Therapeutic hand implement and therapeutic device
By designing multi-level signal zones and sensor combinations in the laser handpiece, the problem of insufficient signal area at different settings is solved, enabling high-precision adjustment of the spot size, improving the accuracy and controllability of treatment, and making it suitable for medical aesthetic treatments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PENINSULA MEDICAL CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-19
Smart Images
Figure CN224370481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a treatment hand and treatment instrument. Background Technology
[0002] In medical aesthetic devices, the laser handpiece is a key component. Laser energy is emitted from the laser, travels through optical fibers or a light guide arm to the handpiece, and is then shaped by optical lenses within the handpiece before being delivered to the treatment area on the skin. For different lesion areas and types, precise parameters need to be adjusted accordingly to achieve the desired treatment effect. Precise treatment parameters involve the combined adjustment of current amplitude, pulse width, repetition frequency, and spot size. Among these, the adjustment and identification of spot size has a significant impact on treatment. Small spot sizes are suitable for delicate manipulation and treating tiny lesions, such as precisely removing small pigment spots, freckles, and age spots. Large spot sizes are suitable for treating larger lesions or areas requiring uniform heating / stimulation, such as large areas of pigmentation.
[0003] In related technologies, laser handpieces use photoelectric sensors to identify the position of the laser beam level to determine the current spot size. The spot size is changed by changing the laser beam level. Currently, due to factors such as the size of the laser handpiece, it is not possible to set a large area of the laser beam level signal region to obtain more levels. This results in insufficient stepping accuracy of the laser beam level, causing large changes in the laser spot size between adjacent levels. When the size change of the lesion area is small, the stepping accuracy of the laser beam level display cannot meet the scale of change in the lesion area, thereby reducing the accuracy and controllability of the treatment process. Utility Model Content
[0004] The main purpose of this invention is to propose a treatment handpiece that addresses the problem of limited adjustable spot size settings in existing treatment handpieces, thereby improving the precision and controllability of the treatment process.
[0005] To achieve the above objectives, the therapeutic handpiece proposed in this utility model includes:
[0006] A fixing member having an inner cavity, the sidewall of which is provided with a first sensor and a second sensor; and
[0007] A rotating component is rotatably disposed in the inner cavity. The outer surface of the rotating component is provided with a primary signal area and a secondary signal area. The primary signal area and the secondary signal area are arranged along the axial direction of the rotating component. The primary signal area has a plurality of primary sensing elements along the circumferential direction of the rotating component. The secondary signal area has a plurality of sub-sections along the circumferential direction of the rotating component, each of the sub-sections corresponding to one primary sensing element in the axial direction of the rotating component, and each sub-section is provided with a plurality of secondary sensing elements.
[0008] Wherein, the first sensor is configured to sense the first-level sensing unit, the second sensor is configured to sense the second-level sensing unit, each of the first-level sensing units is configured to calibrate a size range of different light spot sizes, and each of the second-level sensing units is configured to calibrate different size values corresponding to the size range.
[0009] In one embodiment of the present invention, each of the secondary sensing units includes at least one first sensing module and at least one second sensing module. The first sensing module and the second sensing module are arranged along the axial direction of the rotating member. The number of the second sensors is equal to the sum of the number of the first sensing modules and the number of the second sensing modules of one of the secondary sensing units.
[0010] In one embodiment of the present invention, the first sensing module of any of the secondary sensing units in each of the sub-partitions is offset from the first sensing module of another adjacent secondary sensing unit along the axial direction of the rotating member.
[0011] In one embodiment of this utility model, the first sensing module is a signal reflection groove, and each second sensing module is the outer surface of the first sensing module in the secondary sensing part.
[0012] In one embodiment of the present invention, each of the secondary sensing units has at least one sensing position along the axial direction of the rotating member, and any two sensing positions arranged and aligned along the circumferential direction of the rotating member are spaced apart to form an air-avoiding zone.
[0013] In one embodiment of the present invention, the sidewall of the inner cavity is further provided with a third sensor, the outer surface of the rotating member is provided with a switching signal area, the switching signal area is located between the first-level signal area and the second-level signal area along the axial direction of the rotating member, the switching signal area is provided with a plurality of first switching sensing parts, each of the first switching sensing parts is located between any two adjacent first-level sensing parts along the circumferential direction of the rotating member;
[0014] The third sensor is configured to sense the first switching sensing unit.
[0015] In one embodiment of the present invention, a second switching sensing unit is provided between any two adjacent secondary signal areas, and each second switching sensing unit and a first switching sensing unit are provided correspondingly along the axial direction of the rotating member.
[0016] The second sensor is configured to sense the second switching sensing unit.
[0017] In one embodiment of this utility model, each of the first switching sensing units and each of the first-level sensing units on the adjacent two sides have an error overlap area along the axial direction of the rotating member.
