Four-in-one trachea cannula
By designing a four-in-one tracheal intubation, a conical balloon and a built-in glottic suction and flushing tube, the problem of cylindrical balloon compressing the tracheal mucosa and removing secretions is solved, and a safer and more controllable tracheal tube is achieved Intubation process.
Patent Information
- Application Number
- CN202420483223.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-03-13
AI Technical Summary
The cylindrical sealing balloon of the existing tracheal intubation will compress the inner wall of the tracheal tube after filling, resulting in mucosal compression, and there are many wrinkles during the intubation process, which affects the insertion; excessive inflation of the cuff leads to ischemic damage and tracheal tubes Stenosis, traditional detection methods are subjective or expensive and difficult to popularize; secretions are difficult to remove and form a source of infection.
A four-in-one tracheal intubation is designed with a conical balloon to reduce compression on the tracheal mucosa, a built-in glottic suction tube and flush tube to remove secretions, and an accurate estimate of the conical balloon by the pressure indicator balloon Pressure value reduces interference to the tracheal mucosa.
It effectively avoids excessive compression of the conical balloon on the tracheal mucosa, facilitates intubation, accurately monitors pressure, reduces the risk of infection caused by secretions, and improves the safety and controllability of tracheal intubation.
Smart Images
Figure CN222304549U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a four-in-one endotracheal cannula. Background Art
[0002] Endotracheal intubation is a treatment method to relieve dyspnea caused by laryngeal dyspnea, respiratory dysfunction or retention of lower respiratory tract secretions. It can keep the patient's airway open, improve dyspnea caused by various reasons, and correct the patient's hypoxia.
[0003] At present, endotracheal intubation is widely used in clinical practice. There are the following shortcomings in clinical application: 1: The current occlusion balloon is cylindrical. After being inflated, this shape of balloon will compress a longer section of the tracheal inner wall, resulting in compression of the mucosa of a longer section of the tracheal inner wall. In addition, this shape of balloon has many wrinkles in the contracted state, which affects the insertion of the endotracheal intubation. 2: Studies have found that when the pressure between the cuff and the tracheal wall exceeds the perfusion pressure of the tracheal mucosal capillaries (20-30 mmHg), the tracheal mucosa will suffer ischemic damage. Long-term over-inflation of the cuff can also cause edema and necrosis, ulceration, and necrosis of the tracheal cartilage in the tracheal mucosa compressed by the cuff, fibrous tissue hyperplasia and (or) tracheal collapse, and then tracheal stenosis. Airway stenosis is harmful and difficult to treat. There are three methods for detecting the cuff filling pressure: (1) Finger touch method: Use your finger to touch the elasticity of the indicator cuff like the tip of the nose to indirectly judge the cuff filling pressure. This method is most often used during emergency endotracheal intubation. This method is highly subjective and often causes over-inflation of the cuff. (2) The cuff pressure gauge is reliable and accurate in detecting the cuff filling pressure. However, manual measurement cannot effectively control the cuff pressure, and connecting and disconnecting the pressure measuring tube will cause the cuff to leak. Therefore, when using the cuff pressure gauge to set the cuff filling pressure, it is often higher than the target value. (3) The automatic inflation pump continuous pressure measurement method or the continuous cuff pressure monitoring system has great advantages in continuously monitoring the cuff pressure and stabilizing the cuff pressure, but it is expensive and difficult to popularize in clinical practice. 3: The section from the subglottis to the endotracheal cuff produces a lot of secretions, which are not easy to aspirate, forming a potential source of infection. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide a four-in-one tracheal cannula to overcome one of the technical problems existing in the existing tracheotomy cannula.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A four-in-one endotracheal cannula, comprising a cannula main tube, a balloon filling tube, a glottis suction tube, a glottis flushing tube, and a conical balloon, wherein the balloon filling tube, the glottis suction tube, and the glottis flushing tube are respectively placed inside the cannula main tube; one end of the cannula main tube is connected to an auxiliary joint, and the other end of the cannula main tube is provided with an oblique socket;
[0007] The conical balloon fixing sleeve is arranged on the outer peripheral wall of one end of the cannula main tube close to the oblique insertion port, and the end of the conical balloon with a smaller diameter is close to the oblique insertion port, one end of the balloon filling tube passes through the cannula main tube and is connected with the conical balloon, and the other end of the balloon filling tube passes through the cannula main tube and extends out, and the cannula main tube is provided with a glottal suction opening and a glottal flushing port at intervals on the side wall of the cannula main tube close to the end with a larger diameter of the conical balloon;
[0008] One end of the glottis suction tube passes through the main cannula tube and is connected to the glottis suction opening, and the other end of the glottis suction tube passes through the main cannula tube and extends to the outside; one end of the glottis flushing tube passes through the main cannula tube and is connected to the glottis flushing port, and the other end of the glottis flushing tube passes through the main cannula tube and extends to the outside.
