A screw expander force parameter monitoring device

Abstract

This invention relates to the field of oral medicine technology and discloses a monitoring device for the force parameters of a spiral expander, comprising a spiral expander, two miniature mechanical sensors, an analog-to-digital converter, and a signal processor. The sensors sense real-time mechanical changes in the denture base, and the signal processor acquires digital signals at a set frequency. Based on a preset effective force range and frequency logic, it actively identifies situations such as "insufficient force," "overload," and "abnormal frequency," significantly mitigating risks such as root resorption that may be caused by improper orthodontic forces, and optimizing wearing time while ensuring the expansion effect. Simultaneously, the device can instantly determine whether the wearing method is correct by sensing the distribution of mechanical signals on both sides; by identifying the effective force and counting the number of times within a cycle, it achieves quantitative management of wearing time and force compliance, ensuring that the operation conforms to the doctor's recommendations. The core sensors are reusable, offering good clinical operability and economy.

Description

Technical Field

[0001] This invention relates to the field of oral medicine technology, and in particular to a device for monitoring the force parameters of a spiral expander. Background Technology

[0002] Spiral expanders are commonly used removable orthodontic appliances in orthodontic treatment. Patients need to apply corrective force periodically (e.g., every three days) by manually rotating the spiral mechanism. The use of spiral expanders relies heavily on the patient's self-awareness and adjustments to the usage plan based on follow-up examination records, resulting in slow effectiveness. Furthermore, existing spiral expanders cannot accurately record the number of force applications and the force applied, easily leading to over- or under-applied force. They also lack clinically standardized force threshold judgment logic and cannot proactively provide feedback on force application compliance (e.g., they cannot define "insufficient force," "excessive force," or "abnormal force application frequency").

[0003] Therefore, there is an urgent clinical need for a device that can accurately monitor the force parameters of the spiral expander in order to improve the expansion efficiency and reduce the wearing time while meeting the expansion effect. Summary of the Invention

[0004] This invention provides a device for monitoring the force parameters of a spiral bow expander, in order to overcome the shortcomings of the prior art.

[0005] This invention provides a device for monitoring the force parameters of a spiral expander. It includes a spiral expander, two miniature force sensors, an analog-to-digital converter, and a signal processor; The spiral expander includes a spiral device and a left base and a right base respectively located on the left and right sides of the spiral device and connected to the spiral arm of the spiral device; The two micro mechanical sensors are respectively disposed in the stress concentration area between the left base, the right base and the spiral device. Each micro mechanical sensor is used to sense the mechanical signal corresponding to the deformation of the corresponding side base due to the expansion force generated by the rotation of the spiral device, and convert the mechanical signal into an electrical signal. The analog-to-digital converter is electrically connected to the miniature mechanical sensor and is used to convert the electrical signal into a digital signal; The signal processor is communicatively connected to the analog-to-digital converter and is configured to acquire force data corresponding to the digital signal at a set frequency, and generate monitoring data and corresponding feedback signals characterizing the force parameters based on the comparison results of the force data and a preset force threshold range.

[0006] In some embodiments, the base includes two bases, a left base and a right base, located on the left and right sides of the spiral device and connected to the spiral arm of the spiral device, forming a symmetrical layout. In some embodiments, the base may be made of a biocompatible resin material to ensure safety, comfort, and durability during long-term contact with the oral mucosa, while possessing sufficient structural rigidity to transmit the axial thrust generated by the rotation of the spiral device to the embedded micromechanical sensor. In some embodiments, the base is custom-molded according to a plaster model of the patient's upper and lower jaws, allowing the base to conform to the oral tissue, thereby providing a stable and repeatable force transmission path for the micromechanical sensor.

[0007] According to the present invention, a monitoring device for the force parameters of a spiral expander is provided, wherein each of the micro mechanical sensors is encapsulated inside the corresponding side base, and the distance between the micro mechanical sensor and the spiral arm rotation axis of the spiral device is a preset value, and the micro mechanical sensor is fixedly connected to the base.

[0008] In some embodiments, two miniature force sensors are embedded in the stress concentration areas between the left and right baseplates and the spiral device, respectively. These areas directly bear the axial thrust generated during spiral rotation, enabling real-time capture of force changes. In some embodiments, each miniature force sensor is encapsulated inside the corresponding side baseplate, with a distance of 0.5 cm between it and the spiral arm's rotation axis to ensure the shortest force transmission path and highest signal acquisition sensitivity. In some embodiments, the miniature force sensors employ a thin design and are fixedly connected to the baseplate to ensure stability, thereby minimizing the impact on the overall thickness of the baseplate and reducing interference with wearing comfort while maintaining sensing accuracy. In some embodiments, the miniature force sensors incorporate a built-in filtering circuit to filter the force signal, improving its accuracy. In some embodiments, the miniature force sensors can be removed from the baseplate and reused to reduce clinical usage costs.

