Scanning rod

Abstract

The utility model provides a scanning rod which comprises a scanning rod positioning part, the scanning rod positioning part is provided with an inner cavity, a first fastener is arranged in the inner cavity and comprises a limiting part and a fastening part, the bottom of the scanning rod positioning part is provided with a mounting hole for the fastening part to penetrate through, and the bottom of the scanning rod positioning part is in limiting fit with the limiting part in the extending direction of the inner cavity. The fastening part penetrates through the mounting hole to be connected with an implant, and the inner cavity penetrates through the top end of the scanning rod positioning part so that a user can operate the first fastening part; the problems that an existing scanning rod is single in feature, a fastener is prone to falling off in the assembling process, a positioning part of the scanning rod is prone to following rotation when the scanning rod is installed, and the manufacturing technology and materials are limited are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of intraoral implantation, in particular to a scanning rod. Background Art

[0002] For intraoral implants in edentulous jaws, most currently used are traditional impression-taking technology and digital impression scanning technology using ordinary scanning rods. The traditional impression-taking technology is cumbersome and time-consuming, while the existing digital impression scanning technology using ordinary scanning rods generally includes a positioning part, which is fixed to the implant by fasteners. The current scanning rods have many shortcomings, such as single features, easy falling off during fastener assembly, easy rotation of the scanning rod positioning part during installation, and limited manufacturing process and materials. Utility Model Content

[0003] The purpose of the present application is to provide a scanning rod, which aims to solve at least one problem that occurs in most current conventional impression taking technologies and digital impression scanner scanning technologies.

[0004] A first embodiment of the present application provides a scanning rod, comprising:

[0005] The scanning rod positioning part is provided with an inner cavity, and a first fastener is provided in the inner cavity. The first fastener includes a limiting part and a fastening part. The bottom of the scanning rod positioning part is provided with a mounting hole for the fastening part to pass through. The bottom of the scanning rod positioning part and the limiting part are limitedly matched along the extension direction of the inner cavity. The fastening part passes through the mounting hole for connection with the implant. The inner cavity passes through the top end of the scanning rod positioning part for the user to operate the first fastener. The scanning rod positioning part is provided with an anti-falling structure for preventing the first fastener from escaping from the inner cavity.

[0006] In an optional embodiment of the first aspect, the anti-falling structure includes a circular ring or a plurality of protrusions arranged in a ring shape, which is provided on the inner cavity wall and protrudes inward from the inner cavity wall.

[0007] In an optional embodiment of the first aspect, the scanning rod positioning portion includes a positioning base and a positioning top, and the positioning base and the positioning top are integrally formed, or the positioning base and the positioning top are separately connected.

[0008] In an optional embodiment of the first aspect, the anti-falling structure is provided at the positioning top.

[0009] In an optional embodiment of the first aspect, a first pre-tightening member is provided between the limiting portion and the bottom of the scanning rod positioning portion, and the first pre-tightening member is sleeved on the outer wall of the fastening portion.

[0010] In an optional embodiment of the first aspect, the first pre-tightening member is limited along the extension direction of the inner cavity between the limiting portion and the bottom of the scanning rod positioning portion.

[0011] In an optional embodiment of the first aspect, the scanning rod further includes a scanning rod identification portion, wherein the scanning rod identification portion is provided on the scanning rod positioning portion and extends laterally outward from the scanning rod positioning portion;

[0012] The scanning rod identification portion has an upper surface, and the upper surface is provided with identifications located at different heights.

[0013] In an optional embodiment of the first aspect, the scanning rod identification portion is provided at the positioning top.

[0014] In an optional embodiment of the first aspect, the scanning rod identification portion includes an identification body portion and a second fastener, and the identification body portion is fixed to the scanning rod positioning portion via the second fastener.

[0015] In an optional embodiment of the first aspect, the inner cavity wall limits the first fastener along the extension direction of the inner cavity; or, the bottom of the scanning rod positioning part is provided with a limiting hole for cooperating with the implant.

[0016] A second embodiment of the present application provides a scanning rod, comprising:

[0017] The scanning rod positioning part is provided with an inner cavity, and a first fastener is provided in the inner cavity. The first fastener includes a limiting part and a fastening part. The bottom of the scanning rod positioning part is provided with a mounting hole for the fastening part to pass through. The bottom of the scanning rod positioning part and the limiting part are limitedly matched along the extension direction of the inner cavity. The fastening part passes through the mounting hole for connection with the implant. The inner cavity passes through the top end of the scanning rod positioning part for the user to operate the first fastener. A first pre-tightening part is provided between the limiting part and the bottom end of the scanning rod positioning part. The first pre-tightening part is sleeved on the outer wall of the fastening part.

[0018] In an optional embodiment of the second aspect, the first pre-tightening member is limited along the extension direction of the inner cavity between the limiting portion and the bottom end of the scanning rod positioning portion.

[0019] In an optional embodiment of the second aspect, the scanning rod positioning portion includes a positioning base and a positioning top, and the positioning base and the positioning top are integrally formed, or the positioning base and the positioning top are separately connected.

