Scan loss

Abstract

Scan rod, comprising a positioning section of the scan rod, thereby characterized that the positioning section of the scan rod is provided with an inner cavity, wherein a first fastening element is arranged in the inner cavity, the first fastening element comprising a limiting section and a fastening section, wherein an installation hole for passing the fastening section is arranged on the underside of the positioning section of the scan rod, wherein the underside of the positioning section of the scan rod interacts limitingly with the limiting section along the extension direction of the inner cavity, wherein the fastening section is passed through the installation hole for connection with the implant, with the inner cavity passing through the upper end of the positioning section of the scan rod for operation of the first fastening element by the user.

Description

TECHNICAL FIELD

[0001] The present invention relates to the technical field of intraoral implantation, in particular to a scanning rod. STATE OF THE ART

[0002] For edentulous intraoral implants, most current technologies such as traditional impression taking and digital impression machines use ordinary scanning rods. The steps of traditional impression taking technology are cumbersome and time-consuming. In the existing technology of digital impression machines using ordinary scanning rods, the scanning rod generally includes a positioning section, and the positioning section is fixed to the implant by a fastener. The current scanning rod has problems such as a single feature and easy to fall off during the fastener assembly process. When the scanning rod is installed, the positioning section of the scanning rod rotates easily, and the manufacturing process and material are limited, so there are many shortcomings. CONTENT OF THE PRESENT INVENTION

[0003] The purpose of the present application is to provide a scan rod that aims to solve at least one of the problems that arise when most current technologies such as conventional impression taking and digital impression machines are used to scan ordinary scan rods.

[0004] According to an embodiment of the present application, a scanning rod is provided in a first aspect, comprising a positioning section of the scanning rod, wherein the positioning section of the scanning rod is provided with an inner cavity, wherein a first fastening element is arranged in the inner cavity, wherein the first fastening element comprises a limiting section and a fastening section, wherein an installation hole for the fastening section is arranged on the underside of the positioning section of the scanning rod, wherein the underside of the positioning section of the scanning rod interacts with the limiting section along the extension direction of the inner cavity in a limiting manner, wherein the fastening section is passed through the installation hole for connection to the implant,wherein the inner cavity passes through the upper end of the positioning portion of the scanning rod for the operation of the first fastening element by the user.,

[0005] In an alternative embodiment, the positioning section of the scanning rod is provided with a fall-out protection structure to prevent the first fastening element from being released from the inner cavity.

[0006] In an alternative embodiment, it is provided that the fall-out protection structure comprises a circular ring or a plurality of annularly arranged elevations which are arranged on the wall of the inner cavity and protrude inwardly from the wall of the inner cavity, and / or wherein the fall-out protection structure is arranged on the positioning upper section.

[0007] In an alternative embodiment, it is provided that the first fastening element is delimited by the wall of the inner cavity along the extension direction of the inner cavity, or wherein a limiting hole is arranged on the underside of the positioning section of the scan rod for adaptation to the limit of the implant.

[0008] In an alternative embodiment, it is provided that a first prestressing element is arranged between the limiting section and the lower end of the positioning section of the scanning rod, wherein the first prestressing element is encased on the outer wall of the fastening section.

[0009] In an alternative embodiment, it is provided that the first biasing element is limited along the extension direction of the inner cavity between the limiting section and the lower end of the positioning section of the scanning rod.

[0010] In an alternative embodiment, it is provided that the positioning section of the scanning rod comprises a positioning base section and a positioning upper section, wherein the positioning base section is connected to the positioning upper section, or wherein the positioning base portion is integrally formed with the positioning upper portion.

[0011] In an alternative embodiment, it is provided that the positioning base section is connected to the positioning upper section in a split manner, wherein the split connection of the positioning base section to the positioning upper section is formed by a press fit, thread fit or snap fit, and / or, wherein the split connection of the positioning base section to the positioning top section is an irreversible installation connection.

[0012] In an alternative embodiment, it is provided that the scanning rod further comprises a scanning rod marking portion arranged on the upper side of the scanning rod positioning portion and extending laterally outwardly from the scanning rod positioning portion, the scanning rod marking portion having an upper surface, the upper surface being provided with a marking arranged at different heights.

