Skin cosmetic device and method with multiple light sources acting in synergy

Abstract

The application discloses a skin cosmetic method based on pulsed laser, comprising the following steps: S1, obtaining epidermal pigment distribution, dermal collagen density, wrinkle depth and abnormal vascular area through a spectrum confocal microscope and a VISIA skin analyzer; S2, performing epidermal pretreatment by using intense pulsed light, selecting a 500-600 nm or 600-1200 nm wave band according to the skin problem type, an energy density of 8-25 J / cm2 and a pulse width of 2-10 ms; S3, starting deep treatment of pulsed laser after 15-60 s interval; S4, monitoring blood oxygen saturation and melanin index of skin tissue in real time by using a spectrum reflectometer during treatment, and dynamically adjusting light source energy and pulse interval; S5, promoting epidermal repair by using a cold compress gel containing hyaluronic acid in cooperation with an ultrasonic introduction instrument after treatment; and S6, regularly performing curative effect evaluation. The application generates a personalized scheme through multi-dimensional skin detection, utilizes IPL to pretreat epidermal pigment and vascular problems, combines 755 nm / 1064 nm pulsed laser to stimulate collagen regeneration in a deep layer, and realizes collaborative treatment of the epidermis-dermis layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical cosmetology equipment, in particular to a skin cosmetology device and method with multiple light sources in synergistic action. BACKGROUND

[0002] In the field of skin anti-wrinkle and anti-aging medical cosmetology, the current mainstream photoelectric devices are mainly radio frequency and ultrasonic technology. Radio frequency devices rely on electrodes to generate heat and act on the dermis layer of the skin, usually with a depth of less than 5mm; ultrasonic technology uses ultrasonic waves to generate heat and mainly acts on the fascia layer.

[0003] Intense pulsed light (IPL) therapy acts on the epidermis layer through a wide spectrum (500-1200nm) and has good selective destructive effect on pigment particles and abnormal blood vessels, but has limited collagen stimulation ability in the dermis layer; traditional pulsed lasers (such as 1064nm and 755nm) can penetrate the dermis layer to stimulate photothermal effect, but when used alone, the risk of epidermal damage is high, and the comprehensive improvement effect on complex skin problems, such as pigment and aging combined problems, is insufficient. SUMMARY

[0004] In view of the above shortcomings of the prior art, the present application provides a skin cosmetology device and method with multiple light sources in synergistic action to achieve combined treatment to solve multi-dimensional skin problems.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme: a skin cosmetology device with multiple light sources in synergistic action, characterized in that it comprises:

[0006] An intense pulsed light module, which integrates a 500-1200nm wide spectrum light source and is configured with replaceable optical filters, with a pulse energy density adjustment range of 8-25J / cm² and a pulse width of 2-10ms;

[0007] A pulsed laser module, which includes a 755nm solid laser with a pulse width of 50-200ns and a repetition frequency of 10-100Hz, and a 1064nm Nd:YAG laser with a pulse width of 1ms-10ms and an energy density of 10-40J / cm², which are coupled by a dichroic mirror and a focusing lens group with an accuracy of ±0.5mm;

[0008] A contact cooling system: a semiconductor refrigeration piece is integrated at the front end of the treatment head, and cooperates with a sapphire light guide window to cool the treatment area in real time.

[0009] A multi-modal sensor group, which includes a spectral reflectance sensor, a pressure sensor and a temperature sensor, for real-time collection of physiological parameters of the treatment area;

[0010] The BP neural network model, based on the collected physiological parameters, inputs skin type, treatment site and problem type, and outputs the optimal energy ratio of intense pulsed light and pulsed laser and treatment timing.

[0011] Further, the pulsed laser module spot diameter is 3-8mm.

[0012] The application also provides a method for skin beautifying device using the above-mentioned multi-light source synergy, comprising the following steps:

[0013] S1, the epidermal pigment distribution, dermal collagen density, wrinkle depth and abnormal vascular area are acquired by the spectral confocal microscope and VISIA skin analyzer;

[0014] S2, according to the skin problem type, the intense pulsed light module selects 500-600nm or 600-1200nm waveband, sets the energy density to 8-25J / cm², the pulse width to 2-10ms, and carries out real-time cooling through the contact cooling system;

[0015] S3, after 15-60s interval, the pulsed laser module is controlled to start;

[0016] S4, the blood oxygen saturation and melanin index of the skin tissue are monitored in real time by the spectral reflectometer, and the light source energy and pulse interval are dynamically adjusted.

[0017] Further, the energy ratio of the intense pulsed light and the pulsed laser is dynamically adjusted according to the Fitzpatrick skin type, and the laser energy of type III-IV skin is reduced by 10%-20% compared with type I-II.

[0018] Further, the focusing depth of the pulsed laser is adjusted according to the dermal thickness, and the adjustment accuracy is ±0.5mm, and the layered treatment of 0.5-5mm depth is carried out.

[0019] Further, for the aging problem, 1064nm laser is adopted, the pulse width is 1-10ms, and the energy density is 20-30J / cm².

