dental implants

Abstract

The present invention discloses a dental implant, comprising: a sleeve, which is provided with a through hole, the through hole passes through the sleeve in the up-down direction, the side wall of the sleeve is provided with a long slot, the long slot extends upward from the bottom end of the sleeve, and the long slot passes through the side wall of the sleeve; a first shape memory alloy body, which is provided in the through hole, the first shape memory alloy body is interference fit with the through hole, and the top of the first shape memory alloy body is provided with a mounting hole; a second shape memory alloy body, which is inserted into the mounting hole, the second shape memory alloy body is interference fit with the mounting hole, and the top of the second shape memory alloy body extends above the sleeve. The dental implant of the present invention does not require tapping a threaded hole in the alveolar bone during implantation, which greatly reduces the difficulty of the dental implant implantation surgery. The present invention can be applied to dental implants.

Description

Technical Field

[0001] The present invention relates to the field of dental implants, in particular to dental implants. Background Art

[0002] Dental implants are implanted in the upper and lower jaws of the mouth in areas of missing teeth. Dentures are then installed on top of the implants to restore missing teeth. Existing dental implants utilize a threaded cylindrical implant portion. During implantation, a threaded hole is tapped in the alveolar bone. This threaded hole is then threaded into the implant portion, securing the implant to the bone. However, tapping the threaded hole in the alveolar bone is a complex operation, and screwing the implant portion into the threaded hole requires careful handling to avoid damaging the thread structure, making implant placement surgery more difficult. Summary of the Invention

[0003] The purpose of the present invention is to provide a dental implant to solve one or more technical problems existing in the prior art and at least provide a beneficial option or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] A dental implant comprising:

[0006] A sleeve having a through hole extending vertically through the sleeve, a side wall of the sleeve having a long slot extending upward from a bottom end of the sleeve and extending through the side wall of the sleeve;

[0007] a first shape memory alloy body disposed in the through hole, the first shape memory alloy body and the through hole having an interference fit, and a mounting hole being provided on a top of the first shape memory alloy body;

[0008] The second shape memory alloy body is inserted into the mounting hole. The second shape memory alloy body is interference fit with the mounting hole. The top of the second shape memory alloy body extends above the sleeve.

[0009] The beneficial effects of the present invention are as follows: when the dental implant is implanted, a hole matching the outer diameter of the sleeve is drilled in the alveolar bone, the first shape memory alloy body is cooled, and the shape of the first shape memory alloy body can be changed after cooling. The first shape memory alloy body is stretched to reduce its outer diameter, and the first shape memory alloy body is inserted into the through hole of the sleeve, and the sleeve is inserted into the hole of the alveolar bone. Due to the high temperature of the human oral cavity, the first shape memory alloy body is restored to its original shape, the outer diameter of the first shape memory alloy body becomes larger and supports the sleeve. Since the long slot hole of the sleeve extends upward from the bottom end, the first shape memory alloy body is deformed. The shape memory alloy body causes the bottom end of the sleeve to expand outward, thereby fixing the sleeve in the hole of the alveolar bone. The second shape memory alloy body is then stretched to reduce its outer diameter, and the second shape memory alloy body is inserted into the mounting hole. Due to the high temperature of the human oral cavity, the second shape memory alloy body returns to its original shape, and the outer diameter of the second shape memory alloy body becomes larger to interference fit with the mounting hole. The top of the second shape memory alloy body extends above the sleeve for mounting a dental restoration. Therefore, there is no need to tap a threaded hole in the alveolar bone when implanting the dental implant, which greatly reduces the difficulty of the dental implant implantation surgery.

[0010] As a further improvement of the above technical solution, the outer side wall of the sleeve is provided with an outer convex portion, the outer convex portion surrounds the circumference of the sleeve and protrudes outward.

[0011] When the sleeve is inserted into the alveolar bone hole, the outer convex portion of the sleeve outer wall abuts against the inner wall of the alveolar bone hole, and the outer convex portion is embedded in the inner wall of the alveolar bone hole, so that the sleeve is firmly installed in the alveolar bone hole.

[0012] As a further improvement of the above technical solution, there are multiple convex parts, and all of the convex parts are distributed in sequence from top to bottom.

[0013] A plurality of external protrusions are arranged on the outer wall of the sleeve at intervals from top to bottom, so that a plurality of buckles are formed between the outer wall of the sleeve and the alveolar bone hole, so that the sleeve is firmly installed in the alveolar bone hole.

