Scanning post

Abstract

To provide a scanning post which prevents a fastening member from falling off during assembly in the art of oral implants.SOLUTION: A scanning post includes a scanning post positioning portion provided with an inner cavity. A first fastening member 2 is provided in the inner cavity. The first fastening member includes a position limiting portion and a fastening portion. A bottom part of the scanning post positioning portion is provided with a mounting hole for the fastening portion to pass through. The bottom part of the scanning post positioning portion and the position limiting portion are combined while being limited in position along an extending direction of the inner cavity. The fastening portion passes through the mounting hole to be connected to an implant. The inner cavity passes through an upper end of the scanning post positioning portion for allowing a user to operate the first fastening member.SELECTED DRAWING: Figure 1a

Description

[Technical Field]

[0001] The present invention relates to the technical field of intraoral implants, and in particular to scan posts. [Background technology]

[0002] Currently, conventional impression taking techniques and conventional scan post scanning techniques using digital impression systems are often used for jawless intraoral implants, but the conventional impression taking techniques involve complicated steps and are time-consuming. In the conventional scan post scanning techniques using digital impression systems, the scan post generally includes a positioning part, which is fixed to the implant by a clamping member. The current scan post has many shortcomings due to its single feature, the clamping member being prone to falling off during the installation process, the scan post positioning part being prone to rotating when the scan post is installed, and limitations on the manufacturing process and materials. Summary of the Invention [Problem to be solved by the invention]

[0003] The present application aims to provide a scan post that can solve at least one of the problems that currently arise due to the common scan post scanning techniques that are often adopted using conventional impression taking techniques and digital impression systems. [Means for solving the problem]

[0004] According to a first embodiment of the present application, a scan post positioning portion is provided, the scan post positioning portion is provided with an internal cavity, a first fastening member is provided in the internal cavity, the first fastening member includes a position limiting portion and a fastening portion, the bottom of the scan post positioning portion is provided with an attachment hole through which the fastening portion passes, the bottom of the scan post positioning portion and the position limiting portion are combined and position-limited along the extension direction of the internal cavity, the fastening portion passes through the attachment hole and is connected to the implant, and the internal cavity provides a scan post that penetrates the upper end of the scan post positioning portion so that the user can operate the first fastening member.

[0005] In a preferred embodiment, the scan post positioning portion is provided with a separation prevention structure for preventing the first fastening member from separating from the internal cavity.

[0006] In a preferred embodiment, the anti-detachment structure includes a circular ring or a plurality of protrusions arranged in a ring shape that are provided on the internal cavity wall and protrude inward from the internal cavity wall, and / or the anti-detachment structure is provided on the positioning top.

[0007] In a preferred embodiment, the internal cavity wall limits the position of the first fastening member along the extension direction of the internal cavity, or the bottom of the scan post positioning portion is provided with a position limiting hole for positionally limiting and combining with an implant.

[0008] In a preferred embodiment, a first preload member is provided between the position limiting portion and the bottom end of the scan post positioning portion, and the first preload member is fitted onto the outer wall of the clamping portion.

[0009] In a preferred embodiment, the first preload member is positionally restricted between the position restricting portion and the bottom end of the scan post positioning portion along the extension direction of the internal cavity.

[0010] In a preferred embodiment, the scan post positioning portion includes a positioning base and a positioning top, and the positioning base and the positioning top are connected as separate bodies, or the positioning base and the positioning top are integrally molded.

[0011] In a preferred embodiment, the positioning base and the positioning top are connected as separate pieces, and the separate connection between the positioning base and the positioning top is by an interference fit, a screw fit or a snap fit, and / or the separate connection between the positioning base and the positioning top is an irreversible attachment connection.

[0012] In a preferred embodiment, the scan post indicator is provided on the scan post positioning portion and extends laterally outward from the scan post positioning portion, the scan post indicator has an upper surface, and indicators located at different heights are provided on the upper surface.