[0020] In an optional embodiment of the second aspect, the scanning rod positioning portion includes a positioning base and a positioning top, the positioning base is separately connected to the positioning top, and the separate connection between the positioning base and the positioning top is formed by interference fit, thread fit or snap fit; and / or,

[0021] The separate connection between the positioning base and the positioning top is an irreversible installation connection.

[0022] In an optional embodiment of the second aspect, the scanning rod further includes a scanning rod identification portion, wherein the scanning rod identification portion is provided on the scanning rod positioning portion and extends laterally outward from the scanning rod positioning portion;

[0023] The scanning rod identification portion has an upper surface, and the upper surface is provided with identifications located at different heights.

[0024] In an optional embodiment of the second aspect, the scanning rod positioning portion includes a positioning base and a positioning top, the positioning base is separately connected to the positioning top, and the scanning rod identification portion is provided on the positioning top.

[0025] In an optional embodiment of the second aspect, the scanning rod identification portion includes an identification body portion and a second fastener, and the identification body portion is fixed to the scanning rod positioning portion via the second fastener.

[0026] In an optional embodiment of the second aspect, the scanning rod positioning portion is provided with an anti-falling structure to prevent the first fastener from detaching from the inner cavity.

[0027] In an optional embodiment of the second aspect, the anti-falling structure includes a circular ring or a plurality of protrusions arranged in a ring shape, which is provided on the inner cavity wall and protrudes inward from the inner cavity wall.

[0028] In an optional embodiment of the second aspect, the scanning rod positioning portion includes a positioning base and a positioning top, and the anti-falling structure is provided at the positioning top.

[0029] The third aspect of the present application provides a scanning rod, comprising: a scanning rod positioning portion, the scanning rod positioning portion is provided with an inner cavity, a first fastener is provided in the inner cavity, the first fastener comprises a limiting portion and a fastening portion, the bottom of the scanning rod positioning portion is provided with a mounting hole for the fastening portion to pass through, the bottom of the scanning rod positioning portion and the limiting portion are limitedly matched along the extension direction of the inner cavity, the fastening portion passes through the mounting hole for connection with the implant, the inner cavity passes through the top end of the scanning rod positioning portion for the user to operate the first fastener, the scanning rod positioning portion comprises a positioning base and a positioning top, the positioning base and the positioning top are separately connected.

[0030] In an optional embodiment of the third aspect, the separate connection between the positioning base and the positioning top is formed by interference fit, thread fit or snap fit.

[0031] In an optional embodiment of the third aspect, the separate connection between the positioning base and the positioning top is an irreversible installation connection.

[0032] In an optional embodiment of the third aspect, the scanning rod further includes a scanning rod identification portion, the scanning rod identification portion being disposed on the scanning rod positioning portion and extending laterally outward from the scanning rod positioning portion;

[0033] The scanning rod identification portion has an upper surface, and the upper surface is provided with identifications located at different heights.

[0034] In an optional embodiment of the third aspect, the scanning rod identification portion is provided at the positioning top.

[0035] In an optional embodiment of the third aspect, the scanning rod identification portion includes an identification body portion and a second fastener, and the identification body portion is fixed to the scanning rod positioning portion via the second fastener.

[0036] In an optional embodiment of the third aspect, a first pre-tightening member is provided between the limiting portion and the bottom of the scanning rod positioning portion, and the first pre-tightening member is sleeved on the outer wall of the fastening portion.

[0037] In an optional embodiment of the third aspect, the first pre-tightening member is limited along the extension direction of the inner cavity between the limiting portion and the bottom of the scanning rod positioning portion.

[0038] In an optional embodiment of the third aspect, the scanning rod positioning portion is provided with an anti-falling structure to prevent the first fastener from detaching from the inner cavity.

[0039] In an optional embodiment of the third aspect, the anti-falling structure includes a circular ring or a plurality of protrusions arranged in a ring shape, which is provided on the inner cavity wall and protrudes inward from the inner cavity wall.

[0040] A fourth embodiment of the present application provides a scanning rod, comprising:

[0041] A scanning rod positioning portion and a scanning rod identification portion, wherein the scanning rod positioning portion is used to connect with the implant, the scanning rod identification portion is arranged on the scanning rod positioning portion and extends laterally outward from the scanning rod positioning portion, and the scanning rod identification portion has an upper surface, and the upper surface is provided with identifications located at different heights.

[0042] In an optional embodiment of the fourth aspect, the upper surface includes multiple upper surfaces, and the multiple upper surfaces are at different heights, or the upper surface is inclined.

[0043] In an optional embodiment of the fourth aspect, the scanning rod identification portion is a step structure, wherein the top surface of the step and the bottom surface of the step form the upper surface of the scanning rod identification portion, and the identification is provided on the top surface of the step and the bottom surface of the step.

[0044] In an optional embodiment of the fourth aspect, the upper surface of the scanning rod identification portion is a curved surface.

[0045] In an optional embodiment of the fourth aspect, the identification includes an identification point.

[0046] In an optional embodiment of the fourth aspect, the scanning rod identification portion includes an identification body portion and a second fastener, and the identification body portion is fixed to the scanning rod positioning portion via the second fastener.

