Scanning assembly

Abstract

The utility model relates to the technical field of dental implant scanning auxiliary devices, and provides a scanning assembly which comprises a scanning rod, a screw used for being fixed to an implant and a cross rod. The scanning rod is provided with a first hole, and the screw is inserted into the first hole. A second hole is formed in the scanning rod, and one end of the cross rod is detachably inserted into the second hole; the scanning rod is provided with a first mark used for being obtained by a scanner, and the outer surface of the cross rod is provided with a second mark used for being obtained by the scanner.

Description

Technical Field

[0001] The utility model belongs to the technical field of dental implant scanning auxiliary devices, and more specifically, relates to a scanning component. Background Art

[0002] During oral implant restoration of edentulous jaws, the scanning rod is used to be installed on the implant of the dental arch in the oral cavity. The 3D scanning head scans in the oral cavity to obtain multi-frame local 3D data of the oral cavity. Image processing is performed on the multi-frame local 3D data of the oral soft tissue and the standard 3D data of the scanning rod, and the 3D reconstruction is optimized and spliced ​​to finally optimize and determine the overall 3D data of the oral cavity. The scanning rod has a stable reference site, which improves the accuracy of the digital impression of the edentulous jaw implant.

[0003] However, the reference points provided by the scanning rod are usually limited to itself. When the distance between multiple scanning rods is too large, the scanning accuracy is easily affected.

[0004] For obtaining intraoral parameters by scanning, please refer to: (Chinese invention patent; publication number: CN116698360A; subject name: A structural scanning detection device and method for implants; publication date: 2023-09-05).

[0005] The scanning method using a scanning rod to assist in scanning can be referred to: (Chinese invention patent; publication number: CN105287039A; subject name: A scanning method and system for an intraoral implant; publication date: 2016-02-03) in the scanning rod. Utility Model Content

[0006] The purpose of the utility model is to provide a scanning assembly to solve the technical problem in the prior art that the reference point provided by the scanning rod is limited to itself.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a scanning assembly, including: a scanning rod, a screw for directly or indirectly fixing to the implant, and a cross bar; a first hole is provided on the scanning rod, and the screw is inserted into the first hole; a second hole is provided on the scanning rod, and one end of the cross bar is detachably inserted into the second hole; the scanning rod has a first mark for acquisition by a scanner, and the outer surface of the cross bar has a second mark for acquisition by a scanner.

[0008] Furthermore, there are multiple scanning rods, multiple cross rods, and multiple screws; the multiple scanning rods, multiple cross rods, and multiple screws correspond to each other one by one.

[0009] Further, the first mark includes: any one or more of a first planar surface located on the surface of the scanning rod, a second planar surface located on the surface of the scanning rod, and a first recessed portion located on the surface of the scanning rod; and / or

[0010] The second mark is a second recessed portion provided on the surface of the crossbar.

[0011] Furthermore, it also includes: any one or more of the first structure, the second structure, the third structure, and the fourth structure;

[0012] The first structure includes: the first planar surface and the second planar surface are arranged perpendicularly;

[0013] The second structure includes: the first planar surface and the second planar surface are connected to each other to form an intersection, and the first recessed portion is located on the intersection;

[0014] The third structure includes: the crossbar is an integral piece made of PEEK matte material;

[0015] The fourth structure includes: the inner wall of the second recessed portion is an arc surface.

[0016] Furthermore, the first hole is opened on the second planar surface; there are multiple first planar surfaces, and the multiple first planar surfaces are sequentially arranged along the edge of the second planar surface.

[0017] Furthermore, there are multiple second recessed portions, and the multiple second recessed portions are arranged on the cross bar at intervals around the cross bar.

[0018] Furthermore, the crossbar is in the shape of a polygonal prism.

[0019] Furthermore, the second hole includes: a first sub-hole connected to the first hole and a second sub-hole connected to the external space; the cross rod has a first rod portion inserted in the first hole and a second rod portion inserted in the second sub-hole; the second rod portion is a polygonal prism; the shape of the second sub-hole is adapted to the second rod portion.

