Tracheotomy catheter with high adaptability

Abstract

A tracheotomy catheter high in adaptability comprises a fixing wing and a catheter body, the fixing wing is arranged at the outer end of the catheter body, a bent guide part is rotatably arranged in the inner wall of an inner port of the catheter body, an air bag structure is arranged at the inner end of the catheter body, and the bent guide part is arranged close to the air bag structure. The air bag structure is connected with an inflation device through an inflation tube structure. The tracheotomy catheter is simple in structure, capable of preventing the bent guide portion of the tracheotomy catheter from being blocked by the trachea wall, convenient to use and high in adjustability.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical implant catheters, and particularly relates to a tracheotomy catheter with strong adaptability. Background Art

[0002] In the intensive care unit (ICU), there are often patients who have laryngeal dyspnea, respiratory dysfunction, or dyspnea caused by retention of lower respiratory tract secretions for various reasons. Tracheotomy treatment is required, and a tracheotomy catheter is indwelled to establish an artificial airway, which can help the patient maintain respiration, keep the respiratory tract unobstructed, and ensure the stability of vital signs. Among them, during the clinical application of the tracheotomy catheter, the insertion head end of the tracheotomy catheter needs to have a curved guiding part to facilitate insertion from the incision on the side wall of the trachea and guide it into the trachea. However, the curved guiding part of the tracheotomy catheter is also used to establish an artificial airway in communication with the trachea. Due to the differences in the body types of patients or the positions of the incisions, the curvature of the trachea at the indwelling position of the curved guiding part of the tracheotomy catheter is different. When the bending direction of the curved guiding part is opposite to the bending direction of the trachea, the connecting air holes of the curved guiding part are blocked by the tracheal wall, so a stable artificial airway cannot be established.

[0003] In the prior art, the patent document with the publication number of CN 216319368 U discloses an adjustable human tracheal catheter, which belongs to the technical field of catheter limiting and fixing devices. It includes a tube body, and the catheter is a thin tube; a limiting baffle, with a limiting hole inside the limiting baffle, and the tube body passes through the limiting hole so that the limiting baffle can move along the tube body; a fixing element, which is arranged on the limiting baffle and can limit and fix the limiting baffle to the tube body. The limiting baffle can move along the tube body. After the tube body is inserted into the respiratory tract, the gap between the limiting baffle and the neck can be adjusted according to the actual situation; and then the limiting baffle is limited and fixed to prevent the catheter from slipping out during use. The above solution can adjust the insertion depth of the gas catheter, increasing the adaptability and adjustability of the tracheotomy catheter, but it cannot overcome the technical problem of the curved guiding part being blocked by the tracheal wall, and it can only adjust the insertion depth of the gas catheter before the tracheal catheter is inserted, which has great limitations in clinical use. Summary of the Utility Model

[0004] I. Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a tracheotomy catheter with strong adaptability, which has a simple structure, can avoid the curved guiding part of the tracheotomy catheter being blocked by the tracheal wall, is convenient to use, and has high adjustability.

[0006] II. Specific Technical Solutions

[0007] An adaptable tracheotomy catheter, comprising a fixing wing and a catheter body. The fixing wing is arranged at the outer end of the catheter body. A bending guiding part is rotatably arranged on the inner wall of the inner port of the catheter body. An airbag structure is arranged at the inner end of the catheter body. The bending guiding part is arranged close to the airbag structure, and the airbag structure is connected with an inflation device through an inflation tube structure.

[0008] Preferably: The catheter body comprises an upper catheter and a lower catheter. A telescopic annular groove is formed at the bottom of the upper catheter. A telescopic annular piece is arranged at the top of the lower catheter. The telescopic annular piece is slidably matched in the telescopic annular groove. An injection channel is further arranged in the upper catheter, and the injection channel is communicated with the telescopic annular groove.

