Orthodontic implant anchorage handle

Abstract

The utility model discloses an orthodontic implant anchorage handle, including handheld pole, rotary handle, installation head, transmission square stick, multi -rib slide bar, screw rod, pivot, worm wheel and sleeve, rotary handle end part is equipped with square hole, inside slide mounting transmission square stick, and one end of transmission square stick is connected with multi -rib slide bar, and the other end is connected with pivot, and pivot drives worm wheel and engages, and worm wheel coaxial connection sleeve, and sleeve end part is equipped with installation hole to adapt orthodontic bone nail, and handheld pole surface is equipped with limit bridge and sliding slot, and installation head is connected in sliding slot through support stick, and multi -rib slide bar and screw rod thread cooperation adjust handle length, the utility model discloses can effectively avoid oral cavity tooth structure to expand operating space, and through length adjusting structure adaptation different parts and need, and transmission structure stable and reliable promotion screw in precision, and antiskid and guide design enhances one -handed control convenience and overall stability.

Description

Technical Field

[0001] This utility model belongs to the field of orthodontic technology, specifically relating to an orthodontic implant anchorage handle. Background Technology

[0002] In orthodontic treatment, implant anchorage systems are widely used in clinical practice as an important auxiliary tool for stabilizing tooth movement. Among these, the orthodontic implant anchorage handpiece is a specialized handheld tool used to assist in the installation of miniature implants (usually orthodontic bone screws). By manipulating this handpiece, the dentist controls the positioning and insertion of the bone screw within the confined space of the oral cavity, thereby completing the anchorage fixation procedure.

[0003] Current orthodontic implant anchorage handpieces are mostly one-piece structures. Common structural designs make it difficult to flexibly adjust the handpiece length or angle, leading to problems such as insufficient operating space and limited field of vision, especially during bone screw implantation in the maxillary palatal region, when the handpiece cannot avoid the teeth. This affects the dentist's precise control of the bone screw. Furthermore, some handpiece structures lack effective transmission mechanisms, preventing the stable and precise transmission of rotational power to the bone screw, potentially causing misalignment of the implantation angle or low operational efficiency. In addition, in single-handed operation scenarios, existing devices often lack convenient adjustment and anti-slip designs, requiring improvement in stability and comfort during use. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an orthodontic implant anchorage handle that can achieve stable transmission, is easy to adjust with one hand, and can adapt to different installation depths and directions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an orthodontic implant anchorage handle, comprising a hand handle and an installation head, wherein a rotating handle is installed at the end of the hand handle, the surface of the rotating handle is provided with anti-slip texture, and the installation head is suspended at the front end of the rotating handle; The rotating handle has a square hole at its end, and a transmission square rod slides through the inner side of the rotating handle. A rotating shaft is rotatably installed inside the mounting head. The end of the transmission square rod is fixed on the rotating shaft, and a worm gear is provided at the end of the rotating shaft opposite to the transmission square rod. A boss is provided on one side of the mounting head, and a worm gear is rotatably mounted inside the boss, which meshes with the worm.

[0006] Furthermore, a sleeve is coaxially mounted on one side of the worm gear, the sleeve is located outside the boss, and the end of the sleeve has an installation hole that is compatible with the orthodontic bone screw.

[0007] Furthermore, the sleeve is perpendicular to the axis of the hand handle, and the two are misaligned to avoid the teeth.

[0008] Furthermore, a support rod is symmetrically arranged on one side of the mounting head, and a sliding groove is symmetrically opened on the surface of the handheld rod. The end of the support rod slides inside the sliding groove. A limit bridge is symmetrically arranged on the surface of the handheld rod near the rotating handle. The limit bridge spans the outside of the sliding groove and limits the support rod.

[0009] Furthermore, the handheld lever has a polygonal inner hole, and a polygonal slide rod is slidably installed inside the polygonal inner hole. The end of the transmission square rod opposite to the rotating shaft is rotatably installed at the end of the polygonal slide rod.

[0010] Furthermore, a screw is rotatably mounted at the center of the rear end of the handheld rod, and an internal threaded hole adapted to the screw is opened inside the end of the multi-faceted slide bar opposite to the transmission square rod.

[0011] Furthermore, a knob is provided at the end of the screw, and the knob is located on the outside of the hand handle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention features a sleeve structure that is offset from and perpendicular to the handle, allowing the sleeve to avoid the center line of the handle. This effectively avoids teeth when installing bone screws on the maxillary palatal side, expands the clinical operating space, and improves adaptability in narrow areas of the oral cavity. It solves the problem of existing orthodontic implant anchorage handles being straight and unable to avoid obstacles.

