KR20190019604A - Implant assembly - Google Patents

Abstract

The present invention relates to an implant assembly which comprises: a fixture including a body having a hollow hole formed therein and a side flow unit, which is connected to the hollow hole, formed on a circumferential surface, and a screw unit formed on the circumference of the body; and an abutment coupled to the top of the fixture, and having a plurality of screw unit flow holes arranged at regular intervals on the surface so as to be penetrated in a vertical direction. Therefore, a screw loosening phenomenon can be fundamentally prevented by attaching an alveolar bone to the screw unit.

Description

[0001] IMPLANT ASSEMBLY [0002]

[0001] The present invention relates to an implant assembly, and more particularly, to an implant assembly that improves the shape and structure of a fixture to prevent a fixture fixed to the alveolar bone from flowing or a screw loosening phenomenon occurring, To an implant assembly capable of greatly improving the time and success rate of implant treatment.

Generally, an implant assembly is an artificial tooth structure made to replace a lost tooth. The artificial tooth structure is firmly coupled to an alveolar bone, and then crown (artificial tooth), which is similar to a real tooth, And provides the same effect.

Such an implant assembly largely consists of a fixture having a threaded portion and an abutment coupled to an upper portion of the fixture.

Implantation is performed by implanting a screw-type titanium fixture serving as a root of a tooth into the alveolar bone (gum bone), and then, when the buried fixture is fused with the alveolar bone around the alveolar bone, And then finally joining the crown to the abutment.

Typically, a fixture formed with a threaded portion has an advantage that it can be easily inserted into the alveolar bone, but the outer circumferential surface itself has a smooth structure, which makes it difficult to initial fix the screw loosening phenomenon because the bone- .

In recent years, in order to solve such a problem, an implant having a structure for promoting pubic muscle tissue and adhesion after placing a fixture in Korean Patent Laid-Open Publication No. 10-2017-0013659 (hereinafter referred to as "Prior Art & .

1, the implant assembly according to the prior art includes a plurality of drug discharging portions 13 formed on the outer circumferential surface of the fixture 10, and a drug cartridge (not shown) 20 are installed.

That is, when the fixture 10 is placed on the alveolar bone, the drug of the drug cartridge 20 promotes the growth and adhesion of the alveolar bone through the drug discharge hole 13 so that the fixture 10 can be fixed in a short period of time And the alveolar bone is introduced into the drug discharge hole 13 to maximize the adhesion relationship between the fixture 10 and the alveolar bone.

However, according to the prior art, since the fixture 10, which is a component of the implant assembly, is manufactured in a cylindrical structure, in order to place the fixture 10 into the alveolar bone, alveolar bone must be shaved as much as the diameter of the fixture, There is a problem that it takes much time to re-form the alveolar bone.

The fixture structure of the fixture 10 by the screw portion 11 has no problem with general normal stress (occlusal force) generated when chewing food, but when the lateral stress acts, the fixture 10 is fine So that the screw loosening phenomenon still occurs.

This is because, although the alveolar bone and the fixture 10 are adhered to each other, the threaded portion 11 formed on the fixture 10 maintains the screwed relationship with the alveolar bone at all times, so that the threading can be always released.

In addition, although the conventional fixture 10 is filled with allografts or xenografts other than the self-alveolar bone to shorten the period of reformation of the alveolar bone, when a living body or artificial tissue other than the self-living tissue is applied, Causing inflammation or osteonecrosis.

Korean Patent Registration No. 10-1298246 (Aug. 13, 2013) Korean Patent Publication No. 10-2017-0013659 (Feb.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the shape and structure of a fixture to prevent a fixture fixed to an alveolar bone from flowing or a screw loosening phenomenon to occur The present invention also provides an implant assembly which can significantly improve the duration and success rate of implantation.

It is also an object of the present invention to provide an implant assembly which can prevent side effects on the immune system by filling the inside of the fixture with a self-alveolar bone, and can significantly shorten the period of adhesion of the alveolar bone to the fixture.

