Treatment head and treatment instrument
By using light-emitting elements and optical sensors in the treatment head to detect skin adhesion, the problem of inaccurate adhesion detection due to environmental factors in existing technologies is solved, enabling real-time adjustment and stable treatment results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, the detection of the fit between the treatment head and the skin is affected by environmental factors, resulting in inaccurate detection and difficulty in distinguishing between non-fitting treatment head and other malfunctions, thus affecting the treatment effect.
The device uses a light-emitting element to detect the fit between the treatment head and the skin. It judges the fit by observing whether light leaks. Combined with optical sensors and pressure sensors, it adjusts the fit in real time to reduce interference from environmental factors.
It improves the accuracy of the treatment head-skin fit detection, simplifies the operation process, and ensures the consistency and safety of treatment results.
Smart Images
Figure CN224070988U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of medical devices, and more specifically, to a treatment head and treatment device. Background Technology
[0002] Ultrasound is a high-frequency mechanical wave with tissue penetrating and energy deposition properties. In the field of ultrasound therapy, ultrasound waves can be generated using ultrasound transducers. Ultrasound propagation requires a medium, and the acoustic properties of the medium directly affect the effectiveness of the ultrasound.
[0003] When ultrasound propagates and encounters a medium interface, reflection and refraction occur. To reduce reflection and allow more ultrasound energy to enter the human body, the acoustic impedance of the medium on both sides of the interface between the treatment head and the human skin should be as close as possible. This is achieved by applying a coupling agent between the treatment head and the human skin for acoustic matching; and by ensuring the treatment head is in close contact with the skin during operation to eliminate air gaps between the treatment head and the skin surface.
[0004] Existing technologies propose two methods to address the adhesion problem: one uses a thin-film sensor to detect pressure, but thin-film sensors have low sensitivity, are greatly affected by temperature, and are prone to fatigue and aging during long-term use; the other uses an illuminance sensor to determine adhesion by detecting the difference in illuminance inside and outside the treatment head, but this method is highly affected by ambient illuminance, and excessively strong or weak light may exceed the sensor's measurement capabilities, affecting the judgment. Both of these techniques are susceptible to environmental interference in adhesion detection, leading to inaccurate detection and affecting treatment effectiveness. Furthermore, neither solution is intuitive enough; when a condition is determined to be "not in place," it is difficult to distinguish whether the treatment head is not in place or if other malfunctions have occurred. Utility Model Content
[0005] This application provides a treatment head and a treatment device that improves the accuracy of the fit detection between the treatment head and the treatment area, and is simple to operate, allowing for real-time adjustments to ensure treatment effectiveness.
[0006] The treatment head provided in this application adopts the following technical solution:
[0007] In a first aspect, this application provides a treatment head, which adopts the following technical solution:
[0008] A treatment head, comprising:
[0009] The main body is provided with a treatment end for contact with the skin, and the treatment end is provided with a treatment window;
[0010] A light-emitting element is disposed within the body and is used to emit light outward from the treatment window; or, the light-emitting element is disposed at the treatment end and is used to emit light in a direction away from the treatment end; the light-emitting element is used to detect whether the treatment end and the skin are well fitted, and when the treatment end and the skin are well fitted, the light emitted by the light-emitting element does not leak.
[0011] Optionally, the body includes an inner shell that encloses a receiving cavity, and the light-emitting element is disposed within the receiving cavity.
[0012] Optionally, the body further includes an ultrasonic transducer for generating ultrasonic waves, the ultrasonic transducer being disposed within the receiving cavity and located on the central axis of the inner shell; the light-emitting element is disposed in the central region of the ultrasonic transducer.
[0013] Optionally, the body further includes an ultrasonic transducer for generating ultrasonic waves, the ultrasonic transducer being disposed within the receiving cavity; a plurality of light-emitting elements are provided, and the plurality of light-emitting elements are arranged around the ultrasonic transducer.
[0014] Optionally, the body includes an inner shell and an outer shell, the outer shell covering the outside of the inner shell, and the outer shell having a mounting groove near the treatment end, the mounting groove being located on one side of the treatment window for mounting and accommodating the light-emitting element.
