An insulin subcutaneous injection assisting device

Abstract

An insulin subcutaneous injection auxiliary device, including a plurality of mutually articulated fixed plates, the inner side of the fixed plate is provided with extrusion anti-skid convex strip, the outer side is equipped with outer thread fixing cylinder, the outer thread fixing cylinder is slidably installed with adjusting plate, the both sides of the adjusting plate are equipped with convex plate and penetrate the notch groove of the outer thread fixing cylinder, the surface of the outer thread fixing cylinder is screwed with inner thread sleeve, the inner wall of the inner thread sleeve is equipped with concave ring matched with convex plate, the inner wall of the outer thread fixing cylinder is equipped with scale value for indicating injection depth, one side of the fixed plate is equipped with butt joint groove, the other side is equipped with butt joint convex strip, the end of the butt joint convex strip is respectively equipped with fixed bolt, mounting hole, sliding hole and positioning bolt, the mounting hole is equipped with spring, the outer end of the fixed plate is equipped with hook face magic tape and wool face magic tape; the utility model can realize effective dispersion positioning of injection site, and realizes accurate control to injection depth through adjustable structure, improves the safety and consistency of insulin injection.

Description

Technical Field

[0001] This utility model belongs to the field of insulin injection assistance technology, specifically relating to an auxiliary device for subcutaneous insulin injection. Background Technology

[0002] Currently, diabetic patients generally need to inject insulin multiple times a day via subcutaneous injection. However, in practice, there are often two main problems: First, the injection site is reused. Due to the lack of an effective positioning mechanism, patients may inject multiple times in the same site within a short period of time, which can easily cause subcutaneous induration, tissue damage, or pain, affecting treatment compliance. Second, the injection depth is difficult to control. Different patients have large differences in subcutaneous fat thickness, making it difficult to accurately adjust the injection depth under manual operation conditions, resulting in uneven drug absorption and even the problem that the drug solution may not be effectively injected into the subcutaneous tissue.

[0003] While some existing insulin injection aids aim to improve injection convenience, they generally fail to address both systematic management of the injection site and adjustable control of injection depth, and are particularly lacking in adaptability to patients with different physiological characteristics. Therefore, current insulin injection aids still have significant structural and functional deficiencies, making it difficult to fully meet clinical needs. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide an auxiliary device for subcutaneous insulin injection. This device can assist in the decentralized management of injection sites and achieve precise adjustment of injection depth, thereby solving the problems of repeated injection risk and inconsistent injection depth in current use, and thus improving the accuracy, safety and comfort of insulin injection.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for subcutaneous insulin injection, comprising multiple fixed plates hinged together, wherein symmetrical anti-slip protrusions are provided on the inner side of the fixed plates, and the anti-slip protrusions on both sides are used for anti-slip and for squeezing the skin;

[0006] An external threaded fixing cylinder is provided on the outer side of the fixing plate. The surface of the external threaded fixing cylinder is symmetrically provided with notches and grooves. An adjusting plate is slidably installed inside the external threaded fixing cylinder. A through hole is provided in the center of the surface of the adjusting plate. Protruding plates are symmetrically provided on both sides of the adjusting plate. The two protruding plates pass through the two notches and grooves respectively.

[0007] An internally threaded sleeve is screwed onto the surface of the externally threaded fixed sleeve. A concave ring is provided on the rear side of the inner wall of the internally threaded sleeve, and both of the convex plates are placed inside the concave ring.

[0008] Furthermore, the inner wall of the external threaded fixing cylinder is uniformly engraved with scale values ​​along the axis to determine the distance between the adjusting plate and the skin.

[0009] Furthermore, a mating groove is provided on one side of the fixing plate, and a mating protrusion is provided on the other side of the fixing plate, the mating protrusion being adapted to the internal dimensions of the mating groove.

[0010] Furthermore, the outermost ends of the multiple hinged fixed plates are respectively hinged with hook-and-loop fasteners and loop fasteners, which are composed of elastic band hook-and-loop fasteners.

[0011] Furthermore, positioning holes are provided on both the upper and lower surfaces of the mating groove, a fixing bolt is provided at one end of the mating protrusion, the fixing bolt is adapted to the internal size of the positioning hole, and an installation hole is provided at the other end of the mating protrusion.

[0012] Furthermore, a sliding hole is provided on one side surface of the mating protrusion, the sliding hole communicates with the interior of the mounting hole, a positioning bolt is slidably installed inside the mounting hole, the positioning bolt extends beyond the end face of the mating protrusion, the end of the positioning bolt is adapted to the internal size of the positioning hole, and a toggle bolt is vertically provided on one side of the positioning bolt, the toggle bolt passes through the sliding hole.

