Airway cannula with instrument channel

Abstract

The application discloses an airway cannula with an instrument channel, which comprises a connecting cannula, a guide channel is formed in the connecting cannula for the tracheal catheter to pass through, a balloon assembly is arranged at the placement end of the connecting cannula, an inflation channel is formed in the wall of the connecting cannula for the balloon assembly to inflate, a fixing assembly for clamping the tracheal catheter is arranged at the top of the connecting cannula, 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 for clamping the tracheal catheter is formed in the fixing tube clamp; the fixing tube clamp comprises a clamping main body arranged on the fixing support, a first clamping piece pivotally arranged on the clamping main body and a second clamping piece hingedly arranged on the clamping main body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an airway cannula with a device channel. BACKGROUND

[0002] Endotracheal intubation is an important medical operation technique, that is, a specially designed endotracheal tube is inserted into the patient's trachea through the oral cavity or nasal cavity to establish an artificial airway, ensuring the patient's respiratory tract and life safety.

[0003] The purposes of endotracheal intubation include maintaining airway patency, providing respiratory support, protecting the airway, facilitating airway management, and gaining time for further treatment, etc., as follows:

[0004] 1. Maintaining airway patency: In many cases, such as foreign body obstruction of airway, laryngeal edema, severe asthma attack, etc., the patient's natural airway may be obstructed, leading to respiratory difficulty or even respiratory arrest. Endotracheal intubation can quickly remove foreign bodies or secretions in the airway, restore the patency of the airway, and ensure that oxygen can enter the lungs smoothly. For example, in patients with acute laryngitis, laryngeal swelling may severely affect breathing, and endotracheal intubation can provide life-saving airway support for the patient.

[0005] 2. Providing respiratory support: For patients with respiratory failure, whether due to lung disease, neurological disease or other causes, endotracheal intubation can be connected to a breathing machine or other respiratory assistance device to provide mechanical ventilation for the patient, helping the patient to breathe. For example, patients with severe pneumonia may have severe hypoxemia and hypercapnia, and treatment with endotracheal intubation and a breathing machine can improve the patient's respiratory function and maintain vital signs.

[0006] 3. Protecting the airway: Comatose patients or patients with reduced swallowing reflex are prone to aspiration, i.e., stomach contents or other foreign bodies are sucked into the airway, leading to lung infection or even suffocation. Endotracheal intubation can effectively protect the airway and prevent aspiration, for example, patients with cerebral hemorrhage coma often need endotracheal intubation during emergency treatment to avoid serious consequences caused by aspiration.

[0007] When the airway cannula is inserted and an artificial airway is established, a tracheal tube or a visual device needs to be inserted into the artificial airway. The conventional structure of the airway cannula can only fix a single caliber tracheal tube or visual device, so it cannot be compatible with tracheal tubes and visual devices of different sizes, causing inconvenience to medical personnel. SUMMARY

[0008] To solve the technical problems in the background art, the present application provides an airway cannula with a device channel.

[0009] The technical scheme adopted by the present application to solve the technical problems is as follows:

[0010] An airway cannula with an instrument channel comprises a connecting cannula, a guide channel is formed in the connecting cannula for the tracheal tube to pass through, a balloon assembly is arranged at the insertion end of the connecting cannula, and an inflation channel is formed in the wall of the connecting cannula for the balloon assembly to inflate;

[0011] A fixing assembly for clamping the tracheal tube is arranged at the top of the connecting cannula, the fixing assembly comprises a fixing support arranged on the connecting cannula, and a plurality of fixing clamps arranged on the fixing support, and a fixing groove for clamping the tracheal tube is formed in the fixing clamp;

[0012] The fixing clamp comprises a clamping body arranged on the fixing support, a first clamping piece arranged on the clamping body, and a second clamping piece hinged to the clamping body, a first clamping tooth is formed on the first clamping piece, a second clamping tooth is formed on the second clamping piece and engaged with the first clamping tooth, and the fixing groove is formed between the second clamping piece and the clamping body, and the second clamping piece rotates along the clamping body to adjust the caliber of the fixing groove.

[0013] Preferably, the first clamping tooth and the second clamping tooth are arranged alternately, and a resilient element is arranged on the clamping body, one end of the resilient element abuts against the clamping body, and the other end abuts against the second clamping piece, so that the second clamping tooth always has a movement trend of abutting against the first clamping tooth, and through the above improvement, since the first clamping tooth and the second clamping tooth are arranged alternately, the first clamping tooth and the second clamping tooth abut against each other to clamp and fix the tracheal tube through the action of the resilient element on the second clamping piece, thereby ensuring the reliability of the fixation of the tracheal tube.

