Multi-arm open planting guide plate

Abstract

The invention provides a multi-arm open-type implantation guide plate, and relates to the technical field of dental implantation, the multi-arm open-type implantation guide plate comprises a body fixed on upper and lower jaw dentitions or jaw bones and a guide plate sleeving the outer side of the body and used for positioning, and the middle of the guide plate is provided with a central platform for realizing stable positioning by using a multi-point plane stabilization principle. By means of a unique stable guide mode supported by multiple guide rails on the guide plate, implanting is completed under whole-course direct vision of a doctor, hard and soft tissue interference can be found in time in a fully-open implanting operation area, meanwhile, due to the strong supporting force of the multiple guide rails, the effect of correcting implanting drill bit deflection caused by different bone mineral densities in the implanting operation area is achieved, and the implanting efficiency is improved. The common planting hole type preparation difficulty caused by the friction resistance of the guide ring of the existing single-hole guide ring is avoided, and the heat generated in an operation area is reduced; secondly, a guide plate of a fully-open operation area formed by the device is combined with a water supply system on the implant dental handpiece to be matched with a water injection hole formed in the central platform to automatically spray water in multiple directions, so that the cooling efficiency is greatly improved, the implant cavity can be effectively prevented from being overheated, and the preparation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of dental implant technology, and more specifically, to a multi-arm fully open implant guide. Background Technology

[0002] An implant guide is a surgical aid designed and manufactured specifically for the patient's edentulous area to improve implant precision. During implant surgery, dentists use the guide to precisely place the implant into the alveolar bone, effectively avoiding damage to nerves, blood vessels, and other vital tissues. It also allows for more rational tooth alignment after implantation, improving success rate and quality. The advent of implant guides is inseparable from the widespread use of dental cone-beam computed tomography (CBCT), which allows dentists to perform detailed and accurate three-dimensional assessments of bone topography. However, in clinical treatment, implant placement often deviates from the intended location. Implant simulation software integrates information from various three-dimensional imaging tools, combining important anatomical structures around the implant and the design requirements of the prosthesis to create a virtual implantation treatment plan. Based on the preoperative plan, a corresponding implant guide is fabricated, greatly improving implant accuracy. Existing static implant guide technologies mainly employ two methods: traditional post-molding positioning and drilling based on plaster models, and computer-aided design (CAD) / computer-aided manufacturing (CAD / CAD) techniques. Digital surgical guides (CAM) technology has been developed. While traditional techniques are simple to manufacture, they lack digital analysis of the patient's bone volume, resulting in low accuracy, and have been gradually phased out. Digital surgical guides, with the continuous advancement of computer imaging technology, have greatly improved the precision of implant surgery and can guide surgical planning preoperatively with a repair-oriented approach. They have now become commonly used guides in clinical implantation. However, existing implant surgery guides (partial or full-range) all have the following shortcomings: First, implant surgery assisted by digital surgical guides involves numerous steps. From image acquisition to surgical execution, the accumulation of errors throughout the workflow can affect the accuracy of implant placement. Second, existing implant guides adhere closely to the surgical mucosa, obstructing the surgical area and hindering the surgeon's real-time and effective monitoring of the implant drill's operation. This also makes them susceptible to interference from the hard and soft tissues of the surgical area. Third, existing implant guides often require dedicated guide tool kits, resulting in poor versatility of implant drills and frequent drill changes during use. Switching between the implant tool kit and the guide tool kit complicates the process. Finally, due to initial design limitations, existing implant guides are prone to increased friction and heat generation between the guide ring and drill during single-ring guided surgery due to increased lateral force, which also prevents adequate filling. Intraoperative water cooling requires an assistant to use a special tool through cooling holes, resulting in inconsistent cooling effectiveness. To avoid bone burns caused by heat generation during implant preparation, surgeons either reduce the rotation speed or repeatedly advance and retract the drill bit for cooling, both of which reduce surgical efficiency and the accuracy of implant cavity preparation. Furthermore, currently used implant guides are mostly made of medical-grade photosensitive resin, which suffers from poor heat dissipation, limited strength, and is prone to deformation, displacement, and breakage during surgery. Due to the inherent limitations of the material, deformation can occur over time. The presence of auxiliary structural components such as metal guide rings increases the size of the implant guide and requires sufficient surgical space to accommodate it. This makes it unsuitable for patients with limited openings, narrow mesiodistal gaps between implant sites, or insufficient surgical space, thus limiting its indications. Therefore, we have made improvements by proposing a three-arm open implant guide. Summary of the Invention

