阅读说明：本技术 牙种植体 (Dental implant ) 是由 李敬 张春雨 陈贤帅 于 2021-01-14 设计创作，主要内容包括：本发明公开了一种牙种植体,包括：套筒,其设有通孔,所述通孔沿上下方向贯通所述套筒,所述套筒的侧壁上设有长槽孔,所述长槽孔从所述套筒的底端向上延伸,所述长槽孔贯穿所述套筒的侧壁；第一形状记忆合金体,其设于所述通孔中,所述第一形状记忆合金体与所述通孔过盈配合,所述第一形状记忆合金体的顶部设有安装孔；第二形状记忆合金体,其插入所述安装孔中,所述第二形状记忆合金体与所述安装孔过盈配合,所述第二形状记忆合金体的顶部伸出于所述套筒上方。本发明的牙种植体,植入时无需在牙槽骨攻螺纹孔,使得牙种植体的植入手术难度大大降低。本发明可应用于植牙中。(The invention discloses a dental implant, comprising: the sleeve is provided with a through hole which penetrates through the sleeve in the vertical direction, a long slotted hole is formed in the side wall of the sleeve, the long slotted hole extends upwards from the bottom end of the sleeve, and the long slotted hole penetrates through the side wall of the sleeve; the first shape memory alloy body is arranged in the through hole, the first shape memory alloy body is in interference fit with the through hole, and the top of the first shape memory alloy body is provided with a mounting hole; the second shape memory alloy body is inserted into the mounting hole, the second shape memory alloy body is in interference fit with the mounting hole, and the top of the second shape memory alloy body extends out of the upper portion of the sleeve. The dental implant of the invention does not need tapping a threaded hole on the alveolar bone during implantation, so that the difficulty of the implantation operation of the dental implant is greatly reduced. The invention can be applied to tooth implantation.)

1. A dental implant, characterized by: the method comprises the following steps:

the sleeve (100) is provided with a through hole (110), the through hole (110) penetrates through the sleeve (100) in the vertical direction, a long slotted hole (120) is formed in the side wall of the sleeve (100), the long slotted hole (120) extends upwards from the bottom end of the sleeve (100), and the long slotted hole (120) penetrates through the side wall of the sleeve (100);

the first shape memory alloy body (200) is arranged in the through hole (110), the first shape memory alloy body (200) is in interference fit with the through hole (110), and the top of the first shape memory alloy body (200) is provided with a mounting hole (210);

a second shape memory alloy body (300) inserted into the mounting hole (210), the second shape memory alloy body (300) being in interference fit with the mounting hole (210), a top of the second shape memory alloy body (300) protruding above the sleeve (100).

2. The dental implant of claim 1, wherein: the outer side wall of the sleeve (100) is provided with an outer convex part (130), the outer convex part (130) surrounds one circle along the circumferential direction of the sleeve (100), and the outer convex part (130) protrudes outwards.

3. The dental implant of claim 2, wherein: the number of the outer convex parts (130) is multiple, and all the outer convex parts (130) are sequentially distributed at intervals from top to bottom.

4. The dental implant of claim 1, wherein: the inner wall of the through hole (110) is provided with an inner convex part (111), the inner convex part (111) surrounds the through hole (110) in the circumferential direction, and the inner convex part (111) protrudes towards the axis of the through hole (110).

5. The dental implant of claim 4, wherein: the number of the inner convex parts (111) is multiple, and all the inner convex parts (111) are sequentially distributed at intervals from top to bottom.

6. The dental implant of claim 1, wherein: the mounting hole (210) is a stepped hole, the aperture of the upper section of the mounting hole (210) is smaller than that of the lower section of the mounting hole, and the shape of the second shape memory alloy body (300) is matched with the shape of the mounting hole (210).

7. The dental implant of claim 6, wherein: the inner side wall of the mounting hole (210) is provided with at least one plane.

8. The dental implant of claim 7, wherein: the lower section of the mounting hole (210) is in the shape of a hexagon socket.

9. The dental implant of claim 1, wherein: the number of the long slotted holes (120) is at least three, and all the long slotted holes (120) are sequentially distributed at intervals along the circumferential direction of the sleeve (100).

10. The dental implant of claim 1, wherein: the length of the long slotted hole (120) extending from bottom to top is larger than one half of the length of the sleeve (100) in the vertical direction.

