A precise positioning joint cavity medicine injection guiding auxiliary device

Abstract

The utility model discloses a kind of accurate positioning joint cavity medicine injection guiding auxiliary devices, it relates to the technical field of medicine injection, the accurate positioning joint cavity medicine injection guiding auxiliary device, including support seat, support seat is installed with placing piece, the inside fixed connection of placing piece has air bag assembly, placing pipe is set on the placing piece by position adjusting assembly, the position adjusting assembly is used to adjust the position of injector, and the placing pipe is used to place injector;The placing piece includes fixed frame and support piece, the fixed frame is fixedly connected with support piece by screw, and the position adjusting assembly is installed at the top of fixed frame;The support piece includes support part and two limit parts, two The limit parts are symmetrically fixedly connected at the top of support part, and the support part is connected with support seat, solve the problem that injector position is difficult to flexibly adjust, unstable placement during injection process, and lack of effective fixation to patient's limbs.

Description

Technical Field

[0001] This utility model relates to the field of drug injection technology, specifically to a precise positioning joint cavity drug injection guidance and assistance device. Background Technology

[0002] Osteoarthritis of the knee (OA) is a degenerative joint disease characterized primarily by damage to the articular cartilage. Its main clinical manifestations include knee pain, swelling, deformity, and functional impairment, severely impacting patients' daily lives. Level Ia evidence-based medicine suggests that intra-articular injection of sodium hyaluronate is a safe and effective treatment for osteoarthritis. Due to its simple injection technique and high safety profile, it has been widely used in hospitals and communities.

[0003] Chinese utility model patent CN213250177U discloses a fixator for intra-articular drug injection in the knee joint, comprising a base, a thigh support plate, a thigh support plate seat, a thigh support plate angle adjustment device, an arc-shaped knee support plate assembly, a calf support plate, a calf support plate seat, a first calf support plate angle adjustment device, and a second calf support plate angle adjustment device. The base is provided with a thigh support plate seat bracket. The thigh support plate angle adjustment device, the first calf support plate angle adjustment device, and the second calf support plate angle adjustment device are mounted on the base. The thigh support plate seat is hinged to the thigh support plate seat bracket. The thigh support plate seat is mounted on the power output end of the thigh support plate angle adjustment device and the thigh support plate seat. The arc-shaped knee support plate assembly is hinged at both ends to the thigh support plate seat and the calf support plate, respectively. The calf support plate seat is mounted on the power output end of the first calf support plate angle adjustment device and the second calf support plate angle adjustment device, and the calf support plate is mounted on the calf support plate seat.

[0004] However, existing intra-articular drug injection devices have problems such as difficulty in flexibly adjusting the syringe position, unstable placement, and lack of effective fixation of the patient's limbs during injection. Utility Model Content

[0005] This invention provides a precise positioning joint cavity drug injection guidance auxiliary device to solve the problems of difficulty in flexibly adjusting the position of the syringe, unstable placement, and lack of effective fixation of the patient's limb during the injection process.

[0006] This utility model provides the following technical solution: a precise positioning joint cavity drug injection guidance auxiliary device, including a support base, a placement component installed on the support base, an airbag assembly fixedly connected inside the placement component, and a placement tube provided on the placement component through a position adjustment component. The position adjustment component is used to adjust the position of the syringe, and the placement tube is used to place the syringe. The placement component includes a fixing frame and a support component, the fixing frame and the support component are fixedly connected by screws, and the position adjustment component is installed on the top of the fixing frame. The support component includes a support part and two limiting parts, the two limiting parts are symmetrically fixedly connected to the top of the support part, and the support part is connected to the support base.

[0007] As a preferred embodiment of this utility model, the support base includes a fixed base and a lifting component. A columnar pile is fixedly connected to the top of the fixed base, and the columnar pile is connected to the lifting component through a height adjustment assembly. The lifting component is fixedly connected to the support part.

[0008] In a preferred embodiment of this invention, the height adjustment assembly includes a threaded rod, a lifting member fixedly connected to one end of the threaded rod, a first insertion groove formed at the top of the columnar pile, and the surface of the threaded rod movably connected to the inner wall of the first insertion groove; a second insertion groove is also formed at the top of the columnar pile, an insertion rod is fixedly connected to the bottom of the lifting member, and the surface of the insertion rod movably connected to the inner wall of the second insertion groove; a threaded ring is movably connected to the top of the columnar pile via a connecting pipe, and the threaded ring is threadedly connected to the threaded rod.