[0003] The purpose of this invention is to address the following shortcomings of existing implantation surgical guides: First, digitally guided implant surgery involves numerous steps, from image acquisition to surgical execution. Accumulated errors throughout the workflow can affect implant placement accuracy. Second, existing implant guides, closely fitted to the surgical site mucosa, obstruct the surgeon's view, hindering real-time and effective monitoring of the drill's movement. This obstruction makes the surgeon susceptible to interference from the hard and soft tissues of the surgical area. In such cases, single-ring guided implant surgery is prone to increased friction and heat generation due to increased lateral forces, which is also detrimental to uniform bone preparation around the implant site. Third, existing implant guides often require dedicated guide tool kits, resulting in poor drill versatility and frequent drill changes. Switching between the implant tool kit and the guide tool kit complicates the process. Finally, existing implant guides suffer from limitations in their initial design. Insufficient intraoperative water cooling is not feasible, requiring assistants to use specialized tools through cooling holes for cooling. This results in unstable cooling and increases the number of personnel needed during surgery. To avoid bone burns caused by heat generation during implant preparation, surgeons either reduce the rotation speed or repeatedly advance and retract the drill bit for cooling, both of which reduce surgical efficiency and the accuracy of implant preparation. Finally, the implant guides currently used are mostly made of medical photosensitive resin, which has poor heat dissipation, limited strength, and is prone to deformation, displacement, and breakage during surgery. Due to the limitations of the material itself, deformation may occur after prolonged placement. The presence of auxiliary structural components such as metal guide rings increases the size of the implant guide, and a certain amount of surgical space is required to accommodate it. This makes it unsuitable for patients with limited openings, narrow mesiodistal gaps between implant sites, or insufficient surgical space, thus limiting its indications.

[0004] To overcome the shortcomings of the aforementioned guide plates, facilitate clinical operation, and increase surgical safety, this invention provides a multi-arm open implantation guide plate to solve the above problems.

[0005] The application is as follows: The multi-arm open implant guide (taking the three-arm guide as an example) includes the jawbone alveolar bone body and the guide plate sleeved on the outside of the jawbone alveolar bone body for positioning. The guide plate has a central platform in the middle that uses the stabilizing principle of one or more triangles to achieve stable positioning. For edentulous patients, the positioning guide plate is directly fixed to the jawbone alveolar bone body by positioning pins.

[0006] As a preferred technical solution of this application, a guide groove runs through the middle of the central platform; and a guide post is provided at the bottom of the central platform in a triangular shape.

[0007] As a preferred technical solution of this application, the guide plate is provided with guide rails on both sides in a triangular or quadrilateral shape, the guide rails are C-shaped, and the guide rails are sleeved on the outside of the guide post.

[0008] As a preferred technical solution of this application, the top of the central platform is provided with a buckle, and the top of the buckle is provided with a buckle post.

[0009] As a preferred technical solution of this application, a dental handpiece is fitted inside the cavity of the fastener, and a top cover is provided on the top of the dental handpiece, and the bottom of the top cover matches the fastener.

[0010] As a preferred technical solution of this application, the central platform is fitted with an implant drill bit in the middle, the upper half of the implant drill bit extends through the bottom of the dental handpiece to its inner cavity, and the middle and lower part of the implant drill bit extends through the central platform and extends through the upper and lower jaw bodies to the interior of the upper and lower jaw bones during the operation.

[0011] As a preferred technical solution of this application, the implant drill bit, under the stable support of multiple guide rails, can still smoothly enter the implantation site of the jawbone when drilling the middle and lower working end, even when there is a large difference in bone density on the side wall of the implantation socket or the bone surface is uneven.

[0012] As a preferred technical solution of this application, the outer surface of the guide rail and guide post is laser-engraved with scale.

[0013] As a preferred technical solution of this application, the central platform has water injection holes arranged in a triangular pattern from top to bottom.

