Lower jaw distraction device for mouth rehabilitation

Abstract

The lower jaw distraction device comprises a distraction device body, a fixing rod, a two-way lead screw and a distraction plate, bottom plates are arranged at the four corners of the bottom of the distraction device body, the two-way lead screw is arranged on one side of the interior of the distraction device body, the two ends of the two-way lead screw are each sleeved with a movable sleeve, and the two ends of the two-way lead screw are each sleeved with a movable sleeve. Fixing rods are fixed to one sides of the movable sleeves, opening plates are arranged on one sides of the fixing rods, the sides, close to the fixing rods, of the opening plates are connected with the fixing rods through mounting pieces, and a handle is arranged on one side of one end of the opening device body. The distraction device body, the mounting piece, the bidirectional lead screw, the handle, the movable sleeve, the fixed rod, the mounting piece and the distraction plate are installed, the bidirectional lead screw can be driven to rotate by rotating the handle, the distraction plate is driven to distraction the lower jaw of a patient, the structural stability is better, meanwhile, the distraction force can be adjusted according to the oral cavity condition of the patient, and the distraction effect is better. And different use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of oral restoration, in particular to a mandibular expansion device for oral restoration. Background Art

[0002] Oral restoration, commonly known as tooth replacement, is mainly aimed at the treatment of tooth defects and missing teeth, such as inlays, full crowns, dentures, etc. It also includes the use of artificial restorations to treat periodontal disease, temporomandibular joint disease and maxillofacial tissue defects, such as bite plates, periodontal splints, prostheses, artificial eyes, artificial ears, artificial noses, etc. Oral restoration is to restore and improve the patient's oral function and morphology through the reasonable design and production of various restorations, so as to ensure the health of the patient's oral organs and the whole body.

[0003] During oral restoration, a distraction device is needed to distract the patient's lower jaw to better expose the oral cavity. A general distraction device places two distraction plates in the patient's mouth and uses tension to open the patient's lower jaw. However, the distraction plates are not conducive to automatic position adjustment, so the distraction force cannot be adjusted according to the size of the patient's mouth. There are limitations in use and low adaptability. Utility Model Content

[0004] The purpose of the utility model is to provide a mandibular spreading device for oral restoration to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mandibular distraction device for oral restoration, comprising a distraction device body, a fixed rod, a bidirectional screw and a distraction plate, wherein base plates are arranged at the four corners of the bottom of the distraction device body, and a bidirectional screw is arranged on one side inside the distraction device body, movable sleeves are arranged at both ends of the bidirectional screw, a fixed rod is fixed on one side of the movable sleeve, and a distraction plate is arranged on one side of the fixed rod, a side of the distraction plate close to the fixed rod is connected to the fixed rod through a mounting piece, a handle is arranged on one side of one end of the distraction device body, and one end of the handle is connected to the bidirectional screw.

[0006] Preferably, a guide rod is provided on a side of the main body of the expansion device away from the bidirectional screw rod, both ends of the guide rod are sleeved with guide sleeves, and one side of the guide sleeve is connected to the fixed rod.

[0007] Preferably, the base plate is provided with mounting holes, and fixing bolts are arranged inside the mounting holes.

[0008] Preferably, a sleeve is provided on the top of the base plate, and a bracket is sleeved inside the sleeve, screw holes are evenly opened on the bracket, reserved holes are opened on the sleeve, and the reserved holes and the screw holes are connected and locked by fasteners.

[0009] Preferably, a reserved groove is provided on the mounting parts, and a pull rod is vertically provided inside the reserved groove, a handle is provided at the top of the pull rod, and a limiting block is provided at one end of the pull rod close to the fixed rod, and the limiting grooves are evenly distributed on one side of the fixed rod close to the limiting block.

[0010] Preferably, silicone protrusions are evenly arranged on one side of the expansion plate, and the expansion plate is symmetrically distributed with respect to the expansion device body.

[0011] Preferably, a pressure plate is evenly arranged inside the reserved groove through a return spring, and one end of the pressure plate is connected to the pull rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The mandibular distraction device for oral rehabilitation is equipped with a distraction device body, a mounting part, a bidirectional screw, a handle, a movable sleeve, a fixed rod, a mounting part and a distraction plate. After the patient lies on the treatment bed, the distraction device body is fixed to the treatment bed outside the patient's head through the bottom plate, so that the distraction plate can be extended into the patient's oral cavity at the upper and lower ends. By turning the handle, the bidirectional screw can be driven to rotate, so that the movable sleeve moves along the bidirectional screw, driving the distraction plate to distract the patient's mandible. The structure has better stability and can adjust the distraction force according to the patient's oral condition to meet different usage requirements.

