Angle-adjustable methylene blue introduction device for oral photodynamic antibacterial treatment

CN224523326UActive Publication Date: 2026-07-21CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CENT SOUTH UNIV
Filing Date
2025-08-21
Publication Date
2026-07-21

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Abstract

The utility model relates to oral cavity equipment technical field especially is a kind of angle-adjustable methylene blue lead-in device for oral cavity photodynamic antibacterial treatment, including injection tube, the bottom fixedly connected with handle of injection tube, the inner chamber slidingly connected with piston of injection tube, the one side fixedly connected with piston handle of piston.The utility model has the advantages of angle adjustment and convenient disassembly, in actual use process, by the setting of adjusting mechanism, angle adjustment can be carried out to needle tube, the injection position of needle head can be angle-adjusted according to the specific needs of user import position, methylene blue solution can be ensured to be accurately sprayed to specified position, improve work efficiency, by the setting of locking mechanism, adjusting assembly can be quickly disassembled, so that user carries out cleaning, disinfection and replacement parts, and when user needs to separate needle head and needle tube by disassembling adjusting assembly.
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Description

Technical Field

[0001] This utility model relates to the technical field of dental equipment, specifically to an adjustable-angle methylene blue delivery device for oral photodynamic antibacterial treatment. Background Technology

[0002] Dental instruments, also known as dental instruments or dental equipment, are professional tools used in the diagnosis and treatment of oral diseases. They are characterized by simple structure, no need for power, and reusability. As one of the three pillars of the oral industry, they, together with dental consumables and large equipment, constitute the basic tool system for clinical diagnosis, treatment and restoration, serving the entire cycle of oral disease prevention, treatment and functional restoration.

[0003] Due to the complex structure of the oral cavity and the fixed needle angle of traditional delivery devices, it is difficult to adapt to the delivery needs of different areas. This makes it difficult to accurately deliver methylene blue solution to the designated location, easily resulting in missed areas or uneven application, thus affecting the antibacterial effect. In addition, the components of traditional delivery devices are mostly fixedly connected, making it inconvenient to quickly disassemble for cleaning, disinfection, or replacement after treatment. This not only increases the workload of the user but may also leave residual medication or bacteria due to incomplete cleaning, affecting the hygiene of subsequent treatments. Furthermore, since the needle and syringe are connected through an adjustment component, disassembly is difficult, resulting in low operational efficiency and delaying the delivery of methylene blue solution into the oral cavity. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable-angle methylene blue delivery device for oral photodynamic antibacterial treatment, which has the advantages of angle adjustment and easy disassembly, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-angle methylene blue delivery device for oral photodynamic antibacterial treatment, comprising an injection tube, a handle fixedly connected to the bottom of the injection tube, a piston slidably connected to the inner cavity of the injection tube, a piston handle fixedly connected to one side of the piston, one end of the piston handle penetrating to the outside of the injection tube and fixedly connected to a push handle, a solution injection port connected to the top of the injection tube, a sliding sleeve fitted on the surface of the injection tube, two locking mechanisms provided on the surface of the sliding sleeve, two adjusting mechanisms fixedly connected to the surface of the sliding sleeve, a flexible tube connected to one side of the injection tube, a fixed tube connected to one end of the flexible tube, a second fixing block fitted on the surface of the fixed tube, one end of the fixed tube penetrating to one side of the second fixing block and connected to a needle tube, connecting rods fixedly connected to the top and bottom of the second fixing block, a connecting plate fitted on the surface of the connecting rod, and a limit block fixedly connected to one end of the connecting rod penetrating to one side of the connecting plate.

[0006] Furthermore, as a preferred embodiment of this utility model, the locking mechanism includes two first housings fixedly connected to the surface of the sliding sleeve. A push rod is slidably connected to one side of the inner cavity of the first housing. A locking block is fixedly connected to one end of the push rod. A first spring is sleeved on the surface of the push rod. The two ends of the first spring are fixedly connected to the locking block and the locking block, respectively. A cavity is opened on one side of the first housing. A fixing sleeve is slidably connected to the inner cavity of the cavity. One side of the locking block extends through the inner cavity of the fixing sleeve. A first fixing block is fixedly connected to one side of the fixing sleeve. One side of the first fixing block is fixedly connected to the injection tube.

