A multifunctional conversion joint

Abstract

This utility model discloses a multifunctional adapter, including a first insertion tube, a second insertion tube, and a sleeve tube. The sleeve tube is located on the upper side of the first and second insertion tubes, forming a herringbone structure. A sleeve cap is provided at the end of the sleeve tube, and a first plug cap and a second plug cap are respectively provided at the ports of the first and second insertion tubes, each with a protruding plug inside. An inner sleeve is detachably installed on the inner side of the upper port of the sleeve tube. The inner sleeve includes a rubber sleeve and multiple evenly arranged support rings. The rubber sleeve provides elastic support through the support rings and provides a sealed connection for plugs of different sizes. A pressure ring is installed at the upper port of the sleeve tube. The outer side of the pressure ring has external threads that engage with the internal threads of the sleeve tube. An annular baffle is fixed at the upper end of the pressure ring to limit and block the inner sleeve. A retaining ring is fixed on the inner side of the sleeve tube to support and fix the installation position of the inner sleeve, thereby ensuring sealing and stability.

Description

Technical Field

[0001] This utility model belongs to the field of pipe fitting technology, specifically relating to a multifunctional conversion connector. Background Technology

[0002] In clinical treatment, a gastric tube is a commonly used medical device for enteral nutrition delivery. Enteral nutrition delivery relies primarily on the connection between the gastric tube and the enteral nutrition pump tubing to deliver nutrient solutions into the patient's digestive tract. However, because different medical institutions and patients use different specifications of gastric tubes, their connector sizes and interface types vary, making standardized delivery tubing difficult to use interchangeably. This incompatibility may require medical personnel to use additional adapters during infusion, increasing the complexity of the procedure. Furthermore, loose connections or insufficient sealing may lead to leakage of the nutrient solution, affecting the effectiveness of the infusion.

[0003] Existing adapter designs are primarily designed for single-size gastric tubes or infusion tubing, limiting their applicability and making them unsuitable for flexibly matching different types of gastric tube connectors. Furthermore, some existing adapters lack effective sealing structures during connection, potentially leading to leakage during infusion and affecting its safety and efficiency. Additionally, a lack of flexibility in the insertion connection components can result in difficult or unstable connections, impacting practical effectiveness. Therefore, current technologies suffer from limitations in applicability, insufficient sealing, and unstable connections, necessitating a technical solution that can adapt to various gastric tube sizes while possessing excellent sealing performance and stable connection capabilities. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a multifunctional adapter that can select the appropriate insertion tube for connection according to the size of the gastric tube connector, thereby adapting to various specifications of gastric tube connectors. At the same time, through the elastic cooperation between the rubber sleeve and the support ring, a sealed connection is achieved and it can adapt to different plug sizes, improving the stability and reliability of use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-functional adapter includes a first connector, a sleeve connector, and a second connector. The sleeve connector is disposed on the upper side of the first connector and the second connector, and the first connector, the sleeve connector, and the second connector form a V-shape.

[0007] A sleeve cap is fixed on the sleeve to cover its end portion, and a first plug cap and a second plug cap are fixed on the first insertion tube and the second insertion tube respectively to seal their ports.

[0008] The inner sleeve, which can be elastically contracted, is detachably installed on the inner side of the upper port of the sleeve, and a pressure ring is installed at the upper port of the sleeve to limit and block the inner sleeve.

[0009] Furthermore, the inner sleeve includes a rubber sleeve, and multiple evenly arranged support rings are fixed on the outer side of the rubber sleeve.

[0010] Furthermore, the outer side of the pressure ring is provided with external threads, and an annular baffle is fixed to the upper end of the pressure ring.

[0011] Furthermore, a retaining ring is fixed on the inner side of the sleeve to prevent the inner sleeve from being installed, and an internal thread is provided on the inner side of the upper port of the sleeve.

[0012] Furthermore, the first plug and the second plug are respectively fitted onto the first insertion tube and the second insertion tube, and the inner sides of the first plug and the second plug are fixed with protruding plugs.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention provides a multifunctional adapter that can adapt to different specifications of gastric tube connectors and enteral nutrition pump tubing plugs, improving the compatibility of the infusion system and avoiding operational inconvenience and medical risks caused by interface incompatibility. Through the combination of a first insertion tube, a second insertion tube, and a sleeve tube, this invention makes the connection method more flexible, adaptable to various interface specifications, thereby reducing the frequency of medical equipment parts replacement, improving equipment versatility, and reducing hospital procurement and management costs.

