DE102008009461A1 - Reducing the wrinkle, comprises applying a cosmetic preparation on the skin to be treated and subsequently working up by means of an ultrasonic applicator - Google Patents

Abstract

Reducing the wrinkle, comprises applying a cosmetic preparation on the skin to be treated and subsequently working up by means of an ultrasonic applicator. Independent claims are included for: (1) a process for increasing the wrinkle reduction comprising applying the cosmetic preparation on the contact area (10) of the ultrasonic applicators, reacting the contact area in oscillation with a ultrasonic generator (11) and subsequently treating the skin to be treated by the oscillating contact area; and (2) a cosmetic kit comprising the ultrasonic applicator and the cosmetic preparation. ACTIVITY : Dermatological. MECHANISM OF ACTION : None given.

Description

The The invention relates to a method for reducing signs of aging of the skin, in particular for the alleviation and prevention of wrinkles and Mimic wrinkles and skin smoothing and improvement the surface structure, characterized in that a cosmetic preparation is applied to the skin to be treated and then with the help of an ultrasound applicator is incorporated into the skin to be smoothed or that one cosmetic preparation applied an ultrasonic applicator the ultrasound applicator is started and that too then treated skin using the ultrasound applicator is treated with ultrasound, the cosmetic preparation at least skin-smoothing agent in both methods contains.

cosmetic Preparations which, after application to the skin, have a smoothing effect of the skin (wrinkle reduction), there are many. Especially It is widely used in the art, cosmetic preparations to enrich with so-called skin smoothing agents, as these promise a reduction in wrinkle depth.

The Wrinkle reducing performance of the preparations with a single application but is not enough in wrinkled skin to a noticeable and persistent Wrinkle reduction over a longer period too receive. Only repeated application creates relief.

When Ultrasound refers to sound waves above the human Hearing threshold, with frequencies between 20 kHz and 1 GHz. The transition of these sound waves from the ultrasound exciter in solids or liquids only happens when the sound waves radiated in close proximity or a coupling medium adapted acoustic properties as well as certain thickness in between.

In Liquids spreads ultrasound to a certain extent Intensity low attenuation. From a limit However, it comes to the formation of vapor bubbles (cavitation), which when they collapse, extremely high pressures and temperatures can cause. This effect is for example for Ultrasonic cleaning exploited.

to Generation of ultrasound are dynamic and electrostatic Loudspeakers and in particular piezo loudspeakers, d. H. membrane-coupled Pieces of piezoelectric ceramic, which by reversing the piezo effect be excited to vibrate. By means of piezoelectric plastics (PVDF) can also be controlled directly membranes, resulting in an improved transmission behavior causes.

The use of ultrasound for imaging has been known for a long time. Here, ultrasound with a frequency of 1 to 40 MHz and low intensity, usually by 100 mW / cm ² , irradiated into the body and measured the reflection of the sound waves. Due to the different densities of the fabric, an image can be derived from the reflection pattern. This procedure is called sonography. Ultrasound of higher energy is used for ultrasound therapy, which causes an acceleration of self-healing processes, because by means of the introduced ultrasound can be specifically generated heat inside the body.

From the WO 2005/004972 It is already known to incorporate cosmetic agents in the skin by means of ultrasound. However, it works with a very high frequency of 3 to 10 MHz. However, these high frequencies have the consequence that sensitive active substances are degraded by the registered frequency and thus caused cavitation.

For the skilled artisan was unexpected in that using an ultrasonic applicator, having an ultrasonic source having a frequency of below 3 MHZ, the incorporation of cosmetic preparations, which counteract the signs of aging, a considerable produce stronger effects against signs of aging, without which the active ingredients are destroyed and better than if it is worked in normally with the fingers / hands.

Under the 'action against the signs of aging' are made by the expert in particular the mitigation and prevention of wrinkles and Mimic wrinkles and skin smoothing and improvement subsumes the surface structure or skin smoothing.