[0013] In a preferred embodiment, the scan post sign includes a plurality of upper surfaces, the plurality of upper surfaces being located at different heights, or the upper surfaces being inclined, and / or the scan post sign has a stepped structure, the upper surface of the scan post sign is formed by a step top surface and a step bottom surface, and the signs are provided on the step top surface and the step bottom surface, and / or the signs include sign points. [Effects of the Invention]

[0014] The embodiments of the present application have the following advantageous effects compared to the prior art: The bottom of the scan post positioning part and the position limiting part of the first clamping member are combined by limiting their positions along the extension direction of the internal cavity, providing a novel coupling method between the scan post positioning part and the first clamping member, and limiting the position of the position limiting part of the first clamping member to the internal cavity along the extension direction of the internal cavity, thereby preventing the clamping member from falling off during the assembly process. [Brief explanation of the drawings]

[0015] [Figure 1a] FIG. 1 is an exploded view of a scanning post according to an embodiment of the present invention. [Figure 1b] 1 is an assembly diagram of a scanning post according to an embodiment of the present invention; [Figure 2a] FIG. 1 is a front view of a positioning base according to an embodiment of the present application. [Figure 2b] 1 is a cross-sectional view of a positioning base according to an embodiment of the present application. [Figure 3] FIG. 2 is a cross-sectional view of an assembled scan post according to an embodiment of the present application. [Figure 4a] 10A-10C illustrate positioning tips according to embodiments of the present application. [Figure 4b] FIG. 1 is a plan view of a positioning top according to an embodiment of the present application. [Figure 5] 1A and 1B are diagrams illustrating the structure of a fastening member according to an embodiment of the present application. [Figure 6a] FIG. 1 is a front view of a scan post sign according to an embodiment of the present application. [Figure 6b] 1 is a diagram illustrating the structure of a scan post sign according to an embodiment of the present application. [Figure 7] FIG. 2 is a plan view of a scan post sign according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0016] In order to clarify the problems to be solved, technical solutions and advantageous effects of the present application, the present application will be described in more detail below with reference to the drawings and examples. Note that the specific examples described herein are merely for the purpose of interpreting the present application and are not intended to limit the present application.

[0017] It should be noted that when an element is described as being "fixed" or "mounted" on another element, it may be directly connected to the other element or indirectly connected to the other element. When an element is described as being "connected" to another element, it may be directly connected to the other element or indirectly connected to the other element.

[0018] It should be noted that orientations or positional relationships expressed by terms such as "length," "width," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" are orientations or positional relationships based on the drawings and are intended merely for the purpose of simplifying the explanation and description of the present application, and do not indicate or imply that such devices or parts must necessarily have a particular orientation or be configured or operated in a particular orientation, and should not be understood as limiting the present application.

[0019] It should also be understood that terms such as "first" and "second" are merely descriptive and do not indicate or imply the relative importance or quantity of the technical features indicated. Thus, a feature qualified by "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, "plurality" means two or more, unless otherwise specified.

[0020] The present application is intended to solve at least one problem that currently arises due to the use of conventional impression taking techniques and common post-scan scanning techniques with digital impression systems.

[0021] Specifically, to facilitate understanding of the present application, the present embodiment first provides the basic structure of an intraoral scan post. FIG. 1a is an exploded view of a scan post according to one embodiment of the present application, FIG. 1b is an assembled view of a scan post according to one embodiment of the present application, and FIG. 3 is a cross-sectional view of an assembled scan post according to another embodiment. The scan post includes a scan post positioning portion, which includes a positioning top portion 1 and a positioning base portion 4. The positioning top portion 1 and the positioning base portion 4 form the scan post positioning portion. The scan post positioning portion has an internal cavity 6, which is provided with a first clamping member 2. The first clamping member 2 is movable within the internal cavity 6 along the extension direction of the internal cavity 6. One end of the first clamping member 2 extends from the bottom of the positioning base 4 and is connected and fixed to an implant (not shown), and the other end is positionally restricted and combined with the bottom of the positioning base 4, thereby connecting and fixing the scan post to the implant.

[0022] Furthermore, the position-restricted combination of the other end of the first fastening member 2 and the bottom of the positioning base 4 means that, structurally, the other end of the first fastening member 2 cannot extend beyond the bottom of the positioning base 4, and the positioning base 4 is fixed to the implant by the first fastening member 2.

