Transfusion apparatus switching device and transfusion system thereof

Abstract

The utility model relates to the technical field of medical infusion, in particular to an infusion apparatus switching device and an infusion system thereof. The infusion apparatus switching device comprises a switching base and a limiting assembly, a puncture channel and an infusion channel which are communicated with each other are arranged in the switching base, a puncture soft needle is arranged in the puncture channel, the puncture channel is used for receiving the puncture needle so as to implant the puncture soft needle subcutaneously, and the infusion channel is used for being communicated with an infusion pipeline and enabling liquid in the infusion pipeline to flow to the puncture soft needle; the limiting assembly comprises a first limiting block and a second limiting block which are installed on the infusion channel in a matched mode, the first limiting block is used for fixing the infusion pipeline, and the second limiting block is used for fixing the first limiting block. The infusion apparatus has the advantages that due to the fact that the first limiting block is fixed in the infusion channel through the second limiting block, and the second limiting block is detachable, when the second limiting block is detached, the first limiting block can also be detached and replaced, and when the first limiting block needs to be replaced, the first limiting block can be replaced conveniently through the arrangement mode.

Description

Technical Field

[0001] The utility model relates to the technical field of medical infusion, in particular to an infusion set adapter and an infusion system thereof. Background Art

[0002] Patients or doctors often use infusion pumps when performing medical procedures, such as injecting insulin or other medical fluids. These infusion pumps include a liquid infusion assembly and an infusion pump adapter. The infusion pump adapter includes an adapter and an infusion assembly. The infusion assembly can be detachably mounted on the adapter, which is secured to the patient's skin via a skin patch, allowing the infusion assembly to be selectively mounted on the adapter to deliver the medication.

[0003] If the infusion assembly is clogged or the medicine is used up, it is necessary to replace or install a new infusion assembly in time. How to ensure that the infusion assembly maintains good liquid flow and sealing after multiple plugging and unplugging is an urgent problem to be solved. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides an infusion set adapter.

[0005] An infusion adapter device comprises: an adapter seat, wherein a puncture channel and an infusion channel interconnected are provided in the adapter seat, a puncture soft needle is arranged in the puncture channel, the puncture channel is used to receive the puncture needle to implant the puncture soft needle subcutaneously, and the infusion channel is used to connect the infusion pipeline and allow the liquid in the infusion pipeline to flow to the puncture soft needle; a limiting assembly comprises a first limiting block and a second limiting block which are cooperatively installed in the infusion channel, the first limiting block is used to fix the infusion pipeline, the second limiting block is used to fix the first limiting block, and the second limiting block is detachable and installed in the infusion channel.

[0006] With such a configuration, when the infusion adapter is in use, the infusion line extends into the infusion channel through the limiting assembly, and then flows to the puncture channel through the infusion channel. Since the puncture needle in the puncture channel is implanted subcutaneously, the liquid medicine in the infusion line is injected into the human body through the puncture needle to complete the infusion of the liquid medicine. The first limiting block can fix the infusion line at a preset position, and ensure good liquid flowability and air tightness between the infusion line and the adapter during multiple plugging and unplugging of the infusion line. Since the first limiting block is fixed in the infusion channel by the second limiting block, and the second limiting block is detachable, when the second limiting block is removed, the first limiting block can also be removed and replaced. When the first limiting block needs to be replaced (for example, it is damaged or incompatible with the infusion line), the above-mentioned configuration can facilitate the replacement of the first limiting block.

[0007] In one embodiment, the puncture channel and the infusion channel are arranged at an angle.

[0008] In one embodiment, the outer wall of the second limit block abuts against the inner wall of the infusion channel, a receiving cavity is defined in the second limit block, and the first limit block is embedded in the receiving cavity and connected to the second limit block.

[0009] In one embodiment, the second limit block includes a main body and a clamping portion, the main body is provided with the accommodating cavity, and the side of the main body close to the puncture channel is provided with an installation opening connected to the accommodating cavity; the clamping portion is connected to the main body to form the inner wall of the accommodating cavity, and extends toward the puncture channel through the installation opening, and the clamping portion is constructed with a guide surface inclined relative to the installation opening.

[0010] In one embodiment, at least two spaced-apart reinforcing ribs are protruded from one side of the clamping portion close to the middle of the accommodating cavity, and a side surface of the clamping portion between the two reinforcing ribs is configured as an arc surface.

