Facial skin care contact type skin beautifying instrument
By integrating an optical detection module and a conductive block into a vision-touch fusion microneedle system, the problems of insufficient real-time feedback and facial surface adaptability in microneedle beauty devices have been solved, achieving precise and safe skin care and improving the efficiency of drug utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG BAIAO MEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2026-01-31
- Publication Date
- 2026-04-17
AI Technical Summary
Existing microneedling devices lack the ability to perceive and provide feedback on real-time skin conditions, leading to blind operation, easy spillage of the medication resulting in waste, and difficulty adapting to facial contours, resulting in poor contact or intermittent current.
The system employs a vision-touch fusion microneedle system, integrating an optical detection module to acquire skin data in real time. Combined with conductive blocks and buffer components, it achieves closed-loop control and adaptive adhesion, while limiting the range of medication through restrictive strips.
It improves the precision and safety of skin care, reduces waste of medication, and ensures the stability and uniform application of the current circuit.
Smart Images
Figure CN121868690A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cosmetic medical device technology, specifically to a facial skin care contact skin beauty device. Background Technology
[0002] Microneedling, a common skin repair and care technique, primarily uses a microneedle array to instantly penetrate the stratum corneum of the skin, creating microchannels to promote transdermal absorption of nutrients or stimulate the skin's self-repair mechanisms through physical stimulation. Existing handheld microneedling devices typically utilize motors to drive microneedle components in high-frequency reciprocating motion. While capable of basic puncture and insertion procedures, their structural design and functional configuration still have technical limitations in practical clinical or home settings.
[0003] Most existing microneedling devices employ an open-loop control mode, meaning they can only operate at fixed frequencies and depths preset by the factory or manually set by the user. The devices themselves lack the ability to sense and provide feedback on the real-time condition of the skin. During the procedure, the operator cannot perceive microscopic changes in the skin's surface, such as erythema, moisture, or texture, leading to treatments relying primarily on experience. This data-lacking, blind approach easily results in overtreatment of sensitive areas or undertreatment of tolerant areas, making it difficult to achieve precise and safe care.
[0004] Furthermore, microneedling treatments typically require the use of liquid medications or gel media to aid lubrication and enhance efficacy. However, existing microneedling heads often employ an open planar structure, lacking a physical constraint mechanism for the fluid medium. Under the influence of gravity and the disturbance caused by device movement, the medication applied to the face easily flows out of the target treatment area. This not only wastes expensive skincare media but also increases operational resistance due to the drying of the contact interface, reducing the efficiency of active ingredient delivery.
[0005] Meanwhile, the human face is not an ideal flat surface; areas such as the forehead, cheekbones, and chin have complex curvature variations and skeletal undulations. Traditional microneedle modules typically rigidly fix the needles to a support, lacking adaptive buffering and adjustment structures tailored to facial contours. When a rigid array of needles acts on curved facial bones, it is often difficult to achieve uniform fit across the entire array, resulting in some microneedles remaining suspended and unable to penetrate, while the contact area can cause pain due to concentrated pressure. For devices that rely on electrode contact to form a circuit, this poor fit can also directly lead to intermittent or unstable circuit signals, severely affecting the normal operation of the device and the treatment effect. Summary of the Invention
[0006] To address the shortcomings of existing technologies, this invention provides a facial skin care contact beauty device that solves the problems of traditional microneedling treatments, such as blind operation lacking real-time feedback, waste of medication due to gravity flow, and poor contact or intermittent current caused by rigid contacts that are difficult to adapt to the curvature of the face.
[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a facial skin care contact skin beauty device, including a handheld handle, a control component provided on the top of the handheld handle, a fixed shell fixedly connected to one end of the handheld handle, a drive component provided inside the fixed shell, a connecting shell fixedly connected inside the fixed shell, unlocking components provided on both sides of the fixed shell, a docking shell slidably connected inside the connecting shell, and a visual-touch fusion microneedle system mounted in the chip inside the handheld handle;
[0008] Two connecting components are fixedly connected to the top of the docking shell, a sealing shell is fixedly connected to the bottom of the docking shell, a protective shell is slidably connected to the outer wall of the sealing shell, a conductive component is provided inside the docking shell, multiple photosensitive microneedles are slidably connected inside the sealing shell, a limiting component is provided at the bottom of the sealing shell, multiple buffer components are provided at the top of each photosensitive microneedle, and the photosensitive microneedles are arranged in a parallel array inside the sealing shell.
