Mechanical arm for dental implant
By designing a robotic arm for dental implantation that includes a base, lifting structure, and rotating arm, the problems of system failure leading to inability to operate manually and high costs were solved. It also enables flexible angle and length adjustments, improving surgical outcomes and cost-effectiveness.
Patent Information
- Application Number
- CN202520182303.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Existing dental implant robotic arms cannot be manually operated when the system malfunctions, and their high production costs affect surgical outcomes and cost-effectiveness.
A robotic arm for dental implantation was designed, comprising a base, a lifting structure, a rotating arm, and an operating arm. It employs a damped rotating shaft and an electric telescopic cylinder to achieve flexible angle and length adjustments, thereby reducing production costs.
It enables flexible manual operation in case of system failure, reduces production costs, and improves the precision and efficiency of dental implant surgery.
Smart Images

Figure CN223817656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental implant robotic arms, specifically a robotic arm for dental implants. Background Technology
[0002] Traditional dental implant surgery requires a surgeon to operate with a scalpel, demanding high precision and stability from the surgeon to achieve optimal results. Furthermore, surgeons are prone to fatigue after performing multiple surgeries, which can also affect outcomes. Therefore, robotic arms can improve efficiency. A dental implant robot system with publication number CN110559095B was found, comprising: a robot base housing; a robotic arm with a fixed end mounted on the robot base housing and a free end located outside the robot base housing; an implant handpiece mounted on the free end of the robotic arm; a robotic arm controller installed inside the robot base housing and connected to the robotic arm; a dental implant machine located inside the robot base housing and connected to the implant handpiece; a switch connecting the robotic arm controller and the dental implant machine, also located inside the robot base housing; and an industrial control computer connected to the switch, also located inside the robot base housing.
[0003] However, in the above technologies, the robotic arm is controlled by a control system, which cannot be manually operated when the system malfunctions, and the production cost of the equipment is very high. Utility Model Content
[0004] The problem this invention aims to solve is to provide a low-cost, more convenient, and highly flexible robotic arm.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is a robotic arm for dental implantation, comprising a base, a lifting structure, a rotating arm, and an operating arm. The lifting structure includes an outer sleeve and an insertion rod. The rotating arm is disposed on the upper end of the insertion rod. One end of the rotating arm is connected to the insertion rod via a first damping shaft, and the other end of the rotating arm is a free end. A second damping shaft is also disposed on the free end of the rotating arm, and is connected to the operating arm via the second damping shaft. The operating arm can rotate around the rotating arm. The operating arm includes a rotating assembly, a telescopic rod, and an implant head. The rotating assembly and the first damping shaft on the rotating arm... The two damping shafts are connected, and the second damping shaft can drive the rotating assembly to flip. The rotating assembly has an annular cross-section, and an annular limiting groove is provided on the inner ring side wall of the rotating assembly. The telescopic rod includes a limiting sleeve and a connecting rod. The limiting sleeve has a cylindrical barrel structure, and a circular limiting block is provided at the bottom of the limiting sleeve. The circular limiting block is set in the annular limiting groove and can drive the limiting sleeve to rotate in the annular limiting groove. An electric telescopic cylinder is provided inside the circular limiting sleeve. One end of the connecting rod is set at the telescopic end of the electric telescopic cylinder, and the other end of the connecting rod is set with the planting machine head.
[0006] Even better, the upper end of the base is provided with a threaded hole, which is located at the center of the base. The cross-section of the outer tube and the insertion rod are both circular. The lower end of the outer tube is provided with an external thread, which connects to the threaded hole of the base through the external thread.
[0007] Even better, the outer tube has a hollow structure inside, the insertion rod is set inside the outer tube and can move inside the outer tube. The outer wall of the insertion rod is provided with a limiting slide, which extends along the length of the insertion rod. There are two limiting slides, which are located on both sides of the outer wall of the insertion rod. A limiting protrusion is provided on the inner wall of the outer tube, which extends along the length of the outer tube. When the insertion rod enters the outer tube, the limiting protrusion is located in the limiting slide on one side of the side wall of the insertion rod.
[0008] Even better, the outer tube is also equipped with a knob, which has a threaded rod. The threaded rod penetrates the side wall of the outer tube and inserts into the limiting slide. Both the limiting protrusion and the threaded rod are equipped with a rubber layer.
[0009] Even better, the inner wall of the limiting sleeve is provided with roller slides, which are arranged along the length of the limiting sleeve. There are three roller slides, which are arranged in a circular array around the inner wall of the limiting sleeve. In addition, three limiting pulleys are provided on the side wall of the connecting rod, which are arranged in a circular array around the connecting rod. The three limiting pulleys are located in the three roller slides respectively, and can move within the roller slides by means of the limiting pulleys.