[0011] In one embodiment, the adapter seat includes a base plate and a base body, the base body is connected to the base plate, the base plate has an upper surface facing the base body, a first step is protruded from the upper surface, and the second limit block is bent on one side close to the base plate to form a second step, and the second step abuts against the first step along the direction of the plane where the upper surface is located.

[0012] In one embodiment, the infusion adapter device also includes an infusion component, which includes a plug and an infusion line. The infusion line is connected to the plug, and the plug is plugged into the adapter. As the plug is inserted into the adapter, the infusion line extends into the infusion channel.

[0013] In one embodiment, a limiting protrusion is constructed on the adapter seat, and a limiting groove is provided on the plug. When the plug is inserted into the adapter seat, the limiting protrusion and the limiting groove are engaged with each other.

[0014] In one embodiment, the adapter seat includes a base plate and a base body, the base body is connected to the base plate, and the base plate has an upper surface facing the base body; the insertion direction of the plug is a first direction, and the direction perpendicular to the first direction and parallel to the upper surface is a second direction, and there are two limiting protrusions, which are respectively arranged on both sides of the second direction of the upper surface; the plug includes a fixed part and a movable part, the movable part is connected to the fixed part and is located on both sides of the fixed part in the second direction, and the limiting grooves are provided on the two movable parts, and the limiting grooves are correspondingly engaged with the limiting protrusions.

[0015] In one embodiment, the movable portion is movably connected to the fixed portion and is configured to deform and move toward the fixed portion in response to an external force, so that the limiting protrusion escapes from the limiting groove.

[0016] In one embodiment, the end of the movable portion close to the seat body is configured with an inclined surface, and as the plug is inserted into the adapter seat, the moving path of the end of the movable portion at least partially overlaps with the limiting protrusion.

[0017] In one embodiment, along a third direction perpendicular to the upper surface of the bottom plate, both sides of the movable portion are provided with the inclined surface and the limiting groove.

[0018] The present invention also provides an infusion system, comprising the infusion set adapter as described above and an insulin infusion device, wherein the insulin infusion device is connected to the infusion set adapter.

[0019] This utility model provides a detachable stopper assembly. The first stopper in the stopper assembly is used to secure the infusion tube. The second stopper is detachably mounted in the adapter to secure the first stopper. The second stopper is easy to remove, making it easier to remove when work needs change. Furthermore, the connection structure between the adapter and the plug is optimized, making the connection between the two more stable and the connection stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural cross-sectional view of one embodiment of the infusion set adapter provided by the utility model;

[0021] Figure 2 This is a structural cross-sectional view of one embodiment of the infusion set adapter provided by the utility model;

[0022] Figure 3 This is a schematic structural diagram of the second limit block of one embodiment of the infusion set adapter provided by the utility model;

[0023] Figure 4 This is a schematic structural diagram of one embodiment of the infusion system provided by the present utility model;

[0024] Figure 5 for Figure 1 A partial enlarged view of point A in the figure.

[0025] The symbols in the figure mean the following:

[0026] 100, infusion adapter; 10, adapter seat; 111, puncture channel; 112, infusion channel; 12, bottom plate; 121, first step; 122, limit protrusion; 123, upper surface; 13, seat body; 131, locking hole; 20, puncture needle; 30, limit assembly; 31, first limit block; 32, second limit block; 321, main body; 3211, accommodating cavity; 3212, mounting port; 322, clamping portion; 3 221. Guide surface; 3222. Reinforcing rib; 323. Second step; 324. Perforation; 40. Infusion assembly; 41. Plug; 411. Fixed portion; 4111. Hollowing; 412. Movable portion; 413. Locking column; 4131. Guide structure; 4121. Limiting groove; 4122. Inclined surface; 4123. Edge; 50. Insulin infusion device; 51. Medication reservoir cover; 60. Steering member; 61. Side hole; 62. Main hole. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it may be directly on the other mechanism or there may be a central mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a central mechanism at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0032] See Figure 1-Figure 3 The utility model provides an infusion adapter device 100, including an adapter seat 10 and a limit assembly 30. The adapter seat 10 is provided with a puncture channel 111 and an infusion channel 112 that are interconnected. A puncture soft needle 20 is arranged in the puncture channel 111. The puncture channel 111 is used to receive the puncture needle to implant the puncture soft needle 20 subcutaneously. The infusion channel 112 is used to connect the infusion pipeline and allow the liquid in the infusion pipeline to flow to the puncture soft needle 20; the limit assembly 30 includes a first limit block 31 and a second limit block 32 that are mounted in cooperation with the infusion channel 112. The first limit block 31 is used to fix the infusion pipeline, and the second limit block 32 is used to fix the first limit block 31.