[0047] In an optional embodiment of the fourth aspect, the scanning rod positioning portion is provided with an inner cavity, a first fastener is provided in the inner cavity, the first fastener includes a limiting portion and a fastening portion, a mounting hole for the fastening portion to pass through is provided at the bottom of the scanning rod positioning portion, the bottom of the scanning rod positioning portion and the limiting portion are limitedly engaged along an extension direction of the inner cavity, the fastening portion passes through the mounting hole for connection to the implant, and the inner cavity passes through the top end of the scanning rod positioning portion for a user to operate the first fastener;

[0048] A first pre-tightening member is provided between the limiting portion and the bottom of the scanning rod positioning portion, and the first pre-tightening member is sleeved on the outer wall of the fastening portion.

[0049] In an optional embodiment of the fourth aspect, the scanning rod positioning portion is provided with an anti-falling structure for preventing the first fastener from falling out of the inner cavity.

[0050] In an optional embodiment of the fourth aspect, a first pre-tightening member is provided between the limiting portion and the bottom of the scanning rod positioning portion, and the first pre-tightening member is sleeved on the outer wall of the fastening portion.

[0051] In an optional embodiment of the fourth aspect, the scanning rod positioning portion includes a positioning top and a positioning base, and the positioning top and the positioning base are installed separately.

[0052] The beneficial effect of the first aspect embodiment of the present application compared with the prior art is: by limiting the bottom of the scanning rod positioning part with the limiting part of the first fastener along the extension direction of the inner cavity, and configuring an anti-falling structure for preventing the first fastener from escaping from the inner cavity, the first fastener can be prevented from escaping from the inner cavity of the scanning rod positioning part, thereby improving operational stability.

[0053] The beneficial effect of the second aspect embodiment of the present application compared with the prior art is: by limiting the bottom end of the scanning rod positioning part with the limiting part of the first fastener along the extension direction of the inner cavity, and providing a first pre-tightening part between the limiting part and the bottom end of the scanning rod positioning part, the first pre-tightening part is sleeved on the outer wall of the fastening part, and through the relative friction between the pre-tightening part and the fixing part and the relative friction between the pre-tightening part and the bottom end of the scanning rod positioning part, it is beneficial to reduce the rotation of the scanning rod during the assembly process inside the oral cavity, prevent the scanning rod positioning base and the positioning top from rotating and loosening during installation or operation, and improve stability.

[0054] The beneficial effect of the third aspect embodiment of the present application compared with the prior art is: by configuring a separately connected positioning base and a positioning top, and configuring a first fastener in the inner cavity, each component is configured independently, and each component can be made of different materials and processes, so as to better match the scene requirements.

[0055] The beneficial effect of the fourth aspect of the embodiment of the present application compared with the prior art is: by configuring the scanning rod identification part, the upper surface of the scanning rod identification part is provided with identifications located at different heights, so that on the one hand, the spatial features at different heights are identified, and the spatial hierarchy and richness of the identification features are improved, thereby enriching the feature dimension, improving the recognition accuracy, and solving the current problem of single scanning rod features and low recognition accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1a A schematic diagram of the exploded structure of a scanning rod provided in an embodiment of the present application.

[0057] Figure 1b A schematic diagram of the assembly structure of a scanning rod provided in an embodiment of the present application.

[0058] Figure 2a A front view of a positioning base provided in an embodiment of the present application.

[0059] Figure 2b A cross-sectional view of a positioning base provided in an embodiment of the present application.

[0060] Figure 3 This is a cross-sectional view of the scanning rod after assembly provided in an embodiment of the present application.

[0061] Figure 4a A schematic diagram of a top positioning provided in an embodiment of the present application.

[0062] Figure 4b A top view of a positioning device provided in an embodiment of the present application.

[0063] Figure 5 A schematic diagram of a fastener structure provided in an embodiment of the present application.

[0064] Figure 6a A front view of a scanning rod identification portion provided in an embodiment of the present application.

[0065] Figure 6b A schematic diagram of the structure of a scanning rod identification portion provided in an embodiment of the present application.

[0066] Figure 7 A top view of a scanning rod identification portion provided in an embodiment of the present application.

[0067] Figure markings: 1-positioning top, 11-anti-falling structure, 2-first fastener, 21-limiting part, 22-fastening part, 3-first pre-tightening part, 4-positioning base, 401-first inner cavity, 402-second inner cavity, 41-first fastener accommodating cavity, 42-matching axis position, 43-mounting hole, 44-scanning rod mounting cavity, 5-scanning rod identification part, 51-identification main body, 52-second fastener, 53-second pre-tightening part, 511-step top surface, 512-step bottom surface, 5111, 5121-identification, 6-inner cavity. DETAILED DESCRIPTION

[0068] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0069] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0070] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0072] The present application aims to solve at least one problem that occurs in most current technologies using traditional impression taking techniques and digital impression scanners to scan ordinary scanning rods.

