Distance gauge for temperature detection and treatment hand tool
By designing the distance gauges for temperature detection in laser beauty equipment, using light intensity detection units and temperature detection units to accurately calculate the skin's absorption coefficient of laser energy, the problems of poor laser beauty treatment and insufficient safety in the prior art are solved, and more efficient and safe treatment effects are achieved.
Patent Information
- Application Number
- CN202421758275.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-24
AI Technical Summary
Existing laser beauty equipment is difficult to accurately detect the skin's absorption of laser energy, resulting in poor treatment effect and insufficient safety.
A temperature detection distance gauges are designed, including a first light intensity detection unit and a second light intensity detection unit for detecting the light intensity of reflected light of the inner layer and surface layer of the skin, and combining with the temperature detection unit, calculate and judge the skin's absorption coefficient of laser energy.
By accurately calculating the skin's absorption coefficient of laser energy, medical staff can adaptively adjust the laser output energy density to improve the safety and effectiveness of laser beauty treatment.
Smart Images
Figure CN222969058U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser beauty equipment, in particular to a distance gauge for temperature detection and a treatment handpiece. Background Art
[0002] Laser beauty is to penetrate a laser beam with a specific wavelength into the epidermis or dermis layer. According to the light selective absorption effect, it is absorbed by the target chromophore. For example, the 1064nm laser can achieve the effect of destroying pigment cells and pigment particles. The destroyed fragments are processed and absorbed by macrophages in the body, leaving no scars safely and achieving the purpose of whitening efficiently. To facilitate medical staff to prepare and control the spot size and perform laser beauty more precisely, for a laser handpiece with non-parallel light output, due to the certain divergence angle of the laser, the distance between the laser source and the skin determines the size of the spot. Therefore, a distance gauge is generally set on the laser beauty treatment handpiece to limit the distance between the skin and the laser source by using the distance gauge. The applicant found in the process of implementing the present invention that the laser beauty treatment effect is related to the skin's absorption effect of laser energy, and different skin tissues have different absorption degrees of laser energy. Accurately detecting the skin's absorption degree of laser energy has a positive significance for guiding laser beauty treatment. Summary of the Utility Model
[0003] The purpose of this application is to provide a distance gauge for temperature detection and a treatment handpiece to solve the above technical problems existing in the prior art, mainly including the following two aspects:
[0004] In the first aspect of this application, a distance gauge for temperature detection is provided, which includes a base body with a preset length along the axial direction. The base body includes a connecting portion and a contact portion provided at the distal end of the connecting portion. The distal end of the contact portion is provided with a contact surface, and a first light intensity detection unit is arranged on the contact surface. The first light intensity detection unit is used to detect the light intensity of the reflected light from the inner layer of the skin. A second light intensity detection unit is arranged on the inner side wall of the contact portion or the connecting portion. The second light intensity detection unit is used to detect the light intensity of the reflected light from the surface layer of the skin. The proximal end of the connecting portion is used to connect the handle of the treatment handpiece.
[0005] Further, the second light intensity detection unit is arranged close to the inner edge of the contact surface.
[0006] Further, the first light intensity detection unit is embedded in the contact portion.
[0007] Further, the detection surface of the first light intensity detection unit is smoothly transitioned with the adjacent contact surface, or the detection surface of the first light intensity detection unit and the contact surface are located in the same plane.
[0008] Further, a plurality of first light intensity detection units are arranged on the contact surface;
[0009] And / or, a plurality of second light intensity detection units are arranged on the inner side wall of the contact portion or the connecting portion.
[0010] Furthermore, the first light intensity detection unit and / or the second light intensity detection unit is a light intensity detection optical fiber, and an installation cavity is provided on the connecting portion, and the light intensity detection optical fiber is inserted into the installation cavity.
[0011] Furthermore, the installation cavity is a hole or a groove on the connecting part.
[0012] Furthermore, a temperature detection unit is provided on the contact surface.
[0013] Furthermore, the temperature detection unit is a temperature detection optical fiber, and the temperature detection optical fiber includes a detection portion, and the detection portion is embedded in the contact surface.
[0014] The second aspect of the present application provides a therapeutic hand tool, including a handle and the above-mentioned distance gauge, wherein the proximal end of the connecting part and the distal end of the handle are arranged, and a laser emitting unit is arranged at the distal end of the handle, and the light emitting direction of the laser emitting unit is parallel to the axial direction.