[0033] In this way, when the infusion adapter 100 is in use, the infusion line extends into the infusion channel 112 through the limiting assembly 30, and then flows to the puncture channel 111 through the infusion channel 112. Since the puncture soft needle 20 in the puncture channel 111 is implanted subcutaneously, the liquid medicine in the infusion line is injected into the human body through the puncture soft needle 20, completing the infusion of the liquid medicine. The first limiting block 31 can fix the infusion line in a preset position, and ensure the good liquid flowability and air tightness between the infusion line and the adapter 10 during the multiple insertion and removal of the infusion line. Since the first limiting block 31 is fixed in the infusion channel 112 by the second limiting block 32, and the second limiting block 32 is detachable, when the second limiting block 32 is removed, the first limiting block 31 can also be removed and replaced. When the first limiting block 31 needs to be replaced (for example, it is damaged or incompatible with the infusion line), the above-mentioned setting method can make it easy to replace the first limiting block 31.

[0034] Preferably, the side of the adapter 10 that contacts the skin is defined as the lower bottom surface. In this embodiment, the puncture needle 20 is arranged perpendicular to the lower bottom surface of the adapter 10, so that the puncture needle 20 can be inserted vertically into the subcutaneous tissue. Compared with the existing commonly used oblique insertion infusion sets, since oblique insertion infusion sets need to be inserted at a certain angle, if the insertion angle is too large, it is easy to pierce the muscle layer and cause severe pain. If the angle is too small, it cannot reach the subcutaneous infusion layer, affecting the treatment effect. Therefore, the oblique insertion puncture needle 20 has higher requirements for the user. In contrast, the present application inserts the needle vertically into the subcutaneous tissue, with a fixed depth, and is more convenient to operate.

[0035] Furthermore, the puncture channel 111 and the infusion channel 112 are arranged at an angle, that is, the infusion channel 112 can be opened in another direction of the adapter 10, thereby facilitating the connection of infusion pipes and other structures. In this embodiment, the puncture channel 111 is perpendicular to the lower bottom surface, that is, perpendicular to the patient's skin during use, while the infusion channel 112 is arranged perpendicular to the puncture channel 111 and parallel to the lower bottom surface.

[0036] See Figure 5 Since the puncture channel 111 and the infusion channel 112 are arranged vertically in this embodiment, the flow direction of the liquid medicine needs to be changed from the horizontal direction of the infusion channel 112 to the vertical direction of the puncture channel 111. To this end, the present application sets a steering member 60 between the puncture channel 111 and the infusion channel 112. The steering member 60 is provided with a side hole 61 and a main hole 62. The side hole 61 is connected to the main hole 62, and the side hole 61 is connected to the infusion channel 112. The main hole 62 is connected to the puncture channel 111. The liquid medicine flows through the infusion channel 112 to the steering member 60, and the flow direction is changed in the steering member 60, and finally flows to the puncture channel 111.

[0037] Specifically, the steering member 60 is configured as a cylindrical structure and is connected to the puncture needle 20, being located at the top of the puncture needle 20. The main hole 62 is defined along the axis of the steering member 60 and is coaxial with the puncture needle 20. The side hole 61 is defined on the circumferential side of the steering member 60 and communicates with the main hole 62. Therefore, when the drug flows from the infusion channel 112 into the side hole 61, it flows along the direction of the side hole 61 into the main hole 62 and is then injected into the subcutaneous tissue through the puncture needle 20.

[0038] The outer wall of the second limiting block 32 abuts the inner wall of the infusion channel 112. A receiving cavity 3211 is defined within the second limiting block 32. The first limiting block 31 is embedded within the receiving cavity 3211 and connected to the second limiting block 32. This allows the second limiting block 32 to better secure the first limiting block 31, preventing it from falling off or shaking. Furthermore, the first limiting block 31 being located within the second limiting block 32 reduces the internal space of the adapter 10 occupied by the first limiting block 31.