[0010] Compared with the prior art, the beneficial effects of this utility model are: the circular limiting block can drive the limiting sleeve to rotate in the annular limiting groove, which in turn drives the connecting rod to rotate, thereby causing the implant head to rotate accordingly. This makes it easier to adjust the angle when drilling holes in the maxilla and mandible. Furthermore, the control switch on the limiting sleeve can also control the operation of the electric telescopic cylinder inside the limiting sleeve, which in turn drives the connecting rod to extend and retract the implant head. This makes it easier to adjust the length and angle during implant drilling operations. Moreover, the structure is simple and the production cost is low. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the rotating structure of the operating arm of this utility model;
[0013] Figure 3 This is a schematic diagram of the internal structure of the outer sleeve of this utility model;
[0014] Figure 4 This is a schematic diagram of the insertion rod structure of this utility model;
[0015] Figure 5 This is a schematic diagram of the rotating kit structure of this utility model;
[0016] Figure 6 This is a schematic diagram of the limiting sleeve structure of this utility model;
[0017] Figure 7 This is a schematic diagram of the connecting rod structure of this utility model;
[0018] Among them, 1-base, 2-anti-slip pad, 3-threaded hole, 4-outer sleeve, 5-insertion rod, 6-limiting slide, 7-limiting protrusion, 8-knob, 9-threaded rod, 10-rotating arm, 11-support plate, 12-rotating kit, 13-annular limiting groove, 14-limiting sleeve, 15-connecting rod, 16-circular limiting block, 18-planter head, 19-roller slide, 20-limiting pulley, 21-control switch. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0022] like Figures 1 to 7As shown, a robotic arm for dental implantation includes a base 1, a lifting structure, a rotating arm 10, and an operating arm. The base 1 is cylindrical and placed on the ground. An anti-slip pad 2, made of rubber, is provided at the bottom of the base 1 to prevent it from sliding on the ground. A threaded hole 3 is provided at the upper end of the base 1, located at its center. The base 1 can be connected to the lifting structure through the threaded hole 3. The lifting structure includes an outer tube 4 and an insertion rod 5. Both the outer tube 4 and the insertion rod 5 have circular cross-sections. The lower end of the outer tube 4 is provided with an external thread, which connects to the threaded hole 3 of the base 1. The interior of the outer tube 4 is hollow, allowing the insertion rod 5 to be inserted into the outer tube 4 and to move within it. A limiting slide 6 is provided on the outer wall of the insertion rod 5, extending along its length. There are two limiting slides 6 located on either side of the outer wall of the insertion rod 5. A limiting protrusion 7 is provided on the inner wall of the outer tube 4. 7 extends along the length of the outer tube 4. When the insertion rod 5 enters the outer tube 4, the limiting protrusion 7 is located in the limiting slide 6 on one side of the side wall of the insertion rod 5. A knob 8 is also provided on the outer tube 4, and a threaded rod 9 is provided on the knob 8. The threaded rod 9 penetrates the side wall of the outer tube 4, so that the threaded rod 9 is inserted into the limiting slide 6. The knob 8 drives the threaded rod 9 to rotate, which can control the threaded rod 9 to extend and retract in the outer tube 4. When it is necessary to adjust the height of the lifting structure, the knob 8 is rotated, so that the knob 8 drives the threaded rod. 9. Retract the threaded rod 9 to separate it from the limiting slide 6. Then adjust the depth of the insertion rod 5 into the outer sleeve 4. When locking the lifting structure, turn the knob 8 to make the threaded rod 9 extend and contact the bottom wall of the limiting slide 6. The threaded rod 9 and the limiting protrusion 7 will squeeze and limit the insertion tube. Rubber layers are provided on both the limiting protrusion 7 and the threaded rod 9. When the lifting structure is locked, the rubber layers are in contact with the bottom wall of the limiting slide 6 to increase friction and prevent the insertion rod 5 from sliding.
[0023] A rotating arm 10 is located at the upper end of the insertion rod 5. One end of the rotating arm 10 is connected to the insertion rod 5 via a first damping shaft, and the other end of the rotating arm 10 is a free end. The first damping shaft allows the rotating arm 10 to rotate around the insertion rod 5. A support plate 11 is also provided on the rotating arm 10, located at the upper end of the rotating arm 10. The user can place their arm on the support plate 11 of the rotating arm 10. A second damping shaft is also provided on the free end of the rotating arm 10, and is connected to the operating arm via the second damping shaft. The operating arm can rotate around the rotating arm 10. The operating arm includes a rotating assembly 12, a telescopic rod, and a planting head 18. The rotating assembly 12 is connected to the second damping shaft on the rotating arm 10. The rotating shaft can drive the rotating assembly 12 to rotate. The rotating assembly 12 has an annular cross-section. An annular limiting groove 13 is provided on the inner annular sidewall of the rotating assembly 12. The telescopic rod includes a limiting sleeve 14 and a connecting rod 15. The limiting sleeve 14 has a cylindrical barrel structure. A circular limiting block 16 is provided at the bottom of the limiting sleeve 14. The circular limiting block 16 is located in the annular limiting groove 13. The circular limiting block 16 can drive the limiting sleeve 14 to rotate in the annular limiting groove 13. An electric telescopic cylinder is provided in the circular limiting sleeve 14. One end of the connecting rod 15 is located at the telescopic end of the electric telescopic cylinder. An implant head 18 is provided on the other end of the connecting rod 15. The implant head 18 can be used to perform drilling operations on the maxilla and mandible.
