An adjustable dual-lumen bronchial tube

Abstract

The utility model provides a adjustable double -cavity bronchial cannula relates to medical instrument technical field, include: main tracheal pipe body: it is provided with the gas outlet hole with internal cavity communication on it, is used for main tracheal cuff inflation, bronchial pipe body: it is installed with bronchial cuff, guide rail: main tracheal pipe body and bronchial pipe body are through guide rail sliding fit, pipe cover: it is used for with main tracheal pipe body assembly, wherein is provided with the through -hole of can hold main tracheal pipe body and bronchial pipe body, can supply bronchial pipe body sliding through the air inlet hole that pipe cover is set up, main tracheal cuff: install in the pipe cover outside, main tracheal cuff internal space is connected through the air inlet hole with the gas outlet hole, the position of bronchial pipe body relative to main tracheal pipe body can adjust according to patient individual difference, make product use more close clinical demand, cooperate and set up the pipe cover, make bronchial pipe body sliding adjustment when main tracheal cuff is not interfered with influence.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an adjustable double-lumen endotracheal tube. Background Technology

[0002] Although the existing double-lumen endotracheal tubes on the market are relatively mature, due to issues such as mass production and mold costs, each model and specification of double-lumen endotracheal tube has fixed size parameters. These size data are derived from clinical data, which are representative but cannot cope with the influencing factors caused by individual differences. They cannot adjust the relative position of the bronchus and main trachea, which limits their clinical use and makes it impossible to achieve a more standardized tube placement state based on patient differences.

[0003] In summary, although existing double-lumen endotracheal tubes are relatively mature, incompatibility in size inevitably arises in clinical use. Therefore, there is a need for a double-lumen endotracheal tube that can adjust the relative position of the bronchial lumen and the main tracheal lumen to improve the flexibility of the product in clinical use. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable dual-lumen endotracheal cannula. The cannula has two tubes and a guide rail structure on the side of the tube body, which can be adjusted to adjust the relative positions according to actual needs, thereby achieving a suitable bronchial length.

[0005] To address the above problems, this utility model provides an adjustable dual-lumen endotracheal cannula, comprising:

[0006] Main trachea body: It is equipped with an air inlet and an air outlet that communicate with the internal inflation cavity for inflating the main trachea cuff.

[0007] The bronchial tube body is fitted with a bronchial cuff.

[0008] Guide rail: The main tracheal tube and the bronchial tube slide together through the guide rail, so that the relative position of the main tracheal tube and the bronchial tube can be adjusted to fit the patient's size.

[0009] Tube sleeve: Used for assembly with the main trachea body, which is provided with through holes that can accommodate the main trachea body and the bronchus body, allowing the bronchus body to slide through, and the tube sleeve is provided with an air inlet.

[0010] Main tracheal sleeve: Installed on the outside of the tube sleeve, the internal space of the main tracheal sleeve is connected to the air outlet of the main tracheal tube and the air inlet of the tube sleeve.

[0011] The main tracheal tube and the bronchial tube are combined to form a double-lumen endotracheal cannula.

[0012] The main tracheal tube and bronchial tube are slidably engaged by guide rails, allowing the relative positions of the main tracheal tube and bronchial tube in a double-lumen endotracheal tube to be adjusted, making the product more suitable for clinical needs.

[0013] The design of the sleeve ensures that the main tracheal cuff is not interfered with when the bronchial tube body slides and adjusts.

[0014] Optionally, the guide rail is disposed on the main trachea body and / or the bronchial body.

[0015] Preferably, the guide rail is provided on both the main trachea and the bronchus.

[0016] According to one embodiment of the present invention, the guide rail is not limited to a track-type guide rail, but can also be a guide rail formed by a groove structure (such as a dovetail groove).

[0017] Preferably, the guide rail is an L-shaped guide rail, with the L-shaped guide rails on the main trachea and bronchus having their openings facing inward and outward, respectively, to achieve the matching of the two guide rails.

[0018] According to one embodiment of the present invention, the guide rail is integrally formed or assembled on the main trachea body and the bronchus body.

[0019] According to one embodiment of the present invention, both the main trachea and the bronchus are provided with a flat portion. After the main trachea and the bronchus are combined, their flat portions come into contact, making the overall intubation structure more compact.

[0020] According to one embodiment of the present invention, the guide rail is disposed on the planar portion.

