Adjustable tracheostomy tube and method

Abstract

The invention relates to the technical field of medical instruments and discloses an adjustable tracheostomy cannula and a method. The adjustable tracheostomy cannula comprises an outer cannula, one end of the outer cannula is connected with an air bag, the outer cannula is internally connected with an inner cannula, the outer side of the outer cannula is sleeved with a positioning tube, the positioning tube is connected with a fixing wing, one end of the fixing wing is provided with a connector, and one side of the positioning tube is slidably connected with a semicircular ring; clamping teeth are arranged at the two ends of the semicircular ring, one end of the fixing wing is connected to the semicircular ring, one end of the inner sleeve is connected with an inner threaded pipe, the inner threaded pipe is in threaded connection with an outer threaded pipe, and the outer threaded pipe is connected with a filtering mechanism used for filtering inlet air of the tracheostomy sleeve. Dust and other impurities in air can be filtered through the filter screen structure, the risk of pulmonary infection of a patient is reduced, the connecting structure of the filter screen and the inner sleeve can be easily detached, the filter screen replacement convenience is improved, and discomfort of the patient caused by long-time sleeve structure operation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an adjustable tracheotomy cannula and method. Background Art

[0002] Tracheostomy cannula is a medical device, mainly used to help patients keep their airways open after tracheotomy. It is usually made of metal, plastic and other materials, and is divided into inner cannula, outer cannula and other parts. There are different models and specifications to meet the needs of different patients, which can facilitate suction of sputum, oxygen administration and other operations, and play an important role in ensuring respiratory function and promoting recovery.

[0003] Traditional tracheostomy tubes have serious deficiencies in air filtration. Patients breathe outside air directly through the tracheostomy tube, and impurities such as dust, bacteria, and viruses in the air enter the respiratory tract without effective filtration, greatly increasing the risk of lung infection in patients and seriously affecting the patient's recovery process.

[0004] Secondly, during the suction operation, the existing tracheostomy tube cannot effectively prevent the sputum from flowing back. After the suction operation is completed, the sputum remaining in the tube may slide back to the patient's throat along the tracheostomy tube when the patient breathes or changes position, which may not only cause the patient's airway to be blocked again, causing the risk of suffocation, but also easily cause the bacteria carried in the sputum to spread in the respiratory tract for the second time, aggravating the patient's infection.

[0005] Based on this, an adjustable tracheotomy cannula and method are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an adjustable tracheotomy cannula and method in order to solve the above problems.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: An adjustable tracheotomy cannula comprises an outer sleeve, one end of the outer sleeve is connected to an air bag, the inner sleeve is connected to the outer sleeve, a positioning tube is sleeved on the outer side of the outer sleeve, a fixing wing is connected to the positioning tube, and a connection port is opened at one end of the fixing wing; A semicircular ring is slidably connected to one side of the positioning tube, clamping teeth are provided at both ends of the semicircular ring, one end of the fixed wing is connected to the semicircular ring, one end of the inner sleeve is connected to an internal threaded tube, an external threaded tube is threadedly connected to the internal threaded tube, and a filtering mechanism for filtering the air entering the tracheotomy tube is connected to the external threaded tube.

[0008] Preferably, an abutment rod is threadedly connected to the positioning tube, and one end of the abutment rod is connected to a paddle.

[0009] Preferably, a bottom slide groove is provided on the outer sleeve, and one end of the abutment rod is slidably connected to the bottom slide groove.

[0010] Preferably, an annular groove is provided at one end of the outer sleeve, a card interface is provided on the annular groove, a limiting ring is connected to the outer side of the inner sleeve, a gear ring 1 is rotatably connected to the limiting ring, and a card frame is connected to the gear ring 1.

[0011] Preferably, an articulated frame is connected to the outer side of the positioning tube, the semicircular ring is slidably connected to the articulated frame via a sliding plate, a clamping spring is connected to one side of the sliding plate, and the clamping spring is sleeved on the articulated frame.