[0009] According to the present invention, a device for monitoring the force parameters of a spiral bow expander is provided, wherein the miniature mechanical sensor has a built-in filtering circuit for filtering the mechanical signal.

[0010] In some embodiments, the analog-to-digital converter (ADC) is electrically connected to the miniature force sensor and converts the electrical signal output by the miniature force sensor into a digital signal. In some embodiments, the ADC has a 12-bit resolution to ensure that the force data is accurate enough for subsequent threshold comparison. In some embodiments, the ADC is electrically connected to the miniature force sensor via a wire and transmits the converted digital signal to a signal processor.

[0011] According to the present invention, a device for monitoring the force parameters of a spiral bow expander is provided. The usage of the spiral bow expander includes any one or any combination of the following: the number of times force is applied, the force value, the force frequency, and whether the force application is abnormal.

[0012] According to the present invention, a device for monitoring the force application parameters of a spiral bow expander is provided, wherein the signal processor is configured to: record the force value data as an effective force application when the force value data is continuously within the preset force value threshold range and maintained for not less than a preset duration, and count the number of force applications accordingly; the preset duration is 5 seconds.

[0013] According to the present invention, a device for monitoring the force parameters of a spiral expander is provided, wherein the signal processor is configured to generate monitoring data characterizing whether the force is abnormal in the following manner: When the peak value of the force applied in N consecutive effective applications is lower than the lower limit of the preset force threshold range, the monitoring data indicates insufficient force application. When the peak value of a single effective applied force exceeds the upper limit of the preset force threshold range, the monitoring data indicates an applied force overload. When the peak value of a single effective force application is within the preset force threshold range, the monitoring data indicates that the force application is normal.

[0014] In some implementations, N is 3, meaning that insufficient force is indicated when the peak force value of three consecutive effective applications is below the lower limit. It should be noted that the ideal force threshold range is a dynamic and personalized interval, depending on the treatment goals, patient age, and biological feedback during treatment. This invention can set the force threshold range according to the individual patient. In some implementations, for minors, the preset force threshold range is set based on clinical orthodontic data, with a lower limit of 3 Newtons and an upper limit of 5 Newtons. In some implementations, for adults, the preset force threshold range is set based on clinical orthodontic data, with a lower limit of 3 Newtons and an upper limit of 8 Newtons.

[0015] According to the present invention, a spiral expander force parameter monitoring device is provided, wherein the signal processor is further configured to: count the number of effective force applications within a set period; when the number of applications is outside the preset force application range, the monitoring data indicates an abnormal force application frequency; when the number of applications is within the preset force application range, the monitoring data indicates a normal force application frequency. In some embodiments, the preset force application range is determined according to the force application plan set by the doctor, for example, set to once every 3 days.

[0016] According to the present invention, a spiral bow expander force parameter monitoring device is provided, wherein the signal processor is further configured with low-power activation logic: the comparison function is activated only when the force value data changes beyond a preset force value threshold range; when the force value data shows a continuous gradient decrease (corresponding to the normal state of natural decay of the corrective force over time), the inactive state is maintained, thereby reducing power consumption and extending battery life.

[0017] A spiral expander force parameter monitoring device according to the present invention further includes a wireless transmission module. The wireless transmission module is connected to the signal processor and configured to transmit the monitoring data and the feedback signal to an external terminal, including a patient-use terminal and / or a doctor-use terminal. In some embodiments, the wireless transmission module is a Bluetooth module, such as Bluetooth 5.0, to ensure real-time and reliable data transmission. In some embodiments, the data transmitted by the wireless transmission module carries a timestamp so that the external terminal can perform time-series recording and statistical analysis of the force value data. In some embodiments, the data packet corresponding to the feedback signal includes data for presenting a real-time force value curve and effective force count on the external terminal. In some embodiments, the wireless transmission module is further configured to receive a configuration command sent by the external terminal, and the signal processor updates at least one threshold parameter in a preset force value threshold range according to the configuration command to adapt to the force parameter requirements of different treatment stages.