[0014] As a further improvement of the above technical solution, an inner wall of the through hole is provided with an inner convex portion, the inner convex portion surrounds the through hole in a circle along the circumference of the through hole, and the inner convex portion protrudes toward the axis of the through hole.

[0015] After the first shape memory alloy body is inserted into the through hole of the sleeve, the temperature is increased so that the first shape memory alloy body and the through hole have an interference fit, the inner convex portion of the inner wall of the through hole is offset against the first shape memory alloy body, and the inner convex portion is embedded in the first shape memory alloy body, so that the first shape memory alloy body is firmly installed in the through hole.

[0016] As a further improvement of the above technical solution, there are multiple inner convex parts, and all of the inner convex parts are distributed in sequence from top to bottom.

[0017] A plurality of inner protrusions are spaced apart from top to bottom on the inner wall of the through hole, so that a plurality of buckles are formed between the inner wall of the through hole and the first shape memory alloy body, so that the first shape memory alloy body is firmly installed in the through hole.

[0018] As a further improvement of the above technical solution, the mounting hole is a stepped hole, the aperture of the upper section of the mounting hole is smaller than the aperture of the lower section, and the shape of the second shape memory alloy body matches the shape of the mounting hole.

[0019] The aperture of the upper section of the mounting hole is smaller than that of the lower section. By utilizing the aperture difference between the upper and lower sections of the mounting hole, the second shape memory alloy body is buckled into the mounting hole. The structure is simple, and the operation of inserting the second shape memory alloy body into the mounting hole is more convenient.

[0020] As a further improvement of the above technical solution, the inner side wall of the mounting hole has at least one plane.

[0021] The inner side wall of the mounting hole has at least one plane, which limits the rotational freedom of the second shape memory alloy body in the mounting hole.

[0022] As a further improvement of the above technical solution, the shape of the lower section of the mounting hole is a hexagonal hole.

[0023] The lower section of the mounting hole is a hexagonal hole, and the shape of the second shape memory alloy body matches the mounting hole, so that the second shape memory alloy body forms two sections with different shapes, which helps the second shape memory alloy body to be more firmly installed in the mounting hole.

[0024] As a further improvement of the above technical solution, there are at least three long slot holes, and all of the long slot holes are distributed in sequence along the circumference of the sleeve.

[0025] The plurality of long slots are spaced apart in sequence along the circumference of the sleeve. When the first shape memory alloy body supports the sleeve, a snap-fit ​​structure is formed at the bottom end of the sleeve along the circumference, which helps to firmly combine the sleeve with the alveolar bone hole.

[0026] As a further improvement of the above technical solution, the length of the long slot hole extending from bottom to top is greater than half of the length of the sleeve in the up-down direction.

[0027] The length of the long slot extending from bottom to top is greater than half of the length of the sleeve in the vertical direction, so that after the lower part of the sleeve is supported by the first shape memory alloy body, the lower part of the sleeve expands to a larger diameter, thereby helping the lower part of the sleeve to be firmly installed in the alveolar bone hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0029] Figure 1 This is an axonometric diagram of an embodiment of the dental implant provided by the present invention;

[0030] Figure 2 This is a schematic diagram of the assembly of an embodiment of the dental implant provided by the present invention;

[0031] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the dental implant provided by the present invention;

[0032] Figure 4 This is a cross-sectional schematic diagram of a sleeve of an embodiment of the dental implant provided by the present invention;

[0033] Figure 5 This is a cross-sectional schematic diagram of a first shape memory alloy body of a dental implant provided by the present invention in one embodiment;

[0034] Figure 6 This is an axonometric diagram of the second shape memory alloy body in one embodiment of the dental implant provided by the present invention.