[0073] Specifically, in order to facilitate understanding of the present application, the present application embodiment first provides a basic structure of an intraoral scanning rod. Figure 1a FIG1 shows a schematic diagram of an exploded structure of a scanning rod provided by one embodiment of the present application. Figure 1bFIG1 shows a schematic diagram of an assembly structure of a scanning rod provided by one embodiment of the present application. Figure 3 This is a cross-sectional view of another embodiment of a scanning rod after assembly. The scanning rod includes a scanning rod positioning portion, which includes a positioning top 1 and a positioning base 4. The positioning top 1 and the positioning base 4 form the scanning rod positioning portion, wherein the scanning rod positioning portion has an inner cavity 6, and a first fastener 2 is provided in the inner cavity 6. The first fastener 2 can move in the inner cavity 6 along the extension direction of the inner cavity 6. One end of the first fastener 2 extends from the bottom of the positioning base 4 and is connected and fixed to the implant (not shown in the figure). The other end of the first fastener 2 cooperates with the bottom limit of the positioning base 4 to connect and fix the scanning rod to the implant.

[0074] It should be noted that the other end of the first fastener 2 is structurally limited with the bottom of the positioning base 4 so that the other end of the first fastener 2 cannot pass through the bottom of the positioning base 4, thereby fixing the positioning base 4 on the implant through the first fastener 2.

[0075] It should be understood that the other end of the first fastener 2 of the present application is limited in cooperation with the bottom of the positioning base 4, which specifically means that the other end of the first fastener 2 is limited to the bottom of the positioning base 4 and cannot pass through the bottom. Since the top of the positioning base 4 is above the bottom of the positioning base 4, in some embodiments, the other end of the first fastener 2 can also be limited above the top of the positioning base 4. This embodiment also belongs to "the other end of the first fastener 2 is limited in cooperation with the bottom of the positioning base 4". Figure 2b and Figure 4b As shown, the inner cavity 6 of the scanning rod positioning portion can be divided into a first inner cavity 401 for positioning the base 4 and a second inner cavity 402 for positioning the top 1. Figure 5 As shown, the first fastener 2 includes a limiting portion 21 and a fastening portion 22. The fastening portion 22 passes through the mounting hole 43 and is mounted in conjunction with the implant (e.g., threaded). The first inner cavity 401 includes the mounting hole 43, and the limiting portion 21 is limited in the second inner cavity 402. In this way, the scanning rod can be fixed on the implant through the joint action of the limiting portion 21 and the fastening portion 22.

[0076] Figure 2a and Figure 2b The internal positional relationship between the first fastener 2 and the positioning top 1 and the positioning base 4 will be further described. Figure 2a A front view of a positioning base provided in an embodiment of the present application, Figure 2b A cross-sectional view of a positioning base provided in an embodiment of the present application, such as Figure 2a and Figure 2bThe first inner cavity 401 of the present application may specifically include a first fastener accommodating cavity 41, a mounting hole 43, and a scanning rod mounting cavity 44. The mating axis 42 of the positioning base 4 is assembled in the second inner cavity 402 of the positioning top 1, so that the positioning base 4 and the positioning top 1 are assembled and the first inner cavity 401 and the second inner cavity 402 are connected to form an inner cavity 6. As can be seen from the figure, the inner diameter of the first fastener accommodating cavity 41 is larger than the inner diameter of the mounting hole 43. The inner cavity wall of the first fastener accommodating cavity 41 and the inner cavity wall of the mounting hole 43 form a step structure, so that the limiting portion 21 of the first fastener 2 can be limited by the step structure in the first fastener accommodating cavity 41 and the second cavity 402 of the positioning top 1, thereby realizing "the limiting portion of the first fastener 2 and the bottom limiting cooperation of the positioning base 4". Of course, the present application may also include other limiting structures, which are not enumerated here.

[0077] It can be seen that in the embodiment of the present application, the wall of the inner cavity 6 limits the first fastener 2 along the extension direction of the inner cavity 6, so that the first fastener 2 can move in the inner cavity 6, and the scanning rod positioning part is combined with the implant by operating the first fastener 2. It should be understood that the extension direction of the inner cavity 6 in the embodiment of the present application is Figure 1b The top-down or bottom-up direction in the text is the “vertical” direction, which will not be elaborated in this application.

[0078] Furthermore, in an embodiment of the present application, the scanning rod mounting cavity 44 is a limiting hole provided at the bottom of the scanning rod positioning portion for limiting cooperation with the implant. The inner diameter of the scanning rod mounting cavity 44 is larger than the inner diameter of the mounting hole 43. The inner cavity wall of the scanning rod mounting cavity 44 and the inner cavity wall of the mounting hole 43 form a step structure, so that the implant can be limited in the scanning rod mounting cavity 44 by the step structure.

[0079] During specific use, the positioning base 4 of the scanning rod needs to be fixed to the implant, and the scanning rod is fixed on the implant to perform scanning inside the oral cavity.

[0080] It should be noted that the scanning rod positioning portion is columnar, and may be cylindrical or hexagonal.

[0081] As one embodiment, the scanning rod positioning portion is provided with a scanning identification portion, the scanning identification portion extends laterally outward from the scanning positioning portion, and a mark is provided on the surface of the scanning identification portion.

