A registration fixture for dental implants
By designing a support and alignment device, the problem of inconvenience for single-person operation of dental implant registration devices has been solved, achieving single-handed fixation and accurate positioning and feeding of silicone rubber, thus improving the convenience and accuracy of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI HANHUA DENTAL LAB CO LTD
- Filing Date
- 2026-06-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing dental implant registration devices cannot achieve single-person handheld operation and fixation, as well as alignment-based feed supplementation, resulting in inconvenience in operation.
A registration and fixing device including a support device, a positioning device, and an alignment device was designed. The support device is fixed in the patient's oral cavity by the buckle and bolts. The alignment device uses the feed tube and alignment key to achieve single-handed operation for fixing and alignment-type feed supplementation of silicone rubber.
This technology enables single-person operation for fixing dental implants and accurately positioning and feeding silicone rubber, improving the convenience and accuracy of the operation and avoiding loosening and displacement of the registration device in the oral cavity.
Smart Images
Figure CN122423978A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, specifically to a registration and fixation device for dental implants. Background Technology
[0002] Dental implants are currently the ideal way to restore missing teeth. They do not actually plant a seed to make a tooth grow. Instead, through a small surgical procedure, an artificial tooth root made of materials such as pure titanium, which are highly compatible with human bone, is implanted into the alveolar bone. After the artificial tooth root and bone have integrated, a crown is then installed on it, thus completely restoring the appearance and chewing function of the tooth.
[0003] The biggest advantage of dental implants is that they restore the natural appearance and chewing function of missing teeth to the greatest extent possible without damaging healthy teeth, while maintaining the health of oral soft and hard tissues.
[0004] Currently, in the process of fitting dental implants, it is inconvenient for one person to operate the fitting device. While one person is operating the fitting device, another person needs to apply silicone rubber to the inside of the fitting device. This makes it impossible for the dental implant fitting device to perform single-person handheld operation for fixation and alignment-type feed supplementation. Therefore, a device is needed to improve upon the above problems. Summary of the Invention
[0005] To address the problems in the prior art, the present invention provides a registration and fixation device for dental implants.
[0006] The technical solution adopted by the present invention to solve its technical problem is: a registration and fixation device for dental implants, including a support device, positioning devices rotatably mounted on both sides of the support device, an alignment device slidably sleeved on the top of the support device, a support shaft fixedly mounted on the inner front end of a first positioning arm, a first ferrule rotatably mounted on the rear top of the first positioning arm, and a first bolt threadedly inserted into the front bottom of the first positioning arm. The support device includes a support arc frame, a second ferrule, a support side plate, a second positioning arm, and a displacement slide. The support side plate is fixedly mounted on the top of the side end of the second positioning arm, the second ferrule rotatably mounted on the front top of the second positioning arm, the support arc frame is fixedly mounted between the two support side plates, and the displacement slide is slidably inserted between the two support side plates, with the displacement slide located in front of the support arc frame.
[0007] Specifically, the alignment device includes a contact device and a docking device, with the contact device slidably inserted in front of the docking device.
[0008] Specifically, the contact device includes a registration sleeve, a lever, a feed tube, a first sliding sleeve, an extension rod, a plastic pad, a second bolt, a first alignment key, a hexagonal rod, a first spring, and a support cavity. The lever is fixedly installed at the top front end of the registration sleeve. The feed tube is symmetrically fixedly installed at the top end of the registration sleeve. The first sliding sleeve is fixedly installed at the rear center of the registration sleeve. The second bolt is threaded into the rear center of the first sliding sleeve. The plastic pad is fixedly installed at the front center of the second bolt. The extension rod is symmetrically fixedly installed at the top rear end of the registration sleeve. The support cavity is symmetrically fixedly installed at the top end of the registration sleeve. The first spring is fixedly installed inside the support cavity. The hexagonal rod slides through the support cavity and connects to the first spring. The first alignment key is fixedly installed at the end of the hexagonal rod opposite to the support cavity.