[0013] This invention achieves precise adjustment of the extension length of the mounting head by setting a multi-faceted slide bar and screw inside the hand handle and driving the multi-faceted slide bar to slide through a knob. This improves the adaptability of the device to different patients' oral structures and solves the problem that the length of the existing handle structure is fixed and cannot be flexibly adjusted according to the usage environment.

[0014] This invention connects a rotating shaft to a transmission square rod, which in turn drives the sleeve to rotate through the meshing of a worm gear and a worm wheel. This achieves stable transmission of rotational operations, avoids angular deviations during operation, improves the accuracy of bone screw implantation, and solves the problem of unreliable screw implantation operations caused by incomplete or unstable transmission links in existing structures.

[0015] This invention enhances the friction and control stability during rotation by setting an anti-slip texture structure on the surface of the rotating handle and a raised anti-slip design on the knob, thereby improving the convenience of one-handed operation and solving the problems of slippage and inaccurate control in existing devices during rotation.

[0016] This invention features a sliding groove on the surface of the handheld handle that slides with the support rod. A limiting bridge structure is added to the outside of the sliding groove to limit and guide the support rod, effectively preventing the mounting head from rotating and shifting during use. This improves the lateral support force of the mounting head and the stability of the overall structure, solving the problems of easy shaking and insufficient support of the mounting head in existing devices. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is an exploded structural diagram of the telescopic component of this utility model; Figure 4 This is a schematic diagram of the mounting head structure of this utility model; Figure 5 This is a schematic diagram of the internal transmission structure of this utility model.

[0018] The components represented by each number in the attached diagram are listed below: 1. Hand handle; 11. Slide groove; 12. Limiting bridge; 13. Multi-faceted inner hole; 2. Rotating handle; 21. Square hole; 3. Mounting head; 31. Support rod; 32. Boss; 4. Multi-faceted slide rod; 5. Screw; 51. Knob; 6. Transmission square rod; 7. Rotating shaft; 71. Worm gear; 8. Worm wheel; 9. Sleeve; 10. Orthodontic bone screw. Detailed Implementation

[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0020] refer to Figures 1-5 As shown, an orthodontic implant anchorage handle includes a handpiece 1 and an mounting head 3. A rotating handle 2 is mounted at the end of the handpiece 1. The surface of the rotating handle 2 is provided with anti-slip textures, which are equidistant horizontal stripes designed to enhance the friction of the operator's fingers during rotation and prevent slippage that could affect operational stability. The mounting head 3 is suspended at the front end of the rotating handle 2. The mounting head 3 has a bent structure and is connected to the rotating handle 2 via a connecting section, facilitating placement of the mounting head 3 into the palatal region of the patient's mouth for operation, effectively avoiding maxillary teeth. The outer shell of the mounting head 3 is made of medical-grade plastic, facilitating cleaning and high-temperature sterilization to meet clinical needs. The handpiece 1 is elongated and slender, with a structural length design to adapt to different oral cavity depths, improving adaptability and convenience when implanting bone screws in different locations.

[0021] A square hole 21 is provided at the end of the rotating handle 2. The square hole 21 has a square cross-section to ensure the shape fit accuracy between it and the transmission square rod 6. The transmission square rod 6 slides through the inner side of the rotating handle 2. The transmission square rod 6 is a long strip square rod structure made of metal, which has high strength and excellent transmission rigidity, and can stably transmit the rotation operation to the inside of the mounting head 3. A rotating shaft 7 is rotatably installed inside the mounting head 3. The rotating shaft 7 is installed inside the mounting head 3 through a needle roller bearing to reduce transmission friction and improve service life. The end of the transmission square rod 6 is fixed to the rotating shaft 7 and connected by a pin to prevent it from falling off. A worm gear 71 is provided at the end of the rotating shaft 7 opposite to the transmission square rod 6. The helical surface of the worm gear 71 is hardened to improve the meshing strength and operational stability.

[0022] The mounting head 3 has a boss 32 on one side, and a worm gear 8 is rotatably mounted inside the boss 32. The boss 32, as the load-bearing structure of the worm gear 8, is set as a hollow palatal biased shell, which can reduce the overall volume while ensuring engagement, thereby increasing the maneuvering space inside the oral cavity. The worm gear 8 meshes with the worm 71 and adopts a standard module ratio design to ensure the stability of the transmission ratio and the accuracy of the output angle, thereby improving the controllability of the operation during the orthodontic bone screw insertion process.