In particular, preparations are advantageous, the at least one skin-smoothing active ingredient from the group of plant extracts, especially cherry blossom extract, ginger extract, anise extract, niacinamide, vitamin C and its derivatives, vitamin E and its derivatives, ubiquinone (especially Q10), ubiquinol, retinyl palmitate, ursolic acid, natural oils, especially grapeseed oil, evening primrose oil, almond oil, palmitoyl oligopeptides, palmitoyl tetrapeptide, magnesium aspartate, zinc, copper gluconate, madecassoside, sodium hyaluronate, Salicylic acid, calcium, carotenoids (especially lycopene) and their derivatives, lipoic acid and derivatives thereof, α-hydroxy acids (especially citric acid, lactic acid, malic acid), unsaturated fatty acids and their derivatives (in particular γ-linolenic acid, linoleic acid, oleic acid), folic acid and derivatives thereof , Flavonoids, polyphenols, catechins, vitamin C and derivatives (especially ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate), lignans, stilbenes. Ebeso are preparations, the derivatives, in particular salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids, the aforementioned active substances contain according to the invention.

preparations For the purposes of the invention are in particular emulsions, in addition to a Water phase also contain an oil phase. The advantage of Emulsions is that the sliding properties are significantly better than in purely aqueous preparations. The skin is thereby much less irritated (irritated) than in the known cleaning or microabrasion treatment. The with the inventive Method results are not on closer inspection comparable though the apparent consideration of the treated Skin areas do not necessarily show a difference. The invention Procedure affects by its increased wrinkle reduction on the lower lying house layers (connective tissue) and not like the state of the art on the top dead cell layer. Dar inventive Process thus shows a longer-lasting effect which, with regular use in a general Rejuvenation of the skin reflects. A regular Microdermabrasion treatment is due to the strong irritant effect not feasible and would become one cause prolonged damage, as with removal the dead skin cells would have lost their own protective effect.

The Preparations contain according to the invention except the above-mentioned substances optionally the usual in cosmetics Additives, for example perfume, dyes, antimicrobial Substances, moisturizing agents, complexing and sequestering agents, Pearlescent agents, plant extracts, vitamins, active ingredients, preservatives, Bactericides, pigments that have a coloring effect, Thickener, softening, moisturizing and / or moisturizing Substances, or other common ingredients of a cosmetic or dermatological formulation such as alcohols, polyols, polymers, Foam stabilizers, electrolytes, organic solvents or silicone derivatives.

According to the invention The ultrasonic applicators on an ultrasonic source, the one flat or slightly curved support surface (contact surface) have, which is vibrated by the Ulltraschallerreger and the contract with the application area on the body manufactures. In the method according to the invention is the bearing surface (contact surface) with the cosmetic Wets the preparation and then under ultrasound excitation applied on the skin or the cosmetic preparation is made the skin applied and then with the ultrasound-excited Support surface incorporated into the skin.

Of the Ultrasonic applicator has an ultrasonic exciter, the z. B. is powered by a battery or accumulator. It is also in the context of the invention, alternative electroless drive units to use, for. B. spring drives or spring lifts. For the purpose of According to the invention, as an ultrasonic generator, it is piezoelectric quartz or ceramic oscillator, to which an AC voltage with their natural resonance frequency (or a harmonic thereof) is created. The surface of the ultrasound generator itself can form the contact surface or the ultrasonic generator generated vibrations are on a coupling medium transfer the contact surface of the applicator. It is beneficial if the surface of the contact surface is smooth, in particular polished, anodized or chrome-plated. rough or structured surfaces are abbrasiv, so have an exfoliating effect, which in particular embodiments may be desired.

It is advantageous according to the invention if the frequency of the ultrasound is between 0.05 and 2.8 MHz, in particular 0.8 to 1.2 MHz, the emitted energy being not higher than 1000 mW / cm ² . Energy densities of 250 to 700 mW / cm ² , in particular 300 to 500 mW / cm ² , have proven to be particularly advantageous.

Preferably, the contact surface is completely connected to the housing of the ultrasonic applicator, so that a cleaning, in particular a cleaning under running water, is easily possible or at least splash-proof. It is particularly preferred if the contact surface is seamlessly and / or seamlessly connected to the housing. This can be achieved in that the contact surface is injection-molded by injection molding, in particular by two- or multi-component injection molding, during the production process becomes.