Technical Field

The invention relates to the field of dental implants, in particular to a dental implant.

Background

The dental implant is used for being implanted into upper and lower jawbones at the edentulous part of the oral cavity, and a repair false tooth is arranged at the upper part of the dental implant to realize edentulous repair. The planting part of the existing dental implant adopts a threaded column shape, a threaded hole is tapped on the alveolar bone during planting, and the threaded hole is in threaded connection with the planting part so that the dental implant is fixed on the alveolar bone. However, the operation of tapping the threaded hole by the alveolar bone is more cumbersome, and the implantation part of the dental implant needs to be carefully screwed into the threaded hole, so that the damage to the threaded structure is avoided, and the implantation operation difficulty of the dental implant is higher.

Disclosure of Invention

The present invention is directed to a dental implant that solves one or more of the problems set forth in the prior art and provides at least one of the advantages of the present invention.

The technical scheme adopted for solving the technical problems is as follows:

a dental implant, comprising:

the sleeve is provided with a through hole which penetrates through the sleeve in the vertical direction, a long slotted hole is formed in the side wall of the sleeve, the long slotted hole extends upwards from the bottom end of the sleeve, and the long slotted hole penetrates through the side wall of the sleeve;

the first shape memory alloy body is arranged in the through hole, the first shape memory alloy body is in interference fit with the through hole, and the top of the first shape memory alloy body is provided with a mounting hole;

the second shape memory alloy body is inserted into the mounting hole, the second shape memory alloy body is in interference fit with the mounting hole, and the top of the second shape memory alloy body extends out of the upper portion of the sleeve.

The invention has the beneficial effects that: when the dental implant is implanted, a hole matched with the outer diameter of the sleeve is drilled in the alveolar bone, the first shape memory alloy body is cooled, the shape of the first shape memory alloy body can be changed after the temperature is reduced, the first shape memory alloy body is stretched to reduce the outer diameter of the first shape memory alloy body, the first shape memory alloy body is inserted into the through hole of the sleeve, the sleeve is inserted into the hole of the alveolar bone, the first shape memory alloy body is restored to the original shape due to the higher temperature of the oral cavity of a human body, the outer diameter of the first shape memory alloy body is increased and the sleeve is supported, the bottom end of the sleeve is outwards expanded due to the long slotted hole of the sleeve extending upwards from the bottom end, so that the sleeve is fixed in the hole of the alveolar bone, then the second shape memory alloy body is stretched to reduce the outer diameter of the second shape memory alloy body, the second shape memory alloy body is inserted into the mounting hole, and the temperature of the oral cavity of the human body, restoring the second shape memory alloy body, enlarging the outer diameter of the second shape memory alloy body, and performing interference fit with the mounting hole, wherein the top of the second shape memory alloy body extends out of the upper part of the sleeve and is used for mounting the dental prosthesis; therefore, when the dental implant is implanted, the thread hole does not need to be tapped on the alveolar bone, so that the difficulty of the implant operation of the dental implant is greatly reduced.

As a further improvement of the above technical solution, the outer side wall of the sleeve is provided with an outer protrusion, the outer protrusion surrounds the sleeve for one circle along the circumferential direction of the sleeve, and the outer protrusion protrudes outwards.

When the sleeve is inserted into the alveolar bone hole, the outer convex part of the outer wall of the sleeve is abutted to the inner wall of the alveolar bone hole, and the outer convex part is embedded into the inner wall of the alveolar bone hole, so that the sleeve is stably installed in the alveolar bone hole.

As a further improvement of the above technical solution, there are a plurality of the convex portions, and all the convex portions are sequentially distributed at intervals from top to bottom.

A plurality of outer convex parts from top to bottom are arranged on the outer wall of the sleeve at intervals, so that a plurality of buckling positions are formed between the outer wall of the sleeve and the alveolar bone hole, and the sleeve is stably arranged in the alveolar bone hole.

As a further improvement of the above technical solution, an inner convex portion is provided on an inner wall of the through hole, the inner convex portion surrounds the through hole for a circle along a circumferential direction of the through hole, and the inner convex portion protrudes toward an axis of the through hole.

After the first shape memory alloy body is inserted into the through hole of the sleeve, the temperature is raised to enable the first shape memory alloy body to be in interference fit with the through hole, the inner convex part of the inner wall of the through hole is abutted against the first shape memory alloy body, and the inner convex part is embedded into the first shape memory alloy body, so that the first shape memory alloy body is stably installed in the through hole.