[0014] (2) The mandibular distraction device for oral rehabilitation is equipped with a mounting part, a reserved groove, a pressure plate, a reset spring, a pull rod, a handle, a limit block and a limit groove. The pull rod is pulled so that the pressure plate compresses the reset spring in the reserved groove. Then, the mounting part and the fixed rod are inserted into the corresponding position. The pull rod is loosened so that the limit block is embedded in the limit groove provided on the fixed rod. Thus, the distraction plate can be quickly installed and disassembled, which is convenient for subsequent replacement and cleaning.

[0015] (3) The mandibular distraction device for oral rehabilitation is installed with a bracket, a sleeve, a screw, a reserved hole and a fastener. The screw holes at different positions on the bracket correspond to the reserved holes on the sleeve and are locked and fixed by the fasteners. The height position of the distraction device body can be adjusted according to the condition of the patient's head, thereby adjusting the position of the distraction plate inserted into the patient's mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 2 This is a front view structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the side cross-sectional structure of the support plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the side cross-sectional structure of the mounting member of the utility model;

[0020] Figure 5 This is a schematic diagram of the support structure of the utility model.

[0021] In the figure: 1. main body of the expansion device; 2. guide rod; 3. bottom plate; 4. fixing rod; 5. limiting groove; 6. handle; 7. bidirectional screw rod; 8. movable sleeve; 9. mounting hole; 10. mounting part; 11. expansion plate; 12. guide sleeve; 13. sleeve; 14. bracket; 15. pull rod; 16. silicone protrusion; 17. reset spring; 18. pressure plate; 19. limiting block; 20. handle; 21. reserved groove; 22. screw hole; 23. reserved hole; 24. fastener; 25. fixing bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides an embodiment: a mandibular expansion device for oral repair, comprising an expansion device body 1, a fixing rod 4, a bidirectional screw rod 7 and an expansion plate 11, a bottom plate 3 is provided at the four corners of the bottom of the expansion device body 1, a mounting hole 9 is provided on the bottom plate 3, and a fixing bolt 25 is provided inside the mounting hole 9;

[0024] After the patient lies on the treatment bed, the main body 1 of the expansion device is fixed to the treatment bed outside the patient's head through the bottom plate 3 and the fixing bolts 25;

[0025] A bidirectional screw rod 7 is provided on one side of the main body 1 of the opening device, and both ends of the bidirectional screw rod 7 are sleeved with movable sleeves 8, a fixed rod 4 is fixed on one side of the movable sleeve 8, and an opening plate 11 is provided on one side of the fixed rod 4;

[0026] The top of the bottom plate 3 is provided with a sleeve 13, and the inside of the sleeve 13 is sleeved with a bracket 14, the bracket 14 is evenly provided with screw holes 22, and the sleeve 13 is provided with a reserved hole 23, and the reserved hole 23 and the screw hole 22 are connected and locked by a fastener 24;

[0027] The height position of the main body 1 of the expansion device can be adjusted by making the screw holes 22 at different positions on the bracket 14 correspond to the reserved holes 23 on the sleeve 13 and locking and fixing them with the fasteners 24. The position of the expansion plate 11 inserted into the patient's mouth can be adjusted according to the condition of the patient's head, so that the expansion plate 11 can extend into the upper and lower ends of the patient's mouth;

[0028] A handle 6 is provided on one side of one end of the main body 1 of the opening device, and one end of the handle 6 is connected to a bidirectional screw rod 7;

[0029] By rotating the handle 6, the bidirectional screw 7 can be driven to rotate, so that the movable sleeve 8 moves along the bidirectional screw 7, driving the opening plate 11 to open the patient's lower jaw. This structure has better stability, and the opening force can be adjusted according to the patient's oral condition to meet different usage requirements;

[0030] One side of the expansion plate 11 is evenly provided with silicone protrusions 16, and the expansion plate 11 is symmetrically distributed with respect to the expansion device body 1, so as to reduce friction with the inner wall of the patient's oral cavity;

[0031] A guide rod 2 is provided on one side of the main body 1 of the opening device away from the bidirectional screw rod 7. Both ends of the guide rod 2 are sleeved with guide sleeves 12, and one side of the guide sleeve 12 is connected to the fixed rod 4 to guide and limit the opening plate 11.