[0039] Of course, it is understandable that in other embodiments, the first limit block 31 can also be set as a rectangular block, directly abutting against the side wall of the second limit block 32 away from the puncture channel 111, so as to press the second limit block 32 to achieve a limiting effect thereon, and reduce costs compared to this embodiment.

[0040] Specifically, the outer peripheral structure of the second limit block 32 is set to be rectangular, with multiple outer side surfaces perpendicular to each other. A mounting opening is opened on the adapter seat 10, and the mounting opening and the second limit block 32 are adapted to each other and are also set to be rectangular recesses, so that the second limit block 32 can be fitted therein, and the side walls of the rectangular recess can also play a guiding role for the second limit block 32.

[0041] Furthermore, the second limiting block 32 includes a main body 321 and a clamping portion 322. The accommodating cavity 3211 is provided in the main body 321, and a mounting opening 3212 communicating with the accommodating cavity 3211 is provided on a side of the main body 321 near the puncture channel 111. The clamping portion 322 is connected to the main body 321 to form the inner wall of the accommodating cavity 3211, and extends toward the puncture channel 111 through the mounting opening 3212. The clamping portion 322 is configured with a guide surface 3221 inclined relative to the mounting opening 3212. In this way, the mounting opening 3212 is provided for the assembly of the first limiting block 31, and the guide surface 3221 can guide the first limiting block 31 into the accommodating cavity 3211 when the second limiting block 32 moves toward the first limiting block 31 and is pressed, thereby preventing damage caused by interference between the first limiting block 31 and the second limiting block 32.

[0042] At the same time, at least two spaced-apart reinforcing ribs 3222 are protruded from one side of the clamping portion 322 near the middle of the accommodating cavity 3211, and the side surface of the clamping portion 322 between the two reinforcing ribs 3222 is configured as a curved surface. Thus, the reinforcing ribs 3222 reduce the contact area between the clamping portion 322 and the first limiting block 31, thereby increasing the abutting pressure between the reinforcing ribs 3222 and the first limiting block 31, thereby pressing the first limiting block 31 more tightly. The curved surface also prevents the second limiting block 32 from abrading against the first limiting block 31.

[0043] It should be explained that the middle of the accommodating cavity 3211 refers to the center position along the length, width and depth directions of the accommodating cavity 3211 , and in this embodiment, is the inner side of the clamping portion 322 .

[0044] In this embodiment, the first limiting block 31 is made of a relatively soft silicone material, thereby achieving sealing while avoiding damage to related structures such as the infusion pipeline extending into the first limiting block 31 .

[0045] Preferably, the first limit block 31 and the second limit block 32 are provided with corresponding perforations 324 that are interconnected and coaxially arranged. The infusion pipeline extends into the infusion channel 112 through the perforation 324 on the second limit block 32 and the perforation 324 on the first limit block 31, and is connected with the puncture channel 111.

[0046] Specifically, the through-holes 324 are circular holes, each located on the central axis of the first stopper 31 and the second stopper 32. Furthermore, because the first stopper 31 is made of a soft material, the through-holes 324 on the first stopper 31 are closed when the infusion line is not inserted into the first stopper 31. When the infusion line is inserted into the first stopper 31 along the second stopper 32, the soft material of the first stopper 31 automatically creates a clearance, allowing the infusion line to be inserted smoothly.

[0047] Furthermore, the adapter 10 includes a base plate 12 and a base body 13. The base body 13 is connected to the base plate 12. The base plate 12 has an upper surface 123 facing the base body 13. The upper surface 123 is provided with a first step 121. The second stopper 32 is bent on a side near the base plate 12 to form a second step 323. The second step 323 abuts the first step 121 along the plane of the upper surface 123. In this way, the second stopper 32 is fixedly connected to the adapter 10 through the clamping effect of the first step 121 and the second step 323.

[0048] Specifically, the first step 121 is provided in the middle of the base plate 12 and protrudes from the upper surface 123 to facilitate engagement with the second stopper 32. Furthermore, the side of the first step 121 facing away from the puncture channel 111 gradually slopes toward the upper surface 123, thereby forming an inclined surface structure to facilitate smooth installation of the second stopper 32 into the adapter 10.

