CN114949592A - Flexible iontophoresis cosmetic device - Google Patents

Abstract

The present invention provides a flexible ion introduction cosmetic device, including: a flexible substrate layer, one side of which is provided with a micro-channel; the pair of flexible electrodes are oppositely attached to one side of the flexible substrate layer, which is far away from the micro-channel, and a power supply is connected between the pair of flexible electrodes; and the porous membrane is fixed on one side of the flexible substrate layer, which is provided with the micro flow channel, in a bonding mode. The flexible ion-introduction beautifying device disclosed by the invention has good skin adhesion and simple manufacture, can greatly save the using amount of skin care products, and can be directly applied to the skin for working.

Description

Flexible iontophoresis cosmetic device

technical field

The invention relates to the technical field of microfluidics, in particular to a flexible iontophoresis cosmetic device.

Background technique

Iontophoresis is a method of infiltrating charged drugs or active ingredients into the skin by means of electric repulsion by flowing a microcurrent through the skin, so as to improve the absorption of substances in the skin. There are non-invasive delivery methods that more aggressively increase drug penetration.

At present, iontophoresis beauty instruments on the market apply drugs or skin care products on the skin surface, and then promote the absorption of charged ions by changing the electrical environment on the skin surface. This method has the situation of waste of dosage and inaccurate supply. On the other hand, the current portable iontophoresis instruments on the market need to be hand-held and cannot be hands-free.

SUMMARY OF THE INVENTION

The present invention provides a flexible iontophoresis beauty device, which is used to solve the defects in the prior art that the dosage of drugs or skin care products is wasted, the supply is inaccurate, the hand-held operation is required, and the hands cannot be freed. Simple, it can greatly save the amount of skin care products, and it can be applied directly to the skin to work.

The present invention provides a flexible iontophoresis cosmetic device, comprising:

The flexible base layer is constructed with micro-channels on one side;

A pair of flexible electrodes is relatively attached to the side of the flexible base layer away from the micro-channel, and a power supply is connected between the pair of flexible electrodes;

The porous membrane is fixed on the side of the flexible base layer where the micro-channel is provided by bonding.

According to an embodiment of the present invention, the flexible base layer is an insulating material.

According to an embodiment of the present invention, the shape of the micro-flow channel is fabricated on the flexible base layer based on a soft lithography technique or a laser cutting technique, and the micro-flow channel is obtained based on a flexible material injection molding method.

According to one embodiment of the present invention, the flexible base layer includes polydimethylsiloxane or polyethylene terephthalate.

According to an embodiment of the present invention, the flexible electrodes include nano-gold electrodes, nano-silver electrodes or metal gallium and alloys thereof that are liquid at room temperature.

According to an embodiment of the present invention, the flexible electrode is a plate-type electrode, and a pair of the plate-type electrodes are symmetrically distributed on the flexible base layer above the microfluidic channel.

According to an embodiment of the present invention, the porous film comprises a polydimethylsiloxane porous film or a polycarbonate film obtained by adding micron-sized sugar particles and sacrificing sugar.

According to an embodiment of the present invention, the manufacturing method of the polydimethylsiloxane porous film includes:

S11: Grind sugar to micron-sized particles;

S12: further screen out sugar particles with particles below 30 μm;

S13: Mix the sugar particles obtained in S12, the polydimethylsiloxane curing agent and the polydimethylsiloxane base agent according to the set mass ratio;

S14: After uniform mixing and vacuuming, based on the spinning film process, a mixed film of the required thickness is produced;

S15: After ultrasonic cleaning for a set time, sugar particles are removed to form the polydimethylsiloxane porous film.

According to an embodiment of the present invention, the microfluidic channel is formed with an inlet and an outlet, and skin care products are injected into the microfluidic channel.

According to an embodiment of the present invention, the inlet and/or the outlet of the microfluidic channel is provided with a liquid storage unit.

The present invention provides a flexible iontophoresis cosmetic device. The micro-channel and flexible electrodes are arranged on the flexible base layer, and a porous membrane is arranged to fit with the micro-channel of the flexible base layer; the micro-channel is injected with skin care ingredients Under the action of an external electric field, the ions penetrate into the skin through the thin porous membrane, and the external electric field promotes the electric repulsion motion of positive and negative ions in the skin to promote the skin's absorption of skin care products. The flexible iontophoresis beauty device of this embodiment has good fit to the skin, frees hands, is simple to manufacture, and can greatly save the consumption of skin care products.