[0018] In one embodiment of the present invention, the outer surface of the secondary signal area is provided with a plurality of signal reflection grooves, each of the signal reflection grooves forming the secondary sensing part; each of the signal reflection grooves extends along the radial direction of the rotating member to form a signal loss surface.
[0019] In one embodiment of the present invention, the treatment handpiece further includes a damping element disposed in the inner cavity of the fixing element; the damping element includes a fixed ring and a rotating ring rotatably connected, the fixed ring being fixedly connected to the fixing element, and the rotating ring being fixedly connected to the rotating element.
[0020] In one embodiment of the present invention, the treatment handpiece further includes a protective cover, which is fitted onto the outer peripheral surface of the fixing member. The protective cover has a cable outlet, which is configured to allow a cable to pass through to connect to the treatment host of the treatment device.
[0021] This utility model also proposes a therapeutic device, which includes a main unit and a therapeutic handpiece as described above, wherein the main unit is connected to the therapeutic handpiece.
[0022] In this technical solution, the treatment handpiece includes a fixed component and a rotating component. The inner wall of the fixed component is equipped with a first sensor and a second sensor. The rotating component is rotatably disposed in the inner cavity, and its outer surface is provided with a primary signal area and a secondary signal area arranged axially. The primary signal area has multiple primary sensing elements along the circumference, and the secondary signal area has multiple sub-regions along the circumference. Each sub-region corresponds to a primary sensing element and is equipped with multiple secondary sensing elements. By using the axially arranged primary and secondary signal areas (containing sub-regions that correspond one-to-one with the primary sensing elements), coarse and fine settings are combined. Secondary settings are divided within an area of equal signal region. The first sensor identifies the primary sensing elements to divide the size range of the light spot. The second sensor identifies the secondary sensing elements within the sub-regions to accurately locate the specific value within the range. This significantly increases the number of settings within a limited volume, solving the problem of insufficient setting accuracy caused by space limitations of traditional single-area sensors. Ultimately, high-precision adjustment of the light spot size is achieved, which not only meets the precise needs of medical aesthetic treatment for small lesions and large-area differentiated light spots, but also ensures the miniaturization design of the device. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0024] Figure 1 A schematic diagram of the structure of an embodiment of the rotating component provided by this utility model;
[0025] Figure 2 A schematic diagram showing the arrangement of the secondary sensing units in an embodiment of the therapeutic handpiece provided by this utility model;
[0026] Figure 3 A schematic diagram of the structure of the therapeutic handpiece provided by this utility model.
[0027] Explanation of icon numbers:
[0028] 10. Fasteners;
[0029] 11. First sensor; 12. Second sensor; 13. Third sensor;
[0030] 20. Rotating parts;
[0031] 21. Primary signal area; 21a. Primary sensing unit;
[0032] 22. Secondary signal zone; 22a. Sub-zone; 221. Secondary sensing unit; 22b. Clearance zone;
[0033] 23. Switching signal area; 23a. First switching sensing unit;
[0034] 24. Second switching sensor unit;
[0035] 200. Signal reflection groove; 201. Helical track;
[0036] 30. Damping component; 31. Fixed ring; 32. Moving ring;
[0037] 40. Protective cover;
[0038] 50. Cables;
[0039] 60. Focusing lens.
[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0042] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0043] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the 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 impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0044] Please see Figure 1 and Figure 3The therapeutic handpiece proposed in this utility model includes a fixing member 10 and a rotating member 20. The fixing member 10 has an inner cavity, and a first sensor 11 and a second sensor 12 are provided on the side wall of the inner cavity. The rotating member 20 is rotatably disposed in the inner cavity. The outer surface of the rotating member 20 is provided with a primary signal area 21 and a secondary signal area 22. The primary signal area 21 and the secondary signal area 22 are arranged along the axial direction of the rotating member 20. The primary signal area 21 has a plurality of primary sensing parts 21a along the circumferential direction of the rotating member 20. The secondary signal area 22 is arranged along the circumferential direction of the rotating member 20. The sub-section 22a has multiple matching primary sensing units 21a, each sub-section 22a is provided with one primary sensing unit 21a in the axial direction of the rotating member 20, and each sub-section 22a is provided with multiple secondary sensing units 221; wherein, the first sensor 11 is configured to sense the primary sensing unit 21a, the second sensor 12 is configured to sense the secondary sensing unit 221, each primary sensing unit 21a is configured to calibrate a size range of different light spot sizes, and each secondary sensing unit 221 is configured to calibrate different size values of the corresponding size range.
