Special Gott bow positioning device for intraoral scanning of edentulous jaw
Through improved structural design of the mounting, fixing, and auxiliary parts, the gap cleaning and safety issues that existed during the use of the positioning device have been resolved, achieving efficient and stable intraoral scanning positioning, which is suitable for digital complete denture restoration for edentulous patients.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 何蔚
- Filing Date
- 2026-04-16
- Publication Date
- 2026-05-12
AI Technical Summary
Existing positioning devices have gaps between their components during use, making them difficult to clean and disinfect, resulting in poor safety during reuse and failing to meet the high efficiency and hygiene requirements of digital oral scanning scenarios.
The device employs a structural design that includes an installation section, a fixing section, an auxiliary section, and a limiting component to improve assembly efficiency and positioning accuracy, ensuring stability and reliability during intraoral movement. The device position can be calibrated using a laser pointer, reducing the difficulty of disassembly and assembly and enhancing its reusability for disinfection.
It significantly improves the assembly efficiency and positioning accuracy of the Gothic bow positioning device, ensures the stability and safety of the device during intraoral scanning, facilitates rapid replacement and sterilization for reuse, and reduces operational errors.
Smart Images

Figure CN122005138A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of positioning device technology, specifically to a Gothic arch positioning device for intraoral scanning of edentulous jaws. Background Technology
[0002] The Gothic arch for edentulous intraoral scanning is a jaw position recording tool specifically designed for edentulous patients undergoing digital complete denture restoration. Optimized from the traditional Gothic arch, it can be used directly with an intraoral scanner. It mainly consists of a maxillary tracing plate, a mandibular tracing needle, a positioning base, and auxiliary fixation structures. It is used to accurately determine the patient's centric relation. After wearing the device, when the patient makes forward or lateral movements, the device forms a Gothic trajectory on the plate, with the apex indicating the ideal occlusion. Compared to traditional metal Gothic arches, it uses matte, non-reflective digital materials to avoid interfering with intraoral scanning imaging. Its structure is also simpler, conforms better to the alveolar ridge of the edentulous jaw, and is more stable and less prone to displacement.
[0003] However, existing positioning devices have gaps between their components during use, making it difficult to clean impurities from these gaps during disinfection. This results in poor safety for reuse and makes it difficult to meet the needs for efficient and hygienic use in digital oral scanning scenarios. Summary of the Invention
[0004] This invention significantly improves the assembly efficiency, positioning accuracy, and operational stability of the Gothic bow positioning device by incorporating an installation section, while reducing the difficulty of disassembly and assembly, facilitating rapid clinical replacement and disinfection reuse.
[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:
[0006] This invention relates to a Gothic bow positioning device for intraoral scanning of edentulous jaws, comprising a mounting plate, and further comprising: a mounting part mounted on the mounting plate; a fixing part disposed on the mounting plate; an auxiliary part mounted on the mounting plate; the mounting part comprising an assembly assembly mounted on the mounting plate; and a limiting assembly disposed on the assembly assembly; the assembly assembly comprising two connecting plates disposed on the mounting plate, each connecting plate having a wrapping plate fixedly connected to its end, a marking pin disposed between the two wrapping plates, and a marking plate disposed below the marking pin, the two connecting plates and the two wrapping plates being mirror images of each other.
[0007] Furthermore, the fixing part includes a clamping assembly mounted on the mounting plate; and a locking assembly disposed on the mounting plate.
[0008] Furthermore, the auxiliary part includes a fixing plate disposed below the mounting plate, a fixing ring fixedly connected to the bottom of the fixing plate, a positioning element disposed on the fixing ring, the fixing plate being fixed to the mounting plate by the fixing part, and the positioning element including a laser pointer fixedly connected to the fixing ring, the laser pointer emitting a cross-shaped laser.
[0009] Furthermore, the limiting component includes a limiting block 1 fixedly connected to the wrapping plate, a limiting groove 1 formed on the aiming pin and the aiming plate, two limiting plates 2 fixedly connected to the wrapping plate, and a limiting member provided on the wrapping plate. The aiming pin and the aiming plate are located between the two limiting plates 2, and the limiting member includes a limiting groove 2 formed on the wrapping plate. The limiting groove 2 has the same size as the aiming pin and the aiming plate when they are together.
[0010] Furthermore, the clamping assembly includes a placement slot formed on the mounting plate, a pressure plate is provided above the mounting plate, a connecting rod is fixedly connected to the right side of the pressure plate, a guide is provided on the pressure plate, the mounting plate and the pressure plate are fixed by bolts, and the guide includes a rounded corner provided on the pressure plate, the rounded corner is used to facilitate the connecting plate to be better inserted into the placement slot.