[0013] In an alternative embodiment, it is provided that a plurality of upper surfaces are present, wherein the plurality of upper surfaces are arranged at different heights, or wherein the plurality of upper surfaces are arranged obliquely, and / or, wherein the marking section of the scanning rod has a step structure, wherein the upper surface of the marking section of the scanning rod is formed by the step surface and the step bottom surface, wherein the marking is arranged on the step surface and the step bottom surface, and / or, where the marking includes a marking point.

[0014] The embodiment of the present application has the following advantageous effects compared to the prior art: In the present application, the underside of the positioning portion of the scanning rod cooperates with the limiting portion of the first fastening element in a limiting manner along the extension direction of the internal cavity, thereby providing a novel way of combining the positioning portion of the scanning rod and the first fastening element. The limiting portion of the first fastening element is limited along the extension direction of the internal cavity in the internal cavity, thus preventing the fastening element from falling off during the assembly process. SHORT DESCRIPTION OF THE DRAWING Fig. 1a is a schematic diagram of the exploded structure of a scan wand according to an embodiment of the present application; Fig. 1b is a schematic diagram of the mounting structure of a scan rod according to an embodiment of the present application; Fig. 2a is a front view of a positioning base portion according to an embodiment of the present application; Fig. 2b is a sectional view of a positioning base portion according to an embodiment of the present application; Fig. 3 is a sectional view of a scan wand after assembly according to an embodiment of the present application; Fig. 4a is a schematic representation of a positioning top section according to an embodiment of the present application; Fig. 4b is a top view of a positioning top portion according to an embodiment of the present application; Fig. 5 is a schematic diagram of the structure of a fastener according to an embodiment of the present application; Fig. 6a is a front view of a marking portion of a scanning wand according to an embodiment of the present application; Fig. 6b is a schematic diagram of the structure of a marking portion of a scanning wand according to an embodiment of the present application; Fig. 7 is a plan view of a marking portion of a scanning wand according to an embodiment of the present application.

[0015] Reference numerals: 1-positioning upper portion, 11-fall-out prevention structure, 2-first fixing member, 21-restriction portion, 22-fixing portion, 3-first biasing member, 4-positioning base portion, 401-first inner cavity, 402-second inner cavity, 41-first fixing member receiving cavity, 42-counter shaft position, 43-installation hole, 44-scanning rod installation cavity, 5-scanning rod marking portion, 51-marking body portion, 52-second fixing member, 53-second biasing member, 511-step surface, 512-step bottom surface, 5111, 5121-marker, 6-inner cavity. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application will be explained in further detail below in conjunction with the drawings and embodiments.

[0017] It should be noted that when an element is described as being attached or arranged on another element, it may be directly on the other element or indirectly on 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 is understood that the orientation or positional relationships indicated by the terms length, width, top, bottom, front, back, left, right, vertical, horizontal, upper, lower, inside, outside, and the like are based on the orientation or positional relationships shown in the drawings. It is used merely to facilitate the description of the present application and to simplify the description, not to indicate or imply that the devices or elements referred to have a particular orientation, must be constructed, and operated in a particular orientation. It is therefore not to be construed as a limitation of the present application.

[0019] Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be understood to indicate or imply a relative importance or to imply the number of specified technical features. A feature defined as "first" or "second" may explicitly or implicitly encompass one or more of these features. In the description of the present application, "multiple" means two or more, unless expressly and specifically defined otherwise.

[0020] The present application aims to solve at least one of the problems that arise when most current technologies such as conventional impression taking and digital impression machines are used to scan ordinary scan rods.

[0021] In order to facilitate the understanding of the present application, the embodiment of the present application particularly first provides a basic structure of an intraoral scanning rod. Fig. 1a is a schematic illustration of the exploded structure of a scan rod according to an embodiment of the present application. Fig. 1b is a schematic diagram of the mounting structure of a scan rod according to an embodiment of the present application. Fig. 3 is a sectional view of a scan rod after assembly according to another embodiment of the present application. Furthermore, the scan rod comprises a positioning section of the scan rod, wherein the positioning section of the scan rod comprises a positioning base section 1 and a positioning upper section 4. A positioning section of the scan rod is formed by the positioning base section 1 and the positioning upper section 4. The positioning section of the scan rod is provided with an inner cavity 6, wherein a first fastening element 2 is arranged in the inner cavity 6. The first fastening element 2 is movable in the inner cavity 6 along the extension direction of the inner cavity 6. One end of the first fastening element 2 extends from the underside of the positioning base section 4 and is firmly connected to an implant (not shown in the drawing).wherein the other end of the first fastening element 2 interacts with the underside of the positioning base section 4 in a limiting manner, so that the scanning rod is firmly connected to the implant.