[0045] In this technical solution, the treatment handpiece includes a fixing member 10 and a rotating member 20. The inner wall of the fixing member 10 is provided with a first sensor 11 and a second sensor 12. The rotating member 20 is rotatably disposed within the inner cavity, and its outer surface is provided with a primary signal area 21 and a secondary signal area 22 arranged axially. The primary signal area 21 has multiple primary sensing parts 21a circumferentially, and the secondary signal area 22 has multiple sub-sections 22a circumferentially. Each sub-section 22a corresponds to one primary sensing part 21a and is provided with multiple secondary sensing parts 221. Through the axially arranged primary signal area 21 and secondary signal area 22 (containing the primary sensing parts 21a…), the treatment handpiece… The corresponding sub-partition 22a) realizes the combination of coarse and fine levels, and achieves two-level level division within the same signal area. The first sensor 11 identifies the first-level sensing unit 21a to divide the size range of the light spot, and the second sensor 12 identifies the second-level sensing unit 221 within the sub-partition 22a to accurately locate the specific value within the range. This greatly increases the number of levels within a limited volume, solves the problem of insufficient level accuracy caused by space limitations of traditional single-area sensors, and ultimately achieves high-precision adjustment of the light spot size. This not only meets the precise needs of medical aesthetic treatment for small lesions and large-area differentiated light spots, but also ensures the miniaturization design of the device.
[0046] Specifically, the fixing component 10 of the treatment handpiece refers to the immovable structure within the handpiece, which includes the inner cylinder and the sleeve. In terms of assembly, the inner cylinder provides a fixing base for the sleeve. The sleeve has a hollow structure and can be fixed to the outer periphery of the inner cylinder via set screws. The internal space of the sleeve avoids the remaining space of the inner cylinder, forming an inner cavity. The first sensor 11 and the second sensor 12 are located on the inner side of the sleeve, avoiding the inner cylinder. This ensures that the two sensors are fixed in the inner cavity while preventing signal feedback errors. In terms of function, the inner cylinder contains multiple optical lenses, such as focusing lenses, beam expanders, or scanning galvanometers, which directly support the optical path shaping system to ensure precise laser focusing or the formation of a specific spot pattern. The sensor located on the inner side of the sleeve can emit electrical signals to display the spot size. The operator can intuitively know the current laser spot size through the display module of the treatment device, thereby adjusting treatment parameters such as the spot size or laser energy.
[0047] The rotating component 20 of the treatment handpiece refers to the rotatable structure within the handpiece, primarily consisting of an outer cylinder. In assembly, the inner cylinder provides a fixed base for the inner sleeve. Specifically, the outer cylinder extends through the opening of the inner sleeve into the inner cavity and is rotatably connected to it. Structures enabling relative rotation between the two can include bearings, connectors, damping rings, etc. Thus, the user can rotate the outer cylinder to achieve circumferential rotation relative to the inner cylinder. It is understood that after the treatment handpiece is assembled, a certain distance is formed between a portion of the outer surface of the outer cylinder and a portion of the inner surface of the inner sleeve, thereby preventing the first sensor 11 and the second sensor 12 located on the inner surface of the inner sleeve from interfering with the outer cylinder. Interference can cause collisions and jamming during rotation between the two components. Functionally, the outer surface of the handpiece's outer cylinder is provided with a primary signal area 21 and a secondary signal area 22. The primary signal area 21 and the secondary signal area 22 are arranged along the axial direction of the handpiece's outer cylinder. At the same time, the primary signal area 21 and the first sensor 11 are aligned circumferentially along the same axial direction, and the secondary signal area 22 and the second sensor 12 are aligned circumferentially along another axial direction. The first sensor 11 and the second sensor 12 respectively sense the primary signal area 21 and the secondary signal area 22 to generate different electrical signals. These electrical signals are transmitted to the control center of the therapeutic instrument for signal processing, thereby displaying the current spot size on the display module of the therapeutic instrument.
[0048] It is understood that the inner cavity of the handpiece outer cylinder is equipped with a lens structure that can change the laser focal length (defined as focusing lens 60 in the application for clarity). Rotating the handpiece outer cylinder can change the size of the laser spot at the lesion location. Specifically, the inner cavity of the handpiece outer cylinder is equipped with a spiral guide groove or spiral track 201 extending along its axial direction. The end face of the focusing lens 60 has a structure, such as a pin, that can slide in the spiral guide groove or spiral track 201. By rotating the handpiece outer cylinder, the focusing lens 60 can move closer to or further away from the inner cylinder along the axial direction of the handpiece outer cylinder on the spiral guide groove or spiral track 201, thereby changing the laser focal length and ultimately changing the size of the laser spot at the lesion location.
