Tracheostomy tube

Abstract

The tracheostomy tube comprises a four-cavity pipeline and a conical balloon, the four-cavity pipeline comprises a main tube cavity, one end of the main tube cavity is connected with a subglottic suction tube cavity, and the subglottic suction tube cavity is connected with an oxygen and / or humidification tube cavity. The side wall of the other end of the main pipe cavity is communicated with a balloon filling port, a subglottic suction port and an oxygen and / or humidification port. The conical balloon is fixedly arranged on the peripheral wall of the subglottic suction tube cavity in a sleeving manner, and the balloon filling port is communicated with the conical balloon; the subglottic suction port is communicated with the subglottic suction tube cavity, and the oxygen and / or humidification port is communicated with the oxygen and / or humidification tube cavity. The tracheostomy tube can effectively prevent the conical balloon from excessively compressing the tracheal mucosa, and secretions on the conical balloon can be sucked out through the opening of the subglottic suction tube; and the pressure value in the conical balloon can be accurately estimated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a tracheotomy cannula. Background Art

[0002] Tracheotomy is a common surgery to relieve dyspnea caused by laryngeal dyspnea, respiratory dysfunction or lower respiratory tract secretion retention. It can keep the patient's airway open, improve dyspnea caused by various reasons, and correct the patient's hypoxia. Tracheotomy tube is an artificial airway used after the patient's tracheotomy; tracheotomy tube is widely used in clinical practice, but has the following shortcomings in clinical application:

[0003] 1. After the tracheotomy cannula, it is often necessary to place an oxygen pipeline and / or a humidification pipeline in the tracheotomy cannula to assist the patient in breathing and humidification of the airway. The tracheotomy cannula widely used at present is mostly inserted into the tracheotomy cannula from the upper end interface of the tracheotomy cannula when oxygen or humidification liquid is input for the patient, and then the oxygen pipeline or the humidification pipeline is wound and fixed on the outer wall of the upper end interface of the tracheotomy cannula or other exposed parts of the cannula with medical adhesive tape, so as to ensure the continuous supply of oxygen and humidification liquid and prevent the respiratory tract from being blocked due to sputum drying. If the medical adhesive tape is firmly fixed, and the medical adhesive tape needs to be torn off each time the oxygen pipeline or the humidification pipeline is changed, it is very easy to make the tracheotomy cannula twist and stimulate the patient to cause coughing or even tube removal in the process of tearing off the adhesive tape. This approach not only makes the patient feel uncomfortable, but also brings inconvenience to life and medical care, and threatens the patient's life safety when serious.

[0004] 2. The current occlusion balloon is cylindrical. When 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 when it is deflated, which affects the insertion of the tracheotomy tube.

[0005] 3. 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 be damaged by ischemia. Long-term over-inflation of the cuff can also cause edema and necrosis of the tracheal mucosa compressed by the cuff, ulceration, necrosis of the tracheal cartilage, fibrosis and (or) tracheal collapse, and then tracheal stenosis. Airway stenosis is harmful and difficult to treat. There are three methods for detecting cuff filling pressure: (1) Finger touch method: Use a finger to touch the elasticity of the cuff like the tip of the nose to indirectly judge the cuff filling pressure. This method is most commonly used during emergency tracheal 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 the cuff will leak when connecting and disconnecting the pressure measuring tube. 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.

[0006] 4. The section from the subglottis to the endotracheal tube cuff produces a lot of secretions that are difficult to suck out, forming a potential source of infection. Utility Model Content

[0007] Based on this, the purpose of the utility model is to provide a tracheotomy tube to overcome one of the technical problems existing in the existing tracheotomy tubes.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A tracheotomy cannula comprises a four-lumen pipeline, a tapered balloon, and a fixing band, wherein the four-lumen pipeline comprises a main lumen, one end of the main lumen is connected to a subglottic suction lumen, the subglottic suction lumen is connected to an oxygen and / or humidification lumen, and the other end of the main lumen is connected to a balloon filling port, a subglottic suction port, and an oxygen and / or humidification port on a side wall thereof; the tapered balloon fixing sleeve is arranged on the peripheral wall of the subglottic suction lumen, the balloon filling port is connected to the tapered balloon; the subglottic suction port is connected to the subglottic suction lumen, and the oxygen and / or humidification port is connected to the oxygen and / or humidification lumen; the fixing band is sleeved on the peripheral wall of the main lumen, and the fixing band is used to fix the balloon filling port, the subglottic suction port, and the oxygen and / or humidification port.

[0010] As an embodiment, a subglottic suction tube opening is penetrated through the outer wall of the subglottic suction tube cavity, and the subglottic suction tube opening is located on one side of the conical balloon.