[0020] Furthermore, a limiting platform is provided on the first rod portion; the limiting platform is located in the first hole, and the limiting platform is located on the movement path of the screw when it is pulled out of the first hole; and / or

[0021] The aperture of the first sub-pore is smaller than the aperture of the second sub-pore.

[0022] Furthermore, the limiting platform is located radially outside the first sub-hole; a clearance groove is provided on the first rod portion; the limiting platform can be deformed toward the inside of the clearance groove to enter the radial inside of the first sub-hole; and / or

[0023] The limiting platform has a tapered guiding surface for guiding the limiting platform to pass through the first sub-hole from the second sub-hole.

[0024] The beneficial effects of the scanning assembly provided by the present invention are as follows: compared with the prior art, the scanning assembly provided by the present invention has a first hole on the scanning rod, the screw can be inserted into the first hole, and the scanning rod can be fixed to the external implant (or replacement) by the screw; the scanning rod has a first mark, and the external scanner can know the position of the scanning rod through the first mark; the scanning rod has a second hole, and one end of the cross bar is detachably inserted into the second hole, which makes it very convenient to install or remove the cross bar; the cross bar has a second mark, and the external scanner can know the position of the cross bar through the second mark; that is, the scanner can be positioned by the scanning rod, and the scanner can also be positioned by the cross bar. The cross bar can provide more positioning points for the space outside the scanning rod, and no longer relies entirely on the first mark on the scanning rod for positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 A three-dimensional schematic diagram of a scanning assembly provided in an embodiment of the present utility model;

[0027] Figure 2 A schematic top view of a scanning assembly provided in an embodiment of the present utility model;

[0028] Figure 3 for Figure 2 Middle AA section;

[0029] Figure 4 A schematic front view of a scanning assembly provided in an embodiment of the present invention;

[0030] Figure 5 for Figure 4 mid-BB profile;

[0031] Figure 6 A schematic diagram of the combination of an implant and a screw provided in an embodiment of the present utility model;

[0032] Figure 7 A three-dimensional schematic diagram of a screw provided in an embodiment of the utility model;

[0033] Figure 8 A three-dimensional schematic diagram of a scanning rod provided in an embodiment of the present utility model Figure 1 ;

[0034] Figure 9 A three-dimensional schematic diagram of a scanning rod provided in an embodiment of the present utility model Figure 2 ;

[0035] Figure 10 A schematic diagram of the cooperation between the scanning rod and the crossbar provided in an embodiment of the present utility model;

[0036] Figure 11 A three-dimensional schematic diagram of a cross bar provided in an embodiment of the present utility model.

[0037] Among them, the reference numerals in the figures are:

[0038] 1-scanning rod; 11-first hole; 12-second hole; 121-first sub-hole; 122-second sub-hole; 13-first mark; 131-first plane surface; 132-second plane surface; 133-first recessed portion; 14-intersection; 2-cross bar; 21-second mark; 22-first rod portion; 221-avoidance groove; 23-second rod portion; 24-limiting platform; 241-guide surface; 3-screw; 31-head; 32-rod body; 4-implant. DETAILED DESCRIPTION

[0039] It should be noted that the specific embodiments are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be noted that, in the description of the embodiments of this application, unless otherwise specified, " / " represents the meaning of "or". For example, A / B can represent A or B. "And / or" in this article is only a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0041] 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” or “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element. 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.

[0042] It should be noted that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0043] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0044] It should be noted that the term "plurality" means two or more, unless otherwise clearly defined.

[0045] Please also refer to Figures 1 to 11 The scanning assembly provided by the present invention is now described. The scanning assembly includes: a scanning rod 1, a screw 3 for fixing to an implant 4 (in one embodiment, the screw 3 can be directly fixed to the implant 4, or the screw 3 can be indirectly fixed to the implant 4), and a crossbar 2; the scanning rod 1 is provided with a first hole 11, into which the screw 3 is inserted; the scanning rod 1 is provided with a second hole 12, into which one end of the crossbar 2 is detachably inserted; the scanning rod 1 has a first mark 13 for acquisition by a scanner, and the outer surface of the crossbar 2 has a second mark 21 for acquisition by a scanner.