[0020] Further, when 755nm laser is adopted for the pigment problem, the pulse width is 50-200ns, and the energy density is 8-15J / cm².

[0021] In summary, the application has the following beneficial effects:

[0022] (1) The IPL of the application solves the epidermal pigment and blood vessel problems, the pulsed laser activates the deep layer collagen regeneration, realizes the dual effects of "epidermal renewal-dermal remodeling", and the clinical effective rate is increased by 30% compared with single therapy.

[0023] (2) Real-time monitoring of skin response through multi-modal sensors, dynamic adjustment of dual light source parameters combined with AI algorithm, reducing the risk of epidermal thermal damage by 60% (compared with traditional fixed parameter mode).

[0024] (3) Generating differentiated solutions based on skin detection data, adapting to different skin types and complex skin problems. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be described below in a clear and complete manner. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0026] Embodiment 1:

[0027] The embodiment provides a skin beauty device based on pulsed laser, comprising:

[0028] The intense pulsed light module integrates a 500-1200 nm wide spectrum light source and is configured with replaceable optical filters, with a pulse energy density adjustment range of 8-25 J / cm² and a pulse width of 2-10 ms.

[0029] The pulsed laser module includes a 755 nm solid laser with a pulse width of 50-200 ns and a repetition frequency of 10-100 Hz, and a 1064 nm Nd:YAG laser with a pulse width of 1 ms-10 ms and an energy density of 10-40 J / cm². The light path is coupled through a dichroic mirror, and the focusing lens group has an accuracy of ±0.5 mm. The dichroic mirror has a reflectivity of >95% for 755 nm laser and a transmittance of >90% for 1064 nm laser.

[0030] The contact cooling system integrates semiconductor refrigeration pieces at the front end of the treatment head and cooperates with sapphire light guide windows to cool the treatment area in real time, with a skin temperature control of ≤35°C.

[0031] Further comprising:

[0032] The multi-modal sensor group includes a spectral reflectance sensor, a pressure sensor, and a temperature sensor, which real-time collect physiological parameters of the treatment area.

[0033] The BP neural network model inputs skin type, treatment site, and problem type based on the collected physiological parameters, and outputs the optimal energy ratio of intense pulsed light and pulsed laser and the treatment timing.

[0034] The spot diameter of the pulsed laser module is 3-8 mm.

[0035] Example 2:

[0036] The method of the skin cosmetic device of the multi-light source synergy in Example 1 is adopted in this embodiment, which comprises the following steps:

[0037] S1, obtain the epidermal pigment distribution, dermal collagen density, wrinkle depth and abnormal blood vessel area by the spectral confocal microscope and VISIA skin analyzer; for example, the spectral confocal microscope has a resolution of ≤5 μm, and detects the epidermal pigment distribution and dermal collagen density, and the VISIA skin analyzer is combined to obtain the wrinkle depth (0-4 levels), abnormal blood vessel area (red area) and other parameters.

[0038] S2, select the 500-600 nm or 600-1200 nm wave band according to the skin problem type, the energy density is 8-25 J / cm², and the pulse width is 2-10 ms.

[0039] Among them, 755 nm laser is used for pigment problem, 1064 nm laser is used for aging problem, pulse width is 1-10 ms, and energy density is 20-30 J / cm²; when 755 nm laser is used for pigment problem, pulse width is 50-200 ns, and energy density is 8-15 J / cm².

[0040] For example, for pigment dominant type, such as chloasma, epidermal pretreatment is carried out by using strong pulse laser (560 nm filter, energy density 12-18 J / cm², pulse number 3-5, pulse width 3-6 ms); interval 30-60 s, short pulse laser (755 nm, pulse width 50-100 ns, energy density 8-15 J / cm²) is used for deep pigment explosion.

[0041] For aging dominant type, such as wrinkle relaxation, long pulse laser (1064 nm, pulse width 1-10 ms, energy density 20-30 J / cm²) is used for dermal heat stimulation, interval 15-30 s, strong pulse laser (590 nm filter, energy density 15-22 J / cm²) is used for epidermal photoaging repair.

[0042] S3, start the pulse laser after an interval of 15-60 s.

[0043] S4, real-time monitor the blood oxygen saturation and melanin index of the skin tissue by the spectral reflectometer, and dynamically adjust the energy of the light source and the pulse interval.

[0044] The energy ratio of the strong pulse light and the pulse laser is dynamically adjusted according to the Fitzpatrick skin type, and the laser energy of type III-IV skin is reduced by 10%-20% compared with type I-II skin.

[0045] The energy of the pulsed laser is dynamically adjusted according to Fitzpatrick skin type, and the pulsed laser energy of type III-IV skin is reduced by 10%-20% compared with type I-II skin.

[0046] The focusing depth of the pulsed laser is adjusted according to the dermal thickness, with an adjustment accuracy of ±0.5 mm, and the depth of 0.5-5 mm is treated in layers to realize the layered treatment from the epidermis to the deep dermis.

[0047] When the 1064 nm laser is used for aging, the pulse width is 1-10 ms, and the energy density is 20-30 J / cm², and the 1064 nm laser is used to excite the thermal denaturation of dermal collagen.