[0011] As an embodiment, the end of the conical balloon with a larger outer diameter is close to the opening of the subglottic suction tube.

[0012] As an embodiment, the subglottic suction port is connected to a subglottic suction tube, and the subglottic suction tube is connected to the subglottic suction lumen.

[0013] As an embodiment, the oxygen and / or humidification port is connected to an oxygen and / or humidification pipeline, and the oxygen and / or humidification pipeline is connected to the oxygen and / or humidification lumen.

[0014] As an embodiment, the balloon filling port is connected to a balloon filling pipe, and the balloon filling pipe is connected to the conical balloon.

[0015] As an implementation manner, a pressure indicating balloon is connected to the balloon filling conduit, and three circular pressure indicating windows are spaced apart on the side wall of the pressure indicating balloon.

[0016] As an implementation manner, the fixing belt is a strip structure, and a fixing hole is opened on the fixing belt.

[0017] Compared with the traditional technology, the beneficial effects of the tracheotomy tube described in the utility model are:

[0018] The utility model connects one end of the main cavity to a respiratory assistance device, or directly opens it, and inserts the other end with a tapered balloon into the trachea, so that gas mainly enters and exits the respiratory system through the main cavity; then the tapered balloon is inflated through the balloon filling port 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 wedge into 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 through the tapered design, When the conical balloon is in the contracted state, there are fewer wrinkles, which facilitates the insertion of the tracheotomy tube into the trachea; furthermore, one end of the subglottic suction lumen is connected to the subglottic suction port, and one end is opened to the outer wall of the subglottic suction lumen on one side of the conical balloon. In this way, the subglottic suction port can suck out the secretions on the conical balloon through the subglottic suction tube opening on the subglottic suction lumen; 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.

[0019] 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

[0020] Figure 1 It is a structural schematic diagram of a tracheotomy tube of the utility model;

[0021] Figure 2 It is a partial end view of the tracheotomy tube of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the pressure indicating balloon of the utility model;

[0023] Figure 4 It is a partially cutaway schematic diagram of the tracheotomy tube of the utility model;

[0024] Figure 5 This is a reference diagram for comparing the use of the conical balloon of the utility model with that of a traditional balloon.

[0025] Description of reference numerals:

[0026] 10. Four-lumen tube; 11. Main lumen; 12. Subglottic suction lumen; 13. Oxygen and / or humidification lumen; 14. Balloon filling port; 15. Subglottic suction port; 16. Oxygen and / or humidification port; 17. Subglottic suction tube opening; 18. Pressure indicating balloon; 19. Pressure indicating window; 20. Conical balloon; 30. Fixation strap. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] See also Figures 1 to 5; This embodiment provides a tracheotomy tube, including a four-lumen tube 10 and a conical balloon 20. The four-lumen tube 10 includes a main lumen 11, one end of the main lumen 11 is connected to a subglottic suction lumen 12, the subglottic suction lumen 12 is connected to an oxygen and / or humidification lumen 13, and the other end of the main lumen 11 is connected to a balloon filling port 14, a subglottic suction port 15, and an oxygen and / or humidification port 16 on the side wall; the conical balloon 20 is fixedly sleeved on the outer peripheral wall of the subglottic suction lumen 12, the balloon filling port 14 is connected to the conical balloon 20; the subglottic suction port 15 is connected to the subglottic suction lumen 12, and the oxygen and / or humidification port 16 is connected to the oxygen and / or humidification lumen 13.

[0030] Among them, the subglottic suction port 15 is connected to a subglottic suction pipe, and the subglottic suction pipe is connected to the subglottic suction lumen 12; the oxygen and / or humidification port 16 is connected to an oxygen and / or humidification pipe, and the oxygen and / or humidification pipe is connected to the oxygen and / or humidification lumen 13; the balloon filling port 14 is connected to a balloon filling pipe, and the balloon filling pipe is connected to the conical balloon 20.

[0031] In order to better define the balloon filling port 14, the subglottic suction port 15, and the oxygen and / or humidification port 16, the present embodiment further includes a fixing belt 30, which is sleeved on the outer peripheral wall of the main cavity 11 and is used to fix the balloon filling port 14, the subglottic suction port 15, and the oxygen and / or humidification port 16. Further, the fixing belt 30 is a strip structure, and a fixing hole is opened on the fixing belt 30.

[0032] Optionally, a subglottic suction tube opening 17 is provided through the outer wall of the subglottic suction tube cavity 12 of this embodiment, and the subglottic suction tube opening 17 is located on one side of the conical balloon 20. In addition, the end of the conical balloon 20 with a larger outer diameter is close to the subglottic suction tube opening 17.