[0049] The infusion adapter 100 also includes an infusion assembly 40, which includes a plug 41 and an infusion line. The infusion line is connected to the plug 41, which is plugged into the adapter 10. As the plug 41 is inserted into the adapter 10, the infusion line extends into the infusion channel 112. After the infusion line extends into the infusion channel 112, the liquid is then transferred through the infusion channel 112 into the puncture channel 111, and finally injected into the patient's subcutaneous tissue through the puncture needle 20.

[0050] Furthermore, the adapter 10 is provided with a limiting protrusion 122, and the plug 41 is provided with a limiting groove 4121. When the plug 41 is inserted into the adapter 10, the limiting protrusion 122 engages with the limiting groove 4121. This ensures that the plug 41 will not fall out of the adapter 10 after being plugged into the adapter 10, thus preventing the infusion line from falling out of the infusion channel 112 and avoiding medical safety issues.

[0051] Furthermore, the bottom plate 12 is defined as having an upper surface 123 facing the base 13. The insertion direction of the plug 41 is defined as a first direction, and a direction perpendicular to the first direction and parallel to the upper surface 123 is defined as a second direction. Two retaining protrusions 122 are provided, one on each side of the upper surface 123 in the second direction. The cooperation between the two retaining protrusions 122 and the retaining grooves 4121 further enhances the connection strength between the adapter 10 and the plug 41, ensuring that the plug 41 will not fall out after being inserted into the adapter 10.

[0052] In this embodiment, the cross-section of the limiting protrusion 122 is set to a triangular shape, and the outer side surfaces of the two limiting protrusions 122 that are away from each other correspond to the outer edge of the base plate 12 to form a smooth arc surface structure, which is not only convenient for processing and more beautiful, but also convenient for the clamping fit between the limiting protrusion 122 and the limiting groove 4121.

[0053] Furthermore, the limiting protrusion 122 and the base 13 are spaced apart in the direction in which the plug 41 is inserted or removed, thereby facilitating the processing of the adapter 10. Furthermore, the structure for the plug 41 and the limiting protrusion 122 to achieve the snap connection can be accommodated between the limiting protrusion 122 and the adapter 10. Furthermore, the thickness of the limiting protrusion 122 on the side closer to the base 13 is greater than that on the side farther from the base 13. It should be noted that the thickness here refers to the distance between the side of the limiting protrusion 122 farther from the base 12 and the base. This thickness setting ensures a more stable snap connection between the limiting groove 4121 and the limiting protrusion 122.

[0054] The plug 41 includes a fixed portion 411 and a movable portion 412. The movable portions 412 are connected to the fixed portion 411 and are located on both sides of the fixed portion 411 in the second direction. Both movable portions 412 have limiting grooves 4121 defined therein. The limiting grooves 4121 are defined on the movable portion 412 to prevent them from affecting the structural strength of the fixed portion 411.

[0055] Furthermore, the movable portion 412 is movably connected to the fixed portion 411 and is configured to deform and move toward the fixed portion 411 in response to an external force, and to cause the limiting protrusion 122 to disengage from the limiting groove 4121. That is, after the plug 41 is inserted into the adapter 10 and the limiting protrusion 122 is engaged with the limiting groove 4121, when the patient completes the infusion of the liquid medicine and needs to pull out the plug 41, he or she only needs to pinch the movable portions 412 on both sides of the fixed portion 411 by hand. The movable portions 412 can deform inward toward the fixed portion 411 in response to the external force. After the movable portions 412 are deformed, the abutment effect between the limiting protrusion 122 and the limiting groove 4121 is released, and the two are separated, thereby allowing the plug 41 to be detached from the adapter 10. This contact locking method is simple and quick to operate and has a wide range of applications.

[0056] Furthermore, the end of the movable portion 412 near the base 13 is configured with an inclined surface 4122. As the plug 41 is inserted into the adapter 10, the movement path of the end of the movable portion 412 at least partially overlaps with the limiting protrusion 122. In this way, at least a portion of the limiting protrusion 122 is located on the movement path of the end of the movable portion 412. Therefore, as the plug 41 is inserted into the adapter 10, the movable portion 412 moves with the plug 41 and inevitably abuts at least a portion of the limiting protrusion 122 during the movement. When the two abut, the inclined surface 4122 preferentially contacts the limiting protrusion 122. As the two move closer to each other, the inclined surface 4122 avoids the limiting protrusion 122, causing the movable portion 412 to elastically deform, allowing the plug 41 to be smoothly inserted into the adapter 10 and completed. As the plug 41 reaches the preset position, the limiting protrusion 122 has moved to the position of the limiting groove 4121, and its supporting effect on the inclined surface 4122 disappears. The movable part 412 recovers to its original state due to its elastic potential energy, thereby keeping the limiting groove 4121 and the limiting protrusion 122 engaged.