[0015] Optionally, multiple light-emitting elements are provided, and the multiple light-emitting elements are arranged around the treatment window.
[0016] Optionally, the treatment head further includes a light guide, which is arranged around the treatment end. The light guide is used to conduct the light leaked by the light-emitting element to the periphery of the treatment end when the treatment end does not fit well with the skin.
[0017] Optionally, it further includes a first optical sensor and a main control unit. The first optical sensor is disposed on the body and is electrically connected to the light-emitting element and the main control unit. It is used to measure the distance between the treatment end and the skin. The main control unit determines the degree of fit between the two based on the distance between the treatment end and the skin.
[0018] Optionally, it further includes a second optical sensor and a main control unit. The second optical sensor is disposed on the treatment end and electrically connected to the main control unit for measuring the intensity of reflected light. The main control unit determines the degree of adhesion between the treatment end and the skin based on the intensity of reflected light detected by the second optical sensor.
[0019] And / or, the treatment head further includes a pressure sensor and a main control unit. The pressure sensor is disposed on the treatment end and is electrically connected to the main control unit for detecting the pressure value applied by the treatment end to the skin. The main control unit determines the degree of fit between the treatment end and the skin based on the pressure value detected by the pressure sensor.
[0020] Optionally, the treatment head further includes an ambient light sensor and a main control unit. The ambient light sensor is electrically connected to the light-emitting element and the main control unit, and is used to measure the light intensity of the ambient light. The main control unit adjusts the light source intensity of the light-emitting element according to the light intensity detected by the ambient light sensor.
[0021] Secondly, this application provides a therapeutic device, which adopts the following technical solution:
[0022] A therapeutic device comprising a treatment head as described above.
[0023] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:
[0024] The light emitted by the luminescent component propagates through the air gap between the treatment head and the skin. When the treatment end of the head contacts the skin, and the two sides are in good contact, the light is blocked by the skin and cannot pass through, making it invisible from the outside. However, if a gap exists between the treatment end and the skin, the skin cannot completely block the light, allowing it to pass through. This indicates insufficient contact between the treatment end and the skin. During the procedure, the doctor only needs to observe the light state between the treatment end and the skin to judge the degree of contact, avoiding differences in treatment effectiveness due to lack of experience or different techniques, thus simplifying the procedure. Furthermore, because the luminescence state of the luminescent component is less affected by environmental factors, the accuracy of contact detection is improved. By observing the light state, the doctor can adjust the contact in a timely manner to ensure that the treatment end remains in good contact with the skin throughout the treatment process, thus ensuring the best treatment effect. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.
[0026] Figure 1 This is a cross-sectional view of the structure of a treatment head disclosed in Embodiment 1 of this application;
[0027] Figure 2 This is a cross-sectional view of the structure of a treatment head disclosed in Embodiment 2 of this application;
[0028] Figure 3 This is a schematic diagram of the structure of the light-emitting element in Embodiment 2 of this application.
[0029] Explanation of reference numerals in the attached figures:
[0030] 1. Body; 11. Treatment end; 111. Treatment window; 12. Connection end; 13. Inner shell; 131. Receiving chamber; 14. Outer shell; 141. Mounting slot; 15. Ultrasonic transducer; 2. Light-emitting component. Detailed Implementation
[0031] The present application will be further described in detail below with reference to the accompanying drawings.
[0032] This application provides a treatment head and a treatment device that improves the accuracy of the fit detection between the treatment head and the treatment area. It is simple to operate and can be adjusted in real time to ensure the treatment effect. It is applicable to fields such as ultrasound therapy, radiofrequency therapy and laser therapy.
[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.
[0034] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0035] This application discloses a treatment head applicable to fields such as ultrasound therapy, radiofrequency therapy, and laser therapy. This application uses an ultrasound treatment head as an example for illustration. In the field of ultrasound therapy, the ultrasound treatment head utilizes an ultrasound transducer to generate ultrasound waves. The ultrasound energy produces a thermal effect in subcutaneous tissue, causing collagen fibers to denature and contract, thereby immediately improving the firming effect. Simultaneously, the thermal damage activates the skin's self-repair mechanism, promoting the generation of new collagen and elastic fibers, further improving skin laxity and wrinkles, thus achieving the therapeutic effect.
