A temporomandibular joint protector

Abstract

The utility model discloses a kind of temporomandibular joint protectors, relate to medical instrument technical field.The utility model includes support assembly and opening component, support assembly includes: support rod, base, eccentric block, big arm, small arm, locking knob one, sleeve rod one, sliding rod one, lower jaw support;Opening component is respectively installed in the side corresponding to two small arms, and opening component includes: connecting block, sleeve rod two, sliding rod two, locking knob three.By setting big arm and small arm, specifically is first rotating support rod, make protector whole adhesion patient face, utilize eccentric block locking support rod angle, then adjust the rotation angle of big arm and small arm, utilize locking knob one locking, then, according to the specific position of chin, pull sliding rod one, from sleeve rod one extend or retract, then tighten locking knob three, the position of sliding rod one is fixed, make lower jaw support adhesion patient chin, solved the problem that existing temporomandibular joint protector is difficult to stabilize and support lower jaw.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a temporomandibular joint protector. Background Technology

[0002] In dental procedures such as tooth extraction and root canal treatment, which require maintaining an open mouth for an extended period, the temporomandibular joint is prone to disorder and dislocation due to the force of instruments or the patient's unconscious biting movements. Therefore, temporomandibular joint protectors have become a key auxiliary device to improve the safety of the procedure. However, existing temporomandibular joint protectors still have some problems.

[0003] For example, the utility model patent with publication number CN220275757U includes a mounting frame and a telescopic arm. The mounting frame and the telescopic arm are connected by a first universal joint. The end of the telescopic arm away from the first universal joint is connected to a cheek hook mouthpiece and a main support rod by a second universal joint. The end of the main support rod away from the second universal joint is provided with two sets of support rods. The other end of the support rod is equipped with a chin rest.

[0004] Although the telescopic arm, telescopic rod and universal joint structure of this utility model can make the chin support fit the face well, it lacks an adjustable locking mechanism, which makes it easy for the angle to shift under external force during surgery, making it difficult to stably support the chin. Utility Model Content

[0005] The purpose of this invention is to provide a temporomandibular joint protector. Specifically, by setting up an upper arm and a lower arm, the protector is first rotated to fit the patient's face. An eccentric block is used to lock the angle of the support rod. Then, the rotation angles of the upper and lower arms are adjusted and locked using a locking knob. Next, depending on the specific position of the chin, two sliding rods connected to the right side of the lower arm are pulled, causing them to extend or retract from the sleeve rod under the action of the chin support. Then, the locking knob is tightened to press the threaded block against the surface of the sliding rod, fixing its position and ensuring the chin support fits the patient's chin. This solves the problem of existing temporomandibular joint protectors failing to stably support the jaw.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a temporomandibular joint protector, comprising a support assembly and an opening assembly, wherein the number of support assemblies is set to two, and the support assembly includes:

[0008] A support rod, the bottom of which is rotatably connected to a base, the base being fixedly connected to the back of the dental chair by bolts, and an eccentric block being rotatably connected to the outer surface of the base, the outer surface of the eccentric block being in contact with the outer surface of the support rod;

[0009] The upper arm is rotatably connected to the top of the support rod via a pivot, and the lower arm is rotatably connected to the right side of the upper arm via a pivot.

[0010] Locking knob one, the locking knob one is threadedly connected to the upper arm and forearm pivot, and the locking knob one is in contact with the outer surface of the upper arm and forearm respectively;

[0011] Sleeve rod one, which is fixedly connected to the right side of the forearm, and slide rod one is slidably connected to the inner wall of sleeve rod one. A chin support is fixedly connected to the right side of the two slide rods one.

[0012] The number of opening components is set to two, each installed on one side of the two forearms respectively, for supporting the teeth. The opening components include:

[0013] A connecting block, wherein the connecting block is disposed on the inner side of the forearm;

[0014] Sleeve rod two, which is fixedly connected to the top of the connecting block, and slide rod two is slidably connected to the inner wall of sleeve rod two;

[0015] The threaded blocks are fixedly connected to the side of the sleeve rod 2 and the sleeve rod 1 near the slide rod 2 and the slide rod 1, respectively. The inner side of the four threaded blocks is in contact with the outer surface of the slide rod 2 or the slide rod 1, and the outer surface of the threaded blocks is threaded with a locking knob 3.