[0018] A spiral bow expander force parameter monitoring device according to the present invention further includes a power supply module, which is electrically connected to the miniature mechanical sensor and is used to power the miniature mechanical sensor. In some embodiments, the power supply module is a rechargeable battery supporting wireless charging and adopts a low-power design, combined with the low-power activation logic of the signal processor, to meet the battery life requirements in long-term wear scenarios. In some embodiments, the power supply module is integrated inside the base and replenished with power via wireless charging to avoid safety and sealing issues caused by the charging interface being exposed to the oral cavity environment. This invention provides a monitoring device for the force application parameters of a spiral expander. Through a miniature mechanical sensor positioned between the left / right base and the spiral mechanism of the expander, it senses real-time mechanical changes in the base. A signal processor acquires digital signals from an analog-to-digital converter at a set frequency. Deeply integrated with clinical standards, this device enables precise force application monitoring and compliance assessment. Based on a preset effective force range of 3-5N and a preset frequency logic for force application, it proactively identifies situations such as "insufficient force," "overload," and "abnormal frequency," significantly mitigating clinical risks such as root resorption caused by improper orthodontic forces. It also optimizes wearing time while ensuring effective expansion. Simultaneously, by sensing the distribution of mechanical signals on both sides, the device can instantly determine whether the wearing method is correct, preventing deviations from the preset plan due to incorrect wearing. By identifying "effective force" and counting the number of applications within a cycle, it achieves quantitative management of wearing time and force application compliance, ensuring that key operations during the treatment cycle conform to the doctor's recommendations. Furthermore, the core miniature mechanical sensor is reusable and has low manufacturing costs, offering good clinical operability and economy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 The diagram shows the installation of a miniature mechanical sensor on a spiral expander. The reference numerals are: 1. Spiral device; 2. Base; 3. Miniature mechanical sensor.

[0021] Figure 2 This invention illustrates the monitoring process of a spiral bow expander force parameter monitoring device provided in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of this invention, and should not be construed as limiting the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. In the description of this invention, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] This invention provides a monitoring device for the force parameters of a spiral expander, comprising a spiral expander, two miniature mechanical sensors, two analog-to-digital converters (e.g., 12-bit ADCs), a signal processor, and a power supply module. The spiral expander includes a spiral assembly and left and right bases located on the left and right sides of the spiral assembly and connected to the spiral arms of the spiral assembly, respectively. The two miniature mechanical sensors are respectively disposed in the stress concentration areas between the left and right bases and the spiral assembly. Each miniature mechanical sensor senses the mechanical signal corresponding to the deformation of the corresponding base caused by the expansion force generated by the rotation of the spiral assembly, and converts the mechanical signal into an electrical signal. The two ADCs are electrically connected to the two miniature mechanical sensors via wires, converting the electrical signals from the miniature mechanical sensors into digital signals. The signal processor communicates wirelessly with the two ADCs via Bluetooth (wireless transmission ensures real-time data quality and reliability). The signal processor is configured to acquire force value data corresponding to the digital signals from the two ADCs at a set frequency, and based on the comparison results of the force value data with a preset force value threshold range, generate monitoring data characterizing the force parameters and corresponding feedback signals. The power supply module is electrically connected to the miniature mechanical sensors to supply power to them.

[0024] In one embodiment, each miniature force sensor is encapsulated inside the corresponding side base, and the distance between it and the rotation axis of the spiral arm of the spiral device is 0.5 cm (see [reference]). Figure 1 This ensures the shortest force transmission path. Furthermore, the miniature force sensor employs a thin design, allowing for a fixed connection between it and the base, thus guaranteeing stability.

[0025] In one embodiment, the miniature force sensor incorporates a filtering circuit to filter the force signal, thereby improving its accuracy. Furthermore, the analog-to-digital converter has a 12-bit resolution.

[0026] In one embodiment, during the process of the signal processor monitoring the use of the spiral expander based on digital signals, the number of times the spiral expander applies force, the force value, the force frequency, and whether the force is abnormal can be monitored.

[0027] Specifically, the signal processor is configured to: record a valid force application when the force value data is continuously within the preset force value threshold range and maintained for no less than a preset duration, and count the number of force applications accordingly; the preset duration is 5 seconds, which can both avoid force changes caused by accidental touches and record the actual number of force applications.