[0014] Preferably, an elastic block is arranged on the clamping body and abuts against the first clamping piece, so that the first clamping piece always has a movement trend of rotating towards the second clamping piece, and through the above improvement, the first clamping piece is close to the second clamping piece through the action of the elastic block on the first clamping block, so that the first clamping tooth and the second clamping tooth abut against each other to clamp and fix the tracheal tube, thereby ensuring the reliability of the fixation of the tracheal tube.

[0015] Preferably, the fixing support comprises a fixing sleeve sleeved on the top of the connecting cannula, and a support column inserted into the fixing sleeve, and the fixing clamp is arranged on the support column, and through the above improvement, the entire fixing clamp can slide up and down along the support column, so that a plurality of points of the tracheal tube can be clamped and fixed through a plurality of fixing clamps, thereby ensuring the reliability of the fixation of the tracheal tube.

[0016] Preferably, a limiting column is arranged on the clamping body, the first clamping piece rotates along the limiting column and compresses the elastic block, so that the first clamping tooth is away from the second clamping tooth, through the above improvement, the first clamping piece rotates along the limiting column, the first clamping piece rotates away from the second clamping piece, and the elastic block is extruded, so that the second clamping piece can rotate clockwise without the restriction of the first clamping tooth, so as to expand the caliber of the whole fixing groove, so as to match the tracheal catheter of different caliber.

[0017] Preferably, a limiting convex part is formed on the clamping 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, when 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 movement of the first clamping piece towards the second clamping piece.

[0018] Preferably, a rotating groove is formed on the clamping body, and the second clamping piece is arranged in the rotating groove, through the above improvement, the stability of the second clamping piece in the rotating process is improved.

[0019] Preferably, the first inflation pipe and the second inflation pipe are arranged in the wall of the connecting cannula, the balloon assembly comprises a first balloon arranged around the insertion end of the connecting cannula and a second balloon extending out of the insertion end of the connecting cannula, and the first inflation pipe connected with the first balloon is arranged in the first inflation pipe, and the second inflation pipe connected with the second balloon is arranged in the second inflation pipe, through the above improvement, the first balloon and the second balloon can be inflated by the first inflation pipe and the second inflation pipe, so as to expand the airway and support the throat, and the smoothness in the process of inserting the catheter is improved.

[0020] Preferably, an examination channel for inserting other examination catheters is further arranged in the wall of the connecting cannula, through the above improvement, other examination catheters can enter through the examination channel for examination or sampling.

[0021] Preferably, the connecting cannula is arranged in a curved manner, and the bending angle is 125°, through the above improvement, the catheter enters the throat more smoothly, and is more in line with human engineering.

[0022] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0023] A fixing assembly is provided at the top of the connecting cannula, and the tracheal tube is fixed by the fixing assembly to ensure the stability of the tracheal tube. The fixing assembly includes a fixing bracket and several fixed tube clamps provided on the fixing bracket. The fixed tube clamp forms a fixing groove for clamping the tracheal tube. The fixed tube clamp includes a clamping body provided on the fixing bracket, a first clamping piece rotated on the clamping body, and a second clamping piece hinged on the clamping body. A first engaging tooth is formed on the first clamping piece, and a second engaging tooth engaged with the first engaging tooth is formed on the second clamping piece. The fixing groove is formed between the second clamping piece and the clamping body. The second clamping piece rotates along the clamping body to adjust the diameter of the fixing groove, thereby cooperating with tracheal tubes or visual equipment of different sizes, and ensuring the stability of the tracheal tube to avoid damage to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a cross-sectional view of the overall structure of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the fixing assembly of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the fixed pipe clamp of the present invention;

[0028] Figure 5 is a cross-sectional view of the fixed pipe clamp of the present invention;

[0029] Figure 6 This is a schematic diagram of the internal structure of the connecting cannula of the present invention;

[0030] Figure 7 For the present invention Figure 6 A partial enlarged view of point A in the middle;

[0031] Figure 8 This is a schematic structural diagram of the top of the connecting cannula of the present invention;

[0032] Figure 9 For the present invention Figure 8 A partial enlarged view of point B in the middle;