[0032] The side of the opening plate 11 close to the fixed rod 4 is connected to the fixed rod 4 through the mounting member 10, and the mounting member 10 is provided with a reserved groove 21, and a pull rod 15 is vertically arranged inside the reserved groove 21, and a handle 20 is arranged at the top of the pull rod 15, and a limit block 19 is arranged at one end of the pull rod 15 close to the fixed rod 4, and the limit grooves 5 are evenly distributed on the side of the fixed rod 4 close to the limit block 19;

[0033] The inside of the reserved groove 21 is evenly provided with a pressing plate 18 through a return spring 17, and one end of the pressing plate 18 is connected to the pull rod 15;

[0034] After the oral restoration is completed, by pulling the pull rod 15, the pressure plate 18 squeezes the reset spring 17, and at the same time the limit block 19 is separated from the limit groove 5 on the fixed rod 4 and stored in the reserved groove 21. Then the expansion plate 11 can be removed from the fixed rod 4 for easy cleaning and maintenance.

[0035] Working principle: When the embodiment of the present application is in use, after the patient lies on the treatment bed, the main body 1 of the expansion device is fixed to the treatment bed outside the patient's head through the bottom plate 3, and the screw holes 22 at different positions on the bracket 14 correspond to the reserved holes 23 on the sleeve 13, and are locked and fixed by the fasteners 24. The height position of the main body 1 of the expansion device can be adjusted, and can be adjusted according to the condition of the patient's head, and then the position of the expansion plate 11 inserted into the patient's oral cavity is adjusted, so that the expansion plate 11 can extend into the upper and lower ends of the patient's oral cavity, and the bidirectional screw rod 7 can be driven to rotate by rotating the handle 6, so that the movable sleeve 8 moves along the bidirectional screw rod 7, driving the expansion plate 11 to expand the patient's lower jaw. The structural stability is better, and the expansion force can be adjusted according to the patient's oral condition to meet different usage requirements. After the oral restoration is completed, the pull rod 15 is pulled to make the pressure plate 18 squeeze the reset spring 17, and the limit block 19 is separated from the limit groove 5 on the fixed rod 4 and stored in the reserved groove 21. Then the expansion plate 11 can be removed from the fixed rod 4, which is convenient for cleaning and maintenance.

Claims

1. A mandibular distraction device for oral rehabilitation, characterized in that: The invention comprises a spreading device body (1), a fixing rod (4), a bidirectional screw rod (7) and a spreading plate (11); a bottom plate (3) is arranged at the four corners of the bottom of the spreading device body (1); a bidirectional screw rod (7) is arranged on one side inside the spreading device body (1); movable sleeves (8) are sleeved on both ends of the bidirectional screw rod (7); a fixing rod (4) is fixed on one side of the movable sleeve (8); a spreading plate (11) is arranged on one side of the fixing rod (4); a side of the spreading plate (11) close to the fixing rod (4) is connected to the fixing rod (4) via a mounting member (10); a handle (6) is arranged on one side of one end of the spreading device body (1); and one end of the handle (6) is connected to the bidirectional screw rod (7).

2. The mandibular distraction device for oral restoration according to claim 1, characterized in that: A guide rod (2) is provided on a side of the opening device body (1) away from the bidirectional screw rod (7), both ends of the guide rod (2) are sleeved with guide sleeves (12), and one side of the guide sleeve (12) is connected to the fixed rod (4).

3. The mandibular distraction device for oral restoration according to claim 1, characterized in that: The bottom plate (3) is provided with a mounting hole (9), and the inside of the mounting hole (9) is provided with a fixing bolt (25).

4. The mandibular distraction device for oral restoration according to claim 1, characterized in that: The top of the base plate (3) is provided with a sleeve (13), and the interior of the sleeve (13) is sleeved with a bracket (14), the bracket (14) is evenly provided with screw holes (22), the sleeve (13) is provided with a reserved hole (23), and the reserved hole (23) and the screw hole (22) are connected and locked by a fastener (24).

5. The mandibular distraction device for oral restoration according to claim 1, characterized in that: The mounting parts (10) are all provided with a reserved groove (21), and a pull rod (15) is vertically arranged inside the reserved groove (21), a handle (20) is arranged at the top of the pull rod (15), and a limiting block (19) is arranged at one end of the pull rod (15) close to the fixed rod (4), and the limiting grooves (5) are evenly distributed on one side of the fixed rod (4) close to the limiting block (19).

6. The mandibular distraction device for oral restoration according to claim 1, characterized in that: One side of the expansion plate (11) is evenly provided with silicone protrusions (16), and the expansion plate (11) is symmetrically distributed with respect to the expansion device body (1).

7. The mandibular distraction device for oral restoration according to claim 5, characterized in that: A pressure plate (18) is evenly arranged inside the reserved groove (21) via a return spring (17), and one end of the pressure plate (18) is connected to the pull rod (15).

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