[0046] In this way, a first hole 11 is opened on the scanning rod 1, and the screw 3 can be inserted into the first hole 11, and the scanning rod 1 can be fixed to the external implant 4 (or substitute) by the screw 3; a first mark 13 is provided on the scanning rod 1, and an external scanner can know the position of the scanning rod 1 through the first mark 13; a second hole 12 is provided on the scanning rod 1, and one end of the cross bar 2 is detachably inserted into the second hole 12, which makes it very convenient to install or remove the cross bar 2; a second mark 21 is provided on the cross bar 2, and an external scanner can know the position of the cross bar 2 through the second mark 21; that is, the scanner can be positioned by the scanning rod 1, and the scanner can also be positioned by the cross bar 2. The cross bar 2 can provide more positioning points for the space outside the scanning rod 1, and no longer relies entirely on the first mark 13 on the scanning rod 1 for positioning.

[0047] In one embodiment, the scanner is the scanner in CN105287039A. In one embodiment, the scanner is the laser rangefinder in CN116698360A.

[0048] Among them, regarding the substitute: an object that can replace the implant 4 and be fixed by the screw 3.

[0049] In one embodiment, the scanning assembly is used as follows: [1] an implant 4 is set on the edentulous jaw and connected to a restoration base; [2] different scanning rods 1 are set on each base, and according to the oral condition, adjacent scanning rods 1 are set with cross bars 2 of different shapes at a distance less than the effective width of a single scan of the scanning head; [3] the oral image is scanned to obtain scanning data, and the rod 1 is scanned first, and then the mesiodistal and mesiolateral portions of the adjacent teeth are scanned after completion, and then the dental arch is scanned; [4] the obtained scanning data is aligned with the STL file produced by the complete engineering drawing in the database to obtain accurate implant 4 data, including orientation and height.

[0050] In one embodiment, the implant 4 can refer to (China Utility Model Patent; Publication No.: CN220109870U; Subject Name: A Space-avoiding Structure, Implant, and Dental Implant Device; Publication Date: 2023-12-01). In one embodiment, the screw 3 is threadedly connected to the threaded hole on the implant 4.

[0051] In one embodiment, the screw 3 includes a head 31 and a rod 32. In one embodiment, one end of the first hole 11 allows the head 31 and the rod 32 to pass through, and the other end of the first hole 11 allows only the rod 32 to pass through.

[0052] Further, see Figures 1 to 11 As a specific embodiment of the scanning assembly provided by the present invention, there are multiple scanning rods 1, multiple cross rods 2, and multiple screws 3; the multiple scanning rods 1, multiple cross rods 2, and multiple screws 3 correspond to each other. In this way, the multiple scanning rods 1 and multiple cross rods 2 can be positioned in multiple positions.

[0053] Further, see Figures 1 to 11 As a specific embodiment of the scanning assembly provided by the present invention, the first marking 13 includes any one or more of a first planar surface 131 located on the surface of the scanning rod 1, a second planar surface 132 located on the surface of the scanning rod 1, and a first recessed portion 133 located on the surface of the scanning rod 1. This allows the scanner to use any one of the first planar surface 131, the second planar surface 132, or the first recessed portion 133 as a positioning reference. Furthermore, machining the first planar surface 131, the second planar surface 132, or the first recessed portion 133 is very convenient.

[0054] In one embodiment, the second mark 21 is a second recessed portion provided on the surface of the crossbar 2. Thus, the scanner can locate the position of the crossbar 2 by scanning the second recessed portion.

[0055] Further, see Figures 1 to 11 As a specific embodiment of the scanning component provided by the present invention, it also includes: any one or more of the first structure, the second structure, the third structure, and the fourth structure.

