Electronic Gothic bow device for determining dentition defect jaw position relation

Abstract

The utility model relates to the technical field of medical instruments, in particular to an electronic gothic arch device for determining dentition defect jaw position relation, which comprises an upper jaw part and a lower jaw part, the upper jaw part comprises an upper jaw plate and upper jaw supports arranged on two sides of the upper jaw plate, and the lower jaw part comprises a lower jaw plate and lower jaw supports arranged on two sides of the lower jaw plate. The electronic Gothic bow further comprises a tracing needle connected to the lower jaw plate and a piezoelectric film sensor arranged on the lower surface of the upper jaw plate. The upper end of the tracing needle can abut against the piezoelectric film sensor, the tracing needle can generate a dynamic pressure signal on the surface of the sensor along with displacement of the lower jaw plate, and the pressure signal is used for generating lower jaw movement track data in real time. Compared with the prior art, the mandibular movement track is accurately recorded in real time, the central relation position of the upper and lower jawbones can be accurately determined, high-precision and repeatable jaw position relation data is provided for subsequent false tooth repair, and the false tooth repair quality is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an electronic Gothic bow device for determining jaw position relationship of edentulous jaws. Background Art

[0002] Removable partial dentures, a crucial treatment option in prosthodontics, are primarily used to restore masticatory, articulatory, and facial features in patients with edentulous arches. Their removable nature is achieved through a clasp retainer and base structure, effectively distributing occlusal forces to protect the remaining tooth tissue while allowing for flexible adjustment of the prosthesis to accommodate dynamic tissue changes. The Gothic arch tracing device is a key adjunct to complete denture restorations. By recording the trajectory of mouth opening and closing, protrusion, and lateral movement, it accurately locates the centric relation position, the most stable position of the mandible relative to the maxilla, directly impacting the long-term stability and occlusal balance of the denture. In bilateral edentulous arches, precise measurement of the vertical distance between the maxilla and mandible, as well as the relationship between the centric relation position and the resting jaw position, is crucial, directly impacting prosthesis design and occlusal outcome. Currently, determination of the maxillary and mandibular positional relationship relies primarily on a traditional approach combining patient cooperation and physician judgment. During the procedure, wax ridges are used to record the occlusal relationship and multiple calibrations are required, necessitating repeated manipulation of the mandibular articulation device to complete the treatment process. The existing technology has some shortcomings. First, the chewing pattern of most patients changes after losing their teeth. Simply recording the occlusal relationship may cause the patient to maintain an incorrect state, affecting long-term functional stability. Second, the adjustment of the occlusion requires high precision. Repeated use of wax ridges and upper jaws will affect the occlusal accuracy and easily cause errors in the jaw relationship.

[0003] While the digital Gothic arch device proposed in patent CN114224547A achieves personalized design, it cannot dynamically monitor mandibular motion trajectory, has limited accuracy, and cannot meet the high-precision requirements in complex oral environments. While the Gothic arch recording device in patent CN115137508A improves assembly stability and ease of installation and disassembly, it relies on silicone rubber material for mandibular motion trajectory recording, which is prone to deformation and leads to measurement errors, and cannot achieve real-time data transmission and analysis.

[0004] In summary, although the existing technology has improved the shortcomings of traditional methods to a certain extent, it still has defects in measurement accuracy and real-time dynamic monitoring. These problems are particularly prominent in complex oral restoration scenarios and urgently need further improvement. Utility Model Content

[0005] The purpose of the present utility model is to provide an electronic Gothic bow device for determining the jaw relationship of edentulous patients in order to overcome the defects of the above-mentioned prior art. Through the cooperation of the tracing needle of the electronic Gothic bow device and the piezoelectric film sensor, the real-time and accurate recording of the mandibular movement trajectory is achieved, and the central relationship position of the upper and lower jaws can be accurately determined, providing high-precision and repeatable jaw relationship data for subsequent denture restoration, thereby significantly improving the quality of denture restoration.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The utility model provides an electronic Gothic bow device for determining the jaw position relationship of edentulous patients, comprising an upper jaw component and a lower jaw component, wherein the upper jaw component comprises an upper jaw plate and upper jaw supports arranged on both sides of the upper jaw plate, and the lower jaw component comprises a lower jaw plate and lower jaw supports arranged on both sides of the lower jaw plate. The electronic Gothic bow further comprises a tracing needle connected to the lower jaw plate and a piezoelectric film sensor arranged on the lower surface of the upper jaw plate.

