44 results about "Dermal exposure" patented technology

This application is directed to a method of treating a patient with acne by applying a photodynamic agent to skin having acne lesions, waiting at least 12 hours, and then exposing the skin to which the photodynamic agent has been applied to light that causes an activation reaction.

Provided are a product to reduce and a method of reducing the risk of inhalation of harmful substances by applying a formulation composition to a substrate or the skin in close proximity of one or more nostrils. This formulation, when applied creates an electrostatic field having a charge. The electrostatic field attracts airborne particulates of opposite charge to the substrate that are in close proximity to the substrate close to the skin and a biocidic agent renders microorganisms coming in contact the substrate or skin less harmful.

The patent of the invention belongs to the technical field of atomizers, and specifically relates to an anti-clogging safety and economical atomizer, which specifically includes a pressurized atomizing nozzle and a constant pressure water supply system. In the anti-clogging safety and economical atomizer of the present invention, the water flow in the pressurized atomizing nozzle is ejected from the annular hole, and the annular hole has a larger area than the hole-shaped or linear nozzle, and has the effect of increasing the water pressure of the nozzle. Therefore, it is not easy to be blocked; the water flow sprayed from the annular hole hits the reflector and baffle twice at high speed, changing from droplets to mist-like particles, and the atomization effect is good, which can reduce the amount of spray per unit area and reduce the waste of liquid medicine; It does not need the operator to carry the burden, which avoids the personal injury caused by the contact between the liquid and the skin in the process of spraying the liquid. The constant pressure water supply system can achieve constant pressure in the atomizer nozzle and stable atomization effect; the atomizer is supplied by the water pump. , and pressurized by the pressurized atomizing nozzle, the spray width is large and the working efficiency is high.

The invention discloses a Gastrodia elata mask milk and an ultrasonic preparation method thereof. The invention processes Gastrodia elata through enzymatic hydrolysis, and the obtained enzymolysis liquid has many components and strong activity, and can well preserve the components and curative effect of Gastrodia elata; The present invention also uses various microorganisms to ferment the enzymatic solution to obtain a large amount of amino acids, sugars, and hydroxyl-containing small molecular substances; finally, cellulose acetate phthalate is added, and the cellulose acetate phthalate dissolves under alkali Afterwards, it is fully mixed with the fermented liquid, and it has a good film-forming effect after drying, and can form a network structure, so that small molecular substances are distributed in the network, and after contacting with the skin, it can penetrate into the skin evenly and play a role. Good curative effect is obtained, and the comfort of this product is increased simultaneously; a kind of definite curative effect can be obtained through the above steps, comfort is good, and the preparation method is simple and controllable, and the preparation method of Gastrodia elata mask milk suitable for industrialization.

The invention relates to the technical field of medical equipment, in particular to a dermatological blackhead acne cleaning device and a method of use. It is located inside the installation cylinder, and the other end of the driving rod is fixedly provided with a pressure block; the first connecting spring is sleeved on the upper end part of the driving rod located on the fixed plate, and one end of the first connecting spring is fixedly arranged on the pressure block, The other end of the first connecting spring is fixedly arranged on the fixed plate; the cleaning mechanism is arranged inside the installation cylinder, and the cleaning mechanism is used for cleaning blackheads; and the skin around the nose can be dried before cleaning, so that the During the subsequent application process, the oily secretions on the nose will not block the drug, so that the drug can better contact the skin on the nose, thereby improving the subsequent cleaning effect of blackheads and acne.

Disclosed is a method of determination of a pollution protection factor (PPF) of a cosmetic composition, comprising: (a) a step of testing, by any known test method, the ability (alpha) of the cosmetic composition to render ineffective at least one type of pollutant present on the skin and expressing it on a scale of 0 to 1, followed by calculating said PPF by equation A, where (1 - alpha) indicates corresponding potential residual damage to the skin wherein said composition comprises at least one ingredient known to render ineffective said at least one type of pollutant and said at least one ingredient is an anti-inflammatory or antioxidant; or alternatively, (b) a step of testing, by any known test method, the ability (beta) of the cosmetic composition to inhibit the contact of at least one type of pollutant with skin and expressing it also on a scale of 0 to 1, followed by calculating said PPF by equation B, where (1 - beta) indicates corresponding potential residual damage to the skin wherein said composition comprises at least one ingredient known to inhibit the contact of at least one type of pollutant with skin and wherein said ingredient is a sunscreen, a barrier enhancer or a polymer; or further alternatively, (c) a step of testing, by any known test method, the ability (gamma) of the cosmetic composition to remove at least one type of pollutant present on the skin, expressing it also on a scale of 0 to 1, followed by calculating said PPF by equation C, where (1 - gamma) indicates corresponding potential residual damage to the skin.