Anti-falling oxygen supply tube cannula

Abstract

The utility model discloses an anti-falling oxygen supply tube cannula which comprises a cannula body, an air bag and an air bag inflation tube, one end of the cannula body is provided with a vent hole, the other end of the cannula body is provided with a cannula connector, the air bag is located at the end close to the vent hole, the air bag inflation tube is located at the end close to the cannula connector, and the middle of the cannula body is sleeved with a positioning ring and a tooth pad. An inner ring groove is formed in the positioning ring, guide grooves communicated with the outside are formed in the two sides of the positioning ring, a first fastening belt and a second fastening belt are arranged in the guide grooves in a sliding mode, annular belts are fixedly arranged at the ends of the first fastening belt and the second fastening belt and arranged in the inner ring groove, and the cannula connector is of a Y-shaped structure. Through the matching effect of the positioning ring, the fastening belt and the annular belt, tight friction force is formed between the annular belt and the cannula body, so that the cannula body is fixed to a preset position, and the cannula is effectively prevented from sliding or falling off; by continuously monitoring the end-expiratory carbon dioxide concentration, the problems of abnormal respiratory system function, insufficient ventilation and the like can be found in time, and the metabolic state and ventilation effect of a patient are reflected at the same time.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an oxygen supply tube designed to prevent detachment. Background Technology

[0002] Postoperative oral cancer patients often experience large incision defects, bleeding, excessive oral secretions, tongue edema, and increased incision oozing and bleeding, which can easily lead to secretions flowing into the respiratory tract and causing complications such as suffocation. Therefore, it is necessary to retain an endotracheal tube after surgery to reduce the risk of airway asphyxiation. During the observation period in the recovery room, patients are given oxygen as needed. However, the incompatibility between conventional oxygen devices and endotracheal tubes poses risks to patients and inconveniences nursing care.

[0003] Chinese patent document (publication number: CN218944087U) discloses an endotracheal intubation oxygen inhalation device, including an endotracheal intubation mechanism, an oxygen inlet mechanism, and a filtration mechanism. The endotracheal intubation mechanism includes an air delivery tube, the oxygen inlet mechanism includes an oxygen inhalation tube with a three-way valve at one end, and a cap between the oxygen inhalation tube and the three-way valve. The filtration mechanism includes a dust removal layer, a filter layer, an adsorption layer, and an electrostatic dust removal zone. This invention connects the oxygen inhalation tube to an oxygen tank, and the cap ensures good airtightness between the oxygen inhalation tube and the three-way valve. The air delivery tube is inserted into the human respiratory tract and connected to the three-way valve through a first interface, allowing air to enter the respiratory tract. A carbon dioxide outlet allows the patient to breathe spontaneously. The filtration mechanism filters the inhaled air, ensuring better patient recovery and making the inhaled air safer. This solves the problem of high-flow oxygen inhalation for endotracheal intubation patients, while also addressing the issues of fixation and aesthetics.

[0004] In existing technologies, when patients undergo endotracheal intubation after surgery, adhesive tape is usually used to attach the intubation tube to the patient's skin. However, the adhesive tape can become less sticky due to sweat or other secretions, causing the intubation tube to loosen or shift when the tape is changed. During continuous use, endotracheal intubation cannot promptly respond to potential respiratory abnormalities or insufficient ventilation in patients, posing significant safety risks. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an oxygen delivery tube designed to prevent detachment. Through the combined action of a positioning ring, a fastening band, and an annular band, a tight frictional force is created between the annular band and the tube body, firmly securing the tube body in a predetermined position and effectively preventing slippage or detachment. Continuous monitoring of end-tidal carbon dioxide concentration allows for timely detection of respiratory dysfunction and insufficient ventilation, while also reflecting the patient's metabolic status and ventilation effectiveness, providing crucial information for medical personnel to assess the patient's respiratory function.

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

[0007] An anti-dislodgement oxygen delivery tube includes a tube body, an air bladder, and an air bladder inflation tube. One end of the tube body has a vent, and the other end has a tube connector. The tube body has an air bladder located near the vent, and the air bladder inflation tube is located near the tube connector. A positioning ring and a toothed pad are fitted around the middle of the tube body. The positioning ring has an inner ring groove, and guide grooves are formed on both sides of the inner ring groove, connecting it to the outside. A first fastening band and a second fastening band are slidably arranged in the guide groove. An annular band is fixed to the ends of both the first and second fastening bands, and the two annular bands are positioned within the inner ring groove. When the first and second fastening bands are tightened together, the two annular bands at the traction ends are stretched in opposite directions, and the annular bands on both sides secure the tube body to prevent slippage.