[0033] In the figure: 1. Connecting cannula; 2. Guide channel; 3. Balloon assembly; 4. Inflation channel; 5. Fixing assembly; 1.1. Fixing bracket; 1.2. Fixing tube clamp; 1.3. Fixing groove; 2.1. Clamping body; 2.2. First clamping piece; 2.3. Second clamping piece; 2.4. First engaging tooth; 2.5. Second engaging tooth; 3.1. Elastic element; 3.2. Elastic block; 3.3. Fixing sleeve; 3.4. Support column; 4.1. Limiting column; 4.2. Limiting protrusion; 4.3. Rotating groove; 4.4. Inspection channel; 5.1. First inflation pipeline; 5.2. Second inflation pipeline; 5.3. First balloon; 5.4. Second balloon; 5.5. First inflation tube; 5.6. Second inflation tube; 6.1. Guide protrusion; 6.2. Clip. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] It should be understood that although terms such as upper, middle, lower, top, end, etc. appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for ease of understanding, and are not used to define any direction or order limitation.

[0036] like Figures 1-9 As shown, an airway cannula with an instrument channel includes a connecting cannula 1, a guide channel 2 for an endotracheal catheter to pass through is formed in the connecting cannula 1, a balloon assembly 3 is provided at the insertion end of the connecting cannula 1, and an inflation channel 4 for inflating the balloon assembly 3 is formed in the tube wall of the connecting cannula 1.

[0037] Specifically, a fixing assembly 5 for clamping the endotracheal tube is provided at the top of the connecting cannula 1. The fixing assembly 5 includes a fixing bracket 1.1 provided on the connecting cannula 1, and a plurality of fixing tube clamps 1.2 provided on the fixing bracket 1.1. The fixing tube clamps 1.2 are provided with fixing grooves 1.3 for clamping the endotracheal tube.

[0038] Further, the fixed pipe clamp 1.2 comprises a clamping body 2.1 arranged on the fixed support 1.1, a first clamping piece 2.2 arranged on the clamping body 2.1, and a second clamping piece 2.3 hinged on the clamping body 2.1, the first clamping piece 2.2 is formed with a first clamping tooth 2.4, the second clamping piece 2.3 is formed with a second clamping tooth 2.5 clamped with the first clamping tooth 2.4, and a fixed groove 1.3 is arranged between the second clamping piece 2.3 and the clamping body 2.1. The fixed groove 1.3 is kept at the current caliber by clamping the first clamping piece 2.2 and the second clamping piece 2.3.

[0039] In use, the second clamping piece 2.3 can be driven to rotate along the clamping body 2.1 to adjust the caliber of the fixed groove 1.3, so as to match the tracheal tube or visual equipment of different sizes and ensure the stability of the tube to avoid damage to the patient.

[0040] As shown in Figures 3 to 5 Further explanation of the embodiments of the first clamping piece 2.2 and the second clamping piece 2.3, the first clamping tooth 2.4 and the second clamping tooth 2.5 are staggered, and the clamping body 2.1 is provided with a resilient element 3.1, one end of the resilient element 3.1 abutting against the clamping body 2.1, and the other end abutting against the second clamping piece 2.3, so that the second clamping tooth 2.5 always has a movement trend of abutting against the first clamping tooth 2.4.

[0041] Because the first clamping tooth 2.4 and the second clamping tooth 2.5 are staggered, the second clamping tooth 2.5 is abutted with the second clamping tooth 2.5 by the action of the resilient element 3.1 on the second clamping piece 2.3, so as to clamp and fix the tracheal tube, and ensure the reliability of the tracheal tube fixation.

[0042] Further, the clamping body 2.1 is provided with a resilient block 3.2 abutting against the first clamping piece 2.2, so that the first clamping piece 2.2 always has a movement trend of rotating towards the second clamping piece 2.3, and the first clamping piece 2.2 is close to the second clamping piece 2.3 by the action of the resilient block 3.2 on the first clamping piece 2.2, so that the first clamping tooth 2.4 is abutted with the second clamping tooth 2.5, to clamp and fix the tracheal tube, and ensure the reliability of the tracheal tube fixation.

[0043] At the same time, the clamping body 2.1 is inserted with a limiting column 4.1, when it is necessary to enlarge the fixed groove 1.3, the first clamping piece 2.2 can be driven to rotate along the limiting column 4.1, so that the first clamping piece 2.2 extrudes the resilient block 3.2, so that the first clamping tooth 2.4 is away from the second clamping tooth 2.5, and the second clamping piece 2.3 can be rotated clockwise without the restriction of the first clamping tooth 2.4, to expand the caliber of the whole fixed groove 1.3, to match the tracheal tube of different caliber.