[0008] The upper end of the tracing needle can abut against the piezoelectric film sensor, and the tracing needle can generate a dynamic pressure signal on the sensor surface as the mandibular plate moves. The pressure signal is used to generate mandibular movement trajectory data in real time.

[0009] Furthermore, a through hole is provided in the middle of the mandibular plate, and an internal thread is provided on the inner wall of the through hole.

[0010] Furthermore, the tracing needle includes a cylindrical tracing needle body and a needle tip provided at the tip of the tracing needle body.

[0011] Furthermore, the outer wall surface of the tracing needle body is provided with a thread, the tracing needle body passes through the through hole and is threadedly connected to the through hole, and the position of the needle tip can be adjusted by twisting the tracing needle body.

[0012] Furthermore, the needle tip is made of rubber material.

[0013] Furthermore, a microprocessor is provided inside the maxillary plate, and the microprocessor is communicatively connected with the piezoelectric film sensor.

[0014] Furthermore, a wireless signal transceiver is provided inside the maxillary plate, the wireless signal transceiver is communicatively connected to the microprocessor, and the wireless signal transceiver is wirelessly connected to an external computer terminal.

[0015] Furthermore, the microprocessor is one of a single-chip microcomputer, an ARM architecture, and a RISC-V architecture processor.

[0016] Furthermore, the upper surface of the maxillary support is a curved structure that matches the maxilla.

[0017] Furthermore, the lower surface of the mandibular support is a curved structure that matches the mandible.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention realizes the real-time and accurate recording of the mandibular movement trajectory through the cooperation of the tracing needle of the electronic Gothic bow device and the piezoelectric film sensor, can accurately determine the central relationship position of the upper and lower jaws, and provides high-precision and repeatable jaw relationship data for subsequent denture restoration, which significantly improves the quality of denture restoration. Specifically, the upper end of the tracing needle abuts against the piezoelectric film sensor, and generates a dynamic pressure signal with the displacement of the mandibular plate, which is used to generate mandibular movement trajectory data in real time. Compared with the traditional method of repeated adjustment of the wax ridge, the electronic and visual recording method avoids the accumulation of errors caused by repeated use of the wax ridge, reduces the error probability of the jaw relationship, and improves the measurement accuracy and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the electronic Gothic bow device for determining the jaw position relationship of edentulous jaws in the present invention;

[0021] Figure 2 This is a schematic structural diagram of the upper jaw component of the present invention.

[0022] In the figure: 1. maxillary component, 2. mandibular component, 3. tracing needle, 4. microprocessor, 5. wireless signal transceiver, 6. piezoelectric film sensor, 11. maxillary plate, 12. maxillary support, 21. mandibular plate, 22. mandibular support. DETAILED DESCRIPTION

[0023] The following is a detailed description of the present invention with reference to the accompanying drawings and specific embodiments. Any features such as component models, material names, connection structures, circuit structures, control methods, algorithms, etc. not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0024] Example 1

[0025] The electronic Gothic bow device used in this embodiment to determine the jaw position relationship of edentulous patients is shown in FIG. Figure 1 and Figure 2, comprising an upper jaw component 1 and a lower jaw component 2, wherein the upper jaw component 1 comprises an upper jaw plate 11 and upper jaw supports 12 disposed on both sides of the upper jaw plate 11, and the lower jaw component 2 comprises a lower jaw plate 21 and lower jaw supports 22 disposed on both sides of the lower jaw plate 21. The electronic Gothic bow further comprises a tracing needle 3 connected to the lower jaw plate 21 and a piezoelectric film sensor 6 disposed on the lower surface of the upper jaw plate 11. The upper end of the tracing needle 3 can abut against the piezoelectric film sensor 6, and the tracing needle 3 can generate a dynamic pressure signal on the sensor surface as the lower jaw plate 21 is displaced. The pressure signal is used to generate real-time mandibular motion trajectory data.