[0023] In addition, the term "positionally restricted combination" of the other end of the first clamping member 2 with the bottom of the positioning base 4 in this application specifically means that the other end of the first clamping member 2 is restricted in position by the bottom of the positioning base 4 and cannot pass through the bottom. The top of the positioning base 4 may be located higher than the bottom of the positioning base 4, i.e., in some embodiments, the other end of the first clamping member 2 may be restricted in position by the top of the positioning base 4, which also falls under the category of "the other end of the first clamping member 2 is restricted in position and combined with the bottom of the positioning base 4." As shown in FIGS. 2b and 4a, the internal cavity 6 of the scan post positioning part can be divided into a first internal cavity 401 of the positioning base 4 and a second internal cavity 402 of the positioning top 1. As shown in FIG. 5, the first fastening member 2 includes a position limiting portion 21 and a fastening portion 22, and the fastening portion 22 passes through the mounting hole 43 and is attached to the implant and assembled (e.g., screwed), the first internal cavity 401 includes the mounting hole 43, and the position limiting portion 21 is positionally limited within the second internal cavity 402, thereby allowing the scan post to be fixed to the implant by the cooperation of the position limiting portion 21 and the fastening portion 22.

[0024] 2a and 2b, the internal positional relationship between the first clamping member 2, the positioning top 1, and the positioning base 4 will be further described. FIG. 2a is a front view of a positioning base according to an embodiment of the present application, and FIG. 2b is a cross-sectional view of the positioning base according to an embodiment of the present application. As shown in FIGS. 2a and 2b, the first internal cavity 401 of the present application can specifically include a first clamping member accommodating cavity 41, a mounting hole 43, and a scanning post mounting cavity 44. The combination axis position 42 of the positioning base 4 is mounted in the second internal cavity 402 of the positioning top 1. When the positioning base 4 and the positioning top 1 are assembled and the first internal cavity 401 and the second internal cavity 402 are connected to each other, the internal cavity 6 is formed. As shown in the figure, the inner diameter of the first fastening member accommodating cavity 41 is larger than the inner diameter of the mounting hole 43, and a step structure is formed by the internal cavity walls of the first fastening member accommodating cavity 41 and the internal cavity walls of the mounting hole 43, whereby the position limiting portion 21 of the first fastening member 2 is positionally limited within the first fastening member accommodating cavity 41 and the second cavity 402 of the positioning top portion 1 by the step structure, thereby realizing that "the position limiting portion of the first fastening member 2 is combined with the bottom of the positioning base 4 in a positionally limited manner." Of course, the present application may further include other position limiting structures, which will not be listed here.

[0025] In the embodiment of the present application, the wall of the internal cavity 6 restricts the position of the first fastening member 2 along the extension direction of the internal cavity 6, thereby allowing the first fastening member 2 to move within the internal cavity 6, and the coupling between the scan post positioning portion and the implant can be achieved by manipulating the first fastening member 2. Note that in the embodiment of the present application, the extension direction of the internal cavity 6 is from top to bottom or from bottom to top in FIG. 1b, i.e., the "vertical" direction, but a description of this will be omitted in the present application.

[0026] Furthermore, in the embodiment of the present application, the scan post mounting cavity 44 is provided at the bottom of the scan post positioning portion and is a position limiting hole for limiting the position and combining with the implant, the inner diameter of the scan post mounting cavity 44 is larger than the inner diameter of the mounting hole 43, and a step structure is formed by the internal cavity wall of the scan post mounting cavity 44 and the internal cavity wall of the mounting hole 43, thereby limiting the position of the implant within the scan post mounting cavity 44 by the step structure.

[0027] In concrete use, it is necessary to couple and fix the positioning base 4 of the scan post to the implant, and then fix the scan post to the implant to scan the inside of the oral cavity. The scan post positioning portion is columnar, and may be cylindrical or hexagonal.

[0028] Here, in one embodiment, a scan marking portion is provided on the scan post positioning portion, the scan marking portion extends laterally outward from the scan positioning portion, and a marking is provided on the surface of the scan marking portion.

[0029] The following will describe in detail the different aspects of the technical innovations that the present invention has developed based on the above structure.

[0030] 1. Anti-detachment structure 1 to 4b, this embodiment provides a scan post including a scan post positioning portion to prevent a first clamping member 2 from coming off the top of the scan post. The scan post positioning portion includes an internal cavity 6, a first clamping member 2 is provided in the internal cavity 6, the first clamping member 2 includes a position limiting portion 21 and a clamping portion 22, a mounting hole 43 is provided at the bottom of the scan post positioning portion, the bottom of the scan post positioning portion and the position limiting portion 21 are combined and position-restricted along the extension direction of the internal cavity 6, the clamping portion 22 passes through the mounting hole and is connected to the implant, the internal cavity 6 penetrates the upper end of the scan post positioning portion to allow a user to operate the first clamping member 2, and the scan post positioning portion is provided with a separation prevention structure 11 to prevent the first clamping member 2 from coming off the internal cavity. The internal cavity 6 includes a mounting hole 43, and the extension direction of the internal cavity 6 is the axial direction of the mounting hole 43, that is, the mounting direction of the first fastening member.