[0036] Please see Figure 1 and Figure 2 The treatment head includes a body 1 and a light-emitting element 2. The light-emitting element 2 is used to emit light, which can be visible light, such as colored light, white light, monochromatic light, or polychromatic light. The light-emitting element 2 generally uses an LED lamp, which is very suitable for embedding in compact medical devices due to its small size, low power consumption, and controllable brightness.
[0037] The main body 1 is provided with a treatment end 11 and a connecting end 12. The treatment end 11 is used to contact the skin, and the connecting end 12 is used to detachably connect to the handle. The connection between the treatment head and the handle facilitates operation. In other embodiments, the connecting end 12 and the handle can also be fixedly connected. The treatment end 11 is provided with a treatment window 111, and a light-emitting element 2 is disposed inside the main body 1 for emitting light outward from the treatment window 111; or, the light-emitting element 2 is disposed on the treatment end 11 for emitting light in a direction away from the treatment end 11. The light-emitting element is used to detect whether the treatment end and the skin are in good contact. When the treatment end 11 is in good contact with the skin, the light emitted by the light-emitting element 2 does not leak. Understandably, the light emitted by the light-emitting element 2 propagates through the air gap between the treatment head and the skin. When the treatment end 11 of the treatment head contacts the skin, if the treatment end 11 fits well with the skin, the light is blocked by the skin and cannot pass through, thus making the light invisible from the outside. If there is a gap between the treatment end 11 and the skin, the skin cannot completely block the light, and the light passes through the gap, indicating to the doctor that the fit between the treatment end 11 and the skin is insufficient. During the operation, the doctor only needs to observe the light state between the treatment end 11 and the skin to judge the fit between the treatment end 11 and the skin, avoiding differences in treatment effect due to insufficient experience or different techniques, and simplifying the operation process. On the other hand, since the light emission state of the light-emitting element 2 is less affected by environmental factors, the accuracy of fit detection is improved. By observing the light state, the fit can be adjusted in time to ensure that the treatment end 11 always fits well with the skin during the treatment process, ensuring the treatment effect.
[0038] Specifically, the main body 1 includes an inner shell 13, an outer shell 14, and an ultrasonic transducer 15. The outer shell 14 covers the outside of the inner shell 13, and the inner shell 13 encloses a receiving chamber 131. The ultrasonic transducer 15 is disposed within the receiving chamber 131 and is used to generate ultrasonic waves. The ultrasonic waves generated by the ultrasonic transducer 15 pass through the treatment window 111 to reach the treatment area. In this embodiment, the ultrasonic transducer 15 is located on the central axis of the inner shell 13. During treatment, this ensures that the energy of the ultrasonic waves can act more directly and uniformly on the treatment area, which helps to improve energy concentration and reduce effective energy loss caused by unnecessary diffusion. At the same time, the dose distribution is optimized, and the generated ultrasonic field exhibits good circular radiation characteristics. Furthermore, the intensity change pattern with distance is easier to predict and control, thereby improving the consistency and safety of the treatment effect.
[0039] The receiving chamber 131 contains a sound-conducting medium, which acts as a bridge for ultrasonic waves to propagate from the ultrasonic transducer 15 to the target medium (such as human tissue, liquid, or solid). The ultrasonic transducer 15 converts electrical signals into mechanical vibrations through the piezoelectric effect. These vibrations need to pass through the sound-conducting medium to effectively propagate to the target area. Simultaneously, by optimizing the acoustic impedance, the sound-conducting medium can minimize sound wave reflection and improve sound wave transmission efficiency. By selecting a suitable sound-conducting medium, the sound field distribution can be optimized, allowing the ultrasonic waves to form a more uniform and concentrated sound field in the treatment area, thereby improving the treatment effect. Furthermore, during ultrasonic treatment, the ultrasonic transducer 15 continuously generates heat. The sound-conducting medium can also exchange heat generated by the ultrasonic transducer 15, thereby assisting in heat dissipation and achieving a cooling effect. Cooling the ultrasonic transducer 15 prevents thermal damage to the treatment area caused by excessive temperature of the ultrasonic treatment head, improving the safety of using the ultrasonic treatment head.
