Half-cutting jig

Abstract

The utility model discloses a half-cutting jig, which is used for assisting in measuring a fit clearance between an implant and an implant abutment, and comprises a base, a first side surface of the base is provided with a plurality of filling grooves; a transition step is arranged in the filling groove, and a positioning groove used for fixing an assembly sample is formed in the surface of the transition step. According to the technology, the filling groove is formed in the first side face of the base, the multiple positioning grooves are formed in the filling groove, the assembly body samples are fixed in the positioning grooves, the filling groove is filled with the resin, and after the resin is dried, grooving machining is conducted on the second side face of the base through the CNC lathe machining technology in a mirror face machining mode; the grooving depth is set in advance, the second groove is formed, so that the assembly sample is cut along the central axis of the assembly sample, the measurement error of the fit clearance between the implant and the implant abutment is reduced, the step of grinding and polishing the cut section in the later period is omitted through the mirror finishing mode, and the working efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially relates to a half split fixture. BACKGROUND

[0002] Oral implant application technology is the most important part in modern oral implantology, and the wide application of oral implant dentures effectively solves the problems caused by tooth loss in clinical practice. In the field of oral medicine, such as Figure 1 As shown in the figure, the dental implant is generally composed of an implant 51, a central bolt 53, an implant abutment 52, and a crown (not shown in the figure). The implant 51 is usually made of titanium or titanium alloy, has good biocompatibility, and can form a stable combination with human bone. The implant 51 is implanted into the alveolar bone of the patient, and the end of the implant 51 is used to connect the implant abutment. The implant abutment 52 is connected to the end of the implant 51. The crown is a constituent element of the artificial tooth shape, and the crown is connected to the implant abutment 52. The central bolt 53 is used to connect the implant 51 and the implant abutment 52. When manufacturing the dental implant, factors such as the structure of the implant abutment 52 and the connection method of the implant abutment 52 and the implant 51 must be considered. In oral clinical medicine, dental implant technology refers to implanting an implant into the upper and lower jaw bones of the oral cavity where the teeth are missing through surgical operation. After the wound heals, the implant abutment is assembled with the implant, and the central bolt is fixed. Then the crown is installed on the implant abutment. The implant and the implant abutment are the key parts of dental implant technology, and play an important role in fixing the whole tooth. Among them, the long-term stability of the connection between the implant and the connected components plays a key role in the success of the repair and treatment of the dental implant. In particular, the cooperation gap between the implant and the implant abutment has an important influence on the stability and durability of the dental implant.

[0003] Specifically, the central bolt 53 is built into the implant 51 and the implant abutment 52, and the implant abutment 52 is taperedly sealed with the implant 51. The inside is threadedly connected by the central bolt 53. This connection method may not be tight, resulting in a gap between the implant abutment 52 and the implant 51. The medical industry standard YY 0315-2023 "Titanium and Titanium Alloy Implant" requires that the cooperation gap of the implant and the implant abutment be measured to ensure stable connection without excessive wear or leakage. The measurement method of the cooperation gap of the implant and the implant abutment is described: after resin embedding, cutting, polishing and polishing of the assembled implant and implant abutment, the optical measuring instrument is used for measurement.

[0004] In the related art, the assembly sample of the implant and the implant abutment is placed in a container (more commonly, a bottle cap), resin is injected into the inside of the container, the assembly sample is cut along the central axis of the assembly sample after the resin is solidified, then the cut section is polished and placed under an optical measuring instrument to measure the fit clearance between the implant and the implant abutment. In the related art, when the assembly sample is placed in the container, it cannot be guaranteed that the assembly sample is placed flat and not tilted, the cutting of the assembly sample is entirely dependent on the experience and skill of the technician, and the assembly sample is not easy to place during cutting, and it cannot be guaranteed that the cutting is exactly on the central axis of the assembly sample, thereby causing errors in the measurement of the fit clearance between the implant and the implant abutment. Utility model content

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a half-section jig for assisting in measuring the fit clearance of an assembly sample, so as to realize cutting of the assembly sample along the cutting line of the central axis of the assembly sample and reduce the measurement error of the fit clearance between the implant and the implant abutment.