[0031] According to the above description of the overall structure of the scan post and the connections between each component, an internal cavity 6 is provided in the scan post positioning section, and the bottom of the scan post positioning section and the position limiting section 21 are combined by restricting the position along the extension direction of the internal cavity 6. Then, the first fastening member 2 is completely embedded in the internal cavity 6 by the anti-detachment structure 11, thereby preventing the first fastening member from detaching, and also solving the problem of the first fastening member 2 and the scan post becoming inconvenient to carry or being easily lost due to separation from the scan post.

[0032] In the embodiment of the present application, the bottom of the scan post positioning portion is also the bottom of the positioning base 4, but the description thereof will be omitted in the present application.

[0033] Specifically, the separation prevention structure 11 is provided in the upper end region of the positioning top 1, and the separation prevention structure 11 can prevent the first fastening member 2 from escaping from the positioning top.

[0034] For example, the anti-detachment structure 11 of the present application may be formed by the internal cavity wall at the top of the internal cavity 6, or the anti-detachment structure 11 of the present application may be attached to the internal cavity wall at the top of the internal cavity 6 and restrict the position of the first fastening member 2, thereby preventing the first fastening member 2 from escaping.

[0035] Illustratively, the separation prevention structure of the present application includes a circular ring or a plurality of protrusions arranged in a ring shape that are provided on the inner cavity wall and protrude inward from the inner cavity wall.

[0036] In one possible embodiment, the anti-detachment structure 11 is a protruding circular ring, which may be positioned in the second internal cavity 402 near the top of the positioning top 1 to prevent the first fastening member 2 from escaping from the top of the positioning top 1.

[0037] In another possible embodiment, the anti-detachment structure 11 may be a plurality of protruding points, each of which is provided around the circumference at equal intervals and positioned near the top of the positioning top 1 in the second internal cavity 402, so as to effectively prevent the first fastening member 2 from escaping from the second internal cavity 402 in the positioning top 1.

[0038] For example, as shown in FIG. 3, the anti-detachment structure 11 in the embodiment of the present application may be formed by reducing the diameter of the internal cavity 6, i.e., the diameter of the position limiting portion 21 of the first fastening member 2 may be set to be larger than the inner diameter of the anti-detachment structure 11, thereby realizing the anti-detachment function.

[0039] In one embodiment, the scan post further includes an elastic deformation portion, which is disposed on one of the anti-detachment structure 11 and the first fastening member 2, and which is combined with the elastic deformation portion to prevent detachment of the other of the anti-detachment structure 11 and the first fastening member 2. When the elastic deformation portion is deformed by the action of an external force, the anti-detachment combination is released, and the first fastening member 2 can be removed from the scan post.

[0040] In one embodiment, the elastic deformation portion is an O-ring, which is provided circumferentially on the first fastening member, and which is restricted in the axial direction by the separation prevention structure 11 without being deformed, and when the O-ring is deformed by the action of an external force, the axial restriction is released and the O-ring passes through the separation prevention structure 11. In another embodiment, the elastic deformation portion is provided on the separation prevention structure 11, and the first fastening member 2 is combined with the elastic deformation portion to prevent separation.

[0041] The elastic deformation portion is deformed when subjected to an external force, but can completely restore to its original shape and size when the external force is removed. In one embodiment, when the elastic deformation portion is deformed by an external force, the first clamping member can be attached to or detached from the scan post. When the elastic deformation portion is not subjected to an external force, the elastic deformation portion returns to its original shape and size, and the first clamping member and the scan post are combined in a restrictive manner via the elastic deformation portion, and the first clamping member can be placed on the scan post without being detached from the scan post.

[0042] In one embodiment, the elastic deformation portion is a circular ring or a plurality of protrusions.

