Airway cannula with instrument channel

Abstract

The invention discloses an airway cannula with an instrument channel, which comprises a connecting cannula, a guide channel for an air catheter to pass through is formed in the connecting cannula, a balloon component is arranged at the imbedding end of the connecting cannula, and an inflation channel for inflating the balloon component is formed in the wall of the connecting cannula. The top of the connecting cannula is provided with a fixing assembly used for clamping a tracheal catheter, the fixing assembly comprises a fixing support arranged on the connecting cannula and a plurality of fixing tube clamps arranged on the fixing support, and a fixing groove used for clamping the tracheal catheter is formed in each fixing tube clamp; the fixing pipe clamp comprises a clamping body arranged on the fixing support, a first clamping piece rotationally arranged on the clamping body and a second clamping piece hinged to the clamping body.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an airway cannula with an instrument channel. Background Art

[0002] Endotracheal intubation is an important medical operation technology, which involves inserting a special endotracheal tube into the patient's trachea through the mouth or nose to establish an artificial airway to ensure the patient's breathing and life safety.

[0003] The purpose of endotracheal intubation is to maintain airway patency, provide respiratory support, protect the airway, facilitate airway management, and buy time for further treatment, as follows: 1. Maintain airway patency: In many cases, such as foreign bodies blocking the airway, laryngeal edema, severe asthma attacks, etc., the patient's natural airway may be obstructed, leading to breathing difficulties or even respiratory arrest. Endotracheal intubation can quickly remove foreign bodies or secretions in the airway, restore airway patency, and ensure that oxygen can enter the lungs smoothly. For example, in patients with acute laryngitis, laryngeal swelling may seriously affect breathing. At this time, endotracheal intubation can provide life-saving airway support for patients; 2. Provide respiratory support: For patients with respiratory failure, whether caused by lung disease, neurological disease or other reasons, endotracheal intubation can be connected to respiratory assistance equipment such as ventilators to provide mechanical ventilation for patients and help them breathe. For example, patients with severe pneumonia may experience severe hypoxemia and hypercapnia. Endotracheal intubation and ventilator treatment can improve the patient's respiratory function and maintain vital signs. 3. Protect the airway: Comatose patients or patients with weakened swallowing reflexes are prone to aspiration, that is, gastric contents or other foreign objects are inhaled into the airway, leading to lung infection or even suffocation. Endotracheal intubation can effectively protect the airway and prevent aspiration. For example, patients in a coma due to cerebral hemorrhage often need to be intubated during emergency treatment to avoid the serious consequences of aspiration. After the airway tube is inserted and an artificial airway is established, a tracheal tube or a visual device needs to be inserted into the artificial airway. Conventional airway tubes can generally only fix tracheal tubes or visual devices of a single caliber, and are therefore not compatible with tracheal tubes and visual devices of different sizes, causing inconvenience to medical staff. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes an airway cannula with an instrument channel.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: An airway intubation with an instrument channel includes a connecting intubation. A guiding channel for a tracheal catheter to pass through is formed inside the connecting intubation. A balloon assembly is arranged at the insertion end of the connecting intubation, and an inflation channel for inflating the balloon assembly is formed inside the tube wall of the connecting intubation. A fixing assembly for clamping the tracheal catheter is arranged at the top of the connecting intubation. The fixing assembly includes a fixing bracket arranged on the connecting intubation and a plurality of fixing pipe clamps arranged on the fixing bracket. A fixing groove for clamping the tracheal catheter is formed on the fixing pipe clamp. The fixing pipe clamp includes a clamping main body arranged on the fixing bracket, a first clamping piece rotatably arranged on the clamping main body, and a second clamping piece hinged on the clamping main body. First clamping teeth are formed on the first clamping piece, and second clamping teeth engaged with the first clamping teeth are formed on the second clamping piece. The fixing groove is formed between the second clamping piece and the clamping main body. The second clamping piece rotates along the clamping main body to adjust the diameter of the fixing groove.