[0021] According to one embodiment of the present invention, the main trachea is provided with an inflation cavity, a visual cavity, and / or a flushing cavity.

[0022] When the main trachea is a multi-lumen tube, in addition to the air-filled cavity, it may also be equipped with a visual cavity and / or a flushing cavity.

[0023] According to one embodiment of the present invention, the sleeve and the main air pipe body are fixedly connected by adhesive.

[0024] According to one embodiment of the present invention, the tube sleeve and the main airway sleeve are fixedly connected by adhesive.

[0025] The beneficial effects of this utility model are that, by sliding the main tracheal tube and the bronchial tube together and adjusting them using the guide rail structure on the side of the tube, the position of the bronchial tube relative to the main tracheal tube can be adjusted according to individual patient differences, making the product more closely suited to clinical needs and more compatible with individual patient differences during clinical use; at the same time, the addition of a tube sleeve ensures that the main tracheal cuff is not interfered with during the sliding adjustment of the bronchial tube. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 A schematic diagram of the overall structure of an adjustable dual-lumen endotracheal cannula;

[0028] Figure 2 A schematic diagram of the main tracheal tube;

[0029] Figure 3 A schematic diagram of the bronchial tube structure;

[0030] Figure 4 A schematic diagram of the main tracheal cuff and endotracheal tube;

[0031] Figure 5 This is an enlarged schematic diagram of a section of the guide rail in Example 2;

[0032] Figure 6 This is an enlarged schematic diagram of the second guide rail in Example 2;

[0033] In the diagram: 1. Main trachea body, 2. Bronchial body, 1-1. Guide rail one, 1-2. Tube sleeve, 1-3. Main trachea cuff, 2-1. Guide rail two. Detailed Implementation

[0034] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0035] Example 1:

[0036] An adjustable double-lumen endotracheal tube, such as Figures 1-5 It includes the main tracheal tube body 1, the bronchial tube body 2, the tube sleeve 1-2, and the main tracheal cuff 1-3.

[0037] like Figure 2The main air tube body 1 can be a right-side main air tube or a left-side main air tube. The tube body is designed with an air inlet, an air outlet, and an inflation chamber. The other components are the same as those of similar products on the market.

[0038] The main trachea body 1 is preferably a multi-lumen tube body. In addition to the air-filling cavity, the internal lumens can also be equipped with a visual cavity and / or a flushing cavity. When the flushing cavity is equipped, a simultaneous flushing tube and a flushing connector are provided.

[0039] The main airway tube body 1 has a flat section on one side, and the flat section has a guide rail design.

[0040] like Figure 4 The sleeve 1-2 is used for assembly with the main tracheal cuff 1-3 and is simultaneously assembled onto the main tracheal tube body 1. The sleeve 1-2 is designed as a hollow cavity, forming a through hole that can accommodate the main tracheal tube body 1 and the bronchial tube body 2. After being assembled onto the main tracheal tube body 1, space is left for the bronchial tube body 2 to slide through, without affecting the inflation and deflation of the main tracheal cuff 1-3. The sleeve is designed with an air inlet, which connects with the air outlet of the main tracheal tube body 1.

[0041] The main tracheal sleeve 1-3 is installed on the outside of the sleeve 1-2. The internal space of the main tracheal sleeve 1-3 is connected to the air outlet on the main tracheal tube body 1 through the air inlet on the sleeve. The main tracheal sleeve 1-3 is inflated through the inflation channel.

[0042] 2 bronchial tubes Figure 1 , Figure 3 It can be a right-side or left-side bronchial tube body, with an air inlet, an air outlet, and an inflation chamber designed on the tube body. The other components are the same as those of similar products on the market. A bronchial cuff is installed on it. The side of the bronchial tube body 2 has a flat part, and the flat part has a structure that cooperates with the guide rail on the main bronchial tube body 1. In this embodiment, the guide rail is preferred.

[0043] Both the main tracheal tube body 1 and the bronchial tube body 2 are provided with flat parts. After the main tracheal tube body 1 and the bronchial tube body 2 are combined, their flat parts come into contact with each other, forming an overall elliptical or oval-shaped intubation structure, which is more compact and facilitates intubation.

[0044] The bronchial tube body 2 is preferably a multi-lumen tube body.