[0008] As a preferred technical solution of the present invention, a velvet fastener is fixed at the bottom of the first fastening band away from the positioning ring, and a hook fastener is fixed at the top of the second fastening band away from the positioning ring. When the velvet fastener and the hook fastener come into contact, a fastening connection is formed.

[0009] As a preferred technical solution of the present invention, the cannula connector includes a first branch pipe and a second branch pipe. The first branch pipe, the second branch pipe and the cannula body form a Y-shaped structure. A one-way valve is provided at the end of the first branch pipe. The one-way valve only allows gas to flow from inside the pipe to the outside. An air hole is opened on the side wall of the first branch pipe. The air hole is used to connect to a carbon dioxide monitor. The end of the second branch pipe is connected to an oxygen supply port.

[0010] As a preferred technical solution of the present invention, an external tube is provided at the connection between the first branch tube and the second branch tube, and the external tube is used to provide a suction channel.

[0011] As a preferred embodiment of the present invention, the tooth pad is made of silicone, and the outer wall of the tooth pad is provided with alternating grooves and protrusions.

[0012] As a preferred embodiment of the present invention, both the first fastening band and the second fastening band are made of elastic material.

[0013] As a preferred embodiment of the present invention, the outer wall of the cannula body is provided with graduation lines. Compared with the prior art, the present invention has the following advantages:

[0014] 1. In this utility model, the positioning ring, together with the first and second fastening bands made of elastic material, works by cooperating with the inner ring groove and the guide groove. When the fastening bands are tightened together, they drive the two ring bands to generate opposite pulling forces, which will create a tight friction between the ring bands and the cannula body, thereby firmly fixing the cannula body in the predetermined position and effectively preventing the cannula from sliding or falling off. At the same time, the toothed pad made of silicone material is used. The grooves and protrusions on its outer wall not only provide anti-slip effect, but also disperse the biting pressure, avoiding the cannula body being bitten or the airflow being obstructed due to excessive biting pressure.

[0015] 2. In this utility model, the Y-shaped intubation connector achieves effective separation of respiratory gases through the first and second branches. The first branch serves as the exhaled gas channel and is equipped with a one-way valve to prevent gas backflow. The air vents on the side wall are used to connect to a carbon dioxide monitor. By continuously monitoring the end-tidal carbon dioxide concentration, problems such as respiratory system dysfunction and insufficient ventilation can be detected in a timely manner, and the patient's metabolic status and ventilation effect can be reflected, providing an important reference for medical staff to assess the patient's respiratory function. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall installation structure of this utility model;

[0017] Figure 2 This is a three-dimensional cross-sectional view of the positioning ring portion of this utility model;

[0018] In the diagram: Intubation tube body - 10; Vent hole - 11; Airbag - 12; First branch tube - 13; Second branch tube - 14; One-way valve - 15; Air hole - 16; External tube - 17; Airbag inflation tube - 18; Tooth pad - 19; Scale line - 20; Positioning ring - 21; First fastening band - 22; Second fastening band - 23; Woven fastener - 24; Hook fastener - 25; Ring channel - 26; Inner ring groove - 27; Guide groove - 28; Annular belt - 29. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

[0020] Contents not described in detail in this specification are existing technologies known to those skilled in the art. In the description of this utility model, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, terms such as "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Figure 1 and Figure 2 As shown, an oxygen delivery cannula designed to prevent dislodgement includes a cannula body 10, an air bladder 12, and an air bladder inflation tube 18. One end of the cannula body 10 has a ventilation hole 11, and the other end has a cannula connector. The air bladder 12 is located near the ventilation hole 11, and the air bladder inflation tube 18 is located near the cannula connector. A positioning ring 21 and a toothed pad 19 are fitted into the middle of the cannula body 10. The positioning ring 21 has an inner ring groove 27. Guide grooves 28 are provided on both sides of the inner ring groove 27, and the guide grooves 28 connect the inner ring groove 27 to the outside. A first fastening band 22 and a second fastening band 23 are slidably arranged in the guide grooves 28, and annular bands 29 are fixed at the ends of the first fastening band 22 and the second fastening band 23. The two annular bands 29 are arranged in the inner ring groove 27. When the first fastening band 22 and the second fastening band 23 are tightened together, the two annular bands 29 at the ends are stretched in opposite directions, and the annular bands 29 are fastened to the cannula body 10 to prevent slippage.

[0022] The positioning ring 21 has an annular channel 26, the insertion tube body 10 passes through the annular channel 26, and the insertion tube body 10 passes through two annular belts 29.

