Full-automatic self-adaptive oral cavity scanning fixing system

Abstract

The invention relates to a full-automatic self-adaptive oral cavity scanning fixing system, which belongs to the technical field of medical instruments and comprises an intelligent deformation fixing bracket, an electromagnetic driving scanning module, a jaw distance dynamic adjusting mechanism and an intelligent control center. Through the synergistic effect of a self-adaptive deformation adjusting mechanism and negative pressure adsorption of the memory metal bracket, rapid matching and stable fixation of the dental arch form of a patient are realized; by combining precise track positioning of the electromagnetic driving scanning head and dynamic pressure compensation of the inflatable supporting structure, interference of soft tissue collapse on a scanning view field is effectively inhibited, and complete imaging of tooth surfaces and gingival lines is ensured. The intelligent control center provides a one-button operation interface, supports scanning parameter adaptive matching and three-dimensional model real-time rendering, significantly improves the scanning efficiency and precision of complex oral cavity cases, reduces the operation load of medical staff, and provides a high-precision data basis for digital repair and orthodontic diagnosis and treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a fully automatic adaptive oral scanning fixation system. Background Art

[0002] Oral three-dimensional scanning technology is an important foundation for digital dental diagnosis and treatment. Its core function is to accurately obtain the three-dimensional morphological data of teeth, gums and surrounding tissues, providing a key basis for subsequent prosthesis design, orthodontic treatment plan formulation, etc. Traditional scanning methods mainly rely on medical staff to operate the equipment by hand, facing significant challenges in practical applications: due to the narrow internal space of the oral cavity and the complex distribution of soft tissues, during operation, it is necessary to continuously adjust the instrument angle and maintain the patient's mouth-opening state. This process not only requires extremely high experience from the operator, but also easily leads to scanning interruption or data distortion due to slight patient movement or soft tissue interference. For some special patient groups or complex cases, it is often necessary to repeat the scan multiple times to obtain complete data, greatly affecting the diagnosis and treatment efficiency.

[0003] There are several defects in current mainstream oral scanning devices that urgently need to be improved. First, existing devices lack an effective overall fixation structure. Physiological micro-movements in the patient's oral cavity during scanning (such as swallowing, tongue movement) will directly cause blurred imaging, while traditional external fixation devices can only limit large-scale head movement and cannot suppress fine displacements inside the oral cavity. Second, the soft tissue isolation technology is not yet mature. Conventional retractors can only achieve static separation and are difficult to dynamically adapt to the differences in oral opening degrees and gum morphologies of different patients, resulting in the scanning field of view being frequently blocked by lip or cheek tissues. In addition, the problem of insufficient instrument adaptability is particularly prominent. Most fixation brackets adopt a preset rigid structure design and cannot flexibly match different dental arch curvatures and tooth arrangement characteristics. In clinical practice, multiple sets of brackets with different specifications often need to be equipped, which not only increases the equipment cost but also affects the disinfection turnover efficiency.

[0004] In response to the above problems, the long-term technical bottleneck in the industry lies in how to build a comprehensive system that can simultaneously achieve adaptive fixation, dynamic environment control, and intelligent path planning. The ideal solution needs to break through the contradictions between mechanical fixation and biological tissue deformation, the conflicts between static isolation and dynamic adjustment, and the balance problems between general design and individual adaptation on the premise of ensuring patient comfort. Most improvements in existing technologies are limited to local optimizations, such as compensating for motion errors through algorithms or increasing the size of retractors, but no systematic innovation has been formed, which has become a key obstacle restricting the precise and efficient development of oral diagnosis and treatment. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide a fully automatic adaptive oral scanning fixation system. By setting a dental brace type fixation bracket with the cooperation of shape memory metal deformation adjustment and negative pressure adsorption, an electromagnetic drive precision scanning component, a jaw spacing dynamic linkage mechanism, and an environmental control system integrating inflatable support and optical feedback, combined with a multi-modal data real-time fusion algorithm and intelligent path planning, it realizes the adaptive fixation of full-mouth scanning, dynamic isolation of soft tissues, and high-precision three-dimensional modeling, thereby solving the problems of strong dependence on manual operation, serious soft tissue interference, blurred imaging caused by patient micro-movement, and insufficient instrument adaptability in existing oral scanning technologies, as well as the core defects of cumbersome operation of traditional equipment, poor imaging integrity, and low patient adaptability, and significantly improving the accuracy and efficiency of digital oral diagnosis and treatment.