[0006] Preferably, the first clamping teeth and the second clamping teeth are arranged in a staggered manner, and an elastic element is arranged on the clamping main body. One end of the elastic element abuts against the clamping main body, and the other end abuts against the second clamping piece, so that the second clamping teeth always have a tendency to move in the direction of abutting against the first clamping teeth. Through the above improvement, since the first clamping teeth and the second clamping teeth are arranged in a staggered manner, when the elastic element acts on the second clamping piece, the first clamping teeth and the second clamping teeth are abutted to clamp and fix the tracheal catheter, ensuring the reliability of fixing the tracheal catheter.

[0007] Preferably, an elastic block is arranged on the clamping main body. The elastic block abuts against the first clamping piece, so that the first clamping piece always has a tendency to rotate towards the second clamping piece. Through the above improvement, by using the elastic block to act on the first clamping block, the first clamping piece approaches the second clamping piece, so that the first clamping teeth and the second clamping teeth are abutted to clamp and fix the tracheal catheter, ensuring the reliability of fixing the tracheal catheter.

[0008] Preferably, the fixing bracket includes a fixing sleeve sleeved on the top of the connecting intubation and a support column inserted on the fixing sleeve. The fixing pipe clamp is arranged on the support column. Through the above improvement, the whole fixing pipe clamp can slide up and down along the support column, so that multiple points of the tracheal catheter can be clamped and fixed by multiple fixing pipe clamps to ensure the reliability of fixing the tracheal catheter.

[0009] Preferably, a limiting post is inserted on the clamping main body, and the first clamping piece rotates along the limiting post and compresses the elastic block, so that the first clamping teeth are away from the second clamping teeth. Through the above improvement, the first clamping piece rotates along the limiting post, the first clamping piece rotates away from the second clamping piece, and squeezes the elastic block. As a result, the second clamping piece is not restricted by the first clamping teeth and can rotate counterclockwise to expand the diameter of the entire fixing groove to match tracheal catheters of different diameters.

[0010] Preferably, a limiting convex part is formed on the clamping main body, and the limiting convex part abuts against the first clamping piece to limit the movement of the first clamping piece towards the second clamping piece. Through the above improvement, after the first clamping piece rotates a certain stroke under the action of the elastic block, the first clamping piece will abut against the limiting convex part to limit the first clamping piece from continuing to move towards the second clamping piece.

[0011] Preferably, a rotating groove is formed on the clamping main body, and the second clamping piece is rotatably arranged in the rotating groove. Through the above improvement, the stability of the second clamping piece during rotation is improved.

[0012] Preferably, a first inflatable pipeline and a second inflatable pipeline are formed inside the tube wall of the connecting intubation tube. The balloon assembly includes a first balloon arranged around the insertion end of the connecting intubation tube and a second balloon extending out of the insertion end of the connecting intubation tube. A first inflatable tube connecting the first balloon is arranged in the first inflatable pipeline, and a second inflatable tube connecting the second balloon is arranged in the second inflatable pipeline. Through the above improvement, the first balloon and the second balloon can be inflated by the first inflatable tube and the second inflatable tube, so as to expand the airway and support the throat, improving the smoothness during the catheter insertion process.

[0013] Preferably, an inspection channel for inserting other inspection catheters is also formed inside the tube wall of the connecting intubation tube. Through the above improvement, other inspection catheters can enter through the inspection channel for inspection or sampling.

