Dental implant transfer bar

Abstract

The utility model discloses a dental implant transfer rod relates to transfer rod technical field, including the butt joint, the inside of this butt joint has a cavity of echelon, is equipped with the first connecting screw of connecting implant in the cavity inside, the one end of butt joint still is equipped with force application part with cooperation and installation, the one end fixed with gyroid of force application part away from butt joint, then the other end of gyroid is equipped with locking head, the inside structure of butt joint is unique, has a cavity of echelon, and such design aims at providing more stable connection and support. The inside of cavity is equipped with the first connecting screw, and the firm combination between implant and transfer rod is ensured, when using, first, the cross section end face of force application part along the axial direction is convex and is set, and such design helps better transmission of moment of force. Meanwhile, the one end of force application part and butt joint is equipped with external thread, and the cavity in butt joint is equipped with internal thread accordingly, and the two are closely matched, and the reliability of connection is ensured.

Description

Technical Field

[0001] This utility model specifically relates to the field of transfer rod technology, and more specifically to a dental implant transfer rod. Background Technology

[0002] The oral transfer rod is a specialized tool used in the dental implant restoration process to accurately transmit implant position information. Its core function is to "copy" the three-dimensional position of the implant in the oral cavity (including angle, depth, diameter, etc.) onto a model, providing a precise basis for the subsequent fabrication of abutments, crowns and other restorations. It is a key bridge connecting implant surgery and restoration technology.

[0003] Chinese patent application number 201720171274.6 provides a dental implant window-type transfer rod, which has a hole-finding and positioning part at the bottom and a manually rotating extension part at the top. There is an annular groove between the manually rotating extension part and the dental implant window-type transfer rod. The surface of the manually rotating extension part is provided with anti-slip texture, and the inside of the manually rotating extension part is provided with a screw drive groove. The outer surface of the dental implant window-type transfer rod is provided with a nano-silver antibacterial coating.

[0004] The transfer rod in the aforementioned patent is a straight rod type, which is inconvenient to connect to the implant. When taking oral impressions, silicone rubber impression material is applied to the gums and teeth. After the silicone rubber impression material has cured, the tray is removed.

[0005] The transfer rod is then removed while still embedded in the cured silicone rubber impression material. When the transfer rod comes loose, it cannot be removed properly, which can easily damage the silicone rubber impression material. Utility Model Content

[0006] The purpose of this invention is to provide a dental implant transfer rod that uses a rotating fastener to lock the locking head onto the tray, allowing the transfer rod to be easily removed when the tray is taken out; thus solving the technical problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A dental implant transfer rod includes a connector with a stepped cavity inside, and a first connecting screw for connecting the implant is provided inside the cavity; a force-applying part is also installed at one end of the connector; a rotating body is fixed at the end of the force-applying part away from the connector, and a locking head is provided at the other end of the rotating body; the locking head is rotatably connected to the rotating body.

[0009] As a further technical solution of this utility model, the end of the connector away from the force-applying part is set in a hemispherical shape.

[0010] As a further technical solution of this utility model, the cross-sectional end face of the force-applying part along the axial direction is convex, and the end connected to the connector is provided with an external thread, while the cavity inside the connector is provided with an internal thread.

[0011] As a further technical solution of this utility model, the end of the force-applying part with an external thread is integrally provided with a protrusion, and the protrusion matches the groove of the head of the first connecting screw.

[0012] As a further technical solution of this utility model, the end of the force-applying part away from the connector is provided with a countersunk hole to facilitate the insertion of the rotating body, and the cross-sectional view along the radial direction of the countersunk hole is D-shaped; the shape of the end of the rotating body inserted into the countersunk hole matches the shape and size of the countersunk hole.

[0013] As a further technical solution of this utility model, an annular groove is provided on the inner wall of the counterbore in the force-applying part; a sealing groove is provided on the rotating body, and an elastic locking ring is embedded in the sealing groove, which cooperates with the annular groove on the inner wall of the counterbore in the force-applying part.

[0014] As a further technical solution of this utility model, a circular hole is provided at the end of the rotating body away from the force-applying part, and a rotating shaft is rotatably connected in the circular hole; the rotating shaft is fixedly connected to the locking head.

[0015] As a further technical solution of this utility model, the rotating shaft is a stepped shaft, one end of which is rotatably connected to the circular hole of the rotating body, and the other end passes through the end plate and is fixedly connected to the locking head by the second connecting screw; the end plate is fixed to the rotating body by screws around its perimeter.

