KR102351280B1 - Scanbody assembly - Google Patents

Abstract

One embodiment of the present invention is a scan body that is inserted and coupled to the insertion fixing portion of the fixture implanted in the alveolar bone; and a fixing screw coupling the fixture and the scan body, wherein the scan body includes: a polygonal support part having a shape corresponding to the rotation preventing part formed in the insertion fixing part and being inserted into the rotation preventing part; a body portion coupled to an upper portion of the polygonal support portion; and a grip part provided on one upper side of the body part and protruding outwardly from the body part.

Description

Scan body assembly {SCANBODY ASSEMBLY}

The present invention relates to a scan body assembly, and more particularly, to a scan body assembly that is coupled to a fixture implanted in the alveolar bone to accurately determine the placement position of the fixture through an intraoral scan.

In general, the prosthetic manufacturing process can be roughly divided into two methods: a method of making a crown by manually forming a mold using impression coping, and a method of making a crown by using a scan adapter to obtain a three-dimensional image with an oral scanner It is divided into a method of making a crown using this.

Recently, it can be said that there is a trend of developing a method for obtaining a three-dimensional shape using a digital oral scanner and manufacturing a prosthesis based on this. This trend can be said to be gradually expanding in response to the convenience of patients and the needs of the times. In order to obtain a three-dimensional image of the inside of the oral cavity using a digital intraoral scanner, a scan is performed after fixing the scan adapter to the fixture instead of the impression coping used in the conventional method described above.

When performing a scan to obtain a three-dimensional image of the inside of the oral cavity in this way, using a separate scan adapter is by accurately grasping the exact position and direction of the hexagonal groove formed inside the fixture as described above, This is to accurately design the abutment and crown that are fixed to the fixture. That is, a separate member called a scan adapter is used in order to recognize the thickness of the gums showing different differences depending on the patient, the implantation depth, and the correct direction.

However, the conventional scan adapter cannot be accurately combined with the fixture, so there is a problem in that information on scan data obtained through the combination of the scan adapter and the fixture is not accurate. Accordingly, there is a problem in that the restoration manufactured through the scan data cannot also be manufactured accurately.

Prior Document 1: Korean Patent Registration No. 10-1631258 (2016.06.10)

An object of the present invention for solving the above problems is to provide a scan body assembly that is coupled to a fixture implanted in the alveolar bone to accurately determine the implantation position of the fixture through an intraoral scan.

In order to achieve the above technical object, an embodiment of the present invention is a scan body that is inserted into the fixing portion of the fixture implanted in the alveolar bone; and a fixing screw coupling the fixture and the scan body, wherein the scan body includes: a polygonal support part having a shape corresponding to the rotation preventing part formed in the insertion fixing part and being inserted into the rotation preventing part; a body portion coupled to an upper portion of the polygonal support portion; and a grip part provided on one upper side of the body part and protruding outwardly from the body part.

In one embodiment of the present invention, the end side of the grip portion may be made to be parallel to any one surface of the rotation preventing portion.

In one embodiment of the present invention, the fixing screw comprises: a male threaded part screwed with a female threaded part formed in the insertion fixing part; a coupling guide part provided under the male screw part and guiding a coupling direction of the male screw part; a connection bar provided on the upper part of the male screw part; and a screw body portion provided on the upper portion of the connection bar, wherein the coupling guide portion may be configured to prevent the male screw portion and the female screw portion from being screwed together when the scan body and the fixture are erroneously coupled.

In one embodiment of the present invention, the coupling guide portion may be formed to have an outer diameter corresponding to the trough diameter of the male screw portion.

In one embodiment of the present invention, the body portion, the tapered portion coupled to the upper portion of the polygon support; and an extension portion coupled to an upper portion of the tapered portion, wherein a first position indicating portion for detecting a coupling state of the male and female portions is formed on the tapered portion, and the extension portion has a predetermined distance from the first position indicating portion A second position indicator spaced apart from each other may be formed.

In one embodiment of the present invention, the fixing screw is made to further include a screw rotating part provided on the upper part of the screw body part, and the screw rotating part includes a marking part for determining the coupling state of the male screw part and the female screw part; An anti-slip part configured to rotate while holding the fixing screw may be provided.