[0009] Preferably, the control component includes a display screen and two adjustment knobs. The display screen is mounted on the top of the hand grip and electrically connected to the inside of the hand grip. One end of each of the two adjustment knobs is rotatably connected to one side of the hand grip.
[0010] Preferably, the drive assembly includes a fixed plate and a vibration motor. The outer wall of the fixed plate is fixedly connected to the inner wall of the fixed shell, the outer wall of the vibration motor is fixedly connected to the top of the fixed plate, and the output end of the vibration motor is fixedly connected to the top of the fixed plate.
[0011] Preferably, each of the unlocking components includes an unlocking button, a push post, and a return spring. The outer wall of the unlocking button is slidably connected to one side of the fixed shell. One end of the push post is fixedly connected to the inside of the unlocking button. The return spring is disposed on the outer wall of the push post. One end of the return spring is fixedly connected to the outer wall of the hand grip, and the other end of the return spring is fixedly connected to the inner wall of the unlocking button.
[0012] Preferably, each of the connecting components includes an elastic strip and a fixing block. The bottom end of the elastic strip is fixedly connected to the inside of the docking shell, and the outer wall of the elastic strip is slidably connected to the inside of the docking shell. The bottom of the fixing block is fixedly connected to the top end of the elastic strip, and the outer wall of the fixing block is slidably connected to the inside of the docking shell.
[0013] Preferably, the conductive component includes a conductive plate, multiple conductive blocks, and two conductive pillars. The outer wall of the conductive plate is fixedly connected to the inside of the docking shell. The outer wall of each conductive block is fixedly connected to the inside of the conductive plate. One end of each conductive pillar is disposed inside the conductive plate. The conductive blocks are arranged in a parallel array inside the conductive plate. The conductive end of each photosensitive microneedle is fixedly connected to the bottom of the conductive block.
[0014] Preferably, the limiting component includes multiple vertical limiting strips and multiple bending limiting strips. The top of each vertical limiting strip is fixedly connected to the bottom of the sealing shell, and the top of each bending limiting strip is fixedly connected to the bottom of the sealing shell. The vertical limiting strips and bending limiting strips are arranged alternately, and adjacent vertical limiting strips and bending limiting strips are connected end to end. The vertical limiting strips and bending limiting strips are arranged in a symmetrical array on one side of the sealing shell.
[0015] Preferably, each of the buffer components includes an insulating block one, an insulating block two, a support spring, and a telescopic rod. The bottom end of the insulating block one is fixedly connected to the top of the photosensitive microneedle, the top end of the insulating block two is fixedly connected to the bottom of the conductive plate, the support spring is disposed between the insulating block one and the insulating block two, one end of the support spring is fixedly connected to the inside of the insulating block one, the other end of the support spring is fixedly connected to the inside of the insulating block two, and the two ends of the telescopic rod are respectively connected between the insulating block one and the insulating block two.
[0016] Preferably, the vision-touch fusion microneedle system includes:
[0017] An optical detection module, electrically connected to the photosensitive microneedle, is used to drive the photosensitive microneedle to emit a detection beam and receive light feedback signals reflected or scattered by the skin, and convert the light feedback signals into digital signals.
[0018] The central processing module, which is connected to the optical detection module and the drive component respectively, is used to receive the digital signal and analyze the skin condition using a preset algorithm, and generate corresponding motor control commands based on the analysis results.
[0019] An interactive feedback module, electrically connected to the display screen and adjustment knob, is used to visualize the skin condition and current working mode, and to receive user adjustment signals to correct the motor control commands.
[0020] An execution control module, which is connected to the vibration motor, is used to receive motor control commands and adjust the vibration frequency and output power of the vibration motor to achieve dynamic adjustment of the microneedle insertion depth and frequency.
[0021] Preferably, the central processing module is pre-installed with a skin feature recognition algorithm, which can identify the texture density, pigmentation areas and inflammatory response status of the skin based on the digital signal;
[0022] The working mode of the vision-touch fusion microneedle system includes an adaptive mode. In the adaptive mode, when a sensitive or inflamed area of skin is detected, the execution control module automatically reduces the output power of the vibration motor to reduce the microneedle insertion depth; when a thick stratum corneum or pigmented area is detected, the execution control module automatically increases the output power of the vibration motor to increase the microneedle insertion depth.
