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

[0001] This application is a divisional application of Chinese patent application filed on May 20, 2024, with application number 202421105394.2 and title "A Scanning Rod", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to the field of intraoral implantation technology, and in particular to a scanning rod. Background Technology

[0003] For edentulous intraoral implants, most currently use traditional impression taking techniques and digital impression scanners scanning ordinary scanning rods. Traditional impression taking techniques are cumbersome and time-consuming. In the existing digital impression scanner scanning ordinary scanning rod technology, the scanning rod generally includes a positioning part, which is fixed to the implant by fasteners. The current scanning rod has many shortcomings, such as simple features, fasteners being easy to fall off during assembly, the positioning part of the scanning rod being prone to rotation during installation, and limitations in manufacturing processes and materials. Utility Model Content

[0004] The purpose of this application is to provide a scanning rod that aims to solve at least one problem that occurs in most current technologies that use traditional impression taking techniques and digital impression instruments to scan ordinary scanning rods.

[0005] A first aspect of this application provides a scanning rod, comprising:

[0006] The scanning rod positioning part has 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 has a mounting hole for the fastening part to pass through. The bottom of the scanning rod positioning part and the limiting part are limited and 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 extends through the top of the scanning rod positioning part for the user to operate the first fastener. The scanning rod positioning part is provided with an anti-dislodgement structure to prevent the first fastener from dislodging from the inner cavity.

[0007] In an optional embodiment of the first aspect, the anti-detachment structure includes a ring or a plurality of protrusions arranged in a ring shape and disposed on the inner wall of the cavity and protruding inward from the inner wall of the cavity.

[0008] In an optional embodiment of the first aspect, the scanning rod positioning part 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.

[0009] In an optional embodiment of the first aspect, the anti-detachment structure is located at the top of the positioning.

[0010] In an optional embodiment of the first aspect, a first pre-tightening member is provided between the bottom of the limiting part and the bottom of the scanning rod positioning part, and the first pre-tightening member is sleeved on the outer wall of the fastening part.

[0011] In an optional embodiment of the first aspect, the first pretensioner is positioned between the bottom of the limiting portion and the bottom of the scanning rod positioning portion along the extension direction of the inner cavity.

[0012] In an optional embodiment of the first aspect, the scanning rod further includes a scanning rod marking portion, which is disposed on the scanning rod positioning portion and extends laterally outward from the scanning rod positioning portion;

[0013] The scanning bar marking section has an upper surface, and the upper surface is provided with markings at different heights.

[0014] In an optional embodiment of the first aspect, the scanning bar marking portion is located at the top of the positioning bar.

[0015] In an optional embodiment of the first aspect, the scanning bar marking portion includes a marking body portion and a second fastener, wherein the marking body portion is fixed to the scanning bar positioning portion by means of the second fastener.

[0016] 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 limiting.

[0017] A second aspect of this application provides a scanning rod, comprising:

[0018] The scanning rod positioning part has an inner cavity, in which a first fastener is provided. The first fastener includes a limiting part and a fastening part. The bottom of the scanning rod positioning part has a mounting hole for the fastening part to pass through. The bottom of the scanning rod positioning part and the limiting part are matched in a limiting manner along the extension direction of the inner cavity. The fastening part passes through the mounting hole for connection with the implant. The inner cavity extends through the top of the scanning rod positioning part for the user to operate the first fastener. A first pre-tightening member is provided between the limiting part and the bottom of the scanning rod positioning part. The first pre-tightening member is sleeved on the outer wall of the fastening part.

[0019] In an optional embodiment of the second aspect, the first pretensioner is positioned between the limiting portion and the bottom end of the scanning rod positioning portion along the extension direction of the inner cavity.

[0020] In an optional embodiment of the second aspect, the scanning rod positioning part 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.

[0021] In an optional embodiment of the second aspect, the scanning rod positioning part includes a positioning base and a positioning top, the positioning base and the positioning top being separately connected, and the separate connection between the positioning base and the positioning top is formed by interference fit, threaded fit, or snap-fit ​​fit; and / or,

[0022] The separation between the positioning base and the positioning top is an irreversible installation connection.

[0023] In an optional embodiment of the second aspect, the scanning rod further includes a scanning rod marking portion, which is disposed on the scanning rod positioning portion and extends laterally outward from the scanning rod positioning portion;

[0024] The scanning bar marking section has an upper surface, and the upper surface is provided with markings at different heights.