That is, in the case of the existing fixture, the alveolar bone is destroyed and deleted as much as the space in which the fixture is inserted. However, according to the present invention, the alveolar bone is filled in the inner space of the fixture, And the autogenous bone is recycled. At this time, since the other artificial aggregates are not used, there is provided an implant assembly in which no reaction of the immune system occurs.

In addition, the existing implants have a problem in that the growth of the nerves and blood vessels stops at the fixation part, and the blood supply to the fixture is insufficient by the blood vessels on the opposite side of the fixture body, and the gap between the implant and the alveolar bone due to the fatigue of mechanical masticatory force However, the present invention is expected to be free from formation and communication of nerves and blood vessels by securing sufficient space inside and outside of the fixture. Thus, the generation of nerve and blood vessels can restore the feeling of masticatory force and texture The present invention provides an implant assembly that can obtain similar characteristics to natural teeth.

It is also an object of the present invention to provide an implant assembly which can reduce the burden of the jaw joint by greatly reducing the weight of the fixture.

According to an aspect of the present invention, there is provided an implant assembly comprising: a fixture including a body having a hollow formed therein and having a side flow portion connected to the hollow on a circumference thereof, and a thread formed around the body; And an abutment coupled to an upper end of the fixture, wherein a plurality of screw-part flow holes arranged on the surface of the screw part in an interval are vertically penetrated.

The fixture includes an upper fixed block to which the abutment is fastened, a lower fixed block located at a lower portion spaced apart from the upper fixed block and formed to be convex downward, and a lower fixed block connected between the upper fixed block and the lower fixed block A linear connecting member, and the threaded portion which surrounds the linear connecting member from the outside.

The linear connecting member is a member having a four-sided cross-sectional structure in which one end is connected to the upper fixing block and the other end is connected to the lower fixing block. The plurality of linear connecting members are arranged along the circumferential direction of the upper fixing block and the lower fixing block .

The cross-sectional structure of the straight connecting member is configured to have a larger outer surface width than the inner surface width, and both side surfaces of the end surface have a blade surface for cutting the alveolar bone.

And the size of the space is determined by the spacing distance between the straight connecting members and the pitch distance of the screw portion.

The size of the space gradually decreases from the upper portion to the lower portion of the side flow portion.

The fixture has a plurality of side flow channels spaced apart from each other along the circumferential direction of the fixture between two adjacent screw threads along the longitudinal direction and connected to the hollow, and the plurality of side flow channels have the same area, Is formed.

And a nerve guide hole connected to the hollow is formed at the lower end of the fixture.

And a plurality of protruding rings are formed on an upper portion of the fixture along the longitudinal direction.

According to the present invention having the above-described constitution, by forming a plurality of screw part flow holes arranged at a predetermined interval on the circumferential surface of the screw part, it is possible to fundamentally prevent occurrence of screw loosening due to adhesion of the alveolar bone to the screw part .

In addition, the alveolar bone and the blood flow can be distributed in the vertical direction through the screw part flow hole, and the alveolar bone and blood flow can be flowed in the horizontal direction through the side flow part to complete the distribution path of the alveolar bone and the blood flow in the lattice form. By providing blood flow, it has the effect of rapidly recovering the healing speed and sensory function.

In addition, since the fixture is made of a plurality of straight connecting members connecting between the upper fixed block and the lower fixed block, the weight of the fixture can be significantly reduced compared to a conventional cylindrical or conical fixture structure. Accordingly, it is possible to prevent the jaw joint strength from being excessively reduced as much as the weight of the fixture placed on the user's jawbone is reduced, and the material cost can be greatly reduced.

In addition, since both side surfaces of the straight connecting member constitute a blade surface for cutting the alveolar bone, when the fixture is placed in the alveolar bone, the straight connecting member cuts the alveolar bone in such a manner that the alveolar bone can be easily pierced together with the threaded portion. , The alveolar bone is pushed into the inside of the fixture and the alveolar bone is prevented from being lost to the outside while the alveolar bone is filled inside the fixture to prevent the side effects due to the immune system abnormality. Thereby providing an effect of greatly increasing the regeneration and healing speed of the alveolar bone.