[0023] This invention provides a facial skin care contact beauty device. It has the following beneficial effects:
[0024] 1. This invention integrates optical detection function into photosensitive microneedles and constructs a stable signal transmission circuit with conductive blocks, conductive pillars and conductive plates, realizing the integration of treatment and detection. During operation, the device can acquire optical feature data of the skin surface in real time and feed it back to the display screen, assisting the operator to adjust the working parameters of the vibration motor in real time through the adjustment knob, avoiding the blindness of traditional microneedle operation and improving the accuracy and safety of skin care.
[0025] 2. This invention creates a physical barrier around the working area of the photosensitive microneedle by setting a limiting component consisting of vertical and curved limiting strips at the bottom of the sealed shell. In actual operation, this barrier structure can confine the liquid or gel applied to the face to a specific treatment area, preventing the liquid from flowing to the sides of the cheeks due to gravity or equipment movement. This not only avoids the waste of skin care medium, but also ensures that the treatment area is always moist, thereby improving the absorption efficiency of the medium.
[0026] 3. This invention, by setting a buffer assembly including a support spring and a telescopic rod between the photosensitive microneedles and the conductive plate, endows the array-type photosensitive microneedles with the ability to adapt to facial contours. When the instrument comes into contact with facial bone areas with large undulations, such as the forehead, chin, or cheekbones, the photosensitive microneedles will compress the support spring and retract along the telescopic rod after being subjected to force. This ensures that all contacts can closely fit the skin during dynamic operation, which not only ensures the stability of the microcurrent circuit and prevents current interruption caused by poor contact, but also reduces the direct pressure of hard contacts on the skin through elastic buffering. Attached Figure Description
[0027] Figure 1 This is a perspective view of the present invention;
[0028] Figure 2 This is a schematic diagram of the exploded structure of the fixed shell of the present invention;
[0029] Figure 3 for Figure 2 A magnified view of the structure at point A in the middle;
[0030] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point B in the middle;
[0031] Figure 5 This is a schematic diagram of the conductive plate structure of the present invention;
[0032] Figure 6 This is a schematic diagram of the sealing shell structure of the present invention;
[0033] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point C in the middle;
[0034] Figure 8 This is a schematic diagram of the photosensitive microneedle structure of the present invention;
[0035] Figure 9 for Figure 8 A magnified schematic diagram of the structure at point D in the middle;
[0036] Figure 10 Schematic diagram of the vision-touch fusion microneedle system.
[0037] The components include: 1. Handheld grip; 2. Display screen; 3. Adjustment knob; 4. Fixed shell; 5. Fixed plate; 6. Vibration motor; 7. Connecting shell; 8. Unlock button; 9. Push column; 10. Return spring; 11. Docking shell; 12. Elastic strip; 13. Fixed block; 14. Protective shell; 15. Sealing shell; 16. Conductive plate; 17. Conductive block; 18. Conductive column; 19. Photosensitive microneedle; 20. Vertical limiting strip; 21. Bending limiting strip; 22. Insulating block one; 23. Insulating block two; 24. Support spring; 25. Telescopic rod; 26. Optical detection module; 27. Central processing module; 28. Interactive feedback module; 29. Execution control module. Detailed Implementation
[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0039] See attached document Figure 1 -Appendix Figure 5The present invention provides a facial skin care contact beauty device, including a handheld handle 1, a control component on the top of the handheld handle 1, a fixed shell 4 fixedly connected to one end of the handheld handle 1, a drive component inside the fixed shell 4, a connecting shell 7 fixedly connected inside the fixed shell 4, unlocking components on both sides of the fixed shell 4, and a docking shell 11 slidably connected inside the connecting shell 7.
[0040] Two connecting components are fixedly connected to the top of the docking shell 11, and a sealing shell 15 is fixedly connected to the bottom of the docking shell 11. A protective shell 14 is slidably connected to the outer wall of the sealing shell 15. A conductive component is provided inside the docking shell 11. Multiple photosensitive microneedles 19 are slidably connected inside the sealing shell 15. A limiting component is provided at the bottom of the sealing shell 15. Multiple buffer components are provided at the top of each photosensitive microneedle 19. The photosensitive microneedles 19 are arranged in a parallel array inside the sealing shell 15.