[0025] In an optional embodiment of the second aspect, the scanning rod positioning part includes a positioning base and a positioning top, the positioning base and the positioning top are separately connected, and the scanning rod marking part is disposed on the positioning top.

[0026] In an optional embodiment of the second aspect, the scanning bar marking portion includes a marking body portion and a second fastener, wherein the marking body portion is fixed to the scanning bar positioning portion by means of the second fastener.

[0027] In an optional embodiment of the second aspect, the scanning rod positioning part is provided with an anti-detachment structure to prevent the first fastener from detaching from the inner cavity.

[0028] In an optional embodiment of the second aspect, the anti-detachment structure includes a ring or a plurality of protrusions arranged in a ring shape and disposed on the inner wall of the cavity and protruding inward from the inner wall of the cavity.

[0029] In an optional embodiment of the second aspect, the scanning rod positioning part includes a positioning base and a positioning top, and the anti-drop structure is disposed on the positioning top.

[0030] A third aspect of this application provides a scanning rod, including: a scanning rod positioning part, the scanning rod positioning part having an inner cavity, a first fastener being provided in the inner cavity, the first fastener including a limiting part and a fastening part, the bottom of the scanning rod positioning part having a mounting hole for the fastening part to pass through, the bottom of the scanning rod positioning part and the limiting part being limited and engaged along the extension direction of the inner cavity, the fastening part passing through the mounting hole for connection with an implant, the inner cavity penetrating the top end of the scanning rod positioning part for user operation of the first fastener, the scanning rod positioning part including a positioning base and a positioning top, the positioning base and the positioning top being separately connected.

[0031] In an optional embodiment of the third aspect, the separate connection between the positioning base and the positioning top is formed by interference fit, threaded fit or snap-fit.

[0032] In an optional embodiment of the third aspect, the separate connection between the positioning base and the positioning top is an irreversible installation connection.

[0033] In an optional embodiment of the third aspect, the scanning rod further includes a scanning rod marking portion, which is disposed on the scanning rod positioning portion and extends laterally outward from the scanning rod positioning portion;

[0034] The scanning bar marking section has an upper surface, and the upper surface is provided with markings at different heights.

[0035] In an optional embodiment of the third aspect, the scanning bar marking portion is located at the top of the positioning bar.

[0036] In an optional embodiment of the third aspect, the scanning bar marking portion includes a marking body portion and a second fastener, wherein the marking body portion is fixed to the scanning bar positioning portion by means of the second fastener.

[0037] In an optional embodiment of the third aspect, a first pre-tightening member is provided between the bottom of the limiting part and the scanning rod positioning part, and the first pre-tightening member is sleeved on the outer wall of the fastening part.

[0038] In an optional embodiment of the third aspect, the first pretensioner is positioned between the bottom of the limiting portion and the bottom of the scanning rod positioning portion along the extension direction of the inner cavity.

[0039] In an optional embodiment of the third aspect, the scanning rod positioning part is provided with an anti-detachment structure to prevent the first fastener from detaching from the inner cavity.

[0040] In an optional embodiment of the third aspect, the anti-detachment structure includes a ring or a plurality of protrusions arranged in a ring shape and disposed on the inner wall of the cavity and protruding inward from the inner wall of the cavity.

[0041] A fourth aspect of this application provides a scanning rod, comprising:

[0042] The scanning rod positioning part and the scanning rod marking part are provided. The scanning rod positioning part is used to connect with the implant. The scanning rod marking part is provided on the scanning rod positioning part and extends laterally outward from the scanning rod positioning part. The scanning rod marking part has an upper surface, and the upper surface is provided with markings at different heights.

[0043] In an optional embodiment of the fourth aspect, the upper surface may include a plurality of upper surfaces at different heights, or the upper surface may be inclined.

[0044] In an optional embodiment of the fourth aspect, the scanning bar marking portion is a stepped structure, wherein the top surface and the bottom surface of the step form the upper surface of the scanning bar marking portion, and the marking is provided on the top surface and the bottom surface of the step.

[0045] In an optional embodiment of the fourth aspect, the upper surface of the scanning bar marking portion is curved.

[0046] In an optional embodiment of the fourth aspect, the identifier includes an identifier point.

[0047] In an optional embodiment of the fourth aspect, the scanning bar marking portion includes a marking body portion and a second fastener, wherein the marking body portion is fixed to the scanning bar positioning portion by means of the second fastener.