[0049] In some embodiments, the first sensor 11 and the second sensor 12 are arranged along the axial direction of the hand sleeve, with the first sensor 11 positioned closer to the inner cylinder than the second sensor 12. The first sensor 11 is a color sensor capable of recognizing colors, and the second sensor 12 is a photoelectric sensor. The signal area on the outer cylinder of the hand can be obtained by connecting a signal ring to the outer cylinder via screwing, snap-fitting, welding, etc. The signal ring is fixedly connected to a rotating structure to achieve relative rotation with the inner cylinder. Alternatively, a signal area that can be recognized by the color sensor and photoelectric sensor can be directly formed on the outer circumferential surface of the outer cylinder. The primary signal area 21 is formed by an arbitrary number of strip-shaped color areas of different colors. Each strip-shaped color area is a primary sensing unit 21a. The primary sensing units 21a are arranged along the circumferential direction of the outer cylinder. Whether any two adjacent primary sensing units 21a are spaced apart is not limited, as long as there is theoretically no overlapping area exceeding the error range between any two adjacent primary sensing units 21a (i.e., the area of a single overlapping area and the area of a single primary sensing unit 21a are equal). The area ratio is within a preset range. The primary sensing unit 21a can be formed by UV digital printing, laser marking combined with filler color, color sheet, etc., or by other processes or structures, which are not limited here. The secondary signal area 22 includes multiple sub-sections 22a that match the number of primary sensing units 21a. The multiple sub-sections 22a are arranged along the circumferential direction of the outer sleeve of the hand tool. Each sub-section 22a corresponds to one primary sensing unit 21a in the axial direction of the hand tool sleeve. Each sub-section 22a includes multiple identical secondary sensing units 221. The multiple secondary sensing units 22a of each sub-section 22a... The secondary sensing units 221 are arranged along the circumferential direction of the outer cylinder of the handpiece and are encoded so that different secondary sensors 12 detect different positions of the secondary sensing units 221 and generate different electrical signals. The secondary sensing units 221 can be high-density grating stripes. The emitting end of the second sensor 12 emits infrared light, and the receiving end receives the intensity of the reflected light to generate a pulse signal. Combined with the electrical signal of the first sensor 11, the display module of the therapeutic instrument displays the current spot size, which makes it easy for the operator to intuitively obtain the current spot size and facilitate the subsequent magnification or reduction of the spot.
[0050] In one embodiment, the primary signal region 21 includes three primary sensing units 21a, which correspond to red, green, and blue light, respectively. The red primary sensing unit 21a is encoded to correspond to a light spot size range of 0.1-0.2 mm, the green primary sensing unit 21a is encoded to correspond to a light spot size range of 0.2-0.3 mm, and the blue primary sensing unit 21a is encoded to correspond to a light spot size range of 0.3-0.4 mm. The secondary signal region 22... The system includes three sub-sections 22a, each with the same number of secondary sensing units 221. The first sub-section 22a corresponds to the red primary sensing unit 21a, the second sub-section 22a corresponds to the green primary sensing unit 21a, and the third sub-section 22a corresponds to the blue primary sensing unit 21a. The multiple secondary sensing units 221 in the first sub-section 22a correspond to 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, and 0.19, respectively. The ten gear precision values are as follows: the multiple secondary sensors 221 in the second sub-section 22a correspond to ten gear precision values of 0.20, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, and 0.29, respectively; the multiple secondary sensors 221 in the third sub-section 22a correspond to ten gear precision values of 0.30, 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, and 0.39, respectively. By using two-level settings, a higher precision spot size display can be achieved within a limited signal area. For example, when the user rotates the outer cylinder at a certain angle, the spot size actually changes from 0.21mm to 0.22mm. However, traditional settings are limited by step precision, and the final displayed value is 0.25mm or even 0.3mm. As a result, the required spot size cannot be obtained in the first instance. This not only affects the treatment effect but also prolongs the treatment time, increasing the physical burden and time cost for both the operator and the patient.
[0051] It is understood that the position of the secondary sensor 221 at any location corresponds to the position of a focusing lens 60, and is encoded to correspond to a light spot size. Therefore, each time the user reuses the treatment handpiece proposed in this application, the current position of the focusing lens 60 corresponds to the current light spot size, and there is no need to perform zero calibration. It should be explained here that the core concept of this application is how to form a higher step accuracy level display in a limited signal area, rather than improving the level adjustment accuracy. At the same time, encoding the sensor is prior art and will not be explained in detail here.
[0052] Furthermore, the sidewall of the inner cavity has multiple second sensors 12, each second sensor 12 is arranged along the axial direction of the rotating member 20, and each secondary sensing part 221 of each sub-section 22a is offset along the circumferential direction of the rotating member 20. Please refer to [link to relevant documentation]. Figure 3 In one embodiment, the sidewall of the inner cavity has four second sensors 12, which are arranged along the axial direction of the rotating member 20. Ten secondary sensing units 221 in each sub-section 22a are staggered along the circumferential direction of the rotating member 20. Specifically, each secondary sensing unit 221 has multiple sensing positions, not exceeding the number of second sensors 12. In this embodiment, a single sensing position can be a single high-density grating stripe. The sensing positions of each secondary sensing unit 221 are arranged along the axial direction of the rotating member 20. The sensing position at each axial position corresponds to the second sensor 12 at that axial position in the circumferential direction. Any two adjacent secondary sensing units 221 are staggered along the circumferential direction of the rotating member 20 so that the sensing positions of any two adjacent secondary sensing units 221 are staggered along the axial direction of the rotating member 20. In this way, each rotation of the rotating member 20 by a unit angle allows the second sensors 12 at different positions to sense different sensing positions, thereby generating different electrical signals for reading the spot size. This prevents the generation of identical readings within the same sub-section 22a, thereby improving the accuracy of the encoded reading. It is understandable that the sensing position of the second sensor 12 and each secondary sensing unit 221 is not limited here. It can be customized according to cost, actual needs and other factors without changing the signal area.