[0043] The anti-detachment structure 11 of the present application effectively prevents the first fastening member 2 from escaping from the second internal cavity 402 in the positioning top 1, and avoids the problem of inconvenient assembly of the scan post to the implantation base in the oral cavity due to the escaping of the first fastening member 2. Of course, in this embodiment, the arrangement of the anti-detachment structure 11 may be other structures as long as they have the effects of position restriction and anti-detachment, but no specific limitations are given here.

[0044] In this embodiment, the position limiting portion 21 not only effectively prevents the first fastening member 2 from escaping from the positioning top 1, but also makes it convenient to operate (tighten or loosen) the first fastening member 2 while avoiding the detachment prevention structure 11, but the description of this will be omitted in this application.

[0045] The anti-detachment structure of the intraoral scan post in this embodiment is a position restriction combination between the upper end of the scan post's positioning top 1 and the position limiting portion 21 along the extension direction of the internal cavity 6, which allows the first fastening member 2 to be completely enclosed within the internal cavity 6 when the positioning top 1 and the positioning base 4 are connected, and the anti-detachment structure 11 further prevents the first fastening member 2 from escaping from the internal cavity 6, thereby improving the problem of inconvenience in assembling the scan post to the intraoral implantation base due to detachment of the first fastening member 2.

[0046] 2. Preload rotation prevention structure This embodiment provides a preload anti-rotation structure for the scan post to prevent the scan post from rotating together during the assembly process. Specifically, with continued reference to Figures 1a to 5, the scan post positioning portion of the present application has an internal cavity 6, a first clamping member 2 is provided in the internal cavity 6, the first clamping member 2 includes a position limiting portion 21 and a clamping portion 22, the bottom of the scan post positioning portion has an attachment hole 43 through which the clamping portion 22 passes, the bottom of the scan post positioning portion and the position limiting portion 21 are combined and position-restricted along the extension direction of the internal cavity 6, the clamping portion 22 passes through the attachment hole and is connected to the implant, the internal cavity 6 penetrates the bottom of the scan post positioning portion, the internal cavity 6 penetrates the bottom of the scan post positioning portion along its extension direction so that the user can operate the first clamping member 2, a first preload member 3 is provided between the position limiting portion 21 and the bottom of the scan post positioning portion, and the first preload member 3 is externally fitted to the outer wall of the clamping portion 22.

[0047] Specifically, when the scan post is attached, the first clamping member 2 is attached and fixed to the implant, and the first clamping member 2 is attached to the implant by spiral rotation (the two are screwed together).In this case, the presence of the first preload member 3 provides a cushioning effect against the rotation, preventing the scan post from rotating together.

[0048] As shown in FIG. 2b, the first clamping member 2 is attached to the mounting hole 43 of the positioning base 4 via the first preload member 3, and the first clamping member 2 passes through the bottom of the positioning base 4 via the first internal cavity 401 and is fixedly coupled to the implant.

[0049] In this embodiment, the first preload 3 may be an annular structure that is integrally connected, and in one possible embodiment, the first preload 3 may be a gasket or other open or closed annular intermediate member, but is not specifically limited here.

[0050] In addition, the first preload member 3 of the present application may be combined with the above-mentioned anti-detachment structure to form a scan post structure, or may be arranged to form an independent scan post structure based on this concept, but this is not limited here, and the preload anti-rotation structure of the present application can prevent the scan post from rotating together during the assembly process.

[0051] 3. Separate mounting structure In this embodiment, in order to solve the problems of the limited manufacturing process and materials of the conventional scan post and the need to incorporate the first clamping member, a separate scan post is provided, and the positioning base 4 and positioning top 1 of the scan post in this embodiment are provided separately.

[0052] In this way, since the positioning base 4 and the positioning top 1 in this embodiment are provided separately, they can be formed from different materials, making it possible to adapt to different oral environments and fit implant post spatial positions, thereby achieving the optimal scanning scene requirements.

[0053] Furthermore, by attaching the positioning base 4 and the positioning top 1 as separate bodies, it becomes easy to incorporate the first fastening member 2 into the internal cavity 6, and by combining this with the anti-detachment structure 11, the first fastening member 2 can be positioned in a restricted position within the internal cavity 6, and the first fastening member 2 cannot escape from the internal cavity 6 during installation and use.