[0048] In an optional embodiment of the fourth aspect, 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 limited and engaged along the extension direction of the inner cavity. The fastening part passes through the mounting hole for connection with the implant. The inner cavity extends through the top of the scanning rod positioning part for the user to operate the first fastener.

[0049] A first pre-tightening member is provided between the bottom of the limiting part and the bottom of the scanning rod positioning part, and the first pre-tightening member is sleeved on the outer wall of the fastening part.

[0050] In an optional embodiment of the fourth aspect, the scanning rod positioning part is provided with an anti-detachment structure to prevent the first fastener from dislodging from the inner cavity.

[0051] In an optional embodiment of the fourth aspect, a first pre-tightening member is provided between the bottom of the limiting part and the scanning rod positioning part, and the first pre-tightening member is sleeved on the outer wall of the fastening part.

[0052] In an optional embodiment of the fourth aspect, the scanning rod positioning portion includes a positioning top and a positioning base, the positioning top and the positioning base being separately mounted.

[0053] The beneficial effects of the first aspect embodiment of this application compared with the prior art are: by limiting the bottom of the scanning rod positioning part and the limiting part of the first fastener along the extension direction of the inner cavity, and configuring an anti-detachment structure to prevent the first fastener from detaching from the inner cavity, the first fastener can be prevented from detaching from the inner cavity, thereby improving operational stability.

[0054] The beneficial effects of the second aspect of this application compared with the prior art are as follows: by limiting the bottom end of the scanning rod positioning part and the limiting part of the first fastener along the extension direction of the inner cavity, and by providing a first pre-tightening member between the limiting part and the bottom end of the scanning rod positioning part, the first pre-tightening member is sleeved on the outer wall of the fastening part. Through the relative friction between the pre-tightening member and the fixing member and the relative friction between the pre-tightening member 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 positioning top from rotating and loosening during installation or operation, and improve stability.

[0055] The beneficial effects of the third aspect embodiment of this application compared with the prior art are: by configuring a positioning base and a positioning top that are connected separately, and configuring a first fastener in the inner cavity, each component can be configured independently, and each component can be made of different materials and processes, thereby better matching the needs of the scenario.

[0056] The beneficial effects of the fourth aspect embodiment of this application compared with the prior art are as follows: by configuring the scanning rod marking part, the upper surface of the scanning rod marking part is provided with markings at different heights, thereby markings with different spatial features, improving the spatial hierarchy and richness of marking features, thus enriching feature dimensions, improving recognition accuracy, and solving the problem of single scanning rod features and low recognition accuracy at present. Attached Figure Description

[0057] Figure 1a This is an exploded structural diagram of a scanning rod provided in an embodiment of this application.

[0058] Figure 1b This is a schematic diagram of the assembly structure of a scanning rod provided in an embodiment of this application.

[0059] Figure 2a A front view of a positioning base provided in an embodiment of this application.

[0060] Figure 2b This is a cross-sectional view of a positioning base provided in an embodiment of this application.

[0061] Figure 3 A cross-sectional view of the scanning rod after assembly, provided in an embodiment of this application.

[0062] Figure 4a This is a top positioning diagram provided for an embodiment of this application.

[0063] Figure 4b A top view of the positioning provided in an embodiment of this application.

[0064] Figure 5 This is a schematic diagram of a fastener structure provided in an embodiment of this application.

[0065] Figure 6a A front view of a scanning bar marking section provided in an embodiment of this application.

[0066] Figure 6b This is a schematic diagram of a scanning bar marking section provided in an embodiment of this application.

[0067] Figure 7 This is a top view of a scanning bar marking section provided in an embodiment of this application.

[0068] Reference numerals: 1-Positioning top, 11-Anti-detachment 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 receiving cavity, 42-Matching shaft position, 43-Mounting hole, 44-Scanning rod mounting cavity, 5-Scanning rod marking part, 51-Marking body part, 52-Second fastener, 53-Second pre-tightening part, 511-Step top surface, 512-Step bottom surface, 5111, 5121-Marking, 6-Inner cavity. Detailed Implementation

[0069] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0070] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0071] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0072] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0073] This application aims to address at least one problem that exists in most current technologies that employ traditional impression taking techniques and digital impression scanners to scan ordinary scanning rods.