Advantageous it is when the ultrasound applicator hermetically sealed is, that is a jet-waterproof housing and / or stainless, in particular metal-free, to design is, so that z. As well as a cleaning in a washing machine and / or Dishwasher is possible.

For Applications in the facial area have contact surfaces with a diameter of 15 to 50 mm, in particular 25 to 35 mm proved to be advantageous. For applications on the body, z. B. thighs and buttocks, have contact surfaces with a diameter of 30 to 90 mm, in particular 50 to 90 mm as proved advantageous.

Around To improve the lubricity, it has proved to be beneficial proven to design the contact surface without sharp edges, z. B. taken or rounded or concave.

Also brings the interchangeability of the contact surface the advantage that depending on the application area contact surfaces of different Size or shape with the same ultrasound can be used.

In In this case, the connection must be from contact surface and ultrasound be designed so that the ultrasonic vibrations transmitted to the contact surface become. It is advantageous if the contract area with the ultrasonic exciter is locked. Also conceivable is a connection in the form of a Velcro or reversible bonding is trained.

Out ergonomic reasons, especially the warranty a good accessibility of all parts of the body and the Possibility of one-handed use with constant Plane resting the contact surface on the skin, has become an angling of the contact surface to the gripping surface at an angle of 85 to 165 ° proved to be advantageous.

at Another embodiment of the invention makes it possible the cosmetic preparation directly at the contact surface from the applicator. For this purpose, the applicator has a container (Reservoir) for the preparation, the output the preparation from the container through a conduit system, which opens next to the contact surface possible is. Advantageously, the dosage of the cosmetic preparation by means of pressure (eg container is filled with gas or spring pressure charged and emanating amount manually or automatically operated valve) or suction (eg manually or automatically operated pump, in particular diaphragm pump) he follows.

Prefers The applicator is designed so that the reservoir refillable or interchangeable.

In the 1 to 3 some contact surface geometries are shown schematically, which have been found to be particularly advantageous. However, these examples are not intended to limit the invention, but to clarify which scope for design exists.

1 shows an example of a contact surface as it is suitable for large-scale application to larger areas of the skin, such as thighs, hips, buttocks, abdomen, back. This is a circular contact area of 25 to 90 mm in diameter (d ₁ ). The contact surface has a flat and smooth surface (section AA). However, it would also be conceivable to form the contact surface slightly convex, so that better gliding over the skin is achieved.

2 schematically shows a contact surface as it is preferred for use in the face or other 'angular' body areas can be used. The contact surface in this case has an elliptical surface geometry and is more convex (section BB), so that an application in the region of the eye or the nose part is easily possible. In particular, it is also possible with this form specifically to stimulate wrinkles and crow's feet.

3 schematically shows a contact surface which is a mixture of the in 1 and 2 illustrated forms. Due to the 'teardrop-shaped' design of the scope both a large-scale application and a targeted application is possible. In the area of the large circumference A, this contact surface is almost planar. In the direction of the small circle circumference B, the convexity increases continuously, so that with this area the possibility of targeted stimulation like that of in 2 shown contact surface there.

4 1 schematically shows the structure of a device for carrying out the method according to the invention, comprising a contact surface (FIG. 10 ) and an ultrasonic generator ( 11 ). The ultrasound generator is powered by a battery-powered vibration generator ( 12 ), the power supply of the power source ( 14 ) can be controlled via the switch ( 13 ) Taxes. The connection of contact surface and ultrasound generator via a coupling medium ( 16 ). As a power source, for example, battery (s) or accumulator (s) are used. The contact area ( 10 ) is slightly rounded in this embodiment at the edge and seamless (see enlarged detail 4b) in the housing ( 15 ) integrated. Example of a preparation according to the invention for the reduction of wrinkles and facial lines, skin smoothing 1. Wt .-% cetearylglucoside 2 myristate 1 stearyl 4 C _12-15 alkyl benzoate 2 Caprylic / capric 3 Hydrogenated polydecene 1 dicaprylyl 3 polydecene 4 ethylhexylmethoxycinnamate 5 Ethylhexylcyanodiphenyl acrylate (octocrylene) 3 butylmethoxydibenzoylmethane 2 anise extract 0.5 Ubiquinone (Q10) 0.05 folic acid 12:03 Trisodium EDTA 0.1 Polyvinylpyrrolidone-hexadecene copolymer 0.4 p-Hydroxybenzoic acid alkyl ester (paraben) 0.4 Ethylhexylglycerin 0.4 Xanthan gum 0.1 carrageenan 0.1 Aluminum starch octenylsuccinate 1 glycerin 6 butylene 2 Additives (talc, BHT, dye) 1 Perfume qs water ad 100