[0082] The following describes in detail the innovations of the present invention in different aspects based on the above structure.

[0083] 1. Anti-fall structure

[0084] To prevent the first fastener 2 from falling off the top of the scanning rod, please continue to refer to Figures 1a to 4bThis embodiment provides a scanning rod, including a scanning rod positioning portion, the scanning rod positioning portion having an inner cavity 6, a first fastener 2 disposed in the inner cavity 6, the first fastener 2 including a limiting portion 21 and a fastening portion 22, a mounting hole 43 for the fastening portion 22 to pass through at the bottom of the scanning rod positioning portion, the bottom of the scanning rod positioning portion and the limiting portion 21 being engaged along the extension direction of the inner cavity 6, the fastening portion 22 passing through the mounting hole for connection to the implant, the inner cavity 6 passing through the top of the scanning rod positioning portion for user operation of the first fastener 2, and the scanning rod positioning portion having an anti-drop structure 11 for preventing the first fastener 2 from detaching from the inner cavity. It should be noted that the inner cavity 6 includes the mounting hole 43, and the extension direction of the inner cavity 6 is the axial direction of the mounting hole 43, which is also the installation direction of the first fastener.

[0085] According to the above description of the overall structure of the scanning rod and the connection between the various components, an inner cavity 6 is provided through the scanning rod positioning portion, and the bottom of the scanning rod positioning portion is limitedly matched with the limiting portion 21 along the extension direction of the inner cavity 6. Then, the first fastener 2 is completely built into the inner cavity 6 through the anti-falling structure 11, thereby preventing the first fastener from falling off, and also solving the problem of inconvenience in carrying and easy loss caused by the separation of the first fastener 2 and the scanning rod.

[0086] It should be understood that in the embodiment of the present application, the bottom of the scanning rod positioning portion is the bottom of the positioning base 4, and this application will not elaborate on this.

[0087] Specifically, the anti-falling structure 11 is provided at the top area of the positioning top 1 , and the anti-falling structure 11 can prevent the first fastener 2 from falling out of the positioning top.

[0088] Illustratively, the anti-falling structure 11 of the present application can be formed by the top inner cavity wall of the inner cavity 6, or the anti-falling structure 11 of the present application can be assembled on the top inner cavity wall of the inner cavity 6, thereby preventing the first fastener 2 from falling out by limiting the first fastener 2.

[0089] Illustratively, the anti-falling structure of the present application includes a circular ring or a plurality of protrusions arranged in a ring shape, which is provided on the inner cavity wall and protrudes inward from the inner cavity wall.

[0090] In a possible implementation, the anti-falling structure 11 may be a raised ring, which is disposed in the second inner cavity 402 near the top of the positioning top 1 to prevent the first fastener 2 from falling out of the top of the positioning top 1 .

[0091] In another possible embodiment, the anti-falling structure 11 can also be a plurality of protrusions, each of which can be arranged at the same distance around a circle and configured at the top of the second inner cavity 402 close to the positioning top 1, which can effectively prevent the first fastener 2 from falling out of the second inner cavity 402 in the positioning top 1.

[0092] For example, Figure 3 As shown, the anti-falling structure 11 in the embodiment of the present application can also be formed by reducing the diameter of the inner cavity 6, that is, by configuring the diameter of the limiting portion 21 of the first fastener 2 to be larger than the inner diameter of the anti-falling structure 11, thereby realizing the anti-falling function.

[0093] It can be seen that the anti-falling structure 11 of the present application can effectively prevent the first fastener 2 from falling out of the second inner cavity 402 in the positioning top 1, and avoid the problem of inconvenience in the assembly operation of the scanning rod implant base in the oral cavity due to the falling out of the first fastener 2. Of course, in this embodiment, the configuration of the anti-falling structure 11 can also be other structures, as long as it has the effect of limiting and preventing falling out, and no specific restrictions are made here.

[0094] It should be noted that in this embodiment, the limiting portion 21 can not only effectively prevent the first fastener 2 from falling out of the positioning top 1, but also facilitates avoiding the anti-falling structure 11 to operate (tighten or loosen) the first fastener 2, which will not be elaborated in this application.

[0095] The anti-falling structure of the intraoral scanning rod provided in this embodiment is configured such that the top end of the scanning rod positioning top 1 is limitedly matched with the limiting portion 21 along the extension direction of the inner cavity 6. When the positioning top 1 and the positioning base 4 are combined, the first fastener 2 can be completely wrapped in the inner cavity 6. The anti-falling structure 11 further prevents the first fastener 2 from falling out of the inner cavity 6, thereby improving the problem of inconvenience in the assembly operation of the scanning rod on the implant base in the oral cavity due to the falling off of the first fastener 2.