[0014] As a preferred technical solution of this application, the guide plate is made by resin printing, and the contact area of ​​the guide post and its guide rail can be made of metal to increase wear resistance and reduce friction.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: This device utilizes a unique three-column / multi-column guide rail system on the surgical guide plate for stable guidance, allowing for implantation under direct visualization by the dentist. The fully open surgical area allows for timely detection of hard and soft tissue interference. Furthermore, the strong support from multiple guide rails effectively corrects drill bit deviation caused by varying bone density in the implantation area, facilitating uniform cutting of the bone around the implant socket. This reduces implant deviation during placement and avoids the frictional resistance associated with single-hole guide rings, which can complicate implant socket preparation and reduce heat generation in the surgical area. Secondly, the fully open surgical area created by this device utilizes a built-in water supply system on the implant dental handpiece, combined with water injection holes on the central platform, for multi-directional automatic water spraying, significantly improving cooling efficiency and effectively preventing implantation deviation. The cavity overheating improves preparation efficiency; secondly, this guide plate avoids the space occupation of traditional metal guide rings, and can still achieve accurate guidance throughout the entire process in cases with narrow interdental spaces, especially enabling full monitoring of the final implant placement process, and real-time adjustment of the final vertical and horizontal position of the implant according to the condition of the bone tissue in the surgical area; finally, because metal is used as the material for the three-dimensional guide post, the marking scale can be transferred from the drill bit to the guide post, and the depth control of the implant can be displayed through the guide post, providing convenience for clinical observation and increasing the observation angle of the implant. By removing the clasp and clasp, the implant dental handpiece can be flexibly rotated in the mesial and distal horizontal planes during the operation to adjust the position of the implant dental handpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the three-arm open planting guide provided in this application; Figure 2 A top view of the structure of the three-arm open planting guide provided in this application; Figure 3 A schematic diagram of the connection structure of the three-arm open implant guide dental handpiece provided in this application; Figure 4 A schematic diagram of the connection structure of the central platform of the three-arm open planting guide provided in this application; Figure 5 This is a schematic diagram of the guide plate provided in this application, which is fixed to the jawbone of an edentulous patient.

[0017] The image shows: 1. Alveolar bone body of the jawbone; 2. Guide plate; 3. Guide rail; 4. Dental handpiece; 5. Top cover; 6. Snap post; 7. Snap ring; 8. Central platform; 9. Guide post; 10. Implant drill bit. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0019] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] Example 1, please refer to Figures 1-4 A guide plate 2 with multi-arm guide rails is installed on the teeth of the upper and lower jaws or directly fixed to the jaw alveolar bone body 1 by positioning pins and sleeved on the jaw alveolar bone body 1 for positioning. The guide plate 2 has a central platform 8 in the middle that uses multiple points (≥3) to determine the spatial plane and can achieve mutual restraint of lateral offset and reduce stress friction in lateral movement through multiple parallel guide rails, so as to achieve stable up and down movement of the movement trajectory and ensure stable positioning.

[0022] Furthermore, such as Figure 2 and Figure 3 As shown, the central platform (8) has a guide groove for planting drill bit through the middle; the bottom of the central platform 8 is surrounded by guide posts 9 in a triangular or polygonal open and dispersed manner, and the top of the guide posts 9 is fixedly connected to the bottom of the horizontal plate.

[0023] The guide plate 2 has multiple (≥3) open guide rails 3 on both sides. The guide rails 3 are C-shaped. If there is enough space, they can also be made into closed cylindrical guide rails to guide the guide post 9. The end of the guide post 9 is narrowed. The upper end of the guide rail 3 is designed as an open cone or round shield to facilitate the positioning of the guide rail 9. The guide rail 3 is sleeved on the outside of the guide post 9. The upper end of the guide rail is open in a trumpet shape and the end of the guide post is conical to facilitate initial positioning. The opening of the guide rail 3 can be enlarged or reduced in the horizontal cross section according to the fixation requirements (changing between 90° and 270°), but the direction of the openings must be able to constrain each other in three-dimensional space; the guide post 9 is marked with corresponding laser scale to facilitate feedback on the preparation depth of the drill bit in the bone tissue. The guide post 9 can be triangularly distributed at different locations on the labial / buccal and lingual / palatal sides of the tooth, allowing for a completely open implantation area. This facilitates observation of the implant cavity preparation and implant placement process, eliminating the need to remove the guide plate to check the implant cavity during the procedure. The three-point support effectively increases the stability of the guide rod (even when the stability is reduced due to large or small angles between the three horizontal guide rods), effectively counteracting lateral stress caused by uneven bone density during implantation. The dispersion of retention stress in the guide plate helps reduce the strength requirements of the local guide plate retention material, allowing for the exposure of more tooth morphology and facilitating timely correction of the relationship between the implant and adjacent teeth. The open surgical area also allows cooling water to be sprayed directly onto the drill bit through the injection port for effective cooling. Adjusting the common tilt direction of the three guide rails enables tilted implantation under direct vision, improving the safety of the implantation procedure. It avoids friction between the drill bit and guide rings in traditional guide plates, reducing heat generation and preventing a decrease in guiding accuracy due to friction.

