KR200490420Y1 - Tightening apparatus with structure for anti-loosing and dental implant including the same - Google Patents

Abstract

According to an embodiment of the present invention, in the fastening device inserted into the interior of the first fastening member and the second fastening member, the first fastening member and the second fastening member in the combined state coupled to the inside of the first fastening member; An area to be positioned, the fixing part being in contact with an inner surface of the first fastening member and generating a frictional force when positioned inside the first fastening member; And a coupling part disposed below the fixing part and coupled to the second fastening member. It includes, the fixing portion is provided with a fastening device having an anti-loosening structure is formed of at least one protrusion having an elastic force to prevent the fastening device is released.

Description

Tightening apparatus with structure for anti-loosing and dental implant including the same}

The present invention relates to a fastening device used when fastening the first fastening member and the second fastening member, and more particularly, can be fastened so as not to loosen the coupling of the first member and the second member, easy to remove after fastening A fastening device having an anti-loosening structure.

Conventionally, when the first fastening member and the second fastening member require a strong coupling force when fastening the bolts and nuts are coupled to it, and when simply connecting the first fastening member and the second fastening member, such as screws It has been assembled using. In the case of using such a bolt or screw, it is widely known that the first fastening member or the second fastening member is provided with a screw thread and thus the bolt or screw is coupled thereto.

For example, even in the case of dental implants, a strong coupling force is required when coupling the fixture and abutment, and thus screw members such as bolts and screws are used.

Hereinafter, a conventional dental implant will be described in detail with reference to the accompanying drawings.

1 is a view for explaining a conventional dental implant, as shown in Figure 1, a conventional dental implant, is coupled to the fixture (F), fixture (F) that is embedded in the alveolar bone fixed connection It is composed of the abutment (A) and the crown (T) that is fixed to the abutment (A) to form the head of the artificial tooth.

Fixture (F) is implanted in the alveolar bone through the thread formed on the outer surface after the healing period, the abutment (A) and the crown (T) is combined to complete the procedure.

Meanwhile, the abutment A may be coupled to the fixture F by itself, but may be coupled using a separate coupling bolt B as shown in FIG. 1.

By the way, the conventional implant coupling structure is a structure in which the fixture (F) and the abutment (A) is simply fastened by the bolt (B), so that the abutment (A) is finely flowed by continuous food chewing. There is a problem of rotation and loosening in the fixture (F).

If the food is still chewed while the abutment (A) is loosened, the abutment (A) may be damaged, or in severe cases, the fixture (F) may be damaged, and if such damage occurs, the crown (T) may be detached or As well as the hassle of having to separate the entire structure and repeat the procedure, a space is generated between the abutment (A) and the fixture (F), there is a problem such as bacteria, bacterial infection.

In addition, when the abutment (A) coupled to the fixture (F) receives excessive chewing pressure, there is also a problem that removal is not easy when the coupling bolt (B) is broken.

(Utility Model Document 001) Utility Model Registration Publication No. 0269113

According to an embodiment of the present invention, an object of the present invention is to provide a fastening device having a structure capable of preventing the fastening of the fastening device for coupling the first fastening member and the second fastening member.

According to an embodiment of the present invention, an object of the present invention is to provide a dental implant comprising a fastening device having a structure capable of preventing the fastening of the fastening device for coupling the fixture and abutment.

According to an embodiment of the present invention, an object of the present invention is to provide a dental implant comprising a fastening device that can be easily detached from the fixture from the fastening device coupled to the fixture.

According to an embodiment of the present invention, in the fastening device inserted into the first fastening member and the second fastening member,

A region located inside the first fastening member in a coupled state where the first fastening member and the second fastening member are coupled to each other. The friction force is brought into contact with the inner surface of the first fastening member when the first fastening member is positioned inside the first fastening member. Fixed portion for generating a; And a coupling part disposed below the fixing part and coupled to a second fastening member. Including;

The fixing portion is formed of at least one protrusion having an elastic force to prevent the fastening device is released, the protrusion is a fixed end connected to the coupling portion, a free end not connected to the coupling portion, the coupling state A first surface in contact with the inner surface of the first fastening member, a second surface not in contact with the inner surface of the first fastening member in the engaged state,

The first surface and the second surface is provided with a fastening device having an anti-loosening structure, characterized in that each having a curved shape and disposed facing each other spaced apart from each other.