[0009] Specifically, the docking device includes a movable vertical rod, an extended side frame, a first rack, a connecting horizontal rod, a second alignment key, a guide rod, an accumulation cavity, a second rack, a transmission gear, a sealing head, a movable plug, a guide rod, a second spring, an alignment tube, and a second sliding sleeve. The movable vertical rod is slidably inserted into the center of the top of the accumulation cavity. The extended side frame is fixedly installed on both sides of the outer ring of the movable vertical rod. The first rack is fixedly installed at the end of the extended side frame away from the movable vertical rod. The transmission gear is rotatably installed at both ends of the accumulation cavity. The guide rod is symmetrically fixedly installed at the bottom of the front end of the accumulation cavity. The connecting horizontal rod is slidably sleeved on the guide rod. On the outer ring of the rod, the second alignment key is symmetrically and fixedly installed at the bottom end of the connecting crossbar near the guide round rod, the second rack is fixedly installed at both ends of the connecting crossbar, the alignment tube is symmetrically and fixedly installed at the front end of the accumulation cavity, the guide side rod is fixedly installed at the front end of the accumulation cavity, and the guide side rod is located on the outer ring of the alignment tube, the sealing head is slidably sleeved on the outer ring of the guide side rod, the second spring is fixedly installed between the accumulation cavity and the sealing head, and the second spring is located on the outer ring of the guide side rod, the movable plug is fixedly installed at the bottom end of the movable vertical rod, and the second sliding sleeve is symmetrically and fixedly installed at the bottom end of the accumulation cavity.
[0010] Specifically, the support shaft is rotatably mounted on the inner bottom end of the second positioning arm, the first sliding sleeve is slidably sleeved on the outer ring of the displacement slide, the second sliding sleeve is slidably sleeved on the outer ring of the support arc frame, the extension rod is slidably inserted into the inside of the second sliding sleeve, and the second rack and the first rack mesh with the transmission gear.
[0011] Specifically, threaded holes are provided at the bottom of the first positioning arm and the bottom of the second positioning arm, and the threaded holes are distributed in a ring. The two ends of the displacement slide are fixedly installed with key, and a slot is provided inside the side end of the support side plate near the displacement slide.
[0012] Specifically, the first alignment key and the second alignment key are horizontally aligned, and the opposite side surfaces of the first alignment key and the second alignment key are inclined at 45°. The feed tube and the alignment tube are horizontally aligned. An anti-detachment plate is fixedly installed at the bottom end of the guide rod. A guide hole is opened inside the second sliding sleeve.
[0013] Specifically, the top end of the feed tube has a through hole, and the through holes are distributed in a ring. The top end of the registration sleeve has symmetrical circular holes, and the feed tube communicates with the circular holes.
[0014] The beneficial effects of this invention are: First, this invention involves rotating a first positioning arm onto a second positioning arm, with a first bolt threaded into the interior of both the first and second positioning arms. This allows the first and second positioning arms to be secured inside the patient's mouth. Furthermore, the first and second locking sleeves prevent slippage of the first and second positioning arms. The insertion of the first bolt into the interior of the first and second positioning arms prevents them from loosening, thus enabling single-handed operation and fixation of the registration device.
[0015] Second, this invention uses a displacement slide to move the registration sleeve, allowing the feed tube to be inserted into the alignment tube and communicate with it. This allows the accumulation cavity to communicate with the feed tube. The first and second alignment keys engage to confine the feed tube within the accumulation cavity, preventing it from becoming loose. Simultaneously, the downward movement of the movable vertical rod pushes the silicone rubber inside the accumulation cavity into the registration sleeve via the movable plug. Furthermore, the transmission gear moves the second rack upward, causing the second alignment key to misalign with the first alignment key, thereby releasing the registration sleeve and allowing it to move to contact the patient's teeth, completing the silicone rubber alignment feed replenishment. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention; Figure 2 This is a three-dimensional structural diagram of the positioning device from the front view in this invention; Figure 3 This is a three-dimensional structural diagram of the support device from the front view in this invention; Figure 4 This is a three-dimensional structural diagram of the alignment device from the front view in this invention; Figure 5 This is a partial cross-sectional schematic diagram of the contact device in this invention; Figure 6 In this invention Figure 5 A magnified view of part A; Figure 7 This is a partial cross-sectional schematic diagram of the docking device in this invention; Figure 8 In this invention Figure 7 A magnified view of part B; Figure 9 This is a three-dimensional structural diagram of the docking device from the rear view in this invention.
