Tracheal catheter
By coating the surface of the endotracheal tube with an antibacterial agent and setting up a connecting air bag and a negative pressure suction component, the problem of ventilator-associated pneumonia caused by the inhalation of retained material on the air bag was solved, achieving the effect of reducing biofilm formation and clearing retained material.
Patent Information
- Application Number
- CN202422749807.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-11
AI Technical Summary
During the use of existing endotracheal tubes, the residue on the cuff can be inhaled into the lower respiratory tract through the gap between the cuff and the airway, leading to the occurrence and recurrence of ventilator-associated pneumonia. Furthermore, the formation of biofilm around the endotracheal tube is difficult to prevent effectively.
An endotracheal tube was designed with an antibacterial coating on the main body and multiple interconnected air sacs and a negative pressure suction component. The antibacterial effect of the silver coating reduces the formation of bacterial biofilm, and the negative pressure suction component removes trapped material, preventing it from entering the lower airway.
It effectively prevents trapped material from entering the lower airway, reduces the incidence of ventilator-associated pneumonia, reduces the formation of bacterial biofilm on the endotracheal tube surface, and lowers the risk of aspiration in patients.
Smart Images
Figure CN223615233U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of medical devices, and in particular to a tracheal tube. Background Technology
[0002] An endotracheal tube is a medical device inserted into a patient's trachea and / or bronchi to create a temporary artificial breathing channel for the patient, especially those who cannot breathe independently. However, the establishment of an artificial airway disrupts the body's normal swallowing and coughing functions. In existing endotracheal tubes, a cuff is usually placed on the outer wall of the tube body to seal the airway. However, oral secretions and gastroesophageal reflux can accumulate on the cuff, forming cuff residue. The inhalation of a small amount of the bacterially contaminated cuff residue into the lower respiratory tract through the gap between the cuff and the airway is the main pathogenic mechanism of ventilator-associated pneumonia (VAP). Furthermore, the formation of a biofilm around existing endotracheal tubes is one of the mechanisms for the occurrence and recurrence of VAP. Utility Model Content
[0003] Based on this, the technical problem solved by this utility model is to provide a tracheal tube that can reduce the inhalation of contaminated secretions around the tracheal cuff and the formation of biofilm around the tracheal tube.
[0004] This utility model provides the following technical solution: a tracheal tube, comprising:
[0005] The catheter body is used to be inserted into the trachea. The surface of the catheter body is coated with an antibacterial agent. The catheter body includes a cylindrical main body and a hollow cavity formed in the middle of the main body from top to bottom.
[0006] A sealing assembly for preventing secretions from entering the lower airway, the sealing assembly comprising a plurality of airbags arranged sequentially along the axial direction of the lower part of the main body, the plurality of airbags being interconnected, a connecting tube provided on the main body, one end of the connecting tube being connected to at least one of the airbags, and a guide balloon provided on the other end of the connecting tube, the guide balloon being used to connect to an airbag pressure gauge, through which air is inflated into the airbag;
[0007] A negative pressure suction assembly is used to suction secretions retained on the uppermost airbag. The negative pressure suction assembly includes a suction tube disposed on the main body. The suction end of the suction tube is close to the upper wall of the uppermost airbag. The end of the suction tube away from the suction end is connected to a connector, which is connected to a negative pressure suction device.
[0008] Furthermore, the surface of the catheter body is provided with an antibacterial coating, which is a silver-plated coating.
[0009] Furthermore, two airbags are arranged sequentially along the axial direction at the lower part of the main body, and the two airbags are interconnected.
[0010] Furthermore, a connecting tube is provided between the two airbags, and the two airbags are connected through the connecting tube.
[0011] Furthermore, both airbags are cylindrical in shape when inflated.
[0012] Furthermore, the lower part of the connecting tube is fixedly connected to the main body, while the upper part of the connecting tube is in a movable state; the lower part of the suction tube is fixedly connected to the main body, while the upper part of the suction tube is in a movable state.
[0013] Furthermore, the lower part of the suction tube passes through the outer wall of the main body and is fixedly connected to the main body, and the suction end of the lower part of the main body passes through the outer wall of the main body and is located on the upper wall of the upper airbag.
[0014] Furthermore, the lower part of the connecting tube passes through the outer wall of the main body and is fixedly connected to the main body, and the lower end of the connecting tube passes through the outer wall of the main body and is connected to one of the airbags.
[0015] The beneficial effects of this invention are as follows: the two airbags can more effectively achieve pressure sealing, preventing the contents of the airbags from entering the lower airway and thus preventing ventilator-associated pneumonia. Furthermore, the silver coating on the surface of the tubing body, with its broad-spectrum antibacterial properties, reduces the formation of bacterial biofilm on the endotracheal tube surface and the bacterial colonization in the lower respiratory tract, thereby lowering the incidence of ventilator-associated pneumonia. In addition, the negative pressure suction component generates negative pressure, allowing the suction device to draw out secretions retained at the uppermost airbag through the suction tube, thus reducing aspiration in patients. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a three-dimensional structural diagram of the sealing component of this utility model.