According to an embodiment of the present invention, in the dental implant,

The implant includes a fixture secured to the alveolar bone, an abutment coupled to the fixture, and a fastening device for coupling the fixture and the abutment, wherein the fastening device has a loosening prevention structure. Characterized in that the dental implant comprising a fastening device is provided.

According to an embodiment of the present invention, the protrusion structure constituting the fastening device can be opened and closed by elastic force, and is generated when pressure is applied to the inner side of the first fastening member when the protrusion structure is in the closed state. Since a strong fixing force is generated by the frictional force, there is an effect of preventing the loosening of the fastening device combining the first fastening part and the second fastening member.

According to an embodiment of the present invention, the protrusion structure constituting the fastening device can be opened and closed by elastic force, and when the protrusion structure is in the closed state, it is generated when pressure is applied to the inner side of the abutment. Since a strong fixation force is generated by the friction force, there is an effect that can prevent the loosening of the fastening device combined with the fixture and abutment even in the continuous food chewing after the implant procedure.

According to one embodiment of the present invention, since the protrusion structure constituting the fastening device includes a curved shape, it is possible to easily separate the fastening device coupled to the fixture from the fixture.

1 is a view for explaining the combination of the abutment and fixture of a conventional dental implant,
2 to 5 are views for explaining a fastening device having a loosening prevention structure according to a first embodiment of the present invention,
6 to 10 are views for explaining a fastening device having a loosening prevention structure according to a second embodiment of the present invention.

The above objects, other objects, features and advantages of the present invention will be readily understood through the following preferred embodiments associated with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed contents may be thorough and complete, and to fully convey the spirit of the present invention to those skilled in the art. In this specification, where a component is mentioned as being on another component, it means that it may be formed directly on the other component or a third component may be placed therebetween.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, the words 'comprises' and / or 'comprising' do not exclude the presence or addition of one or more other components.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In describing the following specific embodiments, various specific details are set forth in order to more specifically explain and to help understand the invention. However, readers with knowledge in this field to the extent that they can understand the present invention can recognize that they can be used without these specific details. In some cases, it is noted that parts of the description that are not commonly known in the description of the invention are not described to prevent confusion in describing the invention.

First embodiment

2 to 5 are views for explaining a fastening device having a loosening prevention structure according to the first embodiment of the present invention, Figure 2 is a fastening device 1 having a loosening prevention structure (hereinafter, 'fastening device (1) FIG. 3 is a view illustrating an example in which a fastening device 1 is inserted into a fastening member, and FIGS. 4 and 5 are views for explaining a supporting member.

2 to 5, the fastening device 1 (hereinafter, referred to as a “fastening device”) having an anti-loosening structure according to an embodiment of the present invention has a substantially cylindrical shape, and a fixing part 110 and It includes a coupling portion 130.

Fastening device according to the first embodiment of the present invention (1), after passing through the first fastening member (C1) through the insertion hole of the first fastening member (C1), the insertion hole of the second fastening member (C2) The second fastening member C2 is inserted into the second fastening member C2 to couple the first fastening member C1 to the second fastening member C2. Here, the fastening device 1 is composed of a material that does not corrode or rust in the interior of the first fastening member (C1) and the second fastening member (C2), for example, stainless steel (stainless steel) or It may be made of a material such as titanium. However, this is only an example, and thus, any material may be used as long as it is not rusted.

The fixing unit 110 includes a first fastening member C1 in a fastening device 1 in a coupled state (hereinafter, referred to as a “coupled state”) in which the first fastening member C1 and the second fastening member C2 are coupled. It is an area located inside of. The fixing unit 110 has an inner surface of the first fastening member C1 when the fastening device 1 is positioned inside the first fastening member C1 while passing through the insertion hole of the first fastening member C1. Contact and generate frictional force.

The coupling part 130 is an area that is positioned below the fixing part 110 and engages with the second fastening member C2 and may include an upper area 130a and a lower area 130b.