[0009] Preferably: The airbag structure comprises a mounting sleeve and an annular airbag. The annular airbag is arranged around the outer wall of the mounting sleeve. One side part of the inner wall of the mounting sleeve is fixedly arranged on the outer wall of the lower catheter.

[0010] Preferably: A sealing rubber ring is arranged between the telescopic annular piece and the telescopic annular groove.

[0011] Preferably: The inflation device is an inflation balloon or an indicating balloon. The inflation tube structure passes through the fixing wing along the outer wall of the catheter body.

[0012] Preferably: An installation ring groove is arranged on the inner wall of the inner port of the catheter body. The bending guiding part has an installation ring part. The installation ring part is rotatably matched with the installation ring groove. An annular limiting clamping groove is arranged in the installation ring groove. Elastic limiting convex platforms are evenly arranged on both side walls of the annular limiting clamping groove. A limiting clamping ring is arranged on the installation ring part. The limiting clamping ring is matched with the annular limiting clamping groove. Limiting groove structures are arranged on both sides of the limiting clamping ring. The limiting groove structures are matched with the elastic limiting convex platforms.

[0013] Preferably: A sealing ring structure is further arranged between the installation ring part and the installation ring groove. Striped structures are evenly arranged on the inner wall of the installation ring part.

[0014] The beneficial effects of the present utility model are as follows: A bending guiding portion is provided at the inner end of the catheter body. When the bending guiding portion can still play a stable guiding and inserting role, by rotating the bending guiding portion after insertion, it can avoid the bending guiding portion of the tracheotomy catheter being blocked by the tracheal wall, and is applicable to patients with different tracheal bending shapes, with strong applicability; the upper catheter and the lower catheter between the catheter bodies can be telescopically slid, which can not only continue to adjust the catheter length after implanting the catheter to avoid repeated adjustment of insertion, is comfortable and convenient to use, and has high adjustability, but also an installation sleeve is provided to cover the telescopic slit between the upper catheter and the lower catheter, and the installation sleeve is fixed to the lower catheter and can drive the airbag structure to move when the lower catheter expands and contracts, so that the position where the airbag structure acts on the tracheal wall can be changed, and the airbag structure will surely be separated from the position of the tracheal wall and will not form adhesions, avoiding long-term compression of the fixed position of the airbag on the tracheal wall, and preventing clinical problems such as tracheal mucosa blood circulation disorder, local ulceration, ischemic necrosis or perforation, and even erosion of the esophagus. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present utility model.

[0016] Figure 2 is a cross-sectional structural schematic diagram of the whole side of the present utility model.

[0017] Figure 3 is a schematic diagram of the cooperation between the upper catheter and the lower catheter of the present utility model.

[0018] Figure 4 is a schematic diagram of the cooperation between the catheter body and the bending guiding portion of the present utility model.

[0019] In the figure: fixed wing 1; catheter body 2; bending guiding portion 3; airbag structure 4; telescopic secretion suction port structure 5; rotating guiding tool 6; inflation tube structure 7; inflation device 8;

[0020] upper catheter 21; lower catheter 22; telescopic annular groove 23; telescopic annular piece 24; injection channel 25; installation ring groove 26; annular limit card slot 27; elastic limit boss 28;

[0021] installation ring portion 31; limit snap ring 32; limit groove structure 33; stripe structure 34; installation sleeve 41; annular airbag 42; fixed pipe 51; telescopic sleeve 52; suction joint 54; torsion soft rod structure 61; clamping head structure 62. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a direct connection or a connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Embodiment:

[0026] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown: A tracheotomy catheter with strong adaptability is provided with a fixing wing 1 and a catheter body 2. The fixing wing 1 is arranged at the outer end of the catheter body 2. A bending guiding part 3 is rotatably arranged on the inner wall of the inner port of the catheter body 2. An airbag structure 4 is arranged at the inner end of the catheter body 2. The bending guiding part 3 is arranged close to the airbag structure 4, and the airbag structure 4 is connected with an inflation device 8 through an inflation tube structure 7. The inflation device 8 is an inflation balloon or an indicating balloon, and the inflation tube structure 7 passes through the fixing wing 1 along the outer wall of the catheter body 2.