[0007] Furthermore, as a preferred embodiment of this utility model, the adjusting mechanism includes two second housings fixedly connected to the sliding sleeve surfaces. A rotating rod is fixedly connected to one side of the connecting plate. One end of the rotating rod passes through the inner cavity of the second housing and is fixedly connected to a first toothed block. A second toothed block is sleeved on the surface of the rotating rod. The top of the second toothed block is fixedly connected to the second housing. The second toothed block meshes with the first toothed block. A second spring is provided at the bottom of the inner cavity of the second housing. The two ends of the second spring contact the first toothed block and the second housing, respectively.

[0008] Furthermore, as a preferred embodiment of this invention, a finger ring is fixedly connected to the top of the injection tube, and the finger ring is located on the left side of the push handle.

[0009] Furthermore, as a preferred embodiment of this utility model, one end of the push rod extends through to the outside of the first housing and is fixedly connected to a rotating block, the surface of which is provided with anti-slip texture.

[0010] Beneficial effects: The technical solution of this application has the following advantages: This utility model has the advantages of angle adjustment and easy disassembly. In actual use, the angle of the syringe can be adjusted by the setting of the adjustment mechanism. The angle of the spray position of the needle can be adjusted according to the specific position required by the user, which can ensure that the methylene blue solution can be accurately sprayed to the designated position, thus improving work efficiency. The locking mechanism can quickly disassemble the adjustment component, which is convenient for the user to clean, disinfect and replace parts. When the user needs to separate the needle from the syringe by disassembling the adjustment component, it can avoid improper disassembly due to disassembly difficulties, which may cause damage to parts, thereby reducing the risk of instrument damage caused by disassembly.

[0011] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural cross-section of the present invention. Figure 1 ; Figure 3 This is a partial structural cross-section of the present invention. Figure 2 ; Figure 4 Cross-sectional view of the locking structure of this utility model Figure 1 ; Figure 5 Cross-sectional view of the locking structure of this utility model Figure 2 ; Figure 6 This is a cross-sectional view of the adjustment structure of this utility model; Figure 7 This is a partial schematic diagram of the adjustment structure of this utility model; Figure 8 This is a partial structural cross-section of the present invention. Figure 3 ; Figure 9 This is a partial structural cross-section of the present invention. Figure 4 .

[0013] In the figure, the meanings of the various reference numerals are as follows: 1. Injection tube; 2. Handle; 3. Piston; 4. Piston handle; 5. Push handle; 6. Solution injection port; 7. Sliding sleeve; 8. Locking mechanism; 81. First housing; 82. Push rod; 83. Locking block; 84. First spring; 85. Cavity; 86. Fixing sleeve; 87. First fixing block; 9. Adjustment mechanism; 91. Second housing; 92. Rotating rod; 93. First toothed block; 94. Second toothed block; 95. Second spring; 10. Tube; 11. Fixing tube; 12. Second fixing block; 13. Needle; 14. Connecting rod; 15. Connecting plate; 16. Limiting block; 17. Finger ring; 18. Rotating block. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. To better understand the technical content of the present utility model, specific embodiments are provided and described in conjunction with the accompanying drawings. Various aspects of the present utility model are described in this disclosure with reference to the accompanying drawings, which show many illustrative embodiments. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] As attached Figure 1 To be continued Figure 9 As shown: This embodiment provides an adjustable-angle methylene blue delivery device for oral photodynamic antibacterial treatment, including an injection tube 1, a handle 2 fixedly connected to the bottom of the injection tube 1, a piston 3 slidably connected to the inner cavity of the injection tube 1, a piston handle 4 fixedly connected to one side of the piston 3, one end of the piston handle 4 penetrating to the outside of the injection tube 1 and fixedly connected to a push handle 5, a solution injection port 6 connected to the top of the injection tube 1, a sliding sleeve 7 sleeved on the surface of the injection tube 1, two locking mechanisms 8 provided on the surface of the sliding sleeve 7, two adjusting mechanisms 9 fixedly connected to the surface of the sliding sleeve 7, a flexible tube 10 connected to one side of the injection tube 1, a fixed tube 11 connected to one end of the flexible tube 10, a second fixing block 12 sleeved on the surface of the fixed tube 11, one end of the fixed tube 11 penetrating to one side of the second fixing block 12 and connected to a needle tube 13, connecting rods 14 fixedly connected to the top and bottom of the second fixing block 12, a connecting plate 15 sleeved on the surface of the connecting rods 14, one end of the connecting rods 14 penetrating to one side of the connecting plate 15 and fixedly connected to a limit block 16.

