10 results about "Dark skin" patented technology

Existing pulse oximeters have impaired accuracy in measuring blood oxygen levels (SpO2) in patients of color, where the presence of melanin in the skin tends to interfere with measurements of pulse oximetry, resulting in an overestimation of SpO2. Thus, the pulse oximeter often reports a higher oxygen saturation for patients with darker skin tones, often with increasing bias as the actual saturation (SaO2) decreases. This bias is further reinforced by calibration based on individuals with light skin pigmentation, which may lead to inequitable healthcare for patients of color. Our proposed solution is to modify current pulse oximetry calculations—which utilize the relative tissue absorbance of red and infrared light to estimate SpO2—to account for the concentration of melanin by additionally measuring the skin absorbance of UV˜A light. This derived concentration of melanin can then be used to modify the pulse oximetry algorithm output, thus estimating SpO2 more accurately for patients of color.

The invention provides efficient mild whitening cream and a preparation method thereof. The raw materials of the cream comprise five phases A and E, the phase C contains 0.1-3% of a mixed solution of isosorbide dimethyl ether and hydroxyl pinacolone retinoate, and the phase D contains 0.01-0.1% of L-carnitine. Wherein the hydroxyl pinacolone retinoate can be specifically combined with an RAR / RXR (Region Receptor / Receptor X Receptor), and the expression of an MITF (Microphthalmia-associated Transcription Factor) gene is reduced, so that the melanogenesis is inhibited; l-carnitine promotes fatty acid beta-oxidation and enhances ATP synthesis to indirectly regulate and control AMPK activity; aMPK enhances transcriptional activity of a tretinoin receptor through phosphorylation of the tretinoin receptor, so that the AMPK and hydroxyl pinacolone retinoate exert a synergistic effect, jointly enhance whitening activity, effectively improve the phenomena of color spots and dark skin and promote the skin color to be uniform, bright and white; meanwhile, the isosorbide dimethyl ether can promote the transdermal absorption of the hydroxyl pinacolone retinoate, the L-carnitine and the related active ingredients.

The invention discloses a cosmetic composition with blue light resistance and multiple skin protection effects and application of the cosmetic composition. Comprising the following components: water, butanediol, glycerol, nicotinamide, erythritol, hexanediol, p-hydroxyacetophenone, alpha-arbutin, tranexamic acid, glycosylglycerol, carbomer, hydrolyzed collagen, a ganoderma lucidum extract, allantoin, euglena tiny polysaccharide, carnosine and 3-o-ethyl ascorbic acid. The synergistic relationship of various active ingredients in blue light-induced injury is researched, and it is found for the first time that the cosmetic composition has remarkable effects in the aspects of reducing blue light-induced oxidation pressure, relieving chromatosis, improving skin barrier stability and improving dark skin color; the cosmetic composition is used for preparing cosmetics with the effects of resisting blue light, whitening and brightening, and shielding and repairing, and can effectively resist blue light damage and improve the comprehensive state of skin.

The application relates to the technical field of ceramics, and discloses a skin glaze, dark skin glaze ceramic tiles and a preparation method thereof. The skin glaze can effectively expand the glaze melting temperature range, stabilize high-temperature viscosity, inhibit excessive glaze layer flow during the firing stage, avoid physical disturbance to the ink form, and significantly improve the problems of pattern edge blur, ink scattering, color phase unevenness and the like through the synergistic effect of SrO and ZnO; meanwhile, the SrO and ZnO synergistically control the glaze melt crystal precipitation behavior, optimize the microcrystal distribution and surface flatness, thereby improving the smooth and delicate touch of the glaze surface, eliminating defects such as bright spots, dull spots, roughness and dryness, and guaranteeing the appearance and texture stability of the skin glaze. In addition, the skin glaze further introduces B2O3, which can be used as a low-temperature fluxing agent to reduce the glaze melt viscosity, improve the leveling property, reduce defects such as pinholes, glaze shrinkage and corrugation, and improve the glaze layer density, and B2O3 can also synergistically stabilize the high-temperature viscosity with ZnO and SrO, optimize the ink color development environment, and improve the satin gloss feeling and gloss stability of the glaze surface.

The invention discloses a dynamic epidermis cooling and segmented pulse cooperation method. The method comprises the following steps: A, preprocessing and baseline measurement; b, pre-cooling; c, performing segmented pulse packet irradiation; d, intermediate cooling; e, post-cooling; f, closed-loop control; g, zoning dose and path planning; and H, data recording and safety interlocking. Through the full-period dynamic cooling strategy of pre-cooling, intermediate cooling and post-cooling and in combination with closed-loop temperature control, the peak temperature of the skin can be reduced by 5-30 DEG C, and the skin burn occurrence rate is reduced from 8%-12% in the prior art to lt; 1%; meanwhile, according to personalized parameter adaptation of different skin types, the epidermis injury risk difference of II-V type skin type patients is reduced to lt; and the problem of low safety of deep skin type treatment is solved.