As a further improvement of the technical scheme, the number of the inner convex parts is multiple, and all the inner convex parts are sequentially distributed at intervals from top to bottom.

The inner convex parts are arranged on the inner wall of the through hole at intervals from top to bottom, so that a plurality of buckling positions are formed between the inner wall of the through hole and the first shape memory alloy body, and the first shape memory alloy body is stably arranged in the through hole.

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 of the mounting hole, and the shape of the second shape memory alloy body matches the shape of the mounting hole.

The aperture of the upper section of the mounting hole is smaller than that of the lower section of the mounting hole, the second shape memory alloy body is buckled in the mounting hole by utilizing the aperture difference of the upper section and the lower section of 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.

As a further improvement of the technical scheme, the inner side wall of the mounting hole is provided with at least one plane.

The inner side wall of the mounting hole is provided with at least one plane for limiting the freedom of rotation of the second shape memory alloy body in the mounting hole.

As a further improvement of the above technical solution, the lower section of the mounting hole is a hexagon socket.

The lower section of the mounting hole is a hexagon socket, and the shape of the second shape memory alloy body is matched with that of the mounting hole, so that the second shape memory alloy body forms an upper section and a lower section with different shapes, and the second shape memory alloy body is more stably mounted in the mounting hole.

As a further improvement of the above technical solution, there are at least three long slots, and all the long slots are sequentially distributed at intervals along the circumferential direction of the sleeve.

The plurality of long slotted holes are sequentially distributed at intervals along the circumferential direction of the sleeve, and after the first shape memory alloy body supports the sleeve, the bottom end of the sleeve forms a buckle structure along the circumferential direction, so that the sleeve and the alveolar bone hole are stably combined.

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

The length of the long slotted hole extending from bottom to top is larger than one half of the length of the sleeve in the vertical direction, so that after the lower portion of the sleeve is supported by the first shape memory alloy body, the expanded caliber of the lower portion of the sleeve is larger, and the lower portion of the sleeve is stably installed in the alveolar bone hole.

Drawings

The invention is further described with reference to the accompanying drawings and examples;

FIG. 1 is an axial schematic view of an embodiment of a dental implant according to the present invention;

FIG. 2 is an assembled schematic view of an embodiment of a dental implant according to the present invention;

FIG. 3 is a schematic cross-sectional view of one embodiment of a dental implant according to the present invention;

FIG. 4 is a schematic cross-sectional view of a sleeve of an embodiment of a dental implant according to the present invention;

FIG. 5 is a schematic cross-sectional view of a first shape memory alloy body according to an embodiment of the present invention;

FIG. 6 is an axial view of a second shape memory alloy body according to an embodiment of the present invention.

100. A sleeve, 110, a through hole, 111, an inner convex part, 120, a long slot hole, 130, an outer convex part, 200, a first shape memory alloy body, 210, a mounting hole, 300, a second shape memory alloy body.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 6, the dental implant of the present invention is made as follows:

the dental implant comprises 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, the through hole 110 penetrates the sleeve 100 in the vertical direction, and the sleeve 100 has a cylindrical structure. The sidewall of the sleeve 100 is provided with a slotted hole 120, the slotted hole 120 extends upward from the bottom end of the sleeve 100, and the slotted hole 120 penetrates through the sidewall of the sleeve 100. The first shape memory alloy body 200 is disposed in the through hole 110, the first shape memory alloy body 200 is in interference fit with the through hole 110, and the outer wall of the first shape memory alloy body 200 abuts against the inner wall of the through hole 110. The first shape memory alloy body 200 has a mounting hole 210 at the top, and the mounting hole 210 communicates with 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 is in interference fit with the mounting hole 210, 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 is protruded above the sleeve 100 through the through hole 110, and 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, which are materials composed of two or more metal elements having a shape memory effect through thermo-elastic and martensitic transformation and inversion thereof, and the shape memory alloys have a deformation recovery capability due to thermo-elastic martensitic transformation occurring inside the materials during the deformation process, 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 200, and the second shape memory alloy 300 are separated and separately placed, the first shape memory alloy 200 and the second shape memory alloy 300 are stored at a low temperature, the first shape memory alloy 200 is stretched such that the outer diameter thereof is reduced, then the first shape memory alloy 200 is inserted into the through hole 110 of the sleeve 100, the sleeve 100 can be smoothly inserted into the predetermined hole of the alveolar bone because the first shape memory alloy 200 does not prop open the sleeve 100 at this time, the temperature of the first shape memory alloy 200 is gradually increased and gradually restored to the original state because the temperature of the oral cavity of the human body is high, then the outer diameter of the first shape memory alloy 200 is increased and the sleeve 100 is propped open, the bottom of the sleeve 100 is expanded and abuts against the inner wall of the alveolar bone hole, so that the sleeve 100 is fixed in the hole of the alveolar bone, the second shape memory alloy 300 is stretched at a low temperature, the outer diameter of the second shape memory alloy body 300 is reduced, the second shape memory alloy body 300 is inserted into the mounting hole 210 of the first shape memory alloy body 200, the second shape memory alloy body 300 is restored due to the higher temperature of the oral cavity of the human body, the outer diameter of the second shape memory alloy body 300 is increased and then is in 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 out of the sleeve 100, and the prosthetic tooth is mounted on the top of the second shape memory alloy body 300.