[0027] Among them, the catheter body 2 includes an upper catheter 21 and a lower catheter 22. A telescopic annular groove 23 is opened at the bottom of the upper catheter 21, and a telescopic annular piece 24 is arranged at the top of the lower catheter 22. The telescopic annular piece 24 is slidably matched in the telescopic annular groove 23. A sealing rubber ring is arranged between the telescopic annular piece 24 and the telescopic annular groove 23. An injection channel 25 is also arranged in the upper catheter 21. The injection channel 25 is communicated with the above-mentioned telescopic annular groove 23. Injecting liquids such as water or gases such as air into the injection channel 25 can control the telescopic of the catheter body 2. The port of the injection channel 25 needs to be sealed or provided with a one-way valve.

[0028] The above-mentioned airbag structure 4 is composed of an installation sleeve 41 and an annular airbag 42. The annular airbag 42 is arranged around the outer wall of the installation sleeve 41. One side of the inner wall of the installation sleeve 41 is fixedly arranged on the outer wall of the lower catheter 22. The installation sleeve 41 can cover the telescopic joint opening between the upper catheter 21 and the lower catheter 22. And the installation sleeve 41 is fixed to the lower catheter 22 and can drive the airbag structure 4 to move when the lower catheter 22 expands and contracts, so that the position of the airbag structure acting on the tracheal wall can be changed. Moreover, the airbag structure will surely be separated from the position of the tracheal wall and will not form adhesions, avoiding long-term compression of the fixed position of the airbag on the tracheal wall, and preventing clinical problems such as tracheal mucosal blood circulation disorder, local ulceration, ischemic necrosis or perforation, and even erosion of the esophagus.

[0029] A telescopic secretion suction nozzle structure 5 is connected to the upper side of the installation sleeve 41. Among them, the telescopic secretion suction nozzle structure 5 includes a fixed pipe 51, a telescopic sleeve 52 and a suction joint 54. The fixed pipe 51 is fixedly arranged on the outer wall of the catheter body 2, and the fixed pipe 51 is arranged between the moving limit annular groove part 21 and the fixed wing 1. One end of the outer wall of the telescopic sleeve 52 is slidably matched with the inner wall of the fixed pipe 51. The suction joint 54 is connected to the fixed pipe 51 through a hose; the other end of the telescopic sleeve 52 is connected to the installation sleeve 41, and a suction opening is also arranged at the other end of the telescopic sleeve 52. The suction opening is arranged close to the installation sleeve 41. Among them, the fixed pipe 51 is integrally formed with the outer wall of the catheter body 2. A leakage-proof sealing ring is arranged between the outer wall of the telescopic sleeve 52 and the inner wall of the fixed pipe 51. The telescopic secretion suction nozzle structure 5 expands and contracts following the movement of the installation sleeve 41, which is beneficial to completely extracting and discharging the upper respiratory tract secretions.

[0030] An installation ring groove 26 is arranged on the inner wall of the inner port of the catheter body 2. The bending guide part 3 has an installation ring part 31. The installation ring part 31 is rotationally matched with the installation ring groove 26. And an annular limit card slot 27 is arranged in the installation ring groove 26. Elastic limit bosses 28 are evenly arranged around the two side walls of the annular limit card slot 27. A limit clamping ring 32 is arranged on the installation ring part 31. The limit clamping ring 32 is matched with the annular limit card slot 27. And limit groove structures 33 are arranged on both sides of the limit clamping ring 32. The limit groove structures 33 are matched with the elastic limit bosses 28.

[0031] A sealing ring structure is also arranged between the installation ring part 31 and the installation ring groove 26. Striped structures 34 are evenly arranged on the inner wall of the installation ring part 31. The height of the striped structures 34 gradually increases from one end close to the catheter body 2 to the other end, and forms a conical shape in a circular arrangement.

