toward or away from the axis of the tube body; the telescopic umbrella structure further comprising a first elastic umbrella surface, one side of the first elastic umbrella surface being connected to the tube body, the other side being connected to the first flexible support member, and the first bridge tubes being supported on one side of the first elastic umbrella surface.

[0005] In conjunction with the first aspect, in one embodiment, the telescopic umbrella structure further includes a second flexible support member, which is coaxially arranged with the first flexible support member; a plurality of second bridge pipes are connected to the periphery of the first flexible support member, the plurality of second bridge pipes are spaced apart along the periphery of the first flexible support member, and the second bridge pipes communicate with the first bridge pipes, with the ends of the second bridge pipes away from the first flexible support member all connected to the second flexible support member; a second elastic umbrella surface is provided between the first flexible support member and the second flexible support member, and the second bridge pipes are all supported on one side of the second elastic umbrella surface.

[0006] In conjunction with the first aspect, in one embodiment, the first flexible support member includes multiple support segments, which are spaced apart, and a tubular segment is sandwiched between adjacent support segments, forming a ring; the tubular segment is connected to the first bridge pipe, and the second bridge pipe is connected to the tubular segment.

[0007] In conjunction with the first aspect, in one embodiment, the support segment is made of soft silicone.

[0008] In conjunction with the first aspect, in one embodiment, the endotracheal tube that facilitates inflation and deflation further includes an annular bridge connector, the annular bridge connector being disposed around the periphery of the tube body and the tube body communicating with the annular bridge connector; a first bridge connector being connected to the annular bridge connector and communicating with the annular bridge connector.

[0009] In conjunction with the first aspect, in one embodiment, the first elastic umbrella surface is made of silicone material.

[0010] In conjunction with the first aspect, in one embodiment, a connecting tube is installed at the end of the catheter body away from the telescopic umbrella structure.

[0011] In conjunction with the first aspect, in one embodiment, the catheter body is provided with scale lines that extend along the axis of the catheter body.

[0012] In conjunction with the first aspect, in one embodiment, the catheter body has an inlet ramp at one end near the telescopic umbrella-shaped structure.

[0013] The beneficial effects of the technical solutions provided in this application include:

[0014] By providing multiple connecting holes around the periphery of the catheter body, multiple first bridge tubes can be connected to the catheter body through these holes. During the inspiratory phase of the respiratory cycle, the pressure provided by the ventilator can enter the first bridge tubes through the cavity of the catheter body, causing multiple first bridge tubes to inflate and form an umbrella-like structure. At this time, the first flexible support can be supported on the inner wall of the airway, and the first elastic umbrella surface is also inflated, sealing the airway between the first flexible support and the catheter body. During the expiratory phase of the respiratory cycle, the ventilator stops working, the first bridge tubes lose the gas tension from the ventilator, and retract towards the axis of the catheter body, thereby moving the first flexible support away from the inner wall of the airway. This solves the technical problem in related technologies where manual intermittent deflation of the cuff is usually used to relieve local blood circulation, but this requires interrupting the patient's mechanical ventilation, which poses certain risks. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A side view of the endotracheal tube for easy inflation and deflation provided in an embodiment of this application;

[0017] Figure 2 This is a side view of the catheter body provided in an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the telescopic umbrella structure connected to the annular bridge nozzle provided in the embodiments of this application.

[0019] In the picture:

[0020] 1. Conduit body; 11. Connecting hole; 12. Connecting tube; 13. Inlet bevel;

[0021] 2. Telescopic umbrella structure; 21. First bridge pipe; 22. First flexible support; 23. Second flexible support; 24. Second bridge pipe; 25. Support section; 26. Tubular section;

[0022] 3. Ring bridge connector. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0024] This application provides an endotracheal tube that is easy to inflate and deflate, which can solve the technical problem in related technologies where local blood circulation is usually relieved by manually deflating the cuff for a period of time, but the mechanical ventilation of the patient needs to be interrupted during the cuff deflation process, which poses certain risks.