[0057] Specifically, along a third direction perpendicular to the upper surface 123 of the base plate 12, both sides of the movable portion 412 are provided with inclined surfaces 4122 and retaining grooves 4121. This means that regardless of whether the plug 41 is inserted into the adapter 10 in the front or back direction, the inclined surfaces 4122 and retaining grooves 4121 on the upper and lower sides of the thickness direction of the movable portion 412 remain effective. Therefore, when using the infusion set adapter 100, patients no longer need to worry about whether the plug 41 is inserted in the front or back direction, making it more convenient.

[0058] In addition, the fixing portion 411 is provided with two locking posts 413, which are spaced apart. The adapter 10 is provided with locking holes 131, and two locking posts 413 are provided in the locking holes 131 corresponding to the locking posts 413. As the plug 41 is inserted into the adapter 10, the two locking posts 413 are inserted into the two locking holes 131. The cooperation between the locking posts 413 and the locking holes 131 can guide the insertion direction of the plug 41, allowing the infusion line to accurately extend into the infusion channel. In this embodiment, the locking posts 413 are all configured as rectangular columnar structures, and the shape of the locking holes 131 is also correspondingly configured as rectangular holes to achieve an adaptable and guiding effect. In addition, a guide structure 4131 composed of multiple inclined surfaces is constructed at the end of the locking post 413, so that when the end of the locking post 413 abuts the edge of the locking hole 131, it can play a guiding role and allow the locking post 413 to enter smoothly.

[0059] The fixing portion 411 is further provided with a plurality of hollows 4111 , which can reduce the weight of the fixing portion 411 , reduce material costs and enhance structural strength.

[0060] The edge of the movable portion 412 is provided with a plurality of edges 4123 protruding in a direction away from the fixed portion 411. The edges are evenly spaced and extend from one side to the other side in the thickness direction of the movable portion 412. The plurality of edges 4123 can increase the friction between the operator's fingers and the movable portion 412, thereby improving the convenience and stability of the operation of the movable portion 412.

[0061] See Figure 4 The present invention also provides an infusion system, comprising the infusion set adapter 100 as described above and an insulin infusion device 50 , wherein the insulin infusion device 50 is connected to the infusion set adapter 100 .

[0062] The insulin infusion device 50 includes a power supply, a main control circuit, a drive mechanism, and a drug reservoir. The power supply provides electrical energy for the operation of the insulin infusion device 50. The main control circuit is used to control the operation of the drive mechanism to squeeze the liquid in the drug reservoir and inject it into the infusion device adapter 100 through the infusion assembly 40. The drug reservoir includes a drug reservoir cover 51, which is connected to the infusion assembly 40 via a pipeline.

[0063] The present invention provides a detachable stopper assembly 30. A first stopper 31 in the stopper assembly 30 is used to secure the infusion tube. A second stopper 32 is detachably mounted within the adapter 10 to secure the first stopper 31. The second stopper 32 is easily removable, making it easier to remove when work requirements change. Furthermore, the connection structure between the adapter 10 and the plug 41 is optimized, making the connection more stable and the connection stronger.

[0064] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An infusion set adapter, characterized in that: include: An adapter (10) is provided with a puncture channel (111) and an infusion channel (112) that are interconnected. A puncture soft needle (20) is arranged in the puncture channel (111). The puncture channel (111) is used to receive the puncture needle so as to implant the puncture soft needle (20) subcutaneously. The infusion channel (112) is used to connect the infusion line and allow the liquid in the infusion line to flow to the puncture soft needle (20). The limiting assembly (30) comprises a first limiting block (31) and a second limiting block (32) which are cooperatively mounted on the infusion channel (112), wherein the first limiting block (31) is used to fix the infusion pipeline, and the second limiting block (32) is used to fix the first limiting block (31), and the second limiting block (32) is detachably mounted in the infusion channel (112).