[0026] This embodiment utilizes a tracing needle 3 and a piezoelectric film sensor 6. The upper end of the tracing needle 3 abuts the piezoelectric film sensor 6, generating a dynamic pressure signal on the sensor surface as the mandibular plate 21 moves. This pressure signal is used to generate real-time mandibular motion trajectory data. Compared to traditional methods that rely on physician experience and patient cooperation, this method can more accurately determine the positional relationship between the upper and lower jaws, providing a more reliable data foundation for subsequent denture fabrication, ensuring stable occlusal function, and improving the quality and effectiveness of denture restorations.

[0027] This embodiment uses electronic equipment to record the trajectory. Compared with the traditional method of repeated adjustment of the wax ridge, the visual recording accuracy of the electronic equipment is higher, and the data can be displayed and saved in real time, which is convenient for doctors to analyze and judge, avoiding the accumulation of errors caused by repeated use of the wax ridge, and reducing the probability of errors in the jaw relationship, thereby improving the reliability and success rate of the entire denture restoration process.

[0028] During specific implementation, a through hole is provided in the middle of the mandibular plate 21, and an internal thread is provided on the inner wall of the through hole. The tracing needle 3 includes a cylindrical tracing needle body and a needle tip provided at the tip of the tracing needle body. The outer wall of the tracing needle body is provided with a thread, and the tracing needle body passes through the through hole and is threadedly connected to the through hole. By twisting the tracing needle body, the position of the needle tip can be adjusted. The design of providing a through hole on the mandibular plate 21 and being threadedly connected to the tracing needle 3 allows the position of the tracing needle 3 to be easily adjusted, and the length and position of the tracing needle 3 can be flexibly adjusted according to the specific conditions of different patients to adapt to the oral morphology and measurement requirements of different patients.

[0029] During specific implementation, a microprocessor 4 and a wireless signal transceiver 5 are provided inside the maxillary plate 11. The microprocessor 4 is communicatively connected to the piezoelectric film sensor 6, and can process and analyze the pressure signal collected by the sensor in real time, and transmit the data to an external computer terminal through the wireless signal transceiver 5, so as to facilitate the doctor to view and analyze the data remotely, thereby improving work efficiency, and avoiding the inconvenience that may be caused by traditional wired connection methods and interference problems during data transmission.

[0030] For specific implementation, see Figure 2 The microprocessor 4 is provided inside the maxillary plate 11. Figure 2 Dashed lines indicate the microprocessor 4 and wireless signal transceiver 5, and the interconnecting lines, located within the maxillary plate 11. The microprocessor 4 is in communication with the piezoelectric film sensor 6. A wireless signal transceiver 5 is also located within the maxillary plate 11 and is in communication with the microprocessor 4. The wireless signal transceiver 5 is in wireless communication with an external computer terminal. The microprocessor 4 utilizes a single-chip microcomputer, an ARM architecture, or a RISC-V architecture. These processors offer high performance and low power consumption, enabling rapid pressure signal processing and analysis.

[0031] During specific implementation, the needle tip is made of rubber material.

[0032] During specific implementation, the mandibular movement trajectory data recorded by this embodiment can be visualized through a connected electronic display screen or storage device, allowing doctors to intuitively observe the trajectory of mandibular movement and related data changes, facilitating detailed analysis and diagnosis of the patient's jaw position relationship, and facilitating the development of a more personalized and accurate denture restoration plan. It also facilitates long-term storage and comparative research of data, providing stronger support for clinical practice and scientific research in the field of oral restoration. In traditional methods, doctors need to determine the jaw position relationship through observation of the wax ridge and empirical judgment, while the utility model visualizes the data through electronic equipment, allowing doctors to more intuitively see the trajectory of mandibular movement and related parameters, such as movement amplitude, speed, etc., thereby more accurately assessing the patient's oral function status.

[0033] In practice, the upper surface of the maxillary support 12 is a curved structure that matches the upper jaw. The lower surface of the mandibular support 22 is a curved structure that matches the lower jaw. This curved design allows for a better fit to the patient's oral tissue, increasing the contact area between the device and the oral cavity, improving wearing comfort and stability, and reducing device shifting and shaking during use, thereby further enhancing the reliability of measurement data.

