A new dental implant repair screwdriver

Abstract

The utility model relates to a novel dental implant repair screwdriver belongs to dental implant screwdriver technical field, this novel dental implant repair screwdriver, include: handle, one side of handle is provided with the sword stem, the other end fixedly connected with the sword head of sword stem, the sword head sets up hexagonal spherical shape, multi -angle detection mechanism is used for to the multi -angle detection mechanism of base platform carries out overhaul and sets up between handle and sword stem, through the design of sword head is hexagonal spherical structure, make it possess multidimensional edge, can be obliquely inserted with base platform screw groove stable meshing, solve the clinical problem of insufficient opening degree of anterior teeth and posterior teeth appearance, and the quick dismounting of connecting detection subassembly can be realized sword stem and sword head, be convenient for replacement, cleaning and maintenance, and torque assembly can real -time detection and display operation torque, avoid because too tight leads to screw breakage or too loose causes the loose body of prosthesis.

Description

Technical Field

[0001] This utility model relates to the field of dental implant screwdriver technology, and in particular to a novel screwdriver for dental implant restoration. Background Technology

[0002] During dental implant restoration, the implant and abutment are typically secured together using a central screw. To ensure the long-term stability of the restoration, the dentist needs to apply appropriate torque to the central screw during placement. Currently, commonly used clinical wrenches or straight-handle screwdrivers generally require the screwdriver to be in perpendicular contact with the screw groove to ensure smooth torque transmission.

[0003] As shown in the reference case "A screwdriver for dental implant restoration with elastic cord" (publication number CN216318115U), the screwdriver has a retractable elastic cord inside the tip and a finger ring buckle protruding from the tip. The elastic cord connects the finger to the screwdriver, while the finger ring buckle is placed on the doctor's finger for fixation. When not in use, the elastic cord is located inside the tip of the screwdriver, with only the finger ring buckle protruding. When in use, the elastic cord can be pulled out, and the finger ring buckle is placed on the doctor's finger, achieving fixation. After this, the screwdriver can rotate freely 360 degrees relative to the finger.

[0004] However, during posterior tooth restorations, some patients have insufficient mouth opening or limited mouth opening, making it difficult to ensure that the screwdriver enters the screw hole vertically. Conventional tools cannot effectively apply force within the limited oral space, leading to obstruction or even inability to complete the denture fitting procedure. Utility Model Content

[0005] Therefore, it is necessary to address the issue that some patients, during posterior tooth restorations, have insufficient mouth opening or limited mouth opening, making it difficult to ensure that the screwdriver enters the screw hole vertically. Conventional tools cannot effectively apply force within the limited oral space, leading to obstruction or even inability to complete the prosthesis fitting process. This necessitates providing a new type of screwdriver for dental implant restorations.

[0006] A novel screwdriver for dental implant restoration includes: a handle, a shank on one side of the handle, and a head fixedly connected to the other end of the shank, the head being hexagonal ball-shaped; a multi-angle detection mechanism for multi-angle inspection of the abutment, the multi-angle detection mechanism being disposed between the handle and the shank; wherein the multi-angle detection mechanism includes a connecting rod disposed on one side of the handle, a connection detection component disposed on one side of the connecting rod, and a torque component disposed between the handle and the connecting rod.

[0007] The connection detection assembly includes a mounting rod fixedly installed at the other end of the tool bar. The end of the connecting rod near the tool bar has a mounting groove. Multiple magnetic strips are fixedly installed on the outer side of the mounting rod. The shape of the mounting groove is adapted to the shape of the mounting rod and the multiple magnetic strips.

[0008] The mounting rod has a positioning hole at one end near the mounting groove. A positioning block is provided inside the mounting groove. Multiple limiting bladders are fixedly installed on the surface of the positioning block. The positioning block is slidably connected to the adjacent positioning hole.

[0009] The limiting bladder is arranged around the outside of the positioning block, and the inner wall of the positioning hole is provided with a groove that is adapted to the multiple limiting bladders.