[0041] The control component includes a display screen 2 and two adjustment knobs 3. The display screen 2 is mounted on the top of the handgrip 1 and electrically connected to the inside of the handgrip 1. One end of each adjustment knob 3 is rotatably connected to one side of the handgrip 1. The drive component includes a fixed plate 5 and a vibration motor 6. The outer wall of the fixed plate 5 is fixedly connected to the inner wall of the fixed shell 4. The outer wall of the vibration motor 6 is fixedly connected to the top of the fixed plate 5. The output end of the vibration motor 6 is fixedly connected to the top of the fixed plate 5. The conductive component includes a conductive plate 16, multiple conductive blocks 17 and two conductive pillars 18. The outer wall of the conductive plate 16 is fixedly connected to the inside of the docking shell 11. The outer wall of each conductive block 17 is fixedly connected to the inside of the conductive plate 16. One end of each conductive pillar 18 is located inside the conductive plate 16. The conductive blocks 17 are arranged in a parallel array inside the conductive plate 16. The conductive end of each photosensitive microneedle 19 is fixedly connected to the bottom of the conductive block 17.
[0042] Each unlocking component includes an unlocking button 8, a push post 9, and a return spring 10. The outer wall of the unlocking button 8 is slidably connected to one side of the fixed shell 4. One end of the push post 9 is fixedly connected to the inside of the unlocking button 8. The return spring 10 is disposed on the outer wall of the push post 9. One end of the return spring 10 is fixedly connected to the outer wall of the hand grip 1, and the other end of the return spring 10 is fixedly connected to the inner wall of the unlocking button 8. Each connecting component includes an elastic strip 12 and a fixing block 13. The bottom end of the elastic strip 12 is fixedly connected to the inside of the docking shell 11, and the outer wall of the elastic strip 12 is slidably connected to the inside of the docking shell 11. The bottom of the fixing block 13 is fixedly connected to the top end of the elastic strip 12, and the outer wall of the fixing block 13 is slidably connected to the inside of the docking shell 11.
[0043] Specifically, if a functional module needs to be replaced for a specific nursing need, the operator only needs to apply an inward pushing force to the unlock button 8 located on the side of the machine body, which directly drives the push column 9 to move, forcing the internal fixing block 13 to overcome the resistance and retract inward synchronously, thereby instantly releasing the mechanical interlock between the docking shell 11 and the main body; then, the operator firmly holds the two outer walls of the sealing shell 15 and pulls it down, so that the docking shell 11 can smoothly slide out of the inner cavity guide rail of the connecting shell 7, quickly completing the disassembly of the old component. At this time, the new nursing module can be installed in place to achieve seamless switching between different nursing functions.
[0044] See attached document Figure 6 and attached Figure 7 The limiting component includes multiple vertical limiting strips 20 and multiple bending limiting strips 21. The top of each vertical limiting strip 20 is fixedly connected to the bottom of the sealing shell 15, and the top of each bending limiting strip 21 is fixedly connected to the bottom of the sealing shell 15. The vertical limiting strips 20 and bending limiting strips 21 are arranged alternately, and adjacent vertical limiting strips 20 and bending limiting strips 21 are connected end to end. The vertical limiting strips 20 are arranged in a symmetrical array on one side of the sealing shell 15, and the bending limiting strips 21 are arranged in a symmetrical array on one side of the sealing shell 15.
[0045] Specifically, during the formal use of the equipment, the operator first needs to evenly apply the functional medicine to the customer's facial epidermis, then start the instrument and align and attach the photosensitive microneedles 19 to the area to be treated; during this period, the vertical limiting strips 20 and the curved limiting strips 21 on the periphery work together to create a relatively closed retention space. This physical barrier can confine the fluid medicine within the core treatment area, blocking the path of the medicine spreading outward due to gravity or uneven application, thereby avoiding the waste caused by the medicine dripping down the contours of the cheek.
[0046] See attached document Figure 8 and attached Figure 9 Each buffer assembly includes an insulating block 1 22, an insulating block 23, a support spring 24, and a telescopic rod 25. The bottom end of the insulating block 1 22 is fixedly connected to the top of the photosensitive microneedle 19, and the top end of the insulating block 23 is fixedly connected to the bottom of the conductive plate 16. The support spring 24 is disposed between the insulating block 1 22 and the insulating block 23. One end of the support spring 24 is fixedly connected to the inside of the insulating block 1 22, and the other end of the support spring 24 is fixedly connected to the inside of the insulating block 23. The two ends of the telescopic rod 25 are connected between the insulating block 1 22 and the insulating block 23.