[0016] As a further technical solution of this utility model, the locking head is configured with double round heads, so the diameter of the locking head is larger than the diameter of the rotating body.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model features a unique internal structure for the connector, with a stepped cavity designed to provide a more stable connection and support. Inside the cavity, a cleverly placed first connecting screw for attaching the implant ensures a secure bond between the implant and the transfer rod.

[0019] 2. The operating steps of this utility model when using the dental implant transfer rod are as follows: First, the cross-sectional end face of the force-applying part along the axial direction is convex, which helps to better transmit torque. At the same time, the end of the force-applying part that connects to the connector has an external thread, while the cavity inside the connector has a corresponding internal thread. The two fit tightly together to ensure the reliability of the connection.

[0020] 3. In this utility model, the locking head is designed with double round heads, and its diameter is larger than that of the rotating body. This design is not only aesthetically pleasing, but more importantly, it provides a better grip and ease of operation during use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This utility model Figure 1 The main view.

[0023] Figure 3 This utility model Figure 2 AA sectional view.

[0024] Figure 4 This utility model Figure 1 A schematic diagram of the split structure.

[0025] Figure 5 This utility model Figure 4 Another perspective illustration.

[0026] Figure 6 This utility model Figure 5 The main view.

[0027] Figure 7 This utility model Figure 4 A magnified view of a portion of the image.

[0028] Figure 8 This utility model Figure 5 A magnified view of a portion of the image.

[0029] In the diagram: 1-Connector, 2-First connecting screw, 3-Force application part, 4-Rotating body, 5-Locking head, 6-Rotating shaft, 7-Second connecting screw, 8-End plate, 9-Elastic locking ring, 10-Protrusion, 11-Sealing groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-8In a specific embodiment of this utility model, an implant transfer rod specifically designed for the dental field is described. The core component of this transfer rod includes a precision-designed connector 1. The connector 1 has a unique internal structure with a stepped cavity, a design intended to provide a more stable connection and support. Inside the cavity, a first connecting screw 2 is cleverly positioned for connecting the implant, ensuring a secure bond between the implant and the transfer rod.

[0032] In addition, a force-applying part 3 is specially installed at one end of the connector 1. This force-applying part 3 is a key component in the entire operation of the transfer rod. A rotating body 4 is fixed at the end of the force-applying part 3 away from the connector 1, and a locking head 5 is provided at the other end of the rotating body 4. The locking head 5 and the rotating body 4 are connected by rotation to ensure flexible adjustment and locking during use.

[0033] In this embodiment, it is particularly worth mentioning that the end of the connector 1 away from the force-applying part 3 is designed as a hemispherical shape. This shape is not only aesthetically pleasing, but more importantly, it can provide a better contact surface and stability.

[0034] By employing the aforementioned meticulously designed technical solution, the operating steps for using this dental implant transfer rod are as follows: First, the cross-sectional end face of the force-applying part 3 along the axial direction is convex, a design that helps to better transmit torque. Simultaneously, the end of the force-applying part 3 that connects to the connector 1 has an external thread, while the cavity inside the connector 1 has a corresponding internal thread, ensuring a tight fit and reliable connection.

[0035] Furthermore, in this embodiment, the end of the force-applying part 3 with external threads is integrally provided with a protrusion 10, which matches the groove of the head of the first connecting screw 2. This design makes the connection more secure and less prone to loosening.

[0036] In addition, in this embodiment, the end of the force-applying part 3 away from the connector 1 is also provided with a countersunk hole to facilitate the insertion of the rotating body 4. The radial cross-sectional surface of the countersunk hole is set in a D shape. This shape design makes it easier for the rotating body 4 to be inserted into the countersunk hole, and the matching of shape and size ensures the stability after insertion.

[0037] To further improve sealing and stability, in this embodiment, an annular groove is provided on the inner wall of the counterbore in the force-applying part 3, and a sealing groove 11 is provided on the rotating body 4. An elastic locking ring 9 is embedded in the sealing groove 11. The elastic locking ring 9 cooperates with the annular groove on the inner wall of the counterbore in the force-applying part 3 to ensure the stability and sealing of the rotating body 4 in the counterbore.

[0038] Furthermore, in this embodiment, the end of the rotating body 4 away from the force-applying part 3 is provided with a circular hole, and a rotating shaft 6 is rotatably connected in the circular hole. The rotating shaft 6 is fixedly connected to the locking head 5. This design makes the operation of the locking head 5 more flexible.