According to one embodiment, the fastening device 1 is connected to the upper end of the upper region 130a by using an insertion tool (for example, a hexagonal wrench) inside the first fastening member C1 and the second fastening member C2. An insertion groove S1 is formed to facilitate insertion into the groove. 2 and 3, but the insertion groove (S1) is shown as part of the hexagon, it is not limited to the hexagon may be implemented including both polygons such as triangles, squares.

According to one embodiment, at least a portion of the lower region 130b is formed with a thread 131 for engaging with the inner surface of the second fastening device (C2).

For example, in the coupled state of the first fastening member C1 and the second fastening member C2, the upper region 130a is located inside the first fastening member C1, and at least part of the lower region 130b. Is coupled to the inner surface of the second fastening member (C2) using a screw thread 131 in the second fastening member (C2).

According to an embodiment, the fixing part 110 may include at least one protrusion 111 having an elastic force to prevent the fastening device 1 from being released from the first fastening member C1 and the second fastening member C2. It is composed. The elastic force of the protrusion 111 will be described later.

According to one embodiment, at least one protrusion 111 may be formed periodically at regular intervals. For example, the protrusions 111 may be periodically spaced at predetermined intervals along the outer circumferential surface of the upper region 130a of the coupling portion 130.

According to another example, the at least one protrusion 111 may be symmetrically formed with respect to the center of the fixing part 110.

The protruding portion 111 is connected to the coupling portion 130, the fixed end (111b) does not move, the free end (111a) is not connected to the coupling portion 130, the first fastening member (C1) in the engaged state The first surface 111c in contact with the inner surface of the c) and the second surface 111d not in contact with the inner surface of the first fastening member C1 in the engaged state.

The first surface 111c and the second surface 111d each have a curved shape and are spaced apart from each other and face each other. The length of the first surface 111c and the length of the second surface 111d may be different from each other. For example, the first surface 111c and the second surface 111d may be roughly arc-shaped curved surfaces, and an area in which friction occurs with the inner surface of the first fastening member C1 in a coupled state may be formed wide. The length of the first surface 111c may be longer than the length of the second surface 111d. When the fastening device 1 needs to be separated from the first fastening member C1 and the second fastening member C2, it is easily separated by the curved shape included in the first surface 111c and the second surface 111d. Becomes possible.

According to an embodiment, the fixing part 110 may be in an open state and a closed state by the elastic force of the protrusion 111.

Here, the elastic force of the protruding portion 111 means that the free end 111a extends outward so that the diameter formed by the protruding portion 111 of the open state-fixed end 110 becomes larger than the diameter of the first fastening member C1 insertion hole. It is a property to maintain the moved state.

For example, in the open state, the coupling part 130 is inserted into the second fastening member C2 via the first fastening member C1, but the fixing part 110 is completely inserted into the first fastening member C1. Therefore, at least a part of the protrusion 111 is exposed to the outside by the elastic force of the protrusion 111.

For example, in the closed state, the free end 111a is connected to the first fastening member C1 so that the fixing part 110 is fully inserted into the first fastening member C1 to correspond to the inner diameter of the first fastening member C1. At the same time as moving toward the inside of the frictional force is generated by the pressure on the inner surface of the first fastening member (C1) the outer surface of the protrusion 111 by the elastic force of the protrusion 111.

By the elastic force of the protrusion 111, the fastening device 1 is formed to be firmly fixed to the first fastening member C1, that is, the anti-loosening structure is formed, so that the fastening device 1 is the first fastening member C1. And it can be prevented from loosening in the second fastening member (C2).

According to an embodiment, the fixing part 110 and the coupling part 130 may be integrally formed. That is, according to the present embodiment, in order to prevent the fastening of the fastening device 1, the fastening device 1 is loosened by an anti-loosening structure formed in the fixing part 110 without coupling a separate part to the fastening device 1. Can be prevented.

Referring to FIG. 4, the fastening device 1 according to an embodiment may further include a cylindrical support member 150.

The support member 150 is formed to have a size corresponding to the inner diameter of the first fastening member C1 and is inserted into the inside S2 of the first fastening member C1, and applies pressure to the fastening device 1 in the closed state. The first support part 151 coupled to the inner side of the first fastening member C1 while applying pressure to the free end 111a above the fixing part 110 and more specifically above the free end 111a so as to be applied. ) May be included.