[0028] Specifically, the signal processor is configured to generate monitoring data characterizing whether the applied force is abnormal in the following manner: When the peak value of the force applied in N consecutive effective applications is lower than the lower limit of the preset force threshold range, the monitoring data indicates insufficient force application. When the peak value of a single effective applied force exceeds the upper limit of the preset force threshold range, the monitoring data indicates an applied force overload. When the peak value of a single effective applied force is within the preset force threshold range, the monitoring data indicates that the applied force is normal. The lower limit of the preset force threshold range is 3 Newtons, and the upper limit is 5 Newtons.

[0029] Specifically, the signal processor is further configured to: count the number of effective force applications within a set period; when the number of applications is not within the preset range (e.g., once every 3 days as set by the doctor), the monitoring data indicates an abnormal force application frequency; when the number of applications is within the preset range, the monitoring data indicates a normal force application frequency.

[0030] Specifically, the signal processor is further configured to: activate the comparison function when the force value data changes beyond the preset force value threshold range, and maintain the inactive state when the force value data shows a continuous gradient decrease.

[0031] In one embodiment, the signal processor is further configured to issue warnings based on the usage status of the helical expander. For example, when the usage status of the helical expander indicates insufficient force, an insufficient force warning is issued; when the usage status of the helical expander indicates force overload, an overload warning is issued; and when the usage status of the helical expander indicates abnormal force frequency, an abnormal force frequency warning is issued.

[0032] In one embodiment, the signal processor is further configured to generate a usage report for the spiral expander based on its usage, including the number of times force was applied, the applied force value, the applied force frequency, whether the applied force was abnormal, warnings, and signal distribution. The signal processor can also be configured to send the spiral expander usage report to a patient's terminal and / or a doctor's terminal.

[0033] In one embodiment, when a patient wears the orthodontic appliance, the signal processor can monitor the contact force signals between the base and oral tissues on both sides in real time using miniature mechanical sensors. By measuring the contact pressure distribution between the base and the palatal mucosa, it can determine in real time whether the appliance is worn correctly. If the difference in pressure distribution sensed by the sensors on both sides exceeds a preset threshold, it is determined that the appliance may have problems such as poor fit, misalignment, or displacement on one side. The mechanical basis of the above judgment logic is that the non-uniform stress distribution caused by asymmetrical force is a proven phenomenon in the field of orthodontics. Reports have confirmed that asymmetrical expansion of band expanders is not uncommon but the norm in clinical use, with expansion biased towards the cross occlusion side, and the occlusal width can increase to twice that of the non-cross occlusion side, indicating that the appliance exhibits a significant unilateral tendency in intraoral force. Therefore, when a patient wears the appliance incorrectly or not properly fitted on one side, the force on the base on the same side is significantly less, while the opposite side generates a relatively higher mechanical signal due to excessive force. The signal processor can immediately identify whether the wearing status is compliant by comparing the pressure value distribution collected by the left and right sensors.

[0034] In one embodiment, the detection device further includes a wireless transmission module connected to the signal processor and configured to send the monitoring data and the feedback signal to an external terminal. The data sent by the wireless transmission module carries a timestamp. The data packet corresponding to the feedback signal includes data for presenting a real-time force curve and an effective force count on the external terminal.

[0035] Specifically, the wireless transmission module is also configured to receive configuration instructions sent by the external terminal, and the signal processor updates at least one threshold parameter in the preset force value threshold range according to the configuration instructions.

[0036] In one embodiment, since the spiral expander needs to be worn for extended periods, the power supply module for the miniature force sensor can be a wirelessly rechargeable battery.

[0037] The following describes the fabrication and use of the spiral bow expander force parameter monitoring device of the present invention, with reference to a specific embodiment. The device in this embodiment includes a spiral bow expander, two miniature force sensors, an analog-to-digital converter, a signal processor, a wireless transmission module, and a power supply module. The spiral bow expander includes a spiral assembly and a left and right base located on the left and right sides of the spiral assembly and connected to the spiral arms of the spiral assembly, respectively.

[0038] I. The fabrication process of the device In one embodiment, during a patient's visit, plaster models of the patient's upper and lower jaws are first created. Subsequently, a spiral expander containing micro-mechanical sensors is fabricated based on these plaster models. The left and right baseplates are molded from biocompatible resin material according to the plaster models to ensure a close fit to oral tissues and appropriate comfort and durability. During the molding process, a micro-mechanical sensor is embedded in the stress concentration area between the left and right baseplates and the spiral mechanism. Each micro-mechanical sensor is encapsulated inside the corresponding side baseplate, with a distance of 0.5 cm between it and the rotation axis of the spiral arm of the mechanism, and is fixedly connected to the baseplate. This stress concentration area directly bears the axial thrust generated by the rotation of the spiral mechanism, thus enabling real-time capture of force changes. The micro-mechanical sensors are designed to be thin to minimize the impact on the overall thickness of the baseplate and wearing comfort, and can be removed from the baseplate for reuse when needed.