[0006] The utility model discloses a half-section jig, which comprises a base, a plurality of filling grooves are formed in the first side surface of the base, a transition step is arranged in the filling groove, and a positioning groove for fixing the assembly sample is arranged on the surface of the transition step.

[0007] One side of the transition step abuts against the groove wall of the filling groove, and a reserved space is arranged between the other side of the transition step and the groove wall of the filling groove.

[0008] The base is a cubic base.

[0009] The number of the filling grooves is multiple, the number of the positioning grooves is multiple, the multiple positioning grooves are arranged in parallel, and a spacing is arranged between the multiple positioning grooves.

[0010] The positioning groove comprises a limiting groove and a clearance groove, the clearance groove is arranged at the end of the limiting groove, the width of the clearance groove is greater than the width of the limiting groove, and the depth of the clearance groove is greater than the depth of the limiting groove.

[0011] The depth of the limiting groove is defined as H3, the assembly height of the assembly sample is H1, and the relationship H3 >= H1 / 2 is satisfied, and the width of the limiting groove is matched with the width of the assembly sample.

[0012] The depth of the filling groove is defined as H2, the assembly height of the assembly sample is H1, and the relationship H2 = 2.4*H1 is satisfied.

[0013] A positioning point is arranged on the second side surface of the base, and the first side surface and the second side surface are arranged opposite to each other.

[0014] The third side of the half-split jig is further provided with a positioning hole, and the third side is vertically arranged with the first side and the second side.

[0015] The utility model discloses a kind of half-split jigs for assisting measurement of the cooperation gap of implant and implant abutment, comprising: pedestal, first side of pedestal is equipped with several filling grooves;Transition step is provided in filling groove, and the surface of transition step is provided with the positioning groove for fixing assembly sample.The technology in this technique, by setting filling groove in the first side of pedestal, and setting multiple positioning grooves in filling groove, assembly sample is fixed in positioning groove, fill resin into filling groove, after resin drying, the second side of pedestal is processed and grooved by CNC (Computerized Numerical Control, computer numerical control) lathe processing technology, using mirror surface processing mode, second groove is set by pre-setting groove depth to realize the cutting line along the central axis of assembly sample and cut assembly sample, reduce the measurement error of the cooperation gap of implant and implant abutment. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present utility model, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present utility model, and for those skilled in the art, other drawings can also be obtained without innovative labor on the basis of these drawings.

[0017] Figure 1 The cross-sectional view of the assembly sample of the implant, central bolt and implant abutment disclosed in the embodiments of the present utility model is disclosed.

[0018] Figure 2 The structure diagram of the half-split jig disclosed in the embodiments of the present utility model under the first visual angle is disclosed.

[0019] Figure 3 The structure diagram of the half-split jig disclosed in the embodiments of the present utility model under the second visual angle is disclosed.

[0020] Figure 4 The structure diagram of the half-split jig disclosed in the embodiments of the present utility model under the second visual angle is disclosed. Figure 2 The structure enlarged view of part A in the middle is disclosed.

[0021] Figure 5 The cross-sectional view of the half-split jig at assembly sample disclosed in the embodiments of the present utility model is disclosed.

[0022] Reference signs:

[0023] 1, base; 11, first side; 12, second side; 13, third side; 2, filling groove; 3, transition step; 31, reserved space; 4, positioning groove; 41, limiting groove; 42, clearance groove; 5, assembly sample; 51, implant; 52, implant abutment; 53, central bolt; 6, positioning hole; DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] It should be understood that the terms "comprising" and "including" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0026] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should be further understood that the terms "and / or" as used in the present application specification and the appended claims mean one or more of the associated listed items and all possible combinations thereof.

[0028] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0029] The implant 51, the central bolt 53, and the implant abutment 52 are combined to form the assembly sample 5. Specifically, the implant abutment 52 further includes a straight / angle composite abutment, a bridge screw, and a titanium base. Please refer to Figure 1As shown in FIG. 1, a cross-sectional view of the assembly body sample 5, the mating clearance between the implant 51, the central bolt 53 and the implant abutment 52 is measured by optical instruments, and if the assembly clearance meets the technical requirements, it is qualified, which requires that the cross-section should be aligned with the central axis of the assembly body sample 5, otherwise the measurement of the mating clearance will be inaccurate. The semi-section jig disclosed in the present application can assist in cutting the assembly body sample 5 along the central axis of the assembly body sample 5.