In one embodiment of the present invention, a screw coupling portion screwed with the male screw portion is formed on the inner surface of the tapered portion, and the outer diameter of the connecting bar may be formed smaller than the trough diameter of the male screw portion.

The effect of the scan body assembly according to the present invention described above will be described as follows.

According to the present invention, the scan body is provided with a gripping part for a user to hold the scan body. Accordingly, the user can easily move the scan body into the patient's oral cavity while holding the gripper.

In addition, since the user can screw the fixing screw and the fixture while holding the gripper, the screwing of the fixing screw and the fixture can be easily performed.

According to the present invention, a coupling guide portion is provided at the lower end of the fixing screw. The coupling guide portion is configured to prevent the male screw portion and the female screw portion from being screwed together when the scan body and the fixture are erroneously coupled. Accordingly, the scan body and the fixture can be accurately combined.

According to the present invention, as the first position display unit is formed on the body portion, the coupling state of the male screw portion and the female screw portion can be accurately identified.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is an exploded perspective view of a scan body assembly according to an embodiment of the present invention.
2 is a cutaway view of a scan body according to an embodiment of the present invention.
3 is a cross-sectional view showing a scan body assembly coupled to a fixture according to an embodiment of the present invention.
4 is a partial exemplified view showing a normal coupling state and an erroneous coupling state between the fixture and the scan body assembly according to an embodiment of the present invention.
5 is an exploded perspective view of a scan body assembly according to another embodiment of the present invention.
6 is a cross-sectional view showing a scan body assembly coupled to a fixture according to another embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is "connected" with another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member interposed therebetween. . In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

In the present invention, the upper and lower parts mean positioned above or below the target member, and do not necessarily mean positioned at the upper or lower part with respect to the direction of gravity.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a scan body assembly according to an embodiment of the present invention, FIG. 2 is a cutaway view of the scan body according to an embodiment of the present invention, and FIG. 3 is a fixture according to an embodiment of the present invention. It is a coupling cross-sectional view showing a coupled scan body assembly, and FIG. 4 is a partial exemplification view showing a normal coupling state and a erroneous coupling state between the fixture and the scan body assembly according to an embodiment of the present invention.

1 to 4 , the scan body assembly 1000 may include a scan body 100 and a fixing screw 200 .

The scan body assembly 1000 is coupled to the fixture 10 implanted in the patient's alveolar bone to determine the implantation position of the fixture 10 through intraoral scan.

Such a scan body 100 is inserted and coupled to the insertion fixing part 1 formed in the fixture 10 .

Here, the fixture 10 is a structure that is coupled to the alveolar bone to support the implant as a whole. A screw thread is formed on the outer circumferential surface of the fixture 10 so that the fixture 10 may be implanted in the alveolar bone.

An insertion fixing part 1 is formed in the interior of the fixture 10 as described above. The lower end of the scan body 100 may be inserted into the insertion fixing unit 1 .

In this way, the insertion fixing part 1 into which the scan body 100 is inserted is formed by connecting the tapered insertion part 2 , the rotation preventing part 3 and the female screw part 4 . The insertion fixing part 1 forms a groove shape having a predetermined depth in the fixture 10 .

Here, the tapered insertion part 2 is connected to the upper surface of the fixture 10 and is made to have a smaller diameter toward the lower side. The tapered insertion part 2 is configured to correspond to the tapered part 121 provided in the scan body 100 , so that when the scan body 100 and the fixture are coupled, the tapered part 121 is supported by the tapered insertion part 2 . can be

And the rotation preventing part 3 is provided at the lower part of the tapered insertion part 2 . This rotation preventing portion 3 is formed in connection with the tapered insertion portion (2).

The rotation preventing unit 3 has a polygonal shape and prevents rotation of the scan body 100 inserted into the insertion fixing unit 1 . That is, the anti-rotation unit 3 may have various polygonal shapes, such as four, five, six, seven, and eight angles, for example. In the present invention, the rotation preventing part 3 will be described as an example of a hexagonal shape.

The polygonal support part 110 provided in the scan body 100 is inserted into the rotation preventing part 3 .

And the female screw part 4 is provided in the lower part of the rotation preventing part (3). This female screw part (4) is formed in connection with the rotation preventing part (3).