[0074] Specifically, to facilitate understanding of this application, the embodiments of this application first provide a basic structure for an intraoral scanning rod. Figure 1a This illustration shows an exploded view of a scanning rod according to one embodiment of the present application. Figure 1b This illustration shows a schematic diagram of the assembly structure of a scanning rod according to one embodiment of this application. Figure 3 This is a cross-sectional view of the scanning rod after assembly according to another embodiment. The scanning rod includes a scanning rod positioning part, 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 part, which has an inner cavity 6. A first fastener 2 is provided in the inner cavity 6. The first fastener 2 can move in the inner cavity 6 along the extending direction of the inner cavity 6. One end of the first fastener 2 protrudes 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 is limited and engaged with the bottom of the positioning base 4, thereby connecting and fixing the scanning rod to the implant.

[0075] It should be noted that the other end of the first fastener 2 is engaged with the bottom limit of the positioning base 4 in a structural manner, meaning 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 to the implant through the first fastener 2.

[0076] It should be understood that the other end of the first fastener 2 in this application is engaged with the bottom of the positioning base 4. Specifically, this means that the other end of the first fastener 2 is restricted 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 restricted to the top of the positioning base 4. This embodiment also falls under the category of "the other end of the first fastener 2 is engaged with the bottom of the positioning base 4". Figure 2b and Figure 4b As shown, the inner cavity 6 of the scanning rod positioning part can be divided into a first inner cavity 401 of the positioning base 4 and a second inner cavity 402 of the positioning top 1, as follows. Figure 5As shown, the first fastener 2 includes a limiting part 21 and a fastening part 22. The fastening part 22 passes through the mounting hole 43 and is engaged with the implant (e.g., threaded engagement). The first inner cavity 401 includes the mounting hole 43, and the limiting part 21 is limited within the second inner cavity 402. In this way, the scanning rod can be fixed on the implant by the combined action of the limiting part 21 and the fastening part 22.

[0077] Figure 2a and Figure 2b The internal positional relationship between the first fastener 2 and the positioning top 1 and positioning base 4 is further explained. Figure 2a This application provides a front view of a positioning base according to an embodiment of the present application. Figure 2b A sectional view of a positioning base provided in an embodiment of this application, such as... Figure 2a and Figure 2b The first inner cavity 401 of this application may specifically include a first fastener receiving cavity 41, a mounting hole 43, and a scanning rod mounting cavity 44. The mating shaft 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 receiving cavity 41 is larger than the inner diameter of the mounting hole 43. The inner wall of the first fastener receiving cavity 41 and the inner wall of the mounting hole 43 form a stepped structure, so that the limiting part 21 of the first fastener 2 can be limited by the stepped structure within the first fastener receiving cavity 41 and the second cavity 402 of the positioning top 1, thereby realizing the "bottom limiting fit between the limiting part of the first fastener 2 and the positioning base 4". Of course, this application may also include other limiting structures, which will not be enumerated here.

[0078] As can be seen, in this embodiment, the first fastener 2 is limited along the extending direction of the inner cavity 6, so that the first fastener 2 can move within the inner cavity 6. The scanning rod positioning part is then coupled to the implant by manipulating the first fastener 2. It should be understood that the extending direction of the inner cavity 6 in this embodiment is... Figure 1b The direction from top to bottom or bottom to top, i.e. the "vertical" direction, will not be elaborated upon in this application.

[0079] Furthermore, in this embodiment, the scanning rod mounting cavity 44 is a limiting hole provided at the bottom of the scanning rod positioning part for cooperating with the implant for limiting. The inner diameter of the scanning rod mounting cavity 44 is larger than the inner diameter of the mounting hole 43. The inner wall of the scanning rod mounting cavity 44 and the inner wall of the mounting hole 43 form a stepped structure, so that the implant can be limited in the scanning rod mounting cavity 44 by the stepped structure.

[0080] In practical use, the positioning base 4 of the scanning rod needs to be fixed to the implant to perform scanning inside the oral cavity.

[0081] It should be noted that the positioning part of the scanning rod is columnar, and can be cylindrical or hexagonal prism.

[0082] In one embodiment, the scanning rod positioning part is provided with a scanning mark part, which extends laterally outward from the scanning positioning part, and the surface of the scanning mark part is provided with a mark.

[0083] The following is a detailed description of the various innovations of this utility model based on the above structure.