[0054] Specifically, the positioning head 1 can be black-finished and made of an aluminum alloy suitable for forming landmarks. The positioning base 4 can be made of stainless steel, which has a higher hardness than the positioning head 1 and is therefore suitable for attachment and fixation to the implant. The first fastening member 2 uses a metal material with fatigue resistance. Furthermore, the positioning head 1 and positioning base 4, which are connected and attached as separate parts, can be manufactured using different processes, eliminating limitations on the manufacturing process and expanding the range of process and material options for the positioning head 1 and positioning base 4. This solves the problem of the difficulty of forming landmarks or the inability to ensure hardness in the conventional one-piece molding solution.

[0055] In the present embodiment, specifically, the separate connection between the positioning base 4 and the positioning top 1 is achieved by an interference fit, a screw fit or a snap fit.

[0056] For example, a tight fit can be formed by limiting the size of the connection diameter, and similarly, threading can be achieved by forming male and female threads on the corresponding surfaces of the positioning base 4 and the positioning top 1, so the separate connection of the present application can be expressed by structure, and further, separate connections and integral connections can be structurally distinguished.

[0057] In addition, the separate connection method described above in the present application may be a reversible connection method, i.e., a method that allows for detachment and reconnection. In another preferred embodiment of the present application, the separate connection between the positioning base and the positioning top may be an irreversible attachment connection, i.e., a method that cannot be detached after connection, but this is not limited to this. In the present application, an irreversible attachment is preferred to ensure stability while ensuring the rigidity of the scanning post.

[0058] 4. Scan Post Sign Section This embodiment provides a scan post structure to solve the problem of the single feature of the scan post existing in the conventional scan post technology. The scan post according to the embodiment of the present application further includes a scan post marking part 5, which is provided on the scan post positioning part and extends outward from the scan post positioning part in a horizontal direction, and has an upper surface on which marks are provided at different heights.

[0059] In this embodiment, markers at different heights are provided on the top surface of the scan post marker unit 5 to create spatial marker points, enabling three-dimensional positioning for the scan post marker positioning unit. This increases the spatial distribution dimension of the markers and improves the positioning and identification accuracy of the markers after scanning. Furthermore, the markers at different heights may be the same or different, increasing the variety of features and further improving positioning accuracy. When the markers are distributed on the top surface, scanning by the scanner is easier and the need to adjust the scanner's scanning angle can be reduced.

[0060] In the present embodiment, as shown in Figures 6a, 6b, and 7, the ScanPost sign unit 5 has a stepped shape. In this way, two upper surfaces with different heights are formed by the step top surface 511 and the step bottom surface 512, and by providing signs on the two upper surfaces with different heights, the signs have different heights.

[0061] In this embodiment, since signs of different heights can be formed, landmarks distributed in three dimensions can be obtained by simply scanning the top surface when scanning with a scanner. In other words, there is no need to adjust the scanning angle of the scanner, and spatial landmarks distributed in three dimensions can be obtained by simply scanning a single surface. In this application, by distributing landmarks in three dimensions, the scanning accuracy can be improved, and by distributing landmarks in different dimensions, the data collection accuracy can be better controlled.

[0062] Furthermore, in the embodiments of the present application, the markers may be marker points, code points, or other geometric shapes, but the present application is not limited thereto.

[0063] In an embodiment of the present application, as shown in FIG. 7, a mark 5111 is provided on the top surface 511 of the step, and a mark 5121 is provided on the bottom surface 512 of the step. The mark may be a characteristic point or a characteristic shape, such as a circle, a triangle, etc., and the mark may include one or more marks, but this is not limited thereto in the present application.

[0064] In an embodiment not shown, the shape of the scan post sign unit 5 is a polyhedron, and since each face of the polyhedron is not located on the same plane, the scan post sign unit 5 may include multiple upper faces of different heights, and the sign may be formed on each upper face. In one possible embodiment, it is hexagonal, and each of the different faces can be used to create spatial landmarks, which is advantageous for creating spatial landmarks and improving the accuracy of spatial positioning of the scan post positioning unit.

[0065] In another embodiment, the upper surface of the scan post sign unit 5 of the present invention may be an inclined surface, and signs of different heights may be formed on the inclined surface.

[0066] In another embodiment, the upper surface of the scan post sign unit 5 of the present application may be a curved surface, and signs of different heights may be formed on the curved surface, and it is preferable that the curved surface has a gradual change in curvature.

[0067] Furthermore, in the embodiment of the present application, the shapes of the marks on the scan post marking section 5 of each scan post may be the same or different.