Description of drawings

In order to explain the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are the For some embodiments of the invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the longitudinal sectional schematic diagram of the flexible iontophoresis cosmetic device provided by the present invention;

2 is a schematic flowchart of a manufacturing method of a porous membrane in a flexible iontophoresis cosmetic device provided by the present invention;

3 is a schematic diagram of an embodiment of a microfluidic channel in the flexible iontophoresis cosmetic device provided by the present invention;

FIG. 4 is a schematic diagram of another embodiment of the microfluidic channel in the flexible iontophoresis cosmetic device provided by the present invention;

5 is a schematic diagram of still another embodiment of a micro-channel in the flexible iontophoresis cosmetic device provided by the present invention;

Reference number:

1: Porous membrane; 2: Flexible base layer; 3: Flexible electrode;

4: microchannel; 5: skin.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The flexible iontophoresis cosmetic device of the present invention will be described below with reference to FIGS. 1 to 5 .

The present invention provides a flexible iontophoresis cosmetic device, as shown in FIG. 1 , comprising a flexible base layer 2 , a flexible electrode 3 and a porous membrane 1 .

Specifically, the flexible base layer 2 is flat, and one side of the flexible base layer 2 is configured with a microfluidic channel 4 .

A pair of flexible electrodes 3 are relatively attached to the side of the flexible base layer 2 away from the microfluidic channel 4 , that is, a pair of flexible electrodes 3 and microfluidic channels 4 are located on opposite sides of the flexible base layer 2 respectively. side. A power source is connected between a pair of the flexible electrodes 3. In order to facilitate the connection between the pair of flexible electrodes 3 and the power source, lead wires are provided at the ends of the pair of flexible electrodes 3. In this embodiment, the material of the wires is not specified. The constraints can be copper, silver, gold, aluminum, etc.

The porous membrane 1 is fixed on the side of the flexible base layer 2 where the micro-channel 4 is provided by means of bonding. The outer side of the porous membrane 1 is used to stick to the skin 5 , and the skin care product in the microchannel 4 flows into the porous membrane 1 through the electric repulsion of the external electric field, and promotes the skin 5 to absorb the active ingredients in the skin care product. The flexible iontophoresis beauty device of this embodiment has good fit with the skin 5, frees hands, is simple to manufacture, and can greatly save the consumption of skin care products.

According to an embodiment of the present invention, the flexible base layer 2 is an insulating material, and the flexible base layer 2 includes but is not limited to polydimethylsiloxane.

According to an embodiment of the present invention, the shape of the micro-channel 4 is fabricated on the flexible base layer 2 based on a soft lithography technique or a laser cutting technology, and the micro-channel 4 is obtained based on a flexible material inversion method, Specifically, a mold is first made, and then a flexible base material is poured, so as to form a micro-flow channel 4 on the flexible base material. The micro-flow channel 4 is formed in a simple and reliable manner.

According to one embodiment of the present invention, the flexible base layer includes polydimethylsiloxane or polyethylene terephthalate.

According to an embodiment of the present invention, the flexible electrode 3 includes nano-gold electrodes, nano-silver electrodes or metal gallium and alloys thereof that are liquid at room temperature.

If the flexible electrode 3 is made of liquid metal gallium and its alloy, it is obtained by infusion.

If the flexible electrode 3 adopts nano-gold electrode or nano-silver electrode, it can be obtained by depositing nano-gold or nano-silver.

According to an embodiment of the present invention, the flexible electrodes 3 are plate electrodes, and a pair of the plate electrodes are symmetrically distributed on the flexible base layer 2 above the microchannels 4 . In order to facilitate the arrangement of a pair of flexible electrodes 3 on the flexible base layer 2, the flexible base layer 2 can be arranged in a structure with a concave opening, and the pair of flexible electrodes 3 are arranged in the concave opening, which can play a stable and flexible manner. The role of electrode 3.

According to an embodiment of the present invention, the porous film 1 includes a polydimethylsiloxane porous film or a polycarbonate film obtained by adding micron-sized sugar particles and sacrificing sugar. Using other flexible porous membrane 1 materials on this basis still falls within the protection scope of the present invention.