[0015] This invention employs an inner sleeve design combining a rubber sleeve and support rings, which enhances the sealing effect while ensuring connection stability. The rubber sleeve is made of medical-grade silicone, possessing excellent elasticity and corrosion resistance, providing good sealing support for plugs of different diameters and preventing leakage of nutrient solution due to interface size deviations. The support rings are evenly distributed on the outer side of the rubber sleeve, allowing it to bear force evenly and maintain a stable seal when plugs of different sizes are inserted, thereby improving the safety of infusion and preventing liquid leakage from contaminating equipment or affecting patient treatment.

[0016] This invention achieves effective fixing and limiting adjustment of the inner sleeve through the cooperation of a pressure ring and a retaining ring. The pressure ring is made of stainless steel, possessing excellent durability and mechanical strength. Its outer surface is threaded, allowing for a tight connection with the inner thread of the sleeve via screwing, ensuring that the inner sleeve does not shift or loosen during use. The retaining ring's baffle design enhances structural strength and prevents deformation or slippage due to excessive force during long-term use, thereby improving the equipment's service life and stability. The retaining ring provides limiting support for the inner sleeve, ensuring its correct installation and making the sealing structure more reliable.

[0017] This invention incorporates removable first and second plugs at the ports of the first and second insertion tubes, preventing dust or bacteria from entering the infusion system and contaminating it when not in use, thus improving the hygiene and safety of the infusion process. The first and second plugs have protruding plugs inside, which fit tightly against the inner wall of the insertion tube, creating a good seal and preventing external air from entering and affecting the infusion quality. The plugs are made of highly corrosion-resistant materials, allowing for long-term use and meeting medical cleaning and disinfection requirements, thereby improving the reliability and safety of the equipment.

[0018] Through the above technical solution, this utility model effectively solves the problems of inconsistent gastric tube connector specifications, insufficient sealing performance, unstable connection, and short service life in the prior art. This utility model has a reasonable design, compact structure, and simple operation, and can meet the connection needs of gastric tubes and nutrition pump tubes of different specifications, improving the stability, safety, and applicability of medical infusion systems. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the inner sleeve of this utility model;

[0021] Figure 3 This is a schematic diagram of the pressure ring of this utility model;

[0022] Figure 4 This is a schematic diagram of the sleeve pipe of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. First insertion tube; 11. First plug; 2. Sleeve tube; 21. Sleeve cap; 22. Internal thread; 23. Retaining ring; 3. Pressure ring; 31. External thread; 32. Baffle; 4. Inner sleeve; 41. Rubber sleeve; 42. Support ring; 5. Second insertion tube; 51. Second plug. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model. Example

[0026] like Figure 1 As shown, a multi-functional adapter includes a first insertion tube 1, a sleeve tube 2, and a second insertion tube 5. The sleeve tube 2 is located on the upper side of the first insertion tube 1 and the second insertion tube 5, and the first insertion tube 1, the sleeve tube 2, and the second insertion tube 5 form a V-shaped structure. The internal channels of the first insertion tube 1 and the second insertion tube 5 are connected to the sleeve tube 2, thereby ensuring smooth delivery of fluid during infusion. The diameters of the first insertion tube 1 and the second insertion tube 5 are 6mm and 8mm, respectively, to accommodate different types of gastric tube connectors. The sleeve tube 2 has a diameter of 10mm to match the plug on the enteral nutrition pump tube, ensuring the smoothness and compatibility of infusion.

[0027] The sleeve 2 is fixed with a sleeve cap 21 to cover its end. The sleeve cap 21 is made of medical-grade silicone material, which has good sealing performance and corrosion resistance, thus preventing dust or foreign objects from entering and affecting use when not in use for a long time. The first insertion tube 1 and the second insertion tube 5 are respectively fixed with a first plug cap 11 and a second plug cap 51 to seal their ports. The first plug cap 11 and the second plug cap 51 are both made of polytetrafluoroethylene (PTFE) material, which has good chemical corrosion resistance and can effectively prevent nutrient solution leakage, while facilitating daily cleaning and disinfection.