The female screw part 4 couples the scan body 100 and the fixture 10 through screw coupling with the male screw part 220 provided in the fixing screw 200 .

As such, the scan body 100 coupled to the fixture 10 by the fixing screw 200 may include a polygonal support part 110 , a body part 120 , and a grip part 130 .

Here, the polygonal support 110 has a shape corresponding to that of the anti-rotation unit 3 and is configured to be inserted into the anti-rotation unit 3 . The rotation of the scan body 100 is prevented in a state in which the polygonal support part 110 is inserted into the rotation preventing part 3 .

And the body part 120 is formed in the overall appearance of the scan body (100). The body part 120 is coupled to the upper portion of the polygonal support part 110 .

Such a body part 120 may include a tapered part 121 and an extension part 122 .

Here, the tapered portion 121 is coupled to the upper portion of the polygonal support 110 . The tapered portion 121 is configured to be supported by the tapered insertion portion 2 when the scan body 100 and the fixture are coupled.

The first position display unit 123 is formed on the tapered portion 121 . Here, the first position display part 123 is formed on the outer surface of the tapered part 121 so that when the scan body 100 and the fixture 10 are coupled, the male screw part 220 and the female screw part 4 are at the normal coupling position. It is formed so that the user can check whether the screw connection is made. That is, through the first position display unit 123 , the user can check whether the male screw part 220 and the female screw part 4 are accurately coupled.

As shown in Fig. 4 (a), when the scan body 100 and the fixture 10 are coupled, when the male screw part 220 and the female screw part 4 are screwed to the normal coupling position, the male screw part ( 220) may be in a state in which two or three of the threads are screwed to the female thread part (4). In this coupled state, the lower portion of the first position display unit 123 coincides with the upper surface of the fixture 10 . Accordingly, the user can easily determine whether the screw coupling of the male screw part 220 and the female screw part 4 is correctly made at the normal coupling position through the position of the first position display unit 123 and the upper surface of the fixture 10 .

On the other hand, as shown in FIG. 4 (b), in the state in which the male screw part 220 and the female screw part 4 are erroneously coupled, the lower part of the first position display part 123 does not coincide with the upper surface of the fixture 10. does not

And when a scan operation is performed in a state in which the scan body 100 and the fixture 10 are combined, the first position display unit 123 accurately identifies the position of the upper surface of the fixture 10 from the scan data obtained through the scan operation. made to be

The first position indicator 123 may be formed in the form of a groove or a protrusion on the outer surface of the tapered part 121 , and in the present invention, the shape in which the first position indicator 123 is a groove will be described as an example.

And the extension portion 122 is coupled to the upper portion of the tapered portion (121). The extension 122 may have a cylindrical shape.

The second position display unit 124 is formed on the extension portion 122 . Here, the second position display unit 124 may be formed in the form of a groove or a protrusion like the first position display unit 123 , and in the present invention, the shape of the second position display unit 124 as a groove will be described as an example.

The second position display unit 124 is spaced apart from the first position display unit 123 by a predetermined distance. In this case, the separation distance of the second position display unit 124 spaced apart from the first position display unit 123 may be a distance predetermined by the user.

When a scan operation is performed in a state in which the scan body 100 and the fixture 10 are combined, the second position display unit 124 is a second position display unit 124 that is separated from the upper surface of the fixture 10 by a predetermined height. It is possible to grasp the structure and shape of the teeth around the second position display unit 124 through the .

On the other hand, the grip portion 130 is provided on one upper side of the body portion (120). The grip portion 130 is configured to protrude outward from the extension portion 122 .

Such a holding unit 130 is configured to facilitate coupling and movement of the scan body 100 when a user couples the scan body 100 to the fixture 10 . That is, as the holding unit 130 is provided in the scan body 100 , the user can easily move the scan body 100 into the patient's oral cavity while holding the holding unit 130 .

