A kind of implant guide plate suitable for maxillary sinus lateral lift surgery

Abstract

The utility model belongs to oral cavity implantation technical field, concretely relates to a kind of implantation guide plate suitable for maxillary sinus outer lifting operation.The kind suitable for maxillary sinus outer lifting operation's implantation guide plate, including implant body guide seat and windowing positioning plate, implant body guide seat is fixedly sleeved on upper tooth;Windowing positioning plate is set in implant body guide seat top and is set up along vertical direction upwards, and it is inlaid with maxillary sinus outer surface, including the cooling window and the positioning window that are set apart along windowing positioning plate length direction, the drainage channel formed between cooling window and positioning window and the support plate set in the top of windowing positioning plate and positioning window opposite. By limiting the specific structure of windowing positioning plate, the cooling window and the drainage channel are added on the windowing positioning plate, the coolant can be accurately introduced into the contact area between the windowing cutter located in the positioning window and the outer bone surface of maxillary sinus, the cooling effect is realized, the bone burn is avoided, and the safety of operation is improved.

Description

Technical Field

[0001] This utility model belongs to the field of oral implant technology, specifically relating to an implant guide plate suitable for maxillary sinus lift surgery. Background Technology

[0002] In recent years, dental implant restoration has gradually become a routine treatment for missing teeth. Among them, maxillary sinus lift is a bone augmentation surgery that addresses insufficient bone volume in the maxillary posterior teeth region, primarily used to provide sufficient support for dental implants. When the maxilla is not high enough, the dentist will surgically lift the maxillary sinus floor mucosa, fill it with bone substitute material, promote bone tissue regeneration, and thus create stable implantation conditions for the implant.

[0003] Since the maxillary sinuses are the largest pair of cavities within the maxilla, in cases of insufficient height in certain posterior tooth areas, a lateral approach is often required for sinus lift and bone grafting. Because the outer surface of the maxillary sinus is a continuous, smooth arc, it is very difficult to visually define the extent of the sinus cavity within the bone wall, as well as the required lift height and width. This can lead to insufficient judgment by the surgeon, resulting in inaccurate positioning of the sinus opening during maxillary sinus lift surgery, leading to openings that are too large or too small, too high or too low. To address these technical issues, Chinese Patent Publication No. CN216535577U discloses an external lift guide plate. This plate provides positioning for the opening during maxillary sinus lift surgery, and the implant positioning guide ring holes provide positioning for simultaneous implant placement.

[0004] However, the aforementioned patent still has problems. During the lateral sinus fenestration process, the fenestration tool cuts the outer bone surface of the maxillary sinus by rotating at high speed. However, high-speed cutting generates a lot of heat. At the same time, since the maxillary sinus fenestration surgery is performed relatively posteriorly, on the one hand, the water outlet of the flushing device cannot act on the high-temperature area at a close position. On the other hand, the guide plate and fenestration tool that fit the bone will also block the water flow to a certain extent, making it impossible to cool down the area where the fenestration tool is acting. The heat cannot be effectively dissipated, which may cause side effects such as bone burns. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an implant guide plate suitable for maxillary sinus external lift surgery that reduces surgical trauma.

[0006] The present invention adopts the following technical solution:

[0007] An implant guide for maxillary sinus lift surgery includes an implant guide seat and a fenestration positioning plate. The implant guide seat is fixedly fitted onto the upper tooth. The fenestration positioning plate extends vertically upward and is positioned on top of the implant guide seat, fitting against the outer surface of the maxillary sinus. It includes a cooling window and a positioning window spaced apart along the length of the fenestration positioning plate, a drainage channel formed between the cooling window and the positioning window, and a support plate positioned on top of the fenestration positioning plate opposite to the positioning window. The support plate can be used to support the gingival flap cut on the outer bone surface of the maxillary sinus. The drainage channel can guide coolant from the cooling window to the positioning window to cool the fenestration tool located in the positioning window. The positioning window corresponds to the position of the maxillary sinus fenestration.

[0008] Furthermore, the window positioning plate includes a connecting section connected to the implant guide seat and a positioning section extending upward from the top of the connecting section, and the support plate extends outward from the top of the positioning section.

[0009] Furthermore, the cooling window and the positioning window are arranged alternately from the outside to the inside along the length of the positioning segment, and the drainage channel is formed on the inner side of the positioning segment opposite to the maxillary sinus.

[0010] Furthermore, multiple drainage channels are provided, which are arranged sequentially on the positioning section along the vertical direction.