[0006] The present invention is realized through the following technical solutions:

[0007] A fully automatic adaptive oral scanning fixation system, comprising a dental brace type fixation bracket, an electromagnetic sliding scanning component, an upper and lower jaw linkage adjustment mechanism, and an external central controller;

[0008] The dental brace type fixation bracket includes a shape memory metal matrix, a traction deformation mechanism, a negative pressure adsorption unit, and an inflatable support structure. The shape memory metal matrix is in a U-shaped dental brace structure. An electromagnetic sliding track is provided inside the shape memory metal matrix. The traction deformation mechanism is distributed along the inner arc surface of the U-shaped dental brace structure and is connected to the shape memory metal matrix. The negative pressure adsorption unit is arranged inside the bottom of the U-shaped dental brace structure. The inflatable support structure is distributed along the outer edge of the U-shaped dental brace structure;

[0009] The electromagnetic sliding scanning component includes a modular scanning head and a track positioning sensor. The modular scanning head is connected to the electromagnetic sliding track through a magnetic locking mechanism. The track positioning sensors are distributed along the electromagnetic sliding track;

[0010] The upper and lower jaw linkage adjustment mechanism includes an electric telescopic column and a bite spacing sensor. The electric telescopic column connects the upper and lower jaw fixation brackets. The bite spacing sensor is arranged between the upper and lower jaw brackets;

[0011] The external central controller is wirelessly connected to the dental brace type fixation bracket, the electromagnetic sliding scanning component, and the upper and lower jaw linkage adjustment mechanism. The external central controller includes an electromagnetic track control module, a three-dimensional imaging display unit, and a physical control knob.

[0012] Further, the traction deformation mechanism includes a plurality of groups of micro electric push rods. One end of the micro electric push rod is fixed on the shape memory metal matrix, and the other end of the micro electric push rod is connected to the inner arc surface of the U-shaped dental brace structure, and the curvature radius of the dental brace is dynamically adjusted by the telescopic movement of the push rod.

[0013] Further, the negative pressure adsorption unit includes a silica gel adsorption pad and a micro vacuum pump. The silica gel adsorption pad is attached to the inner side of the bottom of the U-shaped dental appliance structure, and the micro vacuum pump is connected to the silica gel adsorption pad through a pipeline to form a local negative pressure adsorption area.

[0014] Further, the inflatable support structure includes an annular airbag and a pneumatic pressure regulating valve. The annular airbag is embedded in the outer edge of the U-shaped dental appliance structure, and the pneumatic pressure regulating valve dynamically controls the inflation pressure of the annular airbag according to the scanned area.

[0015] Further, a permanent magnet array is provided at the bottom of the modular scanning head. The electromagnetic sliding track includes a copper conductor bar and an insulating coating, and the scanning head is driven to move along the track through electromagnetic induction.

[0016] Further, the electric telescopic column includes a lifting rod and a driving motor. Both ends of the lifting rod are respectively connected to the upper and lower jaw fixed brackets through ball hinges, and the driving motor adjusts the height of the column according to the feedback data of the bite spacing sensor.

[0017] Further, the three-dimensional imaging display unit displays the scanned data in real time, and the physical control knob integrates functions such as scanning path selection, airbag pressure adjustment, and adsorption strength control.

[0018] Further, the magnetic locking mechanism includes a high-temperature sterilization ceramic base and metal contacts. The scanning head and the electromagnetic sliding track are fixed by magnetic attraction, and the adsorption is released through a mechanical unlocking device during separation.