[0014] Preferably, the connecting intubation tube is bent, and the bending angle is 125°. Through the above improvement, the catheter can enter the throat more smoothly and is more in line with ergonomics.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: By setting a fixing component at the top of the connecting cannula and fixing the tracheal catheter through the fixing component to ensure the stability of the tracheal catheter, the fixing component includes a fixing bracket and a plurality of fixing pipe clamps arranged on the fixing bracket. A fixing groove for clamping the tracheal catheter is formed on the fixing pipe clamp. The fixing pipe clamp includes a clamping main body arranged on the fixing bracket, a first clamping piece rotatably arranged on the clamping main body, and a second clamping piece hinged on the clamping main body. First clamping teeth are formed on the first clamping piece, second clamping teeth engaged with the first clamping teeth are formed on the second clamping piece, and the fixing groove is formed between the second clamping piece and the clamping main body. The second clamping piece rotates along the clamping main body to adjust the caliber of the fixing groove, so as to cooperate with tracheal catheters or visual devices of different sizes and ensure the stability of the tracheal catheter, avoiding damage to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a sectional view of the whole structure of the present invention; Figure 3 is a schematic structural diagram of the fixing component of the present invention; Figure 4 is a schematic structural diagram of the fixing pipe clamp of the present invention; Figure 5 is a sectional view of the fixing pipe clamp of the present invention; Figure 6 is a schematic structural diagram of the inside of the connecting cannula of the present invention; Figure 7 of the present invention Figure 6 is a partially enlarged view of part A in; Figure 8 is a schematic structural diagram of the top of the connecting cannula of the present invention; Figure 9 of the present invention Figure 8 is a partially enlarged view of part B in; In the figure: 1. Connecting cannula; 2. Guide channel; 3. Balloon assembly; 4. Inflation channel; 5. Fixing component; 1.1. Fixing bracket; 1.2. Fixing pipe clamp; 1.3. Fixing groove; 2.1. Clamping main body; 2.2. First clamping piece; 2.3. Second clamping piece; 2.4. First clamping teeth; 2.5. Second clamping teeth; 3.1. Elastic element; 3.2. Elastic block; 3.3. Fixing sleeve; 3.4. Support column; 4.1. Limit post; 4.2. Limit convex part; 4.3. Rotation groove; 4.4. Inspection channel; 5.1. First inflatable pipeline; 5.2. Second inflatable pipeline; 5.3. First balloon; 5.4. Second balloon; 5.5. First inflatable tube; 5.6. Second inflatable tube; 6.1. Guide convex part; 6.2. Clamping piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] It should be understood that although terms such as upper, middle, lower, top, one end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for easy understanding, rather than for defining any directional or sequential limitations.

[0019] As Figures 1-9 shown, an airway intubation tube with an instrument channel includes a connecting intubation tube 1. A guiding channel 2 for the tracheal catheter to pass through is formed inside the connecting intubation tube 1. A balloon assembly 3 is arranged at the insertion end of the connecting intubation tube 1, and an inflation channel 4 for inflating the balloon assembly 3 is formed inside the tube wall of the connecting intubation tube 1.

[0020] Specifically, a fixing assembly 5 for clamping the tracheal catheter is arranged at the top of the connecting intubation tube 1. The fixing assembly 5 includes a fixing bracket 1.1 arranged on the connecting intubation tube 1 and a plurality of fixing pipe clamps 1.2 arranged on the fixing bracket 1.1, and a fixing groove 1.3 for clamping the tracheal catheter is formed on the fixing pipe clamp 1.2.

[0021] Furthermore, the fixing pipe clamp 1.2 includes a clamping main body 2.1 arranged on the fixing bracket 1.1, a first clamping piece 2.2 rotatably arranged on the clamping main body 2.1, and a second clamping piece 2.3 hinged on the clamping main body 2.1. First clamping teeth 2.4 are formed on the first clamping piece 2.2, and second clamping teeth 2.5 for engaging with the first clamping teeth 2.4 are formed on the second clamping piece 2.3. The fixing groove 1.3 is formed between the second clamping piece 2.3 and the clamping main body 2.1, and the first clamping piece 2.2 and the second clamping piece 2.3 are engaged to keep the fixing groove 1.3 at the current diameter.

[0022] During use, the second clamping piece 2.3 can be driven to rotate along the clamping main body 2.1 to adjust the diameter of the fixing groove 1.3, so as to cooperate with tracheal catheters or visual devices of different sizes and ensure the stability of the catheter, avoiding damage to the patient.