[0018] In the diagram: 1-Positioning device, 2-Supporting device, 3-Alignment device, 4-First positioning arm, 5-First clamping sleeve, 6-First bolt, 7-Supporting shaft, 8-Supporting arc frame, 9-Second clamping sleeve, 10-Supporting side plate, 11-Second positioning arm, 12-Displacement slide, 13-Contact device, 14-Dating device, 15-Registration sleeve, 16-Pulley, 17-Feed tube, 18-First sliding sleeve, 19-Extension rod, 20-Plastic pad, 21-The 21-Second bolt, 22-First alignment key, 23-Hexagonal rod, 24-First spring, 25-Support cavity, 26-Modible vertical rod, 27-Extension side frame, 28-First rack, 29-Connecting crossbar, 30-Second alignment key, 31-Guide round rod, 32-Accumulation cavity, 33-Second rack, 34-Transmission gear, 35-Sealing head, 36-Modible plug, 37-Guide side rod, 38-Second spring, 39-Alignment tube, 40-Second sliding sleeve. Detailed Implementation
[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0020] The invention will be further described below with reference to the accompanying drawings.
[0021] like Figure 1 , Figure 2 and Figure 3As shown, a registration and fixation device for dental implants according to the present invention includes a support device 2, positioning devices 1 rotatably mounted on both sides of the support device 2, an alignment device 3 slidably sleeved on the top of the support device 2, a support shaft 7 fixedly mounted on the inner front end of a first positioning arm 4, a first ferrule 5 rotatably mounted on the top of the rear end of the first positioning arm 4, and a first bolt 6 threadedly inserted into the bottom of the front end of the first positioning arm 4. The support device 2 includes a support arc frame 8, a second ferrule 9, a support side plate 10, a second positioning arm 11, and a displacement slide 12. The support side plate 10 is fixedly mounted on the top of the side end of the second positioning arm 11, the second ferrule 9 is rotatably mounted on the top of the front end of the second positioning arm 11, the support arc frame 8 is fixedly mounted between the two support side plates 10, and the displacement slide 12 is slidably inserted between the two support side plates 10, with the displacement slide 12 located in front of the support arc frame 8.
[0022] like Figure 4 The alignment device 3 includes a contact device 13 and a docking device 14. The contact device 13 is slidably inserted in front of the docking device 14 and can support the contact device 13 to slide along a straight line.
[0023] like Figure 5 and Figure 6 The contact device 13 includes a registration sleeve 15, a lever 16, a feed tube 17, a first sliding sleeve 18, an extension rod 19, a plastic pad 20, a second bolt 21, a first alignment key 22, a hexagonal rod 23, a first spring 24, and a support cavity 25. The lever 16 is fixedly installed at the top front end of the registration sleeve 15. The feed tube 17 is symmetrically fixedly installed at the top end of the registration sleeve 15. The first sliding sleeve 18 is fixedly installed at the rear center of the registration sleeve 15. The second bolt 21 is threaded into the rear center of the first sliding sleeve 18. The plastic pad 20 is fixedly installed at the front end of the second bolt 21. At the center, the extension rod 19 is symmetrically fixedly installed at the top rear end of the registration sleeve 15, the support cavity 25 is symmetrically fixedly installed at the top end of the registration sleeve 15, the first spring 24 is fixedly installed inside the support cavity 25, the hexagonal rod 23 slides through the support cavity 25 and is connected to the first spring 24, and the first alignment key 22 is fixedly installed at the end of the hexagonal rod 23 away from the support cavity 25. The elasticity of the first spring 24 can drive the first alignment key 22 to move and reset. At the same time, by sliding the hexagonal rod 23 inside the support cavity 25, the first alignment key 22 can be supported to move in a straight line.