[0023] refer to Figure 1 and Figure 5 As shown, a sleeve 9 is coaxially mounted on one side of the worm gear 8. The sleeve 9 is made of high-strength stainless steel to enhance its wear resistance and sterilization ability. The sleeve 9 is placed outside the boss 32, forming an extension structure of the worm gear 8, which facilitates the direct transmission of rotational force to the orthodontic bone screw 10. The end of the sleeve 9 is provided with a mounting hole that is compatible with the orthodontic bone screw 10. The mounting hole adopts an internal hexagonal or cross-shaped structure, which is set according to the design of the bone screw head to ensure stability and accuracy during the installation process.

[0024] refer to Figure 1 and Figure 2 As shown, the sleeve 9 and the hand handle 1 are set perpendicular to each other and are offset to avoid the teeth. The offset direction is offset to the palatal side of the horizontal plane where the mounting head 3 is located. This ensures that the anterior teeth and molars can be effectively avoided when operating in the maxillary region, improving clinical operability and field of vision. This avoids the problem of the traditional straight handle affecting the bone screw installation accuracy due to interference with the dentition.

[0025] refer to Figure 1 and Figure 4As shown, a support rod 31 is symmetrically arranged on one side of the mounting head 3. The support rod 31 is made of elastic stainless steel and has positioning and limiting protrusions to improve stable sliding within the slide groove 11. The surface of the hand handle 1 is symmetrically provided with slide grooves 11. The slide grooves 11 are linear groove structures, extending in a direction parallel to the longitudinal axis of the hand handle 1, to accommodate the support rod 31 and limit its sliding direction. The end of the support rod 31 slides inside the slide groove 11, providing reliable lateral support for the mounting head 3 during use and preventing rotational deviation. A limiting bridge 12 is symmetrically arranged on the surface of the hand handle 1 near the rotating handle 2. The limiting bridge 12 spans the outside of the slide groove 11 and adopts an arched bridge design, with both ends fixed to the edge of the slide groove. The limiting bridge 12 limits the support rod 31, preventing it from loosening and dislodging during sliding, further improving the structural stability of the handle during use.

[0026] refer to Figure 2 and Figure 3 As shown, the handheld lever 1 has a multi-faceted inner hole 13 inside. The multi-faceted inner hole 13 adopts an octagonal prism structure, which is conducive to forming a surface contact fit with the multi-faceted slide rod 4, improving sliding stability and avoiding rotational deviation. The multi-faceted slide rod 4 is slidably installed inside the multi-faceted inner hole 13. The shape of the multi-faceted slide rod 4 corresponds to the inner hole and can slide longitudinally along the handheld lever 1 under the drive of the screw 5. The end of the transmission square rod 6 opposite to the rotating shaft 7 is rotatably installed at the end of the multi-faceted slide rod 4. The installation structure adopts a limiting groove plus elastic retaining ring design to achieve rotational connection while preventing slippage and ensuring the integrity of the transmission structure.

[0027] refer to Figure 2 and Figure 3 As shown, a screw 5 is rotatably mounted at the center of the rear end of the handheld rod 1. The screw 5 has threads on its surface, which are used to mate with the internal threaded hole in the multi-faceted slide rod 4. The end of the multi-faceted slide rod 4 opposite to the transmission square rod 6 has an internal threaded hole that matches the screw 5. The slide rod moves back and forth through the helical engagement between the two, thereby adjusting the extension length of the mounting head 3 to adapt to the needs of different oral structures or surgical positions, and solving the problem of the non-adjustable length of the existing device.

[0028] refer to Figure 2 and Figure 3 As shown, a knob 51 is provided at the end of the screw 5. The knob 51 is located on the outside of the hand handle 1. The surface of the knob 51 is provided with radially distributed protrusions to enhance the rotational friction when gripping, so that the operator can easily complete the adjustment operation even when holding the device with one hand. The knob 51 is fixedly connected to the screw 5. The rotation of the knob 51 drives the screw 5 to rotate, and then the position of the multi-faceted slide bar 4 is moved to complete the fine adjustment of the handle length, thereby improving the flexibility and precision of the planting process.