[0023] As Figures 3 to 5As shown in the figure, as a further explanation of the embodiments of the first clamping piece 2.2 and the second clamping piece 2.3, the first engaging teeth 2.4 and the second engaging teeth 2.5 are arranged in an interleaved manner, and an elastic element 3.1 is arranged on the clamping body 2.1. One end of the elastic element 3.1 abuts against the clamping body 2.1, and the other end abuts against the second clamping piece 2.3, so that the second engaging teeth 2.5 always have a tendency to move in the direction of abutting against the first engaging teeth 2.4.

[0024] Since the first engaging teeth 2.4 and the second engaging teeth 2.5 are arranged in an interleaved manner, as the elastic element 3.1 acts on the second clamping piece 2.3, the second engaging teeth 2.5 are brought into contact with the second engaging teeth 2.5 to clamp and fix the tracheal catheter, ensuring the reliability of fixing the tracheal catheter.

[0025] Furthermore, an elastic block 3.2 is arranged on the clamping body 2.1. The elastic block 3.2 abuts against the first clamping piece 2.2, so that the first clamping piece 2.2 always has a tendency to rotate towards the second clamping piece 2.3. By using the elastic block 3.2 to act on the first clamping block, the first clamping piece 2.2 is brought closer to the second clamping piece 2.3, so that the first engaging teeth 2.4 and the second engaging teeth 2.5 are abutted against each other to clamp and fix the tracheal catheter, ensuring the reliability of fixing the tracheal catheter.

[0026] At the same time, a limiting post 4.1 is inserted on the clamping body 2.1. When it is necessary to enlarge the fixing groove 1.3, the first clamping piece 2.2 can be driven to rotate along the limiting post 4.1, so that the first clamping block presses the elastic block 3.2, thereby making the first engaging teeth 2.4 away from the second engaging teeth 2.5. When the second clamping piece 2.3 is not restricted by the first engaging teeth 2.4, it can rotate counterclockwise to enlarge the diameter of the entire fixing groove 1.3 to match tracheal catheters of different diameters.

[0027] In addition, a limiting convex portion 4.2 is formed on the clamping body 2.1. When the first clamping piece 2.2 rotates a certain stroke under the action of the elastic block 3.2, the first clamping piece 2.2 will abut against the limiting convex portion 4.2 to limit the first clamping piece 2.2 from continuing to move towards the second clamping piece 2.3, thereby restricting the moving stroke of the first clamping piece 2.2 and preventing the first clamping piece 2.2 from applying too much pressure on the second clamping piece 2.3, resulting in poor rotation.

[0028] As Figure 3 shown, preferably, the fixing bracket 1.1 includes a fixing sleeve 3.3 sleeved on the top of the connecting cannula 1, and a support column 3.4 inserted on the fixing sleeve 3.3, and the fixing pipe clamp 1.2 is arranged on the support column 3.4. The entire fixing pipe clamp 1.2 can slide up and down along the support column 3.4, so that multiple points of the tracheal catheter can be clamped and fixed by a plurality of fixing pipe clamps 1.2 to ensure the reliability of fixing the tracheal catheter.

[0029] For example, two fixed pipe clamps 1.2 are provided on the support column 3.4 and are respectively arranged at both ends of the support column 3.4, which further improves the reliability of fixing the catheter. Moreover, two fixed pipe clamps 1.2 with different calibers can also be arranged at both ends of the support column 3.4, so as to expand the compatible range of the fixed pipe clamps 1.2 and improve the convenience for the operator.

[0030] Such as Figure 5 As shown, preferably, a rotating groove 4.3 is formed on the clamping body 2.1, and the second clamping piece 2.3 is rotatably arranged in the rotating groove 4.3, which improves the stability of the second clamping piece 2.3 during rotation.