[0009] As an embodiment, one end of the balloon filling tube extending from the cannula main tube is located on one side of the auxiliary joint, one end of the glottic suction tube extending from the cannula main tube is located on one side of the auxiliary joint, and one end of the glottic flushing tube extending from the cannula main tube is located on one side of the auxiliary joint.
[0010] As an embodiment, one end of the balloon filling tube extending out of the cannula main tube is connected to a pressure indicating balloon, and a plurality of circular pressure indicating windows are spaced apart on the side wall of the pressure indicating balloon.
[0011] As an implementation manner, three circular pressure indicating windows are spaced apart on the side wall of the pressure indicating balloon, each of the pressure indicating windows is formed of a thin film structure, and the film thickness of each pressure indicating window is not equal.
[0012] As an embodiment, the glottic suction opening is located between the glottic flushing port and the conical balloon.
[0013] As an embodiment, the distance between the glottis suction opening and the conical balloon is 5 mm to 15 mm.
[0014] As an implementation manner, a through hole is formed through the side wall of the oblique insertion opening.
[0015] As an embodiment, the conical balloon is glued and fixed on the cannula main pipe.
[0016] Compared with the traditional technology, the four-in-one endotracheal tube described in the utility model has the following beneficial effects:
[0017] The utility model connects one end of the intubation tube to the respiratory assistance device, or directly opens it, and inserts the other end with the tapered balloon into the trachea, and the gas mainly enters and exits the respiratory system through the internal channel of the intubation tube; then the tapered balloon is inflated through the balloon filling tube to fill the tapered balloon, thereby achieving the effect of blocking the trachea, and only the outer side of the tapered balloon with a larger diameter will be embedded in the trachea and contact the tracheal mucosa, while the rest of the tapered balloon will not contact the tracheal mucosa, thereby avoiding excessive compression of the tracheal mucosa by the tapered balloon, and furthermore, through the tapered design, there are fewer wrinkles in the contracted state of the tapered balloon, which is convenient for The intubation tube is inserted into the trachea; in addition, the utility model can extract the glottis suction opening through the glottis suction tube, and then the secretions on the conical balloon can be sucked out; in addition, the utility model can more accurately estimate the pressure value in the conical balloon by observing the bulging degree and number of the three pressure indicating windows on the pressure indicating balloon; in addition, the utility model embeds the balloon filling tube, the glottis suction tube, and the glottis flushing tube into the intubation tube, thereby greatly reducing the interference of the balloon filling tube, the glottis suction tube, and the glottis flushing tube on the tracheal mucosa, so as to avoid the adverse situation that the user's tracheal mucosa is irritated due to too many tubes.
[0018] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is one of the structural schematic diagrams of the four-in-one endotracheal tube of the utility model;
[0020] Figure 2 This is the second structural schematic diagram of the four-in-one endotracheal tube of the utility model;
[0021] Figure 3 for Figure 2 An enlarged schematic diagram of section A is shown;
[0022] Figure 4 It is a schematic diagram of the structure of the pressure indicating balloon of the utility model;
[0023] Figure 5 It is a partial cross-sectional schematic diagram of the four-in-one endotracheal cannula of the utility model.
[0024] Explanation of the reference numerals: 10. cannula main tube; 11. auxiliary joint; 12. oblique insertion port; 13. glottic suction opening; 14. glottic flushing opening; 20. balloon filling tube; 21. pressure indicating balloon; 22. pressure indicating window; 30. glottic suction tube; 40. glottic flushing tube; 50. conical balloon. DETAILED DESCRIPTION
[0025] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention.