[0044] In addition, a limiting protrusion 4.2 is formed on the clamping body 2.1. When the first clamping piece 2.2 rotates a certain distance under the action of the elastic block 3.2, the first clamping piece 2.2 will abut against the limiting protrusion 4.2 to limit the first clamping piece 2.2 from continuing to move toward the second clamping piece 2.3, thereby limiting the moving distance of the first clamping piece 2.2 and preventing the first clamping piece 2.2 from applying excessive pressure to the second clamping piece 2.3, causing poor rotation.

[0045] like Figure 3 As shown, as a preference, 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 a fixing tube clamp 1.2 is provided on the support column 3.4. The entire fixing tube clamp 1.2 can slide up and down along the support column 3.4, so that multiple points of the tracheal tube can be clamped and fixed by multiple fixing tube clamps 1.2 to ensure the reliability of the fixation of the tracheal tube.

[0046] For example, two fixed pipe clamps 1.2 are set on the support column 3.4, and are respectively set at both ends of the support column 3.4 to further improve the reliability of catheter fixation. In addition, two fixed pipe clamps 1.2 with different calibers can also be set at both ends of the support column 3.4 to expand the compatibility range of the fixed pipe clamp 1.2 and improve the convenience of the operator.

[0047] like Figure 5 As shown, preferably, a rotation groove 4.3 is formed on the clamping body 2.1, and the second clamping piece 2.3 is rotated in the rotation groove 4.3, which improves the stability of the second clamping piece 2.3 during the rotation process.

[0048] like Figure 4 As shown, preferably, the first clamping piece 2.2 and the second clamping piece 2.3 have a rotating portion extending out of the clamping body 2.1, thereby improving the convenience of the operator during the adjustment process.

[0049] like Figures 6 to 9 As shown, a further explanation of the implementation method of the balloon assembly 3 in this embodiment is provided. A first inflation pipeline 5.1 and a second inflation pipeline 5.2 are formed in the tube wall of the connecting cannula 1. The balloon assembly 3 includes a first balloon 5.3 arranged in a ring 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 connected to the first balloon 5.3 is provided in the first inflation pipeline 5.1, and a second inflation tube 5.6 connected to the second balloon 5.4 is provided in the second inflation pipeline 5.2. The first inflation tube 5.5 and the second inflation tube 5.6 can be used to inflate the first balloon 5.3 and the second balloon 5.4, thereby expanding the airway and supporting the throat, thereby improving the smoothness of the catheter insertion process.

[0050] Specifically, the connecting cannula 1 is provided with a downwardly curved guide protrusion 6.1 at the insertion end, the second balloon 5.4 is formed on the guide protrusion 6.1, and the first balloon 5.3 is arranged around the outer periphery of the guide protrusion 6.1. The cooperation of the first balloon 5.3 and the second balloon 5.4 can support the larynx to facilitate the smooth passage of the catheter. In addition, the guide protrusion 6.1 can drive the second balloon 5.4 to move during the insertion of the connecting cannula 1, so as to avoid the second balloon 5.4 being stuck in the airway during the insertion, and improve the smoothness of the insertion of the connecting cannula 1.

[0051] Further, the caliber of the first balloon 5.3 has a tendency to contract from top to bottom, and the guide protrusion 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 guide protrusion 6.1 is arranged in the guide channel 2, the contraction of the lower half of the first balloon 5.3 ensures the caliber of the entire guide channel 2, thereby making the tracheal insertion more smooth.

[0052] Meanwhile, the second balloon 5.4 is arranged on the guide protrusion 6.1 extending out of the guide channel 2, and cooperates with the first balloon 5.3 to ensure the sealing property of the larynx wall.

[0053] In addition, the guide protrusion 6.1 is provided with a clamping piece 6.2 inserted thereon, so as to keep the guide protrusion 6.1 in a downwardly curved posture, and make the second balloon 5.4 enter the airway more smoothly. The extension piece extends along the length direction of the guide protrusion 6.1 and is embedded in the guide protrusion 6.1, further improving the reliability of the connection between the clamping piece 6.2 and the guide protrusion 6.1.

[0054] As preferred, the first inflation tube 5.5 and the second inflation tube 5.6 are inserted into the guide protrusion 6.1, thereby further improving the angle maintaining effect of the guide protrusion 6.1.