[0035] 100 , sleeve, 110 , through hole, 111 , inner convex portion, 120 , long slot hole, 130 , outer convex portion, 200 , first shape memory alloy body, 210 , mounting hole, 300 , second shape memory alloy body. DETAILED DESCRIPTION

[0036] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, if there are words such as "several", it means one or more, and "more" means more than two. Greater than, less than, and exceed are understood as not including the number itself, and above, below, and within are understood as including the number itself.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] Reference Figures 1 to 6 The dental implant of the present invention is made into the following embodiments:

[0041] The dental implant includes a sleeve 100, a first shape memory alloy body 200, and a second shape memory alloy body 300. The sleeve 100 is provided with a through hole 110, which passes through the sleeve 100 in the up and down directions, and the sleeve 100 has a cylindrical structure. The side wall of the sleeve 100 is provided with a long slot hole 120, which extends upward from the bottom end of the sleeve 100 and passes through the side wall of the sleeve 100. The first shape memory alloy body 200 is arranged in the through hole 110, and the first shape memory alloy body 200 and the through hole 110 are interference fit, and the outer wall of the first shape memory alloy body 200 is against the inner wall of the through hole 110. The top of the first shape memory alloy body 200 is provided with a mounting hole 210, and the mounting hole 210 is connected to the outside through the through hole 110. The second shape memory alloy body 300 is disposed in the mounting hole 210. The second shape memory alloy body 300 and the mounting hole 210 have an interference fit, and the outer wall of the second shape memory alloy body 300 abuts against the inner wall of the mounting hole 210. The top of the second shape memory alloy body 300 extends through the through hole 110 above the sleeve 100. The top of the second shape memory alloy body 300 is used to install a prosthetic denture. The first shape memory alloy body 200 and the second shape memory alloy body 300 are both shape memory alloys. Shape memory alloys are materials composed of two or more metal elements that have a shape memory effect through thermoelastic and martensitic phase transformations and their inversion. The reason why shape memory alloys have deformation recovery capabilities is due to the thermoelastic martensitic phase transformation that occurs within the material during deformation. In this embodiment, the first shape memory alloy body 200 and the second shape memory alloy body 300 are nickel-titanium alloys.Before the dental implant is implanted, the sleeve 100, the first shape memory alloy body 200, and the second shape memory alloy body 300 are separated and placed separately. The first shape memory alloy body 200 and the second shape memory alloy body 300 are stored at low temperature, and the first shape memory alloy body 200 is stretched to make its outer diameter smaller. Then, the first shape memory alloy body 200 is inserted into the through hole 110 of the sleeve 100. Since the first shape memory alloy body 200 does not open the sleeve 100 at this time, the sleeve 100 can be smoothly inserted into the preset hole of the alveolar bone. Due to the high temperature of the human oral cavity, the temperature of the first shape memory alloy body 200 gradually increases and gradually returns to its original state. Then, the outer diameter of the first shape memory alloy body 200 increases and opens the sleeve 100, so that the sleeve 10 0 expands and abuts against the inner wall of the alveolar bone hole, thereby fixing the sleeve 100 in the hole of the alveolar bone, stretching the second shape memory alloy body 300 in a low temperature state to reduce the outer diameter of the second shape memory alloy body 300, and inserting the second shape memory alloy body 300 into the mounting hole 210 of the first shape memory alloy body 200. Due to the high temperature of the human oral cavity, the second shape memory alloy body 300 returns to its original shape, and the outer diameter of the second shape memory alloy body 300 increases and is interference fit with the mounting hole 210, so that the second shape memory alloy body 300 is fixed in the mounting hole 210. The top of the second shape memory alloy body 300 extends above the sleeve 100, and the repair denture is installed on the top of the second shape memory alloy body 300.

[0042] In some embodiments, the outer wall of the sleeve 100 is provided with an outwardly protruding portion 130. The outwardly protruding portion 130 surrounds the circumference of the sleeve 100, forming a ring-shaped outwardly protruding structure on the outer wall of the sleeve 100. When the sleeve 100 is inserted into the alveolar bone hole, the outwardly protruding portion 130 abuts against the inner wall of the alveolar bone hole to form a snap-fit ​​structure. There are multiple outwardly protruding portions 130, all of which are spaced apart from each other from top to bottom. Multiple snap-fit ​​structures are formed between the outer wall of the sleeve 100 and the inner wall of the alveolar bone hole, ensuring a more secure installation of the sleeve 100 and the alveolar bone hole.

[0043] In some embodiments, an inner convex portion 111 is provided on the inner wall of the through hole 110 in the sleeve 100. The inner convex portion 111 protrudes toward the axis of the through hole 110 and surrounds the circumference of the through hole 110. The inner convex portion 111 abuts against the outer wall of the first shape memory alloy body 200, thereby forming a snap-fit ​​structure between the inner wall of the through hole 110 and the first shape memory alloy body 200. There are multiple inner convex portions 111, all of which are spaced apart from each other from top to bottom. Multiple snap-fit ​​structures are formed between the first shape memory alloy body 200 and the inner wall of the through hole 110, which helps to securely install the first shape memory alloy body 200 in the through hole 110.