[0053] In other embodiments, each of the secondary sensing units 221 includes at least one first sensing module and at least one second sensing module, the first sensing module and the second sensing module being arranged along the axial direction of the rotating member 20, and the number of second sensors being equal to the sum of the number of first sensing modules and the number of second sensing modules of one of the secondary sensing units; see reference. Figure 3 In the leftmost secondary sensing unit 221, there are two first sensing modules and two second sensing modules, for a total of four second sensors. When a second sensor corresponds to a first sensing module, it generates a high-level signal; when it corresponds to another second sensing module, it generates a low-level signal. The four second sensors correspond to the four sensing modules, generating four high / low level signals depending on whether the sensing module is a first or second sensing module. In the multiple secondary sensing units 221 within the same sub-section 22a, there are no identical arrangements of first and second sensing modules, thus preventing the four second sensors from generating the same sequence of high / low level signals.
[0054] In some embodiments, the first sensing module of any secondary sensing unit 221 in each sub-partition 22a is offset from the first sensing module of another adjacent secondary sensing unit 221 along the axial direction of the rotating member 20, thus forming a clearance zone. This is to avoid interference between adjacent secondary sensing units 221. Any two first sensing modules arranged and aligned along the circumferential direction of the rotating member 20 are spaced apart to form a clearance zone 22b. Please refer to [link to relevant documentation]. Figure 2 and 3 Safe Zone 22b is Figure 2 As shown in the closed-loop diagrams such as ellipses and circles, the setting of the clearance zone 22b can prevent any two adjacent secondary sensing units 221 along the circumferential direction of the rotating member 20 from being detected by the same second sensor 12, thereby ensuring the accuracy of the reading. At the same time, the spot size accuracy values corresponding to the two secondary sensing units 221 on both sides of each clearance zone 22b differ by at least two accuracy units. For example, the two secondary sensing units 221 on both sides of a single clearance zone 22b are 0.12 and 0.14, respectively. This design allows the change in spot size to be more clearly and accurately identified and displayed when the second sensor 12 moves from one secondary sensing unit 221 across the clearance zone 22b to the next during the rotation of the rotating member 20. This avoids reading confusion or errors caused by the accuracy values being too close, providing the operator with more intuitive and accurate spot size feedback, thereby improving the treatment effect and patient experience.
[0055] Please see Figure 2Each sub-section 22a includes multiple secondary sensing units 221, which are arranged along the circumferential direction of the rotating member 20 to match the rotation direction of the rotating member 20. Specifically, each secondary sensing unit 221 includes at least one first sensing module and one second sensing module. The first and second sensing modules of different secondary sensing units 221 are located at different positions along the axial direction of the rotating member 20 so that they can be detected and identified by different second sensors 12 to generate corresponding electrical signals. In one embodiment, the sidewall of the inner cavity has four second sensors 12, which are arranged along the axis of the rotating member 20. Arranged in a axial direction, one of the plurality of secondary sensing units 221 includes two first sensing modules and two second sensing modules. The first and second sensing modules of the secondary sensing unit 221 are arranged along the axial direction of the rotating member 20, and are alternately arranged along this direction. Another of the plurality of secondary sensing units 221 includes one first sensing module and three second sensing modules. The first and second sensing modules of the secondary sensing unit 221 are arranged along the axial direction of the rotating member 20, and the first sensing module is located at the end of the three second sensing modules along this direction. The plurality of secondary sensing units 221 Another type includes three first sensing modules and one second sensing module. The first and second sensing modules of the secondary sensing unit 221 are arranged along the axial direction of the rotating member 20, and the second sensing module is located at the end of the three first sensing modules along this direction. At the same time, the first sensing module of any secondary sensing unit 221 in each sub-section 22a is staggered from the second sensing module of another adjacent secondary sensing unit 221 along the axial direction of the rotating member 20. In this way, it can be ensured that each second sensor 12 will not sense the first sensing module sequentially when sensing two adjacent secondary sensing units 221. The module or second sensing module is used to avoid a single second sensor 12 continuously generating the same electrical signal, thereby improving the module's recognition accuracy. In the above embodiments, the second sensor 12 can be a Hall sensor. The first sensing module and the second sensing module are magnets capable of emitting different magnetic field strengths. The Hall sensor senses different magnetic field strengths and emits different electrical signals to generate corresponding accuracy values. It can be understood that the core of this utility model lies in dividing the reading range by setting different signal areas. Magnetic interference can be reduced by using the magnetic shielding structure in the prior art. How to solve magnetic interference is prior art and will not be explained further here.