[0033] like Figure 4 As shown, the conical balloon 20 of this embodiment is an overlapped structure, in which a through hole is provided in the middle part of the conical balloon 20 along the axial direction, and the conical balloon 20 is overlapped inwardly in the middle part of both ends and is adhered to the outer wall of the subglottic suction lumen 12 through the overlapped part, so that the connection between the conical balloon 20 and the subglottic suction lumen 12 is more convenient and reliable.

[0034] like Figure 3As shown, the balloon filling channel of this embodiment is connected to a pressure indicating balloon 18, and three circular pressure indicating windows 19 are spaced apart on the side wall of the pressure indicating balloon 18. The three pressure indicating windows 19 are all composed of a film structure, and the film thicknesses of the three pressure indicating windows 19 are all different, so that the bulging pressure values ​​of the three pressure indicating windows 19 are all different, so that the bulging amounts of the pressure indicating windows 19 are displayed differently under different pressures of the pressure indicating balloon 18.

[0035] Compared with the conventional technology, the utility model connects one end of the main cavity 11 to the respiratory assistance device, or directly opens it, and inserts the other end with the conical balloon 20 deep into the main trachea, so that the gas mainly enters and exits the respiratory system through the main cavity 11; then the conical balloon 20 is inflated through the balloon filling port 14 to fill the conical balloon 20, thereby achieving the effect of blocking the trachea, and only the outer side of the conical balloon 20 with a larger diameter will wedge into the trachea and contact the tracheal mucosa, while the rest of the conical balloon 20 will not contact the tracheal mucosa, thereby avoiding excessive compression of the tracheal mucosa by the conical balloon 20, and the conical design In the contracted state of the conical balloon 20, there are fewer wrinkles, which facilitates the insertion of the tracheotomy tube into the trachea; furthermore, one end of the subglottic suction lumen 12 is connected to the subglottic suction port 15, and one end is opened to the outer wall of the subglottic suction lumen 12 on one side of the conical balloon 20. In this way, the subglottic suction port 15 can suck out the secretions on the conical balloon 20 through the subglottic suction tube opening 17 on the subglottic suction lumen 12; in addition, the utility model can more accurately estimate the pressure value in the conical balloon 20 by observing the bulging degree and number of the three pressure indicating windows 19 on the pressure indicating balloon 18.

[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 tracheotomy 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 tracheotomy tube, characterized in that: The invention comprises a four-lumen pipeline, a conical balloon and a fixing belt, wherein the four-lumen pipeline comprises a main lumen, one end of which is connected to a subglottic suction lumen, which is connected to an oxygen and / or humidification lumen, and the other end of the main lumen is connected to a balloon filling port, a subglottic suction port and an oxygen and / or humidification port on a side wall thereof; the conical balloon fixing sleeve is arranged on the outer peripheral wall of the subglottic suction lumen, the balloon filling port is connected to the conical balloon; the subglottic suction port is connected to the subglottic suction lumen, and the oxygen and / or humidification port is connected to the oxygen and / or humidification lumen; the fixing belt is arranged on the outer peripheral wall of the main lumen, and the fixing belt is used to fix the balloon filling port, the subglottic suction port and the oxygen and / or humidification port.

2. The tracheotomy tube according to claim 1, characterized in that: A subglottic suction tube opening is penetrated through the outer wall of the subglottic suction tube cavity, and the subglottic suction tube opening is located on one side of the conical balloon.

3. The tracheotomy tube according to claim 2, characterized in that: The end of the tapered balloon with a larger outer diameter is close to the opening of the subglottic suction tube.

4. The tracheotomy tube according to claim 2, characterized in that: The subglottic suction port is connected with a subglottic suction pipe, and the subglottic suction pipe is connected with the subglottic suction lumen.

5. The tracheotomy tube according to claim 1, characterized in that: The oxygen and / or humidification port is connected to an oxygen and / or humidification pipeline, and the oxygen and / or humidification pipeline is connected to the oxygen and / or humidification lumen.

6. The tracheotomy tube according to claim 1, characterized in that: The balloon filling port is connected to a balloon filling pipe, and the balloon filling pipe is connected to the tapered balloon.

7. The tracheotomy tube according to claim 6, characterized in that: The balloon filling conduit is connected to a pressure indicating balloon, and three circular pressure indicating windows are spaced apart on the side wall of the pressure indicating balloon.

8. The tracheotomy tube according to claim 1, characterized in that: The fixing belt is a strip structure and is provided with fixing holes.

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