[0016] An adjusting rod is fixedly connected to the side of the connecting block near the forearm. The outer surface of the adjusting rod is rotatably and slidably connected to the inside of the forearm. A locking knob is threadedly connected to the top of the forearm, and the bottom of the locking knob contacts the outer surface of the adjusting rod.

[0017] The top of the slide bar is provided with a support block, and a sleeve is fixedly connected to one side of each of the two support blocks. A tooth holder is provided at the top and bottom of the sleeve.

[0018] The inner wall of the mandibular support is fixedly connected with a soft pad, and silicone pads are fixedly connected to opposite sides of the two dental supports.

[0019] Furthermore, the opening assembly also includes:

[0020] A lead screw, which is rotatably connected inside a sleeve, has two opposite threads on its outer surface;

[0021] Two sliders are slidably connected to the inner wall of the sleeve, and the inside of the sliders is threadedly connected to the outer surface of the lead screw.

[0022] A first bevel gear is fixedly connected to the outer surface of the lead screw, and a second bevel gear is rotatably connected to the inner wall of the sleeve, with the second bevel gear meshing with the outer surface of the first bevel gear.

[0023] An adjustment knob is rotatably connected to the outer surface of the support block, and the adjustment knob is fixedly connected to the bevel gear II via a connecting rod.

[0024] Furthermore, a positioning pin is fixedly connected to the top of the slide rod 2, and an elastic buckle is fixedly connected to the outer surface of the positioning pin. A positioning hole is opened at the bottom of the support block, the inner wall of the positioning hole is inserted into the outer surface of the positioning pin, and a slot is opened in the inner wall of the positioning hole, the inner wall of the slot is in contact with the outer surface of the elastic buckle.

[0025] This utility model has the following beneficial effects:

[0026] 1. This utility model, by setting up an upper arm and a forearm, specifically involves first rotating the support rod to make the entire protector fit the patient's face, then using an eccentric block to lock the angle of the support rod, and then adjusting the rotation angle of the upper arm and forearm, locking them with a locking knob. Next, according to the specific position of the chin, pull the two sliding rods connected to the right side of the forearm, so that they extend or retract from the sleeve rod under the action of the chin support. Then tighten the locking knob to press the threaded block against the surface of the sliding rod, fixing the position of the sliding rod and making the chin support fit the patient's chin, thus improving the stability of the protector.

[0027] 2. This utility model features an opening assembly, specifically a dental tray used to support teeth, facilitating operation by medical staff. When the spacing between the dental trays needs to be adjusted, rotating the adjustment knob rotates the second bevel gear via the connecting rod. The second bevel gear drives the first bevel gear meshing with it, thereby rotating the lead screw with opposite threads. This causes the two sliders to slide towards or away from each other within the sleeve, thus moving the dental tray synchronously to adapt to different opening sizes and improve adaptability.

[0028] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the upper arm and forearm structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the three structures of the locking knob of this utility model;

[0033] Figure 4 This is a schematic diagram of the internal structure of the sleeve of this utility model;

[0034] Figure 5 This is a schematic diagram of the positioning pin structure of this utility model.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Support assembly; 11. Support rod; 111. Base; 112. Eccentric block; 12. Upper arm; 121. Lower arm; 122. Locking knob one; 13. Sleeve rod one; 131. Slide rod one; 14. Chin rest; 15. Soft pad; 2. Opening assembly; 21. Connecting block; 211. Adjusting rod; 212. Locking knob two; 22. Sleeve rod two; 221. Slide rod two; 222. Threaded block; 223. Locking knob three; 23. Support block; 231. Positioning pin; 232. Elastic buckle; 233. Positioning hole; 234. Slot; 24. Sleeve; 241. Lead screw; 242. Slider; 243. Bevel gear one; 244. Bevel gear two; 245. Adjusting knob; 25. Dental bracket; 251. Silicone pad. Detailed Implementation

[0037] 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 scope of protection of the present utility model.