[0013] Furthermore, a spring is placed inside the mounting hole, with the end of the spring contacting the end of the positioning bolt, and the spring exerting an outward thrust on the positioning bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a hinged structure design with multiple fixed plates, allowing users to flexibly combine the required number of injection points according to the daily injection frequency. The docking grooves and protrusions enable quick positioning and disassembly, effectively avoiding subcutaneous tissue damage and local induration caused by repeated injection sites in traditional injection methods, thus improving injection comfort and skin health protection.

[0016] This invention features an externally threaded fixing sleeve on the outside of a fixing plate, with a sliding adjusting plate installed inside. The convex plates on both sides of the adjusting plate cooperate with the concave ring structure inside the internally threaded sleeve to achieve precise adjustment of the injection depth. By rotating the internally threaded sleeve, the adjusting plate can be driven to move axially. Combined with the scale value on the externally threaded fixing sleeve, the needle insertion depth can be adjusted according to the different subcutaneous fat thicknesses of the patients. This effectively solves the problem of uneven drug absorption caused by inaccurate depth control in the prior art, ensuring the consistency and reliability of insulin injection effects.

[0017] This invention achieves rapid locking and automatic positioning between multiple fixing plates through the synergistic effect of positioning bolts, mounting holes, actuating bolts, and springs. This improves the structural stability and ease of operation of the auxiliary device in multi-point injection management, reduces manual adjustment errors, and enables patients to achieve stable, accurate, and efficient insulin injection operations in daily use, further enhancing practicality and user compliance. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the back structure of the fixing plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the fixing plate and sleeve of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing plate of this utility model;

[0022] Figure 5 This is a schematic cross-sectional view of the installation structure of the fixed bolt of this utility model.

[0023] The components represented by each number in the attached diagram are listed below: 1. Fixing plate; 11. Mud groove; 12. Mud protrusion; 121. Fixing bolt; 122. Mounting hole; 123. Sliding hole; 13. Positioning hole; 14. Extrusion anti-slip protrusion; 15. External thread fixing cylinder; 151. Notch groove; 152. Scale value;

[0024] 2. Adjusting plate; 21. Through hole; 22. Protruding plate;

[0025] 3. Internal threaded sleeve; 31. Concave ring; 4. Locating bolt; 41. Actuating bolt; 5. Spring;

[0026] 61. Hook and loop fasteners; 62. Loose-knit fasteners. Detailed Implementation

[0027] 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.

[0028] refer to Figures 1-5As shown, an auxiliary device for subcutaneous insulin injection includes multiple hinged fixing plates 1. The fixing plates 1 are detachably connected to the fixing plates via mating grooves 11 and mating protrusions 12, allowing for the selection of different numbers of fixing plates 1 for combination to achieve multi-point positioning according to the injection frequency. The inner side of the fixing plates 1 is symmetrically provided with compression anti-slip protrusions 14, which extend along the length of the fixing plates 1 and are distributed in a strip shape. They are used to form stable support when in contact with the skin during use to prevent the device from sliding, and to improve injection stability by generating slight compression stimulation on the injection area. This structure helps patients disperse injection points and avoid subcutaneous induration or tissue damage caused by repeated injections to the same site, thereby improving the safety and comfort of insulin injection.

[0029] An externally threaded fixing cylinder 15 is provided on the outer side of the fixing plate 1. The externally threaded fixing cylinder 15 has a hollow structure and is integrally formed with the fixing plate 1 or fixedly installed by snap-fit. The surface of the externally threaded fixing cylinder 15 has symmetrical notches 151, which penetrate the outer wall to provide a channel for the adjustment structure. An adjustment plate 2 is slidably installed inside the externally threaded fixing cylinder 15. The adjustment plate 2 has a circular or cylindrical structure and can move axially to adjust the injection depth. A through hole 21 is provided in the center of the surface of the adjustment plate 2. The through hole 21 is a needle channel with a diameter compatible with commonly used insulin injection needles to ensure accurate contact with the skin surface after passing through the adjustment plate 2 during injection. The two sides of the adjustment plate 2 have symmetrically arranged protruding plates 22. The protruding plates 22 are used to connect the concave ring structure and guide the adjustment plate 2 to maintain axial stability during adjustment. The two protruding plates 22 penetrate the two notches 151 respectively and can move synchronously along the guide direction under the drive of the internally threaded sleeve 3 to avoid deviation and jamming.