According to one embodiment, a screw thread for coupling to the first fastening member C1 may be formed on the outer surface of the first support part 151. For example, the direction of the screw thread formed on the first support part 151 may be formed in a direction opposite to the direction of the screw thread 131 formed on at least a portion of the lower region 130b of the fastening device 1. That is, the fastening device 1 is inserted into the second fastening member C2 in a direction opposite to the insertion direction of the support member 150, so that the fastening device 1 is the first fastening member C1 and the second fastening member. Release at (C2) can be effectively prevented.

Referring to FIG. 5, the support member 250 according to another embodiment may further include a cylindrical second support 255 connected to the lower side of the first support 251. The second support part 255 has a diameter corresponding to the diameter of the inner space formed inside the fixing part 110 by at least one protrusion 111, and the free end 111a is fixed to the fixing part 110 in a closed state. It can fit into this inner space so that it does not move toward the inner space of When the second support part 255 is fitted, the first surface 111c of the protrusion 111 presses the inner surface of the first fastening member C1 to be in close contact with the first fastening device 1. It can be fixed inside the C1). Although not shown, a thread for coupling to the second surface 111d of the protrusion 111 may be formed on the outer surface of the second support 255, and the direction of the thread may be in the lower region 130b of the fastening device 1. It may be formed in a direction opposite to the direction of the thread 131 formed on at least a portion of the. That is, the fastening device 1 is formed in the direction in which the fastening device 1 is inserted into the second fastening member C2 and the insertion direction of the support member 250 so that the fastening device 1 is the first fastening member C1 and the second fastening member. Release at (C2) can be effectively prevented.

Second embodiment

6 to 10 are views for explaining a fastening device having a loosening prevention structure according to a second embodiment of the present invention, Figure 6 is a fastening device 2 having a loosening prevention structure (hereinafter, 'fastening device (2) 7), in which the fastening device 2 couples the fixture F1 to which the implant is buried in the alveolar bone and the abutment A1 coupled to the fixture F1. 8 and 9 are views for explaining the supporting member, and FIG. 10 is a view for explaining the function of the fixing part.

That is, as in the second embodiment, the fastening device 2 may also be applied when fastening the fixture F1 and the abutment A1 used in the implant procedure. Therefore, in the present embodiment, the first fastening member is described as an abutment A1, and the second fastening member is described as a fixture F1.

6 and 7, the fastening device 2 according to the present exemplary embodiment has a substantially cylindrical shape, and includes a fixing part 210, a coupling part 230, and a connecting part 220.

That is, unlike the embodiment described with reference to FIGS. 2 and 3, there is a difference in that the connection part 220 is further included. Hereinafter, the difference will be described.

The fastening device 2 according to the present embodiment passes through the abutment A1 through the insertion hole of the abutment A1 and then, through the insertion hole of the fixture F1, of the fixture F2. It is inserted inside to combine the abutment A1 and the fixture F1. Here, the fastening device 2 is composed of a material that does not corrode or rust in the interior of the abutment (A1) and the fixture (F1), for example, stainless steel (stainless steel) or titanium (Titanium) of a non-rust metal material It may be made of the same material). However, this is only an example, and thus, any material may be used as long as it is not rusted.

The fixing part 210 according to the present embodiment is the abutment (A1) in a coupling state (hereinafter referred to as a 'coupled state') coupled to the fastening device 2 and the abutment (A1) and fixture (F1) It is an area located inside of. The fixing part 210 is in contact with the inner surface of the abutment A1 when the fastening device 2 is positioned inside the abutment A1 while passing through the insertion hole of the abutment A1. Generates.

The coupling part 230 is an area that is positioned below the fixing part 210 and engages with the fixture F1, and may be composed of an upper area 230a and a lower area 230b.

According to one embodiment, at least a portion of the lower region 230b is formed with a thread 231 for engaging with the inner surface of the fixture F1.

