CN107811716B

CN107811716B - Oral implant

Info

Publication number: CN107811716B
Application number: CN201711274331.4A
Authority: CN
Inventors: 魏洪武
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-06
Filing date: 2017-12-06
Publication date: 2021-01-15
Anticipated expiration: 2037-12-06
Also published as: CN107811716A

Abstract

The invention discloses an oral implant, which comprises an outer shell and an implantation hole arranged in the outer shell, wherein the outer shell comprises a cylindrical main body part with external threads, a truncated cone-shaped inclined shoulder part arranged at the top of the main body part and a hemispherical spherical bottom arranged at the bottom of the main body part; the oral implant provided by the invention has the advantages of good initial stability, high success rate of implantation, good bacterial sealing performance of the connection between the implant and the abutment, and more stable connection.

Description

Oral implant

Technical Field

The invention relates to the technical field of medical equipment, in particular to an oral implant.

Background

The dental implant is implanted into the upper and lower jawbone of edentulous part of human body through surgical operation, and after the operation wound is healed, the artificial tooth repairing device is mounted on the upper part of the dental implant. The key point of the implant is the implant part which is equivalent to the tooth root of a real tooth and plays a vital role in fixing the whole tooth.

At present, the following three forms of common implants exist:

first, the abutment is connected to the implant by a screw-retained implant (similar to a Nobel implant). The implant fixed by the screw can not achieve complete bacteria sealing, and the central screw can be rusted or broken due to overlarge stress when the implant is subjected to lateral force. Should not implant the planting body too deeply in the planting process, because there is the hollow screw hole in the middle of the base station, select the base station of overlength to be liable to take place the rupture of base station.

Secondly, the connection mode of the abutment and the implant is 1.5 degree taper retention (similar to a bicon implant). Although this implant does not have the problems of poor sealing of the threaded connection and susceptibility to galling and breakage, it does not require initial stability during implantation, and therefore, when used for immediate loading, it has unsatisfactory results and is prone to implant failure. Meanwhile, the implant is difficult to take out when the direction of the implant needs to be adjusted.

Thirdly, the connection mode of the abutment and the implant is a large taper retention implant, and the lower part of the abutment and the implant is provided with a screw for assisting in retention (similar to an Ankylos implant). The implant is the same as the first implant, the implant fixed by the screw can not achieve complete bacteria sealing, and the central screw can be rusted or broken due to overlarge stress when the implant is subjected to lateral force.

In conclusion, the conventional implant has the problems of poor initial stability, poor bacteria tightness of threaded connection between the implant and the abutment and easiness in burrs or breakage of screws.

Disclosure of Invention

The invention aims to provide an oral implant, which solves the problems in the prior art, and has the advantages of good initial stability, high success rate of implantation, good bacterial sealing performance of the connection between the implant and an abutment, and more stable connection.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides an oral implant, which comprises an outer shell and an implantation hole arranged in the outer shell, wherein the outer shell comprises a cylindrical main body part with external threads, a truncated cone-shaped inclined shoulder part arranged at the top of the main body part and a hemispherical spherical bottom part arranged at the bottom of the main body part, a first threaded area and a second threaded area are sequentially arranged on the main body part from top to bottom, the thread pitch of the first threaded area is smaller than that of the second threaded area, the implantation hole comprises a tapered hole formed from the top end of the inclined shoulder part downwards and an inner hexagonal hole with an inner hexagonal cross section arranged at the bottom of the tapered hole, and the maximum diameter of the inner hexagonal hole is smaller than the minimum diameter of the tapered hole.

Preferably, the height of the sloping shoulder is 1.45 mm.

Preferably, the first threaded zone has a height of 1.5mm, a thread depth of 0.25mm and a thread pitch of 0.1 mm.

Preferably, the second threaded zone has a thread depth of 0.6mm and a thread pitch of 0.8 mm.

Preferably, the tapered hole is disposed in the center of the inner portion of the outer shell, and the tapered hole and the inner hexagonal hole are concentric holes.

Preferably, the hole wall of the conical hole is inclined inwards by 1.5 degrees, and the depth of the conical hole is 4 mm.

Preferably, the depth of the inner hexagonal hole is 2 mm.

Preferably, the outer shell surface is surface treated by SLA or RBM.

Compared with the prior art, the invention has the following beneficial technical effects:

1. according to the oral implant provided by the invention, the structure of the implant shell is arranged, so that the initial stability of the implant is better, the capacity of instantly bearing load is achieved, and the success rate of implantation is high.