[0040] Please see Figure 1In some embodiments, the light-emitting element 2 is disposed within the receiving chamber 131. The light emitted by the light-emitting element 2 passes through the sound-conducting medium and is then emitted outward from the treatment window 111. When the treatment head is close to the treatment area, and the treatment end 11 is tightly attached to the skin surface, most of the light emitted by the light-emitting element 2 is absorbed or reflected back into the receiving chamber 131 because the skin blocks the treatment window 111, and almost no light leaks between the treatment window 111 and the treatment area. When the treatment end 11 is not completely attached to the skin surface, there is a gap between the treatment window 111 and the treatment area, and a certain amount of light will propagate outward through the air layer through the treatment window. By observing whether light leaks, i.e., visual signals, the degree of contact between the treatment end 11 and the treatment area is judged, and the correct usage posture and position are immediately informed to the user, reducing the risk of misoperation and improving the user experience. At the same time, ensuring that the conditions for each use are as consistent as possible reduces the impact of differences caused by human factors on the final treatment result and enhances the consistency of efficacy.
[0041] Optionally, the light-emitting element 2 is disposed in the central region of the ultrasonic transducer 15. Specifically, the central region of the ultrasonic transducer 15 is provided with a receiving groove, and the light-emitting element 2 is located in the receiving groove and fixedly disposed in the ultrasonic transducer 15. Placing the light-emitting element 2 in the central region of the ultrasonic transducer 15 can, on the one hand, avoid the ultrasonic transducer 15 from blocking the light path, minimize the transmission path length from the light source to the target object, reduce unnecessary attenuation loss, and concentrate the light within a specific range, reducing the problem of local over-brightness or dark areas caused by the deviation of the light source position, thereby reducing the error in visual observation of the light; on the other hand, a central placement usually means a simpler mechanical assembly process, eliminating the need for complex ring brackets or other special fixing devices, reducing manufacturing costs and technical difficulty.
[0042] Optionally, multiple light-emitting elements 2 are provided, and these multiple light-emitting elements 2 are arranged around the ultrasonic transducer 15. The light-emitting elements 2 are fixedly installed on the inner wall of the inner shell 13. By arranging multiple light-emitting elements 2 around the circumference of the ultrasonic transducer 15 to form a complete annular light source band, this layout can provide a wider and more uniform illumination coverage because it can project a combination of parallel beams or multi-point scattering light wavelengths from different angles. This can achieve a more comprehensive, blind-spot-free lighting effect, ensuring that the entire detection area receives sufficient light intensity. When visually observing to determine the fit between the treatment head and the treatment area, this further improves the accuracy of fit detection.
[0043] Please see Figure 2 and Figure 3In other embodiments, the light-emitting element 2 is disposed on the treatment end 11, and the light emitted by the light-emitting element 2 propagates directly outward through the air layer. Specifically, the housing 14 is provided with a mounting groove 141 near the treatment end 11. The mounting groove 141 is located on one side of the treatment window 111 and is used to install and accommodate the light-emitting element 2, which is fixedly disposed on the housing 14. Furthermore, multiple light-emitting elements 2 are provided, and the multiple light-emitting elements 2 are arranged around the treatment window 111 to provide a wider and more uniform lighting environment. Understandably, when the treatment head is close to the treatment area, the skin will block the light-emitting element 2 located on the treatment end 11. When the treatment end 11 is tightly attached to the skin surface, the light will be evenly blocked, and almost no light will leak from between the treatment end 11 and the treatment area. When the treatment end 11 is not completely attached to the skin surface, there is a gap between the treatment end 11 and the treatment area, and the light-emitting element 2 is not completely blocked by the skin. A certain amount of light will pass through the air layer in the unblocked part, and the light will leak out to form irregular light and shadow. During the operation, the doctor only needs to observe the light state between the treatment end 11 and the skin, so as to adjust the fit between the treatment end 11 and the treatment area in a timely manner to ensure that the treatment end 11 is always in good contact with the skin during the treatment process and to ensure the treatment effect.