[0015] Compared with the prior art, the utility model has at least the following technical effects:
[0016] Since the laser is output under controllable conditions, the total amount of laser output energy is known. Combined with the light intensity data of the inner layer of the skin reflected by the first light intensity detection unit and the light intensity data of the surface layer of the skin reflected by the second light intensity detection unit, compared with direct detection of the skin surface temperature by the infrared sensor, the utility model can more accurately calculate and determine the skin's absorption coefficient of laser energy. Based on the calculated skin's absorption coefficient of laser energy, medical staff can adaptively adjust the laser output energy density and perform targeted laser cosmetic treatments, effectively improving the safety and therapeutic effects of laser cosmetic treatments. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a structural schematic diagram of the utility model distance gauge;
[0019] Figure 2 It is a structural schematic diagram of the utility model distance gauge from another perspective;
[0020] Figure 3 is the bottom view of the distance gauge of the present utility model;
[0021] Figure 4 is the exploded view of the distance gauge of the present utility model;
[0022] Figure 5 is the structural schematic diagram of the first light intensity detection unit and the second light intensity detection unit of the present utility model;
[0023] Figure 6 is the structural schematic diagram of the treatment handpiece of the present utility model;
[0024] In the figure,
[0025] 100, handle; 200, base body; 210, connecting portion; 220, contact portion; 221, contact surface; 230, first light intensity detection unit; 240, second light intensity detection unit; 250, temperature detection unit. Specific embodiments
[0026] The following description provides many different embodiments or examples for implementing different features of the present utility model. The elements and arrangements described in the following specific examples are only used to concisely express the present utility model, and they are only examples and are not intended to limit the present utility model.
[0027] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0028] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0029] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over, and on top of the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, under, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.
[0030] In addition, in the present utility model, "proximal end" and "distal end" are the positions of the present structure that are relatively far or near with respect to the human body during use, for the convenience of describing the positional relationship between components and facilitating understanding; for the same component, "proximal end" and "distal end" are the relative positional relationships of the component, rather than absolute; therefore, it should be understood from the perspective of implementing the principle of the present utility model and cannot deviate from the essence of the present utility model.
[0031] To facilitate medical staff in preparing to control the spot size and perform laser beauty more precisely, for a laser handpiece with non-parallel light output, since the laser has a certain divergence angle, the distance between the laser source and the skin determines the size of the spot. Therefore, a distance gauge is generally provided on the laser beauty treatment handpiece to use the distance gauge to limit the distance between the skin and the laser source and assist in laser beauty. The effect of laser beauty treatment is related to the effect of the skin's absorption of laser energy, and different skins have different absorption degrees of laser energy. Accurately detecting the absorption degree of the skin to laser energy is of positive significance for guiding laser beauty treatment. In the prior art, an infrared sensor is generally provided at the distal end of the handle of the treatment handpiece to use the infrared sensor to detect the temperature of the skin treatment area, and it is impossible to accurately detect the absorption degree of the skin to laser energy. To solve the problem of accurately detecting the absorption degree of the skin to laser energy, the present application provides a distance gauge and a treatment handpiece that calculate and determine the absorption coefficient of the skin to laser energy by detecting the reflected light from the skin surface layer and the emitted light from the skin inner layer. The specific structure is as follows in the following embodiments.
[0032] Embodiment 1
[0033] The embodiment of the present application provides a distance gauge for temperature detection, as Figures 1 to 5As shown, it includes a base 200 with a preset length along the axial direction, the base 200 includes a connecting portion 210 and a contact portion 220 arranged at the distal end of the connecting portion 210, the distal end of the contact portion 220 is provided with a contact surface 221, the contact surface 221 is used to abut against the skin, and the distance between the skin and the laser emitting unit on the treatment handpiece is limited by the base 200 with a preset length along the axial direction. When the contact surface 221 of the contact portion 220 abuts against the skin, the laser emitting unit and the skin are in an effective treatment distance; a first light intensity detection unit 230 is arranged on the contact surface 221, and the first light intensity detection unit 230 is used to detect the light intensity of the reflected light from the inner layer of the skin, and a second light intensity detection unit 240 is arranged on the inner side wall of the contact portion 220 or the connecting portion 210, and the second light intensity detection unit 240 is used to detect the light intensity of the reflected light from the surface layer of the skin, as shown in FIG. Figure 6 As shown, the proximal end of the connecting portion 210 is used to connect to the handle 100 of the therapeutic handpiece.