[0039] In one embodiment, the analog-to-digital converter is electrically connected to the miniature force sensor via a wire, the signal processor is wirelessly connected to the analog-to-digital converter via Bluetooth or other wireless means, and the power supply module is electrically connected to the miniature force sensor and is powered by a rechargeable battery that supports wireless charging, thereby forming a complete force parameter monitoring device.

[0040] II. Wearing and Force Parameter Monitoring Process (see attached document) Figure 2 ) In one embodiment, the patient wears the spiral expander as instructed by a doctor and manually rotates the spiral device according to a set force application schedule (e.g., once every 3 days). When the patient rotates the spiral device, the left and right baseplates deform under stress. Miniature mechanical sensors embedded in the stress concentration areas on both sides sense the mechanical signals corresponding to the deformation of the corresponding baseplates due to the expanding force and convert these mechanical signals into electrical signals. An analog-to-digital converter converts the electrical signals into digital signals. A signal processor acquires the force value data corresponding to the digital signals at a set frequency.

[0041] In one embodiment, the signal processor compares the acquired force value data with a preset force value threshold range (in this embodiment, it is set to 3-5 Newtons based on clinical data of orthodontics) in real time, and generates monitoring data and corresponding feedback signals characterizing the force application parameters. The force application parameters may include the number of force applications, the force value, the force application frequency, and whether the force application is abnormal.

[0042] Specifically, in one embodiment, when the force value data is continuously within the range of 3 to 5 Newtons and is maintained for no less than a preset duration (5 seconds in this embodiment), the signal processor records it as an effective force application and counts the number of force applications accordingly; the duration of 5 seconds is used to exclude false triggering caused by occasional external forces (such as chewing or accidental touch).

[0043] In one embodiment, the signal processor further generates monitoring data characterizing whether the applied force is abnormal as follows: when the peak force value of effective applied force is less than 3 Newtons for N consecutive times (N is 3 in this embodiment), the monitoring data indicates insufficient applied force; when the peak force value of a single effective applied force is higher than 5 Newtons, the monitoring data indicates applied force overload; when the peak force value of a single effective applied force is within the range of 3 to 5 Newtons, the monitoring data indicates normal applied force. In one embodiment, the signal processor also counts the number of effective applied forces within a set period. When this number is not within the preset number of applied forces (e.g., corresponding to a plan of once every 3 days), the monitoring data indicates an abnormal applied force frequency; otherwise, it indicates a normal applied force frequency.

[0044] In one embodiment, to reduce power consumption and extend battery life, the signal processor adopts low-power activation logic: the comparison function is activated only when the force value data changes beyond a preset force value threshold range; when the force value data shows a continuous gradient decrease (corresponding to the normal state of natural decay of the corrective force over time), the signal processor remains inactive and does not trigger the comparison.

[0045] III. Feedback and Follow-up Visit Reference Process In one embodiment, the signal processor transmits the monitoring data and feedback signals to an external terminal via a wireless transmission module. The external terminal includes a patient-use terminal and / or a doctor-use terminal. The transmitted data carries a timestamp, and the data packet corresponding to the feedback signal includes data for displaying a real-time force curve and effective force count on the external terminal. When the monitoring data indicates insufficient force, overload, or abnormal force application frequency, the external terminal presents corresponding prompts to the user. The patient can then adjust the force or frequency of their rotating screw device. Once the force value data returns to the 3-5 Newton range and the force application frequency recovers to the preset range, the prompts are deactivated.

[0046] In one embodiment, the wireless transmission module can also receive configuration instructions sent by an external terminal. The signal processor updates at least one threshold parameter within a preset force threshold range according to the configuration instructions to adapt to the force parameter requirements at different treatment stages. The aforementioned monitoring data can be synchronously uploaded and saved to the doctor's terminal for reference during patient follow-up visits, in order to adjust and design subsequent treatment plans.