[0024] like Figure 7 , Figure 8 and Figure 9The docking device 14 includes a movable vertical rod 26, an extension side frame 27, a first rack 28, a connecting horizontal rod 29, a second alignment key 30, a guide round rod 31, an accumulation cavity 32, a second rack 33, a transmission gear 34, a sealing head 35, a movable plug 36, a guide side rod 37, a second spring 38, an alignment tube 39, and a second sliding sleeve 40. The movable vertical rod 26 is slidably inserted into the center of the top of the accumulation cavity 32. The extension side frame 27 is fixedly installed on both sides of the outer ring of the movable vertical rod 26. The first rack 28 is fixedly installed on the end of the extension side frame 27 away from the movable vertical rod 26. The transmission gear 34 is rotatably installed at both ends of the accumulation cavity 32. The guide round rod 31 is symmetrically fixedly installed at the bottom of the front end of the accumulation cavity 32. The connecting horizontal rod 29 is slidably sleeved on the outer ring of the guide round rod 31. The second alignment key 30 is symmetrically fixedly installed on the connecting horizontal rod 29. The crossbar 29 is located near the bottom end of the guide rod 31. The second rack 33 is fixedly installed at both ends of the connecting crossbar 29. The alignment tube 39 is symmetrically fixedly installed inside the front end of the accumulation cavity 32. The guide side rod 37 is fixedly installed inside the front end of the accumulation cavity 32, and the guide side rod 37 is located on the outer ring of the alignment tube 39. The sealing head 35 is slidably sleeved on the outer ring of the guide side rod 37. The second spring 38 is fixedly installed between the accumulation cavity 32 and the sealing head 35, and the second spring 38 is located on the outer ring of the guide side rod 37. The movable plug 36 is fixedly installed at the bottom end of the movable vertical rod 26. The second sliding sleeve 40 is symmetrically fixedly installed at the bottom end of the accumulation cavity 32. With the setting of the second spring 38, the inside of the alignment tube 39 can be sealed when the sealing head 35 is not squeezed by the feed tube 17, so as to prevent the silicone rubber inside the accumulation cavity 32 from leaking out.
[0025] The support shaft 7 is rotatably mounted on the inner bottom end of the second positioning arm 11. The first sliding sleeve 18 is slidably sleeved on the outer ring of the displacement slide 12, and the second sliding sleeve 40 is slidably sleeved on the outer ring of the supporting arc frame 8. The extension rod 19 is slidably inserted into the inside of the second sliding sleeve 40. The second rack 33 and the first rack 28 mesh with the transmission gear 34. Threaded holes are provided at the bottom of the first positioning arm 4 and the bottom end of the second positioning arm 11, and the threaded holes are distributed in a ring. Keys are fixedly installed at both ends of the displacement slide 12, and the supporting side plate 1... A slot is provided inside the side end near the displacement slide 12. The first alignment key 22 and the second alignment key 30 are horizontally aligned, and the side end surfaces of the first alignment key 22 and the second alignment key 30 are inclined at 45°. The feed tube 17 and the alignment tube 39 are horizontally aligned. An anti-detachment plate is fixedly installed at the bottom end of the guide rod 31. A guide hole is provided inside the second sliding sleeve 40. A through hole is provided at the top end of the feed tube 17, and the through holes are distributed in a ring. A round hole is symmetrically provided at the top end of the registration sleeve 15, and the feed tube 17 communicates with the round hole.
[0026] The working principle is as follows: During use, the patient can open their mouth, and then place the first positioning arm 4 and the second positioning arm 11 inside the patient's mouth until the first positioning arm 4 contacts the lower teeth and the second positioning arm 11 contacts the upper teeth, thus supporting the patient's upper and lower jaws and preventing them from closing. Subsequently, the first retainer 5 can be fastened to the lower teeth, and the second retainer 9 can be fastened to the upper teeth, thus preventing the second positioning arm 11 and the first positioning arm 4 from loosening inside the patient's mouth. Then, the first sliding sleeve 18 can slide on the outer ring of the displacement slide 12, thus supporting the rotation adjustment of the registration sleeve 15 until the registration sleeve 15 is aligned with the corresponding registration area inside the patient's mouth. Finally, the second bolt 21 is turned. This allows the plastic pad 20 to be fastened to the displacement slide 12, and the registration sleeve 15 to be fixed on the displacement slide 12. Simultaneously, the extension rod 19 is slidably inserted into the second sliding sleeve 40, allowing the registration sleeve 15 to rotate synchronously with the accumulation cavity 32 during displacement. The second sliding sleeve 40 rotates and fits onto the outer ring of the supporting arc frame 8, allowing the accumulation cavity 32 to rotate and be adjusted. After the registration sleeve 15 is fixed, it can be moved forward, sliding in the slots inside the side plate 10 via the latches at both ends of the displacement slide 12, allowing the registration sleeve 15 to move