KR20210020494A - Implant - Google Patents

Abstract

The present invention relates to an implant including a structure with increased bonding force. According to one embodiment of the present invention, the implant comprises: an implant part which is implanted in an oral cavity; a pressing part including a contact surface which is in contact with the implant part at an angle that is different from an implant direction in which the implant part is implanted, and a first assembly hole penetrating in the implant direction; a support assembled with the first assembly hole of the pressing part, provided with an artificial tooth formed on one surface, and including a perforated second assembly hole; and a fixing part screw-coupled with the implant part through the second assembly hole of the support and configured to fix the pressing part and the support to the implant part. An assembly state between the implant part, pressing part, support and fixing part is maintained by first fixing force generated by the coupling between the fixing part and the implant part and second fixing force generated as the pressing part presses the implant part, and the first fixing force and second fixing force are operated in different directions.

Description

Implant{IMPLANT}

The present invention relates to an implant assembly comprising a structure with increased bonding force.

In general, a dental implant means a replacement for a lost natural tooth, or a screw-shaped fixture is fastened to the alveolar bone so that it is fused with the bone for a certain period of time, and then beams such as an abutment and an artificial tooth crown. It refers to a dental procedure that restores the original function of the tooth by fixing the hardware. Most conventional dental implants have a structure in which the fixture and the abutment are fixed using screw bolts in a state in which the abutment is integrally coupled to the upper end of the fixture having a screw portion. That is, the fixture is inserted into the alveolar bone, and is coupled to the upper portion of the fixture via screw bolts, so that the prosthesis is finally coupled to the abutment. However, by combining the fixture and the abutment using the screw bolt as described above, not only may the tightening state of the screw bolt become loose when an external impact occurs, and in severe cases, the screw bolt itself may be damaged. happened. Therefore, since the screw bolts had to be checked periodically, it was very inconvenient and cumbersome not only for doctors but also for patients, and the resulting economic cost could not be ignored.

Republic of Korea Public Utility Model No. 20-2018-0002942 (2018. 10. 15)

An embodiment of the present invention is to solve the problems of the conventional implant described above, and an object of the present invention is to prevent the implant from loosening or delay the time of loosening as much as possible by strengthening the fixing force of the implant. Let's do it.

Another object to be achieved by an embodiment of the present invention is to reduce the cost of replacement parts when the abutment portion of the implant is damaged.

The present invention relates to an implant including a structure having increased bonding force, and according to an embodiment of the present invention, an implantable portion to be implanted in the oral cavity; A pressing portion including a contact surface in contact with the placement portion at an angle different from the placement direction in which the placement portion is placed and a first assembly hole penetrating in the placement direction; An abutment that is assembled with the first assembly hole of the pressing unit, the artificial tooth may be formed on one surface, and includes a second assembly hole through which it is penetrated; And a fixing part that is screwed with the insertion part through the second assembly hole of the abutment to fix the pressing part and the abutment to the insertion part, and the assembly state between the placement part, the pressing part, the abutment and the fixing part includes An implant is provided, wherein the first fixing force generated by the combination of and the pressing portion is maintained by the second fixing force generated by pressing the implantation portion, and the directions of the first fixing force and the second fixing force act in different directions.

In addition, the first fixing force may be generated in the axial direction of the insertion portion due to the loose coupling between the fixing portion and the insertion portion.

In addition, the pressing portion may be disposed to generate a second fixing force from the contact surface to the outside of the implantation portion.

In addition, the pressing portion may be disposed to generate a second fixing force from the contact surface to the inside of the implantation portion.

In addition, the first assembly hole, the second assembly hole, and the middle axis of the insertion portion may be located on the coaxial.

In addition, by the coupling between the fixing part and the implantation part, the distance between the holding stand and the implantation part may be narrowed and combined.

In addition, the action direction of the pressing force is different from the action direction of the fixing force, but may be formed within a range of less than 90 degrees in the clockwise direction to less than 90 degrees in the counterclockwise direction based on the action direction of the fixing force.

According to an embodiment of the present invention, in order to prevent the implant from loosening or delay the time of loosening as much as possible by strengthening the fixing force of the implant, a plurality of contact surfaces having different pressing directions in the assembly process are formed. Implants can be provided.

Another object to be achieved by an embodiment of the present invention is to reduce the cost of replacement parts when the abutment part of the implant is damaged, and to provide an implant composed of a separate member based on a function of coupling and pressing.

1 (a) is a view showing an implant according to an embodiment of the present invention, Figure 1 (b) is a view showing an implant according to another embodiment of the present invention,
Figure 2 (a) is a view showing the first pressing force direction of the implant according to an embodiment of the present invention, Figure 2 (b) is a view showing the second pressing force direction of the implant according to another embodiment of the present invention.

Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. However, this is only an example and the present invention is not limited thereto.

In describing the present invention, when it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following embodiments are only one means for efficiently describing the technical idea of the present invention to those of ordinary skill in the art.

1(a) is a view showing an implant according to an embodiment of the present invention, and FIG. 1(a) is a view showing an implant according to an embodiment of the present invention.

