Pressure regulation and control device of stress light-emitting type trachea cannula cuff

Abstract

The utility model relates to the technical field of medical instruments, in particular to a pressure regulation and control device of a stress light-emitting type trachea cannula cuff, which comprises a stress light-emitting cuff arranged on a cannula body, and the stress light-emitting cuff is provided with a common outer layer structure and a stress light-emitting inner layer structure. Comprising photoelectric couplers which are uniformly arranged along the circumference of the outer wall of the center of the tube body where the interior of the stress light-emitting cuff is located; comprising an inflation and deflation chip control element, a data processing comparative analysis module, a data visualization module, an inflation module, a deflation module and a sound-light alarm module. The trachea cannula cuff is improved into a stress luminous cuff structure, and the photoelectric coupler which is arranged on the outer wall of the cannula body and is not attached to the cuff is used for collecting optical signals generated by the stress luminous cuff, so that the pressure of the cuff is monitored in real time; by means of the structure, negative effects caused by the fact that a contact type device is arranged on the cuff body can be directly avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a pressure regulation device for a stress-illuminated endotracheal intubation cuff. Background Technology

[0002] Endotracheal intubation is an artificial airway created when a patient is unable to breathe independently or requires respiratory anesthesia during surgery. During use, the endotracheal tube is inserted through the nose or mouth to a predetermined depth. A specific volume of gas is injected into the cuff, inflating it and fixing it in place, thus creating a seal between the outer wall of the tube and the tracheal wall.

[0003] After inflation, the cuff of the endotracheal tube seals the gap between the tube and the tracheal wall, ensuring accurate tidal volume delivery during mechanical ventilation. However, existing cuffs make it difficult to accurately and directly observe whether the cuff pressure within the patient's body reaches the standard, and the management and adjustment of cuff pressure are not timely enough. According to current guidelines, the cuff pressure should be set at 25-30 cmH2O, while some literature suggests 20-30 cmH2O, both of which are fixed cuff pressures. If the pressure is not up to standard, resulting in overinflation of the cuff, it can lead to tissue ischemia, ulceration, and necrosis of the tracheal wall. Insufficient inflation, on the other hand, causes leakage of gas and oropharyngeal secretions from around the endotracheal tube cuff, making patients prone to hypoventilation, insufficient lung recruitment, and aspiration pneumonia, respectively. Therefore, careful consideration is needed when setting the cuff pressure, and real-time monitoring and timely management and adjustment of the cuff pressure are necessary to ensure the normal operation of the ventilation mode while avoiding air leakage and tracheal damage. Therefore, there is an urgent need in clinical practice for a device that can monitor cuff pressure in real time and adjust the cuff pressure promptly through inflation and deflation.

[0004] Furthermore, existing designs involve placing the sensor on the internal balloon of the endotracheal tube. Whether it's attached to the outside or inside of the balloon, or integrated between multiple layers, the risk of leakage and detachment is unavoidable. Firstly, the balloon's material is smooth, and using resin adhesive or other methods cannot completely guarantee the sensor's fixation. Secondly, the sensor itself has a certain structure, and during manufacturing and balloon inflation, there is a risk of scratching or even puncturing the balloon, reducing product yield and posing significant medical risks. Utility Model Content

[0005] Therefore, the purpose of this utility model is to address the shortcomings of the existing technology by providing a pressure regulation device for a stress-emitting endotracheal intubation cuff.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pressure control device for a stress-emitting endotracheal tube cuff includes a stress-emitting cuff disposed on the tube body, the stress-emitting cuff having a conventional outer layer structure and a stress-emitting inner layer structure; it includes an optocoupler uniformly arranged around the outer wall of the tube body at the center of the stress-emitting cuff; and it includes an inflation / deflation chip control element, which includes a data processing and comparison analysis module, a data visualization module, an inflation module, a deflation module, and an audible and visual alarm module.

[0008] As a further improvement of this utility model, the ordinary outer layer structure and the stress-luminescent inner layer structure are integrally formed.

[0009] As a further improvement of this utility model, the ordinary outer layer structure is an ordinary polymer material layer structure.

[0010] As a further improvement of this utility model, the stress-luminescent inner layer structure is a layer structure containing stress-luminescent material.

[0011] As a further improvement of this utility model, the stress-luminescent material is an elastic stress-luminescent material, including piezoelectric and non-piezoelectric materials doped with rare earth ions and transition metal ions, or self-luminescent materials with intrinsic defects.