[0022] It should be noted that the other end of the first fastening element 2 interacts constructively with the underside of the positioning base section 4 in a limiting manner, which means that the other end of the first fastening element 2 cannot protrude from the underside of the positioning base section 4, so that the positioning base section 4 is fastened to the implant by the first fastening element 2.

[0023] It is understood that the other end of the first fastening element 2 interacts with the underside of the positioning base section 4 in a delimiting manner. This means, in particular, that the other end of the first fastening element 2 is delimited by the underside of the positioning base section 4 and cannot pass through it, since the upper side of the positioning base section 4 lies above the underside of the positioning base section 4. In some embodiments, the other end of the first fastening element 2 can also be delimited above the upper side of the positioning base section 4. This embodiment is also the case in that the other end of the first fastening element 2 interacts with the underside of the positioning base section 4 in a delimiting manner.Furthermore, it is provided that the inner cavity 6 of the positioning section of the scanning rod can be divided into a first inner cavity 401 of the positioning base section 4 and a second inner cavity 402 of the positioning upper section 1, as shown in . Fig. 2b and Fig. 4a, wherein the first fastening element 2 has a limiting portion 21 and a fastening portion 22, as in Fig. 5, wherein the fastening portion 22 passes through the installation hole 43 and cooperates with the installation of the implant (e.g., in threaded fit), wherein the first internal cavity 401 has an installation hole 43, wherein the limiting portion 21 is limited in the second internal cavity 402, so that the scan rod can be fixed to the implant by the joint action of the limiting portion 21 and the fastening portion 22.

[0024] Fig. 2a and Fig. 2b further explain the internal positional relationship of the first fastening element 2 to the positioning upper section 1 and the positioning base section 4. Fig. 2a is a front view of a positioning base portion according to an embodiment of the present application. Fig. 2b is a sectional view of a positioning base portion according to an embodiment of the present application. The first internal cavity 401 of the present application may specifically include a first fastening element receiving cavity 41, an installation hole 43, and a scanning rod installation cavity 44. The countershaft position 42 of the positioning base portion 4 is mounted to the second internal cavity 402 of the positioning upper portion 1, such that the positioning base portion 4 is mounted to the positioning upper portion 1, and the first internal cavity 401 communicates with the second internal cavity 402 to form the internal cavity 6, as shown in Fig. 2a and Fig. 2b. As can be seen from the drawing, the inner diameter of the receiving cavity 41 of the first fastening element is larger than the inner diameter of the installation hole 43, wherein a stepped structure is formed by the inner cavity wall of the receiving cavity 41 of the first fastening element and the inner cavity wall of the installation hole 43, so that the limiting portion 21 of the first fastening element 2 can be limited by the stepped structure within the receiving cavity 41 of the first fastening element and the second inner cavity 402 of the positioning upper portion 1, whereby the case is achieved by the limiting portion of the first fastening element 2 interacting in a limiting manner with the underside of the positioning base portion 4. Of course, the present application may also include other limiting structures that are not listed here.

[0025] As can be seen in the embodiment of the present application, the first fastening element 2 is delimited by the inner cavity wall along the extension direction of the inner cavity 6, so that the first fastening element 2 is movable in the inner cavity 6, whereby the combination of the positioning section of the scan rod with the implant is achieved by actuating the first fastening element 2. It is understood that the extension direction of the inner cavity 6 in the embodiment of the present application is the direction from top to bottom or from bottom to top in Fig. 1b, ie the vertical direction, which is not repeated in the present application.

[0026] Furthermore, in the embodiment of the present application, the installation cavity 44 of the scan rod is a limiting hole arranged on the underside of the positioning section of the scan rod to interact with the implant in a limiting manner, wherein the inner diameter of the installation cavity 44 of the scan rod is larger than the inner diameter of the installation hole 43, wherein a step structure is formed by the inner cavity wall of the installation cavity 44 of the scan rod and the inner cavity wall of the installation hole 43, so that the implant can be limited by the step structure in the installation cavity 44 of the scan rod.

[0027] In actual use, the positioning base section 4 of the scanning rod must be combined and fixed with the implant so that the scanning rod is attached to the implant for scanning in the oral cavity.

[0028] It should be noted that the positioning section of the scanning rod is columnar and can be cylindrical or hexagonal prismatic.