2. The infusion set adapter according to claim 1, characterized in that: The puncture channel (111) and the infusion channel (112) are arranged at an angle.

3. The infusion set adapter according to claim 2, characterized in that: The outer wall of the second limiting block (32) abuts against the inner wall of the infusion channel (112); a receiving cavity (3211) is provided in the second limiting block (32); the first limiting block (31) is embedded in the receiving cavity (3211) and connected to the second limiting block (32).

4. The infusion set adapter according to claim 3, characterized in that: The second limiting block (32) includes a main body (321) and a clamping portion (322), the main body (321) is provided with the accommodating cavity (3211), and a mounting opening (3212) communicating with the accommodating cavity (3211) is provided on a side of the main body (321) close to the puncture channel (111); The clamping portion (322) is connected to the main body (321) to form the inner wall of the accommodating cavity (3211), and extends toward the puncture channel (111) through the mounting opening (3212). The clamping portion (322) is configured with a guide surface (3221) inclined relative to the mounting opening (3212).

5. The infusion set adapter according to claim 4, characterized in that: At least two spaced-apart reinforcing ribs (3222) are protruded from one side of the clamping portion (322) close to the middle of the accommodating cavity (3211), and the side surface of the clamping portion (322) between the two reinforcing ribs (3222) is configured as an arc surface.

6. The infusion set adapter according to claim 1, characterized in that: The adapter seat (10) comprises a base plate (12) and a base body (13), wherein the base body (13) is connected to the base plate (12), and the base plate (12) has an upper surface (123) facing the base body (13), and a first step (121) is protruded from the upper surface (123); a side of the second limit block (32) close to the base plate (12) is bent to form a second step (323), and the second step (323) abuts against the first step (121) along the direction of the plane where the upper surface (123) is located.

7. The infusion set adapter according to claim 1, characterized in that: The infusion adapter device further includes an infusion assembly (40), the infusion assembly (40) including a plug (41) and an infusion line, the infusion line and the plug (41) are connected, the plug (41) is plugged into and matched with the adapter (10), and as the plug (41) is inserted into the adapter (10), the infusion line extends into the infusion channel (112).

8. The infusion set adapter according to claim 7, characterized in that: A limiting protrusion (122) is constructed on the adapter seat (10), and a limiting groove (4121) is provided on the plug (41); as the plug (41) is inserted into the adapter seat (10), the limiting protrusion (122) and the limiting groove (4121) are engaged with each other.

9. The infusion set adapter according to claim 8, characterized in that: The adapter seat (10) comprises a base plate (12) and a base body (13), the base body (13) is connected to the base plate (12), and the base plate (12) has an upper surface (123) facing the base body (13); The insertion direction of the plug (41) is a first direction, a direction perpendicular to the first direction and parallel to the upper surface (123) is a second direction, and there are two limiting protrusions (122), which are respectively arranged on both sides of the upper surface (123) in the second direction; The plug (41) comprises a fixed portion (411) and a movable portion (412), wherein the movable portion (412) is connected to the fixed portion (411) and is located on both sides of the fixed portion (411) in the second direction, and the limiting grooves (4121) are provided on both movable portions (412), and the limiting grooves (4121) are correspondingly engaged with the limiting protrusions (122).

10. The infusion set adapter according to claim 9, characterized in that: The movable portion (412) is movably connected to the fixed portion (411) and is configured to be able to deform and move toward the fixed portion (411) in response to an external force, and to cause the limiting protrusion (122) to escape from the limiting groove (4121).

11. The infusion set adapter according to claim 10, characterized in that: The end of the movable portion (412) close to the seat body (13) is constructed with an inclined surface (4122), and as the plug (41) is inserted into the adapter seat (10), the moving path of the end of the movable portion (412) at least partially overlaps with the limiting protrusion (122).

12. The infusion set adapter according to claim 11, characterized in that: Along a third direction perpendicular to the upper surface of the bottom plate (12), the inclined surface (4122) and the limiting groove (4121) are provided on both sides of the movable portion (412).

13. An infusion system, characterized in that: It comprises the infusion set adapter (100) according to any one of claims 1 to 12 and an insulin infusion device, wherein the insulin infusion device is connected to the infusion set adapter (100).

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