[0024] The electric telescopic cylinder can drive the connecting rod 15 to move within the limiting sleeve 14. Roller slideways 19 are provided on the inner wall of the limiting sleeve 14, extending along its length. There are three roller slideways 19 arranged in a circular array around the inner wall of the limiting sleeve 14. Three limiting pulleys 20 are also provided on the side wall of the connecting rod 15, arranged in a circular array around the connecting rod 15. Each limiting pulley 20 is located within one of the three roller slideways 19, and the movement is controlled by limiting the movement of the connecting rod. The pulley 20 moves within the roller slide 19, making it easier for the connecting rod 15 to move within the limiting sleeve 14. Furthermore, the cooperation between the limiting pulley 20 and the roller slide 19 prevents the connecting rod 15 from easily shifting. A control switch 21 is provided on the outer wall of the limiting sleeve 14. The control switch 21 can control the operation of the electric telescopic cylinder, which drives the connecting rod 15 to move, thereby achieving the extension and retraction of the telescopic rod. This makes it easier to adjust the implant head 18, thus enabling better drilling operations on the maxilla and mandible.
[0025] In use, place the base 1 on the ground and screw the outer sleeve 4 into the threaded hole 3 on the base 1. Then, turn the knob 8 to move the threaded rod 9 away from the limiting slide 6 of the insertion rod 5, allowing the insertion rod 5 to move up and down within the outer sleeve 4. After adjusting to the appropriate position, turn the knob 8 to insert the threaded rod 9 into the limiting slide 6 of the insertion rod 5, fixing the height of the insertion rod 5. Then, rotate the rotating arm 10 to the corresponding angle, and medical staff can place their arms on the support plate 11 for easier control of the operating arm to perform dental implantation. The length of the telescopic rod can be controlled by the control switch 21 on the limiting sleeve 14. The operating arm can also be rotated to different angles as needed by using the annular limiting groove 13 and the circular limiting block 16, making angle adjustment and calibration more convenient when drilling holes for dental implantation in the mandible and maxilla.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style 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 robotic arm for dental implantation, comprising a base, a lifting structure, a rotating arm, and an operating arm, characterized in that: The lifting structure includes an outer sleeve and an insertion rod. A rotating arm is located at the upper end of the insertion rod. One end of the rotating arm is connected to the insertion rod via a first damping shaft. The other end of the rotating arm is a free end, and a second damping shaft is also provided on the free end of the rotating arm. The second damping shaft is connected to the operating arm, which can rotate around the rotating arm. The operating arm includes a rotating assembly, a telescopic rod, and a planting head. The rotating assembly is connected to the second damping shaft on the rotating arm. The second damping shaft can drive the rotating assembly to rotate. The rotating assembly has an annular cross-section, and an annular limiting groove is provided on the inner annular sidewall of the rotating assembly. The telescopic rod includes a limiting sleeve and a connecting rod. The limiting sleeve has a cylindrical barrel structure, and a circular limiting block is provided at the bottom of the limiting sleeve. The circular limiting block is located in the annular limiting groove and can drive the limiting sleeve to rotate within the annular limiting groove. An electric telescopic cylinder is provided inside the circular limiting sleeve. One end of the connecting rod is located at the telescopic end of the electric telescopic cylinder, and the other end of the connecting rod is provided with the planting head.
2. The robotic arm for dental implantation according to claim 1, characterized in that: The upper end of the base is provided with a threaded hole, which is located at the center of the base. The cross-section of the outer tube and the insertion rod are both circular. The lower end of the outer tube is provided with an external thread, which connects to the threaded hole of the base through the external thread.
3. The robotic arm for dental implantation according to claim 1, characterized in that: The base is cylindrical and placed on the ground. The bottom of the base is equipped with an anti-slip mat made of rubber.
4. The robotic arm for dental implantation according to claim 1, characterized in that: The outer tube has a hollow structure, and the insertion rod is set inside the outer tube and can move inside the outer tube. The outer wall of the insertion rod is provided with a limiting slide, which extends along the length of the insertion rod. There are two limiting slides, which are located on both sides of the outer wall of the insertion rod. The inner wall of the outer tube is provided with a limiting protrusion, which extends along the length of the outer tube. When the insertion rod enters the outer tube, the limiting protrusion is located in the limiting slide on one side of the side wall of the insertion rod.
5. The robotic arm for dental implantation according to claim 4, characterized in that: The outer tube is also equipped with a knob, which has a threaded rod. The threaded rod penetrates the side wall of the outer tube and is inserted into the limiting slide. Both the limiting protrusion and the threaded rod are provided with a rubber layer.
6. The robotic arm for dental implants according to claim 1, characterized in that: The inner wall of the limiting sleeve is provided with roller slides, which are arranged along the length of the limiting sleeve. There are three roller slides, which are arranged in a circular array around the inner wall of the limiting sleeve. In addition, three limiting pulleys are provided on the side wall of the connecting rod, which are arranged in a circular array around the connecting rod. The three limiting pulleys are located in the three roller slides respectively, and can move within the roller slides by means of the limiting pulleys.
Citation Information
Patent Citations
Dental implant robot system and dental implant method
CN110559095B