[0056] In one embodiment, the first sensing module is a signal reflection groove 200, and each of the second sensing modules is the outer surface of the secondary sensing unit 221 that is disposed away from the signal reflection groove 200. Specifically, please refer to Figure 1A signal reflection groove 200 is formed on the outer surface of the secondary signal area 22 through injection molding and machining. When the laser signal emitted by the photoelectric sensor reaches the signal reflection groove 200, the laser signal is reflected back to the receiving end of the photoelectric sensor through the groove wall. During this process, the laser signal experiences energy loss in the groove wall. This energy loss is identified by the photoelectric sensor as a specific signal characteristic. Based on a preset threshold or signal characteristic, the photoelectric sensor can determine whether it has sensed the sensing position represented by the signal reflection groove 200, thus determining that the first sensing module has been sensed, and generating a corresponding electrical signal to the therapeutic device. In this way, by setting the signal reflection groove 200, the manufacturing process is simplified and the electronic cost is reduced, while still achieving precise spot size adjustment and display functions. It is understood that the cross-sectional shape of the signal reflection groove 200 can be "V" shaped, wavy, etc., as long as it meets the requirement that the laser signal emitted by the photoelectric sensor undergoes signal loss. The surface can be reflected back to the receiving end, and there is no limitation here. At the same time, when the laser signal emitted by the photoelectric sensor reaches the outer surface of the secondary sensing unit 221, because the energy loss is less than the energy loss caused by the reflection of the signal reflection groove 200, the photoelectric sensor can generate another electrical signal. Combined with the electrical signal of the first sensor 11, multiple electrical signals are emitted to the control center of the therapeutic instrument for signal processing, thereby displaying the current spot size on the display module of the therapeutic instrument. In this way, by forming a sensing module that can be recognized by the photoelectric sensor directly on the outer surface of the rotating part 20 through the slotting method, the electronic cost of the therapeutic handpiece is greatly reduced. While simplifying the manufacturing process and reducing electronic costs, it can still achieve precise spot size adjustment and display functions. It can be understood that the cross-sectional shape of the signal reflection groove 200 can be "V" shaped, wavy, etc., as long as the laser signal emitted by the photoelectric sensor can be reflected back to the receiving end through the signal loss surface, and there is no limitation here.
[0057] Please see Figure 1In one embodiment of this utility model, a third sensor 13 is further provided on the side wall of the inner cavity, and a switching signal area 23 is provided on the outer surface of the rotating member 20. The switching signal area 23 is located between the first-level signal area 21 and the second-level signal area 22 along the axial direction of the rotating member 20. The switching signal area 23 is provided with a plurality of first switching sensing parts 23a, and each first switching sensing part 23a is located between any two adjacent first-level sensing parts 21a along the circumferential direction of the rotating member 20. The third sensor 13 is configured to sense the first switching sensing parts 23a. Specifically, the first sensor 11, the third sensor 13, and the second sensor 23a are all connected together. Sensors 12 are arranged sequentially along the axial direction of the rotating member 20. A primary signal area 21, a switching signal area 23, and a secondary signal area 22 are also arranged sequentially along the axial direction of the rotating member 20. The first sensor 11 corresponds to the primary signal area 21 along the circumferential direction of the rotating member 20; the second sensor 12 corresponds to the secondary signal area 22 along the circumferential direction of the rotating member 20; and the third sensor 13 corresponds to the switching signal area 23 along the circumferential direction of the rotating member 20. The switching signal area 23 is formed by multiple strip-shaped color areas of different numbers and colors. Each strip-shaped color area is a first switching sensing unit 23a, and all... The color of the first switching sensing unit 23a is different from the color of the first sensing unit. For example, the color of the first switching sensing unit 23a can be purple, yellow, or gray. Different colors of the first switching sensing units 23a represent switching between different size ranges. The first switching sensing units 23a are arranged along the circumferential direction of the rotating member 20. The first switching sensing units 23a can be formed by processes or structures such as UV digital printing, laser marking combined with fill color, and color sheets, which are not limited here. When the rotating member 20 rotates relative to the fixed member 10, the third sensor 13 can sense the first switching sensing units 23a. This generates a behavior indicating cross-zone rotation, such as rotating from the primary signal zone 21 representing 0.1mm-0.2mm to the primary signal zone 21 representing 0.2mm-0.3mm. While preventing the risk of misidentification during zone switching, the operator can clearly know the current switching status of the light spot size range, further improving the ease of use of the treatment handpiece and the accuracy of light spot size adjustment. Understandably, in order to avoid the problem of color recognition confusion between the first sensor 11 and the third sensor 13, a baffle can be set between the two to isolate the light and avoid interference.