[0047] The spiral expander force parameter monitoring device provided by this invention uses miniature mechanical sensors placed between the left / right base and the spiral device of the spiral expander to sense the mechanical changes of the base in real time. A signal processor then acquires digital signals from an analog-to-digital converter at a set frequency. Deeply integrated with clinical standards, it enables precise force monitoring and compliance assessment. Based on a preset effective force range of 3-5N and a preset frequency logic for force application, it can proactively identify situations such as "insufficient force," "overload," and "abnormal frequency," significantly mitigating clinical risks such as root resorption that may be caused by improper orthodontic forces. It can also optimize wearing time while ensuring the expansion effect. Simultaneously, by sensing the distribution of mechanical signals on both sides, the device can instantly determine whether the wearing method is correct, avoiding deviations from the preset plan due to incorrect wearing. By identifying "effective force" and counting the number of applications within a cycle, it achieves quantitative management of wearing time and force compliance, ensuring that key operations during the treatment cycle conform to the doctor's recommendations. Furthermore, the core miniature mechanical sensor is reusable and has low manufacturing costs, offering good clinical operability and economy.

[0048] 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 foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for monitoring the force parameters of a spiral expander, characterized in that, It includes a spiral expander, two miniature force sensors, an analog-to-digital converter, and a signal processor; The spiral expander includes a spiral device and a left base and a right base respectively located on the left and right sides of the spiral device and connected to the spiral arm of the spiral device; The two micro mechanical sensors are respectively disposed in the stress concentration area between the left base, the right base and the spiral device. Each micro mechanical sensor is used to sense the mechanical signal corresponding to the deformation of the corresponding side base due to the expansion force generated by the rotation of the spiral device, and convert the mechanical signal into an electrical signal. The analog-to-digital converter is electrically connected to the miniature mechanical sensor and is used to convert the electrical signal into a digital signal; The signal processor is communicatively connected to the analog-to-digital converter and is configured to acquire force data corresponding to the digital signal at a set frequency, and generate monitoring data and corresponding feedback signals characterizing the force parameters based on the comparison results of the force data and a preset force threshold range.

2. The device for monitoring the force parameters of a spiral bow expander according to claim 1, characterized in that, Each of the miniature mechanical sensors is encapsulated inside the corresponding side base, and the distance between it and the rotation axis of the spiral arm of the spiral device is 0.5 cm. The miniature mechanical sensors are fixedly connected to the base.

3. The device for monitoring the force parameters of a spiral bow expander according to claim 1, characterized in that, The force parameters include any one of the following or any combination thereof: number of force applications, force value, force application frequency, and whether the force application is abnormal.

4. The spiral bow expander force parameter monitoring device according to claim 3, characterized in that, The signal processor is configured to: record the force value data as an effective force application when the force value data is continuously within the preset force value threshold range and maintained for no less than a preset duration, and count the number of force applications accordingly; the preset duration is 5 seconds.

5. The spiral bow expander force parameter monitoring device according to claim 4, characterized in that, The signal processor is configured to generate monitoring data characterizing whether the applied force is abnormal in the following manner: When the peak value of the force applied in N consecutive effective applications is lower than the lower limit of the preset force threshold range, the monitoring data indicates insufficient force application. When the peak value of a single effective applied force exceeds the upper limit of the preset force threshold range, the monitoring data indicates an applied force overload. When the peak value of a single effective force application is within the preset force threshold range, the monitoring data indicates that the force application is normal.

6. The spiral bow expander force parameter monitoring device according to claim 4, characterized in that, The signal processor is further configured to: count the number of effective force applications within a set period; when the number of applications is outside the preset range, the monitoring data indicates an abnormal force application frequency; when the number of applications is within the preset range, the monitoring data indicates a normal force application frequency.

7. The device for monitoring the force parameters of a spiral expander according to any one of claims 1 to 6, characterized in that, The signal processor is further configured to: activate the comparison function when the force value data changes beyond the preset force value threshold range, and maintain the inactive state when the force value data shows a continuous gradient decrease.

8. The device for monitoring the force parameters of a spiral bow expander according to claim 1, characterized in that, It also includes a wireless transmission module, which is connected to the signal processor and configured to send the monitoring data and the feedback signal to an external terminal. The data sent by the wireless transmission module carries a timestamp. The data packet corresponding to the feedback signal includes data for presenting a real-time force curve and an effective force count on the external terminal.

9. The spiral bow expander force parameter monitoring device according to claim 8, characterized in that, The wireless transmission module is also configured to receive configuration instructions sent by the external terminal, and the signal processor updates at least one threshold parameter in the preset force value threshold range according to the configuration instructions.

10. The device for monitoring the force parameters of a spiral expander according to claim 1, characterized in that, It also includes a power supply module, which is electrically connected to the miniature force sensor, and the power supply module is a rechargeable battery that supports wireless charging.

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