CN113521522B

CN113521522B - Beauty device

Info

Publication number: CN113521522B
Application number: CN202010655489.1A
Authority: CN
Inventors: 山﨑岩男
Original assignee: Ya Man Ltd
Current assignee: Ya Man Ltd
Priority date: 2020-04-22
Filing date: 2020-07-09
Publication date: 2024-01-12
Anticipated expiration: 2040-07-09
Also published as: CN113521522A; JP2021171236A; WO2021215149A1; JP2023115168A

Abstract

The invention provides a cosmetic device. Promote penetration of the medicine and the like into the skin. A cosmetic device (10) is provided with: a 1 st electrode (111) and a 2 nd electrode (112) arranged on the same surface; no 3 rd electrode (113) on the same side; a 1 st generation unit (152) that generates a DC pulse train; a 2 nd generation unit (153) that generates an alternating voltage; and a control unit (151) that alternately repeats, at a predetermined cycle, application of a DC pulse train using at least one of the 1 st electrode and the 2 nd electrode and the 3 rd electrode, and application of the AC voltage using the 1 st electrode and the 2 nd electrode.

Description

Beauty device

Technical Field

The present invention relates to a cosmetic device for applying a voltage to skin.

Background

The following methods are known: by applying a voltage to the skin, pharmaceutical, cosmetic and other substances are allowed to permeate from the skin surface to the inside noninvasively. For example, the following methods are known: by applying a pulse voltage, the structure of the cells is changed, and in particular, by electroporation (electroporation method) in which a polymer is easily introduced or by flowing a weak current, the active ingredient contained in the cosmetic liquid or the like is impregnated after ionization (generally referred to as "iontophoresis").

Patent document 1 describes a method of applying a single pulse or a pulse set in order to efficiently deliver an active ingredient to the dermis layer.

Patent document 1: japanese patent laid-open No. 2013-78514

Although it depends on the molecular weight and other properties (hydrophilicity, ionization tendency, etc.) of a drug or the like, a single pulse train and a pulse group are applied alternately as in patent document 1, and may not be impregnated deep enough. In addition, if an electroporation effect is to be obtained with one extremely short pulse, the applied voltage needs to be set high, which may give a sense of discomfort to the user. In addition, if the interval until the next application of the pulse is long, the "hole" opened in the cell is closed immediately, and the effect is considered to be insufficient.

Disclosure of Invention

The purpose of the present invention is to improve the penetration of a drug or the like into the skin.

The present invention provides, in one embodiment, a cosmetic device having: a 1 st electrode and a 2 nd electrode disposed on the same surface; a 3 rd electrode not located on the same face; a 1 st generation unit that generates a DC pulse train; a 2 nd generation unit that generates an alternating voltage; and a control unit that alternately repeats application of a dc pulse train using at least one of the 1 st electrode and the 2 nd electrode and application of the 3 rd electrode and application of the ac voltage using the 1 st electrode and the 2 nd electrode at a predetermined cycle.

According to the present invention, penetration of a drug or the like into the skin is promoted.

Drawings

Fig. 1 is an external view (front side) of the beauty device 10.

Fig. 2 is an external view (back surface side) of the beauty device 10.

Fig. 3 is a schematic view of the abutment.

Fig. 4 is a functional block diagram of the cosmetic device 10.

Fig. 5 is a diagram showing an example of a waveform of an applied voltage.

Description of the reference numerals

10: a cosmetic device; 111: 1 st electrode; 112: a 2 nd electrode; 113: a 3 rd electrode; 121: a switch; 122: a switch; 190: a housing; 130: a power supply terminal; 160: an external power source; 161: a 1 st power supply circuit; 162: a 2 nd power supply circuit; 163: a 3 rd power supply circuit; 151: a control unit; 152: a DC pulse train generation unit; 153: an alternating current generating unit; 171: a 1 st switching unit; 172: a 2 nd switching unit; 173: a 3 rd switching unit; 174: and 4 th switching part.