[0028] like Figure 1 As shown, an inner sleeve 4 capable of elastic contraction is detachably installed on the inner side of the upper port of the sleeve 2; the inner sleeve 4 can adapt to plugs of different sizes for connection and ensure sealing; a pressure ring 3 is installed at the upper port of the sleeve 2 to limit and block the inner sleeve 4. The pressure ring 3 is made of stainless steel 304, which can provide good mechanical strength and prevent deformation or loosening after long-term use.

[0029] like Figure 2 As shown, the inner sleeve 4 includes a rubber sleeve 41. The rubber sleeve 41 is made of medical-grade silicone, which has good elastic recovery ability and liquid corrosion resistance. It can tightly wrap around the outside of the plug to improve the connection sealing. The outer side of the rubber sleeve 41 is fixed with a number of evenly arranged support rings 42. There are 6 support rings 42, which are made of polyamide (PA). The evenly distributed structure provides elastic support, so that the rubber sleeve 41 can be stably deformed when plugs of different sizes are inserted, and ensures the rebound sealing effect.

[0030] like Figure 3 As shown, the outer side of the pressure ring 3 is provided with an external thread 31, the pitch of which is 1mm. It can be screwed into the internal thread 22 of the sleeve 2 and the installation position of the inner sleeve 4 is stabilized by the threaded locking structure. The upper end of the pressure ring 3 is fixed with an annular baffle 32, the thickness of which is 2mm and the diameter is slightly larger than that of the pressure ring 3 by 1mm, so as to provide additional limiting support and ensure that the pressure ring 3 will not slip or loosen due to excessive force during use.

[0031] like Figure 4 As shown, a retaining ring 23 is fixed on the inner side of the sleeve 2 to prevent the inner sleeve 4 from being installed. The retaining ring 23 is 1.5mm thick and made of polycarbonate (PC) material. It has high strength and impact resistance and can provide effective blocking when the inner sleeve 4 is inserted to prevent the installation from being too deep and affecting the sealing effect. The upper port of the sleeve 2 is provided with an internal thread 22. The specification of the internal thread 22 is M10×1, which can achieve a stable threaded connection with the external thread 31 of the pressure ring 3, thereby enhancing the stability of the overall structure and preventing the connection from loosening.

[0032] like Figure 1 As shown, the first plug 11 and the second plug 51 are respectively fitted onto the first insertion tube 1 and the second insertion tube 5. The inner side of the first plug 11 and the second plug 51 is fixed with a protruding plug; the diameter of the plug is 5mm and 7mm respectively, which matches the inner diameter of the first insertion tube 1 and the second insertion tube 5 to ensure that a tight seal is formed when inserted to prevent liquid leakage; the plug is made of medical-grade silicone, which is soft and can generate a certain rebound force after being tightened, thereby improving the sealing effect and reducing the operating resistance when it is pulled out, thus improving the convenience of use.

[0033] Example 2: Multifunctional conversion structure adaptable to different sizes of gastric tube connectors

[0034] In this embodiment, in order to accommodate different specifications of gastric tube connectors and enteral nutrition pump tube plugs, the diameters of the first insertion tube 1 and the second insertion tube 5 are designed to be 6mm and 8mm respectively, so as to accommodate different models of gastric tube connectors for connection; the diameter of the sleeve tube 2 is 10mm, so as to match the plug on the enteral nutrition pump tube for connection, ensuring the smoothness and compatibility of infusion.

[0035] During use, doctors can select the appropriate insertion tube according to the size of the gastric tube connector to ensure that the gastric tube and the adapter can be tightly matched. When the enteral nutrition pump tube plug is inserted into the sleeve tube 2, the tube wall and the plug form a tight connection, ensuring the stability of nutrient solution delivery and avoiding problems such as liquid leakage or loose connection due to mismatch of interfaces.

[0036] Comparison Case 1: Some existing adapters on the market are typically only compatible with specific sizes of gastric tubes or nutrition pump tubing. For example, some products only support 8mm diameter connections and cannot accommodate 6mm or 10mm sizes. If the gastric tube or nutrition pump tubing used in the hospital is incompatible, an additional adapter is required, increasing the difficulty of operation and potentially leading to adapter detachment or unstable connections. In contrast, this embodiment, through its multi-specification connector design, effectively avoids medical risks caused by incompatible interface specifications, improving the versatility and safety of the equipment.