[0010] A micro pump is fixedly installed on the surface of the connecting rod, and a delivery pipe is fixedly installed at the output end of the micro pump. The delivery pipe is located inside the connecting rod, and the other end of the delivery pipe is fixedly connected to the positioning block. The delivery pipe is also connected to multiple limiting bladders.

[0011] The connecting rod has a sealing groove at one end near the tool bar, and a protective ring is provided at one end of the connecting rod. The protective ring is sealed and engaged with the sealing groove, and the protective ring is sleeved on the outside of the tool bar.

[0012] The torque assembly includes a torque sensor fixedly installed on one side of the tool holder, a resistance universal joint fixedly installed at the output end of the torque sensor, and the other side of the resistance universal joint fixedly connected to a connecting rod.

[0013] A display screen is fixedly mounted on the surface of the knife handle, and the edges of the display screen are all rounded.

[0014] Beneficial effects 1. By designing the blade head into a hexagonal spherical structure, it has multi-dimensional edges and corners, which can stably engage with the abutment screw slot when inserted at an angle, thereby achieving effective driving of the central screw, solving the clinical problems of anterior tooth aesthetics and insufficient posterior tooth opening, significantly improving applicability. The connection detection component can realize quick disassembly and assembly of the blade holder and blade head, which is convenient for replacement, cleaning and maintenance. The torque component can detect and display the operating torque in real time, allowing doctors to intuitively grasp the amount of force applied, avoiding screw breakage due to overtightening or loosening of the restoration due to overloosening; 2. When the doctor applies rotational force to the handle during operation, the torque sensor can collect the torque signal acting on the handle in real time and transmit it stably to the connecting rod through the resistance universal joint. The torque sensor can collect and provide feedback on the torque applied by the screwdriver in real time during operation, so that the doctor can intuitively know the current torque value. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the multi-angle detection mechanism of this utility model; Figure 3 This is a schematic diagram of the connecting rod and the tool holder structure of this utility model; Figure 4 This is a schematic diagram of the connecting rod and protective ring structure of this utility model; Figure 5 This is a schematic diagram of the knife handle structure of this utility model.

[0017] Figure label: 100. Tool holder; 200. Tool shank; 210. Tool head; 300. Multi-angle detection mechanism; 310. Connecting rod; 320. Connection detection assembly; 321. Mounting rod; 322. Positioning hole; 323. Mounting groove; 324. Magnetic strip; 325. Micro pump; 326. Delivery pipe; 327. Positioning block; 328. Limiting bladder; 329. Sealing groove; 3210. Protective ring; 330. Torque assembly; 331. Torque sensor; 332. Resistance universal joint; 333. Display screen. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The following is combined Figures 1-5 This invention describes a novel screwdriver for dental implant restoration.

[0020] In one embodiment, a novel dental implant restoration screwdriver includes: a handle 100, a shank 200 disposed on one side of the handle 100, and a cutting head 210 fixedly connected to the other end of the shank 200, the cutting head 210 being configured as a hexagonal ball shape; a multi-angle detection mechanism 300, used for multi-angle inspection of the abutment, the multi-angle detection mechanism 300 being disposed between the handle 100 and the shank 200; wherein, the multi-angle detection mechanism 300 includes a connecting rod 310 disposed on one side of the handle 100, a connecting detection component 320 disposed on one side of the connecting rod 310, and a torque component 330 disposed between the handle 100 and the connecting rod 310.