[0058] Furthermore, a second switching sensing unit 24 is provided between any two adjacent secondary signal areas 22, and each second switching sensing unit 24 is correspondingly arranged with a first switching sensing unit 23a along the axial direction of the rotating member 20; wherein, the second sensor 12 is configured to sense the second switching sensing unit 24, specifically, please refer to Figure 1Each second switching sensor 24 has three sensing positions, which are arranged along the axial direction of the rotating member 20. It should be noted that the number of sensing positions of the second switching sensor 24 is different from the number of sensing positions of the second-level sensor 221. In this way, even if the same second sensor 12 is used, different switching signals can be generated by encoding different signals due to the difference in the number of sensors. At the same time, each second switching sensor 24 is staggered along the circumferential direction of the rotating member 20 so that each second switching sensor 24 represents a specific size range, avoiding signal confusion. In this technical solution, the combination of the second switching sensor 24 and the first switching sensor 23a can provide double protection for zone switching and avoid the risk of misidentification during zone switching.
[0059] In one embodiment of this utility model, please refer to Figure 1 Each first switching sensing unit 23a and each of the adjacent first-level sensing units 21a on both sides have an error overlap area along the axial direction of the rotating member 20. In one embodiment, any two adjacent first-level sensing units 21a are spaced apart, while in another embodiment, any two adjacent first-level sensing units 21a are connected. In both embodiments, the first switching sensing unit 23a near these two first-level sensing units 21a has an error overlap area along the axial direction of the rotating member 20 with the two first-level sensing units 21a. This error overlap area mainly corresponds to the accuracy error of the spot size adjustment. In actual operation, when the rotating member 20 rotates, the third sensor 13 may not be able to accurately sense the first switching sensing unit 23a at the ideal position due to factors such as mechanical tolerances and sensor response characteristics. Therefore, by setting the error overlap area, it can be ensured that the third sensor 13 can reliably sense the first switching sensing unit 23a within a certain range during the rotation of the rotating member 20, thereby accurately identifying that the rotating member 20 has crossed into a new size range. For example, when the rotating component 20 rotates from the primary signal zone 21 representing 0.1mm-0.2mm to another signal zone 21 representing 0.2mm-0.3mm, the third sensor 13 senses the first switching sensor 23a within the error overlap zone, triggering a signal indicating that the rotating component 20 has crossed into the new size range. This design not only improves the reliability of signal sensing but also enhances the fault tolerance of the treatment handpiece during spot size adjustment, ensuring that the operator can accurately obtain the current spot size range information, thereby improving treatment effectiveness and operational convenience.
[0060] Please see Figure 3To achieve stepless adjustment of the light spot size, the treatment handpiece also includes a damping element 30, which is disposed within the inner cavity of the fixed element 10. The damping element 30 includes a fixed ring 31 and a moving ring 32 that are rotatably connected. The fixed ring 31 is fixedly connected to the fixed element 10, and the moving ring 32 is fixedly connected to the rotating element 20. Specifically, the fixed ring 31 is fixedly connected to the outer side of the inner cylinder of the handpiece of the fixed element 10 through a positioning pin or other structure, and the moving ring 32 is fixedly connected to the end face of the outer cylinder of the handpiece facing the inner cylinder of the handpiece of the rotating element 20 through a positioning pin or other structure. The damping element 30 provides a stable damping force for the rotation of the rotating element 20, making the rotation of the rotating element 20 smoother and more controllable. The operator experiences uniform resistance when rotating the rotating component 20, allowing for precise control of the rotation angle and speed. This enables continuous variation in the light spot size, enhancing the user experience and making spot size adjustment more accurate. Simultaneously, the damping component 30 not only facilitates stepless adjustment but also ensures the stability and reliability of the treatment handpiece during use. It effectively reduces wobbling and vibration of the rotating component 20 during rotation, preventing positional deviation due to improper operation or external interference. This ensures the light spot size remains stable within the set range, improving treatment safety and effectiveness. Furthermore, the damping component 30 absorbs some mechanical shock, extending the lifespan of the treatment handpiece.
[0061] Please see Figure 3 To facilitate cable routing, the treatment handpiece also includes a protective cover 40, which is fitted onto the outer periphery of the fixing member 10. The protective cover 40 has a cable 50 outlet, configured for the cable 50 to pass through and connect to the treatment unit of the treatment device. Specifically, the protective cover 40 is fixed to the outer periphery of the fixing member 10 by clips, threads, or other suitable connection methods, ensuring a tight fit while allowing the cable to exit through the cable 50 outlet. The shape and size of the cable 50 outlet are designed to match the cable, ensuring smooth cable passage and a stable connection. Furthermore, the protective cover 40 has a degree of flexibility, which can mitigate external impacts to some extent, protecting the cable from damage and ensuring a stable and reliable electrical connection between the treatment handpiece and the treatment unit.