[0047] Specifically, during actual operation of the device, when the probe moves to facial areas with complex curvatures such as the forehead, chin, or nose, the hard subcutaneous bone tissue (such as the cheekbone and brow bone) will exert different intensities of reaction force on the photosensitive microneedles 19 that come into contact with it. Driven by this pressure, the support springs 24 at the top of each photosensitive microneedle 19 will then undergo corresponding elastic contraction and deformation, causing the originally flat contact array to be passively reconstructed into a flexible arc that highly matches the facial contour, thereby ensuring that all contacts can still closely adhere to the skin surface under dynamic operation and maintain the continuous and stable conduction of the current circuit.
[0048] See attached document Figure 10 The vision-touch fusion microneedle system includes:
[0049] The optical detection module 26 is electrically connected to the photosensitive microneedle 19 and is used to drive the photosensitive microneedle 19 to emit a detection beam and receive light feedback signals reflected or scattered by the skin, and convert the light feedback signals into digital signals.
[0050] The central processing module 27 is connected to the optical detection module 26 and the drive component respectively. It is used to receive digital signals and analyze the skin condition using a preset algorithm, and generate corresponding motor control commands based on the analysis results.
[0051] The interactive feedback module 28, which is electrically connected to the display screen 2 and the adjustment knob 3, is used to visualize the skin condition and the current working mode, and to receive the user's adjustment signals to correct the motor control commands;
[0052] The execution control module 29 is connected to the vibration motor 6 and is used to receive motor control commands and adjust the vibration frequency and output power of the vibration motor 6 to achieve dynamic adjustment of the microneedle insertion depth and frequency.
[0053] The central processing module 27 is pre-installed with a skin feature recognition algorithm, which can identify the texture density, pigmentation areas and inflammatory response status of the skin based on digital signals;
[0054] The working modes of the visual-touch fusion microneedle system include an adaptive mode. In the adaptive mode: when a sensitive or inflamed area of skin is detected, the execution control module 29 automatically reduces the output power of the vibration motor 6 to reduce the microneedle insertion depth; when a thicker stratum corneum or pigmented area is detected, the execution control module 29 automatically increases the output power of the vibration motor 6 to increase the microneedle insertion depth.
[0055] Specifically, this invention provides a facial skin care contact beauty device, in which a visual-touch fusion microneedle system is integrated into a chip within the handheld handle 1. This visual-touch fusion microneedle system is configured to execute a closed-loop control strategy, dynamically adjusting the device's operating parameters by collecting skin data in real time. The visual-touch fusion microneedle system mainly includes an optical detection module 26, a central processing module 27, an interactive feedback module 28, and an execution control module 29.
[0056] Specifically, each of the above functional modules corresponds to a computer program instruction stored in the chip's internal memory (such as Flash or EEPROM). When the microprocessor (MCU) or digital signal processor (DSP) inside the chip executes the program instruction, it implements the corresponding logic control function.
[0057] The optical detection module 26 is electrically connected to multiple photosensitive microneedles 19 located inside the sealed housing 15. During device operation, the optical detection module 26 sends a drive signal to the photosensitive microneedles 19, controlling them to emit a detection beam of a specific wavelength (e.g., green or yellow light with a wavelength of 500nm-600nm, used for targeted identification of hemoglobin or melanin) onto the skin surface in contact with the device. After the detection beam penetrates the skin tissue, it undergoes diffuse reflection or scattering, and the optical detection module 26 receives the returned light feedback signal through the photosensitive microneedles 19. The optical detection module 26 is internally equipped with a photoelectric conversion circuit and an analog-to-digital conversion circuit, which convert the acquired analog light feedback signal into a digital signal and transmits the digital signal to the central processing module 27.