[0096] 2. Pre-tightening anti-rotation structure

[0097] In order to prevent the scanning rod from rotating during the assembly process, this embodiment provides a pre-tightening anti-rotation structure for the scanning rod. For details, please continue to combine Figures 1a to 5 The scanning rod positioning part of the present application is provided with an inner cavity 6, and a first fastener 2 is provided in the inner cavity 6. The first fastener 2 includes a limiting portion 21 and a fastening portion 22. The bottom of the scanning rod positioning part is provided with a mounting hole 43 for the fastening portion 22 to pass through. The bottom of the scanning rod positioning part and the limiting portion 21 are limitedly matched along the extension direction of the inner cavity 6. The fastening portion 22 passes through the mounting hole for connection with the implant. The inner cavity 6 passes through the bottom of the scanning rod positioning part. The inner cavity 6 passes through the bottom of the scanning rod positioning part along its extension direction for the user to operate the first fastener 2. A first pre-tightening part 3 is provided between the limiting portion 21 and the bottom of the scanning rod positioning part. The first pre-tightening part 3 is sleeved on the outer wall of the fastening part 22.

[0098] Specifically, when installing the scanning rod, the first fastener 2 is installed to fix it to the implant, and the first fastener 2 is assembled to the implant by spiral rotation (the two are threaded together). At this time, the presence of the first pre-tightening member 3 provides a rotation buffer, which can prevent the scanning rod from rotating.

[0099] like Figure 2b As shown, the first fastener 2 is installed in the mounting hole 43 of the positioning base 4 through the first pre-tightening member 3 , and the first fastener 2 passes through the bottom of the positioning base 4 through the first inner cavity 401 to be fixed to the implant.

[0100] In this embodiment, the first pre-tightening member 3 may be an integrally connected annular structure. In a possible implementation, the first pre-tightening member 3 may be a gasket, or other open or unopened annular intermediate member, which is not specifically limited here.

[0101] It should be understood that the configuration of the first pre-tightening member 3 of the present application can cooperate with the above-mentioned anti-falling structure to form a scanning rod structure, or independently form a scanning rod structure based on the present concept. There is no limitation here. The pre-tightening anti-rotation structure of the present application can prevent the scanning rod from rotating during the assembly process.

[0102] 3. Split installation structure

[0103] In order to solve the current problems of limited manufacturing process and materials of the scanning rod and the requirement of built-in first fastener, this embodiment provides a split scanning rod, in which the positioning base 4 and the positioning top 1 of the scanning rod are separately arranged.

[0104] In this way, the positioning base 4 and the positioning top 1 of this embodiment are separately provided and can be formed of different materials, so as to adapt to different oral environments and the spatial position of the implant rod, thereby achieving the best scanning scene requirements.

[0105] In addition, the split installation of the positioning base 4 and the positioning top 1 facilitates the first fastener 2 to be built into the inner cavity 6, so that the first fastener 2 can be limitedly configured in the inner cavity 6 in conjunction with the anti-fall structure 11, and the first fastener 2 cannot fall out of the inner cavity 6 during assembly and use.

[0106] Specifically, the positioning top 1 can be treated with a black surface and can be made of aluminum alloy material, which is suitable for the formation of identification points. The positioning base 4 can be made of stainless steel material. The hardness of the positioning base 4 is higher than that of the positioning top 1, which is suitable for installation and fixation with the implant. The first fastener 2 is made of metal material with anti-fatigue properties. Furthermore, the positioning top 1 and the positioning base 4 that are installed separately can be made by different processes, so that the manufacturing process is not restricted, which expands the range of choices of processes and materials for the positioning top 1 and the positioning base 4, and solves the problem in the current one-piece molding solution that the identification point is difficult to form while ensuring hardness or the hardness cannot be guaranteed while ensuring the formation of the identification point.

[0107] In the embodiment of the present application, specifically, the separate connection between the positioning base 4 and the positioning top 1 is formed by interference fit, thread fit or snap fit.

[0108] For example, by limiting the size of the connection diameter to form an interference fit, similarly, by forming internal and external threads on the corresponding surfaces of the positioning base 4 and the positioning top 1, a threaded fit can be formed. Therefore, the split connection of the present application can be presented through the structure, and the split connection and the integrated connection can be distinguished structurally.

[0109] It should be understood that the aforementioned split connection method of the present application can be a reversible connection method, i.e., it can be disassembled and reattached. In other optional embodiments of the present application, the split connection between the positioning base and the positioning top can also be an irreversible installation connection, i.e., it cannot be disassembled after being connected. The present application does not impose any restrictions on this. In the present application, irreversible installation is preferred to ensure the rigid state of the scanning rod and ensure stability.

[0110] 4. Scanning rod identification part

[0111] In order to solve the problem of single scanning rod features in ordinary scanning rod technology, this embodiment provides a scanning rod structure. The scanning rod provided in the embodiment of the present application further includes a scanning rod identification part 5, which is arranged on the scanning rod positioning part and extends laterally outward from the scanning rod positioning part. The scanning rod identification part 5 has an upper surface, and the upper surface is provided with identifications located at different heights.

[0112] In this embodiment, the upper surface of the scanner marking portion 5 is provided with markings at different heights to create spatial marking points, enabling the scanner positioning portion to perform three-dimensional positioning. This increases the spatial distribution of the markings and improves the accuracy of the markings' position after scanning. Furthermore, the markings at different heights can be identical or different, increasing the variety of features and further improving positioning accuracy. The distribution of the markings on the upper surface facilitates scanning by the scanner, reducing the need to adjust the scanner's scanning angle.