[0038] Please see Figures 1-5 As shown, this utility model has the following two specific embodiments.

[0039] Example 1

[0040] This utility model is a temporomandibular joint protector, including a support component 1 and an opening component 2. The number of support components 1 is set to two, and each support component 1 includes:

[0041] Support rod 11, with base 111 rotatably connected to the bottom of support rod 11. Base 111 is fixedly connected to the back of dental chair by bolts. Eccentric block 112 is rotatably connected to the outer surface of base 111. The outer surface of eccentric block 112 is in contact with the outer surface of support rod 11.

[0042] The upper arm 12 is rotatably connected to the top of the support rod 11 via a pivot, and the lower arm 121 is rotatably connected to the right side of the upper arm 12 via a pivot.

[0043] Locking knob 122 is threadedly connected to the pivot of the upper arm 12 and the lower arm 121. Locking knob 122 contacts the outer surface of the upper arm 12 and the lower arm 121 respectively.

[0044] Sleeve rod 13 is fixedly connected to the right side of forearm 121. Slide rod 131 is slidably connected to the inner wall of sleeve rod 13. A chin support 14 is fixedly connected to the right side of the two slide rods 131.

[0045] Two opening components 2 are provided, each installed on one side of the two forearms 121 respectively, to support the teeth. The opening component 2 includes:

[0046] Connecting block 21, the connecting block 21 is located on the inner side of the forearm 121;

[0047] Sleeve rod 22 is fixedly connected to the top of connecting block 21, and slide rod 221 is slidably connected to the inner wall of sleeve rod 22.

[0048] Four threaded blocks 222 are fixedly connected to the side of the threaded block 222, sleeve rod 22, and sleeve rod 13 near the slide rod 221 and slide rod 131. The inner side of the four threaded blocks 222 contacts the outer surface of slide rod 221 or slide rod 131, and the outer surface of the threaded block 222 is threaded with a locking knob 323.

[0049] like Figures 1-3 As shown, by setting up the upper arm 12 and the forearm 121, specifically, firstly, the support rod 11 is rotated so that the entire protector fits the patient's face. The angle of the support rod 11 is locked using the eccentric block 112. Then, the rotation angle of the upper arm 12 and the forearm 121 is adjusted and locked using the locking knob 122. Next, according to the specific position of the chin, the two sliding rods 131 connected to the right side of the forearm 121 are pulled so that they extend or retract from the sleeve rod 13 under the action of the chin support 14. Then, the locking knob 223 is tightened so that the threaded block 222 presses against the surface of the sliding rod 131, fixing the position of the sliding rod 131 and making the chin support 14 fit the patient's chin, thus improving the stability of the protector.

[0050] An adjusting rod 211 is fixedly connected to the side of the connecting block 21 near the forearm 121. The outer surface of the adjusting rod 211 is rotatably and slidably connected to the inside of the forearm 121. A locking knob 212 is threadedly connected to the top of the forearm 121. The bottom of the locking knob 212 is in contact with the outer surface of the adjusting rod 211.

[0051] The top of the slide bar 221 is provided with a support block 23, and a sleeve 24 is fixedly connected to one side of each of the two support blocks 23. The top and bottom of the sleeve 24 are provided with a tooth holder 25.

[0052] A soft pad 15 is fixedly connected to the inner wall of the lower jaw support 14, and silicone pads 251 are fixedly connected to opposite sides of the two dental supports 25.

[0053] By pushing the adjustment rod 211 to rotate and slide inside the forearm 121, the opening assembly 2 can better adapt to different patients' mouth positions, improving the flexibility of use; the dental tray 25 can accurately fit the user's teeth, providing effective opening support and facilitating operation by medical staff; the soft pad 15 reduces pressure on the skin and jaw, improving wearing comfort, and the silicone pad 251 provides a soft contact surface to protect teeth and gums from friction from hard objects.