[0011] Furthermore, the positioning segment includes an extension platform that protrudes outward from the outer side of the positioning segment and an inclined support surface that is inclined from one end of the extension platform toward the positioning window.

[0012] Furthermore, the implant guide seat includes an arc-shaped support groove formed therein that is adapted to the upper tooth, a guide member disposed inside the arc-shaped support groove, and a fixation member disposed inside the arc-shaped support groove that is adapted to the tooth on the side near the missing tooth position.

[0013] Furthermore, the guide member includes a guide block extending upward from the bottom surface of the arc-shaped support groove and a guide hole extending downward from the top surface of the guide block.

[0014] Furthermore, the fixing member includes a plurality of arc-shaped fixing parts arranged sequentially in the arc-shaped support groove along the length direction of the implant guide seat, and a plurality of tooth indicator holes spaced apart on the plurality of arc-shaped fixing parts.

[0015] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are as follows: By defining the specific structure of the fenestration positioning plate, the present application adds a cooling window and a drainage channel to the fenestration positioning plate, which can accurately introduce coolant into the contact area between the fenestration tool and the outer bone surface of the maxillary sinus located in the positioning window, thereby achieving a cooling effect, avoiding bone burns, and improving the safety of the surgery; at the same time, a support plate is added to the fenestration positioning plate, which can flip the gingival flap of the cut outer bone surface of the maxillary sinus and place it on the support plate during the process of lateral wall fenestration and maxillary sinus floor elevation, effectively isolating the gingival flap and the fenestration tool, and avoiding damage to the gingival flap from traction and high temperature;

[0016] By defining the specific structure of the positioning segment and setting an inclined support surface on the outer side of the positioning segment, the fenestration tool can be guided and supported to enter the positioning window at an inclination, so that the fenestration tool can act stably on the outer bone surface of the maxillary sinus and avoid damaging other parts of the oral cavity.

[0017] By defining the specific structure of the fixation component, multiple arc-shaped fixation parts and multiple tooth indicator holes are added to the implant guide seat to fit with multiple upper teeth. When the implant guide seat is fitted outside the upper teeth, the multiple arc-shaped fixation parts fit with the occlusal surface of the maxillary teeth on at least one side of the missing tooth position and wrap around the crown. Furthermore, the cusps of the maxillary teeth can be inserted into the corresponding tooth indicator holes, thus achieving the positioning of the implant guide seat. Attached Figure Description

[0018] Figure 1 Schematic diagram of the planting guide plate Figure 1 .

[0019] Figure 2 Schematic diagram of the planting guide plate Figure 2 .

[0020] Figure 3 This is a diagram illustrating the use of planting guides when opening windows in the side wall.

[0021] In the diagram: 1. Implant guide seat; 11. Arc-shaped support groove; 12. Guide component; 13. Fixing component; 14. Guide block; 15. Guide hole; 16. Arc-shaped fixing part; 17. Tooth indicator hole; 2. Window positioning plate; 21. Cooling window; 22. Positioning window; 23. Drainage channel; 24. Support plate; 25. Connecting section; 26. Positioning section; 27. Extension platform; 28. Inclined support surface; 3. Maxillary sinus external bone surface; 4. Gingival flap. Detailed Implementation

[0022] The present invention will be further described below through specific embodiments.

[0023] like Figures 1 to 3As shown, this embodiment provides an implant guide plate suitable for maxillary sinus lift surgery, made of resin or polymer material, including an implant guide seat 1 and a fenestration positioning plate 2; wherein, the implant guide seat 1 and the fenestration positioning plate 2 are integrally formed and manufactured one-to-one according to the patient's CBCT data information using 3D printing technology or cutting technology, with a thickness of 1.5mm-3mm.

