A fixing device for adhesive-free crowns

Abstract

The utility model discloses a kind of fixing devices for adhesive-free crown, comprising: sleeve, connecting abutment, implant and fixing device, the sleeve inside is provided with connecting abutment, the connecting abutment bottom end is provided with implant;The fixing device includes: receiving part and fixed part, the receiving part is slidably connected with sleeve, and the fixed part is arranged above receiving part;The receiving part includes: receiving ring, first wedge, second wedge and fixed ring, the inner ring of receiving ring is fixedly connected with first wedge, the bottom end of first wedge is extruded with second wedge, the bottom end of second wedge is fixedly connected with sliding block, the top of fixed ring is provided with sliding slot, and the inside of sliding slot is slidably connected with sliding block, the utility model crown can be clamped and fixed to prevent falling off, and stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of dental implant technology, and in particular to a fixation device for adhesive-free dental crowns. Background Technology

[0002] With the continuous development of dental implant technology, the method of fixing dental crowns has gradually shifted from the traditional bonding method to a more advanced and stable method.

[0003] In existing technologies, traditional crown fixation usually relies on adhesives for fixation. While this method can ensure the initial stability of the crown, the adhesive will age, dissolve, or fall off during long-term use, affecting the stability and lifespan of the crown. Utility Model Content

[0004] The purpose of this invention is to provide a fixing device for adhesive-free dental crowns, which solves the problem of dental crowns easily aging and falling off, reducing stability.

[0005] To achieve this objective, the present invention adopts the following technical solution: A fixation device for adhesive-free dental crowns includes: a sleeve, a connecting abutment, an implant, and a fixation assembly. The connecting abutment is disposed inside the sleeve, and the implant is disposed at the bottom end of the connecting abutment. The fixing component includes: a receiving part and a fixing part, wherein the receiving part is slidably connected to the sleeve, and the fixing part is disposed above the receiving part; The receiving part includes: a receiving ring, a first wedge, a second wedge, and a fixing ring. The inner ring of the receiving ring is fixedly connected to the first wedge. The bottom end of the first wedge is pressed and engaged with the second wedge. A slider is fixedly connected to the bottom end of the second wedge. A groove is provided at the top of the fixing ring, and the inside of the groove is slidably connected to the slider.

[0006] Preferably, an elastic element is provided between one end of the slider and the groove.

[0007] Preferably, the fixing part includes: a sliding rod, a rotating plate, a connecting plate and a snap-fit ​​plate, wherein the bottom end of the sliding rod is slidably connected to the sleeve, the outer surface of the sliding rod is rotatably connected to the rotating plate, one end of the rotating plate is rotatably connected to the connecting plate, and one end of the connecting plate is fixedly connected to the snap-fit ​​plate.

[0008] Preferably, a fixing rod is slidably connected through the inside of the snap-fit ​​plate, and the fixing rod is fixedly connected to the top end of the sleeve.

[0009] Preferably, the outer surface of the snap-fit ​​plate has a circular arc structure.

[0010] Compared with the prior art, the present invention has the following beneficial effects: By setting up a receiving part and a fixing part, the receiving part includes a receiving ring, a first wedge, a second wedge, a slider, and a fixing ring. During the crown installation process, the wedge compression and slider sliding engagement structure allows the fixing part to be moved along with the crown installation action, achieving reliable engagement between the locking plate and the crown installation slot. This structure can solve the problem of crown loosening caused by the easy aging and falling off of traditional adhesives, thereby achieving stable fixing of the crown, preventing it from falling off, and improving overall stability. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0012] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0013] Figure 1 This is a schematic diagram of the components of this utility model; Figure 2 This is a structural schematic diagram of the sliding rod, rotating plate, and connecting plate of this utility model; Figure 3 This is a structural schematic diagram of the receiving ring, fixing ring, and slider components of this utility model; Figure 4 This is a schematic diagram showing the movement of the first and second wedges of this utility model.

[0014] Illustrations: 1. Sleeve; 2. Connecting abutment; 3. Implant; 4. Fixing component; 410. Receiving part; 411. Receiving ring; 412. First wedge; 413. Second wedge; 414. Fixing ring; 415. Sliding block; 416. Slide groove; 420. Fixing part; 421. Sliding rod; 422. Rotating plate; 423. Connecting plate; 424. Snap-fit ​​plate; 5. Fixing rod; 6. Elastic element. Detailed Implementation

[0015] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] refer to Figure 1 - Figure 4 As shown, this utility model embodiment provides a fixation device for adhesive-free dental crowns, including: a sleeve 1, a connecting abutment 2, an implant 3, and a fixation component 4. The connecting abutment 2 is disposed inside the sleeve 1, and the implant 3 is disposed at the bottom end of the connecting abutment 2. The fixing component 4 includes a receiving part 410 and a fixing part 420. The receiving part 410 is slidably connected to the sleeve 1, and the fixing part 420 is disposed above the receiving part 410. The receiving part 410 includes: a receiving ring 411, a first wedge 412, a second wedge 413, and a fixing ring 414. The inner ring of the receiving ring 411 is fixedly connected to the first wedge 412. The bottom end of the first wedge 412 is pressed and engaged with the second wedge 413. A slider 415 is fixedly connected to the bottom end of the second wedge 413. A groove 416 is provided at the top end of the fixing ring 414. The inside of the groove 416 is slidably connected to the slider 415.

