Bone harvesting guide plate

Abstract

This utility model relates to the field of guide plate technology and discloses a bone harvesting guide plate, including a dental crown and a bone harvesting part, which are detachably connected to the dental crown. The dental crown has several connecting posts, each with a connecting sleeve. The bone harvesting part has connecting rings corresponding to each connecting sleeve, and a connecting member is provided between each connecting ring and connecting sleeve for fixing the two together. This technical solution solves the problem in the prior art where remanufacturing a bone harvesting guide plate when there is a large deviation is not only costly but also prolongs the manufacturing cycle.

Description

Technical Field

[0001] This utility model relates to the field of guide plate technology, and in particular to bone harvesting guide plates. Background Technology

[0002] A bone harvesting guide plate is a surgical aid used in oral implant surgery to accurately obtain autologous bone fragments.

[0003] Most existing bone harvesting guides are one-piece designs, mainly consisting of a dental brace to fit the human teeth and a bone harvesting section to indicate the bone harvesting location.

[0004] However, existing bone harvesting guides, especially those that fit with human teeth, are often affected by factors such as the scanning accuracy of the tooth surface and the printing accuracy. Without a trial fitting, it is difficult to ensure that the guide fits the teeth perfectly, which can lead to misalignment of the bone harvesting part that is integrally formed with the guide. This can cause the area where the autologous bone is harvested to deviate from the intended area. If the error is serious, the surgery needs to be postponed and the scan and design need to be re-scanned. Furthermore, because the guide and the bone harvesting part are integrally formed, not only is the cost of remanufacturing high, but the manufacturing cycle and treatment cycle are also extended. Utility Model Content

[0005] The main purpose of this utility model is to provide a bone harvesting guide plate, which aims to solve the problem that in related technologies, when the bone harvesting guide plate has a large deviation, remaking the bone harvesting guide plate is not only costly, but also prolongs the production cycle.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] The bone harvesting guide plate includes a dental crown and a bone harvesting part, wherein the bone harvesting part is detachably connected to the dental crown; the dental crown is provided with a plurality of connecting posts, each of the connecting posts being provided with a connecting sleeve; the bone harvesting part is provided with a connecting ring corresponding to each connecting sleeve; and each connecting ring and connecting sleeve is provided with a connecting member for fixing the two together.

[0008] Furthermore, all edges of the dental brace and the bone harvesting area are arc-shaped structures.

[0009] Furthermore, the connecting ring is provided with a positioning ring, and the connecting sleeve is provided with a positioning hole, wherein the positioning ring and the positioning hole are fitted together.

[0010] Furthermore, the connecting ring is located above the connecting sleeve.

[0011] Furthermore, a first connecting rod is provided between adjacent connecting sleeves, and a second connecting rod is provided between adjacent connecting rings. The projection plane of the first connecting rod in the axial direction of the connecting ring coincides with the projection plane of the second connecting rod in the axial direction of the connecting ring.

[0012] Furthermore, an abutment block is provided between the first connecting rod and the second connecting rod.

[0013] Furthermore, the abutment blocks are provided in a plurality of manner, and each abutment block is distributed sequentially along the outline of the first connecting rod or the second connecting rod.

[0014] Furthermore, the bone-harvesting part abuts against the connecting sleeve.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] This utility model's technical solution employs a design that separates the dental brace and the bone harvesting part from the traditional bone harvesting guide plate. This allows patients to try on the dental brace first to ensure it fits precisely to their teeth before attaching the bone harvesting part to it, thus ensuring the accuracy of the bone harvesting part's markings.

[0017] Specifically, the dental brace is equipped with several connecting posts, each of which has a connecting sleeve. The bone harvesting part is equipped with connecting rings that correspond one-to-one with each connecting sleeve. Each connecting ring and the connecting sleeve is equipped with a connector for fixing the two together. That is, each connecting sleeve and each connecting ring are coaxially arranged, and connectors are inserted into the connecting sleeve and each connecting ring to achieve a fixed connection between the two.

[0018] In this way, even if a large deviation is found between the braces and the patient's teeth, only the braces need to be remade. Compared with remaking the entire bone harvesting guide plate, this effectively reduces the time and cost of remaking and minimizes the impact on the treatment cycle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0021] Figure 2 for Figure 1 The main view;

[0022] Figure 3 This is an exploded view of the embodiment without the connectors.

[0023] Explanation of icon numbers:

[0024] 1. Bracket; 11. Connecting post; 12. Connecting sleeve; 13. Positioning hole; 14. First connecting rod; 2. Bone harvesting part; 21. Connecting ring; 22. Positioning ring; 23. Second connecting rod; 3. Connector; 4. Abutment block.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of 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 not intended to limit the scope of this application.

[0027] like Figures 1-3 As shown in the figure, this embodiment proposes a bone harvesting guide plate, which mainly includes a dental crown 1 and a bone harvesting part 2. The bone harvesting part 2 and the dental crown 1 are detachably connected, that is, the traditional bone harvesting guide plate is designed to be separate. In this way, even if there is a large deviation between the dental crown 1 and the patient's teeth, only the dental crown 1 needs to be remade. Compared with remaking the entire bone harvesting guide plate, the cost and time of remaking are effectively reduced, thereby reducing the impact on the treatment cycle.

[0028] Specifically, the dental brace 1 has several connecting posts 11, each with a connecting sleeve 12. The dental brace 1, the connecting posts 11, and the connecting sleeves 12 are integrally formed to ensure the structural stability of the dental brace 1. The bone harvesting section 2 has connecting rings 21 corresponding to each connecting sleeve 12. Each connecting ring 21 and connecting sleeve 12 is connected by a connector 3. After confirming that the dental brace 1 fits the patient's teeth, the bone harvesting section 2 and the dental brace 1 are fixed by coaxially aligning each connecting ring 21 and each connecting sleeve 12 and inserting the connector 3 between them. Preferably, the connector 3 is a threaded component such as a bolt. The bone harvesting section 2 and the dental brace 1 are fixed by the threaded connection of the connector 3 between the connecting rings 21 and the connecting sleeves 12, ensuring both reliable connection and ease of assembly and disassembly.