In some embodiments, the outer wall of the sleeve 100 is provided with an outer protrusion 130, the outer protrusion 130 protrudes outwards, the outer protrusion 130 surrounds the sleeve 100 along a circumference, so that a circle of convex ring structure is formed on the outer wall of the sleeve 100, and when the sleeve 100 is inserted into the alveolar bone hole, the outer protrusion 130 abuts against the inner wall of the alveolar bone hole to form a clamping structure. Outer convex part 130 has a plurality ofly, and all outer convex part 130 from the top down interval distribution in proper order forms a plurality of joint structures between the outer wall of sleeve 100 and the alveolar bone downthehole wall for sleeve 100 and alveolar bone downthehole installation more stabilize.

In some embodiments, an inner protrusion 111 is disposed on an inner wall of the through hole 110 in the sleeve 100, the inner protrusion 111 protrudes toward an axis of the through hole 110, the inner protrusion 111 surrounds the through hole 110 circumferentially, and the inner protrusion 111 abuts against an outer wall of the first shape memory alloy body 200, so that a snap-fit structure is formed between the inner wall of the through hole 110 and the first shape memory alloy body 200. The plurality of inner protrusions 111 are sequentially distributed at intervals from top to bottom, and a plurality of clamping structures are formed between the first shape memory alloy body 200 and the inner wall of the through hole 110, so that the first shape memory alloy body 200 is stably installed in the through hole 110.

In some embodiments, the mounting hole 210 is a stepped hole, the diameter of the upper section of the mounting hole 210 is smaller than the diameter of the lower section, the shape of the second shape memory alloy body 300 matches the shape of the mounting hole 210, the second shape memory alloy body 300 is inserted into the mounting hole 210, and the difference in the diameters of the upper and lower sections of the mounting hole 210 causes the second shape memory alloy body 300 to be fastened in the mounting hole 210. The inner sidewall of the mounting hole 210 has at least one flat surface so that the freedom of rotation of the second shape memory alloy body 300 in the mounting hole 210 is limited. The lower section of the mounting hole 210 is shaped as a hexagon socket, and the shape of the second shape memory alloy body 300 is matched with the mounting hole 210, so that the cross-sectional shape of the upper section and the cross-sectional shape of the lower section of the second shape memory alloy body 300 are different, and the second shape memory alloy body 300 is stably mounted in the mounting hole 210.

In some embodiments, there are at least three long slots 120, and all the long slots 120 are sequentially spaced along the circumference of the sleeve 100, so that a plurality of long slots are distributed on the sidewall of the sleeve 100, and when the first shape memory alloy body 200 props up the sleeve 100, the bottom of the sleeve 100 forms a plurality of expansion structures, which helps to stably mount the bottom of the sleeve 100 and the alveolar bone hole. The length of the elongated slot 120 extending from bottom to top is greater than one half of the length of the sleeve 100 in the vertical direction, so that after the sleeve 100 is expanded by the first shape memory alloy body 100, the diameter of the lower portion of the sleeve 100 expanding outwards is larger, which is helpful for the lower portion of the sleeve 100 to be stably installed in the alveolar bone hole.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.