[0048] When the 755 nm laser is used for pigmentation, the pulse width is 50-200 ns, and the energy density is 8-15 J / cm², and the 755 nm laser is used to break the deep pigment mass.

[0049] Dual-source synergistic treatment process

[0050] Intense pulsed laser epidermis pretreatment: Intense pulsed light is focused to the epidermis layer (depth 0.1-0.5 mm) through the filtering system (500-600 nm / 600-1200 nm dual-band optional), and the pigment particles (diameter <50 μm) are broken through photothermal decomposition effect, and at the same time, the abnormal capillary vessels (tube diameter >30 μm) are closed. The contact cooling device (-5~10℃) is built in the treatment head, and the risk of epidermal thermal damage is reduced synchronously.

[0051] Pulsed laser deep treatment: The focusing depth of the laser is adjusted according to the skin thickness (0.5-5 mm), the 1064 nm laser (energy density gradient 15-30 J / cm²) excites the thermal denaturation of dermal layer hydroprotein, and starts the collagen remodeling mechanism; the 755 nm laser (spot diameter 3-8 mm, repetition frequency 10-50 Hz) breaks the deep pigment mass (diameter >50 μm) through photoacoustic effect (sound pressure peak value 0.5-1.2 MPa), and at the same time, activates fibroblast proliferation.

[0052] Dynamic feedback regulation: During treatment, the changes of blood oxygen saturation (SpO2) and melanin index (MI) of skin tissue are monitored in real time through the spectral reflectometer, when the MI fluctuation exceeds the preset threshold value (±15%), the laser energy (±10%) and IPL pulse interval (±10 ms) are automatically adjusted.

[0053] Immediately after treatment, a cold compress gel containing hyaluronic acid (concentration 0.8-1.2%) is introduced.

[0054] In summary, the application realizes the synergistic effect of pigment improvement, collagen regeneration and skin structure remodeling by double light source time sequence coupling, energy dynamic proportioning and epidermis-dermis layered treatment, and solves the problems of insufficient comprehensive effect and rough parameter adjustment in the prior art.

[0055] The above merely describes preferred embodiments of the present application, but the present application is not limited thereto, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A skin beauty device with multi-light source synergy, characterized in that, include: A high-intensity pulsed light module, which integrates a 500-1200nm wide-spectrum light source and is equipped with replaceable filters, with a pulse energy density adjustment range of 8-25J / cm² and a pulse width of 2-10ms; The pulsed laser module includes a 755nm solid-state laser with a pulse width of 50-200ns and a repetition frequency of 10-100Hz; and a 1064nm Nd:YAG laser with a pulse width of 1ms-10ms and an energy density of 10-40J / cm². Optical path coupling is achieved through a dichroic mirror, and the focusing lens group has an accuracy of ±0.5mm. The contact cooling system integrates a semiconductor cooling chip at the front end of the treatment head, along with a sapphire light guide window, to cool the treatment area in real time. A multimodal sensor array, comprising a spectral reflectance sensor, a pressure sensor, and a temperature sensor, for real-time acquisition of physiological parameters of the treatment area; The BP neural network model, based on collected physiological parameters, takes into account skin type, treatment site, and problem type, and outputs the optimal energy ratio of intense pulsed light and pulsed laser, as well as the treatment sequence.

2. The skin beauty device with multi-light source synergy according to claim 1, characterized in that, The pulsed laser module has a spot diameter of 3-8 mm.

3. A method for using the multi-light source synergistic effect skin rejuvenation device as described in claim 1 or 2, characterized in that, Includes the following steps: S1. Spectroscopic confocal microscope and VISIA skin analyzer were used to obtain epidermal pigment distribution, dermal collagen density, wrinkle depth, and abnormal vascular areas. S2. Select the 500-600nm or 600-1200nm wavelength band for the high pulse light module according to the type of skin problem, set the energy density to 8-25J / cm², the pulse width to 2-10ms, and cool it in real time through a contact cooling system. S3. After an interval of 15-60 seconds, control the start of the drive pulse laser module; S4. Real-time monitoring of skin tissue's blood oxygen saturation and melanin index using a spectral reflectometer, dynamically adjusting light source energy and pulse interval.

4. The method of the skin beauty device employing the synergistic effect of multiple light sources according to claim 3, characterized in that, The energy ratio of intense pulsed light to pulsed laser is dynamically adjusted according to Fitzpatrick skin type, with laser energy for type III-IV skin reduced by 10%-20% compared to type I-II.

5. The method of the skin beauty device employing the synergistic effect of multiple light sources according to claim 3, characterized in that, The focusing depth of the pulsed laser is 0.5-5mm, with an adjustment accuracy of ±0.5mm.

6. The method of the skin beauty device employing the synergistic effect of multiple light sources according to claim 3, characterized in that, To address the aging problem, a 1064nm laser is used, with a pulse width of 1-10ms and an energy density of 20-30J / cm².

7. The method of the skin beauty device employing the synergistic effect of multiple light sources according to claim 6, characterized in that, When using a 755nm laser to address pigmentation issues, the pulse width is 50-200ns and the energy density is 8-15J / cm².