[0019] The beneficial effects of the present invention are as follows:

[0020] By setting up a fully automatic oral scanning system with adaptive deformation fixation, dynamic environment isolation, and intelligent scanning collaborative control, the present invention utilizes the intelligent fitting and negative pressure adsorption dual locking mechanisms of the memory metal bracket to significantly improve the adaptability of the instrument to the patient's dental arch, effectively eliminating the problem of unstable fixation caused by individual differences in traditional manual operations; combined with the electromagnetic drive scanning head and the inflatable support structure, the soft tissue isolation space can be dynamically adjusted during the scanning process, synchronously suppressing the interference of lip and cheek tissue collapse on imaging, and ensuring the high-definition and complete capture of teeth and gingival lines; through real-time fusion of multi-modal data and intelligent path planning, the scanning trajectory is autonomously optimized and abnormal areas are automatically rescanned, significantly reducing the need for repeated operations. The integrated design of the system takes into account the convenience of sterilization and the safety of operation, while ensuring the scanning accuracy, significantly shortening the diagnosis and treatment time, reducing the workload of medical staff, and providing reliable support for the accurate digital modeling of complex oral cases. Description of the Drawings

[0021] Figure 1 It is the front view of the assembled overall structure;

[0022] Figure 2 Side view of the overall structure without an external central controller

[0023] Figure 3 Top view of the overall structure without an external central controller

[0024] Figure 4 Enlarged view of the unfolded electromagnetic sliding scanning assembly

[0025] Figure 5 Enlarged view of the internal structure of the negative pressure adsorption unit

[0026] Figure 6 Internal structure diagram of the external central controller

[0027] Explanation of reference numerals

[0028] 1. Braces-type fixing bracket; 101. Memory metal matrix; 102. Electromagnetic sliding track; 103. Insulating ceramic layer; 104. Snap-in interface; 105. Traction deformation mechanism; 1051. Micro electric push rod; 106. Inner arc surface chute; 107. Negative pressure adsorption unit; 1071. Silicone adsorption pad; 1072. Micro vacuum pump; 1073. Micron-level bionic groove; 1074. Medical-grade adhesive layer; 1075. Flexible pipeline; 108. Supplementary light strip; 110. Inflatable support structure; 1101. Annular airbag; 2. Electromagnetic sliding scanning assembly; 201. Modular scanning head; 202. Magnetic attraction locking mechanism; 203. Track positioning sensor; 3. Upper and lower jaw linkage adjustment mechanism; 301. Electric telescopic column; 3011. Lifting rod; 3012. Driving motor; 302. Bite spacing sensor; 4. External central controller; 401. Electromagnetic track control module; 402. Three-dimensional imaging display unit; 4021. Touch screen Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention

[0031] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the above description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the invention product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0033] In addition, terms such as "identical" do not mean that the components are required to be absolutely identical, but there can be slight differences. The term "vertical" only means that the positional relationship between components is relatively more vertical compared to "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0034] As Figures 1-6 shown, an embodiment provided by the present invention: The adaptive full-mouth fixed intelligent oral scanning system provided in this embodiment is composed of a dental brace fixed bracket 1, an electromagnetic sliding scanning assembly 2, an upper and lower jaw linkage adjustment mechanism 3, and an external central controller 4. Each module realizes the adaptive fixation and precise imaging of full-mouth scanning through mechanical and electrical coordination.

[0035] Structure and function realization of the dental brace fixed bracket 1

[0036] The main body of the dental brace fixed bracket 1 is a shape memory metal matrix 101, which is formed into a U-shaped dental brace structure by laser cutting using Ni-Ti alloy. Two parallel electromagnetic sliding tracks 102 are etched on its inner side, and the surface of the tracks is covered with an insulating ceramic layer 103 to prevent current leakage. The matrix 101 is connected to the ball hinge of the upper and lower jaw linkage adjustment mechanism 3 through a snap-in interface 104, and a spring locking mechanism is built into the snap to ensure quick assembly and stable fixation.