[0029] As one of the embodiments, it is provided that the positioning section of the scanning rod is provided with a scanning rod marking section, wherein the scanning rod marking section extends laterally outwardly from the positioning section of the scanning rod, wherein the surface of the scanning rod marking section is provided with a marking.

[0030] In the following, innovations of the present invention, which are based on various aspects of the structural design described above, are explained in more detail. 1. Fall protection structure

[0031] The present embodiment provides a scanning rod comprising a positioning section of the scanning rod, wherein the positioning section of the scanning rod is provided with an inner cavity 6, wherein a first fastening element 2 is arranged in the inner cavity 6, wherein the first fastening element 2 comprises a limiting section 21 and a fastening section 22, wherein an installation hole 43 for the passage of the fastening section 22 is arranged on the underside of the positioning section of the scanning rod, wherein the underside of the positioning section of the scanning rod interacts with the limiting section 21 along the extension direction of the inner cavity 6, wherein the fastening section 22 is passed through the installation hole for connection to the implant,wherein the inner cavity 6 passes through the upper end of the positioning portion of the scanning rod for the operation of the first fastening element 2 by the user, wherein the positioning portion of the scanning rod is provided with a fall-out prevention structure 11 to prevent the first fastening element 2 from being released from the inner cavity, to prevent the first fastening element 2 from falling out from the top of the scanning rod, further with reference to , Fig. 1 to Fig. 4b. It should be noted that the inner cavity 6 has an installation hole 43, wherein the extension direction of the inner cavity 6 is the axial direction of the installation hole 43, ie, the installation direction of the first fastening element.

[0032] According to the above-described description of the overall structure of the scanning rod and the connection between the individual components, the positioning section of the scanning rod is provided with an internal cavity 6, wherein the underside of the positioning section of the scanning rod cooperates with the limiting section 21 to limit the extension direction of the internal cavity 6. Subsequently, the first fastening element 2 is fully installed in the internal cavity 6 by means of a fall-out prevention structure 11, thereby preventing the first fastening element from falling out. This also solves the problems of inconvenient carrying and easy loss due to the separation of the first fastening element 2 and the scanning rod.

[0033] It is understood that in the embodiment of the present application, the bottom of the positioning portion of the scanning rod is the bottom of the positioning base portion 4, which is not repeated in the present application.

[0034] In particular, the fall-out prevention structure 11 is arranged in the upper end region of the positioning upper section 1, so that the fall-out prevention structure 11 can prevent the first fastening element 2 from falling out of the positioning upper section.

[0035] For example, the fall-out prevention structure 11 of the present application can be formed by the inner cavity wall of the top side of the inner cavity 6 or the fall-out prevention structure 11 of the present application can be mounted on the inner cavity wall of the top side of the inner cavity 6, so that falling out of the first fastening element 2 is prevented by limiting the first fastening element 2.

[0036] By way of example, the present application provides that the fall-out protection structure comprises a circular ring or a plurality of annularly arranged elevations which are arranged on the wall of the inner cavity and project inwards from the wall of the inner cavity.

[0037] In one possible embodiment, the fall-out prevention structure 11 may be a raised circular ring. The raised circular ring is arranged in the second internal cavity 402 near the top of the positioning upper section 1 to prevent the first fastening element 2 from falling out of the top of the positioning upper section 1.

[0038] In a further possible embodiment, the fall-out prevention structure 11 may also be a plurality of raised points, wherein the respective raised points may be arranged at the same distance for a circumference, which are configured near the top of the second inner cavity 402 of the positioning upper section 1, so that the falling out of the first fastening element 2 from the second inner cavity 402 in the positioning upper section 1 can be effectively prevented.

[0039] For example, in one embodiment of the present application, the fall-out protection structure 11 can also be formed by a diameter reduction of the inner cavity 6, as in Fig. 3. That is, the diameter of the restricting portion 21 of the first fastening member 2 is formed to be larger than the inner diameter of the fall-out prevention structure 11, thereby realizing the fall-out prevention function.

[0040] It can be seen that the fallout of the first fastening element 2 from the second internal cavity 402 in the positioning upper portion 1 can be effectively prevented by the fallout prevention structure 11 of the present application. This avoids the problem of inconvenient handling of the scanning rod during the assembly of the intraoral implant butment due to the fallout of the first fastening element 2. Of course, the configuration of the fallout prevention structure 11 in the embodiment may also be a different structure as long as it has the effect of restricting and preventing fallout, which is not specifically limited here.