[0024] The implant guide seat 1, fixedly fitted onto the upper tooth, includes an arc-shaped support groove 11 formed therein to fit the upper tooth, a guide element 12 disposed within the arc-shaped support groove 11, and a fixation element 13 disposed within the arc-shaped support groove 11 to fit the tooth on the side closest to the missing tooth. By providing the arc-shaped support groove 11, the guide element 12, and the fixation element 13, the implant guide seat 1 can be fixed outside the upper tooth for easy insertion and removal, and can also guide the implant placement, improving the practicality of the implant guide plate. Specifically, the guide element 12 includes a guide block 14 extending upward from the bottom surface of the arc-shaped support groove 11 and a guide hole 15 extending downward from the top surface of the guide block 14. The guide hole 15 can be set to multiple according to the number of missing teeth. By setting the guide hole 15, the implant placement position can be accurately guided. Furthermore, the fixation member 13 includes multiple arc-shaped fixation parts 16 arranged sequentially in the arc-shaped support groove 11 along the length direction of the implant guide seat, and multiple tooth indicator holes 17 spaced apart on the multiple arc-shaped fixation parts 16. When the implant guide seat 1 is fitted on the outside of the upper tooth, the multiple arc-shaped fixation parts 16 fit against the occlusal surface of the maxillary tooth at least one side before and after the missing tooth position, and wrap around the crown. The cusp of the maxillary tooth can be embedded in the corresponding tooth indicator hole 17, thus realizing the positioning of the implant guide seat 1.

[0025] A fenestrated positioning plate 2 extends vertically upward and is positioned on top of the implant guide seat 1, fitting against the outer surface of the maxillary sinus. It includes cooling windows 21 and positioning windows 22 spaced apart along the length of the fenestrated positioning plate 2, a drainage channel 23 formed between the cooling windows 21 and the positioning windows 22, and a support plate 24 positioned on top of the fenestrated positioning plate 2 opposite to the positioning windows 22. The support plate 24 can support the gingival flap 4 cut on the lateral surface of the maxillary sinus bone 3. The drainage channel 23 guides coolant from the cooling windows 21 into the positioning windows 22 for alignment. The fenestration tool within the positioning window 22 is cooled, and the positioning window 22 corresponds to the location of the maxillary sinus fenestration. The fenestration positioning plate 2 can be configured in multiple ways depending on the number of bony septa within the patient's maxillary sinus, thus creating multiple small windows on the outer surface of the maxillary sinus. By setting the fenestration positioning plate 2, the location and extent of the maxillary sinus fenestration can be determined. Specifically, the fenestration positioning plate 2 includes a connecting section 25 connected to the implant guide seat 1 and a positioning section 26 extending upward from the top of the connecting section 25. A support plate 24 extends outward from the top of the positioning section 26. The support plate 24 allows the gingival flap 4 of the cut maxillary sinus ectomy bone surface to be flipped open and placed on the support plate 24, effectively isolating the gingival flap 4 from the fenestration tool and preventing damage to the gingival flap 4 from traction and high temperature. Furthermore, the cooling window 21 and the positioning window 22 are spaced apart from the outside to the inside along the length of the positioning segment 26, and the drainage channel 23 is formed on the inner surface of the positioning segment 26 opposite to the maxillary sinus. In use, the cooling pipe can enter the cooling window 21, precisely injecting coolant through the drainage channel 23 into the contact area between the fenestration tool and the maxillary sinus ectomy bone surface 3, achieving cooling... The temperature is controlled to avoid bone burns and improve the safety of the surgery. Furthermore, multiple drainage channels 23 are provided and arranged vertically on the positioning section 26. Furthermore, the positioning section 26 includes an extension platform 27 that protrudes outward on the outer side of the positioning section 26 and an inclined support surface 28 that is inclined from one end of the extension platform 27 toward the positioning window 22. By setting the inclined support surface 28, the fenestration tool that is inclined into the positioning window 22 can be guided and supported, so that the fenestration tool acts stably on the outer bone surface 3 of the maxillary sinus and avoids damage to other parts of the oral cavity.

[0026] The specific working principle of this application is as follows:

[0027] The surgical steps of lateral sinus fenestration and maxillary sinus floor elevation include: Step 1, performing maxillary sinus fenestration by grinding the outer bone surface 3 of the maxillary sinus with a fenestration tool to create a small window; Step 2, elevating the maxillary sinus mucosa by gently lifting the inner maxillary sinus mucosa through the small window; Step 3, filling the elevation space with bone graft material; Step 4, implanting the implant.

[0028] During the maxillary sinus fenestration procedure, the implant guide seat 1 is first placed on the exterior of the matching upper tooth, so that the fenestration positioning plate 2 is aligned with the maxillary sinus fenestration position. Then, the gingival flap 4 of the cut maxillary sinus external bone surface 3 is flipped onto the support plate 24 located above the positioning window 22, ensuring the surgeon has a good field of vision during the operation. Next, the surgeon can tilt the fenestration tool into the positioning window 22 to grind the maxillary sinus external bone surface 3 at the fenestration position. At the same time, the cooling tube can enter the cooling window 21, so that the coolant is injected into the contact area between the fenestration tool and the maxillary sinus external bone surface through the drainage channel 23, effectively reducing the temperature of the contact area. After the fenestration is completed, the remaining coolant in the oral cavity can be drained through the external suction tube. During the implantation process, the guide hole 15 is aligned with the missing tooth position, thereby accurately guiding the implant into the implantation position.