[0037] Six groups of micro electric push rods 1051 are evenly distributed along the inner arc surface of the matrix 101 to form a traction deformation mechanism 105. The push rod housing is made of biocompatible PEEK material, and a planetary gear reducer is integrated inside, which can convert the high-speed rotation of the motor into a high-precision linear motion. The telescopic end of the push rod is connected to the inner arc surface chute 106 of the matrix through a ball hinge. When the electric push rod 1051 expands and contracts, the curvature radius of the traction matrix 101 is dynamically adjusted, so as to adapt to the dental arch shapes of different patients and significantly improve the versatility of the instrument.

[0038] The inner side of the bottom of the base 101 is attached to the silicone adsorption pad 1071, and its surface is designed with micron-level bionic grooves 1073 to enhance the adsorption force. The bottom is bonded to the base through a medical-grade adhesive layer 1074. The adsorption pad 1071 is connected to the micro vacuum pump 1072 through a flexible pipeline 1075 to form a negative pressure adsorption unit 107. When the vacuum pump 1072 is started, the adsorption pad 1071 fits tightly with the patient's tooth root, generating a stable adsorption force, effectively preventing the bracket from shifting during scanning. Fill light strips 108 are provided on both the upper and lower sides of the electromagnetic sliding track 102.

[0039] An annular airbag 1101 made of medical silicone is embedded in the annular groove on the outer side of the base. Spiral reinforcing fibers are embedded inside the airbag to ensure uniform expansion, and the airbag is connected to the air pressure regulating valve through a quick-release air nozzle. The inflatable support structure 110 automatically adjusts the air pressure according to the scanning area. The anterior tooth area uses low-pressure expansion to avoid compressing sensitive tissues, and the posterior tooth area uses high-pressure support to fully expand the cheek soft tissue and significantly expand the scanning field of view.

[0040] Cooperative working mechanism of electromagnetic sliding scanning component 2

[0041] The modular scanning head 201 adopts a zirconia ceramic-based composite material shell, with an integrated optical lens group and a high magnetic flux density permanent magnet array, and the permanent magnets are arranged alternately with NS poles. The bottom of the scanning head 201 is connected to the electromagnetic sliding track 102 through a magnetic locking mechanism 202. The locking mechanism includes a tungsten steel buckle and a mechanical unlocking button. Pressing the button can quickly separate the scanning head for high-temperature sterilization.

[0042] Hall effect sensors are embedded equidistantly along the electromagnetic sliding track 102 to form a track positioning sensor 203. The sensor signal line is integrated into the substrate interlayer and bonded to the insulating layer 103 through conductive glue to monitor the position deviation of the scanning head 201 in real time and feed back high-precision data to the external central controller 4 for motion compensation.

[0043] Dynamic control of upper and lower jaw linkage adjustment mechanism 3

[0044] The upper and lower jaw fixed brackets 1 are connected by an electric telescopic column 301. The two ends of the carbon fiber lifting rod 3011 of the column are hinged to the base 101 through ball hinges. The driving motor 3012 has a built-in high-efficiency reduction mechanism, which can dynamically adjust the jaw spacing according to the infrared ranging data of the occlusal spacing sensor 302. The infrared transmitting module and receiving module of the sensor 302 are respectively embedded in the central groove of the occlusal surface of the upper and lower jaw bases, and the surface is covered with a hydrophobic and transparent film to prevent saliva from interfering with signal transmission. When the patient is detected to be biting his teeth, the system automatically locks the jaw spacing and starts the scanning program.

[0045] System integration and operation logic of external central controller 4

[0046] The electromagnetic track control module 401 of the external central controller 4 is connected to the base wire through a waterproof interface. The power amplifier drives the electromagnetic track 102 to generate an alternating magnetic field, which pushes the scanning head 201 to move along a preset path. The touch screen 4021 of the three-dimensional imaging display unit 402 renders the scanned point cloud data in real time and eliminates motion artifacts through the algorithm engine. The encoder knob of the physical control knob supports scanning path selection, airbag pressure grading adjustment, and adsorption strength fine-tuning. The emergency stop switch can quickly cut off the system power to ensure operation safety.

[0047] Principle of key functions working together

[0048] Adaptive fixation process:

[0049] After the patient wears the bracket, the micro vacuum pump 1072 is started, and the adsorption pad 1071 forms a stable negative pressure fixation with the tooth root.