[0012] Preferably, the filtering mechanism comprises a filter screen, the filter screen is connected in an externally threaded tube, one end of the externally threaded tube is connected to an abutment tube, and an air inlet is provided on the abutment tube; One end of the external threaded tube is connected with a second gear ring, and the inside of the second gear ring is connected with a dust collecting frame.

[0013] Preferably, a connecting ring is connected inside the inner sleeve, a push spring is connected to one side of the connecting ring, and a sealing disk is connected to one end of the push spring.

[0014] A method for using an adjustable tracheotomy cannula, using an adjustable tracheotomy cannula, comprising the following steps: S1: According to the patient's body shape, adjust the position of the positioning tube connected to the outer sleeve, put the outer sleeve close to the airbag into the patient's throat, and use the fixing wings and laces to connect the outer sleeve to the patient's neck; S2: Connect the external threaded pipe structure to one end of the inner sleeve, and put the inner sleeve into the outer sleeve from one end of the outer sleeve, and fix the inner sleeve on the outer sleeve.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present application adopts a filter structure, which can filter dust and other impurities in the air, thereby reducing the risk of lung infection in patients. The connection structure of the filter and the inner sleeve can be easily disassembled, which improves the convenience of filter replacement and avoids long-term sleeve structure operation causing discomfort to patients.

[0016] 2. The present application adopts a sealing disc structure, which makes the air in the inner sleeve remain unobstructed when the filter mechanism is connected to the inner sleeve. When suction of sputum is required, the filter structure is disassembled to seal one end of the inner sleeve, thereby preventing the sputum in the inner sleeve from flowing back and reducing the risk of infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of a tracheostomy cannula provided in an embodiment of the present invention is shown; Figure 2It shows a schematic structural diagram of the bottom chute opening provided in accordance with an embodiment of the present invention; Figure 3 A schematic diagram of the explosion structure of the semicircular ring connection provided according to an embodiment of the present invention is shown; Figure 4 It shows a schematic structural diagram of a hinged frame connection provided by an embodiment of the present invention; Figure 5 It shows a schematic structural diagram of the location where the annular groove is provided according to an embodiment of the present invention; Figure 6 It shows a schematic structural diagram of a connection portion of a card-joined frame provided in an embodiment of the present invention; Figure 7 A schematic diagram of a half-section structure of an outer sleeve provided in an embodiment of the present invention is shown; Figure 8 A half-section structural schematic diagram of a filtering mechanism provided according to an embodiment of the present invention is shown.

[0018] Legend: 1. Outer sleeve; 2. Inner sleeve; 3. Air bag; 4. Positioning tube; 5. Semicircular ring; 6. Fixed wing; 7. Connecting port; 8. Bottom slide groove; 9. Abutment rod; 10. Pick; 11. Clamping teeth; 12. Slide; 13. Clamping spring; 14. Articulated frame; 15. Ring groove; 16. Card interface; 17. Gear ring 1; 18. Gear ring 2; 19. Limiting ring; 20. Card frame; 21. Externally threaded tube; 22. Abutment tube; 23. Air inlet; 24. Connecting ring; 25. Push spring; 26. Sealing disk; 27. Internally threaded tube; 28. Filter; 29. ​​Dust collection rack. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 8 , the present invention provides a technical solution: An adjustable tracheostomy cannula comprises an outer sleeve 1, one end of which is connected to an air bag 3, which is located at one end of the outer sleeve 1. After being inflated, the air bag 3 can close the gap between the patient's trachea and the cannula, thereby preventing secretions from being accidentally inhaled and avoiding air leakage, thereby ensuring the effectiveness of mechanical ventilation. An inner sleeve 2 is connected to the outer sleeve 1, and the inner sleeve 2 mainly functions to suction sputum and is convenient for structural cleaning and replacement to maintain the cleanliness of the ventilation structure. A positioning tube 4 is sleeved on the outer side of the outer sleeve 1. When the tracheostomy cannula is placed, one side of the positioning tube 4 needs to be close to the patient's neck to ensure the stability of the overall structural connection of the tracheostomy cannula. A fixing wing 6 is connected to the positioning tube 4, and a connecting port 7 is provided at one end of the fixing wing 6. The fixing wing 6 is located on both sides of the cannula, and is used to fix the cannula to the patient's neck. The cannula is fixed to the patient's neck by a lace or other fixing device to prevent the cannula from shifting during use, thereby ensuring its stable position. A semicircular ring 5 is slidably connected to one side of the positioning tube 4, and clamping teeth 11 are provided at both ends of the semicircular ring 5. When the tracheostomy tube is placed, one side of the semicircular ring 5 needs to be placed against the patient's neck. In order to improve the patient's comfort, prevent infection and protect local tissues, a gauze pad needs to be placed between the semicircular ring 5 and the patient's neck. The arc surface of the semicircular ring 5 is close to the patient, which is also to improve the comfort of the patient in fitting the tracheostomy tube. In order to avoid the gauze pad from shifting or falling, the gauze pad is fixed by the clamping teeth 11. One end of the fixed wing 6 is connected to the semicircular ring 5, and one end of the inner tube 2 is connected to an internal threaded tube 27, and the internal threaded tube 27 is threadedly connected to an external threaded tube 21, and the external threaded tube 21 is connected to a filtering mechanism for filtering the air entering the tracheostomy tube.