[0058] To achieve optical signal transmission at the microneedle tip, the photosensitive microneedle 19 employs a composite structure of inner core and outer shell or an optical waveguide structure. In this embodiment, the main body of the photosensitive microneedle 19 is injection molded from a transparent medical-grade polymer material (such as PMMA or polycarbonate) to form an optical waveguide path. Its surface is coated with a conductive metal layer (such as gold or titanium plating) via magnetron sputtering to achieve electrical conductivity, with a light-transmitting window reserved only at the tip. The light-emitting diodes (LEDs) and photodiodes (PDs) inside the optical detection module 26 are directly aligned with the bottom of the photosensitive microneedle 19 via fiber optic coupling or a lens array, thereby enabling the emission and transmission of the light beam.
[0059] The central processing module 27 is the core computing unit of the system. Its input is connected to the optical detection module 26, and its output is connected to the interactive feedback module 28 and the execution control module 29, respectively. The central processing module 27 integrates a signal preprocessing unit and an adaptive PID controller. It receives digital signals from the optical detection module 26 and uses a preset skin feature index calculation model to solve the data.
[0060] Since the photosensitive microneedle 19 is in a high-frequency reciprocating motion state, in order to eliminate invalid light signal interference during the period when the needle leaves the skin, the central processing module 27 executes a synchronous sampling strategy. The central processing module 27 identifies the motion cycle of the photosensitive microneedle 19 by monitoring the phase of the drive voltage of the vibration motor 6 or by using the commutation waveform of the motor current. It only extracts the light feedback signal for calculation within a preset time window (e.g., 30% of the cycle) before and after the photosensitive microneedle 19 is at the peak of its extension stroke (i.e., the moment when the needle tip penetrates the skin to its deepest point). The signal at other times is filtered out by software.
[0061] In this embodiment, the central processing module 27 calculates the feature parameters of the current skin according to the following formula. :
[0062] ;
[0063] in, This indicates the standard initial intensity of the probe beam emitted by the optical detection module 26; This indicates the intensity of the real-time optical feedback signal received after reflection or scattering through the skin; This represents the constant of the medium absorption coefficient, which is related to the wavelength of the probe beam and the optical properties of the skin target chromophore (such as melanin or heme); The standard deviation of the light feedback signal intensity within the sampling period is used to characterize the texture roughness of the skin surface. This represents the average value of the optical feedback signal intensity within the sampling period; This represents the texture weight coefficient, used to balance the proportion of pigment features and texture features in the overall score calculation.
[0064] The central processing module 27 will calculate in real time Compared with the preset standard skin reference value Compare and generate error signals. The error signal is then sent to the control loop of the execution control module 29.
[0065] The interactive feedback module 28 is electrically connected to the display screen 2 mounted on the top of the handgrip 1 and the adjustment knob 3 located on the side. The interactive feedback module 28, on the one hand, uses skin condition data (such as sensitivity or roughness) output from the central processing module 27 to drive the display screen 2 for visual display; on the other hand, it monitors the potential changes of the adjustment knob 3 in real time, converting the manual adjustment signal input by the operator into a reference duty cycle. Feedback is sent to the central processing module 27 and the execution control module 29, allowing the operator to set a basic intensity level. Furthermore, the interactive feedback module 28 is configured to monitor specific operations of the adjustment knob 3 (such as long press or double click) to switch between a manual fixed-level mode and a visual-touch fusion adaptive mode.
[0066] The execution control module 29 is electrically connected to the vibration motor 6 in the drive assembly. The execution control module 29 receives instructions from the central processing module 27 and uses an incremental PID control algorithm to adjust the drive parameters of the vibration motor 6. The execution control module 29 outputs the duty cycle of the pulse width modulation (PWM) signal to the vibration motor 6. Dynamic adjustments are made based on the following formula:
[0067] ;
[0068] in, This indicates the reference duty cycle corresponding to the base gear position determined by adjustment knob 3; Represents the current reference value Compared with measured skin feature parameters deviation (i.e. This ensures that the polarity of the deviation signal is consistent with the direction of power adjustment; and These represent the deviation values between the previous sampling time and the two previous sampling times, respectively; , , These represent the proportional coefficient, integral coefficient, and differential coefficient, respectively.
[0069] Through the above control logic, when inflammatory response characteristics or a thin stratum corneum are detected in a skin area (manifested as...), Anomalies or texture standard deviation When the value is relatively small, the calculated value is... The control module 29 reduces the driving power supplied to the vibration motor 6, thereby reducing the insertion depth and vibration frequency of the photosensitive microneedles 19 to achieve flexible treatment; conversely, when a thicker stratum corneum or deeper pigmentation is detected, The control module 29 is increased to enhance the driving power and increase the insertion depth of the photosensitive microneedles 19 to enhance the transdermal effect and achieve deep treatment.