[0084] 1. Anti-fall-off structure

[0085] To prevent the first fastener 2 from falling off the top of the scanning rod, please continue reading. Figures 1a to 4b This embodiment provides a scanning rod, including a scanning rod positioning part. The scanning rod positioning part has an inner cavity 6, and a first fastener 2 is provided in the inner cavity 6. The first fastener 2 includes a limiting part 21 and a fastening part 22. The bottom of the scanning rod positioning part has a mounting hole 43 for the fastening part 22 to pass through. The bottom of the scanning rod positioning part and the limiting part 21 are matched and limited along the extension direction of the inner cavity 6. The fastening part 22 passes through the mounting hole for connection with the implant. The inner cavity 6 extends through the top of the scanning rod positioning part for the user to operate the first fastener 2. The scanning rod positioning part is provided with an anti-dislodgement structure 11 to prevent the first fastener 2 from dislodging from the inner cavity. It should be noted that the inner cavity 6 includes a 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.

[0086] Based on the above description of the overall structure of the scanning rod and the connection between its various components, the scanning rod positioning part is provided with an inner cavity 6. The bottom of the scanning rod positioning part and the limiting part 21 are limited and matched along the extension direction of the inner cavity 6. Then, the first fastener 2 is completely built into the inner cavity 6 by the anti-detachment structure 11, thereby preventing the first fastener from falling off and solving the problem of inconvenience in carrying and easy loss caused by the separation of the first fastener 2 from the scanning rod.

[0087] It should be understood that in this embodiment, the bottom of the scanning rod positioning part is the bottom of the positioning base 4, and this will not be described in detail here.

[0088] Specifically, the anti-detachment structure 11 is located at the top of the positioning top 1, and the anti-detachment structure 11 can prevent the first fastener 2 from coming off the positioning top.

[0089] For example, the anti-detachment structure 11 of this application can be formed on the top inner wall of the inner cavity 6, or the anti-detachment structure 11 of this application can be assembled on the top inner wall of the inner cavity 6, thereby preventing the first fastener 2 from coming out by limiting the first fastener 2.

[0090] For example, the anti-detachment structure of this application includes a ring or a plurality of protrusions arranged in a ring shape and disposed on the inner wall of the cavity and protruding inward from the inner wall of the cavity.

[0091] In one possible implementation, the anti-detachment structure 11 can be a raised ring disposed in the second inner cavity 402 near the top of the positioning top 1 to prevent the first fastener 2 from coming off the top of the positioning top 1.

[0092] In another possible implementation, the anti-detachment structure 11 can also be multiple protrusions, each protrusion can be set at the same distance around the perimeter, and configured in the second inner cavity 402 near the top of the positioning top 1, which can effectively prevent the first fastener 2 from coming out of the second inner cavity 402 in the positioning top 1.

[0093] For example, such as Figure 3 As shown, the anti-detachment structure 11 in this embodiment can also be formed by reducing the diameter of the inner cavity 6, that is, by configuring the diameter of the limiting part 21 of the first fastener 2 to be larger than the inner diameter of the anti-detachment structure 11, thereby achieving the anti-detachment function.

[0094] As can be seen, the anti-detachment structure 11 of this 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 on the implant abutment in the oral cavity due to the first fastener 2 falling out. Of course, in this embodiment, the configuration of the anti-detachment structure 11 can also be other structures, as long as it has the effect of limiting and preventing detachment, and no specific restrictions are made here.

[0095] It should be noted that in this embodiment, the limiting part 21 can not only effectively prevent the first fastener 2 from coming out of the positioning top 1, but also facilitate the operation (tightening or loosening) of the first fastener 2 by avoiding the anti-drop structure 11. This application will not elaborate on this.

[0096] The anti-dislodgement structure of the intraoral scanning rod provided in this embodiment uses the top of the positioning top 1 of the scanning rod to limit the fit with the limiting part 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-dislodgement structure 11 further prevents the first fastener 2 from falling out of the inner cavity 6, thereby improving the problem of inconvenient assembly operation of the scanning rod on the implant abutment in the oral cavity due to the first fastener 2 falling out.

[0097] 2. Pre-tightened anti-rotation structure

[0098] To prevent the scanning rod from rotating during assembly, this embodiment provides a pre-tightening anti-rotation structure for the scanning rod. For details, please refer to... Figures 1a to 5The scanning rod positioning part of this application has an inner cavity 6, and a first fastener 2 is provided in the inner cavity 6. The first fastener 2 includes a limiting part 21 and a fastening part 22. The bottom of the scanning rod positioning part is provided with a mounting hole 43 for the fastening part 22 to pass through. The bottom of the scanning rod positioning part and the limiting part 21 are limited and matched along the extension direction of the inner cavity 6. The fastening part 22 passes through the mounting hole for connection with the implant. The inner cavity 6 penetrates the bottom of the scanning rod positioning part and extends along its extension direction to allow the user to operate the first fastener 2. A first pre-tightening member 3 is provided between the limiting part 21 and the bottom of the scanning rod positioning part. The first pre-tightening member 3 is sleeved on the outer wall of the fastening part 22.