[0044] To facilitate observation of light leakage from any viewing position during the procedure, the treatment head also includes a light guide. This light guide is circumferentially positioned around the treatment end 11. When the treatment end 11 does not adhere well to the skin, the light leaking from the luminescent element 2 is directed to the surrounding area of the treatment end. If a gap exists between the treatment end 11 and the treatment area, and the luminescent element 2 is not completely blocked by the skin, a certain amount of light will leak from the gap. This leaked light is then circumferentially guided by the light guide to travel 360° around the entire treatment end. Due to optical effects such as scattering and refraction, the light leaks out to the surrounding area. Even if the leaking area is on the back of the treatment head, the light leak can still be observed from any viewing position due to the obstruction of the treatment head itself, allowing the doctor to determine whether the treatment end 11 is properly attached to the skin and adjust the treatment end 11 accordingly.
[0045] In some embodiments, to adapt to various treatment environments, the treatment head further includes an ambient light sensor and a main control unit. The ambient light sensor is electrically connected to the light-emitting element 2 and the main control unit, and is used to measure the light intensity of the ambient light. The main control unit adjusts the light source intensity of the light-emitting element 2 according to the light intensity detected by the ambient light sensor. It is understood that the ambient light sensor monitors the treatment environment and other relevant parameters in real time and sends them to the main control unit. The main control unit determines whether the current lighting conditions meet the expected target based on preset target parameters. If the detected value deviates from the ideal range, the drive current or other factors affecting luminous efficiency are adjusted accordingly to adjust the output energy of the light-emitting element 2, ensuring that the optimal irradiation intensity and quality level are maintained throughout the treatment.
[0046] To provide multi-dimensional fit assessment and improve the accuracy of fit detection between the treatment head 1 and the treatment area, the treatment head also includes a first optical sensor and a main control unit. The first optical sensor is disposed on the body 1 and is electrically connected to the light-emitting element 2 and the main control unit. The first optical sensor is used to measure the distance between the treatment end 11 and the skin. The main control unit determines the fit between the two based on the distance between the treatment end 11 and the skin. It is understood that the light-emitting element 2 emits light towards the skin, and the first optical sensor receives the light reflected from the skin. It calculates the distance between the treatment end 11 and the skin based on the round-trip time of the light and converts it into an electrical signal, which is then sent to the main control unit. The main control unit measures the distance between the treatment end and the skin to detect the fit between them.
[0047] In some other embodiments, the treatment head further includes a second optical sensor and a main control unit. The second optical sensor is disposed on the treatment end 11 and electrically connected to the main control unit, and is used to measure the intensity of reflected light. The main control unit determines the degree of adhesion between the treatment end and the skin based on the intensity of reflected light detected by the second optical sensor. When the treatment end approaches or contacts the skin, the characteristics of the reflected light (such as intensity, distribution, etc.) change. The second optical sensor is responsible for receiving the light signal reflected from the skin surface and sending it to the main control unit. The main control unit converts the data it detects into information that can be used for calculation and evaluation, thereby determining the degree of adhesion between the treatment end 11 and the skin.
[0048] In other embodiments, the treatment head further includes a pressure sensor and a main control unit. The pressure sensor is disposed at the treatment end 11 and electrically connected to the main control unit. It is used to detect the pressure value applied by the treatment end 11 to the skin. The main control unit determines the degree of adhesion between the treatment end and the skin based on the pressure value detected by the pressure sensor. The pressure sensor is preferably made of a flexible material to adapt to various shapes of human body surfaces and maintain good measurement accuracy. It is understood that integrating the pressure sensor into the treatment end 11 allows for direct sensing of pressure changes on the contact surface between the treatment head and the skin. Before treatment begins, a comprehensive pressure calibration test is performed. The doctor gently presses the treatment head to the predetermined position according to a standardized procedure and records the standard readings of each pressure sensor at this time as a baseline. During treatment, when the treatment head is gently pressed against the patient's skin, the pressure sensor records the pressure value at that point. As the treatment head gradually applies force to the skin, the pressure sensed by the pressure sensor also increases. The collected pressure values are converted into electrical signals by the built-in circuit and sent to the main control unit. The quality of the fit is evaluated by comparing the current measured data with the previously stored baseline value. If a specific area is found to have significantly lower than normal pressure, it is considered that there may be insufficient contact. Conversely, if there is excessively high pressure in a certain area, it may increase the risk of tissue damage. This prompts the user to make appropriate adjustments to ensure that the treatment head and skin achieve optimal fit, thereby improving the treatment effect and reducing side effects.