According to an embodiment of the present invention, as shown in FIG. 2 , the manufacturing method of the polydimethylsiloxane porous film includes:

S11: Use a ball mill to grind the sugar to micron-sized particles, and a small ball mill from Tianchuang can be used, and the running time is 10 minutes or more to obtain sugar containing micron-sized particles;

S12: Use a 500-mesh sieve to screen out powdered sugar, and further screen out sugar particles with particles below 30 μm;

S13: Mix the sugar particles obtained in S12, the polydimethylsiloxane curing agent and the polydimethylsiloxane base agent according to the set mass ratio; wherein, sugar particles: polydimethylsiloxane=1 :4;

S14: After uniform mixing and vacuuming, based on the spinning film process, a mixed film of the required thickness is produced; specifically, a film with a thickness of 5 μm can be obtained at a spinning film speed of 5000 rpm;

S15: Remove sugar particles after ultrasonic cleaning for a set time to form the polydimethylsiloxane porous film, which can be ultrasonically cleaned in an ultrasonic cleaning machine for more than 30 minutes to remove sugar particles to obtain the required polydimethylsiloxane Oxane porous film.

The micro flow channel 4 in this embodiment can have various forms, for example, it can be a straight flow channel shown in FIG. 3 , a curved flow channel shown in FIG. 4 , or a zigzag flow channel shown in FIG. 5 . road. 4 and 5 are both deformed on the basis of FIG. 3 , in order to increase the contact area between the microchannel 4 and the skin 5 , so as to obtain a better absorption effect.

Of course, the shape of the flow channel proposed above is only schematic, and the matching flow channel shape and arrangement can be obtained according to the actual use situation.

According to an embodiment of the present invention, the micro-channel 4 is a non-hermetic structure, the micro-channel 4 is formed with an inlet and an outlet, and skin care products containing ionic components are injected from the inlet, so that the micro-channel 4 is filled with skin care products, while excess skin care products flow out of the outlet.

According to an embodiment of the present invention, in order to replenish skin care products in a timely manner during the use of the flexible iontophoresis cosmetic device, a liquid storage unit is provided at the inlet and/or the outlet of the microchannel 4, and the liquid storage unit may be a storage unit. Liquid bag, for example, the liquid storage bag is connected to the inlet through a small pipeline, and the opening of the liquid storage bag is initially closed. When skin care products need to be replenished, the liquid storage bag can be squeezed to make the opening of the liquid storage bag open. , so as to communicate with the inlet to continue to replenish skin care products into the micro-channel 4 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A flexible iontophoretic cosmetic device, comprising:

a flexible substrate layer, one side of which is provided with a micro-channel;

the pair of flexible electrodes are oppositely attached to one side of the flexible substrate layer, which is far away from the micro-channel, and a power supply is connected between the pair of flexible electrodes;

and the porous membrane is fixed on one side of the flexible substrate layer, which is provided with the micro-channel, in a bonding mode.

2. The flexible iontophoretic cosmetic device of claim 1, wherein the flexible substrate layer is an insulating material.

3. The flexible iontophoresis cosmetic device according to claim 1, wherein the shape of the micro flow channel is formed on the flexible substrate layer based on a soft lithography technique or a laser cutting technique, and the micro flow channel is obtained based on a flexible material reverse molding method.

4. The flexible iontophoretic cosmetic device of claim 1, wherein the flexible substrate layer comprises polydimethylsiloxane or polyethylene terephthalate.

5. The flexible iontophoresis cosmetic device according to claim 1, wherein the flexible electrode comprises a nanogold electrode, a nanosilver electrode, or gallium metal that is liquid at room temperature and an alloy thereof.

6. The flexible iontophoresis cosmetic device according to any one of claims 1 to 5, wherein the flexible electrodes are plate-type electrodes, and a pair of the plate-type electrodes are symmetrically distributed on the flexible substrate layer above the microchannel.

7. The flexible iontophoresis cosmetic device of claim 1, wherein the porous membrane comprises a polydimethylsiloxane porous membrane or a polycarbonate membrane obtained by adding micron-sized sugar particles and then sacrificing the sugar.

8. The flexible iontophoresis cosmetic device according to claim 7, wherein the method of making the porous polydimethylsiloxane membrane comprises:

s11: grinding the sugar to micron-sized particles;

s12: further screening sugar particles with particle size of below 30 μm;

s13: mixing the sugar particles obtained in the step S12, a polydimethylsiloxane curing agent and a polydimethylsiloxane base agent according to a set mass ratio;

s14: uniformly mixing and vacuumizing, and then manufacturing a mixed film with a required thickness based on a film spinning process;

s15: and removing sugar particles after ultrasonic cleaning for a set time to form the polydimethylsiloxane porous film.

9. The flexible iontophoresis cosmetic device according to claim 1, wherein the micro flow channel is formed with an inlet and an outlet, and a skin care product is injected into the micro flow channel.

10. The flexible iontophoresis cosmetic device according to claim 9, wherein an inlet and/or an outlet of the microchannel is provided with a reservoir unit.

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