[0099] Specifically, when installing the scanning rod, it is fixed to the implant by installing the first fastener 2. The first fastener 2 is assembled onto the implant by spiral rotation (the two are threaded). At this time, the presence of the first pre-tightening member 3 provides rotation buffer, which can prevent the scanning rod from rotating.

[0100] 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 and is fixed to the implant.

[0101] In this embodiment, the first pre-tightening member 3 can be an integrally connected ring structure. In one possible implementation, the first pre-tightening member 3 can be a gasket or other open or closed ring-shaped intermediate member, without specific limitations.

[0102] It should be understood that the configuration of the first pre-tightening member 3 in this application can be used in conjunction with the above-mentioned anti-detachment structure to form a scanning rod structure, or can be used independently to form a scanning rod structure based on this concept. No limitation is made here. The pre-tightening anti-rotation structure of this application can prevent the scanning rod from rotating during the assembly process.

[0103] 3. Split installation structure

[0104] To address the limitations of current scanning rod manufacturing processes and materials, as well as the requirement for an internal first fastener, this embodiment provides a split scanning rod, in which the positioning base 4 and positioning top 1 of the scanning rod are separately configured.

[0105] Thus, because the positioning base 4 and the positioning top 1 of this embodiment are set separately, they can be made of different materials, which can adapt to different oral environments and fit the spatial position of the implant rod, so as to achieve the best scanning scenario requirements.

[0106] Furthermore, the separate installation of the positioning base 4 and the positioning top 1 facilitates the embedding of the first fastener 2 in the inner cavity 6. In conjunction with the anti-detachment structure 11, the first fastener 2 can be limited and positioned in the inner cavity 6, preventing the first fastener 2 from coming out of the inner cavity 6 during assembly and use.

[0107] Specifically, the positioning top 1 can have a black surface treatment and can be made of aluminum alloy, which is suitable for the formation of the marking point. The positioning base 4 can be made of stainless steel. 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 fatigue resistance. Furthermore, the positioning top 1 and positioning base 4, which are installed separately, can be made by different processes, so the manufacturing process is not limited. This expands the range of process and material selection for the positioning top 1 and positioning base 4, and solves the problem in the current one-piece molding scheme that it is difficult to form the marking point while ensuring hardness or cannot ensure hardness while ensuring the formation of the marking point.

[0108] In this embodiment of the application, the separate connection between the positioning base 4 and the positioning top 1 is formed by interference fit, threaded fit or snap fit.

[0109] 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 to form a threaded fit, the split connection of this application can be shown through the structure, and thus the split connection and the integral connection can be distinguished structurally.

[0110] It should be understood that the aforementioned split connection method in this application can be a reversible connection method, meaning it can be disassembled and reconnected. In other optional embodiments of this application, the split connection between the positioning base and the positioning top can also be an irreversible installation connection, meaning it cannot be disassembled after connection. This application does not impose any restrictions on this. In this application, irreversible installation is preferred to ensure the rigidity of the scanning rod and ensure stability.

[0111] 4. Scanner marking section

[0112] To address the issue of limited features in conventional scanning bar technology, this embodiment provides a scanning bar structure. The scanning bar provided in this embodiment further includes a scanning bar marking part 5, which is located on the scanning bar positioning part and extends laterally outward from the scanning bar positioning part. The scanning bar marking part 5 has an upper surface with markings at different heights.

[0113] In this embodiment, spatial marker points are created by providing markers at different heights on the upper surface of the scanning rod marker part 5. This allows the scanning rod positioning part to perform three-dimensional positioning, increasing the spatial distribution dimension of the markers and improving the accuracy of marker identification and positioning after scanning. Furthermore, the markers at different heights can be the same or different, increasing the variety of features and further improving positioning accuracy. The markers distributed on the upper surface also facilitate scanning by the scanner, reducing the need to adjust the scanner's scanning angle.