[0023] In this invention, a Y-shaped intubation connector achieves effective separation of respiratory gases through a first branch tube 13 and a second branch tube 14. The first branch tube 13 serves as the exhaled gas channel and is equipped with a one-way valve 15 to prevent gas backflow. The side wall vent 16 is used to connect to a carbon dioxide monitor. The second branch tube 14 is specifically responsible for oxygen supply. The external tube 17 at the branch tube connection provides a suction channel. A positioning ring 21 is used in conjunction with a first fastening band 22 and a second fastening band 23 made of elastic material. Through the special design of the inner ring groove 27 and the guide groove 28, when the fastening bands are tightened together, they drive the two ring bands 29 to generate opposite pulling forces to ensure the stability of the intubation tube. At the same time, a silicone toothed pad 19 is used. The grooves and protrusions on its outer wall not only provide an anti-slip effect but also disperse the biting pressure, forming a synergistic protection with the fixing system of the positioning ring 21.

[0024] It should be noted that the toothed pad 19 is slidably fitted on the intubation tube body 10 and can be removed from the intubation tube body 10, which is convenient for use when the endotracheal tube is inserted into the human body through the nasal cavity.

[0025] Furthermore, a felt fastener 24 is fixed to the bottom of the first fastening band 22 at the end away from the positioning ring 21, and a hook fastener 25 is fixed to the top of the second fastening band 23 at the end away from the positioning ring 21. When the felt fastener 24 and the hook fastener 25 come into contact, a fastening connection is formed.

[0026] See Figure 1 When the first fastening band 22 and the second fastening band 23 need to be secured, medical staff wrap the two fastening bands around the patient's head. The felt fastener 24 at the bottom of the first fastening band 22 and the hook fastener 25 at the top of the second fastening band 23 are attached to each other to form a stable hook-and-loop connection. This connection will cause the annular bands 29 at both ends to generate tensile force in opposite directions. Since the annular bands 29 are set in the inner annular groove 27 of the positioning ring 21, this opposing tensile force will create a tight friction between the annular bands 29 and the cannula body 10, thereby firmly fixing the cannula body 10 in the predetermined position and effectively preventing the cannula from sliding or falling off.

[0027] Furthermore, the cannula connector includes a first branch tube 13 and a second branch tube 14. The first branch tube 13, the second branch tube 14 and the cannula body 10 are in a Y-shaped structure. A one-way valve 15 is provided at the end of the first branch tube 13. The one-way valve 15 only allows gas to flow from inside the tube to the outside. An air hole 16 is opened on the side wall of the first branch tube 13. The air hole 16 is used to connect to a carbon dioxide monitor. The end of the second branch tube 14 is connected to an oxygen supply port.

[0028] See Figure 1The first branch tube 13 and the second branch tube 14 form a Y-shaped connection structure with the intubation body 10. This design effectively separates the inlet and outlet channels of respiratory gas: the first branch tube 13 serves as the exhaled gas channel, and the one-way valve 15 at its end ensures that gas can only flow from the inside of the tube to the outside. This one-way control not only prevents cross-infection that may be caused by the backflow of external gas, but also avoids the mixing of exhaled gas with fresh oxygen supply, which would affect the treatment effect; at the same time, the air hole 16 opened on the side wall of the first branch tube 13 is specifically used to connect a carbon dioxide monitor. By continuously monitoring the end-tidal carbon dioxide concentration, problems such as respiratory system dysfunction and insufficient ventilation can be detected in a timely manner, and the patient's metabolic status and ventilation effect can be reflected, providing an important reference for medical staff to assess the patient's respiratory function; the second branch tube 14 is specifically responsible for the oxygen supply function, and its end is directly connected to the oxygen supply port, ensuring the stability and reliability of the oxygen supply.

[0029] It should be noted that the endotracheal connector and the endotracheal tube body 10 are connected by a detachable connection, such as a threaded connection, which is convenient for connecting the endotracheal tube to the anesthesia machine through the threaded tube during surgery, and for connecting the endotracheal connector to the endotracheal tube body 10 after surgery.

[0030] Furthermore, an external tube 17 is provided at the connection between the first branch tube 13 and the second branch tube 14, the external tube 17 being used to provide a suction channel.

[0031] See Figure 1 An external tube 17 is installed at the connection between the first branch tube 13 and the second branch tube 14, specifically for providing a suction channel. This design allows medical staff to promptly clear secretions and sputum from the patient's airway, maintaining airway patency, preventing complications such as airway obstruction and infection, thereby improving treatment outcomes. This integrated design, combining oxygen supply, exhaust, monitoring, and suction functions, not only facilitates operation for medical staff but also significantly enhances patient safety and comfort.