For example, in the engagement state of the abutment A1 and the fixture F1, the upper region 230a is located inside the abutment A1, and at least a portion of the lower region 230b is a fixture ( The inside of F1) is coupled to the inner surface of the second fastening member C2 using the thread 131.

The connection part 220 according to the present exemplary embodiment may include an upper surface, a lower surface, and a side surface 221. The upper surface is a surface connected to the fixing portion 210, the lower surface is a surface connected to the coupling portion 230, the upper surface and the lower surface is connected by the side surface (221). More specifically, the upper surface is connected to the fixed end 211b, which will be described later, and the lower surface is connected to the upper region 230a of the coupling portion 230.

According to an embodiment, the fastening device 2 is inserted into the abutment A1 and the fixture F1 by using an insertion tool (for example, a hexagonal wrench) on the upper surface of the connection part 220. Insertion groove (S11) is formed to facilitate. 6 and 7, although the insertion groove S11 is shown as part of the hexagon, it is not limited to the hexagon and may be implemented including all polygons such as triangles and squares.

According to one embodiment, the abutment (A1) may be formed with an inclined surface (A11) for guiding the position where the fastening device 2 is coupled in the abutment (A1). In the present exemplary embodiment, the side surface 221 of the connecting portion 220 is formed with a guide portion corresponding to the inclined surface A11 so as to span the inclined surface A11 and engage with the abutment A1 at the correct position.

The guide part may include a first extension part 221a extending in a first direction closer to the lower surface from an outer peripheral part of the upper surface of the connection part 220, and a second direction different from the first direction from the first extension part 221a. And a third extension part 221c extending from the second extension part 221b and a second extension part 221b extending in a third direction different from the second direction.

For example, the third extension portion 221c spans the inclined surface A11 inside the abutment A1 to accurately guide the position at which the fastening device 2 engages in the abutment A1. have.

According to one embodiment, the fixing part 210 is composed of at least one protrusion 211 having an elastic force to prevent the fastening device 2 from being released from the abutment A1 and the fixture F1.

According to one embodiment, at least one protrusion 211 may be formed periodically at regular intervals. For example, as illustrated in FIGS. 6 and 7, the protrusions 211 may be periodically spaced at predetermined intervals along the outer diameter of the upper surface of the connection part 220.

According to another example, the at least one protrusion 211 may be symmetrically formed with respect to the center of the fixing unit 210 or the connecting unit 220.

Protruding portion 211 according to the present embodiment, the fixed end 211b is connected to the connection portion 220 does not move, the free end 211a that is not connected to the connection portion 220, the avert in a coupled state A first surface 211C in contact with the inner surface of the garment A1 and a second surface 211d not in contact with the inner surface of the abutment A1 in the engaged state.

The first surface 211c and the second surface 211d each include a curved shape and are spaced apart from each other and face each other. The length of the first surface 211c and the length of the second surface 211d may be different from each other. For example, the first surface 211c and the second surface 211d may be roughly arc-shaped curved surfaces, and an area in which friction occurs with the inner surface of the abutment A1 in a coupled state may be formed wide. The length of the first surface 211c may be longer than the length of the second surface 211d. For example, when the abutment A1 coupled to the fixture F1 receives excessive chewing pressure and the fastening device 2 fractures, it is necessary to replace the fastening device 2 and the like. The curved shape included in the first surface 111c and the second surface 111d allows the fastening device 2 to be detached with little damage to the fixture F1 or the abutment A1.

Referring first to FIG. 10 to describe the function of the first surface 211c, a convex portion A11 is formed on at least a portion of the inner surface of the abutment A10 according to an embodiment. For example, the convex portion A11 may be formed in the middle of the abutment A10.

When the fastening device 2 is inserted and fastened to the abutment A10, the convex part A11 is in the process of passing the inner surface of the abutment A10 by the first surface 211c of the fixing part 210. When positioned at, the frictional force generated by the convex portion A11 between the first surface 211c and the inner surface of the abutment A10 is further increased. Accordingly, since the first surface 211c presses and closes the inner surface of the abutment A1, the fastening device 2 may be more firmly fixed to the inside of the abutment A1.