[0025] See Figure 1 and Figure 2 The image shows an embodiment of a tracheal tube that facilitates inflation and deflation, characterized by comprising: a tube body 1, one end of which is connected to a telescopic umbrella structure 2, the telescopic umbrella structure 2 surrounding the periphery of the tube body 1, and a plurality of communicating holes 11 provided on the periphery of the tube body 1, the plurality of communicating holes 11 being spaced apart along the circumference of the tube body 1; the telescopic umbrella structure 2 including a plurality of first bridge tubes 21 and a first flexible support member 22 connected to the plurality of first bridge tubes 21, each first bridge tube 21 being located away from... One end of each of the first flexible support members 22 is connected to the catheter body 1, and each of the first bridging pipes 21 is connected to the catheter body 1 through the connecting hole 11. The end of each of the first bridging pipes 21 away from the catheter body 1 is configured to move toward or away from the axis of the catheter body 1. The telescopic umbrella structure 2 also includes a first elastic umbrella surface, one side of which is connected to the catheter body 1, and the other side is connected to the first flexible support member 22. Each of the first bridging pipes 21 is supported on one side of the first elastic umbrella surface. It should be understood that the catheter body 1 may have an insertion end that extends into the airway and a connection end that connects to the ventilator. The telescopic umbrella structure 2 is installed on the side of the catheter body 1 near the insertion end.

[0026] In this embodiment, multiple connecting holes 11 are provided around the periphery of the catheter body 1, allowing multiple first bridge tubes 21 to communicate with the catheter body 1 through the connecting holes 11. It should be understood that the respiratory cycle typically includes an inspiratory phase and an expiratory phase. During endotracheal intubation, the airway only needs to be completely closed during the inspiratory phase. In this embodiment, when the respiratory cycle is in the inspiratory phase, the pressure provided by the ventilator can enter the first bridge tubes 21 through the cavity of the catheter body 1, thereby inflating multiple first bridge tubes 21 to form an umbrella-like structure. At this time, the first flexible support 22 can be supported on the inner wall of the airway, and the first elastic umbrella surface is also supported, sealing the airway between the first flexible support 22 and the catheter body 1. Preferably, the first flexible support 22 can be made of silicone. When there is no work done during the inspiratory phase, the first flexible support 22 can be in a contracted state. When the respiratory cycle is in the expiratory phase, the ventilator stops working, the first bridge tubes 21 lose the gas tension from the ventilator, and retract towards the axis of the catheter body 1, thereby moving the first flexible support 22 away from the inner wall of the airway. Therefore, the endotracheal tube, which is easy to inflate and deflate, can move mechanically with the ventilator. It can be inflated only during the patient's inspiration to close the airway and allow the intubation treatment to proceed normally. During the expiration phase, it can be deflated to relieve the pressure on the local tracheal mucosa. At this time, the first flexible support 22 can be moved away from the inner wall of the airway, reducing the pressure on the inner wall of the airway and effectively reducing the possibility of damage to the inner wall of the airway. This solves the technical problem in related technologies where intermittent deflation of the cuff can easily cause mechanical ventilation to be interrupted during the patient's inspiration due to the airway not being completely sealed, thus affecting the treatment effect.