[0054] Example 2

[0055] The difference from Embodiment 1 is that this embodiment discloses the adjustment and installation structure of the dental tray 25:

[0056] Opening component 2 also includes:

[0057] The lead screw 241 is rotatably connected inside the sleeve 24, and the outer surface of the lead screw 241 is provided with two opposite threads.

[0058] Two sliders 242 are slidably connected to the inner wall of sleeve 24, and the inside of sliders 242 is threadedly connected to the outer surface of lead screw 241.

[0059] A bevel gear 243 is fixedly connected to the outer surface of the lead screw 241, and a bevel gear 244 is rotatably connected to the inner wall of the sleeve 24. The bevel gear 244 meshes with the outer surface of the bevel gear 243.

[0060] Adjustment knob 245 is rotatably connected to the outer surface of support block 23, and adjustment knob 245 is fixedly connected to bevel gear 244 by a connecting rod.

[0061] like Figure 4 As shown, by setting the opening component 2, specifically when it is necessary to adjust the spacing of the tooth holder 25, rotating the adjustment knob 245 rotates the bevel gear 244 through the connecting rod. The bevel gear 244 drives the bevel gear 243 that meshes with it, thereby driving the lead screw 241 with opposite threads to rotate, so that the two sliders 242 slide towards each other or away from each other in the sleeve 24, thereby driving the tooth holder 25 to move synchronously, adapting to different opening size changes and improving adaptability.

[0062] The top of the slide bar 221 is fixedly connected to a positioning pin 231, and the outer surface of the positioning pin 231 is fixedly connected to an elastic buckle 232. The bottom of the support block 23 has a positioning hole 233, the inner wall of the positioning hole 233 is inserted into the outer surface of the positioning pin 231, and the inner wall of the positioning hole 233 has a groove 234, the inner wall of the groove 234 is in contact with the outer surface of the elastic buckle 232.

[0063] like Figure 5 As shown, the positioning pin 231 and the elastic buckle 232 are designed to facilitate the quick installation and removal of the dental tray 25, and to make cleaning and maintenance convenient.

[0064] One specific application of this embodiment is as follows: First, the base 111 is fixedly connected to the back of the dental chair with bolts. During use, initial adjustments are made according to the patient's head size and face shape. First, the support rod 11 is rotated to make the protector fit the patient's face. The angle of the support rod 11 is locked using the eccentric block 112. Then, the rotation angle of the upper arm 12 and the forearm 121 is adjusted and locked using the locking knob 122. Next, according to the specific position of the chin, the two sliding rods 131 connected to the right side of the forearm 121 are pulled. The jaw support 14 extends or retracts from the sleeve 13 under its influence. Then, tighten the locking knob 223 to press the threaded block 222 against the surface of the slide rod 131, fixing the slide rod 131 in place. This allows the jaw support 14 to conform to the patient's chin, reducing pressure and ensuring comfort. Subsequently, adjust the lateral position and angle of the opening assembly 2 according to the user's oral position, pushing the adjusting rod 211 to slide and rotate inside the forearm 121. Then, use the locking mechanism... Tighten knob 212, then adjust the height by sliding rod 221 inside sliding sleeve 22 to adjust the vertical height of support block 23. After adjustment, tighten locking knob 223 on sleeve 22 to fix the height. Next, place the upper and lower teeth on the tooth holders 25 at the top and bottom of sleeve 24 respectively. The silicone pads 251 on the tooth holders 25 will provide a comfortable contact surface. If it is necessary to adjust the distance between the two tooth holders 25, rotate adjusting knob 245 to rotate bevel gear 244 through connecting rod. Gear 244 drives bevel gear 243, which meshes with it, thereby causing the lead screw 241 with opposite threads to rotate. This causes the two sliders 242 to slide towards or away from each other in the sleeve 24, thereby causing the tooth holder 25 to move synchronously. After use, the support block 23, along with the sleeve 24 and the tooth holder 25, is removed from the top of the slide bar 221 for disinfection or replacement. During installation, the positioning hole 233 at the bottom of the support block 23 is inserted into the positioning pin 231, so that the elastic buckle 232 contacts the inner wall of the slot 234.