[0041] It should be noted that in the embodiment, the restricting portion 21 not only can effectively prevent the first fastening member 2 from falling out from the positioning upper portion 1, but also it is convenient to avoid the fall-out prevention structure 11 to operate (tighten or loosen) the first fastening member 2, which is not repeated in the present application.

[0042] In the anti-fallout structure of the intraoral scanning rod according to the present embodiment, the upper end of the positioning upper portion 1 of the scanning rod cooperates with the limiting portion 21 to limit the extension direction of the inner cavity 6. With the combination of the positioning upper portion 1 and the positioning base portion 4, the first fastening element 2 can be completely enclosed within the inner cavity 6, so that the first fastening element 2 is further prevented from falling out of the inner cavity 6 by the anti-fallout structure 11. This improves the problem of inconvenient handling of the scanning rod during the assembly of the intraoral implant butment due to the first fastening element 2 falling out. 2. Pre-stressed anti-rotation structure

[0043] To prevent the scan rod from rotating during the assembly process, the present embodiment provides a preloaded anti-rotation structure for the scan rod. In particular, the present application provides that the positioning section of the scan rod is provided with an internal cavity 6, wherein a first fastening element 2 is arranged in the internal cavity 6. The first fastening element 2 comprises a limiting section 21 and a fastening section 22. An installation hole 43 for the fastening section 22 is arranged on the underside of the positioning section of the scan rod. The underside of the positioning section of the scan rod interacts with the limiting section 21 along the extension direction of the internal cavity 6, wherein the fastening section 22 is passed through the installation hole for connection to the implant.wherein the inner cavity 6 passes through the underside of the positioning section of the scanning rod for the operation of the first fastening element 2 by the user, wherein a first biasing element 3 is arranged between the limiting section 21 and the underside of the positioning section of the scanning rod, wherein the first biasing element 3 is encased on the outer wall of the fastening section 22, further with reference to , Fig. 1a to Fig. 5.

[0044] Specifically, during the installation of the scan rod, the first fastening element 2 is installed for attachment to the implant. The first fastening element 2 is mounted to the implant by spiral rotation (both are threadedly engaged). The presence of the first preload element 3 provides rotational buffering, preventing rotation of the scan rod.

[0045] Furthermore, it is provided that the first fastening element 2 is installed by means of a first prestressing element 3 within an installation hole 43 of the positioning base section 4, wherein the first fastening element 2 passes through the underside of the positioning base section 4 through the first inner cavity 401 and is combined and fastened with the implant, as in Fig. 2b shown.

[0046] In the present embodiment, the first prestressing element 3 can be formed as an integrally connected annular structure. In one possible embodiment, the first prestressing element 3 can be a spacer or another open or closed annular intermediate piece, which is not particularly limited here.

[0047] It is understood that the configuration of the first biasing element 3 according to the present application can cooperate with the above-described anti-fall-out structure to jointly form a scanning rod structure, or the scanning rod structures can be formed independently based on the present concept, which is not limited here. Rotation of the scanning rod during the assembly process can be prevented by the preloaded anti-rotation structure according to the present application. 3. Shared installation structure

[0048] To solve the problem of the limited manufacturing process and material of the current scanning rod, as well as the requirement for the built-in first fixing element, the present embodiment provides a split scanning rod. The positioning base section 4 and the positioning upper section 1 of the scanning rod are arranged in a split configuration in the present embodiment.

[0049] In this way, the positioning base section 4 and the positioning upper section 1 in the present embodiment can be made of different materials due to the split arrangement. It can be adapted to different oral environments and the spatial position of the implant rod to best meet the requirements of the scanning scene.

[0050] Furthermore, the positioning base portion 4 and the positioning upper portion 1 are installed separately to facilitate the installation of the first fastening element 2 into the inner cavity 6, so that the first fastening element 2 can be confined within the inner cavity 6 through the cooperation of the fall-out prevention structure 11. As a result, the first fastening element 2 cannot be removed from the inner cavity 6 during assembly and use.