[0068] 1a, in a preferred embodiment, the ScanPost sign 5 includes a sign body 51 and a second fastening member 52, the sign body 51 is connected to the positioning top 1 by the second fastening member 52, and the second fastening member 52 is combined with and positioned at one end of the sign body 51 near the positioning top 1. The sign is provided on the surface of the sign body 51.

[0069] In a preferred embodiment, the scan post sign 5 includes a third internal cavity, and the second fastening member 52 extends through the third internal cavity and is positionally coupled to the positioning top 1 .

[0070] In addition, the scan post according to the present application further provides a second preload member 53 corresponding to the second clamping member 52. As shown in Fig. 1a, the scan post sign 5 includes the second preload member 53, which is fitted onto the outer wall of the second clamping member 52 and combined with one end of the second clamping member 52 remote from the positioning top 1 in a position-restricted manner, i.e., the second clamping member 52 fixes the scan post sign 5 to the scan post positioning member via the second preload member 53.

[0071] In addition, in a preferred embodiment, the position limiting combination method of the second fastening member 52 and the second preload member 53 in this embodiment is the same as the position limiting combination method of the first fastening member 2 and the first preload member 3, so by providing the second preload member 53, the effect of preventing co-rotation can also be achieved when the scan mark main body 51 is connected to the positioning top 1 via the second fastening member 52.

[0072] The sign body 51 may have a structure similar to that of the scan post positioning part, that is, it may be a separate body or may be formed integrally, but this is not limited thereto in the present application.

[0073] Similarly, the sign body 51 may include a sign body base and a sign body top, and the second fastening member 52 may be attached to the bottom of the sign body base and connected to the side wall of the positioning top, further connecting and fixing the scan post sign body and the positioning top.

[0074] The scan post sign unit 5 and the scan post positioning unit may be attached as separate units or may be integrally molded, but this is not a limitation in the present application.

[0075] In the present application, the scan post marking portion 5 and the positioning top portion 1 are preferably integrally molded, and may be integrally molded from the same material, and the markings may be distributed on the surface of the positioning top portion 1. The markings are distributed on each surface of the scan post marking portion 5 and each surface of the positioning top portion 1.

[0076] In the embodiments of the present application, the present application further arranges a scan post sign 5 as a separate structure, divides the scan post positioning part and the scan post sign 5 into two parts, and fixes the scan post sign 5 to the scan post positioning part along the extension direction of the third internal cavity (i.e., the horizontal direction in the drawing) with a second fastening member 52, thereby making it convenient to use the scan post positioning part in combination with scan post sign 5s of different lengths and shapes, which can be adapted to different oral environments and fit implant post spatial positions, and can meet the requirements of different scanning scenes.

[0077] In addition, in a preferred embodiment, the scan post sign 5 is made of an aluminum alloy material with a black surface, and other parts are made of fatigue-resistant materials. The scan post sign 5 and the scan post positioning part are assembled separately using a second fastening member, so different materials can be used. In this way, the scan post positioning part does not need to be made of the same material as the scan post sign 5, and can be made of a stronger stainless steel material, making it suitable for a wider range of applications.

[0078] Based on the same innovation concept, the separate connection between the sign body base and the sign body top can be achieved by interference fit, threaded or snap fit, which will not be described here.

[0079] Furthermore, in the embodiments of the present application, a detachment prevention structure may be arranged within the scan post sign portion, and details of the structure can be referred to the detachment prevention structure in the scan post positioning portion in the embodiments of the present application, so the description thereof will be omitted in the present application.

[0080] In addition, of the above four core concepts of the present application, any one of the core concepts may be selectively combined with other core concepts, or the scan post may be arranged alone; for example, the scan post may be included in a separate mounting structure relative to the anti-detachment structure, and the scan post structure may be formed together with the separate mounting structure, or the scan post structure may be formed independently, but this is not limited to this in the present application.

[0081] In the most preferred embodiment, by combining the above four concepts of this application into the structure of the scan post, the scan post can solve all the technical problems of the prior art, but the description thereof will be omitted in this application.