[0114] In the embodiments of this application, please refer to Figure 6a , Figure 6b as well as Figure 7 As shown, the scanning bar marking part 5 is stepped, so that the top surface 511 and the bottom surface 512 of the step form two upper surfaces of different heights, and the marking is set in the two upper surfaces of different heights, so that the marking has different heights.

[0115] In the embodiments of this application, such as Figure 7 As shown, a mark 5111 is provided on the top surface 511 of the step and a mark 5121 is provided on the bottom surface 512 of the step. The mark can be a feature point or a feature shape, such as a circle or a triangle. The mark can include one or more, and this application does not limit this.

[0116] In an embodiment not shown in the figure, the scanning bar marking part 5 is polyhedral in shape, with each face of the polyhedron not on the same plane. Therefore, the scanning bar marking part 5 can include multiple upper surfaces of different heights, with the marking formed on each upper surface. One possible implementation is a hexagon, where different faces can be used to create spatial marking points, which facilitates the creation of spatial marking points and improves the accuracy of the spatial positioning of the scanning bar positioning part.

[0117] Furthermore, in other embodiments, the upper surface of the scanning bar marking part 5 of this application can be an inclined surface, thereby forming markings of different heights on the inclined surface.

[0118] In this embodiment, since markers of different heights can be formed, the scanner can obtain three-dimensionally distributed marker points by scanning the upper surface. That is, a three-dimensionally distributed spatial marker point can be scanned for a single surface without adjusting the scanning angle of the scanner. This application improves scanning accuracy by having marker points in 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.

[0119] Furthermore, in the embodiments of this application, the identifier can be an identifier point, an encoding point, or other geometric shapes, etc., and this application does not impose any restrictions on it.

[0120] In other embodiments, the upper surface of the scanning bar marking part 5 of this application can be a curved surface, thereby forming markings of different heights on the curved surface. The curved surface is preferably a curved surface with a gentle curvature.

[0121] Furthermore, in this embodiment, the shape of the markings on the scanning bar marking portion 5 of each scanning bar may be the same or different.

[0122] Please continue reading Figure 1a In a preferred embodiment, the scanning bar marking portion 5 includes a marking body portion 51 and a second fastener 52. The marking body portion 51 is connected to the positioning top 1 via the second fastener 52, and the second fastener 52 engages with one end of the marking body portion 51 near the positioning top 1. The marking is affixed to the surface of the marking body portion 51.

[0123] In an optional embodiment, the scanning bar marking portion 5 includes a third inner cavity, and the second fastener 52 passes through the third inner cavity and engages with the positioning top 1 for limiting.

[0124] In addition, the scanning rod provided in this application also provides a second preload 53 corresponding to the second fastener 52, such as... Figure 1a As shown, the scanning rod marking part 5 includes a second pre-tightening member 53, which is sleeved on the outer wall of the second fastener 52 and engages with the end of the second fastener 52 away from the positioning top 1. That is, the second fastener 52 fixes the scanning rod marking part 5 to the scanning rod positioning part through the second pre-tightening member 53. It should be noted that, in the preferred embodiment, the limiting engagement method of the second fastener 52 and the second pre-tightening member 53 is the same as the limiting engagement method of the first fastener 2 and the first pre-tightening member 3. Therefore, the setting of the second pre-tightening member 53 also plays a role in preventing rotation when the scanning marking body part 51 is engaged with the positioning top 1 through the second fastener 52.

[0125] The main body 51 of the sign can adopt a structure similar to that of the scanning bar positioning part, that is, it can be a separate part or a single piece, and this application does not limit it in this regard.

[0126] Similarly, the main body of the sign may also include a base and a top, so that the second fastener 52 is installed at the bottom of the base of the main body and fixed to the side wall of the positioning top, thereby fixing the scanning bar sign and the positioning top together.

[0127] It should be understood that the connection between the scanning bar marking part 5 and the scanning bar positioning part can be either installed separately or integrally formed, and this application does not impose any restrictions on this.

[0128] In this application, the scanning bar marking portion 5 and the positioning top 1 are preferably integrally formed, and can be integrally formed from the same material. The markings can also be distributed on the surface of the positioning top 1. The markings are distributed on each surface of the scanning bar marking portion 5 and each surface of the positioning top 1.

[0129] In this embodiment, the application can further be configured with a split-structure scanning rod marking part 5. The scanning rod positioning part and the scanning rod marking part 5 are separated into two parts. The scanning rod marking part 5 is fixed to the scanning rod positioning part along the extension direction of the third inner cavity (i.e., the transverse direction in the figure) by the second fastener 52. This makes it convenient for the scanning rod positioning part to be used with scanning rod marking parts 5 of different lengths and shapes, suitable for different oral environments and adaptable to the spatial position of the implant rod, and meets the requirements of different scanning scenarios.