[0034] This embodiment uses electronic equipment to record the trajectory. Compared with the traditional method of repeated adjustment of the wax ridge, the visual recording accuracy of the electronic equipment is higher, and the data can be displayed and saved in real time, which is convenient for doctors to analyze and judge, avoiding the accumulation of errors caused by repeated use of the wax ridge, and reducing the probability of errors in the jaw relationship, thereby improving the reliability and success rate of the entire denture restoration process.

[0035] During repeated use of the traditional wax ridge method, the shape of the wax ridge is prone to slight changes, resulting in a decrease in occlusal accuracy. However, the present invention can accurately record the mandibular movement trajectory through the cooperation of the piezoelectric film sensor 6 and the tracing needle 3, and the data of each measurement can be kept highly consistent, effectively improving the measurement accuracy. To use this electronic Gothic bow device, you only need to complete the preparation of the upper and lower jaw models, design the upper and lower jaw supports on the models to fix the upper and lower jaw plates 11 and the tracing needle 3, and ensure that they match the patient's oral structure, and then guide the patient to perform natural mandibular protrusion and lateral movement. The piezoelectric film sensor 6 can synchronously record the movement trajectory. When the trajectory presents a stable Gothic bow shape, it can prompt the mandible to reach the central relationship position. At this time, the position relationship between the upper and lower jaws is unique and repeatable, and the operation process is relatively simple and convenient.

[0036] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. An electronic Gothic bow device for determining jaw position relationship in edentulous patients, comprising an upper jaw component (1) and a lower jaw component (2), wherein the upper jaw component (1) comprises an upper jaw plate (11) and upper jaw supports (12) provided on both sides of the upper jaw plate (11), and the lower jaw component (2) comprises a lower jaw plate (21) and lower jaw supports (22) provided on both sides of the lower jaw plate (21), characterized in that: The electronic Gothic bow further comprises a tracing needle (3) connected to the mandibular plate (21) and a piezoelectric film sensor (6) provided on the lower surface of the maxillary plate (11); The upper end of the tracing needle (3) can abut against the piezoelectric film sensor (6), and the tracing needle (3) can generate a dynamic pressure signal on the sensor surface as the mandibular plate (21) is displaced. The pressure signal is used to generate mandibular movement trajectory data in real time.

2. The electronic Gothic bow device for determining jaw position of edentulous jaws according to claim 1, characterized in that: A through hole is provided in the middle of the mandibular plate (21), and an internal thread is provided on the inner wall of the through hole.

3. The electronic Gothic bow device for determining jaw position of edentulous jaws according to claim 2, characterized in that: The tracing needle (3) comprises a cylindrical tracing needle body and a needle tip arranged at the tip of the tracing needle body.

4. The electronic Gothic bow device for determining jaw position relationship of edentulous jaws according to claim 3, characterized in that: The outer wall surface of the tracing needle body is provided with a thread, the tracing needle body passes through the through hole and is threadedly connected to the through hole, and the position of the needle tip can be adjusted by twisting the tracing needle body.

5. The electronic Gothic bow device for determining jaw position relationship of edentulous jaws according to claim 3, characterized in that: The needle tip is made of rubber material.

6. The electronic Gothic bow device for determining jaw position relationship of edentulous jaws according to claim 1, characterized in that: A microprocessor (4) is provided inside the maxillary plate (11), and the microprocessor (4) is communicatively connected to the piezoelectric film sensor (6).

7. The electronic Gothic bow device for determining jaw position relationship of edentulous jaws according to claim 6, characterized in that: A wireless signal transceiver (5) is further provided inside the maxillary plate (11), wherein the wireless signal transceiver (5) is communicatively connected to the microprocessor (4), and the wireless signal transceiver (5) is wirelessly connected to an external computer terminal.

8. The electronic Gothic bow device for determining jaw position relationship of edentulous jaws according to claim 6, characterized in that: The microprocessor (4) is one of a single chip microcomputer, an ARM architecture processor, and a RISC-V architecture processor.

9. The electronic Gothic bow device for determining jaw position relationship of edentulous jaws according to claim 1, characterized in that: The upper surface of the maxillary support (12) is a curved surface structure that matches the maxilla.

10. The electronic Gothic bow device for determining jaw position relationship of edentulous jaws according to claim 1, characterized in that: The lower surface of the mandibular support (22) is a curved surface structure that matches the mandibular support.

Images