Referring to Figures 1 (a) and 1 (b), the implant includes an insertion portion (100, 100a), a pressing portion (200, 200a), abutment (300, 300a) and the fixing portion (400, 400a). . Here, the implantation parts 100 and 100a are configured to be implanted in the oral cavity, and the pressing parts 200 and 200a and the abutment 300 and 300a may be fixed to the implantation parts 100 and 100a through the fixing parts 400 and 400a. have. When the insertion portions 100 and 100a are placed in the insertion direction (A) (for example, the lower side), the pressurization portions 200 and 200a and the abutments 300 and 300a are sequentially formed from the upper side of the insertion portions 100 and 100a. Can be settled. The seating is not fixed by a separate fixing means, but may be placed on the insertion portions 100 and 100a. When the pressing portions 200 and 200a and the abutments 300 and 300a are seated, the first assembly holes 210 and 210a formed in the pressing portions 200 and 200a and the second assembly holes 310 and 310a formed in the abutments 300 and 300a ), the fixing portions 400 and 400a may be screw-assembled with the insertion portions 100 and 100a along the axial direction of the insertion portions 100 and 100a in the insertion direction A. Through this, a fixing force of the implant assembly may be generated.

On the other hand, the pressing portion (200, 200a) is seated on the upper side of the insertion portion (100, 100a), through the first assembly holes (210, 210a) of the pressing portion (200, 200a), at least a part of the abutment (300, 300a) Protrudes toward the implantation portions 100 and 100a. Some of the protruding abutments 300 and 300a may be assembled between polygonal intaglios such as hexagons or octagons and embossments so that relative rotation with the insertion portions 100 and 100a does not occur. For example, a hexagonal columnar protrusion may penetrate through the pressing portions 200 and 200a and protrude toward the insertion portions 100 and 100a. The protrusion may be seated in an intaglio-shaped groove with a predetermined depth corresponding to the protrusion. Of course, the groove may be formed with the insertion portions 100 and 100a. Therefore, the rotation between the insertion portions 100 and 100a and the abutments 300 and 300a may be restricted.

In this way, it is possible to constrain in the vertical direction including the rotational direction and the insertion direction (A), but a similar cause may be caused when the connection in the insertion direction (A) is also screwed by rotation and the connection is released. For example, when food is chewed or external forces such as shock and vibration are continuously applied to the implant, screw assembly through rotation may be released. Accordingly, another type of coupling force can be added to prevent the coupling made by rotation from being released.

For example, in addition to the fixing force by the screw, a pressing force may be formed to add a bonding force for fixing the implant assembly. The pressing force may be a force acting downward in the insertion direction (A), and becomes a force excluding rotation. That is, the coupling force coupled through rotation and the pressing force acting in the linear direction can check each other to increase the fastening force of the implant assembly.

In order to form such a coupling force, the pressing portions 200 and 200a having the contact surfaces 201 and 201a facing the lower side (direction toward the horizontal or lower) are provided, and the fixing portion 400 fixed in the insertion direction A , 400a) can be combined to generate a pressing force. As an example, an implant assembly having a shape as shown in FIG. 1(b) may be provided. The fixing force is generated by the fixing part 400a, but the direction of the contact surface 201a of the pressing part 200a may be formed differently from that of FIG. 1(a). Through this structure, when the fixing force is generated downward by the fixing part 400a, the direction of the pressing force generated from the contact part may be different from each other in FIGS. 1(a) and 1(b). Hereinafter, with reference to FIG. 2, the point in which the direction in which the pressing force is generated differs according to the opposite direction of the contact surfaces 201 and 201a formed on the pressing portions 200 and 200a will be described.

2(a) is a view showing a first pressing force direction P1 of an implant according to an exemplary embodiment of the present invention, and FIG. 2(b) is a second pressing force direction P2 of an implant according to another exemplary embodiment of the present invention. It is a view showing.

2(a) and 2(b), in a state in which the implant assembly is coupled, a fixing force may be generated in the insertion direction (A) by the fixing parts 400 and 400a. That is, the fixing force direction (F) may be the same as the insertion direction (A). As described above, the fixing is performed by the fixing parts 400 and 400a, and when screwed, the fixing force direction may be a direction in which the fixing parts 400 and 400a are coupled. Since this is a combination made through rotation, another method of fixing may be additionally intervened in the fastening of the implant assembly.

Specifically, the pressing portions 200 and 200a may be seated on the implantation portions 100 and 100a, and the artificial tooth 1 may be coupled by the combination of the fixing portions 400 and 400a in the bonding process of the implant assembly. The abutment (300, 300a) can press the pressing portion (200, 200a) in the insertion direction (A). The pressing parts 200 and 200a are pressed by the abutments 300 and 300a so that the contact surfaces 201 and 201a can be in contact with the implanting parts 100 and 100a, and the stronger the fixing force of the fixing parts 400 and 400a acts The portions 200 and 200a press the implanted portions 100 and 100a more strongly through the contact surfaces 201 and 201a.