[0018] Figure 3 This is a partial three-dimensional structural diagram of the sealing component of this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the negative pressure suction component of this utility model.
[0020] Figure 5 This is a partial three-dimensional structural diagram of the negative pressure suction component of this utility model.
[0021] The labels in the attached diagram are as follows: 1-catheter body, 11-main body, 12-hollow cavity, 13-introduction part, 2-negative pressure suction assembly, 21-suction tube, 22-connector, 23-suction end, 3-sealing assembly, 31-connecting tube, 32-first airbag, 33-guide balloon, 34-connecting tube, 35-second airbag. Detailed Implementation
[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0023] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] A type of endotracheal tube, such as Figure 1 As shown, it includes: catheter body 1, sealing assembly 3, and negative pressure suction assembly 2;
[0026] The catheter body 1 is used for insertion into the trachea, and the surface of the catheter body 1 is coated with an antibacterial agent, such as... Figure 2 As shown, the catheter body 1 includes a cylindrical body portion 11, through which a hollow cavity 12 is formed from top to bottom in the middle of the body portion 11;
[0027] Specifically, the outer wall of the main body 11 is coated with an antibacterial agent, which is a silver-plated coating. Silver ions have a broad-spectrum antibacterial effect, and in vitro, animal and preliminary clinical studies have shown that endotracheal tubes with silver-plated coatings have a beneficial effect in reducing biofilm formation and lower respiratory tract bacterial colonization. The hollow cavity 12 formed in the middle of the main body 11 is also cylindrical. One end of the main body 11 is connected to the ventilator through the breathing tube to maintain the patient's breathing, and the other end is inserted into the trachea. The end of the main body 11 that is inserted into the trachea is a slightly inclined inlet 13. The entire main body 11 is made of flexible material, which can be bent and reduces the friction of the mucosal tissue when the endotracheal tube is inserted.
[0028] Sealing component 3 is used to prevent secretions from flowing into the lower airway, such as Figure 2 and Figure 3 As shown, the sealing assembly 3 includes a plurality of airbags arranged sequentially along the axial direction of the lower part of the main body 11, the plurality of airbags being interconnected, a connecting pipe 31 provided on the main body 11, one end of the connecting pipe 31 being connected to at least one of the airbags, and a guide balloon 33 provided on the other end of the connecting pipe 31, the guide balloon 33 being used to connect to an airbag pressure gauge, through which air is inflated into the airbag;
[0029] Specifically, in this embodiment, there are two air bladders. When inflated, the air bladders are cylindrical, which better conforms to the shape of the patient's trachea, allowing the air bladders to fit fully against the patient's trachea. The two air bladders are shown as the first air bladder 32 and the second air bladder 35 in the attached drawings. In other embodiments, the number of air bladders can be increased according to the actual situation. Compared with the traditional single air bladder, the double cylindrical air bladders can more effectively achieve pressure sealing, preventing the contents of the air bladder from entering the lower airway, thereby preventing ventilator-associated pneumonia. In addition, the air bladders are made of polyurethane, which has an ultra-thin structure, thereby reducing the pressure on the airway wall and alleviating airway wall ischemia.
[0030] Understandably, when medical staff insert an endotracheal tube into a patient's trachea, they can connect the guiding balloon 33 to the balloon pressure gauge. By inflating the balloon pressure gauge, gas will flow from the guiding balloon 33 into the connecting tube 31 and from the connecting tube 31 into the balloon. Since the two balloons are connected, they can be inflated simultaneously. Once the balloons are inflated, the medical staff can stop the inflation by operating the balloon pressure gauge, thus sealing the patient's trachea. When it is necessary to remove the endotracheal tube from the patient's trachea, the medical staff only need to operate the balloon pressure gauge to release the gas in the balloons and then remove the endotracheal tube.
[0031] Negative pressure suction component 2 is used to suction secretions retained on the uppermost airbag, such as... Figure 4 and Figure 5As shown, the negative pressure suction assembly 2 includes a suction tube 21 disposed on the main body 11. The suction end 23 of the suction tube 21 is located near the upper wall of the uppermost airbag. The end of the suction tube 21 away from the suction end 23 is connected to a connector 22, which is connected to the negative pressure suction device.
[0032] It is understandable that when secretions accumulate at the top air sac, medical staff can connect connector 22 to a negative pressure suction device. The negative pressure suction device will generate negative pressure, thereby suctioning out the secretions retained at the top air sac through suction tube 21, thus reducing the risk of aspiration by the patient.