linearly until it fits onto the area in the patient's oral cavity requiring registration. Then, the registration sleeve 15 is pulled backward. Pulling causes the registration sleeve 15 to drive the feed tube 17 into the alignment tube 39. At this time, the feed tube 17 can push the sealing head 35 out to the rear end. The feed tube 17 has a through hole on its outer ring, which allows it to communicate with the inside of the accumulation cavity 32. At the same time, when the feed tube 17 is inserted into the alignment tube 39, the first alignment key 22 can move past the second alignment key 30. Due to the setting of the first spring 24, when the first alignment key 22 contacts the second alignment key 30, it can be squeezed by the second alignment key 30 to contact the support cavity 25. Furthermore, when the first alignment key 22 passes the second alignment key 30, the first spring 24 can drive the first alignment key 22 to move and reset, so that the first alignment key 22 can be located at the second alignment key 30. To prevent the feed tube 17 from dislodging from the alignment tube 39, the user can press the movable vertical rod 26 downwards, causing the movable plug 36 to move downwards inside the accumulation cavity 32. This squeezes the silicone rubber inside the accumulation cavity 32, allowing the silicone rubber to enter the registration sleeve 15 through the through hole inside the feed tube 17 and accumulate there. Simultaneously, when the movable vertical rod 26 is pressed down to its limit, it causes the first rack 28 to move downwards along the surface of the transmission gear 34, allowing the transmission gear 34 to drive the second rack 33 upwards. This causes the second alignment key 30 to misalign with the first alignment key 22. At this point, the first alignment key 22 is no longer restricted by the second alignment key 30, and the user can push the registration sleeve 15 towards the front.Until the silicone rubber inside the registration sleeve 15 moves to contact the area requiring registration on the patient, and the silicone rubber solidifies, the registration sleeve 15 can be moved rearward to facilitate the removal of the solidified silicone rubber. Furthermore, when the feed tube 17 is removed from the alignment tube 39, the elasticity of the second spring 38 will cause the sealing head 35 to quickly reset, allowing the sealing head 35 to seal the alignment tube 39. Simultaneously, the sealing head 35 slides onto the outer ring of the guide rod 37, supporting its linear movement and improving the accuracy of the connection between the sealing head 35 and the alignment tube 39. Afterward, the first positioning arm 4 and the second positioning arm 11 can be removed from the patient's oral cavity, completing the procedure. During use, the device is rotatably mounted on the inner bottom of the second positioning arm 11 via the support shaft 7, allowing the first positioning arm 4 to be rotated and adjusted, facilitating the support of the patient's oral cavity at different angles. Simultaneously, through… The design of the lever 16 facilitates the user's ability to move the registration sleeve 15 as a whole. Simultaneously, the displacement slide 12 allows for linear movement along the side end of the support plate 10, ensuring the registration sleeve 15 moves linearly with each movement and preventing positional shifts during subsequent alignment. Furthermore, a filling port with a plug at the rear end of the accumulation cavity 32 allows for easy filling with silicone rubber. A removable cap at the top of the accumulation cavity 32 facilitates the removal of any remaining silicone rubber. The connecting crossbar 29 slides onto the outer ring of the guide rod 31, supporting its linear up-and-down movement. An anti-detachment plate is fixed to the bottom of the guide rod 31 to prevent the connecting crossbar 29 from falling downwards. This completes the process.
[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A registration and fixation device for dental implants, comprising a support device (2), wherein positioning devices (1) are rotatably mounted on both sides of the support device (2), and an alignment device (3) is slidably sleeved on the top of the support device (2), characterized in that: The support shaft (7) is fixedly installed inside the front end of the first positioning arm (4), the first ferrule (5) is rotatably installed at the top of the rear end of the first positioning arm (4), and the first bolt (6) is threaded into the bottom of the front end of the first positioning arm (4). The support device (2) includes a support arc frame (8), a second ferrule (9), a support side plate (10), a second positioning arm (11), and a displacement slide (12). The support side plate (10) is fixedly installed at the top of the side end of the second positioning arm (11), the second ferrule (9) is rotatably installed at the top of the front end of the second positioning arm (11), the support arc frame (8) is fixedly installed between the two support side plates (10), and the displacement slide (12) is slidably inserted between the two support side plates (10) and is located in front of the support arc frame (8).
2. The registration and fixation device for dental implants according to claim 1, characterized in that: The alignment device (3) includes a contact device (13) and a docking device (14), wherein the contact device (13) is slidably inserted in front of the docking device (14).