[0029] All edges of the braces 1 and the bone harvesting portion 2 are curved to avoid sharp corners on the braces 1 and the bone harvesting portion 2, thereby reducing the risk of scratching the patient's oral cavity in this embodiment.

[0030] The connecting ring 21 is provided with a positioning ring 22, which is integrally formed with the connecting ring 21 to ensure the connection stability and strength between the two. Correspondingly, the connecting sleeve 12 is provided with a positioning hole 13, and the positioning ring 22 and the positioning hole 13 are fitted together to constrain the positional relationship between the dental crown 1 and the bone harvesting part 2, so as to avoid the bone harvesting part 2 from slipping during the installation of the connector 3, thereby improving the installation efficiency of this embodiment and thus improving the surgical efficiency. In addition, the thread feature in the inner ring of the connecting ring 21 should extend into the positioning ring 22 to avoid the presence of the positioning ring 22 affecting the normal connection relationship between the connecting ring 21 and the connecting sleeve 12.

[0031] The connecting ring 21 is located above the connecting sleeve 12, which avoids the human oral cavity structure and the connecting sleeve 12 from obstructing the operator's (doctor's) line of sight, and makes it convenient for the operator to make the bone harvesting part 2 and the dental sleeve 1 cooperate with each other (the positioning ring 22 is embedded in the positioning hole 13), further improving the assembly and installation efficiency of this embodiment.

[0032] A first connecting rod 14 is provided between adjacent connecting sleeves 12, and a second connecting rod 23 is provided between adjacent connecting rings 21, so that multiple connecting sleeves 12 and multiple connecting rings 21 form a stable triangular or polygonal structure (similar to the principle of truss), which greatly improves the overall bending and torsional stiffness of the dental brace 1 and the bone harvesting part 2.

[0033] The projection surface of the first connecting rod 14 in the axial direction of the connecting ring 21 coincides with the projection surface of the second connecting rod 23 in the axial direction of the connecting ring 21. Thus, when installing the connector 3, the operator can use pliers to clamp the first connecting rod 14 and the second connecting rod 23 at the same time to facilitate the rotation of the connector 3, so that the connector 3 is threadedly connected to the connecting ring 21 and the connecting sleeve 12.

[0034] An abutment block 4 is provided between the first connecting rod 14 and the second connecting rod 23. With the presence of the abutment block 4, the first connecting rod 14 and the second connecting rod 23 are in an abutment relationship. Thus, when clamping the first connecting rod 14 and the second connecting rod 23, as long as the clamping point is located at the abutment point (abutment block 4) between the first connecting rod 14 and the second connecting rod 23, deformation of the first connecting rod 14 or the second connecting rod 23 due to excessive clamping force can be effectively prevented.

[0035] A plurality of abutment blocks 4 are provided, and each abutment block 4 is distributed sequentially along the outline of the first connecting rod 14 or the second connecting rod 23. In this way, the operator does not need to pay special attention to the clamping point, which further improves the assembly and installation efficiency of this embodiment.

[0036] The bone harvesting part 2 and the connecting sleeve 12 abut against each other. In this way, during the bone harvesting process, if the bone harvesting device accidentally touches the bone harvesting part 2 and the force transmitted to the bone harvesting part 2 can be distributed along the bone harvesting part 2 to the connecting sleeve 12 and even the entire dental crown 1. This helps to distribute the load evenly and thus reduces the risk of breakage or cracking during use of this embodiment.

[0037] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0038] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bone harvesting guide plate, comprising a dental crown (1) and a bone harvesting section (2), characterized in that, The bone harvesting part (2) is detachably connected to the dental crown (1); The dental brace (1) is provided with a plurality of connecting posts (11), and each of the connecting posts (11) is provided with a connecting sleeve (12). The bone harvesting part (2) is provided with a connecting ring (21) corresponding to each connecting sleeve (12). Each connecting ring (21) and the connecting sleeve (12) are provided with a connector (3) for fixing the two together.

2. The bone harvesting guide plate according to claim 1, characterized in that, The edges of the dental brace (1) and the bone harvesting part (2) are all arc-shaped structures.

3. The bone harvesting guide plate according to claim 1, characterized in that, The connecting ring (21) is provided with a positioning ring (22), and the connecting sleeve (12) is provided with a positioning hole (13). The positioning ring (22) and the positioning hole (13) are fitted together.

4. The bone harvesting guide plate according to claim 1 or 3, characterized in that, The connecting ring (21) is located above the connecting sleeve (12).

5. The bone harvesting guide plate according to claim 4, characterized in that, A first connecting rod (14) is provided between adjacent connecting sleeves (12), and a second connecting rod (23) is provided between adjacent connecting rings (21). The projection plane of the first connecting rod (14) in the axial direction of the connecting ring (21) coincides with the projection plane of the second connecting rod (23) in the axial direction of the connecting ring (21).

6. The bone harvesting guide plate according to claim 5, characterized in that, An abutment block (4) is provided between the first connecting rod (14) and the second connecting rod (23).

7. The bone harvesting guide plate according to claim 6, characterized in that, The abutting block (4) is provided in a plurality of such blocks, and each abutting block (4) is distributed sequentially along the outline of the first connecting rod (14) or the second connecting rod (23).

8. The bone harvesting guide plate according to claim 1, characterized in that, The bone harvesting part (2) abuts against the connecting sleeve (12).

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