[0026] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0027] In the related art, endotracheal intubation is widely used in clinical practice. There are the following deficiencies in clinical application: 1: The current occlusion balloon is cylindrical. After being inflated, the balloon of this shape will compress a longer section of the tracheal inner wall, resulting in compression of the mucosa of a longer section of the tracheal inner wall. And the balloon of this shape has many wrinkles in the contracted state, which affects the insertion of the endotracheal intubation. 2: Studies have found that when the pressure between the cuff and the tracheal wall exceeds the perfusion pressure of the tracheal mucosal capillaries (20-30 mmHg), ischemic damage occurs to the tracheal mucosa. Long-term over-inflation of the cuff can also cause edema necrosis, ulcer formation, necrosis of the tracheal cartilage, fibrosis and (or) tracheal collapse of the tracheal mucosa compressed by the cuff, followed by tracheal stenosis. Airway stenosis is harmful and difficult to treat. There are three methods for detecting the cuff filling pressure: (1) Finger touch method: Use your finger to touch the elasticity of the indicator cuff like the tip of the nose to indirectly judge the cuff filling pressure. This is most commonly used during emergency endotracheal intubation. This method is highly subjective and often causes over-inflation of the cuff. (2) The cuff pressure gauge is reliable and accurate in detecting the cuff filling pressure. However, manual measurement cannot effectively control the cuff pressure, and connecting and disconnecting the pressure measuring tube will cause the cuff to leak. Therefore, when using a cuff pressure gauge to set the cuff filling pressure, it is often higher than the target value. (3) The automatic inflation pump continuous pressure measurement method or the continuous cuff pressure monitoring system has great advantages in continuously monitoring the cuff pressure and stabilizing the cuff pressure, but it is expensive and difficult to popularize in clinical practice.
[0028] In view of this, the present embodiment provides a four-in-one endotracheal tube, which can effectively prevent the conical balloon 50 from excessively compressing the tracheal mucosa. The secretions on the conical balloon 50 can be sucked out through the glottic suction tube 30; and the pressure value in the conical balloon 50 can be estimated more accurately.
[0029] See also Figures 1 to 4 The present embodiment provides a four-in-one endotracheal cannula, comprising a cannula main tube 10, a balloon filling tube 20, a glottis suction tube 30, a glottis washing tube 40, and a conical balloon 50. The balloon filling tube 20, the glottis suction tube 30, and the glottis washing tube 40 are respectively placed inside the cannula main tube 10; one end of the cannula main tube 10 is connected to an auxiliary joint 11, and the other end of the cannula main tube 10 is provided with an oblique socket 12; the conical balloon 50 is fixedly sleeved on the outer peripheral wall of one end of the cannula main tube 10 close to the oblique socket 12, and the end of the conical balloon 50 with a smaller diameter is close to the oblique socket 12, and one end of the balloon filling tube 20 penetrates the cannula main tube Tube 10 is connected with the conical balloon 50, the other end of the balloon filling tube 20 passes through the cannula main tube 10 and extends to the outside, and the cannula main tube 10 is provided with a glottis suction opening 13 and a glottis flushing port on the side wall of the end with a larger diameter near the conical balloon 50; one end of the glottis suction tube 30 passes through the cannula main tube 10 and is connected with the glottis suction opening 13, and the other end of the glottis suction tube 30 passes through the cannula main tube 10 and extends to the outside; one end of the glottis flushing tube 40 passes through the cannula main tube 10 and is connected with the glottis flushing port, and the other end of the glottis flushing tube 40 passes through the cannula main tube 10 and extends to the outside.
[0030] Optionally, one end of the balloon filling tube 20 extending out of the cannula main tube 10 is located on one side of the auxiliary joint 11, one end of the glottic suction tube 30 extending out of the cannula main tube 10 is located on one side of the auxiliary joint 11, and one end of the glottic flushing tube 40 extending out of the cannula main tube 10 is located on one side of the auxiliary joint 11.
[0031] In other words, the intubation main tube 10 of the present embodiment has one end of the auxiliary joint 11 as the input end, and one end of the balloon filling tube 20, the glottis suction tube 30, and the glottis flushing tube 40 respectively extend out of the side wall of the intubation main tube 10 and are as close to the auxiliary joint 11 as possible. In this way, when in use, the end of the intubation main tube 10 provided with the oblique socket 12 is extended into the trachea, and the auxiliary joint 11, the balloon filling tube 20, the glottis suction tube 30, and the glottis flushing tube 40 can be exposed to facilitate the operation of each component.
[0032] Optionally, the end of the balloon filling tube 20 extending from the cannula main tube 10 is connected to a pressure indicating balloon 21, and a plurality of circular pressure indicating windows 22 are spaced apart on the side wall of the pressure indicating balloon 21. Among them, three circular pressure indicating windows 22 are spaced apart on the side wall of the pressure indicating balloon 21, each of the pressure indicating windows 22 is composed of a thin film structure, and the film thickness of each pressure indicating window 22 is not equal.
[0033] like Figure 4 As shown, the conical balloon 50 of this embodiment is a folded structure, in which a through hole is provided in the middle of the conical balloon 50 along the axial direction, and the conical balloon 50 is folded inwardly in the middle of both ends and adhered to the outer wall of the cannula main tube 10 through the folded part, so that the connection between the conical balloon 50 and the cannula main tube 10 is more convenient and reliable.