[0012] As a further improvement of this utility model, the inflation / deflation chip control element 4 is connected to the stress-emitting luminous sleeve through an inflation / deflation pipeline.

[0013] As a further improvement of this utility model, a connecting line is provided inside the inflation / deflation pipeline, one end of which is connected to the inflation / deflation chip control element, and the other end is connected to the optocoupler through the outer wall of the tube body 5 inside the stress-emitting luminous sleeve.

[0014] As a further improvement of this utility model, the optocoupler is used to detect the luminescence of the sheath body to obtain pressure-induced luminescence imaging data of the sheath. The optocoupler is connected to the data processing and comparison analysis module, which is connected to the data visualization module.

[0015] As a further improvement of this utility model, the data visualization module is connected to the audible and visual alarm module, and the audible and visual alarm module is connected to the inflation module and the deflation module.

[0016] The beneficial effects of this utility model are:

[0017] 1. By adding a stress-emitting luminescent cuff structure to the endotracheal intubation cuff, and using an optocoupler located on the outer wall of the tube body but not attached to the cuff, the light signal generated by the stress-emitting cuff is collected, enabling real-time monitoring of the cuff pressure. This structure directly avoids the negative impacts of placing contact devices on the cuff body. For example, it directly avoids the risks of cuff scratches, ruptures, and component detachment during production, storage, transportation, or use.

[0018] 2. By using the inflation / deflation chip control element to process, compare, and analyze the data collected by the optocoupler, the cuff pressure point can be visualized and dynamically detected in real time. The cuff pressure can also be adjusted in a timely manner through the inflation / deflation module, thus meeting people's requirements for stable control of artificial airway cuff pressure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Appendix Figure 1 This is a schematic diagram of the endotracheal intubation cuff pressure regulation and control system of this utility model.

[0021] Appendix Figure 2 This is a schematic diagram of the endotracheal intubation cannula sheath layer structure of this utility model.

[0022] Appendix Figure 3 This is a control diagram of the gas filling and discharging chip control element module of this utility model.

[0023] In the figure: 1. Double-layered capsule structure; 2. Optocoupler device; 3. Gas filling and discharging pipeline; 4. Gas filling and discharging chip control element; 5. Tube body; 11. Ordinary outer layer structure; 12. Stress-emitting inner layer structure. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] like Figure 1-3 As shown, a pressure regulation and control system for endotracheal intubation cuffs includes:

[0026] A stress-emitting luminescent sheath 1 is disposed on the tube body 5. The stress-emitting luminescent sheath 1 has a conventional outer layer structure 11 and a stress-emitting inner layer structure 12, which are integrally formed. The conventional outer layer structure 11 is a conventional polymer material layer structure. The stress-emitting inner layer structure 12 is a layer structure containing a stress-emitting material. The stress-emitting material is an elastic stress-emitting material, including piezoelectric and non-piezoelectric materials doped with rare earth ions and transition metal ions, or self-emitting materials with intrinsic defects, such as ZnS:Mn 2+ ZnS:Cu 2+ LiGa5O8:Cr 3+ Lu3Al5O 12 Ce 3+ ZnB2O:Mn 2+ Sr3Al2O5Cl2:Ln (Ln=Eu) 2+ , Tb 3+ Ce 3+ ), MgF2:Mn 2+ The relevant materials have already been disclosed in the prior art, and will not be elaborated further here.

[0027] It also includes an optocoupler 2 and an inflation / deflation chip control element 4. The optocoupler 2 is uniformly arranged around the outer wall of the tube body 5 located inside the stress-emitting luminous sleeve 1. The inflation / deflation chip control element 4 includes a data processing comparison and analysis module, a data visualization module, an inflation module, a deflation module, and an audible and visual alarm module.

[0028] In one specific embodiment, the inflation / deflation chip control element 4 is further connected to the stress-emitting light-emitting sleeve 1 via the inflation / deflation pipeline 3. A connecting line is provided inside the inflation / deflation pipeline 3, one end of which is connected to the inflation / deflation chip control element 4, and the other end is connected to the optocoupler 2 via the outer wall of the tube body 5 inside the stress-emitting light-emitting sleeve 1.

[0029] In a specific embodiment, the optocoupler 2 is further used to detect the luminescence of the sheath body to obtain pressure-induced luminescence imaging data of the sheath. The optocoupler 2 is connected to the data processing and comparison analysis module, which is connected to the data visualization module, which is connected to the audible and visual alarm module, which is connected to the inflation module and the deflation module.