[0056] In one embodiment, the first structure includes: the first planar surface 131 and the second planar surface 132 are arranged perpendicular to each other. In this way, when the scanner scans the first planar surface 131 and the second planar surface 132, it can locate the two perpendicular plane directions.

[0057] In one embodiment, the second structure includes: a first planar surface 131 and a second planar surface 132 connected to each other to form an intersection 14, and a first recessed portion 133 located on the intersection 14. In this way, when the first recessed portion 133 is scanned, the intersection position of the first planar surface 131 and the second planar surface 132 can be determined.

[0058] In one embodiment, the third structure includes: the crossbar 2 is a one-piece piece made of PEEK (PEEK: polyetheretherketone) matte material, so that sandblasting is not required.

[0059] In one embodiment, the fourth structure includes: the inner wall of the second recessed portion is an arc surface, so as to facilitate positioning.

[0060] Further, see Figures 1 to 11 As a specific embodiment of the scanning component provided by the present invention, the first hole 11 is opened on the second plane surface 132; the number of the first plane surfaces 131 is multiple, and the multiple first plane surfaces 131 are arranged in sequence along the edge of the second plane surface 132.

[0061] Further, see Figures 1 to 11 As a specific embodiment of the scanning assembly provided by the present invention, there are multiple second recessed portions, and the multiple second recessed portions are arranged around and spaced on the crossbar 2. In this way, the scanner can determine different positions on the crossbar 2 by scanning the multiple second recessed portions.

[0062] Further, see Figures 1 to 11 As a specific embodiment of the scanning assembly provided by the present invention, the crossbar 2 is in the shape of a polygonal prism, thereby improving recognition.

[0063] In one embodiment, the cross section of the crossbar 2 is any one of a quadrilateral, a hexagon and an octagon.

[0064] Further, see Figures 1 to 11In one embodiment of the scanning assembly provided by the present invention, the second hole 12 includes a first sub-hole 121 communicating with the first hole 11 and a second sub-hole 122 communicating with the outside space. The crossbar 2 includes a first rod portion 22 inserted into the first hole 11 and a second rod portion 23 inserted into the second sub-hole 122. The second rod portion 23 is in the shape of a polygonal prism, and the shape of the second sub-hole 122 is adapted to the second rod portion 23. As such, when the polygonal prism-shaped second rod portion 23 is inserted into the second sub-hole 122, the second rod portion 23 cannot rotate relative to the scanning rod 1, thereby improving the stability of the crossbar 2 in maintaining its relative position to the scanning rod 1.

[0065] In one embodiment, the cross section of the second rod portion 23 is a rectangle. In one embodiment, the cross section of the second rod portion 23 is a rounded rectangle.

[0066] Further, see Figures 1 to 11 As a specific embodiment of the scanning assembly provided by the present invention, a limit plate 24 is provided on the first rod portion 22; the limit plate 24 is located in the first hole 11 and on the movement path of the screw 3 when it is pulled out of the first hole 11. In this way, the limit plate 24 can prevent the screw 3 from being pulled out of the first sub-hole 121.

[0067] In one embodiment, the diameter of the first sub-hole 121 is smaller than the diameter of the second sub-hole 122 , so as to prevent the second rod portion 23 from passing through the first sub-hole 121 .

[0068] In one embodiment, the first rod portion 22 and the limiting platform 24 form a step-like shape and are hooked (or buckled) on the inner wall of the first hole 11 .

[0069] Further, see Figures 1 to 11 As a specific embodiment of the scanning assembly provided by the present invention, the limiting platform 24 is located radially outside the first sub-hole 121; a clearance groove 221 is formed on the first rod portion 22; the limiting platform 24 can be deformed toward the inside of the clearance groove 221 to enter the radial inside of the first sub-hole 121. In this way, the limiting platform 24 is located radially outside the first sub-hole 121. When the crossbar 2 is pulled out of the first sub-hole 121, the limiting platform 24 can prevent the crossbar 2 from being pulled out of the first sub-hole 121; when the limiting platform 24 is deformed into the clearance groove 221 and enters the radial inside of the first sub-hole 121, the deformed limiting platform 24 can be pulled out of the first sub-hole 121 to separate the crossbar 2 from the scanning rod 1.