[0050] The electric push rod 1051 expands and contracts according to a preset program, pulling the memory metal base 101 to deform to highly match the curvature of the patient's dental arch, achieving extremely low deformation error.

[0051] Dynamic environment control:

[0052] The airbag 1101 of the inflatable support structure 110 expands intelligently according to the scanning area. The low pressure in the anterior tooth area avoids tissue compression, and the high pressure in the posterior tooth area optimizes the visual field space.

[0053] Negative pressure adsorption and inflatable support are controlled by coordinated air pressure, significantly reducing energy consumption and improving stability.

[0054] Precise scanning execution:

[0055] After the electromagnetic track 102 is powered on, it generates a traveling magnetic field, driving the scanning head 201 to move along an optimized path at an appropriate speed.

[0056] The track positioning sensor 203 corrects the position offset in real time. The data collected by the optical lens group are quickly synthesized into a three-dimensional model by the controller 4 to achieve real-time imaging feedback.

[0057] The electromagnetic sliding track 102 is directly etched on the surface of the memory metal base 101. Stripping the track will damage the structural integrity of the base.

[0058] The data of the bite distance sensor 302 directly controls the height adjustment of the electric telescopic column 301. Removing the sensor will cause the jaw distance to get out of control and the scanning focal plane cannot be maintained.

[0059] The micro vacuum pump 1072 supplies gas to both the negative pressure adsorption unit 107 and the inflatable support structure 110 at the same time. A single gas path failure will cause the dual functions to fail.

[0060] Device usage steps

[0061] Preoperative Preparation and Equipment Installation

[0062] The operator first places the upper and lower jaw components of the dental brace - type fixing bracket into the patient's oral cavity respectively, connects them to the adjustment mechanism through the buckle interface to ensure the preliminary fixation of the bracket. Manually adjust the position of the bracket to roughly fit the contour of the patient's dental arch, providing a basic positioning for subsequent adaptive deformation. Subsequently, quickly dock the flexible pipeline of the silicone adsorption pad with the vacuum pump, start the pre - operation mode, and observe that the surface of the adsorption pad evenly fits the root area. At the same time, connect the air nozzle of the annular airbag to the pressure valve, perform low - pressure pre - inflation, so that the airbag slightly expands and makes preliminary contact with the oral soft tissue to avoid excessive compression.

[0063] System Adaptive Adjustment and Calibration

[0064] Start the shape adaptation mode of the external controller. The micro - electric push rod slowly extends and retracts through the gear reducer, pulling the memory metal bracket to gradually deform. Observe the fitting degree with the patient's dental arch in real - time until it is completely matched. During the deformation process, the curvature of the matrix is dynamically adjusted to adapt to the differences in dental arch shapes of different patients, such as the wider dental arch of adults or the narrower dental arch of children. Then, briefly activate the electromagnetic sliding track, manually push the scanning head to slide along the track, verify the signal feedback stability of the positioning sensor, and finely adjust the track current through the controller to ensure that the scanning head starts and stops sensitively. When the patient slightly bites, the jaw - spacing sensor detects data in real - time, and the linkage adjustment mechanism automatically adjusts the height of the bracket to maintain the stability of the scanning focal plane. At this time, the controller displays the "ready" status prompt.

[0065] Scanning Execution and Dynamic Control

[0066] After entering the scanning stage, the annular airbag inflates differently according to the anatomical characteristics of the anterior tooth area and the posterior tooth area: the anterior tooth area inflates slowly at low pressure to avoid compressing sensitive tissues; the posterior tooth area expands rapidly at high pressure to fully expand the buccal soft tissues and expand the scanning field of view. The negative pressure adsorption is enhanced synchronously to inhibit the displacement caused by the slight movement of the patient's tongue or swallowing. The controller generates an optimized S - shaped scanning path, and the electromagnetic track drives the scanning head to move at a constant speed. The positioning sensor corrects the path deviation in real - time. The data collected by the optical lens is rendered in real - time by the imaging engine. If it is detected that the data is missing due to soft - tissue occlusion, the system automatically triggers local supplementary scanning, and the scanning head returns to the abnormal area to re - collect data to ensure the integrity of the model.

