Tracheotomy cannula for assisting cough of patient

Abstract

The invention discloses a tracheostomy tube for assisting cough of a patient, and relates to the technical field of medical instruments, the tracheostomy tube comprises a catheter, one end of the catheter inserted into the tracheostomy tube is provided with an inflatable and deflatable air bag, and one end of the catheter located outside the tracheostomy tube is provided with a foldable baffle. And a one-way valve capable of feeding air into the guide pipe is arranged on the guide pipe at the end. According to the device, a patient can be assisted in cough action, a low-resistance release path is provided for high-pressure and high-speed airflow generated in the suffocation stage before cough, the effect that the glottis is suddenly opened due to pressure during natural cough is simulated, and therefore secretions in the trachea and the bronchus are more effectively removed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and more particularly to a tracheotomy tube for assisting a patient in coughing. Background Art

[0002] Tracheostomy tubes are widely used in anesthesia, intensive care, and respiratory failure treatment to establish an artificial airway and ensure ventilation. Patients with respiratory dysfunction, neck structural abnormalities, neurological diseases, and those using ventilators for extended periods of time need to wear them for extended periods. Because the tube remains open, when the patient coughs up sputum in the trachea and lungs, the patient cannot cough up the fluid by closing the epiglottis and then suddenly releasing the pressure. Consequently, ineffective coughing can worsen lung infections.

[0003] In the prior art: Conventional tracheal tube: When coughing is needed, the airflow can only flow upward through the inside of the tube. There is no breath-holding action before coughing and no sudden release of airflow after the glottis opens, resulting in poor sputum removal effect.

[0004] Manually assisted coughing techniques, such as "breath stacking" or "manually assisted coughing," require medical staff to coordinate chest and abdominal compressions with the patient's respiratory cycle. The operation is complex, manpower-dependent, and the results are unstable.

[0005] Mechanical respiratory devices, such as mechanical respiratory assist devices, usually require additional, expensive specialized equipment, are relatively complex to operate, and may not be suitable for all scenarios or patients.

[0006] Therefore, it is necessary to propose a tracheotomy tube for assisting patients in coughing to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the problems raised in the background technology.

[0008] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A tracheotomy tube for assisting a patient in coughing comprises a catheter, one end of the catheter inserted into the tracheal tube being provided with an inflatable airbag, one end of the catheter located outside the tracheal tube being provided with a foldable baffle, and a one-way valve for allowing air to enter the catheter being provided on the catheter at this end.

[0009] Furthermore, the airbag is connected to a connecting tube, and an end of the connecting tube located outside the trachea is fixedly connected to an inflation device.

[0010] Furthermore, one end of the catheter located outside the tracheal tube is fixedly connected to a mounting rod, the baffle is rotatably connected to the mounting rod, the upper end of the baffle is fixedly connected to a magnetic sheet, and the magnetic sheet forms an obtuse angle with the baffle.

[0011] Furthermore, a movable magnet is provided above one end of the magnetic attraction sheet away from the baffle, so that the area of ​​the baffle attracted by the magnet can be adjusted.

[0012] Furthermore, vertical poles are fixedly connected to the conduits on both sides of the magnetic sheet, the upper ends of the vertical poles are fixedly connected to the guide rail frames, and sliders are fixedly connected to both sides of the magnets, and the sliders are slidably connected to the guide rail frames.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can assist patients in coughing, providing a low-resistance release path for the high-pressure, high-speed airflow generated during the breath-holding stage before coughing, simulating the effect of the glottis suddenly opening under pressure during a natural cough, thereby more effectively clearing secretions in the trachea and bronchi.

[0014] 2. The present invention sets an adjustable magnet. Since patients with weak respiratory muscle contraction may need a smaller pressure threshold, the pressure threshold can be adjusted by adjusting the change in the contact area with the magnetic sheet, that is, adjusting the force of the air pressure in the catheter on the baffle.