[0016] Specifically, the locking mechanism 8 includes two first housings 81 fixedly connected to the surface of the sliding sleeve 7. A push rod 82 is slidably connected to one side of the inner cavity of the first housing 81. A locking block 83 is fixedly connected to one end of the push rod 82. A first spring 84 is sleeved on the surface of the push rod 82. The two ends of the first spring 84 are fixedly connected to the 81 and the locking block 83 respectively. A cavity 85 is opened on one side of the first housing 81. A fixing sleeve 86 is slidably connected to the inner cavity of the cavity 85. One side of the locking block 83 extends through the inner cavity of the fixing sleeve 86. A first fixing block 87 is fixedly connected to one side of the fixing sleeve 86. One side of the first fixing block 87 is fixedly connected to the injection tube 1.

[0017] In this embodiment, the locking mechanism 8 is used to fix the sliding sleeve 7, preventing the sliding sleeve 7 from moving during operation, and also making it easy to disassemble the sliding sleeve 7.

[0018] Specifically, the adjusting mechanism 9 includes two second housings 91 fixedly connected to the surface of the sliding sleeve 7. A rotating rod 92 is fixedly connected to one side of the connecting plate 15. One end of the rotating rod 92 passes through the inner cavity of the second housing 91 and is fixedly connected to a first tooth block 93. A second tooth block 94 is sleeved on the surface of the rotating rod 92. The top of the second tooth block 94 is fixedly connected to the second housing 91. The second tooth block 94 meshes with the first tooth block 93. A second spring 95 is provided at the bottom of the inner cavity of the second housing 91. The two ends of the second spring 95 are in contact with the first tooth block 93 and the second housing 91, respectively.

[0019] In this embodiment, the adjustment mechanism 9 is used to adjust the angle of the connecting plate 15, so that the needle tube 13 can introduce methylene blue at different angles in the horizontal direction.

[0020] Specifically, a finger ring 17 is fixedly connected to the top of the injection tube 1, and the finger ring 17 is located on the left side of the push handle 5.

[0021] In this embodiment, the ring 17 allows the insertion device to make close contact with the user's finger, making it easy for the user to pick up the insertion device.

[0022] Specifically, one end of the push rod 82 extends through to the outside of the first housing 81 and is fixedly connected to a rotating block 18, the surface of which is provided with anti-slip texture.

[0023] In this embodiment, the contact area between the user's palm and the push rod 82 is increased by the setting of the rotating block 18, making it easier for the user to move the push rod 82.

[0024] The working principle and usage process of this utility model are as follows: The user injects the methylene blue solution to be injected into the inner cavity of the injection tube 1 through the push handle 5. By pushing the push handle 5, the push handle 5 drives the piston handle 4 to move into the inner cavity of the injection tube 1. The piston handle 4 drives the piston 3 to slide in the inner cavity of the injection tube 1, so that the methylene blue solution is squeezed from the inner cavity of the injection tube 1 into the inner cavity of the tubing 10. The solution flows from the inner cavity of the tubing 10 into the inner cavity of the fixing tube 11. Then the solution flows through the inner cavity of the fixing tube 11 to the inner cavity of the needle tube 13, and finally flows out from one end of the needle tube 13, thereby realizing the export of the methylene blue solution.

[0025] The user presses the connecting plate 15, which moves the rotating rod 92. The rotating rod 92 moves the first toothed block 93 within the inner cavity of the second housing 91, thereby releasing the fixation between the first toothed block 93 and the second toothed block 94. When the first toothed block 93 moves, it compresses the second spring 95. At this time, rotating the connecting plate 15 causes the rotating rod 92 to rotate, which in turn causes the first toothed block 93 to rotate. The rotating rod 92 causes the connecting plate 15 to move in an arc. The connecting plate 15 moves the second fixing block 12 via the connecting rod 14, which in turn moves the fixing tube 11, thereby adjusting the angle of the needle tube 13. When the angle is adjusted to a suitable level, the user stops pressing the connecting plate 15. The rebound force of the second spring 95 moves the first toothed block 93, causing it to mesh with the second toothed block 94, thus fixing the angle of the needle tube 13.