[0037] Example 3: Rubber sleeve and support ring combination structure for enhanced sealing

[0038] In this embodiment, to address the potential issue of insufficient sealing during infusion, an inner sleeve 4 structure consisting of a rubber sleeve 41 and a support ring 42 is specifically designed. The rubber sleeve 41 is made of medical-grade silicone with a thickness of 2mm, possessing excellent elastic recovery and corrosion resistance, allowing it to tightly wrap around the plug and generate a rebound force after insertion, thus improving the sealing effect. The inner diameter of the rubber sleeve 41 ranges from 6.5mm to 9mm, accommodating plugs of different diameters and forming a stable sealing connection during use. The support ring 42 is made of polyamide (PA) material with a diameter of 12mm and a thickness of 1mm. Six rings are evenly distributed on the outer side of the rubber sleeve 41, providing stable support for the rubber sleeve and maintaining its elastic sealing performance when plugs of different sizes are inserted, while preventing sealing failure due to excessive compression.

[0039] During use, when the plug is inserted into the upper port of the sleeve 2, the plug first contacts the inner wall of the rubber sleeve 41. As the plug is pushed in, the rubber sleeve 41 undergoes uniform elastic deformation under the action of the support ring 42, so that the plug is wrapped and firmly fixed, avoiding the problem of loose connection due to plug size deviation. The supporting effect of the support ring 42 makes the rubber sleeve 41 bear force evenly, preventing uneven deformation or sealing failure caused by single point force, thereby improving the stability and sealing of the connection.

[0040] Comparative Case 2: Some existing adapters use only a single-layer rubber ring for sealing. Due to the limited elastic recovery of the rubber ring, it may age, deform, or fail to seal properly after long-term use, leading to leakage of the nutrient solution. Furthermore, some single-layer rubber rings exhibit uneven sealing when adapting to plugs of different diameters. A plug that is too large may cause excessive deformation of the rubber ring, affecting insertion, while a plug that is too small may result in a poor seal. In contrast, this embodiment uses a combination of a rubber sleeve and a support ring, resulting in more stable sealing performance. It can adapt to plugs of different sizes and provides a durable sealing effect, improving the safety of infusion.

[0041] Example 4: Fixing and Limiting Adjustment Structure of Pressure Ring and Retaining Ring

[0042] In this embodiment, to enhance the fixing stability of the inner sleeve 4 and ensure that it will not shift or loosen during use, a combined fixing structure of pressure ring 3 and retaining ring 23 is adopted. The outer side of the pressure ring 3 is provided with external thread 31 with a pitch of 1mm, which can be screwed into the internal thread 22 of the sleeve 2, thereby providing a stable mechanical locking force during installation. The pressure ring 3 is made of 304 stainless steel with a thickness of 2mm, which has high mechanical strength and corrosion resistance, and can maintain good stability during long-term use. An annular baffle 32 is fixed at the upper end of the pressure ring 3. The diameter of the baffle 32 is 1mm larger than that of the pressure ring 3, which can provide additional limiting support during installation and ensure that the pressure ring 3 will not slip when subjected to external force.

[0043] The retaining ring 23 is 1.5mm thick and made of polycarbonate (PC) material. It has high strength and impact resistance, and can provide effective limiting support when the inner sleeve 4 is inserted, and prevent the inner sleeve 4 from affecting the sealing effect due to over-insertion. During use, the inner sleeve 4 is installed above the retaining ring 23, and then the pressure ring 3 fixes the inner sleeve 4 in the set position through threaded connection, ensuring that the inner sleeve 4 will not be displaced due to vibration or force during use, thus improving the reliability and stability of the connection.

[0044] Comparison Case 3: Some existing adapters use only simple clips or glue to fix the inner sleeve. Clips are prone to loosening or deformation after repeated use, while glue fixation is difficult to disassemble and maintain. Once the fixing parts are damaged or aged, they are difficult to replace. In contrast, this embodiment uses a mechanical fixing structure of pressure ring 3 and retaining ring 23 to make the installation of the inner sleeve 4 more stable. When replacement is needed, it can be easily disassembled by loosening pressure ring 3, thereby improving the convenience of equipment maintenance and service life.