[0015] 3. The airbag of the present invention continuously seals the airway to prevent accidental aspiration. The baffle and one-way valve are only opened briefly when needed, without affecting the overall sealing of the airway.

[0016] 4. The present invention is easy to disassemble as a whole and can be reused after cleaning and disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main view of the structure of the present invention.

[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention inserted into the trachea.

[0019] Figure 3 It is a three-dimensional schematic diagram of the structure of the present invention.

[0020] Figure 4 It is a simplified schematic diagram of inhalation and coughing when the present invention is used.

[0021] Figure 5 It is a partial cross-sectional schematic diagram of another embodiment of the present invention.

[0022] Figure 6 It is a schematic diagram of a tracheotomy tube in the prior art.

[0023] Figure numerals: 1. catheter; 2. airbag; 3. connecting pipe; 5. inflation device; 6. one-way valve; 7. mounting rod; 8. baffle; 9. magnetic sheet; 10. vertical pole; 11. guide rail frame; 12. magnet; 13. slider. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figures 1 to 4 A tracheotomy tube for assisting a patient in coughing comprises a catheter 1, which is a metal tracheal tube with a length and diameter that conform to standard tracheal tube specifications. The catheter 1 has a smooth inner wall to reduce airflow resistance. An inflatable and deflable airbag 2 is provided at one end of the catheter 1 that is inserted into the tracheal tube. The airbag 2 is made of a high-volume, low-pressure airbag material and is sheathed on the outer wall of the inner end of the catheter. An inflation line extends along the catheter wall to the outer end. A foldable baffle 8 is provided at one end of the catheter 1 outside the tracheal tube. A one-way valve 6 for allowing air to enter the catheter 1 is provided on the catheter 1 at this end. The one-way valve 6 is a one-way air inlet valve, such as an umbrella valve, which is a common miniature valve suitable for use in this application.

[0026] Specifically, the air bag 2 is connected to a connecting tube 3, and the end of the connecting tube 3 outside the tracheal tube is fixedly connected to an inflation device 5. The extrusion inflation device 5 is an inflation device in a tracheotomy tube in the prior art, such as Figure 6 As shown in the structure enclosed by the oval circle, the effect of inflation and deflation is achieved.

[0027] Specifically, one end of the catheter 1 located outside the tracheal cannula is fixedly connected to the mounting rod 7, and the baffle 8 is rotatably connected to the mounting rod 7. The upper end of the baffle 8 is fixedly connected to a magnetic sheet 9, and the magnetic sheet 9 and the baffle 8 form an obtuse angle so that the magnetic sheet 9 can drive the baffle 8 to rotate. When not constrained by the magnetic sheet 9, the baffle 8 can return to a position that fits the end of the catheter 1 under its own action. When the magnet 12 attracts the magnetic sheet 9, it will apply a certain pressure between the baffle 8 and the end of the catheter 1.

[0028] Specifically, a movable magnet 12 is provided above the end of the magnetic sheet 9 away from the baffle 8. When the baffle 8 is in contact with the catheter 1, the magnet 12 is in contact with the magnetic sheet 9 and adsorbed thereon, and the moving direction of the magnet 12 is consistent with the tilt direction of the magnetic sheet 9 at this time, so that the area of ​​the baffle 8 adsorbed by the magnet 12 can be adjusted, thereby adjusting the pressure on the baffle 8.

[0029] Specifically, the catheter 1 on both sides of the magnetic sheet 9 is fixedly connected with a vertical rod 10, the upper end of the vertical rod 10 is fixedly connected with a guide rail frame 11, and sliders 13 are fixedly connected on both sides of the magnet 12. The middle part of the guide rail frame 11 is hollowed out, so that the slider 13 is slidably connected to the guide rail frame 11. There is a certain friction between the guide rail frame 11 and the slider 13. When the slider 13 is manually moved, the slider 13 can slide along the guide rail frame 11 to ensure the stability of the slider 13 after the position is adjusted.