[0029] In summary, by utilizing the above-mentioned technical solution of this utility model, the cooperation between the implant guide seat 1 and the fenestration positioning plate 2 can guide the implant placement and also locate the position and extent of the maxillary sinus fenestration, improving the practicality of the implant guide plate. Furthermore, by defining the specific structure of the fenestration positioning plate 2 and adding a cooling window 21 and a drainage channel 23, coolant can be precisely introduced into the contact area between the fenestration tool located in the positioning window 22 and the outer bone surface 3 of the maxillary sinus, achieving a cooling effect, avoiding bone burns, and improving surgical safety. Additionally, by adding a cooling window 21 and a drainage channel 23 to the fenestration positioning plate 2... The addition of a support plate 24 effectively isolates the gingival flap 4 from the fenestration tool, preventing damage to the gingival flap 4 from traction and high temperature. In addition, by defining the specific structure of the positioning segment 26, an inclined support surface 28 is provided on the outer surface of the positioning segment 26, which can guide and support the fenestration tool that is inclined into the positioning window 22, so that the fenestration tool can act stably on the maxillary sinus external bone surface 3, avoiding damage to other parts of the oral cavity. Furthermore, by defining the specific structure of the fixation member 13, multiple arc-shaped fixation parts 16 that fit with multiple upper teeth and multiple tooth indicator holes 17 are added to the implant guide seat 1, realizing the positioning of the implant guide seat 1.

[0030] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model application and the contents of the specification should still fall within the scope of the present utility model application.

Claims

1. An implant guide plate suitable for maxillary sinus lift surgery, characterized in that: The device includes an implant guide seat and a fenestration positioning plate. The implant guide seat is fixedly fitted onto the upper tooth. The fenestration positioning plate extends vertically upward and is positioned on top of the implant guide seat, fitting against the outer surface of the maxillary sinus. It includes a cooling window and a positioning window spaced apart along the length of the fenestration positioning plate, a drainage channel formed between the cooling window and the positioning window, and a support plate positioned on top of the fenestration positioning plate opposite to the positioning window. The support plate can be used to support the gingival flap cut on the outer bone surface of the maxillary sinus. The drainage channel can guide coolant from the cooling window to the positioning window to cool the fenestration tool located in the positioning window. The positioning window corresponds to the position of the maxillary sinus fenestration.

2. The implant guide plate for maxillary sinus lift surgery according to claim 1, characterized in that: The window positioning plate includes a connecting section connected to the implant guide seat and a positioning section extending upward from the top of the connecting section, and the support plate extends outward from the top of the positioning section.

3. The implant guide plate for maxillary sinus lift surgery according to claim 2, characterized in that: The cooling window and the positioning window are arranged alternately from the outside to the inside along the length of the positioning segment, and the drainage channel is formed on the inner side of the positioning segment opposite to the maxillary sinus.

4. An implant guide for maxillary sinus lift surgery according to claim 3, characterized in that: Multiple drainage channels are provided and are arranged sequentially on the positioning section along the vertical direction.

5. An implant guide for maxillary sinus lift surgery according to claim 2, characterized in that: The positioning section includes an extension platform that protrudes outward from the outer side of the positioning section and an inclined support surface that is inclined from one end of the extension platform toward the positioning window.

6. An implant guide for maxillary sinus lift surgery according to claim 1, characterized in that: The implant guide includes an arc-shaped support groove formed therein to fit the upper tooth, a guide disposed inside the arc-shaped support groove, and a fixation member disposed inside the arc-shaped support groove to fit the tooth on the side closest to the missing tooth.

7. An implant guide for maxillary sinus lift surgery according to claim 6, characterized in that: The guide includes a guide block extending upward from the bottom surface of the arc-shaped support groove and a guide hole extending downward from the top surface of the guide block.

8. An implant guide for maxillary sinus lift surgery according to claim 6, characterized in that: The fastener includes multiple arc-shaped fixing parts arranged sequentially in an arc-shaped support groove along the length of the implant guide seat, and multiple tooth indicator holes spaced apart on the multiple arc-shaped fixing parts.

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