And even when the fixing screw 200 and the fixture 10 are screwed together, the user can couple the fixing screw 200 to the fixture 10 while holding the gripper 130 , so the fixing screw 200 and the fixture The screw coupling of (10) can be made simply. That is, as the grip portion 130 protrudes outward from the extension portion 122 , the user can accurately and conveniently couple the fixing screw 200 to the fixture 10 while holding the grip portion 130 . can

The end side 131 of the holding part 130 is made to be parallel to any one surface of the rotation preventing part 3 . That is, the short side side 131 of the holding part 130 is made to be parallel to any one surface of the rotation preventing part 3 forming a hexagon. In this way, the end side 131 of the gripper 130 is made to be parallel to any one surface of the rotation preventing unit 3 When the scan operation is made in the state in which the scan body 100 and the fixture 10 are combined, This is to accurately determine the direction of the hexagonal groove of the rotation preventing unit 3 provided in the fixture 10 .

Meanwhile, the fixing screw 200 may fix the scan body 100 to the fixture 10 through screw coupling with the female screw part 4 .

The fixing screw 200 may include a coupling guide part 210 , a male screw part 220 , a connection bar 230 , and a screw body part 240 .

Here, the coupling guide part 210 is provided at the lower end of the fixing screw 200 . The coupling guide portion 210 is formed to have a cylindrical shape, and to have an outer diameter corresponding to the trough diameter of the male screw portion 220 .

This coupling guide part 210 is inserted into the inner diameter of the female screw part 4 before the male screw part 220 and the female screw part 4 are screwed together, and the male screw part inserted into the female screw part 4 ( 220) will guide the coupling direction. Therefore, the fastening screw 200 and the fixture 10 can be quickly and accurately coupled.

In addition, as shown in FIG. 4 , the coupling guide part 210 prevents the male screw part 220 and the female screw part 4 from being screwed together in a state in which the scan body 100 and the fixture 10 are erroneously coupled. do. That is, the coupling guide unit 210 prevents the screw coupling itself of the male screw part 220 and the female screw part 4 when the scan body 100 and the fixture 10 are not accurately coupled. Accordingly, the fixing screw 200 in a state in which the scan body 100 and the fixture 10 are not accurately coupled is made to rotate away from the fixture 10 .

In other words, the coupling guide unit 210 is made to be screwed between the male screw part 220 and the female screw part 4 only when the scan body 100 and the fixture 10 are accurately coupled.

Accordingly, it is possible to prevent a problem in that the conventional scan adapter and the fixture 10 are not accurately coupled, so that the information of the scan data obtained through the combination of the scan adapter and the fixture 10 is not accurate. Accordingly, the restoration manufactured through the scan data can also be manufactured accurately.

And the male thread part 220 is provided on the upper portion of the coupling guide part 210, and is made to be screwed with the female thread part (4).

And the connecting bar 230 is provided on the upper part of the male screw part 220 and is made to connect the male screw part 220 and the screw body part 240 .

The outer diameter of the connecting bar 230 may be formed smaller than the trough diameter of the male screw portion 220 .

For example, after the male screw part 220 is screwed to the screw coupling part 125 formed on the inner surface of the tapered part 121, the connection bar 230 in a state passing through the screw coupling part 125 is the screw coupling part ( 125). At this time, as the outer diameter of the connecting bar 230 is formed to be smaller than the trough diameter of the male screw part 220 , the fixing screw 200 may be moved up and down within a predetermined distance range. Here, the length of the connecting bar 230 is formed to be longer than the height of the screw coupling portion 125 , so that the fixing screw 200 can be moved up and down within a predetermined distance range.

And the screw body 240 is provided on the connection bar 230 .

Here, a tool insertion groove 241 for rotating the fixing screw 200 using a separate tool may be formed on the upper surface of the screw body 240 . Such a tool insertion groove 241 may be formed of, for example, a polygon.

Here, the upper surface of the screw body 240 in a state in which the scan body 100 and the fixture 10 are accurately coupled is formed to be flush with the upper surface of the scan body 100, so that the user can use the screw body 240 It is possible to check the exact coupling state of the scan body 100 and the fixture 10 through the upper surface of the scan body 100 and the upper surface of the.

5 is an exploded perspective view of a scan body assembly according to another embodiment of the present invention, and FIG. 6 is a combined cross-sectional view showing the scan body assembly coupled to a fixture according to another embodiment of the present invention.

Components indicated by the same reference numerals as those shown in FIGS. 1 to 4 have the same function, and a detailed description of each of them will be omitted.