[0070] In addition, to ensure user safety, a maximum duty cycle threshold is set within the execution control module 29. (For example, 80%). When the calculated... Exceed At that time, the execution control module 29 forcibly locks the output at... This prevents damage to the skin caused by excessively high calculated power due to abnormal pigmentation (such as moles).
[0071] Working Principle: In the process of using this facial skin care contact beauty device, the system is operated by the user through a handheld handle 1. An internal vibration motor 6 causes the photosensitive microneedles 19 at the front end to generate high-frequency reciprocating motion to penetrate the stratum corneum for treatment. During this process, the photosensitive microneedles 19 collect real-time optical characteristic data of the skin, transmitting signals through an electrical circuit composed of a conductive block 17, a conductive column 18, and a conductive plate 16. After processing, the skin condition is fed back to the display screen 2 in real time for the user's reference, and the working parameters can be precisely adjusted using the adjustment knob 3. Simultaneously, the device achieves a stable connection of the treatment head through a docking shell 11, an elastic strip 12, and a fixing block 13, and allows for quick disassembly via an unlocking button 8. Vertical limiting strips 20 and bending limiting strips 21 further limit the needle trajectory, ensuring the accuracy, safety, and convenience of operation.
[0072] During the use of the device, the liquid medicine needs to be applied to the customer's face first, and then the device is turned on to place the light-sensing microneedle 19 in the corresponding position. During this period, the area formed by the vertical limiting strip 20 and the bending limiting strip 21 restricts the liquid medicine in this area, thereby preventing the liquid medicine from flowing down the cheek and being wasted.
[0073] During device use, when it is necessary to treat curved areas such as the forehead or chin, the facial bones (such as the cheekbones and forehead) will exert a reaction force on the photosensitive microneedles 19, causing the top support spring 24 to compress. This causes all the photosensitive microneedles 19 to form an arc to adapt to different degrees of curvature, thereby ensuring that all the photosensitive microneedles 19 always adhere to the skin and keep the current circuit open.
Claims
1. A facial skin care contact beauty device, characterized in that, The device includes a handgrip (1), a control component is provided on the top of the handgrip (1), a fixed shell (4) is fixedly connected to one end of the handgrip (1), a drive component is provided inside the fixed shell (4), a connecting shell (7) is fixedly connected inside the fixed shell (4), an unlocking component is provided on both sides of the fixed shell (4), a docking shell (11) is slidably connected inside the connecting shell (7), and a vision-touch fusion microneedle system is mounted in the chip inside the handgrip (1). The docking shell (11) has two connecting components fixedly connected to its top, and a sealing shell (15) fixedly connected to its bottom. A protective shell (14) is slidably connected to the outer wall of the sealing shell (15). A conductive component is provided inside the docking shell (11). Multiple photosensitive microneedles (19) are slidably connected inside the sealing shell (15). A limiting component is provided at the bottom of the sealing shell (15). Multiple buffer components are provided at the top of each photosensitive microneedle (19). The photosensitive microneedles (19) are arranged in a parallel array inside the sealing shell (15).
2. The facial skin care contact beauty device according to claim 1, characterized in that, The control component includes a display screen (2) and two adjustment knobs (3). The display screen (2) is mounted on the top of the hand grip (1) and electrically connected to the inside of the hand grip (1). One end of each of the two adjustment knobs (3) is rotatably connected to one side of the hand grip (1).
3. The facial skin care contact beauty device according to claim 1, characterized in that, The drive assembly includes a fixed plate (5) and a vibration motor (6). The outer wall of the fixed plate (5) is fixedly connected to the inner wall of the fixed shell (4), the outer wall of the vibration motor (6) is fixedly connected to the top of the fixed plate (5), and the output end of the vibration motor (6) is fixedly connected to the top of the fixed plate (5).
4. The facial skin care contact beauty device according to claim 1, characterized in that, Each of the unlocking components includes an unlocking button (8), a push post (9), and a return spring (10). The outer wall of the unlocking button (8) is slidably connected to one side of the fixed shell (4). One end of the push post (9) is fixedly connected to the inside of the unlocking button (8). The return spring (10) is disposed on the outer wall of the push post (9). One end of the return spring (10) is fixedly connected to the outer wall of the hand grip (1), and the other end of the return spring (10) is fixedly connected to the inner wall of the unlocking button (8).