[0051] Specifically, a black surface treatment may be used for the positioning upper portion 1, and an aluminum alloy material may be selected to be suitable for the formation of marking points; a stainless steel material may be selected for the positioning base portion 4, the hardness of which is higher than that of the positioning upper portion 1 to be suitable for installation and fixation with the implant; and a metal material with fatigue resistance properties may be used for the first fixing member 2. Furthermore, the positioning upper portion 1 and the positioning base portion 4 can be manufactured by different methods for split connection and installation, so the manufacturing process is not limited.The selection range of methods and materials for the positioning upper section 1 and the positioning base section 4 is expanded, so that problems in current one-piece molding solutions are solved, such as difficulty in forming identification points under the premise of ensuring hardness or no hardness guarantee under the premise of ensuring the formation of identification points.

[0052] In particular, in the embodiment of the present application, it is provided that the split connection of the positioning base section 4 with the positioning upper section 1 is formed by press fitting, thread fitting or snap fitting.

[0053] For example, a press fit is achieved by limiting the size of the joint diameter. Similarly, internal and external threads may be formed on the corresponding surfaces of the positioning base portion 4 and the positioning upper portion 1 to form a threaded fit. Therefore, the split joint of the present application can be structurally represented so that the split joint and the one-piece joint can be structurally distinguished.

[0054] It is understood that the above-described split connection of the present application may be a reversible connection, i.e., a detachable connection and reconnection. In further alternative embodiments of the present application, it is contemplated that the split connection of the positioning base portion to the positioning top portion may also be an irreversible installation connection, i.e., non-detachable after connection, which is not limited in the present application. In the present application, an irreversible installation is preferred to ensure the rigid body state of the scanning rod and to ensure stability. 4. Identification section of the scanning rod

[0055] To solve the problem that the features of the scan bar are single in conventional scan bar technology, the present embodiment provides a scan bar structure. The scan bar according to the embodiment of the present application further comprises a scan bar marking portion 5, wherein the scan bar marking portion 5 is arranged at the scanning bar positioning portion and extends laterally outward from the scanning bar positioning portion, the scanning bar marking portion 5 having an upper surface, the upper surface being provided with markings arranged at different heights.

[0056] In the present embodiment, marks are arranged at different heights on the upper surface of the marking section 5 of the scanning rod to establish spatial marking points, so that the positioning section of the scanning rod can be positioned by three-dimensional stereoscopy to increase the spatial distribution dimension of the marks and improve the identification and positioning accuracy of the position of the marks after scanning. Moreover, the marks at different heights can be the same or different, so that the types of marks can be increased, thereby further improving the positioning accuracy. The marks are distributed on the upper surface to facilitate scanning by the scanner, thereby reducing the adjustment of the scanning angle of the scanner.

[0057] In the embodiment of the present application, the marking section 5 of the scanning rod is step-shaped, with reference to Fig. 6a, Fig. 6b and Fig. 7. In this way, two surfaces of different heights are formed by the step surface 511 and the step bottom surface 512. The markings are arranged on two surfaces of different heights, so that the markings have different heights.

[0058] Since in the present embodiment, markers of different heights can be formed, three-dimensionally distributed marker points can be obtained by scanning the upper surface during scanner scanning. That is, for scanning a single surface, spatial marker points can be scanned in a three-dimensional distribution. It is not necessary to adjust the scanning angle of the scanner. In the present application, the marker points are distributed three-dimensionally to improve scanning accuracy. At the same time, the accuracy of the collected data can be better constrained by distributing marker points in different dimensions.

[0059] Furthermore, in the embodiment of the present application, the marking may be a marking point or a coding point or another geometric shape, etc., which is not limited in the present application.

[0060] In the embodiment of the present application, the marking 5111 is arranged on the step surface 511 and the marking 5121 is arranged on the step bottom surface 512, as shown in Fig. 7, wherein the marking may be a characteristic point or a characteristic shape such as a circle, a triangle, etc., wherein one or more markings may be present, which is not limited in the present application.

[0061] In an embodiment not shown in the drawing, the marking section 5 of the scanning rod is formed as a polyhedron, and in one possible embodiment as a hexagon, with each face of the polyhedron not lying in the same plane, so that the marking section 5 of the scanning rod can have multiple upper surfaces of different heights, with the marking formed on each upper surface. Different faces can be used to create spatial marking points, which is advantageous for facilitating the creation of spatial marking points and improving the accuracy of the spatial positioning of the positioning section of the scanning rod.

[0062] Furthermore, in other embodiments, the upper surface of the marking portion 5 of the scanning rod in the present application may be an inclined surface so that marks of different heights are formed on the inclined surface.