Referring to FIG. 7 again, the fixing part 210 may be in an open state and a closed state by the elastic force of the protrusion 211. 7 (a) is an open state, and FIG. 7 (b) is a view showing a closed state. Hereinafter, an open state and a closed state will be described with reference to FIG. 7.

Here, the elastic force of the protruding portion 211 means that the free end 211a moves outward so that the diameter formed by the protruding portion 211 of the open state-fixed end 210 becomes larger than the diameter of the abutment A1 insertion hole. It is a property to maintain the state.

For example, in the open state, as shown in FIG. 7A, the coupling part 230 is inserted into the fixture F1 via the abutment A1, and the connection part 220 is also abutment. Although inserted into (A1), the fixing part 210 is not completely inserted into the abutment (A1), so that at least a part of the protrusion 211 is exposed to the outside by the elastic force of the protrusion 211.

For example, in the closed state, as shown in FIG. 7B, the free end 211a is fully inserted into the abutment A1 to correspond to the inner diameter of the abutment A1. ) Is moved toward the inside of the abutment A1 and the frictional force is generated when the outer surface of the protrusion 2111 pressurizes the inner surface of the abutment A1 by the elastic force of the protrusion 211. .

By the elastic force of the protrusion 211, a structure in which the fastening device 2 can be strongly fixed to the abutment A1, that is, an anti-loosening structure is formed, thereby fastening the device 2 to the abutment A1 and the fix. It is possible to prevent the loosening in the chur F1.

According to an embodiment, the fixing part 210, the coupling part 230, and the connecting part 220 may be integrally formed. That is, according to the present embodiment, in order to prevent the fastening of the fastening device 2, the fastening device 2 is loosened by an anti-loosening structure formed in the fixing part 210 without coupling a separate part to the fastening device 2. Can be prevented.

Referring to FIG. 8, the fastening device 2 according to an embodiment may further include a cylindrical support member 350.

The support member 350 is formed to have a size corresponding to the inner diameter of the abutment A1 and is inserted into the inside S22 of the abutment A1, and may apply pressure to the fastening device 2 in the closed state. And a first support part 351 coupled to the inner side of the abutment A1 while applying pressure to the free end 211a above the fixing part 210 and more specifically above the free end 211a. can do.

According to one embodiment, a thread for coupling to the abutment A1 may be formed on an outer surface of the first support part 351. For example, the direction of the thread formed on the first support part 351 may be formed in a direction opposite to the direction of the thread 231 formed on at least part of the lower region 230b of the fastening device 2. That is, the fastening device 2 is formed to be reversed in the direction in which the fastening device 2 is inserted into the fixture F1 and the insertion direction of the support member 350 so that the fastening device 2 is released from the abutment A1 and the fixture F1. Can be effectively prevented.

Referring to FIG. 9, the support member 450 according to another embodiment may further include a cylindrical second support part 455 connected to the lower side of the first support part 451. The second support part 455 has a diameter corresponding to the diameter of the inner space S33 formed inside the fixing part 210 by at least one protrusion 211, and the free end 211a is closed in the closed state. It may be fitted into this internal space (S33) so as not to move toward the internal space of the government (210). When the second support part 455 is fitted, the first surface 211c of the protrusion 211 press-contacts the inner surface of the abutment A1 so that the fastening device 2 is more firmly connected to the abutment A1. It can be fixed inside. Although not shown, a thread for coupling to the second surface 211d of the protrusion 211 may be formed on the outer surface of the second support 455, and the direction of the thread may be in the lower region 230b of the fastening device 2. It may be formed in a direction opposite to the direction of the thread 231 formed on at least a portion of the. That is, the fastening device 2 is formed to be reversed in the direction in which the fastening device 2 is inserted into the fixture F1 and the insertion direction of the support member 450 so that the fastening device 2 is released from the abutment A1 and the fixture F1. Can be effectively prevented.

As such, those skilled in the art to which the present invention pertains can make various modifications and variations from the description of the above specification. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the claims below and equivalents thereof.