[0021] Specifically, Figure 3 As shown, the positioning tube 4 is threadedly connected with an abutment rod 9, one end of which is connected with a paddle 10. The abutment rod 9 is abutted against the outside of the positioning tube 4 to fix the connection state between the positioning tube 4 and the outer sleeve 1, thereby avoiding the problem of positioning tube 4 being offset.

[0022] Specifically, Figure 2 As shown, a bottom slide groove 8 is provided on the outer sleeve 1, and one end of the abutment rod 9 is slidably connected to the bottom slide groove 8. The abutment rod 9 structure is limited by setting the bottom slide groove 8 structure, thereby preventing the positioning tube 4 from rotating around the outer sleeve 1.

[0023] Specifically, Figure 5 and Figure 6As shown, an annular groove 15 is provided at one end of the outer sleeve 1, and a card interface 16 is provided on the annular groove 15. A limiting ring 19 is connected to the outer side of the inner sleeve 2. A gear ring 17 is rotatably connected to the limiting ring 19, and a card frame 20 is connected to the gear ring 17. When assembling the inner sleeve 2 and the outer sleeve 1, it is necessary to snap the card frame 20 into the card interface 16, and rotate the gear ring 17 so that one end of the card frame 20 is screwed into the annular groove 15, thereby stabilizing the connection state between the outer sleeve 1 and the inner sleeve 2. On the contrary, when it is necessary to separate the outer sleeve 1 and the inner sleeve 2, it is only necessary to rotate the gear ring 17 so that the card frame 20 is detached from the card interface 16.

[0024] Specifically, Figure 3 and Figure 4 As shown, an articulated frame 14 is connected to the outside of the positioning tube 4. The articulated frame 14 is a structure with a middle rod-shaped structure and two ends connected to the outside of the positioning tube 4 through connecting blocks. The semicircular ring 5 is slidably connected to the articulated frame 14 through a slide 12, wherein the slide 12 is slidably mounted on the rod-shaped structure, and a clamping spring 13 is connected to one side of the slide 12. The clamping spring 13 is mounted on the articulated frame 14, and the other end of the clamping spring 13 is connected to the articulated frame 14. The clamping spring 13 is utilized to stabilize the clamping state of the clamping teeth 11 on the gauze pad, and the stability of the placement of the gauze pad is further improved in combination with a lace.