[0019] First, manually insert the crown onto the surface of sleeve 1. Then, manually press the crown along the first direction. An installation groove is provided inside the crown, allowing it to slide along the first direction on the surface of sleeve 1. The crown then contacts and pushes the receiving ring 411 along the first direction, causing the receiving ring 411 to move the first wedge 412 along the first direction. Simultaneously, the first wedge 412 moves and presses against the second wedge 413. The heights of the two ends of the first wedge 412 along the first direction are h1 and h2, respectively, while the heights of the two ends of the second wedge 413 along the first direction are h3 and h4. One end of h1 contacts h4, and one end of h2 contacts h3. The height of one end of h1 is greater than that of h2, while the height of one end of h3 is less than that of h4. Therefore, the inclined surface of the first wedge 413 slopes from one end of h1 towards h2, and the inclined surface of the second wedge 413 slopes from one end of h4 towards h3. When the first wedge moves along the first direction, the height of the first wedge 412 at h2... One end of the first wedge 412 detaches from the h4 end of the second wedge 413, causing the h1 end of the first wedge 412 to slowly move towards the h4 end of the second wedge 413 along the first direction. This causes the height of the inclined surface of the first wedge 412 contacting the second wedge 413 to gradually change from h2 to h1, increasing its height. Since the first wedge 412 and the second wedge 413 are respectively arranged circumferentially on the receiving ring 411 and the fixing ring 414, the first wedge 412 pushes the second wedge through the h1 end. 413 slides outward along the circumference on the fixed ring 414, causing the second wedge 413 to drive the sliding part to slide outward along the circumference. Then the slider 415 pulls the elastic element 6 outward. The side of the second wedge 413 is provided with a limiting groove corresponding to the first wedge 412, so that the first wedge 412 is slowly inserted into the limiting groove along the first direction. Then the fixed ring 414 stops driving the first wedge 412 to slide on the surface of the sleeve 1. The above-mentioned outward sliding direction along the circumference is defined as the second direction. It should be noted that the aforementioned elastic element 6 can be made of elastic components such as springs, elastic blocks, or airbags.

[0020] refer to Figure 1 , Figure 2 and Figure 3 As shown, the fixing part 420 includes: a sliding rod 421, a rotating plate 422, a connecting plate 423, and a snap-fit ​​plate 424. The bottom end of the sliding rod 421 is slidably connected to the sleeve 1, the outer surface of the sliding rod 421 is rotatably connected to the rotating plate 422, one end of the rotating plate 422 is rotatably connected to the connecting plate 423, and one end of the connecting plate 423 is fixedly connected to the snap-fit ​​plate 424.

[0021] As the crown moves along the first direction, it presses the sliding rod 421 along the first direction within its mounting groove, causing the sliding rod 421 to move along the first direction within the sleeve 1. Subsequently, the sliding rod 421 drives the rotating plate 422 to rotate clockwise along the first direction, causing the rotating plate 422 to push the snap-fit ​​plate 424 to move to both sides. As the crown slides continuously along the first direction on the sleeve 1, it continuously pushes the sliding rod 421 to drive the snap-fit ​​plate 424 to slide on the fixed rod 5, so that the snap-fit ​​plate 424 is snapped into the mounting groove of the crown through the arc structure, thus fixing the crown to the surface of the sleeve 1.

[0022] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fixation device for adhesive-free dental crowns, characterized in that, include: The sleeve (1), connecting base (2), implant (3) and fixing component (4) are provided. The connecting base (2) is provided inside the sleeve (1), and the implant (3) is provided at the bottom of the connecting base (2). The fixing component (4) includes: a receiving part (410) and a fixing part (420), wherein the receiving part (410) is slidably connected to the sleeve (1), and the fixing part (420) is disposed above the receiving part (410); The receiving part (410) includes: a receiving ring (411), a first wedge (412), a second wedge (413) and a fixing ring (414). The inner ring of the receiving ring (411) is fixedly connected to the first wedge (412). The bottom end of the first wedge (412) is pressed and engaged with the second wedge (413). The bottom end of the second wedge (413) is fixedly connected to a slider (415). The top end of the fixing ring (414) is provided with a groove (416). The inside of the groove (416) is slidably connected to the slider (415).

2. The fixing device for adhesive-free dental crowns according to claim 1, characterized in that, An elastic element (6) is provided between one end of the slider (415) and the groove (416).

3. The fixing device for adhesive-free dental crowns according to claim 2, characterized in that, The fixing part (420) includes: a sliding rod (421), a rotating plate (422), a connecting plate (423), and a snap-fit ​​plate (424). The bottom end of the sliding rod (421) is slidably connected to the sleeve (1), the outer surface of the sliding rod (421) is rotatably connected to the rotating plate (422), one end of the rotating plate (422) is rotatably connected to the connecting plate (423), and one end of the connecting plate (423) is fixedly connected to the snap-fit ​​plate (424).

4. The fixing device for adhesive-free dental crowns according to claim 3, characterized in that, A fixing rod (5) is slidably connected through the inside of the snap-fit ​​plate (424), and the fixing rod (5) is fixedly connected to the top end of the sleeve (1).

5. A fixing device for adhesive-free dental crowns according to claim 3, characterized in that, The outer surface of the snap-fit ​​plate (424) adopts a circular arc structure.

Images