[0027] See Figure 3As shown, in some optional embodiments, the telescopic umbrella structure 2 may further include a second flexible support member 23, which is coaxially arranged with the first flexible support member 22; a plurality of second bridge pipes 24 are connected to the periphery of the first flexible support member 22, the plurality of second bridge pipes 24 are spaced apart along the periphery of the first flexible support member 22, and the second bridge pipes 24 communicate with the first bridge pipes 21, and the ends of the second bridge pipes 24 away from the first flexible support member 22 are all connected to the second flexible support member 23; a second elastic umbrella surface is provided between the first flexible support member 22 and the second flexible support member 23, and the second bridge pipes 24 are all supported on one side of the second elastic umbrella surface. In the embodiments of this application, it can be understood that the telescopic umbrella has multiple layers of different umbrella surface structures. The first flexible support member 22, the first bridge pipe 21 and the air tube body can form a first layer of umbrella surface structure, and the second flexible support member 23, the second bridge pipe 24 and the first flexible support member 22 form a second layer of umbrella surface structure. Preferably, it may also have a third layer or more of umbrella surface structures, the structure of which may be the same as the second layer of umbrella surface structure. Since the second bridge connector 24 is connected to the first bridge connector 21, the pressure provided by the ventilator bellows during the inspiratory phase can also inflate the second bridge connector 24. By setting a second or even more layers of canopy structure, the telescopic pouch structure 2 can adapt to various airways with different inner diameters, ensuring complete airway closure for patients with different inner diameters during the inspiratory phase. It should be understood that the inner wall of the airway itself has a certain pressure. When at least part of the flexible support in the telescopic pouch structure 2 supports the inner wall of the patient's airway, the remaining bridge connectors can stop inflating and expanding under the pressure of the inner wall of the airway. Furthermore, the second flexible support 23 and the first flexible support 22 can be set as concentric circles. When they are coaxially arranged, whether the first flexible support 22 or the second flexible support 23 supports the inner wall of the airway, the pressure on the inner wall of the airway in all directions is relatively uniform, enhancing the safety of use. It should be understood that the first flexible support 22 and the second flexible support 23 have different outer diameters when supported, and the outer diameter of the second flexible support 23 is larger than the outer diameter of the first flexible support 22.

[0028] In some optional embodiments, the first flexible support 22 includes multiple support segments 25, which are spaced apart, and a tubular segment 26 is sandwiched between adjacent support segments 25. The multiple support segments 25 and the multiple tubular segments 26 form a ring. The tubular segments 26 are connected to the first bridging pipe 21, and the second bridging pipe 24 is connected to the tubular segments 26. That is, the first flexible support 22 includes multiple support segments 25 and multiple tubular segments 26. During the intake phase, the blown gas can also enter the tubular segments 26 through the first bridging pipe 21, and then enter the second bridging pipe 24. When there is no intake phase, the multiple tubular segments 26 can be in a relatively soft and pliable state, reducing the diameter of the first flexible support 22 and reducing the tension generated by the concentric circles being filled with gas. The second flexible support 23 can also be configured with the same structure as the first flexible support 22.

[0029] Preferably, the support segment 25 is made of soft silicone. Soft silicone is relatively soft and can make relatively gentle contact with the inner wall of the patient's airway during use, effectively avoiding damage to the inner wall when the first flexible support 22 or the second flexible support 23 contacts the inner wall of the patient's airway.

[0030] In some optional embodiments, the endotracheal tube that facilitates inflation and deflation may further include an annular bridge connector 3, which surrounds the periphery of the tube body 1 and is in communication with the annular bridge connector 3; the first bridge connector 21 is connected to the annular bridge connector 3 and is in communication with the annular bridge connector 3. In this embodiment, by providing the annular bridge connector 3, during the inspiratory phase, the gas blown out of the ventilator enters the tube body 1 and then enters the annular bridge connector 3 before entering the first bridge connector 21. This arrangement allows the first bridge connector 21 a certain buffer time when it is supported by gas, preventing the first layer of the canopy structure from being suddenly supported too rapidly, and reducing the problem of local stress concentration.

[0031] In some optional embodiments, the first elastic umbrella surface is made of silicone. Preferably, the second elastic umbrella surface is also made of the same material as the first elastic umbrella surface to reduce manufacturing costs and enhance manufacturing simplicity. Silicone has good airtightness; using silicone for both the first and second elastic umbrella surfaces allows the elastic umbrella surface to have good expansion and contraction effects while effectively ensuring a seal on the airway during the inhalation phase.

[0032] In some optional embodiments, a connecting tube 12 is installed at the end of the catheter body 1 away from the telescopic pouch structure 2. The connecting tube 12 facilitates the installation of the catheter body 1 into devices such as ventilators, enhancing ease of use.