[0030] An internally threaded sleeve 3 is screwed onto the surface of the externally threaded fixing sleeve 15. The internally threaded sleeve 3 is a cylindrical component and is connected to the externally threaded fixing sleeve 15 through a threaded structure. A concave ring 31 is provided on the rear side of the inner wall of the internally threaded sleeve 3. The concave ring 31 is formed by recessing along the inner wall of the ring and is tightly fitted with the end of the convex plate 22, thereby driving the adjusting plate 2 to generate axial displacement when the internally threaded sleeve 3 rotates. This structure, combined with the scale device, can achieve precise control of the injection depth, which is particularly suitable for patients with different subcutaneous fat thicknesses, and realizes personalized injection management to ensure the consistency of insulin injection.

[0031] refer to Figures 2-4 As shown, the inner wall of the external threaded fixing cylinder 15 is uniformly engraved with scale values ​​152 along the axis. The scale values ​​152 consist of numerical values ​​and scale lines, and are used to display the axial displacement of the adjusting plate 2 relative to the fixing plate 1 in real time. By comparing the scale values ​​152 with the relative position of the adjusting plate 2, the distance between the adjusting plate 2 and the skin at the injection site can be determined, thereby guiding the patient to adjust the depth according to the thickness of their own subcutaneous fat layer, ensuring a more accurate and safer injection effect.

[0032] refer to Figures 1-3 As shown, a docking groove 11 is provided on one side of the fixing plate 1. The docking groove 11 is a rectangular groove structure, and its inner wall is provided with positioning holes 13 for precise connection with the docking protrusion 12. The docking protrusion 12 is provided on the other side of the fixing plate 1. The docking protrusion 12 is adapted to the internal size of the docking groove 11, which can realize quick insertion and positioning. This design can achieve a stable connection between multiple fixing plates 1, adapt to the need for uniform distribution of injection points in multiple injection scenarios, thereby avoiding adverse reactions caused by concentrated injection sites.

[0033] refer to Figure 1 As shown, the outermost ends of the multiple hinged fixing plates 1 are respectively hinged with hook-and-loop fasteners 61 and loop fasteners 62. The hook-and-loop fasteners 61 and loop fasteners 62 are respectively fixed to the outer ends of adjacent fixing plates 1. The fasteners are connected by elastic bands to form a closed structure, which can adjust the tightness according to the circumference of the wearing part, making it easy to quickly disassemble and reposition. At the same time, it enhances the adaptability and fixation stability of the device, making it suitable for the daily injection wearing needs of users of different body types in the abdomen, thighs and other parts.

[0034] refer to Figure 3 and Figure 5 The mating groove 11 has positioning holes 13 on both the upper and lower surfaces. The positioning holes 13 are circular through holes and are symmetrically distributed on the inner wall of the groove. They are used to limit and position the fixing bolt 121 during assembly to ensure a stable connection. One end of the mating protrusion 12 is provided with a fixing bolt 121. The fixing bolt 121 protrudes from the surface of the mating protrusion 12 and can be inserted into the corresponding positioning hole 13 to form a preliminary limiting and positioning structure. The other end of the mating protrusion 12 has an installation hole 122. The installation hole 122 is connected to the fixing bolt 121 and serves as the installation cavity for the positioning bolt 4, which is used to achieve further locking and unlocking control.

[0035] refer to Figure 5 As shown, a sliding hole 123 is provided on one side surface of the mating protrusion 12. The sliding hole 123 is a longitudinal through groove structure that passes through the mounting hole 122, providing a moving path for the actuating bolt 41. A positioning bolt 4 is slidably installed inside the mounting hole 122. The positioning bolt 4 has a columnar structure, with its end extending out of the end of the mating protrusion 12 and matching the positioning hole 13. An actuating bolt 41 is vertically provided on one side of the positioning bolt 4. The actuating bolt 41 passes through the sliding hole 123 and forms an external manual control structure, which is used to push the positioning bolt 4 to achieve retraction and release during assembly and disassembly, ensuring the assembly efficiency and structural stability of the mating components.

[0036] refer to Figure 5A spring 5 is placed inside the mounting hole 122. The spring 5 is a helical compression spring and is vertically installed at the bottom of the mounting hole 122. The end of the spring 5 is in contact with the end of the positioning bolt 4, and always applies an external pushing force to the positioning bolt 4. When the actuating bolt 41 is released, the spring 5 can push the end of the positioning bolt 4 to automatically embed into the corresponding positioning hole 13, forming a stable locking structure. This mechanism realizes the automatic positioning and locking function of multiple fixing plates 1, which improves the safety and convenience of module combination, reduces the risk of misoperation, and enhances the user experience.

[0037] The working principle of this utility model is as follows: First, select elastic bands of different lengths according to the injection position, and fix multiple fixing plates 1 by attaching hook and loop fasteners 61 and loose hook and loop fasteners 62. Then, select an equal number of fixing plates 1 to hinge together according to the number of injections per day, so as to position multiple injection positions per day and prevent discomfort caused by repeated injections at a single point.