[0113] In the embodiments of this application, please combine Figure 6a 、 Figure 6b as well as Figure 7 As shown, the scanning rod identification portion 5 is in a step shape, so that the step top surface 511 and the step bottom surface 512 form two upper surfaces of different heights, and the identification is set in the two upper surfaces of different heights, so that the identification has different heights.

[0114] In the embodiments of this application, Figure 7 As shown, a mark 5111 is set on the top surface 511 of the step and a mark 5121 is set on the bottom surface 512 of the step. The mark can be a characteristic point or a characteristic shape, such as a circle, a triangle, etc. The mark can include one or more, and this application does not impose any restrictions on this.

[0115] In an embodiment not shown, the scanning rod identification portion 5 is shaped like a polyhedron, with each facet not being coplanar. Thus, the scanning rod identification portion 5 may include multiple upper surfaces at different heights, each with the identification formed on the upper surface. One possible implementation is a hexagonal shape, where each facet can be used to create a spatial identification point. This facilitates the creation of spatial identification points and improves the accuracy of the spatial positioning of the scanning rod positioning portion.

[0116] In addition, in other embodiments, the upper surface of the scanning rod identification portion 5 of the present application can be an inclined surface, so as to form identifications of different heights on the inclined surface.

[0117] In this embodiment, since markers of different heights can be formed, the three-dimensionally distributed marker points can be obtained by scanning the upper surface during the scanner scanning. That is, a single surface scan can scan the three-dimensionally distributed spatial marker points without adjusting the scanning angle of the scanner. This application improves the scanning accuracy by having the marker points have a three-dimensional distribution. At the same time, the distribution of marker points in different dimensions can better constrain the accuracy of the collected data.

[0118] Furthermore, in the embodiment of the present application, the identifier may be an identification point or a coding point, or other geometric shapes, etc., and the present application does not impose any restrictions on this.

[0119] In other embodiments, the upper surface of the scanning rod identification portion 5 of the present application may be a curved surface, thereby forming identifications of different heights on the curved surface. The curved surface is preferably a curved surface with a gently changing curvature.

[0120] Furthermore, in the embodiment of the present application, the shapes of the logos on the scanning rod identification portion 5 of each scanning rod may be the same or different.

[0121] Please continue to see Figure 1a In a preferred embodiment, the scanning rod identification portion 5 includes an identification body portion 51 and a second fastener 52. The identification body portion 51 is connected to the positioning top portion 1 via the second fastener 52, and the second fastener 52 is engaged with the end of the identification body portion 51 near the positioning top portion 1. The identification is provided on the surface of the identification body portion 51.

[0122] In an optional embodiment, the scanning rod identification portion 5 includes a third inner cavity, and the second fastener 52 passes through the third inner cavity and is limitedly engaged with the positioning top 1.

[0123] In addition, the scanning rod provided in this application also provides a second pre-tightening member 53 corresponding to the second fastening member 52, such as Figure 1aAs shown, the scanning rod identification portion 5 includes a second pre-tightening member 53, which is sleeved on the outer wall of the second fastening member 52 and is limitedly engaged with the end of the second fastening member 52 away from the positioning top 1. That is, the second fastening member 52 fixes the scanning rod identification portion 5 to the scanning rod positioning portion through the second pre-tightening member 53. It should be noted that in the preferred embodiment, the limiting engagement method of the second fastening member 52 and the second pre-tightening member 53 is the same as the limiting engagement method of the first fastening member 2 and the first pre-tightening member 3. Therefore, the provision of the second pre-tightening member 53 also has an anti-rotation effect when the scanning identification body 51 is combined with the positioning top 1 through the second fastening member 52.

[0124] The identification body 51 may adopt a structure similar to the scanning rod positioning part, that is, it may be a split type or an integrally formed one, and this application does not impose any limitation on this.

[0125] Similarly, the identification body 51 can also include an identification body base and an identification body top, so that the second fastener 52 is installed at the bottom of the identification body base, combined and fixed with the side wall of the positioning top, and then the scanning rod identification part and the positioning top are combined and fixed.

[0126] It should be understood that the connection between the scanning rod identification portion 5 and the scanning rod positioning portion can also be installed in a split manner or formed in one piece, and this application does not impose any restrictions on this.

[0127] In this application, the scanning rod identification portion 5 and the positioning top 1 are preferably integrally formed, and can be integrally formed with the same material. The identification can also be distributed on the surface of the positioning top 1. The identification is distributed on each surface of the scanning rod identification portion 5 and each surface of the positioning top 1.

[0128] In an embodiment of the present application, the present application can further configure a scanning rod identification part 5 with a split structure, split the scanning rod positioning part and the scanning rod identification part 5 into two parts, and fix the scanning rod identification part 5 on the scanning rod positioning part along the extension direction of the third inner cavity (i.e., the horizontal direction in the figure) through the second fastener 52, so as to facilitate the use of the scanning rod positioning part and scanning rod identification parts 5 of different lengths and shapes, and is suitable for different oral environments and adapts to the spatial position of the implant rod, meeting the requirements of different scanning scenarios.