2. According to the oral implant provided by the invention, the implant hole in the implant is of a plug-in type structure, the abutment and the implant are connected without threaded connection, the sealing performance is better, the microbial leakage can be effectively prevented, and the connection is firmer; the implantation hole bottom is hexagonal hole in the socket, conveniently lays the planting body carrier and implants the instrument, makes the planting body enough rotatory implantation, has avoided knocking the discomfort that the planting body brought of implanting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic view of a front structure of an oral implant according to the present invention;

FIG. 2 is a schematic view of a front cross-sectional structure of an oral implant according to the present invention;

FIG. 3 is a schematic top view of the oral implant of the present invention;

in the figure: 1-main body part, 2-inclined shoulder part, 3-spherical bottom part, 4-tapered hole, 5-inner hexagonal hole, 11-first thread area and 12-second thread area.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide an oral implant to solve the problems in the prior art.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides an oral implant, which comprises an outer shell and an implantation hole arranged in the outer shell, as shown in figures 1-3.

The surface of the outer shell is subjected to SLA or RBM surface treatment; the outer shell is specifically structured in such a way that the outer shell is composed of a cylindrical main body part 1 with external threads, a truncated cone-shaped inclined shoulder part 2 arranged at the top of the main body part 1 and a hemispherical spherical bottom part 3 arranged at the bottom of the main body part 1, wherein a first threaded area 11 and a second threaded area 12 are sequentially arranged on the whole main body part 1 from top to bottom, the height of the first threaded area 11 is 1.5mm, the thread depth is 0.25mm, the thread pitch is 0.1mm, the thread depth of the second threaded area 12 is 0.6mm, and the thread pitch is 0.8mm, and the sectional thread arrangement can enable the initial stability of the whole implant to be higher, thereby improving the success rate of planting; the height of the truncated cone-shaped oblique shoulder part 2 is 1.45mm, so that the oblique shoulder resistance of the whole implant is increased; the spherical bottom 3 is hemispherical, so that important gingival tissues can be protected when the implant is implanted;

the implantation hole comprises a tapered hole 4 formed downwards from the top end of the inclined shoulder part 2 and an inner hexagonal hole 5 with an inner hexagonal section and arranged at the bottom of the tapered hole 4, and the maximum diameter of the inner hexagonal hole 5 is smaller than the minimum diameter of the tapered hole 4; the conical hole 4 is arranged at the center of the inner part of the outer shell, and the conical hole 4 and the inner hexagonal hole 5 are concentric holes; the hole wall of the conical hole 4 is inclined inwards by 1.5 degrees, the depth of the conical hole 4 is 4mm, and the depth of the inner hexagonal hole 5 is 2 mm; the top of the implantation hole of the implant adopts a structural form of a tapered hole 4, so that the base station is connected with the implant in a plug-in connection mode, the base station is connected with the implant without threaded connection, the sealing performance is better, the microbial leakage can be effectively prevented, the problem that screws are frizzy and broken due to the screw connection of the base station and the implant is solved, and the base station is connected with the implant more firmly; the setting in hexagonal hole 5 of 4 bottoms in bell mouth is conveniently laid the planting body carrier and is planted the instrument, makes the planting body enough rotatory implantation, has avoided knocking the discomfort that the planting body brought of planting.

It should be noted that the size design of the specific structure of the oral implant provided by the present invention is not limited to the size parameters described in the present invention, and the oral implant of the present invention can be flexibly designed and changed in size parameters according to application requirements.

The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.

Claims

1. An oral implant, comprising: the implantation hole comprises a tapered hole formed downwards from the top end of the oblique shoulder part and an inner hexagonal hole with an inner hexagonal cross section and arranged at the bottom of the tapered hole, and the maximum diameter of the inner hexagonal hole is smaller than the minimum diameter of the tapered hole; the hole wall of the conical hole inclines inwards by 1.5 degrees, and the depth of the conical hole is 4 mm.

2. The oral implant of claim 1, wherein: the height of the oblique shoulder is 1.45 mm.

3. The oral implant of claim 1, wherein: the height of the first thread area is 1.5mm, the thread depth is 0.25mm, and the thread pitch is 0.1 mm.

4. The oral implant of claim 1, wherein: the thread depth of the second thread area is 0.6mm, and the thread pitch is 0.8 mm.

5. The oral implant of claim 1, wherein: the taper hole is arranged at the center of the inner part of the outer shell, and the taper hole and the inner hexagonal hole are concentric holes.

6. The oral implant of claim 1, wherein: the depth of the inner hexagonal hole is 2 mm.

7. The oral implant of claim 1, wherein: the surface of the outer shell is subjected to SLA or RBM surface treatment.