[0031] Such as Figure 4 As shown, preferably, the first clamping piece 2.2 and the second clamping piece 2.3 have rotating parts extending out of the clamping body 2.1, so as to improve the convenience for the operator during adjustment.

[0032] Such as Figures 6 to 9 As shown, for a further explanation of the implementation manner of the balloon assembly 3 in this embodiment, a first inflatable pipeline 5.1 and a second inflatable pipeline 5.2 are formed inside the pipe wall of the connecting cannula 1. The balloon assembly 3 includes a first balloon 5.3 disposed around the insertion end of the connecting cannula 1, and a second balloon 5.4 extending out of the insertion end of the connecting cannula 1. A first inflatable tube 5.5 connecting the first balloon 5.3 is arranged in the first inflatable pipeline 5.1, and a second inflatable tube 5.6 connecting the second balloon 5.4 is arranged in the second inflatable pipeline 5.2. The first balloon 5.3 and the second balloon 5.4 can be inflated by the first inflatable tube 5.5 and the second inflatable tube 5.6, so as to expand the airway and support the throat, improving the smoothness during the catheter insertion process.

[0033] Specifically, a downwardly bent guiding convex part 6.1 is connected to the insertion end of the connecting cannula 1. The second balloon 5.4 is formed on the guiding convex part 6.1, and the first balloon 5.3 is disposed around the outer periphery of the guiding convex part 6.1. The cooperation between the first balloon 5.3 and the second balloon 5.4 can support the throat, enabling the catheter to pass smoothly. Moreover, during the insertion of the connecting cannula 1, the guiding convex part 6.1 can drive the second balloon 5.4 to move, preventing the second balloon 5.4 from being stuck by the airway during insertion and improving the smoothness of the insertion of the connecting cannula 1.

[0034] Furthermore, the caliber of the first balloon 5.3 has a converging trend from top to bottom, and the guiding convex part 6.1 is attached to the lower half of the first balloon 5.3. The expansion area of the upper half of the first balloon 5.3 is larger than that of the lower half. Since the guiding convex part 6.1 is inserted into the guiding channel 2, the contraction of the lower half of the first balloon 5.3 ensures the caliber size of the entire guiding channel 2, thus making the tracheal insertion smoother.

[0035] Meanwhile, the second balloon 5.4 is arranged on the guiding convex part 6.1 extending out of the guiding channel 2 and cooperates with the first balloon 5.3, ensuring the sealing performance of fitting with the tracheal wall.

[0036] In addition, a clamping piece 6.2 is inserted on the guiding convex part 6.1 to keep the guiding convex part 6.1 in a downward-bending posture, making it smoother for the second balloon 5.4 to enter the airway. And the extension piece extends along the length direction of the guiding convex part 6.1 and is embedded in the guiding convex part 6.1, further enhancing the connection reliability between the clamping piece 6.2 and the guiding convex part 6.1.

[0037] Preferably, the first inflation tube 5.5 and the second inflation tube 5.6 are inserted into the guiding convex part 6.1, thereby further enhancing the angle-holding effect of the guiding convex part 6.1.

[0038] As Figure 2 、 Figure 9 shown, preferably, an inspection channel 4.4 for inserting other inspection catheters is further formed inside the tube wall of the connecting cannula 1. Other inspection catheters can enter through the inspection channel 4.4 for inspection or sampling, further improving the convenience for the operator.

[0039] As Figure 2 shown, preferably, the connecting cannula 1 is bent, and the bending angle is 125°, making it smoother for the catheter to enter the throat and being more ergonomic.