3. The registration and fixation device for dental implants according to claim 2, characterized in that: The contact device (13) includes a registration sleeve (15), a lever (16), a feed tube (17), a first sliding sleeve (18), an extension rod (19), a plastic pad (20), a second bolt (21), a first alignment key (22), a hexagonal rod (23), a first spring (24), and a support cavity (25). The lever (16) is fixedly installed at the top front end of the registration sleeve (15), the feed tube (17) is symmetrically fixedly installed at the top end of the registration sleeve (15), the first sliding sleeve (18) is fixedly installed at the rear center of the registration sleeve (15), and the second bolt (21) is threaded. The plastic pad (20) is fixedly installed at the center of the front end of the second bolt (21), the extension rod (19) is symmetrically fixedly installed at the rear end of the registration sleeve (15), the support cavity (25) is symmetrically fixedly installed at the top end of the registration sleeve (15), the first spring (24) is fixedly installed inside the support cavity (25), the hexagonal rod (23) slides through the support cavity (25) and is connected to the first spring (24), and the first alignment key (22) is fixedly installed at the end of the hexagonal rod (23) away from the support cavity (25).
4. The registration and fixation device for dental implants according to claim 3, characterized in that: The docking device (14) includes a movable vertical rod (26), an extension side frame (27), a first rack (28), a connecting horizontal rod (29), a second alignment key (30), a guide rod (31), an accumulation cavity (32), a second rack (33), a transmission gear (34), a sealing head (35), a movable plug (36), a guide side rod (37), a second spring (38), an alignment tube (39), and a second sliding sleeve (40). The movable vertical rod (26) is slidably inserted into the center of the top of the accumulation cavity (32). The extension side frame (27) is fixedly installed on both sides of the outer ring of the movable vertical rod (26). The first rack (28) is fixedly installed at the end of the extension side frame (27) away from the movable vertical rod (26). The transmission gear (34) is rotatably installed at both ends of the accumulation cavity (32). The guide rod (31) is symmetrically fixedly installed at the bottom of the front end of the accumulation cavity (32). The connecting horizontal rod (29) The second alignment key (30) is symmetrically fixedly installed on the bottom end of the connecting crossbar (29) near the guide rod (31), the second rack (33) is fixedly installed on both ends of the connecting crossbar (29), the alignment tube (39) is symmetrically fixedly installed on the front end of the inside of the accumulation cavity (32), the guide side rod (37) is fixedly installed on the front end of the inside of the accumulation cavity (32), and the guide side rod (37) is located on the outer ring of the alignment tube (39), the sealing head (35) is slidably fitted on the outer ring of the guide side rod (37), the second spring (38) is fixedly installed between the accumulation cavity (32) and the sealing head (35), and the second spring (38) is located on the outer ring of the guide side rod (37), the movable plug (36) is fixedly installed on the bottom end of the movable vertical rod (26), and the second sliding sleeve (40) is symmetrically fixedly installed on the bottom end of the accumulation cavity (32).
5. The registration and fixation device for dental implants according to claim 4, characterized in that: The support shaft (7) is rotatably mounted on the inner bottom end of the second positioning arm (11). The first sliding sleeve (18) is slidably sleeved on the outer ring of the displacement slide (12). The second sliding sleeve (40) is slidably sleeved on the outer ring of the support arc frame (8). The extension rod (19) is slidably inserted into the inside of the second sliding sleeve (40). The second rack (33) and the first rack (28) mesh with the transmission gear (34).
6. The registration and fixation device for dental implants according to claim 5, characterized in that: The bottom of the first positioning arm (4) and the bottom of the second positioning arm (11) are provided with threaded holes, and the threaded holes are distributed in a ring. The two ends of the displacement slide (12) are fixedly installed with key, and the inside of the side end of the support side plate (10) near the displacement slide (12) is provided with a slot.
7. The registration and fixation device for dental implants according to claim 6, characterized in that: The first alignment key (22) and the second alignment key (30) are horizontally aligned, and the side surfaces of the first alignment key (22) and the second alignment key (30) are inclined at 45°. The feed tube (17) and the alignment tube (39) are horizontally aligned. An anti-detachment plate is fixedly installed at the bottom end of the guide rod (31). A guide hole is opened inside the second sliding sleeve (40).
8. The registration and fixation device for dental implants according to claim 7, characterized in that: The top end of the feed tube (17) is provided with a through hole, and the through holes are distributed in a ring. The top end of the registration sleeve (15) is provided with a circular hole, and the feed tube (17) communicates with the circular hole.