[0067] Post - operative Treatment and Equipment Maintenance

[0068] After the scanning is completed, press the unlocking button of the magnetic locking mechanism to separate the scanning head, place it in the high-temperature sterilization chamber for treatment, and the ceramic housing and metal components can withstand repeated sterilization. Remove the silicone adsorption pad and airbag, clean the surface grooves with medical enzyme cleaning solution, check the airtightness of the pipeline and replace the aging sealing ring. Turn off the power of the controller, disconnect the electrical connection, and store the bracket in the dust-proof box. Lubricate and maintain the gear mechanism of the electric push rod regularly to ensure smooth deformation adjustment.

[0069] Technical effects of the device

[0070] High-precision adaptive fixation

[0071] Through the synergistic effect of the intelligent deformation adjustment of the memory metal bracket and negative pressure adsorption, the system can quickly adapt to the dental arch shapes of different patients, achieve full-mouth rigid fixation, and significantly improve the positioning accuracy. Combined with the dynamic jaw spacing adjustment technology, it can effectively suppress the micro-movement of the patient's head and the displacement of oral soft tissues, ensure the stable positions of teeth and gums during scanning, avoid imaging blurring or data loss caused by traditional manual operations, and improve the scanning success rate to the leading level in the industry.

[0072] Precise control in a dynamic environment

[0073] The intelligent inflatable support system differentially adjusts the pressure according to the anatomical characteristics of the anterior tooth area and the posterior tooth area. The low pressure in the anterior tooth area is slowly released to avoid tissue compression, and the high pressure in the posterior tooth area expands to fully expose the scanning field of view. With the real-time compensation mechanism of negative pressure adsorption, it can dynamically maintain a stable space in the oral cavity throughout the scanning process, completely solve the problem of soft tissue collapse and occlusion, and make the imaging integrity rate of key areas such as the gingival margin and adjacent surfaces close to 100%.

[0074] Fully automatic precise scanning and imaging

[0075] The electromagnetic drive scanning module combines with a high-sensitivity positioning sensor to achieve autonomous planning and real-time correction of the scanning path. The optimized S-shaped movement trajectory can cover the entire surface of the teeth, and the optical system can still obtain high-fidelity three-dimensional data in a complex oral environment. The real-time imaging engine synchronously renders the point cloud model and intelligently identifies local data missing areas, automatically triggering the rescan mechanism to ensure that the model accuracy and integrity meet the clinical diagnosis requirements.

[0076] High stability and reliability of the system

[0077] The integrated heat dissipation design and electromagnetic shielding technology ensure the stable operation of the device during long-term scanning, avoiding data drift caused by temperature rise or electromagnetic interference. Key components are made of high-temperature sterilization-resistant materials, support repeated use without performance degradation. The adaptive fault detection system can real-time monitor core parameters such as air pressure and current, and immediately start the protection program in case of abnormalities, minimizing the operation risk to the greatest extent.

[0078] Intelligent operation and efficient process

[0079] The external controller integrates intelligent algorithms, which can automatically match scanning parameters according to the patient's oral characteristics and start the full-process operation with one key. The touch screen displays the 3D model and the device status in real time, and doctors can quickly adjust the scanning range or pressure level through the knob. The system automatically records the scanning data and generates a structured report, supporting seamless docking with dental CAD / CAM systems, significantly shortening the diagnosis and treatment cycle.

[0080] Personalized diagnosis and treatment adaptation

[0081] The system is built-in with multiple preset modes, which can automatically adjust the scanning strategy according to different clinical needs such as children, orthodontic patients, and tooth defect restoration. Combined with AI-assisted analysis, it can identify subtle features such as enamel wear and gum recession, providing a high-precision data basis for the design of personalized restorations and significantly improving the marginal adaptability and occlusal matching degree of restorations.