[0040] This specific embodiment is only an explanation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An airway intubation with an instrument channel, characterized in that, It includes a connecting cannula (1), a guiding channel (2) for the tracheal catheter to pass through is formed inside the connecting cannula (1), a balloon assembly (3) is arranged at the insertion end of the connecting cannula (1), and an inflation channel (4) for inflating the balloon assembly (3) is formed inside the tube wall of the connecting cannula (1); A fixing assembly (5) for clamping the tracheal catheter is arranged at the top of the connecting cannula (1). The fixing assembly (5) includes a fixing bracket (1.1) arranged on the connecting cannula (1), and a plurality of fixing pipe clamps (1.2) arranged on the fixing bracket (1.1), and a fixing groove (1.3) for clamping the tracheal catheter is formed on the fixing pipe clamp (1.2); The fixing pipe clamp (1.2) includes a clamping main body (2.1) arranged on the fixing bracket (1.1), a first clamping piece (2.2) rotatably arranged on the clamping main body (2.1), and a second clamping piece (2.3) hinged on the clamping main body (2.1). A first clamping tooth (2.4) is formed on the first clamping piece (2.2), a second clamping tooth (2.5) which is clamped with the first clamping tooth (2.4) is formed on the second clamping piece (2.3), and the fixing groove (1.3) is formed between the second clamping piece (2.3) and the clamping main body (2.1). The second clamping piece (2.3) rotates along the clamping main body (2.1) to adjust the diameter of the fixing groove (1.3).

2. The airway intubation with an instrument channel according to claim 1, wherein, The first clamping teeth (2.4) and the second clamping teeth (2.5) are arranged in a staggered manner, and an elastic element (3.1) is arranged on the clamping main body (2.1). One end of the elastic element (3.1) abuts against the clamping main body (2.1), and the other end abuts against the second clamping piece (2.3), so that the second clamping tooth (2.5) always has a movement tendency in the direction of abutting against the first clamping tooth (2.4).

3. The airway intubation with an instrument channel according to claim 1, characterized in that, An elastic block (3.2) is arranged on the clamping main body (2.1), and the elastic block (3.2) abuts against the first clamping piece (2.2), so that the first clamping piece (2.2) always has a movement tendency of rotating towards the second clamping piece (2.3).

4. The airway intubation with an instrument channel according to claim 1, characterized in that, The fixing bracket (1.1) includes a fixing sleeve (3.3) sleeved on the top of the connecting cannula (1), and a support column (3.4) inserted on the fixing sleeve (3.3), and the fixing pipe clamp (1.2) is arranged on the support column (3.4).

5. The airway intubation with an instrument channel according to claim 4, characterized in that, A limiting column (4.1) is inserted on the clamping main body (2.1), and the first clamping piece (2.2) rotates along the limiting column (4.1) and compresses the elastic block (3.2), so that the first clamping tooth (2.4) is away from the second clamping tooth (2.5).

6. The airway intubation with an instrument channel according to claim 4, wherein A limiting convex part (4.2) is formed on the clamping main body (2.1), and the limiting convex part (4.2) abuts against the first clamping piece (2.2) to limit the movement of the first clamping piece (2.2) towards the second clamping piece (2.3).

7. The airway intubation with an instrument channel according to claim 1, characterized in that, A rotating groove (4.3) is formed on the clamping main body (2.1), and the second clamping piece (2.3) is rotatably arranged in the rotating groove (4.3).

8. The airway intubation with an instrument channel according to claim 1, wherein, A first inflation pipeline (5.1) and a second inflation pipeline (5.2) are formed inside the tube wall of the connecting cannula (1). The balloon assembly (3) includes a first balloon (5.3) disposed around the insertion end of the connecting cannula (1) and a second balloon (5.4) extending out of the insertion end of the connecting cannula (1). A first inflation tube (5.5) connecting the first balloon (5.3) is disposed inside the first inflation pipeline (5.1), and a second inflation tube (5.6) connecting the second balloon (5.4) is disposed inside the second inflation pipeline (5.2).

9. The airway intubation with an instrument channel according to claim 1, characterized in that, An inspection channel (4.4) for inserting other inspection catheters is further formed inside the tube wall of the connecting cannula (1).

10. The airway intubation with an instrument channel according to claim 1, wherein The connecting cannula (1) is bent, and the bending angle is 125°.

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