[0044] In some embodiments, the mounting hole 210 is a stepped hole, with the diameter of the upper section of the mounting hole 210 being smaller than the diameter of the lower section. The outer shape of the second shape memory alloy body 300 matches the shape of the mounting hole 210. When the second shape memory alloy body 300 is inserted into the mounting hole 210, the difference in diameter between the upper and lower sections of the mounting hole 210 allows the second shape memory alloy body 300 to be snapped into place within the mounting hole 210. The inner sidewall of the mounting hole 210 has at least one flat surface, thereby limiting the rotational freedom of the second shape memory alloy body 300 within the mounting hole 210. The lower section of the mounting hole 210 is shaped like a hexagonal socket, and the shape of the second shape memory alloy body 300 matches that of the mounting hole 210, resulting in a different cross-sectional shape between the upper and lower sections of the second shape memory alloy body 300, thereby ensuring a secure fit within the mounting hole 210.

[0045] In some embodiments, there are at least three elongated slots 120, all of which are spaced apart along the circumference of the sleeve 100, resulting in a plurality of elongated slots distributed on the sidewall of the sleeve 100. When the first shape memory alloy body 200 expands the sleeve 100, multiple expansion structures are formed at the bottom of the sleeve 100, facilitating a secure fit between the bottom of the sleeve 100 and the alveolar bone hole. If the length of the elongated slots 120 extending from bottom to top is greater than half of the vertical length of the sleeve 100, then after the sleeve 100 is expanded by the first shape memory alloy body 100, the outward expansion of the lower portion of the sleeve 100 increases, facilitating a secure fit of the lower portion of the sleeve 100 within the alveolar bone hole.

[0046] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A dental implant, characterized in that: include: A sleeve having a through hole extending vertically through the sleeve, a side wall of the sleeve having a long slot extending upward from a bottom end of the sleeve and extending through the side wall of the sleeve; a first shape memory alloy body disposed in the through hole, the first shape memory alloy body and the through hole having an interference fit, and a mounting hole being provided on a top of the first shape memory alloy body; a second shape memory alloy body, which is inserted into the mounting hole, the second shape memory alloy body and the mounting hole having an interference fit, and the top of the second shape memory alloy body protruding above the sleeve; The first shape memory alloy body is cooled, stretched, and its outer diameter is reduced. The first shape memory alloy body is inserted into the through hole. Due to the high temperature of the human oral cavity, the first shape memory alloy body returns to its original shape, and its outer diameter increases, supporting the sleeve, causing the bottom end of the sleeve to expand outward. The second shape memory alloy body is stretched to reduce its outer diameter, and the second shape memory alloy body is inserted into the mounting hole. Due to the high temperature of the human oral cavity, the second shape memory alloy body returns to its original shape, and the outer diameter of the second shape memory alloy body increases to form an interference fit with the mounting hole. An outer wall of the sleeve is provided with an outer convex portion, the outer convex portion surrounds the circumference of the sleeve and protrudes outward; An inner convex portion is provided on the inner wall of the through hole. The inner convex portion surrounds the through hole in a circle along the circumference of the through hole and protrudes toward the axis of the through hole.

2. The dental implant according to claim 1, wherein: There are multiple convex parts, and all the convex parts are distributed in sequence from top to bottom.

3. The dental implant according to claim 1, wherein: There are multiple inner convex parts, and all the inner convex parts are distributed in sequence from top to bottom.

4. The dental implant according to claim 1, wherein: The mounting hole is a stepped hole, the aperture of the upper section of the mounting hole is smaller than the aperture of the lower section, and the shape of the second shape memory alloy body matches the shape of the mounting hole.

5. The dental implant according to claim 4, wherein: The inner side wall of the mounting hole has at least one plane.

6. The dental implant according to claim 5, wherein: The shape of the lower section of the mounting hole is a hexagonal hole.

7. The dental implant according to claim 1, wherein: There are at least three long slot holes, and all the long slot holes are distributed in sequence along the circumference of the sleeve.

8. The dental implant according to claim 1, wherein: The length of the long slot extending from bottom to top is greater than half of the length of the sleeve in the up-down direction.

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