[0030] Specifically, such as Figure 3As shown, the pressure-induced luminescent imaging data of the cuff is processed by the A / D data processing and comparison module and the data visualization module. The digital image signal is processed into a visualized contour map and transmitted to the display to show the current air pressure data and pressure distribution. The signal conversion process is: air pressure signal of the cuff → light signal → electrical signal → digital signal. The cuff air pressure range is set by pre-setting parameters and considering actual usage requirements. For example, the pressure range during cuff use is set to be 20-30 cmH2O. When the cuff air pressure value is within the set range, it indicates that the cuff pressure meets the requirements, and inflation / deflation is not necessary. The microcontroller does not issue a command, the solenoid valve does not operate, all air paths are closed, and cuff air pressure monitoring continues. When the cuff air pressure value exceeds the set range, the audible and visual alarm module sounds an alarm, requiring deflation of the cuff. At this time, the microcontroller transmits the set parameter value to the solenoid valve, opening the air path for deflation. Real-time monitoring of the cuff pressure is performed. When the cuff pressure reaches the set parameter range, the microcontroller issues a command to close all air paths, completing the deflation process. When the cuff pressure is below the set range, the audible and visual alarm module will sound an alarm, indicating that the cuff needs to be inflated. At this time, the microcontroller will transmit the set parameter value to the solenoid valve to open the air path for inflation. The cuff pressure is monitored in real time. When the cuff pressure reaches the set parameter range, the microcontroller will issue a command to close all air paths, and inflation will be completed.

[0031] This monitoring method is not limited to direct pressure monitoring; it can also provide feedback by setting the pressure level and area. For example, it can be set that the area of ​​the airbag under pressure exceeding 30 cmH2O should not exceed 30%, and the area under pressure less than 20 cmH2O should not exceed 70%. When the area of ​​the airbag under pressure exceeding 30 cmH2O exceeds 30%, the airbag needs to be deflated; when the area of ​​the airbag under pressure less than 20 cmH2O exceeds 70%, the airbag needs to be inflated.

[0032] The above are the implementation methods of the embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the embodiments of this application, and these improvements and modifications are also considered to be within the protection scope of this application.

Claims

1. A pressure regulating device for a stress-emitting endotracheal intubation cuff, characterized in that, include: A stress-emitting light-emitting sleeve is provided on the tube body, the stress-emitting light-emitting sleeve having a normal outer layer structure and a stress-emitting light-emitting inner layer structure; Optoelectronic coupling devices are uniformly arranged around the outer wall of the tube body located at the center of the stress-emitting luminous sleeve. The inflation / deflation chip control element includes a data processing and comparison analysis module, a data visualization module, an inflation module, a deflation module, and an audible and visual alarm module.

2. The pressure regulating device for the stress-emitting endotracheal intubation cuff according to claim 1, characterized in that, The ordinary outer layer structure and the stress-luminescent inner layer structure are integrally formed.

3. The pressure regulating device for the stress-emitting endotracheal intubation cuff according to claim 2, characterized in that, The ordinary outer layer structure is a common polymer material layer structure.

4. The pressure regulating device for the stress-emitting endotracheal intubation cuff according to claim 2, characterized in that... The stress-luminescent inner layer structure is a layer structure containing stress-luminescent material.

5. The pressure regulating device for the stress-emitting endotracheal intubation cuff according to claim 4, characterized in that, The stress-luminescent material is an elastic stress-luminescent material.

6. The pressure regulating device for the stress-emitting endotracheal cannula cuff according to claim 1, characterized in that, The inflation / deflation chip control element is connected to the stress-emitting luminescent capsule via an inflation / deflation pipeline.

7. The pressure regulating device for the stress-emitting endotracheal intubation cuff according to claim 6, characterized in that, A connecting line is provided inside the inflation / deflation pipeline. One end of the line is connected to the inflation / deflation chip control element, and the other end is connected to the optocoupler through the outer wall of the tube body inside the stress-emitting bladder.

8. The pressure regulating device for the stress-emitting endotracheal intubation cuff according to claim 1, characterized in that, The optocoupler is used to detect the luminescence of the cuff body to obtain pressure-induced luminescence imaging data of the cuff. The optocoupler is connected to the data processing and comparison analysis module, which is connected to the data visualization module.

9. The pressure regulating device for the stress-emitting endotracheal intubation cuff according to claim 8, characterized in that, The data visualization module is connected to the audible and visual alarm module, which in turn is connected to the inflation module and the deflation module.

Images