In addition, a hollow nerve guide hole is formed in the lower fixation block so that the alveolar nerve can be grown upward, so that the nerve of the root portion concentrated at the lower portion of the alveolar bone is not extinguished by the pressure of the lower fixture block, So that it is possible to feel the stimulation of chewing the food just like the natural teeth, and it is possible to maintain the natural nerve structure of the natural teeth.

The protruding ring is formed on the outer circumferential surface of the upper fixation block to provide a plurality of defense lines functioning to prevent food residue, plaque, plaque, microorganisms, and calculus from intruding below the alveolar bone.

1 is an exploded perspective view showing a structure of an implant assembly according to the prior art.
2 is a perspective view illustrating the configuration of an implant assembly according to an embodiment of the present invention.
FIG. 3 is an exploded perspective view of FIG. 2. FIG.
4 is a front view of Fig.
5 is a plan sectional view of Fig.
FIG. 6 is a partially enlarged view showing a state in which a screw portion flow hole formed in the threaded portion of FIG. 2 is fusion-bonded with the pubic root.
Fig. 7 is a perspective view of the fixture of Fig. 2 viewed from the bottom. Fig.
8 is a perspective view showing a fixture shape according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the implant assembly according to the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and that the inventor should properly interpret the concepts of the terms to best describe their invention It should be construed as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. In addition, since the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It is to be understood that equivalents and modifications are possible.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying FIGS. 2 to 8. FIG.

As shown in the figure, the implant assembly according to the present invention includes a body having a hollow 190 formed therein and a peripheral flow portion 110 connected to the hollow 190 on a circumferential surface thereof, And an abutment 200 coupled to an upper end of the fixture 100 and coupled with a crown.

First, the fixture 100 is a basic element that is placed in a state of being buried in an alveolar bone, and is a basic base member that is osseointegrated with the alveolar bone and maintains a rigid fixed state.

The fixture 100 is provided with a side flow portion 110 for introducing a part of the alveolar bone into the hollow 190 of the fixture 100 so that the alveolar bone can be ossified, A screw portion 120 is formed to allow the insertion of the alveolar bone into the alveolar bone smoothly.

In particular, the fixture 100 according to the present invention includes an upper fixing block 130 to which the abutment 200 is fastened, and a lower fixing block 130 which is located at a lower portion spaced apart from the upper fixing block 130 and protruding downward A lower fixing block 140 having a curved surface 140a and a straight connecting member 150 connecting between the upper fixing block 130 and the lower fixing block 140, And the straight connecting member 150 is wrapped around the straight connecting member 150.

The straight connecting member 150 is a member having a four-sided cross-sectional structure in which one end is connected to the upper fixing block 130 and the other end is connected to the lower fixing block 140. The upper fixing block 130 and the lower And are arranged at equal intervals along the circumferential direction of the fixed block 140.

That is, the fixture 100 has a structure in which a plurality of linear connecting members 150 are arranged in a circumferential direction at mutually spaced intervals.

As the cross-sectional structure of the straight connecting member 150, various shapes other than four sides may be adopted.

The structure of the fixture 100 using the linear connecting member 150 can be greatly reduced in weight compared with a conventional cylindrical or conical fixture structure. Therefore, when the fixture 100 is placed on the user's jawbone, It is possible to prevent the jaw joint strength from being unreasonably increased as the weight of the patient's own weight is reduced, and the material cost can be greatly reduced.

Here, it is preferable that the rectilinear connection member 150 is formed of four to form the appearance of the fixture 100, but the present invention is not limited thereto, and it is possible to fabricate the rectilinear connection member 150 by applying 2 to 3 or 5 or more have.

In addition, the cross-sectional structure of the straight connecting member 150 has a structure in which the outer width L2 is wider than the inner width L1. Both sides of the cross-section are formed by cutting the alveolar bone and cutting the alveolar bone, A blade surface 151 having a structure that can be pushed into the inner space of the blade body 151 can be formed (see FIG. 5).