[0029] The working principle of this utility model is as follows: When in use, hold the handle 1 so that the mounting head 3 is placed in the patient's mouth. Since the transmission square rod 6 can only slide axially, and the support rods 31 on both sides slide inside the slide groove 11 respectively, the mounting head 3 is supported. The limiting bridge 12 on the surface of the handle 1 can further improve the limiting of the support rods 31. Rotating the knob 51 can control the rotation of the screw 5. Since the multi-faceted slide rod 4 and the multi-faceted inner hole 13 are multi-faceted, the multi-faceted slide rod 4 can only slide inside the multi-faceted inner hole 13. When the screw 5 rotates, it can control the movement of the multi-faceted slide rod 4. The transmission square rod 6 and the multi-faceted slide rod 4 are rotated and installed. Therefore, the sliding of the multi-faceted slide rod 4 can be controlled by the transmission square rod 6 to control the length of the mounting head 3, thereby adjusting the length of the handle to improve the convenience of use and to suit different usage scenarios. When holding the handle 1 with one hand, the rotating handle 2 can be rotated by controlling the fingers. The texture on the surface of the rotating handle 2 can improve the anti-slip properties. Since the transmission square rod 6 passes through the square hole 21, the rotating handle 2 can drive the transmission square rod 6 to rotate without affecting the sliding of the transmission square rod 6. Due to the cooperation between the support rod 31 and the slide groove 11, the mounting head 3 cannot rotate. At this time, the transmission square rod 6 can drive the rotating shaft 7 to rotate, so that the rotating shaft 7 and the worm gear 8 can mesh to drive the worm gear 8 to rotate, and then drive the sleeve 9 to rotate, so as to rotate and install the orthodontic bone screw 10. The boss 32 and the mounting head 3 are offset so that the sleeve 9 is perpendicular to and offset from the center line of the handle, thus avoiding the teeth when operating on the palatal side, improving practicality.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An orthodontic implant anchorage handle, comprising a handheld rod (1) and an mounting head (3), characterized in that: The end of the handheld lever (1) is equipped with a rotating handle (2), the surface of the rotating handle (2) is provided with anti-slip texture, and the mounting head (3) is suspended at the front end of the rotating handle (2); The rotating handle (2) has a square hole (21) at its end. A transmission square rod (6) slides through the inner side of the rotating handle (2). A rotating shaft (7) is rotatably installed inside the mounting head (3). The end of the transmission square rod (6) is fixed on the rotating shaft (7). A worm gear (71) is provided at the end of the rotating shaft (7) away from the transmission square rod (6). A boss (32) is provided on one side of the mounting head (3), and a worm wheel (8) is rotatably mounted inside the boss (32), and the worm wheel (8) meshes with the worm (71).

2. The orthodontic implant anchorage handle according to claim 1, characterized in that: A sleeve (9) is coaxially mounted on one side of the worm gear (8). The sleeve (9) is located outside the boss (32). The end of the sleeve (9) is provided with an installation hole that is compatible with the orthodontic bone screw (10).

3. The orthodontic implant anchorage handle according to claim 2, characterized in that: The sleeve (9) is set perpendicular to the axis of the hand handle (1), and the two are offset to avoid the teeth.

4. The orthodontic implant anchorage handle according to claim 1, characterized in that: The mounting head (3) is symmetrically provided with a support rod (31) on one side. The handheld rod (1) is symmetrically provided with a sliding groove (11) on its surface. The end of the support rod (31) slides inside the sliding groove (11). The handheld rod (1) is symmetrically provided with a limiting bridge (12) at one end near the rotating handle (2). The limiting bridge (12) spans across the outside of the sliding groove (11) and limits the support rod (31).

5. The orthodontic implant anchorage handle according to claim 1, characterized in that: The handheld rod (1) has a multi-faceted inner hole (13) inside, and a multi-faceted slide rod (4) is slidably installed inside the multi-faceted inner hole (13). The transmission square rod (6) is rotatably installed at the end of the multi-faceted slide rod (4) away from the rotating shaft (7).

6. The orthodontic implant anchorage handle according to claim 5, characterized in that: The handheld rod (1) has a screw (5) rotatably mounted at the rear center, and the multi-faceted slide rod (4) has an internal threaded hole that matches the screw (5) at the end opposite to the transmission square rod (6).

7. The orthodontic implant anchorage handle according to claim 6, characterized in that: A knob (51) is provided at the end of the screw (5), and the knob (51) is located on the outside of the hand handle (1).

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