[0011] Furthermore, the locking assembly includes an upper push block fixedly connected to the right side of the connecting rod, and a lower push block fixedly connected to the right side of the mounting plate. The upper and lower push blocks are provided with adapter slots, and a push ball is rotatably connected in the adapter slot. A handle is fixedly connected to the front side of the push ball, and the push ball is adapted to the adapter slot.
[0012] The present invention has the following beneficial effects:
[0013] 1. This invention, by setting up an installation part, first pre-merges the aiming pin and aiming plate, and determines that the merging is in place by passing through the limiting groove one; then, the limiting block one of the wrapping plate is inserted into the limiting groove one, and the wrapping plate and connecting plate are rotated around the limiting groove one as the rotation axis, so that the aiming pin and aiming plate are inserted into the limiting groove two to achieve limiting and fixing; finally, the other wrapping plate is installed to complete the overall assembly, which significantly improves the assembly efficiency, positioning accuracy and usage stability of the Gothic bow positioning device, while reducing the difficulty of disassembly and assembly, and facilitating rapid clinical replacement and disinfection reuse.
[0014] 2. This invention, by setting a fixing part, allows the connecting plate to be inserted along the placement groove after assembly. The rounded corner guide opens the pressure plate to achieve initial insertion, and the pressure plate pre-fixes the connecting plate through elastic extrusion. Then, by squeezing the handle and rotating the pushing ball, the ball moves upward under the action of the convex part in the adapter groove, driving the upper pushing block to move upward, thereby driving the connecting rod and the pressure plate to form a lever structure. This allows the pressure plate to apply a locking force to the connecting plate, achieving a final and secure clamping installation. This effectively avoids loosening, displacement, or falling off during use, ensuring that the Gothic bow positioning device remains stable and reliable during intraoral movement and scanning. At the same time, the operation is simple and quick, allowing for rapid clamping and disassembly, improving clinical efficiency and operational safety.
[0015] 3. This invention, through the inclusion of an auxiliary unit, first activates the laser pointer, causing it to emit a cross-shaped laser beam. Then, the assembled packaging plate, aiming pin, and aiming plate are placed into the patient's oral cavity and initially positioned. Using the patient's nasal tip as a reference calibration point, the center of the cross-shaped laser beam is precisely aligned with the patient's nasal tip. By observing the deviation of the cross-shaped laser beam in real time, the correct placement of the device within the patient's oral cavity is determined. If the laser center deviates from the nasal tip, the device position is adjusted until the laser center is precisely aligned with the nasal tip, completing the device's alignment calibration. This effectively avoids subjective errors caused by visual observation, significantly improving the alignment accuracy of the device within the patient's oral cavity. It ensures that the aiming pin and aiming plate are in the preset, precise positioning position, providing a reliable positional basis for subsequent jaw position recording and intraoral scanning.
[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 This is a partial cross-sectional view of the mounting section of the present invention;
[0020] Figure 3 This is an exploded structural diagram of the mounting part of the present invention;
[0021] Figure 4 This is a partial cross-sectional view of the clamping assembly of the present invention;
[0022] Figure 5 This is a partial cross-sectional view of the rounded corners of the present invention.
[0023] Figure 6 This is a partial cross-sectional view of the locking component of the present invention;
[0024] Figure 7 This is a partial cross-sectional view of the auxiliary part of the present invention.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] In the diagram: 111, Mounting plate; 2, Mounting part; 21, Assembly component; 211, Connecting plate; 212, Covering plate; 213, Marking pin; 214, Marking plate; 22, Limiting component; 221, Limiting block one; 222, Limiting groove one; 223, Limiting plate two; 224, Limiting groove two; 3, Fixing part; 31, Clamping component; 311, Placement groove; 312, Pressure plate; 313, Connecting rod; 314, Rounded corner; 32, Locking component; 321, Upper pushing block; 322, Lower pushing block; 323, Adaptor groove; 324, Push ball; 325, Handle; 4, Auxiliary part; 411, Fixing plate; 412, Fixing ring; 413, Laser pointer. Detailed Implementation
[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.
[0028] Please see Figures 1-7 As shown, the present invention is a Gothic arch positioning device for intraoral scanning of edentulous jaws, including a mounting plate 111, and further including: a mounting part 2, which is mounted on the mounting plate 111; a fixing part 3, which is disposed on the mounting plate 111; and an auxiliary part 4, which is mounted on the mounting plate 111.