[0062] This utility model also proposes a therapeutic device, which includes a main unit and a therapeutic handpiece. The specific structure of the therapeutic handpiece is as described in the above embodiments. Since this therapeutic device adopts all the technical solutions of all the embodiments of the therapeutic handpiece described above, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The main unit and the therapeutic handpiece are communicatively connected.
[0063] Specifically, the electrical signals generated by the first sensor 11 and the second sensor 12 are transmitted to the main control center via cable. The control center amplifies and filters the received electrical signals to remove noise and enhance signal strength. Then, it decodes the signals into a light spot size value according to a preset algorithm. The decoded value is sent to the display module for intuitive display in digital or graphical form, allowing the operator to understand and precisely adjust the light spot size in real time. This process achieves high-precision display and real-time feedback, ensuring the safety and effectiveness of the treatment. It is understood that the core purpose of this application is to divide readings into different levels by setting different signal zones. Encoding different levels to form different readings is prior art well known to those skilled in the art and will not be explained further here.
[0064] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A treatment hand for a treatment device, c h a r a c t e r i s e d in that The treatment handpiece includes: A fixing member (10) having an inner cavity, the sidewall of which is provided with a first sensor (11) and a second sensor (12); and A rotating component (20) is rotatably disposed in the inner cavity. The outer surface of the rotating component (20) is provided with a primary signal area (21) and a secondary signal area (22). The primary signal area (21) has a plurality of primary sensing parts (21a) along the circumferential direction of the rotating component (20). The secondary signal area (22) has sub-partitions (22a) along the circumferential direction of the rotating component (20) matching the number of primary sensing parts (21a). Each sub-partition (22a) is provided with one primary sensing part (21a) in the axial direction of the rotating component. Each sub-partition (22a) is provided with a plurality of secondary sensing parts (221). The first sensor (11) is configured to sense the first-level sensing unit (21a), the second sensor (12) is configured to sense the second-level sensing unit (221), each of the first-level sensing units (21a) is configured to calibrate a size range of different light spot sizes, and each of the second-level sensing units (221) is configured to calibrate different size values corresponding to the size range.
2. The treatment handpiece of claim 1, wherein, Each of the secondary sensing units (221) includes at least one first sensing module and at least one second sensing module. The first sensing module and the second sensing module are arranged along the axial direction of the rotating member (20). The number of the second sensors is equal to the sum of the number of the first sensing modules and the number of the second sensing modules of one of the secondary sensing units.
3. The treatment handpiece of claim 2, wherein, The first sensing module of any of the secondary sensing units (221) in each of the sub-partitions (22a) is offset from the first sensing module of the other adjacent secondary sensing unit (221) along the axial direction of the rotating member (20).
4. The treatment handpiece of claim 2, wherein the first and second treatment heads are configured to be moved in a substantially linear path. The first sensing module is a signal reflection groove (200), and each of the second sensing modules is the outer surface of the secondary sensing unit (221) that is provided to avoid the signal reflection groove (200).
5. The treatment handpiece of any one of claims 1 to 4, wherein, The inner cavity is also provided with a third sensor (13) on its side wall. The outer surface of the rotating part (20) is provided with a switching signal area (23). The switching signal area (23) is located between the first-level signal area (21) and the second-level signal area (22) along the axial direction of the rotating part (20). The switching signal area (23) is provided with a plurality of first switching sensing parts (23a). Each first switching sensing part (23a) is located between any two adjacent first-level sensing parts (21a) along the circumferential direction of the rotating part (20). The third sensor (13) is configured to sense the first switching sensing unit (23a).
6. The treatment handpiece of claim 5, wherein the first and second treatment heads are configured to be used simultaneously. A second switching sensing unit (24) is provided between any two adjacent secondary signal areas (22), and each second switching sensing unit (24) is correspondingly provided with a first switching sensing unit (23a) along the axial direction of the rotating member (20); The second sensor (12) is configured to sense the second switching sensing unit (24).
7. The treatment handpiece of claim 5, wherein the first and second treatment heads are configured to be used simultaneously. Each of the first switching sensing units (23a) and each of the first-level sensing units (21a) on the adjacent sides have an error overlap area along the axial direction of the rotating member (20).
8. The treatment handpiece of claim 1, wherein, The treatment handpiece also includes a damping element (30), which is disposed in the inner cavity of the fixing element (10); the damping element (30) includes a fixed ring (31) and a moving ring (32) that are rotatably connected, the fixed ring (31) is fixedly connected to the fixing element (10), and the moving ring (32) is fixedly connected to the rotating element (20).
9. The treatment handpiece as described in claim 1, characterized in that, The treatment handpiece also includes a protective cover (40), which is fitted onto the outer periphery of the fixing member (10). The protective cover (40) has a cable (50) outlet, which is configured to allow the cable (50) to pass through to connect to the treatment host of the treatment device.
10. A therapeutic device, characterized in that, The therapeutic device includes a main unit and a therapeutic handpiece as described in any one of claims 1 to 9, wherein the main unit is connected to the therapeutic handpiece.