[0082] All-round safety guarantee

[0083] The flexible adsorption contact surface and the pressure-sensitive control system provide double protection to avoid mechanical damage to the oral mucosa or tooth roots by the instrument. The electromagnetic drive module adopts a low-power design, and the working current strictly complies with medical safety standards. The emergency braking device can cut off the power within 0.1 second to prevent the instrument from malfunctioning in case of an accident, providing full-process safety guarantee for patients.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A fully automatic adaptive oral scanning and fixing system, characterized in that: It includes a dental brace type fixed bracket, an electromagnetic sliding scanning component, an upper and lower jaw linkage adjustment mechanism and an external central controller; The braces-type fixed bracket includes a memory metal matrix, a traction deformation mechanism, a negative pressure adsorption unit and an inflatable support structure. The memory metal matrix is ​​a U-shaped braces structure. An electromagnetic sliding track is arranged inside the memory metal matrix. The traction deformation mechanism is distributed along the inner arc surface of the U-shaped braces structure and is connected to the memory metal matrix. The negative pressure adsorption unit is arranged on the inner side of the bottom of the U-shaped braces structure. The inflatable support structure is distributed along the outer edge of the U-shaped braces structure. The electromagnetic sliding scanning assembly includes a modular scanning head and a track positioning sensor, wherein the modular scanning head is connected to the electromagnetic sliding track through a magnetic locking mechanism, and the track positioning sensor is distributed along the electromagnetic sliding track; The upper and lower jaw linkage adjustment mechanism includes an electric telescopic column and an occlusal spacing sensor, wherein the electric telescopic column is connected to the upper and lower jaw fixed brackets, and the occlusal spacing sensor is arranged between the upper and lower jaw brackets; The external central controller is connected to the braces-type fixed bracket, the electromagnetic sliding scanning assembly and the upper and lower jaw linkage adjustment mechanism through wireless signals. The external central controller includes an electromagnetic track control module, a three-dimensional imaging display unit and a physical control knob.

2. The fully automatic adaptive oral scanning and fixing system according to claim 1, characterized in that: The traction deformation mechanism includes multiple groups of micro electric push rods, one end of the micro electric push rod is fixed on the memory metal substrate, and the other end of the micro electric push rod is connected to the inner arc surface of the U-shaped braces structure, and the curvature radius of the braces is dynamically adjusted by telescoping the push rods.

3. The fully automatic adaptive oral scanning and fixing system according to claim 1, characterized in that: The negative pressure adsorption unit includes a silicone adsorption pad and a micro vacuum pump. The silicone adsorption pad is attached to the inner side of the bottom of the U-shaped braces structure. The micro vacuum pump is connected to the silicone adsorption pad through a pipeline to form a local negative pressure adsorption area.

4. The fully automatic adaptive oral scanning and fixing system according to claim 1, characterized in that: The inflatable support structure includes an annular airbag and an air pressure regulating valve. The annular airbag is embedded in the outer edge of the U-shaped braces structure. The air pressure regulating valve dynamically controls the expansion pressure of the annular airbag according to the scanning area.

5. The fully automatic adaptive oral scanning and fixing system according to claim 1, characterized in that: A permanent magnet array is arranged at the bottom of the modular scanning head, and the electromagnetic sliding track comprises a copper guide bar and an insulating coating, and the scanning head is driven to move along the track by electromagnetic induction.

6. The fully automatic adaptive oral scanning and fixing system according to claim 1, characterized in that: The electric telescopic column includes a lifting rod and a driving motor. Both ends of the lifting rod are respectively connected to the upper and lower jaw fixing brackets through ball hinges. The driving motor adjusts the height of the column according to feedback data from the occlusal spacing sensor.

7. The fully automatic adaptive oral scanning and fixing system according to claim 1, characterized in that :The three-dimensional imaging display unit displays the scanning data in real time, and the physical control knob integrates the scanning path selection, airbag pressure adjustment and adsorption intensity control functions.

8. The fully automatic adaptive oral scanning and fixing system according to claim 1, characterized in that :The magnetic locking mechanism includes a high-temperature sterilized ceramic base and metal contacts. The scanning head and the electromagnetic sliding track are fixed by magnetic attraction, and the adsorption is released by a mechanical unlocking device when separated.

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