[0021] In this embodiment, the hexagonal ball shape of the screwdriver tip 210 provides a multi-dimensional cutting edge structure. During operation, the dentist does not need to strictly maintain a perpendicular alignment between the screwdriver and the abutment screw slot; instead, it can be inserted at an angle, allowing the edges of the tip 210 to stably engage with the abutment screw slot, thus effectively driving the central screw. This is suitable for cases where aesthetic requirements exist in the anterior region, where the inspection hole needs to avoid the labial side, and for cases where patients in the posterior region have insufficient mouth opening, significantly improving clinical applicability. Furthermore, the connection detection component 320 allows for quick disassembly and replacement of the screwdriver shank 200 and the tip 210, facilitating the switching of the appropriate tip 210 according to different implant needs and improving operational efficiency during cleaning, sterilization, and maintenance. The torque component 330 can detect and display the actual torque of the screwdriver during the inspection operation in real time. The dentist can intuitively see the applied torque value during operation, eliminating reliance on experience and preventing screw breakage or abutment damage due to excessive torque. It should be noted that existing dental implant restoration screwdrivers include a handle 100, a shaft 200, and a tip 210. These screwdrivers are mainly divided into two categories: manual screwdrivers, commonly used in clinical restorations, where doctors operate them directly by hand, relying on experience or a torque wrench to control the force; and machine-type screwdrivers, used in conjunction with a low-speed handpiece or power unit, suitable for high-efficiency surgical scenarios. A connection detection component 320 is positioned between the handle 100 and the shaft 200 for quick disassembly or replacement of the shaft 200 and tip 210. This component does not alter the overall force path of the screwdriver; it only adds a detachable function to the original rigid connection, thus not affecting the screwdriver's normal force transmission effect or changing the meshing relationship between the tip 210 and the abutment. Similarly, a torque component 330 is positioned between the handle 100 and the connecting rod 310 for real-time torque detection and display. It is only sensitive to torsional deformation in the rotational direction and insensitive to axial and lateral forces, therefore not weakening torque transmission efficiency. Doctors can apply force as they would with a regular screwdriver, but with the added features of torque display or force limit indicator.

[0022] like Figure 2 , Figure 3 and Figure 4 As shown, the connection detection assembly 320 includes a mounting rod 321 fixedly installed at the other end of the tool bar 200. The end of the connecting rod 310 near the tool bar 200 is provided with a mounting groove 323. Multiple magnetic strips 324 are fixedly installed on the outer side of the mounting rod 321. The shape of the mounting groove 323 is adapted to the shape of the mounting rod 321 and the multiple magnetic strips 324.

[0023] In this embodiment, the magnetic strip 324 is adapted to the mounting groove 323, and forms a multi-point stable positioning when inserted by using magnetic adsorption. Through the magnetic positioning structure, doctors can quickly install and remove the blade holder 200 and the blade head 210 during clinical operation. The multiple magnetic strips 324 form a uniform circumferential adsorption force, which can provide a firm fixing effect during the connection process, and avoid loosening and displacement caused by single-point connection, ensuring that the blade head 210 can still maintain stable engagement under high-frequency, multi-angle torsion operation.

[0024] The mounting rod 321 has a positioning hole 322 at one end near the mounting groove 323. A positioning block 327 is provided inside the mounting groove 323. Multiple limiting bladders 328 are fixedly installed on the surface of the positioning block 327. The positioning block 327 is slidably connected to the adjacent positioning hole 322.

[0025] In this embodiment, after the mounting rod 321 is inserted into the mounting slot 323 to complete the connection, the positioning block 327 can simultaneously enter the positioning hole 322. At the same time, the multiple limiting bladders 328 fixedly installed on the surface of the positioning block 327 will elastically expand after insertion, forming a tight fit with the inner wall of the positioning hole 322. The positioning block 327 entering the positioning hole 322 achieves mechanical limiting, while the elastic expansion of the limiting bladders 328 provides flexible fastening force. The two work together to effectively prevent the tool bar 200 from loosening or displacing due to repeated twisting during operation.

[0026] The limiting bladder 328 is arranged around the outside of the positioning block 327, and the inner wall of the positioning hole 322 is provided with a groove that is adapted to the multiple limiting bladders 328.

[0027] In this embodiment, when the mounting rod 321 is inserted into the mounting groove 323 and the positioning block 327 enters the positioning hole 322, multiple limiting bladders 328 are respectively embedded in the grooves opened on the inner wall of the positioning hole 322. The corresponding cooperation between the limiting bladders 328 and the grooves forms a multi-point surrounding locking structure, which can effectively prevent the mounting rod 321 from shaking or loosening during high-frequency rotation or tilting operation, and ensure the tight connection between the tool bar 200 and the connecting rod 310. The limiting bladders 328 are made of elastic material and can generate a certain deformation during the insertion process and automatically fit the inner wall of the groove, thereby achieving adaptive limiting.