[0030] A semi-section jig, as shown in FIG. 1, comprises a base 1, a first side 11 of the base 1 is provided with a plurality of filling grooves 2 for filling resin; a transition step 3 is arranged in the filling groove 2, and the surface of the transition step 3 is provided with a positioning groove 4 for fixing the assembly body sample 5. Figures 2-4

[0031] The other side of the transition step 3 is provided with a reserved space 31 between the groove wall of the filling groove 2, and the assembly body sample 5 comprises an implant 51, an implant abutment 52 and a central bolt 53, the implant 51 and the implant abutment 52 are connected by the central bolt 53, when the implant 51 is placed in the positioning groove 4, the implant abutment 52 is placed in the reserved space 31, and there is a clearance space between the implant abutment 52 and the bottom surface of the filling groove 2, which facilitates the installation of the assembly body sample 5 and reserves space for resin filling.

[0032] The base 1 is a cubic base, which is convenient for cutting and processing.

[0033] The number of filling grooves 2 is multiple, and the number of positioning grooves 4 is multiple, by arranging multiple positioning grooves 4, multiple assembly body samples 5 can be processed at the same time, which greatly improves the processing efficiency, in the present embodiment, the number of filling grooves 2 is 2, and the number of positioning grooves 4 in each filling groove 2 is 5, which can realize the processing of 10 assembly body samples 5 at the same time, the multiple positioning grooves 4 are arranged in parallel, which is convenient for later jig cutting and mating clearance measurement; the multiple positioning grooves 4 are provided with a spacing, which is convenient for later cutting and processing of resin blocks.

[0034] The positioning groove 4 comprises a limiting groove 41 and an avoidance groove 42, the avoidance groove 42 is arranged at the end of the limiting groove 41, the width of the avoidance groove 42 is greater than the width of the limiting groove 41, and the depth of the avoidance groove 42 is greater than the depth of the limiting groove 41, when the assembly body sample 5 is fixed in the positioning groove 4, the implant 51 is placed in the limiting groove 41, the end of the implant 51 is placed in the avoidance groove 42, and the implant abutment 52 is placed in the reserved space 31, because the size of the avoidance groove 42 is wider than that of the limiting groove 41, the end of the implant 51 can be fully wrapped when the resin is filled.

[0035] Please refer to Figure 5 ​The depth of the limiting groove 41 is defined as H3, the assembly height of the assembly sample 5 is H1, and the relationship H3≥H1 / 2 is met, so that at least half of the implant 51 is placed in the limiting groove 41, so that the implant 51 is fully clamped with the limiting groove 41. The width of the limiting groove 41 is matched with the width of the assembly sample 5, specifically, the width of the limiting groove 41 is matched with the width of the implant 51, so that the implant 51 can be clamped in the limiting groove 41. Before filling the resin, glue is injected between the implant 51 and the limiting groove 41 to preliminarily fix the implant 51 and the limiting groove 41. After the glue solidifies, the resin is filled. In this way, the position of the implant 51 can be effectively prevented from moving during filling of the resin.

[0036] The height of the transition step 3 is defined as H4, and the relationship H4≥2H1 / 3 is met, so that the implant abutment 52 has a clearance space between the bottom surface of the filling groove 2.

[0037] The depth of the filling groove 2 is defined as H2, the assembly height of the assembly sample 5 is H1, and the relationship H2=2.4*H1 is met. Specifically, the depth of the filling groove 2 should be greater than the size of the implant 51, so that the assembly sample 5 can be fully embedded during resin filling.

[0038] The second side 12 of the base 1 is provided with a positioning point, the first side 11 and the second side 12 are oppositely arranged, the positioning point is arranged at a position close to the edge of the base 1 on the second side 12. Specifically, the second side 12 is CNC grooving machined from the positioning point, a second groove is formed by pre-setting the grooving depth, the depth of the second groove is H4, so as to cut the assembly sample 5 along the central axis of the assembly sample 5. The height of the base is defined as H, H=2.5*H2, and the relationship H4=H-H2 should be met. In the specific implementation process, 0.1mm allowance can be reserved for manual polishing and polishing when the second groove is formed, or CNC mirror surface machining can be directly used for machining.