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• WO 2005/004972 [0008]

Claims (16)

A method of wrinkle reduction, characterized in that a cosmetic preparation is applied to the skin to be treated and then incorporated with the aid of an ultrasonic applicator in the skin to be treated. Method of increasing wrinkle reduction, thereby characterized in that a cosmetic preparation on the contact surface an ultrasonic applicator is applied, the contact surface is vibrated by means of an ultrasonic generator and then the skin to be treated with the help of the vibrating Contact surface is treated. Method according to at least one of the preceding Claims, characterized in that the cosmetic Prepare at least one substance from the skin smoothing group Contains active ingredients. Method according to at least one of the preceding Claims, characterized in that the cosmetic Preparation of an emulsion, in particular a W / O or O / W emulsions, is Method according to at least one of the preceding Claims, characterized in that the contact surface is convex. Method according to at least one of the preceding Claims, characterized in that the ultrasonic generator a frequency of 0.05 to 2.8 MHz, preferably 0.8 to 1.2 MHz transfers the contact surface. Method according to at least one of the preceding claims, characterized in that the contact surface transmits an energy output of <1000 mW / cm ² , preferably 250 to 700 mW / cm ² , very preferably 300 to 500 mW / cm ² . Method according to at least one of the preceding Claims, characterized in that the contact surface seamless and / or seamless in the housing of the applicator is integrated. Method according to at least one of the preceding Claims, characterized in that the applicator identifies a reservoir for the cosmetic preparation, whose outlet opens in the area of the contact surface. Method according to claim 9, characterized that the output of the cosmetic preparation from the reservoir manually or automatically controlled, preferably over a pump or action of pressure on the reservoir. Method according to claim 10, characterized in that that the reservoir is replaceable and / or refillable. Method according to at least one of the preceding Claims, characterized in that the at least one Part of the bristles has a length between 0.4 and 1.5 cm. Use of ultrasound for incorporation of cosmetic preparations into the skin, characterized that the cosmetic preparation contains at least one substance from the Group of skin contains smoothing agents. Use of ultrasound in conjunction with a cosmetic preparation for wrinkle reduction of the skin. Method or use according to at least one of the preceding claims, characterized in that the skin regeneration-activating, skin-smoothing active ingredients are selected from the group of plant extracts, in particular cherry blossom extract, ginger extract, anise extract, niacinamide, vitamin C and its derivatives, vitamin E and its derivatives, ubiquinone (especially Q10), ubiquinol, retinyl palmitate, ursolic acid, natural oils, especially grapeseed oil, evening primrose oil, almond oil, palmitoyl oligopeptides, palmitoyl tetra peptide, magnesium aspartate, zinc, copper gluconate, madecassosides, sodium hyaluronate, salicylic acid, calcium, carotenoids (especially lycopene) and their derivatives , Lipoic acid and its derivatives, α-hydroxy acids (especially citric acid, lactic acid, malic acid), unsaturated fatty acids and their derivatives (in particular γ-linolenic acid, linoleic acid, oleic acid), folic acid and derivatives thereof, flavonoids, polyphenols, catechols, vitamin C and derivatives (in particular ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate), lignans, stilbenes and derivatives, in particular salts, esters , Ethers, sugars, nucleotides, nucleosides, peptides and lipids, the aforementioned active ingredients. Cosmetic kit, including an ultrasound applicator and a cosmetic preparation, characterized in that the Cosmetic preparation at least one skin-smoothing Contains active ingredient.