[0063] In other embodiments, the upper surface of the marking portion 5 of the scanning rod in the present application may be a curved surface such that markings of different heights are formed on the curved surface, wherein the curved surface is preferably a curved surface with a smooth change in curvature.

[0064] Furthermore, in the embodiment of the present application, the shape of the marking on the marking portion 5 of the scanning rod of each scanning rod may be the same or different.

[0065] In the preferred embodiment, it is provided that the marking section 5 of the scanning rod comprises a marking body section 51 and a second fastening element 52, wherein the marking body section 51 is connected to the positioning upper section 1 by a second fastening element 52, wherein the second fastening element 52 interacts in a limiting manner with an end of the marking body section 51 in the vicinity of the positioning upper section 1, wherein the marking is arranged on the surface of the marking body section 51, further with reference to Fig. 1a.

[0066] In an alternative embodiment, the marking section 5 of the scanning rod has a third inner cavity, wherein the second fastening element 52 extends through the third inner cavity and interacts with the positioning upper section 1 in a limiting manner.

[0067] In addition, the scanning rod according to the application is provided with a second biasing element 53 which corresponds to the second fastening element 52, as shown in Fig.1a, wherein the marking section 5 of the scanning rod has a second biasing element 53, wherein the second biasing element 53 is encased on the outer wall of the second fastening element 52 and interacts in a limiting manner with an end of the second fastening element 52 remote from the positioning upper section 1. This means that the marking section 5 of the scanning rod is fastened to the positioning section of the scanning rod by the second biasing element 53 by means of the second fastening element 52. It should be noted that in the preferred embodiment, the manner of limiting the second fastening element 52 with the second biasing element 53 and the manner of limiting the first fastening element 2 with the first biasing element 3 is the same in the present embodiment.The arrangement of the second prestressing element 53 thus also acts against rotation when the marking body section 51 is combined with the positioning upper section 1 by means of the second fastening element 52.

[0068] For the marking body portion 51, a structure similar to the positioning portion of the scanning rod may be adopted, that is, it may be divided or integrally formed, which is not limited in the present application.

[0069] Similarly, the marking body portion 51 may also include a base portion of the marking body portion and a top portion of the marking body portion, such that the second fastening element 52 is installed on the underside of the base portion of the marking body portion. It is combined and fixed with the side wall of the positioning top portion, thereby combining and fixing the marking portion of the scanning rod with the positioning top portion.

[0070] It is understood that the connection between the marking section 5 of the scanning rod and the positioning section of the scanning rod can also be installed separately or integrally formed, which is not limited in the present application.

[0071] In the present application, the marking portion 5 of the scanning rod is preferably integral with the positioning upper portion 1, integrally deformable with the same material, wherein the marking may also be distributed on the surface of the positioning upper portion 1, wherein the markings are distributed on each surface of the marking portion 5 of the scanning rod and on each surface of the positioning upper portion 1.

[0072] In the embodiment of the present application, the scanning rod marking portion 5 can be further formed into a split structure in the present application. The scanning rod positioning portion and the scanning rod marking portion 5 are divided into two parts. The scanning rod marking portion 5 is fixed to the scanning rod positioning portion by a second fixing member 52 along the extension direction of the third internal cavity, i.e., the lateral direction in the drawing. This facilitates the combined use of the scanning rod positioning portion and the scanning rod marking portion 5 of different lengths and shapes. It can be adapted to different oral environments and the spatial position of the implant rod to meet the various requirements of the scanning scene.

[0073] Furthermore, in an alternative embodiment, the marking section 5 of the scanning rod is made of an aluminum alloy material with a black surface. Other components are made of materials with fatigue-resistant properties. The marking section 5 of the scanning rod and the positioning section of the scanning rod are assembled separately by the second fastening element, allowing the use of different materials. Therefore, it is not necessary to use the same material as the marking section 5 of the scanning rod for the positioning section of the scanning rod. For more adaptable scenarios, a stronger stainless steel material can be used.

[0074] Based on the same innovative idea, the split connection of the base section of the marking body section and the upper section of the marking body section can be formed by press fitting, thread fitting or snap fitting, which will not be discussed in detail here.

[0075] Furthermore, in the embodiment of the present application, a fall-out prevention structure may also be configured in the marking portion of the scanning rod.

[0076] Its structural details are like the fall-out prevention structure in the positioning section of the scanning rod in the embodiment of the present application, which is not limited in the present application.