[0024] Furthermore, such as Figure 3 and Figure 4 As shown, a buckle 7 is provided at the top of the central platform 8, and a buckle post 6 is provided at the top of the buckle 7, and the buckle post 6 is arc-shaped.

[0025] The dental handpiece 4 is fitted inside the post 6. The output end of the dental handpiece 4 extends through the guide groove in the middle of the central platform 8 to its bottom. The top of the dental handpiece is provided with a top cover 5, and the bottom of the top cover 5 matches the post 6 for fixing the implant handpiece and its guide plate. The retention ability can also be enhanced by opening a fixing groove on the surface of the implant handpiece.

[0026] The central platform 8 is fitted with an implant drill bit 10. The upper part of the implant drill bit 10 extends through the bottom of the dental handpiece 4 into its inner cavity, and the middle and lower part of the implant drill bit 10 extends through the central platform 8 and the jaw alveolar bone body 1 into the interior of the jaw alveolar bone body 1. The guide rail 3 and its guide post 9 are laser-engraved with graduations on their outer sides to facilitate a direct reflection of the implantation depth.

[0027] The interior of the central platform 8 is triangular with water injection holes from top to bottom. The water injection holes are located on the horizontal plates extending from the side wall of the central platform 8. The guide plate 2 is made of resin printing, but other metals or printing materials can also be used to make the guide plate. The water injection holes all point to the working end of the implantation drill 10, which can ensure sufficient cooling during the implantation procedure.

[0028] The guide plate 2 is made by resin printing, and some of the guide rails 3 and all of the guide posts 9 are made of standardized universal metal parts, which makes it easier to reduce the number of guide plate components when planting at different sites in the later stage.

[0029] The three sets of guide posts 9 can be flexibly adjusted in position within the horizontal triangle range, that is, the angle between the horizontal guide rods can be adjusted. The C-shaped guide rail 3 can be flexibly selected according to the positioning point, avoiding interference from misaligned teeth in patients with malocclusion.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A multi-armed open planting guide characterized in that, In the jaw alveolar bone body (1) and the sleeve set in the jaw alveolar bone body (1) for positioning the guide plate (2) with multi-arm guide rail, the middle part of the guide plate (2) is provided with a central platform (8) which realizes stable positioning by using the principle of triangular stability.

2. The multi-arm open planting guide of claim 1, wherein, The central platform (8) is provided with a guide groove for implant drill needle guidance in the middle part; the bottom of the central platform (8) is provided with guide columns (9) in a polygonal open and dispersed manner around the bottom.

3. The multi-arm open planting guide of claim 2, wherein, The guide plate (2) is provided with guide rails (3) in a multi-point dispersed open manner on both sides; the guide rail (3) is in a C-shaped form, the guide rail (3) is sleeved on the outside of the guide column (9), the upper end of the guide rail is in a trumpet-shaped open form, and the end of the guide column is in a conical form, which is convenient for initial positioning.

4. The multi-arm open planting guide of claim 3, wherein, The top of the central platform (8) is provided with a buckle ring (7), and the top of the buckle ring (7) is provided with a buckle column (6).

5. The multi-arm open planting guide of claim 4, wherein, The inner cavity of the buckle column (6) is sleeved with a dental handpiece (4), the top of the dental handpiece is provided with a top cover (5), and the bottom of the top cover (5) is matched with the buckle column (6), which is used for fixing the implant handpiece and its guide plate, and the surface of the implant handpiece can be provided with a fixed groove to enhance the retention capacity.

6. The multi-arm open planting guide of claim 5, wherein, The central platform (8) is sleeved with an implant drill needle (10) in the middle part, the upper half of the implant drill needle (10) extends to the inner cavity of the dental handpiece (4) through the bottom of the dental handpiece (4), and the middle and lower part of the implant drill needle (10) penetrates the central platform (8) and the jaw alveolar bone body (1), and can extend to the implant site in the jaw alveolar bone body (1).

7. The multi-arm open planting guide of claim 6, wherein, The outside of the guide rail (3) and the guide column (9) is laser engraved with scales.

8. The multi-arm open planting guide of claim 7, wherein, The inside of the central platform (8) is provided with water injection holes in a triangular distribution from top to bottom.

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