[0082] For the sake of clarity and brevity, the above-described division of each functional unit or module has been described as an example. However, in actual applications, the above functions can be assigned to different functional units or modules as needed. That is, the internal structure of the device can be divided into different functional units or modules to achieve all or part of the above-described functions. The functional units or modules in the embodiments may be integrated into a single processing unit, or each unit may physically exist separately, or two or more units may be integrated into a single unit. Furthermore, the specific names of the functional units and modules are merely used to distinguish them from one another and are not intended to limit the scope of protection of the present application. The specific operational processes of the units and modules in the above-described system can be referenced to the corresponding processes in the method embodiments described above, and therefore, the description thereof will be omitted here.

[0083] In the above embodiments, the descriptions for each embodiment focus on different aspects, and for parts that are not detailed or described in one embodiment, reference can be made to the relevant descriptions in other embodiments.

[0084] The units described as separate components may or may not be physically separated, and the components described as units may or may not be physical units, may be located in one place, or may be distributed among multiple units, and some or all of the units may be selected according to actual needs to achieve the objectives of the technical solution of this embodiment.

[0085] The above examples are merely for illustrating the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the above examples, those skilled in the art may still modify the technical solutions described in the above examples or substitute some technical features therein with equivalents, and these modifications or substitutions do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the respective examples of the present application. [Explanation of symbols]

[0086] 1 Positioning top 11 Anti-detachment structure 2. First fastening member 21 Position restriction section 22 Fastening part 3. First preload member 4 Positioning base 401 First internal cavity 402 Second internal cavity 41 First fastening member receiving cavity 42 Combination axis position 43 Mounting hole 44 Scan Post Mounting Cavity 5 Scan Post Sign 51 Sign body 52 second fastening member 53 second preload member 511 Step top surface 512 Bottom of step 5111, 5121 signs 6. Internal Cavity

Claims

1. a scan post positioning unit; The scan post positioning portion has an internal cavity; a first clamping member is provided in the internal cavity; the first fastening member includes a position limiting portion and a fastening portion; a mounting hole through which a fastening part passes is provided at the bottom of the scan post positioning part; The bottom of the scan post positioning portion and the position limiting portion are combined to limit the position along the extension direction of the internal cavity, The fastening portion is connected to the implant through the mounting hole; the internal cavity extends through an upper end of the scan post positioning portion to allow a user to manipulate the first clamping member; ScanPost is characterized by:

2. The scan post positioning portion is provided with a separation prevention structure for preventing the first fastening member from separating from the internal cavity. The scan post according to claim 1 .

3. the separation prevention structure is provided on the internal cavity wall and includes a circular ring or a plurality of protrusions arranged in an annular shape protruding inward from the internal cavity wall; and / or further comprising an elastic deformation portion, the elastic deformation portion being disposed on one of the separation prevention structure and the first fastening member, and the other of the separation prevention structure and the first fastening member being combined with the elastic deformation portion so as to be capable of preventing separation. The scan post according to claim 2 .

4. an internal cavity wall of the internal cavity restricts the position of the first clamping member along the extension direction of the internal cavity; or The bottom of the scan post positioning portion is provided with a position limiting hole for position-limiting and combining with an implant.

2. The scan post according to claim 1,

5. a first preload member is provided between the position limiting portion and a bottom end of the scan post positioning portion, and the first preload member is fitted onto an outer wall of the first fastening portion; The scan post according to claim 1 .

6. the first preload member is positionally restricted between the position restricting portion and a bottom end of the scan post positioning portion along the extension direction of the internal cavity; The scan post according to claim 5 .

7. The scan post positioning portion includes a positioning base portion and a positioning top portion; The positioning base and the positioning top are connected as separate pieces, or The positioning base and the positioning top are integrally molded. The scan post according to any one of claims 1 to 6.

8. The positioning base and the positioning top are connected as separate bodies, The separate connection between the positioning base and the positioning top is by means of an interference fit, a threaded fit or a snap fit; and / or The separate connection between the positioning base and the positioning top is an irreversible attachment connection. The scan post according to claim 7 .

9. a scan post indicator portion provided on the top of the scan post positioning portion and extending laterally outward from the scan post positioning portion; the scan post sign has an upper surface; The upper surface is provided with markers located at different heights. The scan post according to claim 1 .

10. a plurality of the upper surfaces; the upper surfaces are located at different heights or the upper surfaces are inclined; and / or The scan post sign has a step structure, and the top surface of the scan post sign is formed by a step top surface and a step bottom surface, and the sign is provided on the step top surface and the step bottom surface, and / or The marker comprises a landmark. The scan post according to claim 9 .

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