[0032] Furthermore, the tooth pad 19 is made of silicone, and the outer wall of the tooth pad 19 is provided with grooves and protrusions in an alternating pattern.

[0033] See Figure 1 The dental pad 19 is used to protect the cannula body 10 from patient biting or occlusion-induced airway obstruction. The dental pad 19 is made of silicone and has an alternating groove and protrusion structure on its outer wall. Silicone material has good biocompatibility and flexibility, which can effectively protect the patient's teeth and avoid damage to the oral cavity during long-term use; the specially designed grooves and protrusions on the outer wall not only enhance the anti-slip effect and provide more stable occlusal support, but also distribute occlusal pressure and improve wearing comfort.

[0034] Furthermore, the outer wall of the cannula body 10 is provided with scale lines 20.

[0035] See Figure 1 The outer wall of the cannula body 10 is provided with scale lines 20. These scale lines can help medical staff accurately grasp the cannula position, facilitate the control of the initial insertion depth and the subsequent position adjustment and monitoring, and effectively prevent complications that may be caused by cannula insertion that is too deep or too shallow.

[0036] Furthermore, both the first fastening band 22 and the second fastening band 23 are made of elastic material.

[0037] The flexible design provides stable fixation force and can adaptively adjust the tension according to the shape of the patient's head, avoiding discomfort or tissue damage caused by excessive local pressure, while maintaining the necessary fixation strength to ensure stable cannulation position.

[0038] This utility model is illustrated through the above embodiments, but it is not limited to these embodiments, meaning that it cannot be implemented solely based on them. Those skilled in the art should understand that all related improvements to this utility model fall within its protection and disclosure scope.

Claims

1. An oxygen delivery tube designed to prevent detachment, comprising a tube body (10), an air bladder (12), and an air bladder inflation tube (18), characterized in that, One end of the cannula body (10) has a vent (11), and the other end of the cannula body (10) is provided with a cannula connector. An airbag (12) is provided on the cannula body (10), with the airbag (12) located at the end near the vent (11), and the airbag inflation tube (18) located at the end near the cannula connector. The middle part of the cannula body (10) is fitted with a positioning ring (21) and a toothed pad (19). The positioning ring (21) has an inner ring groove (27) inside. Guide grooves (28) are provided on both sides of the inner ring groove (27). The guide grooves (28) connect the inner ring groove (27) to the outside. The first fastening band (22) and the second fastening band (23) are slidably arranged in the guide groove (28), and the ends of the first fastening band (22) and the second fastening band (23) are fixed with annular bands (29), and the two annular bands (29) are arranged in the inner annular groove (27); When the first fastening band (22) and the second fastening band (23) are tightened together, the two annular bands (29) at the traction end are stretched in opposite directions, and the annular bands (29) on both sides tighten the cannula body (10) to prevent slippage.

2. The oxygen supply tube with anti-dislodgement feature according to claim 1, characterized in that, A felt fastener (24) is fixed at the bottom of the first fastening band (22) away from the positioning ring (21), and a hook fastener (25) is fixed at the top of the second fastening band (23) away from the positioning ring (21). When the felt fastener (24) and the hook fastener (25) come into contact, a fastening connection is formed.

3. The oxygen supply tube with anti-dislodgement feature according to claim 1, characterized in that, The cannula connector includes a first branch pipe (13) and a second branch pipe (14). The first branch pipe (13), the second branch pipe (14) and the cannula body (10) form a Y-shaped structure. A one-way valve (15) is provided at the end of the first branch pipe (13). The one-way valve (15) only allows gas to flow from inside the pipe to the outside. An air hole (16) is opened on the side wall of the first branch pipe (13). The air hole (16) is used to connect to a carbon dioxide monitor. The end of the second branch pipe (14) is connected to an oxygen supply port.

4. The oxygen supply tube with anti-dislodgement feature according to claim 3, characterized in that, An external tube (17) is provided at the connection between the first branch tube (13) and the second branch tube (14), and the external tube (17) is used to provide a suction channel.

5. The oxygen supply tube with anti-dislodgement feature according to claim 1, characterized in that, The tooth pad (19) is made of silicone, and the outer wall of the tooth pad (19) is provided with grooves and protrusions in an alternating manner.

6. The oxygen supply tube with anti-dislodgement feature according to claim 1, characterized in that, Both the first fastening band (22) and the second fastening band (23) are made of elastic material.

7. The oxygen supply tube with anti-dislodgement feature according to any one of claims 1-6, characterized in that, The outer wall of the cannula body (10) is provided with scale lines (20).

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