[0028] A micro pump 325 is fixedly installed on the surface of the connecting rod 310. A delivery pipe 326 is fixedly installed at the output end of the micro pump 325. The delivery pipe 326 is located inside the connecting rod 310. The other end of the delivery pipe 326 is fixedly connected to the positioning block 327, and the delivery pipe 326 is connected to multiple limiting bladders 328.

[0029] In this embodiment, when the micro pump 325 is started, the gas or liquid medium can be delivered to the limiting bladder 328 through the delivery pipe 326, causing the limiting bladder 328 to inflate or retract. By controlling the start and stop of the micro pump 325, the limiting bladder 328 can be inflated or released, so that it is in a contracted state when inserted for quick installation, and expands and embeds into the groove after positioning to achieve stable limiting.

[0030] A sealing groove 329 is provided at one end of the connecting rod 310 near the tool holder 200, and a protective ring 3210 is provided at one end of the connecting rod 310. The protective ring 3210 is sealed and engaged with the sealing groove 329, and the protective ring 3210 is sleeved on the outside of the tool holder 200.

[0031] In this embodiment, when the tool holder 200 and the connecting rod 310 are used together, the protective ring 3210 can form a circumferential seal with the outer wall of the tool holder 200 to prevent the internal components from being contaminated due to the infiltration of dust, blood or saliva at the connection point.

[0032] like Figure 2 , Figure 3 and Figure 5 As shown, the torque assembly 330 includes a torque sensor 331 fixedly installed on one side of the tool holder 100. A resistance universal joint 332 is fixedly installed at the output end of the torque sensor 331, and the other side of the resistance universal joint 332 is fixedly connected to the connecting rod 310.

[0033] In this embodiment, when the doctor applies a rotational force to the handle 100 during operation, the torque sensor 331 can collect the torque signal acting on the handle 200 in real time and transmit it stably to the connecting rod 310 through the resistance universal joint 332. The torque sensor 331 can collect and provide feedback on the torque applied by the screwdriver in real time during operation, so that the doctor can intuitively know the current torque value. It should be noted that the torque sensor 331 can use conventional torque detection technologies such as strain gauge, piezoelectric or resistive miniature sensors. The torque sensor 331 can be fixedly installed on the force transmission shaft section between the handle 100 and the resistance universal joint 332 to ensure that the collected signal corresponds only to the rotational torque applied by the doctor and is not affected by axial thrust or lateral bending force.

[0034] A display screen 333 is fixedly mounted on the surface of the tool holder 100, and the edges of the display screen 333 are all rounded.

[0035] In this embodiment, after the torque sensor 331 collects the torque signal applied by the doctor during the operation, the signal is processed by the circuit and transmitted to the display screen 333 in real time for numerical display. The rounded edge design of the display screen 333 not only avoids scratches or discomfort to the hands of medical staff during the operation, but also facilitates subsequent instrument cleaning and disinfection.

[0036] Working principle: During use, due to the hexagonal spherical structure of the blade head 210, the dentist can insert it vertically or at a certain angle into the screw slot of the restorative abutment. Even in the anterior region where it is necessary to avoid the labial access hole or in the posterior region where the patient has insufficient mouth opening, the edges of the blade head 210 can reliably engage with the screw slot, thereby effectively driving the central screw. When it is necessary to replace or clean the blade holder 200 and the blade head 210, the mounting rod 321 is inserted into the mounting slot 323 on the connecting rod 310. Under the surrounding attraction of the magnetic strip 324, initial positioning is formed. Subsequently, the positioning block 327 is inserted into the positioning hole 322, and the surrounding limiting bladder 328 automatically expands and embeds into the inner wall groove, forming a stable surrounding limiting. If further reinforcement is required, the micro pump 325 can deliver gas or liquid into the limiting bladder 328 through the delivery tube 326, causing the limiting bladder 328 to inflate and achieve reliable locking. This process not only ensures connection stability but also facilitates quick repositioning by the doctor during postoperative disassembly and maintenance. During the engagement of the scalpel handle 200 and the connecting rod 310, the protective ring 3210 and the sealing groove 329 engage to form a circumferential seal, preventing blood, saliva, or dust from entering the interior, ensuring that components are not contaminated and extending the instrument's lifespan. During the screwdriver operation, the torque sensor 331 collects the rotational torque applied by the doctor in real time and transmits it stably to the connecting rod 310 through the resistance universal joint 332, thus ensuring measurement accuracy under multi-angle operation. The collected signal is processed and transmitted to the display screen 333 on the surface of the scalpel handle 100 for intuitive display. The display screen 333 features a rounded corner design, which avoids scratches during operation and facilitates cleaning and sterilization. The doctor can precisely control the applied force based on the displayed torque value, avoiding screw breakage due to overtightening or loosening of the prosthesis due to overloosening.