[0009] As a preferred embodiment of the present invention, the airbag assembly includes a rubber air bag and an inflation pump. The rubber air bag is fixedly connected to the surface of the limiting part, and an air tube is fixedly connected to the air outlet of the inflation pump. The air tube is fixedly connected through the limiting part and fixedly connected to the rubber air bag.

[0010] As a preferred technical solution of this utility model, the support member further includes a transition portion, which is integrally formed with the support portion, and an elastic limiting plate is fixedly connected to the top of the limiting portion.

[0011] In a preferred embodiment of this invention, the position adjustment assembly includes a limiting rod, which is fixedly connected to the top of the fixing frame. A swinging member is movably sleeved on the surface of the limiting rod, and a fastening screw is movably inserted through the swinging member. A threaded groove is formed on the surface of the limiting rod, and the fastening screw is threadedly connected to the threaded groove. A telescopic rod is movably connected inside the swinging member, and the end of the telescopic rod is connected to the placement tube through a coupling assembly. A positioning screw is threadedly connected to the surface of the swinging member, and the positioning screw is threaded through the swinging member and abuts against the telescopic rod.

[0012] As a preferred technical solution of this utility model, the coupling assembly includes a first T-shaped plate and a second T-shaped plate. The first T-shaped plate is fixedly connected to the end of the telescopic rod. The first T-shaped plate and the second T-shaped plate are fixedly connected by screws. A ball cover is fixedly connected to the second T-shaped plate. The inner sidewall of the ball cover is movably connected to the surface of the rotating ball. The rotating ball is fixedly connected to the placement tube through a connecting column.

[0013] Compared with the prior art, this utility model provides a precise positioning joint cavity drug injection guidance auxiliary device, which has the following beneficial effects:

[0014] The placement component on the support base is securely connected to the support component by screws through a fixing frame. The support part is connected to the support base, and the limiting part is symmetrical to the top of the support part to ensure the stability of the overall structure. The air bladder component inside the placement component can assist in fixation, the position adjustment component can flexibly change the position of the syringe, and the placement tube facilitates the placement of the syringe. All components work together to greatly facilitate the injection operation and improve the injection accuracy and applicability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the fixing bracket of this utility model.

[0017] Figure 3 This is a schematic diagram of the rotating ball structure of this utility model.

[0018] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0019] Figure 5 This is a schematic diagram of the threaded ring structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the first insertion slot of this utility model.

[0021] Figure 7 This is a schematic diagram of the limiting rod structure of this utility model.

[0022] In the diagram: 1. Support base; 101. Fixed base; 102. Lifting component; 2. Placement tube; 3. Laser emitter; 4. Fixing frame; 5. Support component; 501. Support part; 502. Limiting part; 6. Column pile; 7. Threaded rod; 8. First insertion slot; 9. Second insertion slot; 10. Insertion rod; 11. Threaded ring; 12. Rubber air bag; 13. Air pump; 14. Air pipe; 15. Transition part; 16. Elastic limiting plate; 17. Limiting rod; 18. Swinging component; 19. Fastening screw; 20. Threaded groove; 21. Telescopic rod; 22. Positioning screw; 23. First T-shaped plate; 24. Second T-shaped plate; 25. Ball cover; 26. Rotating ball. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-7 This utility model discloses a precise positioning joint cavity drug injection guidance auxiliary device, including a support base 1, on which a placement component is installed. An airbag assembly is fixedly connected inside the placement component. A placement tube 2 is provided on the placement component through a position adjustment component. The position adjustment component is used to adjust the position of the syringe, and the placement tube 2 is used to place the syringe. The placement component includes a fixing frame 4 and a support component 5. The fixing frame 4 and the support component 5 are fixedly connected by screws. The position adjustment component is installed on the top of the fixing frame 4. The support component 5 includes a support part 501 and two limiting parts 502. The two limiting parts 502 are symmetrically fixedly connected to the top of the support part 501. The support part 501 is connected to the support base 1.

[0025] Specifically, the support base 1 includes a fixed base 101 and a lifting component 102. A columnar pile 6 is fixedly connected to the top of the fixed base 101. The columnar pile 6 is connected to the lifting component 102 through a height adjustment assembly. The lifting component 102 is fixedly connected to the support part 501.