[0045] Example 5: Detachable first and second plug structure

[0046] In this embodiment, to prevent the infusion system from being contaminated when not in use and to improve overall hygiene and safety, a first plug 11 and a second plug 51 are respectively provided at the ports of the first insertion tube 1 and the second insertion tube 5. The first plug 11 and the second plug 51 are made of polytetrafluoroethylene (PTFE) material, which has excellent chemical corrosion resistance and high temperature resistance, and can meet the high temperature sterilization requirements in medical environments. The first plug 11 and the second plug 51 are both fixed with protruding plugs with diameters of 5mm and 7mm respectively, which fit tightly with the inner wall of the insertion tube to form a good sealing effect and prevent external air from entering and affecting the infusion quality.

[0047] During use, when intravenous infusion is required, the first stopper 11 or the second stopper 51 can be removed directly and a gastric tube connector of the corresponding specification can be inserted. When the infusion is finished or when the infusion is not used for a long time, the stopper can be reinstalled to prevent dust, bacteria or foreign objects from entering the infusion tubing, thereby improving the hygiene and safety of the infusion and reducing the workload of cleaning and maintenance.

[0048] Comparison Case 4: Some existing infusion adapters are not equipped with port sealing devices, which can easily accumulate dust or breed bacteria when not in use for a long time, affecting the quality of infusion. In contrast, this embodiment, through the design of a detachable sealing plug, can effectively protect the hygiene and safety of the infusion system and ensure the sealing effect of the equipment at different stages of use.

[0049] The working principle of this utility model is as follows: When administering nutritional fluid to a patient, the first insertion tube 1 or the second insertion tube 5 on the adapter is inserted into the inside of the gastric tube connector according to the size of the gastric tube connector, so as to adapt to the connection of gastric tube connectors of various specifications. After the adapter is connected to the gastric tube, the plug on the enteral nutrition pump tube is inserted into the inside of the sleeve tube 2, and then the enteral nutrition pump can be started to deliver nutritional fluid.

[0050] When the plug on the enteral nutrition pump tubing is inserted into the inner side of the sleeve 2, the plug is also inserted into the inner side of the rubber sleeve 41. The rubber sleeve 41 uses its own elasticity and the elastic support of the support ring 42 to tighten around the outside of the plug, ensuring a tight seal during connection. At the same time, the cooperation between the rubber sleeve 41 and the support ring 42 allows for a wider range of adjustment to meet the sealing connection requirements of plugs of different sizes.

[0051] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A multi-functional adapter, characterized in that: It includes a first insertion tube (1), a sleeve tube (2), and a second insertion tube (5). The sleeve tube (2) is disposed on the upper side of the first insertion tube (1) and the second insertion tube (5), and the first insertion tube (1), the sleeve tube (2), and the second insertion tube (5) form a V-shape. The sleeve (2) is fixed with a sleeve cap (21) to cover its end part, and the first insertion tube (1) and the second insertion tube (5) are respectively fixed with a first plug cap (11) and a second plug cap (51) to seal their ports. The inner sleeve (4) capable of elastic contraction is detachably installed on the inner side of the upper port of the sleeve (2), and a pressure ring (3) for limiting and blocking the inner sleeve (4) is installed at the upper port of the sleeve (2).

2. A multi-functional adapter according to claim 1, characterized in that: The inner sleeve (4) includes a rubber sleeve (41), and a plurality of uniformly arranged support rings (42) are fixed on the outer side of the rubber sleeve (41).

3. A multifunctional adapter according to claim 1, characterized in that: The outer side of the pressure ring (3) is provided with an external thread (31), and the upper end of the pressure ring (3) is fixed with an annular baffle (32).

4. A multifunctional adapter according to claim 3, characterized in that: The inner side of the sleeve (2) is fixed with a retaining ring (23) to block the installation of the inner sleeve (4), and the inner side of the upper port of the sleeve (2) is provided with an internal thread (22).

5. A multi-functional adapter according to claim 1, characterized in that: The first plug (11) and the second plug (51) are respectively fitted onto the first insertion tube (1) and the second insertion tube (5), and the inner sides of the first plug (11) and the second plug (51) are fixed with protruding plugs.

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