[0026] The user pulls the outward rotating block 18, which drives the push rod 82 to move. The push rod 82 drives the locking block 83 to move within the cavity of the fixed sleeve 86 and the locking block 83. When the locking block 83 moves, it compresses the first spring 84. When the locking block 83 moves completely into the cavity of the first housing 81, the fixed sleeve 86 can be disengaged from the cavity 85. The user can then remove the adjustment component by moving the sliding sleeve 7 for easy replacement.

[0027] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0028] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An adjustable-angle methylene blue delivery device for oral photodynamic antibacterial therapy, comprising an injection tube (1), characterized in that: A handle (2) is fixedly connected to the bottom of the injection tube (1). A piston (3) is slidably connected to the inner cavity of the injection tube (1). A piston handle (4) is fixedly connected to one side of the piston (3). One end of the piston handle (4) extends through to the outside of the injection tube (1) and is fixedly connected to a push handle (5). A solution injection port (6) is connected to the top of the injection tube (1). A sliding sleeve (7) is fitted on the surface of the injection tube (1). Two locking mechanisms (8) are provided on the surface of the sliding sleeve (7). Two adjusting mechanisms (9) are fixedly connected to the surface of the sliding sleeve (7). A flexible tube (10) is connected to one side of the injection tube (1), and a fixed tube (11) is connected to one end of the flexible tube (10). A second fixed block (12) is fitted on the surface of the fixed tube (11). One end of the fixed tube (11) passes through to one side of the second fixed block (12) and is connected to a needle tube (13). A connecting rod (14) is fixedly connected to the top and bottom of the second fixed block (12). A connecting plate (15) is fitted on the surface of the connecting rod (14). One end of the connecting rod (14) passes through to one side of the connecting plate (15) and is fixedly connected to a limit block (16).

2. The adjustable-angle methylene blue delivery device for oral photodynamic antibacterial therapy according to claim 1, characterized in that: The locking mechanism (8) includes two first housings (81) fixedly connected to the surface of the sliding sleeve (7). A push rod (82) is slidably connected to one side of the inner cavity of the first housing (81). A locking block (83) is fixedly connected to one end of the push rod (82). A first spring (84) is sleeved on the surface of the push rod (82). The two ends of the first spring (84) are fixedly connected to (81) and locking block (83) respectively. A cavity (85) is opened on one side of the first housing (81). A fixing sleeve (86) is slidably connected to the inner cavity of the cavity (85). One side of the locking block (83) extends into the inner cavity of the fixing sleeve (86). A first fixing block (87) is fixedly connected to one side of the fixing sleeve (86). One side of the first fixing block (87) is fixedly connected to the injection tube (1).

3. The adjustable-angle methylene blue delivery device for oral photodynamic antibacterial therapy according to claim 1, characterized in that: The adjustment mechanism (9) includes two second housings (91) fixedly connected to the surface of the sliding sleeve (7). A rotating rod (92) is fixedly connected to one side of the connecting plate (15). One end of the rotating rod (92) passes through the inner cavity of the second housing (91) and is fixedly connected to a first tooth block (93). A second tooth block (94) is sleeved on the surface of the rotating rod (92). The top of the second tooth block (94) is fixedly connected to the second housing (91). The second tooth block (94) meshes with the first tooth block (93). A second spring (95) is provided at the bottom of the inner cavity of the second housing (91). The two ends of the second spring (95) are in contact with the first tooth block (93) and the second housing (91) respectively.

4. The adjustable-angle methylene blue delivery device for oral photodynamic antibacterial therapy according to claim 1, characterized in that: A finger ring (17) is fixedly connected to the top of the injection tube (1), and the finger ring (17) is located on the left side of the push handle (5).

5. The adjustable-angle methylene blue delivery device for oral photodynamic antibacterial therapy according to claim 2, characterized in that: One end of the push rod (82) extends through the outside of the first housing (81) and is fixedly connected to a rotating block (18), the surface of which is provided with anti-slip texture.