[0025] Specifically, Figure 7 and Figure 8 As shown, the filtering mechanism includes a filter screen 28, which is connected to the outer threaded tube 21, and one end of the outer threaded tube 21 is connected to the abutting tube 22, and an air inlet 23 is provided on the abutting tube 22. There are multiple air inlets 23, and multiple air inlets 23 are arranged around the abutting tube 22. When the outer threaded tube 21 is connected to the inner threaded tube 27, the abutting tube 22 can push the sealing disk 26 to move, so that the sealing disk 26 is separated from one end of the inner threaded tube 27. At this time, the pushing spring 25 structure is compressed, and the inner sleeve 2 is in a ventilated state at this time; One end of the external threaded tube 21 is connected to a toothed ring 218, and a dust collecting rack 29 is connected inside the toothed ring 21. The toothed ring 218 structure is provided to facilitate the disassembly of the external threaded tube 21 structure, and the dust collecting rack 29 structure can perform preliminary adsorption of impurities. When the tracheostomy tube is assembled, the dust collecting rack 29 is in a moist state due to the effect of the patient's moist exhalation, and this state can improve the adsorption effect of the dust collecting rack 29 structure on impurities.

[0026] Specifically, Figure 7As shown, a connecting ring 24 is connected inside the inner sleeve 2, and a pushing spring 25 is connected to one side of the connecting ring 24. A sealing disk 26 is connected to one end of the pushing spring 25. When the sealing disk 26 is not abutted by the abutting tube 22, the pushing spring 25 can push one side of the sealing disk 26 to abut against one end of the internal threaded tube 27. At this time, the sealing disk 26 can seal the opening at one end of the internal threaded tube 27. In order to improve the sealing effect during abutment, a rubber ring can be connected to one side of the sealing disk 26 to avoid gaps in the abutment. During sputum suction, due to the atmospheric pressure, sputum can be prevented from flowing back from the inner sleeve 2 into the patient's body, thereby improving the sputum suction efficiency and avoiding secondary infection.

[0027] To sum up, the adjustable tracheostomy cannula and method provided in this embodiment need to be evaluated according to the patient's condition when in use, and the necessity and feasibility of tracheotomy are determined. Then, according to the patient's body shape and the depth to which the cannula needs to be inserted, the position of the positioning tube 4 connected to the outer cannula 1 is adjusted, and then the paddle 10 is pulled, the abutment rod 9 is rotated, and one end of the abutment rod 9 is abutted against the bottom slide groove 8, thereby completing the fixation of the positioning tube 4 structure.

[0028] Then, the elastic force of the clamping spring 13 is overcome to separate the two semicircular rings 5 ​​from each other, and the gauze pad structure is clamped by the clamping teeth 11 at both ends of the semicircular rings 5. The fixed wings 6 are symmetrically placed on both sides of the patient's neck, and a lace is connected to the connecting port 7 at one end of the fixed wings 6 to fix the lace to the skin of the patient's neck, thereby completing the insertion operation of the outer sleeve 1 structure.

[0029] Then, the external threaded tube 21 is threadedly connected to the internal threaded tube 27 at one end of the inner sleeve 2, the sealing disk 26 is pushed open by the abutting tube 22, and the end of the inner sleeve 2 away from the gear ring 2 18 is inserted into the outer sleeve 1, and the gear ring 17 rotatably connected to the outside of the inner sleeve 2 is rotated to ensure that the clamping frame 20 connected to one side of the gear ring 17 is clamped into the clamping interface 16, and then the gear ring 17 is rotated 180° to ensure that the clamping frame 20 and the ring groove 15 are not easily separated, thereby completing the installation of the overall structure of the tracheotomy sleeve.

[0030] When the tracheostomy cannula is used, the inner cannula 2 needs to be regularly cared for. During the care, the clamping frame 20 is disassembled to separate the inner cannula 2 from the outer cannula 1, and then the filter mechanism is disassembled from the inner cannula 2 to be cared for separately. At the same time, the outer cannula 1 of the patient needs to be replaced with a new set of inner cannula 2 structure to reduce the risk of infection. When suction operation is needed, the patient's sputum can be assisted to be sucked into the inner sleeve 2, and then the filter mechanism can be unscrewed to close one end of the inner sleeve 2. The inner sleeve 2 is then removed, and the removed structure is cleaned and cared for separately. Since the pipeline is in a closed state when the inner sleeve 2 is removed, the patient is required to use the mouth and nose for a short time to perform assisted breathing to avoid affecting the patient's airway patency.