[0039] In particular, in this embodiment, the rotating shaft 6 is designed as a stepped shaft, with one end rotatably connected to the circular hole of the rotating body 4, and the other end passing through the end plate 8 and fixedly connected to the locking head 5 by the second connecting screw 7. The end plate 8 is fixed to the rotating body 4 by screws around its perimeter. This structural design greatly enhances the overall stability and durability.

[0040] Finally, in this embodiment, the locking head 5 is designed with double round heads, and its diameter is larger than that of the rotating body 4. This design is not only aesthetically pleasing, but more importantly, it provides a better grip and ease of operation during use.

[0041] By adopting the above comprehensive technical solutions, the dental implant transfer rod of this utility model performs excellently in practical applications, is easy to operate, and has a firm connection, which greatly improves the efficiency and success rate of dental implant surgery.

[0042] The working principle of this utility model is as follows: In use, the connector 1 is first securely connected to the implant via the first connecting screw 2, ensuring no looseness between them. Then, force is transmitted and adjusted through the force-applying part 3. Because its cross-sectional end face is convex and has external threads, it tightly engages with the internal threads inside the connector 1, making the operation more precise and reliable. When rotation adjustment is required, the rotating body 4 rotates flexibly within the countersunk hole of the force-applying part 3. The elastic locking ring 9 interacts with the annular groove on the inner wall of the countersunk hole, ensuring the stability and sealing of the rotating body 4 during rotation. When locking is required, the locking head 5 is rotated. It is connected to the rotating body 4 via the rotating shaft 6. The stepped shaft design of the rotating shaft 6 and the fixing of the end plate 8 ensure that the locking head 5 remains stable during rotation and is not easily dislodged. The double-round head design of the locking head 5 not only increases the contact area with the tray and improves the locking effect but also makes operation more convenient. Throughout the process, the dental implant transfer bar, through its unique design, achieves precise transfer and stable locking of the implant position, greatly improving the efficiency and success rate of dental implant surgery.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dental implant transfer rod, characterized in that: The device includes a connector (1), which has a stepped cavity inside and a first connecting screw (2) for connecting the implant is provided inside the cavity; a force-applying part (3) is also installed at one end of the connector (1); a rotating body (4) is fixed at the end of the force-applying part (3) away from the connector (1), and a locking head (5) is provided at the other end of the rotating body (4); the locking head (5) is rotatably connected to the rotating body (4).

2. The dental implant transfer rod according to claim 1, characterized in that: The end of the connector (1) away from the force-applying part (3) is set in a hemispherical shape.

3. The dental implant transfer rod according to claim 1, characterized in that: The force-applying part (3) is convex in cross-sectional view along the axial direction, and the end connected to the connector (1) is provided with an external thread, while the cavity inside the connector (1) is provided with an internal thread.

4. The dental implant transfer rod according to claim 3, characterized in that: The force-applying part (3) has an integrally formed protrusion (10) at one end of the external thread, and the protrusion (10) matches the groove of the head of the first connecting screw (2).

5. The dental implant transfer rod according to claim 1, characterized in that: The force-applying part (3) is provided with a countersunk hole at the end away from the connector (1) to facilitate the insertion of the rotating body (4), and the cross-sectional view along the radial direction of the countersunk hole is set in a D shape; the shape of the rotating body (4) inserted into the countersunk hole matches the shape and size of the countersunk hole.

6. The dental implant transfer rod according to claim 5, characterized in that: An annular groove is provided on the inner wall of the countersunk hole in the force-applying part (3); a sealing groove (11) is provided on the rotating body (4), and an elastic locking ring (9) is embedded in the sealing groove (11). The elastic locking ring (9) cooperates with the annular groove on the inner wall of the countersunk hole in the force-applying part (3).

7. The dental implant transfer rod according to claim 1, characterized in that: The rotating body (4) has a circular hole at one end away from the force-applying part (3), and a rotating shaft (6) is rotatably connected inside the circular hole; the rotating shaft (6) is fixedly connected to the locking head (5).

8. The dental implant transfer bar according to claim 7, characterized in that: The rotating shaft (6) is a stepped shaft, with one end rotatably connected to the round hole of the rotating body (4), and the other end passing through the end plate (8) and then fixedly connected to the locking head (5) by the second connecting screw (7); the end plate (8) is fixed to the rotating body (4) around its perimeter by screws.

9. The dental implant transfer rod according to claim 1, characterized in that: The locking head (5) is configured with two round heads, so the diameter of the locking head (5) is larger than the diameter of the rotating body (4).

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