[0039] The third side 13 of the half-split jig is also provided with a positioning hole 6. Specifically, the third side 13 is perpendicularly arranged with the first side 11 and the second side 12, and is used for connecting the jig positioning on the machine. The half-split jig is locked on the machine jig by screws and CNC machined.

[0040] In specific embodiments, the semi-split jig is applied to measure the fit clearance of the tapered sealing part of the implant 51 and the implant abutment 52, and the measurement method of the fit clearance comprises the following steps: placing a plurality of assembly body samples 5 in the positioning groove 4, adjusting the central axis of the assembly body sample 5 to be parallel to the positioning groove 4 and clamping; applying glue between the assembly body sample 5 and the positioning groove 4 for preliminary fixation, so as to avoid position movement of the implant 51 during filling of the resin; filling the resin into the filling groove 2; after the resin is dried, the second groove is processed on the second side 12 of the semi-split jig by using the mirror surface processing mode of the CNC lathe processing technology, so as to cut the assembly body sample 5 along the central axis of the assembly body sample 5; the mirror surface processing mode can save the polishing process in the later stage, and the operation efficiency is improved; the resin block embedding a plurality of assembly body samples 5 is cut into small resin blocks, so that each small resin block contains only one assembly body sample 5, so as to facilitate the optical instrument measurement in the next step; and the fit clearance of the tapered sealing part of the section of the implant 51 and the implant abutment 52 in the small resin block is measured by using the optical instrument.

[0041] The semi-split jig disclosed by the utility model is used for assisting in measuring the fit clearance of the implant and the implant abutment, comprising: a base, a plurality of filling grooves are formed in the first side of the base; a transition step is arranged in the filling groove, and a positioning groove for fixing the assembly body sample is arranged on the surface of the transition step. In the technology, the filling grooves are arranged on the first side of the base, and a plurality of positioning grooves are arranged in the filling grooves, the assembly body sample is fixed in the positioning groove, the resin is filled into the filling groove, after the resin is dried, the second side of the base is processed by using the mirror surface processing mode of the CNC lathe processing technology, the second groove is formed by pre-setting the groove depth, so as to cut the assembly body sample along the central axis of the assembly body sample, the measurement error of the fit clearance of the implant and the implant abutment is reduced, the mirror surface processing mode saves the polishing step of the cut section in the later stage, and the operation efficiency is effectively improved.

[0042] The above is only a specific embodiment of the application, but the protection scope of the application is not limited to this, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the application, and these modifications or replacements should be covered in the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A half-split fixture, characterized by, The utility model relates to a half section tool for assembling body sample, including: The first side of base is equipped with filling groove, the transition step is equipped in the filling groove, the surface of transition step is equipped with the positioning recess for fixing assembly body sample.

2. The half-split fixture of claim 1, wherein, The side of transition step is in contact with the groove wall of filling groove, and the other side of transition step is equipped with the reserved space between the groove wall of filling groove.

3. The half-split fixture of claim 1, wherein, The base is cubic base.

4. The half-split fixture of claim 1, wherein, The number of filling groove is multiple, the number of positioning recess is multiple, multiple positioning recesses are parallelly arranged and are equipped with spacing between multiple positioning recesses.

5. The half-split fixture of claim 4, wherein, The positioning recess includes: limiting groove, clearance groove, the clearance groove is arranged at the end of limiting groove, the width of clearance groove is greater than the width of limiting groove, and the depth of clearance groove is greater than the depth of limiting groove.

6. The half-split fixture of claim 5, wherein, The depth of limiting groove is defined as H3, the assembly height of assembly body sample is H1, satisfies the relation H3 greater than or equal to H1 / 2, and the width of limiting groove is adapted to the width of assembly body sample.

7. The half-split fixture of claim 4, wherein, The depth of filling groove is defined as H2, the assembly height of assembly body sample is H1, satisfies the relation H2=2.4*H1.

8. The half-split fixture of claim 1, wherein, The second side of base is equipped with positioning point, and the first side is opposite to the second side.

9. The half-split fixture of claim 8, wherein, The third side of half section tool is also equipped with positioning hole, and the third side is perpendicular to the first side and the second side respectively.

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