[0031] The positioning tube 4 and the semicircular ring 5 in the tracheostomy tube are both adjustable and can be adjusted according to the patient's condition. Together with the filtering mechanism and the sealing disk 26, the air can be filtered to prevent dust, bacteria, viruses and other impurities in the air from entering the respiratory tract without effective filtration, thereby reducing the risk of lung infection in patients and improving the patient's recovery process. Whether one end of the adjustable inner tube 2 is closed or not can achieve efficient sputum suction or keep the patient's airway unobstructed, thereby improving ease of use.

[0032] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable tracheostomy cannula, comprising an outer cannula (1), characterized in that: One end of the outer sleeve (1) is connected to an air bag (3), the inner sleeve (2) is connected to the inner sleeve (1), a positioning tube (4) is sleeved on the outer side of the outer sleeve (1), a fixing wing (6) is connected to the positioning tube (4), and a connecting port (7) is formed at one end of the fixing wing (6); A semicircular ring (5) is slidably connected to one side of the positioning tube (4), and clamping teeth (11) are provided at both ends of the semicircular ring (5). One end of the fixing wing (6) is connected to the semicircular ring (5), and one end of the inner sleeve (2) is connected to an internal threaded tube (27), and an external threaded tube (21) is threadedly connected to the internal threaded tube (27), and a filtering mechanism for filtering air entering the tracheotomy tube is connected to the external threaded tube (21).

2. The adjustable tracheostomy cannula according to claim 1, characterized in that: The positioning tube (4) is threadedly connected to an abutment rod (9), and one end of the abutment rod (9) is connected to a paddle (10).

3. The adjustable tracheotomy cannula according to claim 2, characterized in that: The outer sleeve (1) is provided with a bottom slide groove (8), and one end of the abutment rod (9) is slidably connected to the bottom slide groove (8).

4. The adjustable tracheostomy cannula according to claim 1, characterized in that: An annular groove (15) is formed at one end of the outer sleeve (1), a clamping interface (16) is formed on the annular groove (15), a limit ring (19) is connected to the outer side of the inner sleeve (2), a gear ring (17) is rotatably connected to the limit ring (19), and a clamping frame (20) is connected to the gear ring (17).

5. The adjustable tracheostomy cannula according to claim 1, characterized in that: The outer side of the positioning tube (4) is connected to a hinge frame (14), the semicircular ring (5) is slidably connected to the hinge frame (14) via a sliding plate (12), one side of the sliding plate (12) is connected to a clamping spring (13), and the clamping spring (13) is sleeved on the hinge frame (14).

6. The adjustable tracheostomy cannula according to claim 1, characterized in that: The filtering mechanism comprises a filter screen (28), the filter screen (28) being connected inside an externally threaded tube (21), one end of the externally threaded tube (21) being connected to an abutment tube (22), and an air inlet (23) being provided on the abutment tube (22); One end of the externally threaded tube (21) is connected to a second gear ring (18), and the inside of the second gear ring (18) is connected to a dust collecting frame (29).

7. The adjustable tracheotomy cannula according to claim 6, characterized in that: A connecting ring (24) is connected inside the inner sleeve (2), a push spring (25) is connected to one side of the connecting ring (24), and a sealing disk (26) is connected to one end of the push spring (25).

8. A method for using an adjustable tracheotomy cannula, using the adjustable tracheotomy cannula according to claim 1, characterized in that: The following steps are involved: S1: According to the patient's body shape, adjust the position of the positioning tube (4) connected to the outer sleeve (1), place the outer sleeve (1) close to the air bag (3) into the patient's throat, and use the fixing wing (6) and the lace to connect the outer sleeve (1) to the patient's neck; S2: Connect the external threaded tube (21) structure to one end of the inner sleeve (2), insert the inner sleeve (2) into the outer sleeve (1) from one end of the outer sleeve (1), and fix the inner sleeve (2) on the outer sleeve (1).

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