That is, when the fixture 100 is placed in the alveolar bone, the linear connecting member 150 together with the threaded portion 120 can cut the alveolar bone so that the alveolar bone can be easily inserted into the alveolar bone, (100), thereby preventing the alveolar bone from being lost to the outside and filling the inside of the fixture (100) with the self-alveolar bone.

In addition, the size of the space is determined by the spacing distance between the straight connecting members 150 and the pitch distance of the threaded portion 120 in the side flow distributing unit 110 according to the present invention.

That is, unlike the conventional art in which a hole is artificially formed on the surface of a fixture as in the prior art, the side flow portion 110 applied to the present invention is smoothly formed in the process of forming the thread 120 on the outer circumferential surface of the straight connecting member 150 .

As described above, the side flow distributing unit 110 of the present invention is divided by the straight connecting member 150 and the threaded portion 120 into a larger space than in the prior art. When the fixture 100 is placed on the alveolar bone, Since the autogenous bone is naturally filled in the empty space inside the fixture 100 without being lost to the outside, it is not necessary to use other allografts or heterogeneous bone, and side effects caused by not applying the autogenous bone can be prevented. Thereby providing an effect of greatly increasing the regeneration and healing speed of the alveolar bone.

Of course, in the conventional fixture, a side flow portion is formed to guide a part of the alveolar bone into the fixture. However, since the degree of the alveolar bone is excessively limited, not only the alveolar bone is difficult to enter, There was a problem of necrosis.

The side flow distributing unit 110 of the present invention is configured such that the size of the space gradually decreases from the upper portion to the lower portion to correspond to the size of the space formed inside the fixture 100 when the fixture 100 rotates , It is preferable that the fixture 100 smoothly inflow the alveolar bone piece moving toward the upper side when digging the alveolar bone.

On the other hand, a plurality of threaded portion communication holes 121 are formed on the circumferential surface of the screw portion 120 formed around the outer circumferential surface of the fixture 100 at predetermined intervals.

That is, by forming the threaded portion communicating hole 121 having a structure that penetrates the surface of the threaded portion 120 in the up and down direction, it is possible to fundamentally prevent the occurrence of screw loosening due to adhesion of the alveolar bone to the threaded portion 120 There is an effect.

Further, the threaded portion communicating hole 121 formed in the threaded portion 120 guides the alveolar bone and the blood flow in the vertical direction, and guides the alveolar bone in the horizontal direction with respect to the side flow-through portion 110, Induces the formation of a grid-like alveolar bone and blood flow tissue to be connected, and provides an effect of rapidly recovering the cure speed and sensory function by smooth blood supply.

Although it is preferable to form four to eight threaded flow holes 121 in the circumferential direction of the threaded portion 120, the number of the threaded flow holes 121 is not limited to four, Or 8 or more.

A locking groove 131 is formed in the upper fixing block 130 to fasten the abutment 200 to be described later and a protruding ring 132 is provided on the outer circumferential surface to prevent infiltration of bacteria and foreign matter into the lower portion of the alveolar bone. .

The protruding ring 131 serves as a step-by-step defense line to prevent invasion of external food residues, plaque, plaque, microorganisms, calculus, etc., as three independent members.

In the case of the conventional screw type, plaque, plaque, food, microorganisms, calculus and the like are piled up from the abutment 200 to be pushed downward and continuously moved below the alveolar bone to cause failure of the implant. A plurality of protruding rings 132 according to the present invention serves as a geometrically advantageous external defense line to prevent linear movement of plaque, plaque, food, microorganisms, tartar, etc. from top to bottom.

At least two protruding rings 131 may be provided.

In addition, a hollow nerve guide hole 141 is formed in the lower fixation block 140 so that the alveolar nerve can be grown upward.

In other words, the nerve guide hole 141 formed in the lower fixation block 140 is formed such that the nerve of the root portion concentrated at the lower portion of the alveolar bone is not destroyed by the pressure applied by the lower fixture block 140, So that the user can feel the stimulation of chewing the food like the natural tooth.