Here, the contact surfaces 201 and 201a of the pressing portions 200 and 200a may act in a non-parallel direction with respect to the insertion direction A, that is, the fixing force direction F of the fixing portions 400 and 400a. For example, the contact surfaces 201 and 201a may be formed to face the fixing force direction F and a direction spaced apart by a predetermined angle, and are provided on the implantation portions 100 and 100a directly in contact with the contact surfaces 201 and 201a. The surfaces are formed to correspond to the contact surfaces 201 and 201a, and may contact each other by surface contact.

In the case of FIG. 2 (a), it is an example in which the contact surface 201 is formed so as to face outward from the central axis of the implantation portion 100. In this case, while the contact surface 201 is in contact with the implantation part 100, the pressing part 200 presses the implantation part 100 through the contact surface 201 by the combination of the fixing part 400 and the implantation part 100 can do. At this time, since the contact surface 201 faces an outward direction from the central axis of the insertion portion 100, the pressing force through the contact surface 201 may occur in the first pressing force direction P1.

As described above, the pressing force generated in the first pressing force direction (P1) is different from the fixing force generated in the fixing force direction (F) because the force acting method and the force acting direction are different from each other. Is formed. Therefore, the bonding force of the implant assembly can be further increased.

On the other hand, when the pressing surface is pressed through the contact surface 201, the pressing unit 200 and the insertion unit 100 may have an inelastic material and an inelastic structure. That is, it is not fixed by elastic force. For example, because of the elastic force of the introduction itself, the retaining force is not maintained by the elastic restoring force or the bonding force is not supported by the structure formed to generate elasticity.

In the case of FIG. 2(b), it is an example in which the contact surface 201a is formed toward the central axis from the outside of the implantation part 100a. In this case, while the contact surface 201a is in contact with the implantation part 100a, the pressing part 200a presses the implantation part 100a through the contact surface 201a by the combination of the fixing part 400a and the implantation part 100a. can do. At this time, since the contact surface 201a faces an outward direction from the central axis of the insertion portion 100a, the pressing force through the contact surface 201a may occur in the second pressing force direction P2.

As described above, the pressing force generated in the second pressing force direction (P2) is different from the fixing force generated in the fixing force direction (F) because the way the force acts and the direction in which the force acts are different. Is formed. Therefore, the bonding force of the implant assembly can be further increased.

In the case of FIGS. 2(a) and 2(b), pressing force is generated toward the first pressing force direction (P1) and the second pressing force direction (P2), respectively, and the pressing force can act downward (less than the horizontal direction). have. That is, when the insertion direction (A) is 0 degrees, the first pressing force direction (P1) and the second pressing force direction (P2) may be formed in a range of less than 90 degrees clockwise and counterclockwise, respectively, but the fixing force direction ( The 0 degree direction, which is F), can be excluded.

Although the exemplary embodiments of the present invention have been described in detail above, those of ordinary skill in the art to which the present invention pertains will understand that various modifications can be made to the above-described embodiments within the scope of the present invention . Therefore, the scope of the present invention is limited to the described embodiments and should not be determined, and should not be determined by the claims to be described later, but also by those equivalents to the claims.

1: artificial teeth
100, 100a: implantation part
200, 200a: pressurization part
201, 201a: contact surface
210, 210a: first assembly hole
300, 300a: abutment
310, 310a: 2nd assembly hole
400, 400a: fixed part
A: Direction of placement
F: Fixing force direction
P1: First pressing force direction
P2: 2nd pressing force direction

Claims (7)

An implantable part that is placed in the oral cavity;
A pressing portion including a contact surface in contact with the placement portion at an angle different from the placement direction in which the placement portion is placed, and a first assembly hole penetrating in the placement direction;
An abutment that is assembled with the first assembly hole of the pressing unit, the artificial tooth may be formed on one surface, and includes a penetrating second assembly hole; And
Including; a fixing portion screwed with the insertion portion through the second assembly hole of the abutment to fix the pressing portion and the abutment to the insertion portion,
The assembly state between the insertion part, the pressing part, the abutment and the fixing part is maintained by a fixing force generated by the combination of the fixing part with the insertion part and a pressing force generated by the pressing part pressing the placing part,
Directions of the first fixing force and the second fixing force act in different directions, the implant.
The method according to claim 1,
The fixing force is generated in the axial direction of the insertion portion by screwing between the fixing portion and the insertion portion, the implant.
The method according to claim 1,
The pressing portion is disposed to generate the pressing force from the contact surface to the outside of the implantation portion, the implant.
The method according to claim 1,
The pressing portion is disposed to generate the second fixing force from the contact surface to the inside of the implantation portion, the implant.
The method according to claim 1,
The first assembly hole, the second assembly hole and the intermediate axis of the implantation portion is located on the coaxial, implant.
The method according to claim 1,
Implants that are coupled while narrowing the distance between the holding unit and the placement unit by the coupling between the fixing unit and the placement unit.
The method according to claim 1,
The direction of action of the pressing force is different from the direction of action of the fixing force,
The implant is formed within a range of less than 90 degrees clockwise to less than 90 degrees counterclockwise based on the action direction of the fixing force.

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