[0049] This application also discloses a therapeutic device (not shown). The therapeutic device includes the aforementioned treatment head, main unit, and handle. The main unit is connected to the handle via a cable, and the treatment head is detachably connected to the handle. Since the therapeutic device employs all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.
[0050] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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. Such 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 this application.
Claims
1. A treatment head, characterized in that, include: The main body is provided with a treatment end for contact with the skin, and the treatment end is provided with a treatment window; A light-emitting element is disposed within the body for emitting light outward from the treatment window; or, the light-emitting element is disposed at the treatment end for emitting light in a direction away from the treatment end. The light-emitting element is used to detect whether the treatment end is well attached to the skin. When the treatment end is well attached to the skin, the light emitted by the light-emitting element does not leak.
2. The treatment head according to claim 1, characterized in that, The body includes an inner shell, which encloses a receiving cavity, and the light-emitting element is disposed within the receiving cavity.
3. A treatment head according to claim 2, characterized in that, The body also includes an ultrasonic transducer for generating ultrasonic waves, the ultrasonic transducer being disposed within the receiving cavity; the light-emitting element is disposed in the central region of the ultrasonic transducer.
4. A treatment head according to claim 2, characterized in that, The body also includes an ultrasonic transducer for generating ultrasonic waves, the ultrasonic transducer being disposed within the receiving cavity; a plurality of light-emitting elements are provided, and the plurality of light-emitting elements are arranged around the ultrasonic transducer.
5. A treatment head according to claim 1, characterized in that, The main body includes an inner shell and an outer shell. The outer shell covers the outside of the inner shell. The outer shell is provided with a mounting groove near the treatment end. The mounting groove is located on one side of the treatment window and is used to install and accommodate the light-emitting element.
6. A treatment head according to claim 5, characterized in that, The light-emitting element is provided in multiple ways, and the multiple light-emitting elements are arranged around the treatment window.
7. A treatment head according to claim 1, characterized in that, The treatment head also includes a light guide, which is arranged in a ring around the treatment end. The light guide is used to conduct the light leaked by the light-emitting element to the periphery of the treatment end when the treatment end does not fit well with the skin.
8. A treatment head according to claim 1, characterized in that, It also includes a first optical sensor and a main control unit. The first optical sensor is disposed on the body and is electrically connected to the light-emitting element and the main control unit. It is used to measure the distance between the treatment end and the skin. The main control unit determines the degree of fit between the two based on the distance between the treatment end and the skin.
9. A treatment head according to claim 1, characterized in that, The treatment head also includes a second optical sensor and a main control unit. The second optical sensor is disposed at the treatment end and is electrically connected to the main control unit for measuring the intensity of reflected light. The main control unit determines the degree of adhesion between the treatment end and the skin based on the intensity of reflected light detected by the second optical sensor. And / or, the treatment head further includes a pressure sensor and a main control unit. The pressure sensor is disposed on the treatment end and is electrically connected to the main control unit for detecting the pressure value applied by the treatment end to the skin. The main control unit determines the degree of fit between the treatment end and the skin based on the pressure value detected by the pressure sensor.
10. A treatment head according to claim 1, characterized in that, The treatment head also includes an ambient light sensor and a main control unit. The ambient light sensor is electrically connected to the light-emitting element and the main control unit and is used to measure the light intensity of the ambient light. The main control unit adjusts the light source intensity of the light-emitting element according to the light intensity detected by the ambient light sensor.
11. A therapeutic device, characterized in that, Includes the treatment head as described in any one of claims 1 to 10.