[0130] In addition, in an optional embodiment, the scanning bar marking part 5 is made of aluminum alloy with a black surface, and other components are made of materials with fatigue resistance. The scanning bar marking part 5 and the scanning bar positioning part are assembled separately by a second fastener, so different materials can be used. In this way, the scanning bar positioning part does not need to be made of the same material as the scanning bar marking part 5, but can be made of more robust stainless steel, which can be used for more applicable scenarios.

[0131] Based on the same innovative concept, the separate connection between the base of the sign body and the top of the sign body can be formed by interference fit, threaded fit or snap fit, which will not be elaborated here.

[0132] Furthermore, in this embodiment, an anti-detachment structure can also be configured inside the scanning rod marking section. The structural details are as described in the anti-detachment structure in the scanning rod positioning section of this embodiment, and will not be elaborated further in this application.

[0133] It should be noted that any one of the four core concepts mentioned above in this application can be selectively combined with other core concepts, or configured as a scanning rod independently. For example, for the anti-drop structure, it can be included in the split installation structure and combined with the split installation structure to form a scanning rod structure, or it can form a scanning rod structure independently. This application does not limit this.

[0134] In the most preferred embodiment, the four concepts described above are combined in the scanning bar structure, thereby the scanning bar can solve all the technical problems of the prior art, which will not be elaborated upon here.

[0135] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to 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 embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0136] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0137] The units described as separate components may or may not be physically separate. 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 can be selected to achieve the purpose of this embodiment according to actual needs.

[0138] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A scanning rod, characterized in that, include: The scanning rod positioning part and the scanning rod marking part are provided. The scanning rod positioning part is used to connect with the implant. The scanning rod marking part is provided on the scanning rod positioning part and extends laterally outward from the scanning rod positioning part. The scanning rod marking part has an upper surface, and the upper surface is provided with markings at different heights.

2. The scanning rod according to claim 1, characterized in that, The upper surface includes multiple surfaces at different heights; or, the upper surface of the scanning bar marking part is curved; or, the upper surface is inclined.

3. The scanning rod according to claim 1, characterized in that, The scanning bar marking section has a stepped structure, wherein the top and bottom surfaces of the steps form the upper surface of the scanning bar marking section, and the marking is provided on the top and bottom surfaces of the steps; and / or, The scanning rod positioning part includes a positioning top and a positioning base, the positioning top and the positioning base being separately mounted; and / or The identifier includes an identifier point.

4. The scanning rod according to claim 1, characterized in that, The scanning rod positioning part has 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 has a mounting hole for the fastening part to pass through. The bottom of the scanning rod positioning part and the limiting part are limited and 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 extends through the top of the scanning rod positioning part for the user to operate the first fastener. The scanning rod positioning part has an anti-dislodgement structure to prevent the first fastener from dislodging from the inner cavity.

5. The scanning rod according to claim 4, characterized in that, The anti-detachment structure includes a circular ring or multiple protrusions arranged in a ring shape, located on the inner wall of the cavity and protruding inward from the inner 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 limiting.

6. The scanning rod according to claim 4, characterized in that, The scanning rod positioning part includes a positioning base and a positioning top. The positioning base and the positioning top are integrally formed, or the positioning base and the positioning top are separately connected.

7. The scanning rod according to claim 6, characterized in that, The anti-drop structure is located at the top of the positioning, and a first pre-tightening member is provided between the bottom of the limiting part and the bottom of the scanning rod positioning base. The first pre-tightening member is sleeved on the outer wall of the fastening part.

8. The scanning rod according to claim 1, characterized in that, The scanning bar marking part includes a marking body and a second fastener. The marking body is connected to the positioning top through the second fastener, and the second fastener is in a limiting fit with one end of the marking body near the positioning top. The marking is set on the surface of the marking body.

9. The scanning rod according to claim 8, characterized in that, The scanning bar marking section includes an inner cavity, and the second fastener passes through the inner cavity and engages with the positioning top limit.

10. The scanning rod according to claim 8, characterized in that, The scanning bar marking part includes a second pre-tightening member, which is sleeved on the outer wall of the second fastener and is limited to the end of the second fastener away from the positioning top.

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