1, 2: fastener
110, 210: fixed part
220: connection
130, 230: coupling
150, 250, 350, 450: support member
111, 211: protrusions
221: guide part
C1: first fastening member
C2: second fastening member
A1, A10: abutment
F1, F10: fixture

Claims (14)

In the fastening device inserted into the first fastening member and the second fastening member,
A region located inside the first fastening member in a coupled state where the first fastening member and the second fastening member are coupled to each other, the frictional force being in contact with the inner surface of the first fastening member when positioned inside the first fastening member. Fixed portion for generating a; And
A coupling part positioned below the fixing part and coupled to a second fastening member; Including;
The fixing part is formed of at least one protrusion having an elastic force to prevent the fastening device from loosening,
The protruding portion is a fixed end connected to the engaging portion, a free end not connected to the engaging portion, a first surface in contact with the inner surface of the first fastening member in the engaging state, the first fastening in the engaging state A second surface not in contact with the inner surface of the member,
The first surface and the second surface is a fastening device having an anti-loosening structure, characterized in that each having a curved shape and disposed facing each other spaced apart from each other. The method of claim 1,
A connecting portion consisting of an upper surface, a lower surface and a side surface; More,
The upper surface is connected to the fixed end, the lower surface is connected to the coupling portion,
The protrusion is fastening device having an anti-loosening structure, characterized in that formed at a predetermined interval spaced along the outer edge of the upper surface. The method of claim 2,
The side of the connecting portion is formed with a guide for guiding the position where the fastening device is coupled to the first fastening member,
The guide part may include a first extension part extending in a first direction closer to the lower surface from an outer circumference of the upper surface, and a second extension extending from the first extension part in a second direction different from the first direction. And a third extension part which is switched from the second extension part to a third direction which is different from the second direction and extends from the second extension part. The method of claim 1,
The fixing portion is open and closed by the elastic force of the protrusion,
The open state is,
Since the fixing part is not completely inserted into the first fastening member, at least a part of the protrusion is exposed to the outside,
The free end is moved to the outside so that the diameter formed by the first surface in the open state is larger than the diameter of the first fastening member insertion hole,
The closed state is,
The fixing part is completely inserted into the first fastening member so that the free end is moved toward the inside of the first fastening member so as to correspond to the inner diameter of the first fastening member, and at the same time, the first surface is moved by the elastic force of the protrusion. The fastening device having a loosening prevention structure, characterized in that the friction force is generated by applying pressure to the inner surface of the first fastening member. The method of claim 4, wherein
Convex portions are formed on at least a portion of the inner side surface of the first fastening member,
And the frictional force is increased when the first surface is positioned on the convex portion. The method of claim 5,
The convex portion is fastening device having an anti-loosening structure, characterized in that located in the middle of the first fastening member. The method of claim 4, wherein
A cylindrical support member; More,
The support member,
And a first support part inserted into the first fastening member and coupled to the inner surface of the first fastening member from above the fixing part to apply pressure to the fastening device in the closed state. , Fastening device having a loosening structure. The method of claim 7, wherein
The support member includes a second cylindrical support portion connected to the lower side of the first support portion; More,
The second support portion,
It characterized in that it has a diameter corresponding to the diameter of the inner space formed in the fixing portion by the at least one protrusion, and fitted in the inner space so that the free end does not move toward the inner space in the closed state, Fastening device having a loosening structure. The method of claim 4, wherein
The coupling part is composed of an upper region and a lower region, characterized in that at least a portion of the lower region in the coupling state is coupled to the inner surface of the second fastening member, fastening device having an anti-loosening structure. The method of claim 4, wherein
Fastening device having an anti-loosening structure, characterized in that the fixing portion and the coupling portion formed integrally. The method of claim 4, wherein
Fastening device having an anti-loosening structure, characterized in that the protrusion is formed periodically. The method of claim 9,
An upper end of the upper region is formed with an insertion groove for easy insertion of the fastening device into the interior of the first fastening member and the second fastening member by using an insertion tool, anti-loosening structure Branch fastening device. The method of claim 12,
The insertion groove is a fastening device having a loosening structure, characterized in that the hexagonal shape. In dental implants,
The implant,
A fixture fixed to the alveolar bone, an abutment coupled to the fixture, and a fastening device for coupling the fixture and the abutment,
The fastening device is a dental implant comprising a fastening device having an anti-loosening structure, characterized in that the fastening device according to any one of claims 1 to 13.

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