Detailed Description

< embodiment >

Fig. 1 is an external view (front side) of the beauty device 10, and fig. 2 is an external view (back side). The cosmetic device 10 is a device having at least the following functions: by applying a voltage, a substance such as a drug or a cosmetic liquid is impregnated from the skin (skin) surface of the user into the inside. That is, the stimulation and warming effect on the muscle can be exerted. The user holds the case 190 with his or her hand, and presses the head provided with the 1 st electrode 111 and the 2 nd electrode 112 against a portion (e.g., the face, but any portion of the user's body may be used as long as the portion is other than the hand holding his or her foot) to which the substance to be impregnated is applied in advance.

The cosmetic device 10 has a substantially circular rod-shaped case 190, and on the surface of the case 190, the 1 st electrode 111, the 2 nd electrode 112, the switch 121, and the switch 122 are provided on the front side, and the 3 rd electrode 113 and the power supply terminal 130 are provided on the back side. The switch 121 and the switch 122 are operated by a user to input commands such as turning on/off of a power supply or setting, executing, interrupting, etc. various actions.

The housing 190 contains a portion to be held by a user (so-called hand-held portion). The 1 st electrode 111 and the 2 nd electrode 112 are portions that come into contact with a portion to which a voltage is to be applied (in other words, to which a substance is to be impregnated). The 1 st electrode 111 and the 2 nd electrode 112 are arranged on substantially the same surface (in other words, the heights (thicknesses) of the 1 st electrode 111 and the 2 nd electrode 112 from the case 190 are substantially equal to each other). Thus, when the head is naturally pressed against the target portion, the 1 st electrode 111 and the 2 nd electrode 112 each form an abutment portion with which the target portion is in contact.

The 3 rd electrode 113 located on the back side of the case 190 is in contact with the hand of the user in the use state. The 3 rd electrode 113 is not necessarily located on the back surface side, and may be provided at a position contacting the hand of the user. The 3 rd electrode 113 is preferably located at a position separate from the 1 st electrode 111 and the 2 nd electrode 112 (i.e., the target site), at least, as long as it is not on the same plane as the 1 st electrode 111 and the 2 nd electrode 112. In fig. 2, the 3 rd electrode 113 is substantially square, but its shape, size, position, and thickness are arbitrary. In short, the 3 rd electrode 113 may function as one of the electrodes for applying a voltage to the user.

The 1 st electrode 111 and the 2 nd electrode 112 are each annular (in this example, are substantially annular), and are concentrically arranged so that the 2 nd electrode 112 is located outside.

Fig. 3 is a schematic view of an enlarged portion of the skin. The widths of the 1 st electrode 111 and the 2 nd electrode 112 are w1, w2, respectively. The 1 st electrode 111 and the 2 nd electrode 112 are arranged on concentric circles with a distance d1 therebetween in the radial direction. Preferably, d1 is 1mm (millimeter) to 3mm, w1=w2=3 mm.

The voltage applying mechanism described in a functional block diagram described later is incorporated in the casing 190.

Fig. 4 is a functional block diagram of the cosmetic device 10. Elements not directly related to the present invention are omitted.

The cosmetic device 10 includes a power supply 160, a 1 st power supply circuit 161, a 2 nd power supply circuit 162, a 3 rd power supply circuit 163, a dc pulse train generating unit 152, an ac generating unit 153, a 1 st electrode 111, a 2 nd electrode 112, a 3 rd electrode 113, a 1 st switching unit 171, a 2 nd switching unit 172, a 3 rd switching unit 173, and a 4 th switching unit 174.

The power supply 160 is a battery that accumulates electric power supplied via the power supply terminal 130.

The power supplied from the power supply 160 is distributed to the 1 st power supply circuit 161, the 2 nd power supply circuit 162, and the 3 rd power supply circuit 163. The 1 st power supply circuit 161, the 2 nd power supply circuit 162, and the 3 rd power supply circuit 163 include a rectifier circuit, a circuit for modulating amplitude, frequency, phase, and the like, and convert input electric signals into electric signals suitable for operating the control unit 151, the dc pulse train generation unit 152, and the ac generation unit 153, respectively, and output the electric signals.