In addition, the nerve guide hole 141 is intended to allow nerves and blood vessels around the alveolar bone, which were located at the base of the natural tooth, to flow into the fixture. The surface area of the base of the nerve guide hole 141 is widened By dispersing the vertical force according to the work, the alveolar bone and the fixture 100 are prevented from being irritated or prematurely removed, and the life span of the alveolar bone and the fixture 100 can be prolonged, and the effect of maintaining the original nerve structure of the natural teeth can be maintained .

It provides the same effect as a natural tooth, so that it can transfer and reproduce the masticatory force of the natural tooth, the texture, and the feeling of touch during food digestion from the tooth to the brain.

Furthermore, the nerve guide hole 141 formed in the lower fixation block 140 also serves to facilitate the fixture 100 to pierce the alveolar bone more easily.

In addition, as shown in FIG. 8, the fixture 100 'may be formed in a conical structure as another embodiment of the present invention.

As shown in the figure, the fixture 100 'has an empty hollow structure and has a plurality of side flow channels 110' between two adjacent threaded portions 120 'along the longitudinal direction of the fixture 100'. Are formed at regular intervals along the circumferential direction of the fixture 100 'and are connected to the hollow, and a plurality of screw part flow passages 121' are vertically formed in the screw part 120 ' consist of.

In this case, the plurality of side flow channels 110 'preferably have the same area.

In addition, a nerve guide hole may be formed at the lower end of the fixture 100 'so as to be connected to the hollow.

Meanwhile, the abutment 200 is coupled to the upper end of the fixture 100, and is a component for engaging a crown of teeth.

A fastening part 210 is formed in the lower part of the abutment 200 so as to be complementarily fastened to the fastening groove 131 of the fixture 100.

Since the abutment 200 is the same as or similar to a technique known in the art, its detailed configuration and operation will not be described.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Will be apparent to those of ordinary skill in the art.

100, 100 ': Fixture 110: Side distribution part
120: thread portion 121: thread portion flow hole
130: upper fixing block 132:
140: lower fixing block 141: nerve guide ball
150: straight connecting member 151: blade face
200: abutment

Claims (9)

A fixture having a body formed with a hollow inside and a peripheral flow portion connected to the hollow on a circumferential surface thereof, and a screw formed around the body; And
And an abutment coupled to an upper end of the fixture,
Wherein a plurality of screw thread flow holes arranged on the surface of the threaded portion are arranged to be spaced apart from each other in a vertical direction.
The method according to claim 1,
The fixture includes an upper fixed block to which the abutment is fastened, a lower fixed block located at a lower portion spaced apart from the upper fixed block and formed to be convex downward, and a lower fixed block connected between the upper fixed block and the lower fixed block A straight connecting member, and the threaded portion which surrounds the straight connecting member from the outside.
3. The method of claim 2,
The linear connecting member is a member having a four-sided cross-sectional structure in which one end is connected to the upper fixing block and the other end is connected to the lower fixing block. The plurality of linear connecting members are arranged along the circumferential direction of the upper fixing block and the lower fixing block The implant assembly comprising:
The method of claim 3,
Wherein the cross-sectional structure of the straight connecting member is formed to have a larger outer surface width than the inner surface width, and both side surfaces of the cross-section have a blade surface for cutting the alveolar bone.
5. The method of claim 4,
Wherein the space is defined by the spacing distance between the straight connecting members and the pitch distance of the threaded portion.
6. The method of claim 5,
Wherein the side flow portion gradually decreases in size from the upper portion to the lower portion.
The method according to claim 1,
The fixture has a plurality of side flow channels spaced apart from each other along the circumferential direction of the fixture between two adjacent screw threads along the longitudinal direction and connected to the hollow, and the plurality of side flow channels have the same area, Wherein the implant assembly is configured to form an implant.
8. The method according to any one of claims 1 to 7,
And a nerve guide hole connected to the hollow is formed at the lower end of the fixture.
8. The method according to any one of claims 1 to 7,
Wherein a plurality of protruding rings are formed on an upper portion of the fixture along a longitudinal direction thereof.

Images