[0077] It should be noted that each of the above-mentioned four core concepts of the present application can be selectively combined with other core concepts, or the scanning rod can be configured separately. For example, the fall-out prevention structure can be incorporated into the split installation structure and combined with the split installation structure to form a scanning rod structure, or a scanning rod structure can be formed independently, which is not limited in the present application.

[0078] In the most preferred embodiment, the four ideas of the present application described above are combined in a scan bar structure, so that all technical problems of the prior art can be solved with this scan bar, which is not repeated in the present application.

[0079] It will be clear to those skilled in the art that, for the convenience and conciseness of the description, only the above-described division of the individual functional units and modules is illustrated by way of example. In practical applications, the above-described functions can be assigned to different functional units and modules for completion as needed. That is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. The individual functional units and modules in the embodiments can be integrated into a processing unit, or the individual units can physically exist alone, or two or more units can be integrated into one unit.Furthermore, the specific names of each functional unit and module are for convenience only and do not limit the scope of the present application. The specific working process of the units and modules in the system described above can be referred to the corresponding process in the embodiment of the method described above, which will not be repeated in the present application.

[0080] In the embodiments described above, the description of each embodiment is emphasized differently. Parts not described or documented in detail in one embodiment can be referred to the corresponding description of other embodiments.

[0081] The units represented as separate components may or may not be physically separate. The components represented as units may or may not be physical units, meaning they may be located at one location or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in the present embodiment.

Claims

[1] Scanning rod comprising a positioning section of the scanning rod, characterized characterized by the positioning section of the scanning rod is provided with an inner cavity, wherein a first fastening element is arranged in the inner cavity, wherein the first fastening element comprises a limiting section and a fastening section, wherein an installation hole for passing through the fastening section is arranged on the underside of the positioning section of the scanning rod, wherein the underside of the positioning section of the scanning rod interacts with the limiting section along the extension direction of the inner cavity in a limiting manner, wherein the fastening portion is passed through the installation hole for connection to the implant, wherein the inner cavity passes through the upper end of the positioning portion of the scanning rod for operation of the first fastening element by the user. [2] Scanning rod according to claim 1, characterized by that the positioning portion of the scanning rod is provided with a fall-out prevention structure to prevent the first fastening element from being released from the inner cavity. [3] Scanning rod according to claim 1 or 2, characterized by that the fall-out protection structure comprises a circular ring or a plurality of annularly arranged elevations which are arranged on the wall of the inner cavity and project inwards from the wall of the inner cavity. [4] Scanning rod according to claim 3, characterized bythat the first fastening element is limited by the wall of the inner cavity along the extension direction of the inner cavity, or wherein a limiting hole is arranged on the underside of the positioning section of the scanning rod for adaptation to the limit of the implant. [5] Scanning rod according to one of claims 1 to 4, characterized by that a first biasing element is arranged between the limiting section and the lower end of the positioning section of the scanning rod, wherein the first biasing element is encased on the outer wall of the fastening section. [6] Scanning rod according to claim 5, characterized by that the first biasing element is limited along the extension direction of the inner cavity between the limiting portion and the lower end of the positioning portion of the scanning rod. [7] Scanning rod according to one of claims 1 to 6, characterized bythat the positioning portion of the scanning rod comprises a positioning base portion and a positioning upper portion, wherein the positioning base portion is part-connected to the positioning upper portion, or wherein the positioning base portion is integrally formed with the positioning upper portion. [8] Scanning rod according to claim 7, characterized by that the positioning base section is splitly connected to the positioning upper section, wherein the split connection of the positioning base section to the positioning upper section is formed by press fitting, thread fitting or snap fitting, and / or wherein the split connection of the positioning base section to the positioning upper section is an irreversible installation connection. [9] Scanning rod according to one of claims 1 to 8, characterized byin that the scanning rod further comprises a scanning rod marking portion arranged on top of the scanning rod positioning portion and extending laterally outwardly from the scanning rod positioning portion, the scanning rod marking portion having an upper surface, the upper surface being provided with markings arranged at different heights. [10] Scanning rod according to claim 1, characterized by that there are several upper surfaces, wherein the several upper surfaces are arranged at different heights, or wherein the several upper surfaces are arranged obliquely, and / or, wherein the marking section of the scanning rod has a step structure, wherein the upper surface of the marking section of the scanning rod is formed by the step surface and the step bottom surface, wherein the marking is arranged on the step surface and the step bottom surface, and / or, where the marking includes a marking point.

Images