[0032] It further includes a rotation guiding tool 6 for controlling the rotation of the bending guiding part. The rotation guiding tool 6 is composed of a torsion soft rod structure 61 and a clamping head structure 62. The clamping head structure 62 is arranged at one end of the torsion soft rod structure 61. Insert the clamping head structure 62 into the inner cavity of the catheter body 2 to the position of the mounting ring part 31, and then clamp the inner wall of the mounting ring part 31 through the clamping head structure 62. The clamping head structure 62 is a rubber head with a diameter that is in an interference fit with the inner wall of the mounting ring part 31, and friction clamping is directly achieved during the insertion into the tapered stripe structure 34. The clamping head structure 62 can also be a small three-jaw chuck structure that can open and clamp the inner wall of the mounting ring part 31. Finally, drive the bending guiding part 3 to rotate through the torsion soft rod structure 61. A limiting groove structure 33 is provided to cooperate with the elastic limiting boss 28, so that the non-rotating bending guiding part 3 can be fixed in position and will not rotate randomly.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An adaptable tracheotomy catheter, comprising a fixing wing (1) and a catheter body (2), wherein the fixing wing (1) is arranged at the outer end of the catheter body (2), and is characterized in that: A bending guide part (3) is rotatably arranged on the inner wall of the inner port of the catheter body (2). An airbag structure (4) is arranged at the inner end of the catheter body (2). The bending guide part (3) is arranged close to the airbag structure (4), and the airbag structure (4) is connected with an inflation device (8) through an inflation tube structure (7).

2. The adaptable tracheotomy catheter according to claim 1, wherein: The catheter body (2) includes an upper catheter (21) and a lower catheter (22). An expansion annular groove (23) is formed at the bottom of the upper catheter (21). An expansion annular piece (24) is arranged at the top of the lower catheter (22). The expansion annular piece (24) is slidably matched in the expansion annular groove (23). An injection channel (25) is further arranged in the upper catheter (21), and the injection channel (25) communicates with the above-mentioned expansion annular groove (23).

3. The adaptable tracheotomy catheter according to claim 2, characterized in that: The airbag structure (4) includes a mounting sleeve (41) and an annular airbag (42). The annular airbag (42) is arranged around the outer wall of the mounting sleeve (41). One side of the inner wall of the mounting sleeve (41) is fixedly arranged on the outer wall of the lower catheter (22).

4. The adaptable tracheostomy catheter according to claim 2 or 3, characterized in that: A sealing rubber ring is arranged between the expansion annular piece (24) and the expansion annular groove (23).

5. The adaptable tracheotomy catheter according to claim 4, characterized in that: The inflation device (8) is an inflation balloon or an indicating balloon. The inflation tube structure (7) passes through the fixed wing (1) along the outer wall of the catheter body (2).

6. The adaptable tracheostomy catheter according to any one of claims 1-3 or 5, characterized in that: An installation ring groove (26) is arranged on the inner wall of the inner port of the catheter body (2). The bending guide part (3) has an installation ring part (31). The installation ring part (31) is rotatably matched with the installation ring groove (26). An annular limiting clamping groove (27) is arranged in the installation ring groove (26). Elastic limiting bosses (28) are evenly arranged around the two side walls of the annular limiting clamping groove (27). A limiting clamping ring (32) is arranged on the installation ring part (31). The limiting clamping ring (32) is matched with the annular limiting clamping groove (27). Limiting groove structures (33) are arranged on both sides of the limiting clamping ring (32). The limiting groove structures (33) are matched with the elastic limiting bosses (28).

7. The adaptable tracheotomy catheter according to claim 6, characterized in that: A sealing ring structure is further arranged between the installation ring part (31) and the installation ring groove (26). Striped structures (34) are evenly arranged on the inner wall of the installation ring part (31).

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