[0034] When in use, the proximal end of the connecting portion 210 is connected to the distal end of the handle 100 of the laser beauty treatment handpiece, so that the axis of the distance gauge is parallel to the emitted light of the laser emission unit on the treatment handpiece, preferably the axis of the distance gauge coincides with the emitted light of the laser emission unit, and the contact portion 220 is arranged around the axis of the distance gauge, and the emitted light of the laser emission unit passes through the distance gauge to irradiate the skin. Due to the difference in the absorption of laser by different human skins, a part of the laser is transmitted and reflected on the surface of the skin, and the second light intensity detection unit 240 detects the light intensity of the reflected light on the surface of the skin accordingly, while the other part of the laser enters the inner layer of the skin. For the laser entering the inner layer of the skin, part of the laser is absorbed by the skin tissue, and part of the laser is reflected from the inner layer to the surface, and the first light intensity detection unit 230 detects the light intensity of the reflected light on the inner layer of the skin accordingly. Since the laser is controllable The laser output is output under certain conditions, the total amount of laser output energy is known, and combined with the light intensity data of the reflected light from the inner layer of the skin by the first light intensity detection unit 230 and the light intensity data of the reflected light from the surface layer of the skin by the second light intensity detection unit 240, compared with the infrared sensor directly detecting the surface temperature of the skin, the absorption coefficient of the laser energy by the skin is more accurately calculated and determined in this embodiment. Based on the calculated absorption coefficient of the laser energy by the skin, medical staff can adaptively adjust the laser output energy density and carry out targeted laser cosmetic treatment, thereby effectively improving the safety and therapeutic effect of laser cosmetic treatment. In addition, since the first light intensity detection unit 230 and the second light intensity detection unit 240 are both arranged on the distance gauge, the detection distance is shortened compared to being arranged on the handle of the treatment handpiece, thereby effectively improving the light intensity detection accuracy, and the subsequent guidance response time for guiding laser cosmetic treatment can also be shortened.
[0035] To improve the accurate detection of the reflected light on the skin surface layer, the second light intensity detection unit 240 can be arranged close to the inner edge of the contact surface 221, so that the surface reflected light of the skin treatment area can be directly detected by the second light intensity detection unit 240, effectively shortening the detection distance and being shielded by the connecting part body, effectively reducing the influence of the external environment on the detection of the second light intensity detection unit 240.
[0036] To enhance the experience of the person being laser-treated, the first light intensity detection unit 230 can be embedded in the contact part 220.
[0037] In some embodiments, the first light intensity detection unit 230 can also be partially or entirely protruded from the contact surface 221.
[0038] In some embodiments, to improve the comfort of using the distance gauge, the detection surface of the first light intensity detection unit 230 can be smoothly transitioned with the adjacent contact surface 221. When the contact surface 221 abuts against the skin surface, the first light intensity detection unit 230 synchronously abuts against the skin surface, and there are no edges or corners at the edge of the first light intensity detection unit 230, ensuring the contact safety and contact comfort between the first light intensity detection unit 230 and the skin.
[0039] In some embodiments, to improve the comfort of using the distance gauge, the detection surface of the first light intensity detection unit 230 can also be located in the same plane as the contact surface 221. When the contact surface 221 abuts against the skin surface, the first light intensity detection unit 230 synchronously abuts against the skin surface, and there are no edges or corners at the edge of the first light intensity detection unit 230, ensuring the contact safety and contact comfort between the first light intensity detection unit 230 and the skin.
[0040] In some embodiments, to improve the detection accuracy, multiple first light intensity detection units 230 can be arranged on the contact surface 221. For the reflected light intensity data of the inner layer of the skin, multiple first light intensity detection units 230 jointly detect it, and then the average value can be taken to improve the detection accuracy and reduce the detection error.
[0041] In some embodiments, multiple second light intensity detection units can also be arranged on the inner side wall of the contact part or the connecting part to improve the detection accuracy and reduce the detection error.
[0042] Specifically, the first light intensity detection unit 230 and / or the second light intensity detection unit 240 is a light intensity detection optical fiber, such as Figure 4As shown, an installation channel is provided on the connecting portion 210, and the light intensity detection optical fiber is disposed through the installation channel. It should be noted that the light intensity detection optical fiber is a prior art and is a sensor based on optical fiber technology for detecting changes in light intensity. It includes a light source, an incident light portion, a modulation region, an outgoing optical fiber portion, a photodetector, and a demodulator. Its basic principle is to transmit the light emitted by the light source through the optical fiber to the modulation region, where the light interacts with the external parameter to be measured (such as light intensity) in the modulation region, causing a change in the optical properties (such as intensity) of the light. Then, the modulated optical signal is transmitted through the optical fiber to the photodetector for detection and demodulation, so as to obtain the information of the light intensity to be measured. Correspondingly, the modulation region of the light intensity detection optical fiber is used to receive the reflected light from the skin surface layer or the skin inner layer. When the contact portion is in a ring structure, the modulation region of the first light intensity detection unit 230 can be embedded in the contact surface 221 in an arc shape or a ring shape. The incident optical fiber portion and the outgoing optical fiber portion of the first light intensity detection unit 230 can be disposed on the connecting portion 210, while the light source, the photodetector, and the demodulator can be disposed in the handle 100 of the treatment handpiece to improve the space utilization rate of the handle 100 and simplify the structure of the distance gauge.
[0043] In some embodiments, the first light intensity detection unit 230 and / or the second light intensity detection unit 240 can be set as any one of a photodiode, a photomultiplier tube, a photoresistor, and a photocoupler to realize the detection of the illumination intensity of the reflected light.