[0033] Furthermore, the catheter body 1 is provided with graduation lines that extend along the axis of the catheter body 1. The graduation lines help the surgeon determine the depth of catheter insertion into the trachea in real time, enhancing surgical precision.

[0034] Furthermore, the catheter body 1 is provided with an inlet ramp 13 at one end near the telescopic pouch structure 2. By providing the inlet ramp 13, the smoothness of the insertion of the catheter body 1 into the trachea can be facilitated, and the inlet ramp 13 can play a certain guiding role at this time.

[0035] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0036] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. 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 this application. Therefore, this application 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 claimed herein.

Claims

1. A tracheal tube that is easy to inflate and deflate, characterized in that, It includes: The catheter body (1) has a telescopic umbrella structure (2) connected to one end of the catheter body (1). The telescopic umbrella structure (2) surrounds the periphery of the catheter body (1). The periphery of the catheter body (1) has multiple connecting holes (11) and the multiple connecting holes (11) are arranged at intervals along the periphery of the catheter body (1). The telescopic umbrella structure (2) includes multiple first bridge tubes (21) and a first flexible support member (22) connected to the multiple first bridge tubes (21). The end of each first bridge tube (21) away from the first flexible support member (22) is connected to the conduit body (1), and each first bridge tube (21) is connected to the conduit body (1) through the connecting hole (11). The end of the first bridge tube (21) away from the conduit body (1) is configured to move toward or away from the axis of the conduit body (1). The telescopic umbrella structure (2) further includes a first elastic umbrella surface, one side of which is connected to the duct body (1) and the other side is connected to the first flexible support (22), and the first bridge pipe (21) is supported on one side of the first elastic umbrella surface.

2. The endotracheal tube for easy inflation and deflation as described in claim 1, characterized in that: The telescopic umbrella structure (2) further includes a second flexible support member (23), which is coaxially arranged with the first flexible support member (22); The first flexible support member (22) is connected to a plurality of second bridge pipes (24) on its periphery. The plurality of second bridge pipes (24) are arranged at intervals along the periphery of the first flexible support member (22), and the second bridge pipes (24) are connected to the first bridge pipes (21). The end of the second bridge pipes (24) away from the first flexible support member (22) is connected to the second flexible support member (23). A second elastic umbrella surface is provided between the first flexible support member (22) and the second flexible support member (23), and the second bridge pipe (24) is supported on one side of the second elastic umbrella surface.

3. The endotracheal tube for easy inflation and deflation as described in claim 2, characterized in that: The first flexible support member (22) includes multiple support segments (25), which are spaced apart, and a tubular segment (26) is sandwiched between adjacent support segments (25). The multiple support segments (25) and the multiple tubular segments (26) form a ring. The tubular segment (26) is connected to the first bridge connector (21), and the second bridge connector (24) is connected to the tubular segment (26).

4. The endotracheal tube for easy inflation and deflation as described in claim 3, characterized in that: The support section (25) is made of soft silicone.

5. The endotracheal tube for easy inflation and deflation as described in claim 1, characterized in that: The endotracheal tube that facilitates inflation and deflation also includes an annular bridge connector (3), which surrounds the periphery of the tube body (1) and is connected to the annular bridge connector (3). The first bridge connector (21) is connected to the annular bridge connector (3), and the first bridge connector (21) is in communication with the annular bridge connector (3).

6. The endotracheal tube for easy inflation and deflation as described in claim 1, characterized in that: The first elastic umbrella surface is made of silicone.

7. The endotracheal tube for easy inflation and deflation as described in claim 1, characterized in that: A connecting tube (12) is installed at the end of the catheter body (1) away from the telescopic umbrella structure (2).

8. The endotracheal tube for easy inflation and deflation as described in claim 1, characterized in that: The catheter body (1) is provided with scale lines that extend along the axis of the catheter body (1).

9. The endotracheal tube for easy inflation and deflation as described in claim 1, characterized in that: The catheter body (1) has an inlet bevel (13) at one end near the telescopic umbrella structure (2).

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