[0026] The height adjustment assembly includes a threaded rod 7, and the lifting component 102 is fixedly connected to one end of the threaded rod 7. The top of the columnar pile 6 is provided with a first insertion groove 8, and the surface of the threaded rod 7 is movably connected to the inner wall of the first insertion groove 8. The top of the columnar pile 6 is also provided with a second insertion groove 9, and the bottom of the lifting component 102 is fixedly connected with an insertion rod 10, the surface of the insertion rod 10 being movably connected to the inner wall of the second insertion groove 9. The top of the columnar pile 6 is movably connected with a threaded ring 11 through a connecting pipe, and the threaded ring 11 is threadedly connected to the threaded rod 7.

[0027] In this embodiment, the height of the lifting component 102 can be adjusted by rotating the threaded ring 11 and the threaded rod 7 as needed, thereby adjusting the height of the placement component. The insertion rod 10 and the second insertion slot 9 serve as guides and limiters.

[0028] Specifically, the airbag assembly includes a rubber air bag 12 and an air pump 13. The rubber air bag 12 is fixedly connected to the surface of the limiting part 502. An air tube 14 is fixedly connected to the air outlet of the air pump 13. The air tube 14 is fixedly connected through the limiting part 502 and fixedly connected to the rubber air bag 12.

[0029] In this embodiment, gas is injected into the rubber air bag 12 through the air tube 14 by squeezing the air pump 13, causing the rubber air bag 12 to expand, thereby squeezing the lower leg and achieving fixation.

[0030] Specifically, the support member 5 also includes a transition portion 15, which is integrally formed with the support portion 501, and an elastic limiting plate 16 is fixedly connected to the top of the limiting portion 502.

[0031] In this embodiment, the elastic limiting plate 16 can initially contact the lower leg, playing a preliminary fixing role.

[0032] Specifically, the position adjustment assembly includes a limiting rod 17, which is fixedly connected to the top of the fixing frame 4. A swing member 18 is movably sleeved on the surface of the limiting rod 17. A fastening screw 19 is movably disposed through the swing member 18. A threaded groove 20 is formed on the surface of the limiting rod 17, and the fastening screw 19 is threadedly connected to the threaded groove 20. A telescopic rod 21 is movably connected inside the swing member 18. The end of the telescopic rod 21 is connected to the placement tube 2 through a coupling assembly. A positioning screw 22 is threadedly connected to the surface of the swing member 18. The positioning screw 22 is threaded through the swing member 18 and abuts against the telescopic rod 21.

[0033] In this embodiment, the fastening screw 19 can be rotated as needed to disengage it from the swing member 18, allowing the swing member 18 to rotate around the limiting rod 17 and thus adjust the angle. Afterwards, disengaging the positioning screw from the telescopic rod 21 allows adjustment of the position of the placement tube 2 relative to the swing member 18.

[0034] Specifically, the coupling assembly includes a first T-shaped plate 23 and a second T-shaped plate 24. The first T-shaped plate 23 is fixedly connected to the end of the telescopic rod 21. The first T-shaped plate 23 and the second T-shaped plate 24 are fixedly connected by screws. A ball cover 25 is fixedly connected to the second T-shaped plate 24. The inner sidewall of the ball cover 25 is movably connected to the surface of the rotating ball 26. The rotating ball 26 is fixedly connected to the placement tube 2 through a connecting column.

[0035] In this embodiment, the angle of the placement tube 2 can be further adjusted by the ball cover 25 and the rotating ball 26. Before injection, the needle insertion position is marked in advance, and the laser emitter 3 is activated. There are four laser emitters 3, and the mark is located at the center of the four laser irradiation points. The center position corresponds to the center of the placement tube 2. The inner diameter of the placement tube 2 is adapted to the diameter of the syringe. The syringe is passed through the placement tube 2 from top to bottom, so that the syringe can accurately enter the joint cavity through the insertion position, thereby injecting the drug.

[0036] The working principle and usage process of this utility model are as follows: First, remove the fixing frame 4 from the support member 5. Then, rotate the threaded ring 11 as needed. The height of the lifting member 102 can be adjusted by rotating the threaded ring 11 and the threaded rod 7, thereby adjusting the height of the placement member. The patient places their lower leg on the support part 501, with the transition part 15 located at the connection between the thigh and lower leg, exposing the knee joint. Then, install the fixing frame 4 onto the support member 5. By squeezing the air pump 13, gas is injected into the rubber air bag 12 through the air tube 14, causing the rubber air bag 12 to expand, thereby compressing the lower leg and achieving fixation.