[0045] The guide rails of the main tracheal tube 1 and the bronchial tube 2 cooperate to form a sliding device, which allows the relative position of the main tracheal tube 1 and the bronchial tube 2 to be adjusted to fit the patient's size and make the product more in line with clinical needs.

[0046] The design of the sleeve 1-2 ensures that the main tracheal cuff 1-3 is not affected by interference when the bronchial tube 2 is slidably adjusted.

[0047] In this embodiment, the guide rail includes a track-type guide rail, or a guide rail formed by a groove-type structure (such as a dovetail groove).

[0048] The main endotracheal cuff 1-3 is assembled onto the sleeve 1-2 and can be fixed with adhesive. The air inlet on the sleeve aligns with the air outlet of the main endotracheal tube body 1. The sleeve 1-2 and the main endotracheal tube body 1 can be fixed with adhesive. The bronchial tube body 2 is assembled with the main endotracheal tube body 1 via a guide rail, and the two can slide against each other. The other components of the dual-lumen endotracheal cannula, such as the inflation tube, indicator cuff, and one-way valve, are the same as those in similar products on the market.

[0049] In use, just like with conventional products, the doctor inserts the adjustable double-lumen endotracheal tube into the human airway. When the separation point of the two lumens of the double-lumen endotracheal tube is located at the carina of the human trachea, the position of the bronchial tube body 2 is adjusted according to the clinical situation. By sliding the bronchial tube body 2 along the guide rail, the initial position of the bronchial tube body 2 is changed, allowing it to be inserted into or withdrawn from the left (right) main bronchus. The position of the bronchial tube body 2 can be maintained by the friction between the guide rail and / or the tube sleeve, preventing easy displacement.

[0050] Example 2:

[0051] Based on Example 1, in this example, as Figure 5 , Figure 6 The guide rail adopts an L-shaped guide rail. The L-shaped guide rails on the main trachea body 1 and the bronchus body 2 are respectively the inward-facing guide rail 1-1 and the outward-facing guide rail 2-1, so as to realize the cooperation between the two guide rails.

[0052] The guide rail structure can be either integrally formed or assembled and connected to the main airway body 1 / bronchus body 2.

[0053] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. An adjustable double-lumen endotracheal cannula, characterized in that: include: Main trachea body (1): It is provided with an air outlet that communicates with the internal lumen; The bronchial tube body (2) is fitted with a bronchial cuff; Guide rail: The main tracheal tube (1) and the bronchial tube (2) are slidably fitted by the guide rail, so that the relative position of the main tracheal tube (1) and the bronchial tube (2) can be adjusted; Tube sleeve (1-2): used for assembly with the main trachea body (1), wherein a through hole is provided to accommodate the main trachea body (1) and the bronchus body (2), and an air inlet is provided on the tube sleeve (1-2); Main tracheal sleeve (1-3): Installed on the outside of the sleeve (1-2), the internal space of the main tracheal sleeve (1-3) is connected to the air outlet through the air inlet.

2. The adjustable dual-lumen endotracheal cannula according to claim 1, characterized in that: The guide rail is set on the main trachea body (1) and / or the bronchus body (2).

3. The adjustable dual-lumen endotracheal cannula according to claim 1, characterized in that: The guide rails are provided on both the main trachea body (1) and the bronchus body (2), and the guide rails are L-shaped guide rails.

4. The adjustable dual-lumen endotracheal cannula according to claim 3, characterized in that: The guide rail is integrally formed or assembled on the main trachea body (1) and the bronchus body (2).

5. The adjustable dual-lumen endotracheal cannula according to claim 3 or 4, characterized in that: Both the main trachea body (1) and the bronchus body (2) are provided with flat parts. After the main trachea body (1) and the bronchus body (2) are combined, their flat parts come into contact.

6. The adjustable dual-lumen endotracheal cannula according to claim 5, characterized in that: The guide rail is located on the flat part.

7. The adjustable dual-lumen endotracheal cannula according to claim 1, characterized in that: The main tracheal tube (1) is provided with an inflation cavity, as well as a visual cavity and / or a flushing cavity.

8. The adjustable dual-lumen endotracheal cannula according to claim 1, characterized in that: The sleeve (1-2) and the main air pipe body (1) are fixedly connected by adhesive.

9. The adjustable dual-lumen endotracheal cannula according to claim 1, characterized in that: The tube sleeve (1-2) and the main tracheal tube sleeve (1-3) are fixedly connected by adhesive.

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