[0029] The mounting section 2 includes an assembly component 21 mounted on a mounting plate 111; and a limiting component 22 disposed on the assembly component 21. The assembly component 21 includes two connecting plates 211 disposed on the mounting plate 111, each end of which is fixedly connected to a covering plate 212. A aiming pin 213 is disposed between the two covering plates 212, and a aiming plate 214 is disposed below the aiming pin 213. The two connecting plates 211 and the two covering plates 212 are mirror images of each other. The limiting component 22 includes a limiting block 221 fixedly connected to the covering plate 212. Limiting grooves 222 are provided on the nail 213 and the aiming plate 214. Two limiting plates 223 are fixedly connected to the wrapping plate 212. A limiting component is provided on the wrapping plate 212. The aiming nail 213 and the aiming plate 214 are located between the two limiting plates 223. The limiting component includes a limiting groove 224 provided on the wrapping plate 212. The limiting groove 224 is the same size as the aiming nail 213 and the aiming plate 214 when they are together. By setting the mounting part 2, the assembly efficiency, positioning accuracy and usage stability of the Gothic bow positioning device are significantly improved, while the difficulty of disassembly and assembly is reduced, making it convenient for rapid clinical replacement and disinfection reuse.
[0030] The fixing part 3 includes a clamping assembly 31, which is mounted on the mounting plate 111; and a locking assembly 32, which is also mounted on the mounting plate 111. The clamping assembly 31 includes a placement groove 311 formed on the mounting plate 111. A pressure plate 312 is provided above the mounting plate 111. A connecting rod 313 is fixedly connected to the right side of the pressure plate 312. A guide is provided on the pressure plate 312. The mounting plate 111 and the pressure plate 312 are fixedly fastened by bolts. The guide includes a rounded corner 314 provided on the pressure plate 312. The rounded corner 314 is used to facilitate better insertion of the connecting plate 211 into the placement groove 311. The locking assembly 32 includes a fixedly connected... The upper push block 321 on the right side of the connecting rod 313 and the lower push block 322 are fixedly connected to the right side of the mounting plate 111. The upper push block 321 and the lower push block 322 are provided with an adapter groove 323. A push ball 324 is rotatably connected in the adapter groove 323. A handle 325 is fixedly connected to the front side of the push ball 324. The push ball 324 is adapted to the adapter groove 323. By setting the fixing part 3, it is effectively prevented from loosening, shifting or falling off during use, ensuring that the Gothic bow positioning device remains stable and reliable during intraoral movement and scanning. At the same time, the operation is simple and quick, and it can be quickly clamped and disassembled, improving the efficiency of clinical use and the safety of operation.
[0031] The auxiliary part 4 includes a fixing plate 411 disposed below the mounting plate 111. A fixing ring 412 is fixedly connected to the bottom of the fixing plate 411. A positioning element is disposed on the fixing ring 412. The fixing plate 411 is fixed to the mounting plate 111 by the fixing part 3. The positioning element includes a laser pen 413 fixedly connected to the fixing ring 412. The laser pen 413 emits a cross-shaped laser. By setting the auxiliary part 4, the alignment accuracy of the device in the patient's oral cavity is greatly improved, ensuring that the aiming pin 213 and the aiming plate 214 are in the preset precise positioning position, providing a reliable positional basis for subsequent jaw position recording and intraoral scanning.
[0032] In use, the connecting plate 211, the wrapping plate 212, the aiming pin 213, and the aiming plate 214 are assembled. During assembly, the aiming pin 213 and the aiming plate 214 are brought together. The completion of the assembly is determined by whether they can be brought together through the first limiting groove 222. After the assembly is completed, the first limiting block 221 on the wrapping plate 212 is locked in the first limiting groove 222. Then, the wrapping plate 212 and the connecting plate 211 are rotated by the first limiting groove 222. The aiming pin 213 and the aiming plate 214 will be locked in the second limiting groove 224. At this time, the second limiting groove 224 will limit the aiming pin 213 and the aiming plate 214. Then, the wrapping plate 212 on the other side is also installed. In this way, the effect of assembling the wrapping plate 212, the aiming pin 213, and the aiming plate 214 can be achieved.