[0038] Rotating the internal threaded sleeve 3 allows the internal threaded sleeve 3 to move along the axis through the threaded engagement with the external threaded fixed sleeve 15. Since the end of the convex plate 22 is placed inside the concave ring 31, the internal threaded sleeve 3 can drive the adjusting plate 2 to move axially when it rotates. During the movement, the through hole 21 remains in the center position. By observing the position of the adjusting plate 2 and the scale value 152, the distance between the adjusting plate 2 and the injection skin can be determined. At this time, the injection depth of the needle can be adjusted according to the subcutaneous fat thickness of different patients. For people with thicker subcutaneous fat, the distance between the adjusting plate 2 and the skin can be shortened, and the injection needle can penetrate deeper. Conversely, for people with thinner subcutaneous fat, the distance between the adjusting plate 2 and the skin can be increased to reduce the penetration depth, thereby improving the practicality of the device and ensuring that the injection depth is consistent for the same patient each time.

[0039] If injections are performed three times a day, three fixing plates 1 are selected and hinged together. During docking, the docking protrusion 12 is inserted into the docking groove 11, and the fixing bolt 121 is inserted into the positioning hole 13 at the bottom. Then, the actuating bolt 41 is moved so that the positioning bolt 4 is retracted into the mounting hole 122. After the docking protrusion 12 is fully inserted into the docking groove 11, the actuating bolt 41 is released. Due to the elastic force of the spring 5, the end of the positioning bolt 4 is inserted into another positioning hole 13 to achieve docking installation.

[0040] 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. An auxiliary device for subcutaneous insulin injection, characterized in that: It includes multiple fixed plates (1) that are hinged to each other. The fixed plates (1) are symmetrically provided with compression anti-slip ridges (14) on their inner sides. The compression anti-slip ridges (14) on both sides are used to prevent slipping and to compress the skin. The outer side of the fixing plate (1) is provided with an external threaded fixing cylinder (15). The surface of the external threaded fixing cylinder (15) is symmetrically provided with notch grooves (151). An adjusting plate (2) is slidably installed inside the external threaded fixing cylinder (15). A through hole (21) is provided in the center of the surface of the adjusting plate (2). The two sides of the adjusting plate (2) are symmetrically provided with protruding plates (22). The two protruding plates (22) pass through the two notch grooves (151) respectively. The surface of the external threaded fixed cylinder (15) is screwed with an internal threaded sleeve (3), and a concave ring (31) is provided on the rear side of the inner wall of the internal threaded sleeve (3), and the two protruding plates (22) are placed inside the concave ring (31).

2. The auxiliary device for subcutaneous insulin injection according to claim 1, characterized in that: The inner wall of the external threaded fixing cylinder (15) is uniformly engraved with scale values ​​(152) along the axis, which are used to determine the distance between the adjusting plate (2) and the skin.

3. The auxiliary device for subcutaneous insulin injection according to claim 1, characterized in that: The fixing plate (1) has a mating groove (11) on one side and a mating protrusion (12) on the other side. The mating protrusion (12) is adapted to the internal size of the mating groove (11).

4. The auxiliary device for subcutaneous insulin injection according to claim 1, characterized in that: The outermost ends of the multiple hinged fixing plates (1) are respectively hinged with hook-and-loop fasteners (61) and loop fasteners (62), which are composed of elastic band hook-and-loop fasteners.

5. The auxiliary device for subcutaneous insulin injection according to claim 3, characterized in that: The upper and lower surfaces of the docking groove (11) are provided with positioning holes (13), and one end of the docking protrusion (12) is provided with a fixing bolt (121). The fixing bolt (121) is adapted to the internal size of the positioning hole (13), and the other end of the docking protrusion (12) is provided with an installation hole (122).

6. The auxiliary device for subcutaneous insulin injection according to claim 5, characterized in that: A sliding hole (123) is provided on one side surface of the mating protrusion (12). The sliding hole (123) is connected to the interior of the mounting hole (122). A positioning bolt (4) is slidably installed inside the mounting hole (122). The positioning bolt (4) extends beyond the end face of the mating protrusion (12). The end of the positioning bolt (4) is adapted to the internal size of the positioning hole (13). A toggle bolt (41) is vertically provided on one side of the positioning bolt (4). The toggle bolt (41) passes through the sliding hole (123).

7. The auxiliary device for subcutaneous insulin injection according to claim 6, characterized in that: A spring (5) is placed inside the mounting hole (122). The end of the spring (5) contacts the end of the positioning bolt (4), and the spring (5) exerts an outward thrust on the positioning bolt (4).

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