[0034] Optionally, the glottis suction opening 13 is located between the glottis flushing port and the conical balloon 50. Furthermore, the distance between the glottis suction opening 13 and the conical balloon 50 is 5 mm to 15 mm. In addition, a through hole is formed through the side wall of the oblique insertion port 12.
[0035] Compared with the conventional technology, the utility model connects one end of the cannula main tube 10 to the respiratory assistance device, or directly opens it, and inserts the other end with the conical balloon 50 into the trachea, and the gas mainly enters and exits the respiratory system through the internal channel of the cannula main tube 10; then the conical balloon 50 is inflated through the balloon filling tube 20 to fill the conical balloon 50, thereby achieving the effect of blocking the trachea, and only the outer side of the conical balloon 50 with a larger diameter will be embedded in the trachea and contact the tracheal mucosa, while the rest of the conical balloon 50 will not contact the tracheal mucosa, thereby avoiding excessive compression of the tracheal mucosa by the conical balloon 50. Furthermore, through the conical design, there are fewer wrinkles when the conical balloon 50 is in the contracted state, which is convenient for breathing. The intubation main tube 10 is inserted into the trachea; in addition, the utility model can extract the glottis suction opening 13 through the glottis suction tube 30, and then can suck out the secretions on the conical balloon 50; in addition, the utility model can more accurately estimate the pressure value in the conical balloon 50 by observing the bulging degree and number of the three pressure indicating windows 22 on the pressure indicating balloon 21; in addition, the utility model embeds the balloon filling tube 20, the glottis suction tube 30, and the glottis flushing tube 40 into the intubation main tube 10, thereby greatly reducing the interference of the balloon filling tube 20, the glottis suction tube 30, and the glottis flushing tube 40 on the tracheal mucosa, so as to avoid the adverse situation that the user's tracheal mucosa is irritated due to too many tubes.
[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model four-in-one endotracheal tube. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A four-in-one endotracheal tube, characterized in that: It includes an intubation main tube, a balloon filling tube, a glottis suction tube, a glottis flushing tube, and a conical balloon. The balloon filling tube, the glottis suction tube, and the glottis flushing tube are respectively placed inside the intubation main tube; one end of the intubation main tube is connected to an auxiliary joint, and the other end of the intubation main tube is provided with an oblique socket; The conical balloon fixing sleeve is arranged on the outer peripheral wall of one end of the cannula main tube close to the oblique insertion port, and the end of the conical balloon with a smaller diameter is close to the oblique insertion port, one end of the balloon filling tube passes through the cannula main tube and is connected with the conical balloon, and the other end of the balloon filling tube passes through the cannula main tube and extends out, and the cannula main tube is provided with a glottal suction opening and a glottal flushing port at intervals on the side wall of the cannula main tube close to the end with a larger diameter of the conical balloon; One end of the glottis suction tube passes through the main cannula tube and is connected to the glottis suction opening, and the other end of the glottis suction tube passes through the main cannula tube and extends to the outside; one end of the glottis flushing tube passes through the main cannula tube and is connected to the glottis flushing port, and the other end of the glottis flushing tube passes through the main cannula tube and extends to the outside.
2. The four-in-one endotracheal tube according to claim 1, characterized in that: One end of the balloon filling tube extending from the cannula main tube is located on one side of the auxiliary joint, one end of the glottis suction tube extending from the cannula main tube is located on one side of the auxiliary joint, and one end of the glottis flushing tube extending from the cannula main tube is located on one side of the auxiliary joint.
3. The four-in-one endotracheal tube according to claim 1, characterized in that: One end of the balloon filling tube extending out of the cannula main tube is connected to a pressure indicating balloon, and a plurality of circular pressure indicating windows are spaced apart on the side wall of the pressure indicating balloon.
4. The four-in-one endotracheal tube according to claim 3, characterized in that: The side wall of the pressure indicating balloon is provided with three circular pressure indicating windows at intervals, each of which is formed of a thin film structure, and the film thickness of each pressure indicating window is not equal.
5. The four-in-one endotracheal tube according to claim 1, characterized in that: The glottic suction opening is located between the glottic flushing port and the tapered balloon.
6. The four-in-one endotracheal tube according to claim 1, characterized in that: The distance between the glottis suction opening and the conical balloon is 5 mm to 15 mm.
7. The four-in-one endotracheal tube according to claim 1, characterized in that: A through hole is formed through the side wall of the oblique insertion opening.
8. The four-in-one endotracheal tube according to claim 1, characterized in that: The conical balloon is adhered and fixed on the cannula main pipe.