[0044] To facilitate the installation of the light intensity detection optical fiber, the installation channel can be set as a hole or a groove on the connecting portion 210.
[0045] To improve the accuracy of obtaining the laser absorption coefficient of the skin, as Figures 1 to 4 shown, a temperature detection unit 250 can be provided on the contact surface 221 to detect the skin temperature of the treatment area by using the temperature detection unit 250. When calculating and obtaining the laser absorption coefficient of the skin, the detection data of the temperature detection unit 250 can be combined for calculation and judgment, so as to improve the accuracy and precision of the obtained laser absorption coefficient; in addition, by setting the temperature detection unit 250 on the contact surface 221, compared with the infrared sensor disposed on the handle 100, the detection distance is effectively shortened, the influence of the environment on the detection accuracy is reduced, and the temperature detection accuracy is improved.
[0046] In some embodiments, the temperature detection unit 250 can be set as a temperature detection optical fiber, and the temperature detection optical fiber includes a detection portion, and the detection portion is embedded in the contact surface 221. It should be noted that the temperature detection optical fiber is a prior art and will not be elaborated here. In some embodiments, the temperature detection unit can also be any one of a thermocouple, a thermal resistor, a thermistor, a semiconductor temperature sensor, and an infrared temperature sensor.
[0047] Embodiment 2
[0048] An embodiment of the present application provides a treatment handpiece. As Figure 6 shown, it includes a handle 100 and the above-mentioned distance gauge. The proximal end of the connecting portion 210 is arranged at the distal end of the handle 100, and the proximal end of the connecting portion 210 is connected to the distal end of the handle 100. A laser emitting unit is arranged at the distal end of the handle 100. The light emitting direction of the laser emitting unit is parallel to the axis of the substrate 200. Preferably, the light emitting direction of the laser emitting unit coincides with the axis of the substrate 200. The treatment handpiece is used for performing laser beauty treatment. Preferably, the treatment handpiece is a handpiece of a laser treatment instrument. A laser output module is arranged on the treatment handpiece. The laser output module generates laser light and emits it to the treatment area through the laser emitting unit. An operator holds the treatment handpiece and aligns it with the skin disease area of the patient. By controlling the treatment handpiece to generate laser light and irradiate the skin disease area of the patient, the laser beam penetrates through the epidermis and dermis layers, destroys pigment cells and pigment granules, and the fragments are processed and absorbed by macrophages in the body to achieve beauty treatment.
[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A temperature detection distance gauge, characterized in that: It includes a base with a preset length along the axial direction, the base includes a connecting part and a contact part arranged at the distal end of the connecting part, the distal end of the contact part is provided with a contact surface, the contact surface is provided with a first light intensity detection unit, the first light intensity detection unit is used to detect the light intensity of the light reflected from the inner layer of the skin, a second light intensity detection unit is provided on the inner side wall of the contact part or the connecting part, the second light intensity detection unit is used to detect the light intensity of the light reflected from the surface layer of the skin, and the proximal end of the connecting part is used to connect the handle of the therapeutic handpiece.
2. The distance gauge according to claim 1, characterized in that: The second light intensity detection unit is arranged close to the inner edge of the contact surface.
3. The distance gauge according to claim 1, characterized in that: The first light intensity detection unit is embedded in the contact portion.
4. The distance gauge according to claim 3, characterized in that: The detection surface of the first light intensity detection unit transitions smoothly with the adjacent contact surface, or the detection surface of the first light intensity detection unit and the contact surface are located in the same plane.
5. The distance gauge according to claim 1, characterized in that: A plurality of first light intensity detection units are arranged on the contact surface; And / or, a plurality of second light intensity detection units are arranged on the inner side wall of the contact portion or the connecting portion.
6. The distance gauge according to any one of claims 1 to 5, characterized in that: The first light intensity detection unit and / or the second light intensity detection unit is a light intensity detection optical fiber, and an installation cavity is provided on the connecting portion, and the light intensity detection optical fiber is inserted into the installation cavity.
7. The distance gauge according to claim 6, characterized in that The installation cavity is a hole or a groove on the connecting part.
8. The distance gauge according to any one of claims 1 to 5, characterized in that: A temperature detection unit is arranged on the contact surface.
9. The distance gauge according to claim 8, characterized in that The temperature detection unit is a temperature detection optical fiber, and the temperature detection optical fiber includes a detection part, and the detection part is embedded in the contact surface.
10. A therapeutic hand tool, characterized in that: It comprises a handle and the distance gauge according to any one of claims 1 to 9, wherein the proximal end of the connecting portion and the distal end of the handle are arranged, the distal end of the handle is provided with a laser emitting unit, and the light emitting direction of the laser emitting unit is parallel to the axial direction.