[0033] A connecting pipe 34 is provided between the two airbags, and the two airbags are connected through the connecting pipe 34.
[0034] It is understood that in this embodiment, the two airbags are connected by a connecting tube 34, so that the two airbags can be inflated simultaneously when the airbags are inflated.
[0035] The lower part of the connecting tube 31 is fixedly connected to the main body 11, and the upper part of the connecting tube 31 is in a movable state; the lower part of the suction tube 21 is fixedly connected to the main body 11, and the upper part of the suction tube 21 is in a movable state.
[0036] It is understandable that by making the upper part of the connecting tube 31 movable, medical personnel can easily connect the guide balloon 33 on the connecting tube 31 to the balloon pressure gauge; by making the upper part of the suction tube 21 movable, medical personnel can connect the connector 22 on the suction tube 21 to the negative pressure suction device; and by fixing the lower part of the suction tube 21 and the lower part of the connecting tube 31 to the main body 11, medical personnel can easily insert the endotracheal tube into the patient's trachea.
[0037] The lower part of the suction tube 21 passes through the outer wall of the main body 11 and is fixedly connected to the main body 11. The suction end 23 at the lower part of the main body 11 passes through the outer wall of the main body 11 and is located on the upper wall of the upper airbag. The lower part of the connecting tube 31 passes through the outer wall of the main body 11 and is fixedly connected to the main body 11. The lower end of the connecting tube 31 passes through the outer wall of the main body 11 and is connected to one of the airbags.
[0038] It is understandable that by having the lower part of the suction tube 21 penetrate the outer wall of the main body 11 and the lower part of the connecting tube 31 penetrate the outer wall of the main body 11, the lower parts of the suction tube 21 and the lower part of the connecting tube 31 can be prevented from being exposed on the outer wall of the main body 11, so that medical staff can insert the endotracheal tube into the patient's trachea and reduce the patient's discomfort when inserting the endotracheal tube.
[0039] In summary, the two cuffs provide a more effective pressure seal, preventing trapped material from entering the lower airway and thus preventing ventilator-associated pneumonia. Furthermore, the silver coating on the surface of the tubing body 1 utilizes the broad-spectrum antibacterial properties of silver ions, reducing bacterial biofilm formation on the tubing surface and lower respiratory tract bacterial colonization, thereby lowering the incidence of ventilator-associated pneumonia. Additionally, the negative pressure suction component 2 generates negative pressure, allowing secretions trapped at the uppermost cuff to be suctioned out through the suction tube 21, reducing aspiration.
[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A tracheal tube, characterized in that, include: The catheter body is used to be inserted into the trachea. The surface of the catheter body is coated with an antibacterial agent. The catheter body includes a cylindrical main body and a hollow cavity formed in the middle of the main body from top to bottom. A sealing assembly for preventing secretions from entering the lower airway, the sealing assembly comprising a plurality of airbags arranged sequentially along the axial direction of the lower part of the main body, the plurality of airbags being interconnected, a connecting tube provided on the main body, one end of the connecting tube being connected to at least one of the airbags, and a guide balloon provided on the other end of the connecting tube, the guide balloon being used to connect to an airbag pressure gauge, through which air is inflated into the airbag; A negative pressure suction assembly is used to suction secretions retained on the uppermost airbag. The negative pressure suction assembly includes a suction tube disposed on the main body. The suction end of the suction tube is close to the upper wall of the uppermost airbag. The end of the suction tube away from the suction end is connected to a connector, which is connected to a negative pressure suction device.
2. The endotracheal tube according to claim 1, characterized in that, The surface of the catheter body is provided with an antibacterial agent coating, which is a silver-plated coating.
3. The endotracheal tube according to claim 1, characterized in that, Two airbags are arranged sequentially along the axial direction at the lower part of the main body, and the two airbags are interconnected.
4. The endotracheal tube according to claim 3, characterized in that, A connecting tube is provided between the two airbags, and the two airbags are connected through the connecting tube.
5. The endotracheal tube according to claim 3 or 4, characterized in that, The two airbags are cylindrical when inflated.
6. The endotracheal tube according to claim 1, characterized in that, The lower part of the connecting tube is fixedly connected to the main body, while the upper part of the connecting tube is in a movable state; the lower part of the suction tube is fixedly connected to the main body, while the upper part of the suction tube is in a movable state.
7. The endotracheal tube according to claim 6, characterized in that, The lower part of the suction tube passes through the outer wall of the main body and is fixedly connected to the main body. The suction end of the lower part of the main body passes through the outer wall of the main body and is located on the upper wall of the upper airbag.
8. The endotracheal tube according to claim 6 or 7, characterized in that, The lower part of the connecting tube passes through the outer wall of the main body and is fixedly connected to the main body. The lower end of the connecting tube passes through the outer wall of the main body and is connected to one of the airbags.