[0129] In addition, in an optional embodiment, the scanning rod identification portion 5 is made of aluminum alloy and has a black surface, and other components are made of fatigue-resistant materials. The scanning rod identification portion 5 and the scanning rod positioning portion are assembled separately through a second fastener, so that different materials can be used. In this way, the scanning rod positioning portion does not need to use the same material as the scanning rod identification portion 5, but can use a more durable stainless steel material, which can be used in more adaptation scenarios.

[0130] Based on the same innovative concept, the separate connection between the base of the logo main body and the top of the logo main body can be formed by interference fit, thread fit or snap fit, which will not be described in detail here.

[0131] Furthermore, in the embodiment of the present application, an anti-falling structure may also be configured in the scanning rod identification portion. The structural details thereof are similar to the anti-falling structure in the scanning rod positioning portion in the embodiment of the present application, and this application will not elaborate on this.

[0132] It should be noted that, any of the above four core concepts of the present application can be selectively combined with other core concepts, or a scanning rod can be configured separately. For example, for the anti-falling structure, it can be included in the split mounting structure and combined with the split mounting structure to form a scanning rod structure, or it can independently form a scanning rod structure. The present application does not impose any restrictions on this.

[0133] In the most preferred embodiment, the above four concepts of the present application are combined in a scanning rod structure, so that the scanning rod can solve all technical problems of the prior art, which will not be elaborated in this application.

[0134] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0135] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0136] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0137] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A scanning rod, characterized in that: include: The scanning rod positioning part is provided with an inner cavity, and a first fastener is provided in the inner cavity. The first fastener includes a limiting part and a fastening part. The bottom of the scanning rod positioning part is provided with a mounting hole for the fastening part to pass through. The bottom of the scanning rod positioning part and the limiting part are limitedly matched along the extension direction of the inner cavity. The fastening part passes through the mounting hole for connection with the implant. The inner cavity passes through the top end of the scanning rod positioning part for the user to operate the first fastener. The scanning rod positioning part is provided with an anti-falling structure for preventing the first fastener from escaping from the inner cavity.

2. The scanning rod according to claim 1, characterized in that: The anti-falling structure includes a ring or a plurality of protrusions arranged in a ring shape and provided on the inner cavity wall and protruding inward from the inner cavity wall; and / or, The inner cavity wall limits the first fastener along the extension direction of the inner cavity; or, the bottom of the scanning rod positioning part is provided with a limiting hole for cooperating with the implant.

3. The scanning rod according to claim 2, characterized in that: The anti-falling structure is provided at the positioning top; and / or, The scanning rod further includes a scanning rod identification portion, which is disposed on the scanning rod positioning portion and extends laterally outward from the scanning rod positioning portion.

4. A scanning rod, characterized in that: include: The scanning rod positioning part is provided with an inner cavity, and a first fastener is provided in the inner cavity. The first fastener includes a limiting part and a fastening part. The bottom of the scanning rod positioning part is provided with a mounting hole for the fastening part to pass through. The bottom of the scanning rod positioning part and the limiting part are limitedly matched along the extension direction of the inner cavity. The fastening part passes through the mounting hole for connection with the implant. The inner cavity passes through the top end of the scanning rod positioning part for the user to operate the first fastener. A first pre-tightening part is provided between the limiting part and the bottom end of the scanning rod positioning part. The first pre-tightening part is sleeved on the outer wall of the fastening part.

5. The scanning rod according to claim 4, characterized in that: The first pre-tightening member is limited along the extension direction of the inner cavity between the limiting portion and the bottom end of the scanning rod positioning portion; and / or, The scanning rod positioning portion includes a positioning base and a positioning top, wherein the positioning base and the positioning top are integrally formed, or the positioning base and the positioning top are separately connected; and / or, The scanning rod positioning portion includes a positioning base and a positioning top, the positioning base is separately connected to the positioning top, and the separate connection between the positioning base and the positioning top is formed by interference fit, thread fit or snap fit; and / or, The separate connection between the positioning base and the positioning top is an irreversible installation connection.

6. A scanning rod, characterized in that: include: The scanning rod positioning part is provided with an inner cavity, and a first fastener is provided in the inner cavity. The first fastener includes a limiting part and a fastening part. The bottom of the scanning rod positioning part is provided with a mounting hole for the fastening part to pass through. The bottom of the scanning rod positioning part and the limiting part are limitedly matched along the extension direction of the inner cavity. The fastening part passes through the mounting hole for connection with the implant. The inner cavity passes through the top end of the scanning rod positioning part for the user to operate the first fastener. The scanning rod positioning part includes a positioning base and a positioning top, and the positioning base and the positioning top are separately connected.

7. The scanning rod according to claim 6, characterized in that: The separate connection between the positioning base and the positioning top is formed by interference fit, thread fit or snap fit; and / or, The separate connection between the positioning base and the positioning top is an irreversible installation connection.

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