[0055] As shown in Figure 2 , Figure 9 As preferred, the connecting cannula 1 is provided with an examination channel 4.4 for inserting other examination catheters. The other examination catheters can enter through the examination channel 4.4 for examination or sampling, thereby further improving the convenience of the operator.

[0056] As shown in Figure 2 As preferred, the connecting cannula 1 is provided with an examination channel 4.4 for inserting other examination catheters. The other examination catheters can enter through the examination channel 4.4 for examination or sampling, thereby further improving the convenience of the operator.

[0057] The embodiments are only used for explaining the present application, and are not used for limiting the present application, and the person skilled in the art can make the modification of the embodiments without the creative contribution according to the need after reading the description, and as long as the modification is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. An airway cannula with instrument channel, characterized in that, The utility model provides a kind of tracheal intubation device, including connecting cannula (1), the guide channel (2) for gas supply pipe conduit to pass through is formed in the connecting cannula (1), the balloon assembly (3) is provided at the implantation end of the connecting cannula (1), and inflation channel (4) is formed in the pipe wall of the connecting cannula (1) for the inflation of balloon assembly (3); The top of the connecting cannula (1) is provided with a fixing assembly (5) for clamping the tracheal tube, the fixing assembly (5) includes a fixing support (1.1) provided on the connecting cannula (1), and a plurality of fixing clamps (1.2) provided on the fixing support (1.1), and the fixing clamps (1.2) are provided with fixing grooves (1.3) for clamping the tracheal tube; The fixing clamps (1.2) include a clamping body (2.1) provided on the fixing support (1.1), a first clamping piece (2.2) rotatably arranged on the clamping body (2.1), and a second clamping piece (2.3) hingedly arranged on the clamping body (2.1), the first clamping piece (2.2) is provided with a first clamping tooth (2.4), the second clamping piece (2.3) is provided with a second clamping tooth (2.5) clamped with the first clamping tooth (2.4), and the fixing groove (1.3) is formed between the second clamping piece (2.3) and the clamping body (2.1), the second clamping piece (2.3) rotates along the clamping body (2.1) to adjust the caliber of the fixing groove (1.3); The first clamping tooth (2.4) and the second clamping tooth (2.5) are staggered, and the clamping body (2.1) is provided with an elastic element (3.1), 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 clamping tooth (2.5) always has a movement trend of abutting against the first clamping tooth (2.4); The clamping body (2.1) is provided with a limiting column (4.1), 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); The clamping body (2.1) is provided with an elastic block (3.2), 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 trend of rotating towards the second clamping piece (2.3); The pipe wall of the connecting cannula (1) is provided with a first inflation pipe (5.1) and a second inflation pipe (5.2), the balloon assembly (3) includes a first balloon (5.3) arranged around the implantation end of the connecting cannula (1), and a second balloon (5.4) extending from the implantation end of the connecting cannula (1), and the first inflation pipe (5.1) is provided with a first inflation pipe (5.5) connected with the first balloon (5.3), and the second inflation pipe (5.2) is provided with a second inflation pipe (5.6) connected with the second balloon (5.4). The connecting cannula (1) is provided with a downwardly curved guide protrusion (6.1) at the insertion end, a second balloon (5.4) is arranged on the guide protrusion (6.1), and a first balloon (5.3) is arranged around the outer periphery of the guide protrusion (6.1), the caliber of the first balloon (5.3) has a tendency to contract from top to bottom, the guide protrusion (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, and the second balloon (5.4) is arranged on the guide protrusion (6.1) extending out of the guide channel (2).

2. An airway cannula with instrument channel according to claim 1, wherein, The fixing support (1.1) comprises a fixing sleeve (3.3) sleeved on the top of the connecting cannula (1), and a support column (3.4) inserted into the fixing sleeve (3.3), and the fixing tube clamp (1.2) is arranged on the support column (3.4).

3. An airway cannula with instrument channel according to claim 2, wherein, A limiting protrusion (4.2) is formed on the clamping body (2.1), and the limiting protrusion (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).

4. An airway cannula with instrument channel according to claim 1, wherein, 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).

5. An airway cannula with instrument channel according to claim 1, wherein, An examination channel (4.4) for inserting other examination catheters is further arranged in the wall of the connecting cannula (1).

6. An airway cannula with instrument channel according to claim 1, wherein, The connecting cannula (1) is arranged in a curved manner, and the curved angle is 125°.

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