[0033] After assembly, insert the connecting plate 211 into the placement slot 311. When inserted, the connecting plate 211 will contact the rounded corner 314. At this time, the connecting plate 211 can open the pressure plate 312 through the rounded corner 314. After the pressure plate 312 is opened, the connecting plate 211 can be inserted into the placement slot 311. After insertion, the pressure plate 312 will maintain a certain squeezing force. This squeezing force can fix the two connecting plates 211 in the placement slot 311. Then, pinch the handle 325 and rotate the push ball 324. When the push ball 324 rotates to the right, it will push the push ball 324 upward through the protrusion in the adapter slot 323. After the push ball 324 is pushed upward, the upper push block 321 will also be pushed upward. After being pushed, the upper push block 321 will form a lever principle with the connecting rod 313 and the pressure plate 312. The pressure plate 312 will completely clamp the connecting plate 211, thereby achieving the effect of installing the connecting plate 211.
[0034] After installation, turn on the laser pointer 413, then insert the wrapping plate 212, the aiming pin 213, and the aiming plate 214 into the patient's mouth. The laser pointer 413 will emit a cross-shaped laser after being turned on. At this time, align the center of the cross laser with the tip of the patient's nose. You can then observe whether the device is aligned by observing the cross laser.
[0035] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. A Gothic arch positioning device for intraoral scanning of edentulous jaws, comprising a mounting plate (111), characterized in that, Also includes: Mounting part (2), which is mounted on mounting plate (111); Fixing part (3), the fixing part (3) is provided on the mounting plate (111); Auxiliary part (4), which is mounted on mounting plate (111); The mounting section (2) includes an assembly component (21) mounted on a mounting plate (111); and A limiting component (22) is disposed on the assembly component (21); The assembly component (21) includes two connecting plates (211) disposed on the mounting plate (111), and a wrapping plate (212) is fixedly connected to the ends of the two connecting plates (211). A aiming pin (213) is disposed between the two wrapping plates (212), and an aiming plate (214) is disposed below the aiming pin (213). The two connecting plates (211) and the two wrapping plates (212) are all mirror images of each other.
2. The Gothic arch positioning device for intraoral scanning of edentulous jaws according to claim 1, characterized in that, The fixing part (3) includes a clamping assembly (31) mounted on the mounting plate (111); and Locking component (32) is disposed on mounting plate (111).
3. The Gothic arch positioning device for intraoral scanning of edentulous jaws according to claim 1, characterized in that, The auxiliary part (4) includes a fixing plate (411) disposed below the mounting plate (111), and a fixing ring (412) is fixedly connected to the bottom of the fixing plate (411), and a positioning element is provided on the fixing ring (412); The fixing plate (411) is fixed to the mounting plate (111) by the fixing part (3).
4. The Gothic arch positioning device for intraoral scanning of edentulous jaws according to claim 1, characterized in that, The limiting component (22) includes a limiting block (221) fixedly connected to the wrapping plate (212), a limiting groove (222) is provided on the aiming pin (213) and the aiming plate (214), two limiting plates (223) are fixedly connected to the wrapping plate (212), and a limiting component is provided on the wrapping plate (212); Among them, the aiming pin (213) and the aiming plate (214) are located between the two limiting plates (223).
5. A Gothic arch positioning device for intraoral scanning of edentulous jaws according to claim 2, characterized in that, The clamping assembly (31) includes a placement slot (311) opened on the mounting plate (111), a pressure plate (312) is provided above the mounting plate (111), a connecting rod (313) is fixedly connected to the right side of the pressure plate (312), and a guide is provided on the pressure plate (312); The mounting plate (111) and the pressure plate (312) are fixed by bolts.
6. The Gothic arch positioning device for intraoral scanning of edentulous jaws according to claim 2, characterized in that, The locking assembly (32) includes an upper push block (321) fixedly connected to the right side of the connecting rod (313), and a lower push block (322) fixedly connected to the right side of the mounting plate (111). The upper push block (321) and the lower push block (322) are provided with adapter grooves (323). A push ball (324) is rotatably connected in the adapter groove (323). A handle (325) is fixedly connected to the front side of the push ball (324). Among them, the push ball (324) is adapted to the adapter slot (323).
7. The Gothic arch positioning device for intraoral scanning of edentulous jaws according to claim 3, characterized in that, The positioning element includes a laser pointer (413) fixedly connected to a fixing ring (412). Among them, the laser pointer (413) emits a cross-shaped laser.
8. A Gothic arch positioning device for intraoral scanning of edentulous jaws according to claim 4, characterized in that, The limiting element includes a second limiting groove (224) formed on the wrapping plate (212); Among them, the size of the limiting groove 2 (224) is the same as that of the aiming pin (213) and the aiming plate (214).
9. A Gothic arch positioning device for intraoral scanning of edentulous jaws according to claim 5, characterized in that, The guide includes a rounded corner (314) provided on the pressure plate (312); The rounded corner (314) is used to facilitate the better insertion of the connecting plate (211) into the placement slot (311).