[0065] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A temporomandibular joint protector, comprising a support assembly (1) and an opening assembly (2), characterized in that: The number of support components (1) is set to two, and the support component (1) includes: A support rod (11) is rotatably connected to a base (111) at its bottom. The base (111) is fixedly connected to the back of the dental chair by bolts. An eccentric block (112) is rotatably connected to the outer surface of the base (111). The outer surface of the eccentric block (112) is in contact with the outer surface of the support rod (11). The upper arm (12) is rotatably connected to the top of the support rod (11) via a pivot, and the lower arm (121) is rotatably connected to the right side of the upper arm (12) via a pivot. Locking knob one (122) is threadedly connected to the pivot of the upper arm (12) and the forearm (121), and the locking knob one (122) contacts the outer surface of the upper arm (12) and the forearm (121) respectively; Sleeve rod one (13), the sleeve rod one (13) is fixedly connected to the right side of the forearm (121), the inner wall of the sleeve rod one (13) is slidably connected to the slide rod one (131), and the two slide rods one (131) are fixedly connected to the right side of the chin support (14). The number of the opening components (2) is set to two, respectively installed on one side of the two forearms (121), for supporting the teeth. The opening components (2) include: Connecting block (21), the connecting block (21) is disposed on the inner side of the forearm (121); Sleeve rod two (22), which is fixedly connected to the top of the connecting block (21), and slide rod two (221) is slidably connected to the inner wall of sleeve rod two (22). The threaded block (222) is fixedly connected to the side of the sleeve rod two (22) and the sleeve rod one (13) near the slide rod two (221) and the slide rod one (131). The inner side of the four threaded blocks (222) is in contact with the outer surface of the slide rod two (221) or the slide rod one (131). The outer surface of the threaded block (222) is threaded with a locking knob three (223).

2. The temporomandibular joint protector according to claim 1, characterized in that, The connecting block (21) is fixedly connected to an adjusting rod (211) on the side near the forearm (121). The outer surface of the adjusting rod (211) is rotatably and slidably connected to the inside of the forearm (121). The top of the forearm (121) is threadedly connected to a locking knob (212), and the bottom of the locking knob (212) is in contact with the outer surface of the adjusting rod (211).

3. A temporomandibular joint protector according to claim 1, characterized in that, The top of the slide bar (221) is provided with a support block (23), and a sleeve (24) is fixedly connected to one side of each of the two support blocks (23). The top and bottom of the sleeve (24) are provided with a tooth holder (25).

4. A temporomandibular joint protector according to claim 3, characterized in that, The inner wall of the mandibular support (14) is fixedly connected with a soft pad (15), and the two dental supports (25) are fixedly connected with silicone pads (251) on opposite sides.

5. A temporomandibular joint protector according to claim 3, characterized in that, The opening assembly (2) further includes: A lead screw (241) is rotatably connected inside a sleeve (24), and the outer surface of the lead screw (241) is provided with two opposite threads; Two sliders (242) are slidably connected to the inner wall of the sleeve (24), and the inside of the sliders (242) is threadedly connected to the outer surface of the lead screw (241); A bevel gear one (243) is fixedly connected to the outer surface of the lead screw (241), and a bevel gear two (244) is rotatably connected to the inner wall of the sleeve (24). The bevel gear two (244) meshes with the outer surface of the bevel gear one (243). An adjustment knob (245) is rotatably connected to the outer surface of the support block (23), and the adjustment knob (245) is fixedly connected to the second bevel gear (244) by a connecting rod.

6. A temporomandibular joint protector according to claim 3, characterized in that, The top of the slide bar (221) is fixedly connected to a positioning pin (231), and an elastic buckle (232) is fixedly connected to the outer surface of the positioning pin (231). The bottom of the support block (23) is provided with a positioning hole (233), the inner wall of the positioning hole (233) is inserted into the outer surface of the positioning pin (231), and the inner wall of the positioning hole (233) is provided with a groove (234), the inner wall of the groove (234) is in contact with the outer surface of the elastic buckle (232).

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