As shown in FIGS. 5 and 6 , the scan body assembly 1000 ′ according to another exemplary embodiment is different in the configuration of the fixing screw 200 ′.

The fixing screw 200 ′ may further include a screw rotating part 250 provided on the screw body 240 .

The non-slip part 251 is formed on the outer surface of the screw rotating part 250 , so that the user does not need to rotate the fixing screw 200 ′ using a separate tool. That is, the user may rotate the fixing screw 200 ′ while holding the non-slip part 251 to screw the fixing screw 200 ′ and the fixture 10 . Such an anti-slip part 251 may be formed of, for example, a groove or a hole having a specific pattern.

In addition, it goes without saying that a tool insertion groove 252 for rotating the fixing screw 200 ′ using a separate tool may be further formed on the upper surface of the screw rotating unit 250 .

In addition, the fixing screw 200 ′ may be provided with a marking unit 253 for identifying an accurate coupling state between the male screw portion 220 and the female screw portion 4 . Such a marking unit 253 is made to coincide with the upper surface of the scan body 100 in a state in which the scan body 100 and the fixture 10 are accurately coupled.

Accordingly, the user can check whether the scan body 100 and the fixture 10 are accurately coupled through the marking unit 253 and the upper surface of the scan body 100 .

However, this is only a preferred embodiment of the present invention, and the scope of the present invention is not limited by the scope of the present invention.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1: Insertion fixture
2: Tapered insert
3: anti-rotation part
4: female thread part
10: fixture
100: scan body
110: multi-sided support
120: body part
121: tapered part
122: extension
123: first position display unit
124: second position display unit
125: screwed portion
130: grip part
131: the end side of the grip part
200, 200': set screw
210: coupling guide unit
220: male thread part
230: connection bar
240: screw body
241: tool insertion groove
250: screw rotating part
251: non-slip part
252: tool insertion groove
253: marking unit
1000, 1000': scan body assembly

Claims (7)

a scan body that is inserted and coupled to the insertion fixing part of the fixture implanted in the alveolar bone; and
and a fixing screw coupling the fixture and the scan body, and having a female threaded part formed in the insertion fixing part and a male threaded part screwed together,
The scan body is
a polygonal support part having a shape corresponding to the rotation preventing part formed in the insertion fixing part and being inserted into the rotation preventing part;
a body portion coupled to an upper portion of the polygonal support portion; and
It is provided on one upper side of the body part, and includes a grip part protruding outward from the body part,
The body portion may include a tapered portion coupled to an upper portion of the polygonal support portion; and an extension portion coupled to an upper portion of the tapered portion, wherein a first position display unit for detecting a coupling state of the male and female screw portions is formed on the tapered portion, and the extension portion has a predetermined distance from the first position display portion A second position display unit spaced apart from each other is formed,
The scan body and the fixture are coupled so that the lower side of the first position indicator coincides with the upper surface of the fixture, and the second position indicator unit is separated from the upper surface of the fixture by a predetermined distance from the tooth structure and A scan body assembly configured to determine a shape.
The method of claim 1,
The scan body assembly, characterized in that the end side of the grip portion is made to be parallel to any one surface of the rotation preventing portion.
According to claim 1,
The fixing screw is
a coupling guide part provided under the male screw part and guiding a coupling direction of the male screw part;
a connection bar provided on the upper part of the male screw part; and
It includes a screw body portion provided on the upper portion of the connection bar,
The coupling guide part is configured to prevent the male screw part and the female screw part from being screwed together when the scan body and the fixture are erroneously coupled.
4. The method of claim 3,
The coupling guide part is a scan body assembly, characterized in that it is formed to have an outer diameter corresponding to the gorge diameter of the male screw part.
delete 4. The method of claim 3,
The fixing screw is made to further include a screw rotating part provided on the upper part of the screw body,
The scan body assembly, characterized in that the screw rotating unit is provided with a marking unit for detecting the coupling state of the male and female screw units, and an anti-skid unit configured to rotate while holding the fixing screw.
4. The method of claim 3,
A screw coupling portion screwed to the male screw portion is formed on an inner surface of the tapered portion, and an outer diameter of the connection bar is formed smaller than a rib diameter of the male screw portion.

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