[0030] Working principle: like Figure 2 As shown, if a metal cannula is inserted into the patient's trachea, the integrated tracheal tube of the present application is inserted into the metal cannula to ensure that the airbag 2 passes through the bottom of the metal cannula; Inspiratory phase: When the patient inhales, or the ventilator provides inspiratory airflow, negative pressure or a relatively low pressure is generated within catheter 1. At this point, one-way valve 6 opens, allowing fresh air or gas from the ventilator to pass through one-way valve 6 into catheter 1 and then into the patient's lungs. Baffle 8 remains closed to ensure the flow of gas.

[0031] Cough trigger: The patient coughs actively.

[0032] Cough expiratory phase, airflow exhalation: When coughing, the patient will first take a deep breath, at which time the one-way valve 6 works, and then forcefully exhale. During forceful exhalation, the lungs generate high-speed and high-pressure airflow.

[0033] The pressure inside the duct 1 increases: This high-pressure airflow enters the duct 1, causing the pressure inside the duct 1 to rise sharply. The baffle 8 acts: When the pressure inside the duct 1 increases enough to overcome the resistance of the baffle 8, the high-pressure airflow will push the baffle 8 open.

[0034] Degassing: After the baffle 8 is pushed open, an additional, temporary exhaust port is formed at the proximal end of the catheter 1. Most of the high-pressure airflow and the entrained sputum and other secretions can be quickly discharged to the outside atmosphere through this opened baffle 8 port.

[0035] The baffle 8 is reset: when the pressure wave generated by the cough passes and the internal pressure of the catheter 1 decreases, the baffle 8 will automatically close under the action of its own gravity and the adsorption of the magnet 12, and the closed state of the catheter 1 will be restored.

[0036] One-way valve 6 state: Under the high pressure environment of cough exhalation phase, one-way valve 6 will close, preventing gas from flowing back out of the valve. This forces the air flow to be discharged only through the open baffle 8.

[0037] In addition, the catheter 1 can also be configured as a plug-in type at both ends, such as Figure 5 and Figure 6As shown, when a tracheotomy tube is inserted into the patient's trachea, the other end of the present application is provided with an insertion interface, which can be directly inserted into the tracheotomy tube, that is, Figure 6 The port in the middle is used to connect to the respirator to achieve the connection function.

[0038] In addition, the drawings of this application are for illustrative purposes only and do not limit the size and proportion of the device in this application. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention should also be included in the scope of protection of the present invention.

Claims

1. A tracheotomy tube for assisting a patient in coughing, comprising a catheter, characterized in that: One end of the catheter inserted into the tracheal tube is provided with an inflatable air bag, one end of the catheter located outside the tracheal tube is provided with a foldable baffle, and a one-way valve for air intake into the catheter is provided on the catheter at this end.

2. A tracheotomy tube for assisting a patient in coughing according to claim 1, characterized in that: The air bag is connected with a connecting pipe, and the end of the connecting pipe located outside the trachea is fixedly connected with an inflation device.

3. A tracheotomy tube for assisting a patient in coughing according to claim 1, characterized in that: One end of the catheter located outside the tracheal tube is fixedly connected to a mounting rod, the baffle is rotatably connected to the mounting rod, the upper end of the baffle is fixedly connected to a magnetic sheet, and the magnetic sheet forms an obtuse angle with the baffle.

4. A tracheotomy tube for assisting a patient in coughing according to claim 3, characterized in that: A movable magnet is provided above one end of the magnetic attraction sheet away from the baffle, so that the area of ​​the baffle adsorbed by the magnet can be adjusted.

5. A tracheotomy tube for assisting a patient in coughing according to claim 4, characterized in that: Vertical poles are fixedly connected to the conduits on both sides of the magnetic sheet, the upper ends of the vertical poles are fixedly connected to the guide rail frames, and sliders are fixedly connected to both sides of the magnets, and the sliders are slidably connected to the guide rail frames.

6. A tracheotomy tube for assisting a patient in coughing according to any one of claims 1 to 5, characterized in that: The conduit is arranged in a plug-in manner at both ends.

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