[0037] Rotate the fastening screw 19 as needed to disengage it from the swing member 18. The swing member 18 can then rotate around the limiting rod 17 to adjust the angle. Next, disengage the positioning screw from the telescopic rod 21 to adjust the position of the placement tube 2 relative to the swing member 18. The angle of the placement tube 2 can be further adjusted using the ball cover 25 and the rotating ball 26. Before injection, mark the needle insertion point. Activate the laser emitter 3 (four laser emitters are provided). Position the mark at the center of the four laser irradiation points, corresponding to the center of the placement tube 2. The inner diameter of the placement tube 2 matches the diameter of the syringe. Pass the syringe through the placement tube 2 from top to bottom, ensuring accurate insertion into the joint cavity for drug injection.

[0038] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precise positioning joint cavity drug injection guidance auxiliary device, comprising a support base (1), characterized in that: A placement component is installed on the support base (1). An airbag assembly is fixedly connected inside the placement component. A placement tube (2) is provided on the placement component through a position adjustment component. The position adjustment component is used to adjust the position of the syringe. The placement tube (2) is used to place the syringe. A laser emitter (3) is fixedly connected to the placement tube (2). The placement component includes a fixing frame (4) and a support member (5), the fixing frame (4) and the support member (5) are fixedly connected by screws, and the position adjustment component is installed on the top of the fixing frame (4); The support member (5) includes a support part (501) and two limiting parts (502). The two limiting parts (502) are symmetrically fixedly connected to the top of the support part (501). The support part (501) is connected to the support base (1).

2. The precise positioning joint cavity drug injection guidance auxiliary device according to claim 1, characterized in that: The support base (1) includes a fixed base (101) and a lifting component (102). A columnar pile (6) is fixedly connected to the top of the fixed base (101). The columnar pile (6) is connected to the lifting component (102) through a height adjustment assembly. The lifting component (102) is fixedly connected to the support component (501).

3. The precise positioning joint cavity drug injection guidance auxiliary device according to claim 2, characterized in that: The height adjustment assembly includes a threaded rod (7), the lifting component (102) is fixedly connected to one end of the threaded rod (7), the top of the column (6) is provided with a first insertion groove (8), and the surface of the threaded rod (7) is movably connected to the inner wall of the first insertion groove (8). The top of the column pile (6) is also provided with a second insertion groove (9), and the bottom of the lifting component (102) is fixedly connected with an insertion rod (10), and the surface of the insertion rod (10) is movably connected to the inner wall of the second insertion groove (9). The top of the column pile (6) is movably connected to a threaded ring (11) via a connecting pipe, and the threaded ring (11) is threadedly connected to the threaded rod (7).

4. The precise positioning joint cavity drug injection guidance auxiliary device according to claim 1, characterized in that: The airbag assembly includes a rubber air bag (12) and an air pump (13). The rubber air bag (12) is fixedly connected to the surface of the limiting part (502). An air tube (14) is fixedly connected to the air outlet of the air pump (13). The air tube (14) is fixedly connected through the limiting part (502) and fixedly connected to the rubber air bag (12).

5. The precise positioning joint cavity drug injection guidance auxiliary device according to claim 1, characterized in that: The support member (5) also includes a transition part (15), which is integrally formed with the support part (501), and an elastic limiting plate (16) is fixedly connected to the top of the limiting part (502).

6. The precise positioning joint cavity drug injection guidance auxiliary device according to claim 1, characterized in that: The position adjustment assembly includes a limiting rod (17), which is fixedly connected to the top of the fixing frame (4). A swinging member (18) is movably sleeved on the surface of the limiting rod (17). A fastening screw (19) is movably passed through the swinging member (18). A threaded groove (20) is opened on the surface of the limiting rod (17), and the fastening screw (19) is threadedly connected to the threaded groove (20). The swing member (18) is internally connected to a telescopic rod (21), and the end of the telescopic rod (21) is connected to the placement tube (2) via a coupling assembly; The surface of the swing member (18) is threaded with a positioning screw (22), which thread through the swing member (18) and abuts against the telescopic rod (21).

7. The precise positioning joint cavity drug injection guidance auxiliary device according to claim 6, characterized in that: The coupling assembly includes a first T-shaped plate (23) and a second T-shaped plate (24). The first T-shaped plate (23) is fixedly connected to the end of the telescopic rod (21). The first T-shaped plate (23) and the second T-shaped plate (24) are fixedly connected by screws. A ball cover (25) is fixedly connected to the second T-shaped plate (24). The inner sidewall of the ball cover (25) is movably connected to the surface of the rotating ball (26). The rotating ball (26) is fixedly connected to the placement tube (2) through a connecting column.

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