[0070] In one embodiment, the limiting platform 24 has a tapered guide surface 241 for guiding the limiting platform 24 to pass through the first sub-hole 121 from the second sub-hole 122. Thus, under the guidance of the guide surface 241, the limiting platform 24 can easily pass through the first sub-hole 121.

[0071] In one embodiment, a cross section of the first sub-hole 121 is smaller than a cross section of the second sub-hole 122 .

[0072] In one embodiment, the second hole 12 extends in a straight line. In one embodiment, on a projection plane perpendicular to the extending direction of the second hole 12 , the projection of the first sub-hole 121 is located inside the projection of the second sub-hole 122 .

[0073] In one embodiment, the first sub-hole 121 is a circular hole.

[0074] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A scanning component, characterized in that: include: A scanning rod, a screw for directly or indirectly fixing to an implant, and a cross rod; the scanning rod is provided with a first hole, the screw is inserted into the first hole; the scanning rod is provided with a second hole, one end of the cross rod is detachably inserted into the second hole; the scanning rod has a first mark for acquisition by a scanner, and the outer surface of the cross rod has a second mark for acquisition by a scanner.

2. The scanning assembly according to claim 1, wherein: There are multiple scanning rods, multiple cross rods, and multiple screws; the multiple scanning rods, multiple cross rods, and multiple screws correspond to each other one by one.

3. The scanning assembly according to claim 1, wherein: The first mark includes any one or more of: a first planar surface located on the surface of the scanning rod, a second planar surface located on the surface of the scanning rod, and a first recessed portion located on the surface of the scanning rod; and / or The second mark is a second recessed portion provided on the surface of the crossbar.

4. The scanning assembly according to claim 3, wherein: Also includes: Any one or more of the first structure, the second structure, the third structure, and the fourth structure; The first structure includes: the first planar surface and the second planar surface are arranged perpendicularly; The second structure includes: the first planar surface and the second planar surface are connected to each other to form an intersection, and the first recessed portion is located on the intersection; The third structure includes: the crossbar is an integral piece made of PEEK matte material; The fourth structure includes: the inner wall of the second recessed portion is an arc surface.

5. The scanning assembly according to claim 3, wherein: The first hole is opened on the second plane surface; there are multiple first plane surfaces, and the multiple first plane surfaces are sequentially arranged along the edge of the second plane surface.

6. The scanning assembly according to claim 3, wherein: There are multiple second recessed portions, and the multiple second recessed portions are arranged on the crossbar at intervals around the crossbar.

7. The scanning assembly according to claim 1, wherein: The crossbar is in the shape of a polygonal prism.

8. The scanning assembly according to any one of claims 1 to 7, wherein: The second hole includes: a first sub-hole connected to the first hole and a second sub-hole connected to the external space; the cross rod has a first rod portion inserted in the first hole and a second rod portion inserted in the second sub-hole; the second rod portion is a polygonal prism; the shape of the second sub-hole is adapted to the second rod portion.

9. The scanning assembly according to claim 8, wherein: A limiting platform is provided on the first rod portion; the limiting platform is located in the first hole, and the limiting platform is located on the movement path of the screw when it is pulled out of the first hole; and / or The aperture of the first sub-pore is smaller than the aperture of the second sub-pore.

10. The scanning assembly according to claim 9, wherein: The limiting platform is located radially outside the first sub-hole; a clearance groove is provided on the first rod portion; the limiting platform can be deformed toward the inside of the clearance groove to enter the radial inside of the first sub-hole; and / or The limiting platform has a tapered guiding surface for guiding the limiting platform to pass through the first sub-hole from the second sub-hole.

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