5. The facial skin care contact beauty device according to claim 1, characterized in that, Each of the connecting components includes an elastic strip (12) and a fixing block (13). The bottom end of the elastic strip (12) is fixedly connected to the inside of the docking shell (11), and the outer wall of the elastic strip (12) is slidably connected to the inside of the docking shell (11). The bottom of the fixing block (13) is fixedly connected to the top end of the elastic strip (12), and the outer wall of the fixing block (13) is slidably connected to the inside of the docking shell (11).
6. The facial skin care contact beauty device according to claim 1, characterized in that, The conductive component includes a conductive plate (16), multiple conductive blocks (17) and two conductive pillars (18). The outer wall of the conductive plate (16) is fixedly connected to the inside of the docking shell (11). The outer wall of each conductive block (17) is fixedly connected to the inside of the conductive plate (16). One end of each conductive pillar (18) is disposed inside the conductive plate (16). The conductive blocks (17) are arranged in a parallel array inside the conductive plate (16). The conductive end of each photosensitive microneedle (19) is fixedly connected to the bottom of the conductive block (17).
7. The facial skin care contact beauty device according to claim 1, characterized in that, The limiting component includes multiple vertical limiting strips (20) and multiple bending limiting strips (21). The top of each vertical limiting strip (20) is fixedly connected to the bottom of the sealing shell (15), and the top of each bending limiting strip (21) is fixedly connected to the bottom of the sealing shell (15). The vertical limiting strips (20) and bending limiting strips (21) are alternately arranged, and adjacent vertical limiting strips (20) and bending limiting strips (21) are connected end to end. The vertical limiting strips (20) are arranged in a symmetrical array on one side of the sealing shell (15), and the bending limiting strips (21) are arranged in a symmetrical array on one side of the sealing shell (15).
8. The facial skin care contact beauty device according to claim 1, characterized in that, Each of the aforementioned buffer components includes an insulating block one (22), an insulating block two (23), a support spring (24), and a telescopic rod (25). The bottom end of the insulating block one (22) is fixedly connected to the top of the photosensitive microneedle (19), and the top end of the insulating block two (23) is fixedly connected to the bottom of the conductive plate (16). The support spring (24) is disposed between the insulating block one (22) and the insulating block two (23). One end of the support spring (24) is fixedly connected inside the insulating block one (22), and the other end of the support spring (24) is fixedly connected inside the insulating block two (23). The two ends of the telescopic rod (25) are respectively connected between the insulating block one (22) and the insulating block two (23).
9. A facial skin care contact beauty device according to claim 1, characterized in that, The vision-touch fusion microneedle system includes: An optical detection module (26) is electrically connected to the photosensitive microneedle (19) and is used to drive the photosensitive microneedle (19) to emit a detection beam and receive light feedback signals reflected or scattered by the skin, and convert the light feedback signals into digital signals. The central processing module (27) is connected to the optical detection module (26) and the drive component respectively, and is used to receive the digital signal and analyze the skin condition using a preset algorithm, and generate corresponding motor control commands based on the analysis results; An interactive feedback module (28), which is electrically connected to a display screen (2) and an adjustment knob (3), is used to visualize the skin condition and current working mode, and to receive adjustment signals from the user to correct the motor control commands; The execution control module (29) is connected to the vibration motor (6) and is used to receive the motor control command and adjust the vibration frequency and output power of the vibration motor (6) to realize the dynamic adjustment of the microneedle insertion depth and frequency.
10. A facial skin care contact beauty device according to claim 9, characterized in that, The central processing module (27) is pre-installed with a skin feature recognition algorithm, which can identify the texture density, pigmentation area and inflammatory response status of the skin based on the digital signal; The working modes of the vision-touch fusion microneedle system include an adaptive mode. In the adaptive mode, when a sensitive or inflamed area of skin is detected, the execution control module (29) automatically reduces the output power of the vibration motor (6) to reduce the microneedle insertion depth; when a thick stratum corneum or pigmented area is detected, the execution control module (29) automatically increases the output power of the vibration motor (6) to increase the microneedle insertion depth.