The application provides a face image skin color unification method, device, equipment and readable storage medium, relates to the technical field of image processing, and comprises the following steps: obtaining an original image to be unified in skin color; extracting the original image to obtain a mask image; preprocessing the mask image to obtain a preprocessed image; performing histogram statistical analysis on the preprocessed image to obtain data information of the analyzed histogram; and performing probability density function calculation on the data information to obtain a processing result of face image skin color unification. The application has the beneficial effect that the skin color unification algorithm can be used to conveniently and accurately unify the skin color of an intelligent face image, improve the efficiency of skin color unification of a refined picture, meet the intelligent and simple requirements of users for skin color unification, and improve the problem of dark skin color, make the skin even and natural, and meet the requirements of customers for skin color refinement.

The invention relates to a whitening composition for preventing and reversing oxidation-saccharification-carbonylation triple damage and a preparation method and application thereof, and belongs to the technical field of cosmetics. The method is based on an anti-oxidation-saccharification-carbonylation triple pathway synergistic strategy, and comprises the following steps: firstly, synergistically playing an anti-oxidation role by utilizing quercetin and ergothioneine; secondly, creatively finding that the inositol has an anti-saccharification effect in the skin, so that the inositol and the carnosine synergistically exert the anti-saccharification effect; and finally, by utilizing the camellia extract, carbonyl toxins can be removed, an anti-carbonylation effect can be played, the activity of GPX-4 can be improved, and the oxidation resistance is further enhanced, so that the problem that the skin is dark, yellow and black is effectively solved through multiple paths, and the whitening effect is enhanced. Besides, by adopting a functional mixed solvent composed of PPG-13-decyl tetradecanol polyether-24 and polyethylene glycol in a specific proportion, the problem that quercetin is poor in water solubility or is not soluble in water is solved, and the composition is clear, transparent, stable and resistant to storage.

The invention relates to a multi-target synergistic composition based on yeast / rice fermentation product filtrate, nonapeptide-1 and green tea extract and application thereof.The composition comprises the yeast / rice fermentation product filtrate, the nonapeptide-1 and the green tea extract, the mass ratio of the yeast / rice fermentation product filtrate to the nonapeptide-1 to the green tea extract is (0.1-5): (0.01-2): (0.1-5), and the multi-target synergistic composition is applied to cosmetics. According to the composition, a three-dimensional synergistic effect network of rhythm regulation, damage repair and oxidation protection is constructed through scientific proportioning of saccharomycetes / rice fermentation product filtrate, nonapeptide-1 and a green tea extract. Compared with the prior art, the traditional Chinese medicine composition has the advantages of synergistic effect of various components, adjustment of circadian rhythm, repair of skin injury, improvement of dry, loose and dark skin and the like.

The invention discloses microcirculation promoting essential oil based on carbonic acid hot spring extract and a preparation method, and the essential oil comprises the following components by mass: 10%-30% of carbonic acid hot spring extract, 50%-70% of plant essential oil base oil, 4%-7% of a liquid crystal forming agent, 1%-3% of a fragrance glowing matrix, 1%-2% of an anti-aging brightening unit, 0.1%-0.5% of a tip penetration enhancer, and 0.5%-2% of an antioxidant, the carbonated hot spring extract is carbonated spring liquid encapsulated by microcapsules and contains dissolved carbon dioxide gas and mineral ions of calcium, magnesium and sodium. According to the microcirculation promoting essential oil based on the carbonic acid hot spring extract, microencapsulation and liquid crystal structure technologies are adopted, it is ensured that CO can stably exist in an essential oil matrix for a long time, barrier repairing and active matter conveying are enhanced, slow release and transdermal absorption of active matter are optimized, CO2 and mineral ions can more easily and directly reach a capillary region, and the microcirculation promoting essential oil is more beneficial to improving the microcirculation promoting effect of the carbonic acid hot spring extract. The skin metabolism is promoted, and the problems of dark skin color and local tissue fluid accumulation caused by unsmooth circulation are solved.

The invention belongs to the technical field of medical detection equipment, and particularly relates to a device and method for correcting skin color influence in a blood oxygen saturation detection result, and the device comprises a blood oxygen detection module, a skin color detection module, a central processing module and a display module; the blood oxygen detection module comprises a first light source and a signal receiving tube; the skin color detection module comprises a second light source, a color sensor and a real-time image acquisition unit; the central processing module is electrically connected with the blood oxygen detection module and the skin color detection module. And the display module is electrically connected with the central processing module and is used for displaying a result of the central processing module. Compared with the prior art, by combining real-time skin color parameters collected by the skin color detection module and utilizing a dynamic correction algorithm of the central processing module, the measurement result is compensated, interference of skin color differences on optical detection is eliminated, the influence of the skin color differences on the blood oxygen measurement result is eliminated, and the blood oxygen saturation degree detection precision of a patient with dark skin is improved.