[0037] It should be noted that the torque sensor and micro pump mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the torque sensor and micro pump can be powered by an internal power supply, etc. The specific power supply method is selected according to the situation, and will not be elaborated here.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A novel screwdriver for dental implant restoration, characterized in that, include: A handle (100) is provided with a shank (200) on one side of the handle (100), and a blade head (210) is fixedly connected to the other end of the shank (200). The blade head (210) is set in the shape of a hexagonal ball. A multi-angle inspection mechanism (300) is used to perform multi-angle inspections on the base. The multi-angle inspection mechanism (300) is disposed between the tool holder (100) and the tool bar (200). The multi-angle detection mechanism (300) includes a connecting rod (310) disposed on one side of the tool holder (100), a connection detection component (320) disposed on one side of the connecting rod (310), and a torque component (330) disposed between the tool holder (100) and the connecting rod (310).

2. The novel dental implant restoration screwdriver according to claim 1, characterized in that, The connection detection assembly (320) includes a mounting rod (321) fixedly installed at the other end of the tool bar (200). The connecting rod (310) has a mounting groove (323) at one end near the tool bar (200). Multiple magnetic strips (324) are fixedly installed on the outside of the mounting rod (321). The shape of the mounting groove (323) is adapted to the shape of the mounting rod (321) and the multiple magnetic strips (324).

3. The novel dental implant restoration screwdriver according to claim 2, characterized in that, The mounting rod (321) has a positioning hole (322) at one end near the mounting groove (323). A positioning block (327) is provided inside the mounting groove (323). Multiple limiting bladders (328) are fixedly installed on the surface of the positioning block (327). The positioning block (327) is slidably connected to the adjacent positioning hole (322).

4. The novel dental implant restoration screwdriver according to claim 3, characterized in that, The limiting bladder (328) is arranged around the outside of the positioning block (327), and the inner wall of the positioning hole (322) is provided with a groove that is adapted to the multiple limiting bladders (328).

5. The novel dental implant restoration screwdriver according to claim 4, characterized in that, A micro pump (325) is fixedly installed on the surface of the connecting rod (310). A delivery pipe (326) is fixedly installed at the output end of the micro pump (325). The delivery pipe (326) is located inside the connecting rod (310). The other end of the delivery pipe (326) is fixedly connected to the positioning block (327), and the delivery pipe (326) is connected to multiple limiting bladders (328).

6. The novel dental implant restoration screwdriver according to claim 1, characterized in that, The connecting rod (310) has a sealing groove (329) at one end near the tool bar (200), and a protective ring (3210) is provided at one end of the connecting rod (310). The protective ring (3210) is sealed and snapped into the sealing groove (329), and the protective ring (3210) is sleeved on the outside of the tool bar (200).

7. The novel screwdriver for dental implant restoration according to claim 1, characterized in that, The torque assembly (330) includes a torque sensor (331) fixedly installed on one side of the tool holder (100), and a resistance universal joint (332) is fixedly installed on the output end of the torque sensor (331). The other side of the resistance universal joint (332) is fixedly connected to the connecting rod (310).

8. The novel screwdriver for dental implant restoration according to claim 1, characterized in that, A display screen (333) is fixedly mounted on the surface of the knife handle (100), and the edges of the display screen (333) are all rounded.

Images