The dc pulse train generating unit 152 generates a dc (unipolar) pulse train based on S1 supplied from the control unit 151, and supplies the dc pulse train to the 3 rd electrode 113, the 1 st switching unit 171, and the 2 nd switching unit 172.

The ac generator 153 generates an ac voltage according to S2 supplied from the controller 151, and supplies the ac voltage to the 3 rd switching unit 173 and the 4 th switching unit 174.

The 1 st to 4 th switching units 171 to 174 selectively apply the dc pulse train and the ac voltage to the 1 st electrode 111, the 2 nd electrode 112, and the 3 rd electrode 113, respectively, in response to control signals supplied from the control unit 151.

Specifically, the 1 st switching unit 171 applies the voltage supplied from the dc pulse train generating unit 152 to the 1 st electrode 111 in accordance with S3 supplied from the control unit 151. The 2 nd switching unit 172 applies the voltage supplied from the dc pulse train generating unit 152 to the 2 nd electrode 112 according to S4 supplied from the control unit 151. The 3 rd switching unit 173 applies the voltage supplied from the ac generating unit 153 to the 1 st electrode 111 according to S5 supplied from the control unit 151. The 4 th switching unit 174 applies the voltage supplied from the ac generating unit 153 to the 2 nd electrode 112 according to S6 supplied from the control unit 151.

That is, the dc pulse train generated by the dc pulse train generating unit 152 is applied with the 1 st electrode 111 and the 2 nd electrode 112 as a common (equipotential) one electrode and the 3 rd electrode 113 as the other electrode. The ac voltage generated by the ac generator 153 is applied with the 1 st electrode 111 as a positive electrode (or negative electrode) and the 2 nd electrode 112 as a negative electrode (or positive electrode).

In the present specification, the term "dc pulse train" refers to a waveform having a sharp peak, and includes a waveform formed by regularly repeating a unipolar arbitrary waveform (for example, a rectangular wave or a triangular wave). In the present specification, "ac" means not only a sine wave but also other waveforms as long as it is bipolar.

The control unit 151 generates control signals S1 to S6 and outputs the control signals to the dc pulse train generating unit 152, the ac generating unit 153, and the 1 st to 4 th switching units 171 to 174 so that the above-described dc pulse train application and ac application are alternately repeated at a predetermined cycle.

Specifically, the control unit 151 maintains the 1 st state in which the dc pulse train is applied only during the 1 st period by setting the control signals S1, S3, and S4 to on signals and on signals, and sets the control signals S2, S5, and S6 to off signals, and then maintains the 2 nd state in which the ac is applied during the 2 nd period by setting the control signals S1, S3, and S4 to off signals and on signals to S2, S5, and S6, and then repeats the operation. In addition, when a dc pulse train is applied, either one of the 1 st electrode 111 and the 2 nd electrode 112 may function as a positive electrode or a negative electrode, and the other may be insulated.

Preferably, the control unit 151, the dc pulse train generating unit 152, and the ac generating unit 153 are mounted as signal processors or modules having a function of generating arbitrary waveforms. However, the functions of the control unit 151, the dc pulse train generating unit 152, the ac generating unit 153, the 1 st switching unit 171, the 2 nd switching unit 172, the 3 rd switching unit 173, and the 4 th switching unit 174 may be realized by relays or switching elements that are independent of each other and that are used to switch between a circuit for applying a dc pulse train and a circuit for applying an ac voltage. A contactless relay using a semiconductor such as MOSEFT is preferably used.

Fig. 5 is a schematic diagram of an example waveform of an applied voltage. The horizontal axis represents time, and the vertical axis represents voltage (amplitude). For convenience of explanation, the scale in the vertical and horizontal directions is different from the actual value. In this example, the voltage V1, the rectangular dc pulse train, and then the ac voltage of the sinusoidal waveform of the amplitude V2 and the frequency F2 are continuously applied over the entire application period T1 at the repetition frequency F1, and immediately thereafter the voltage V1, the rectangular dc pulse train, and the ac voltage of the predetermined waveform profile are continuously applied again over the entire application period T1 at the repetition frequency F1, in such a manner that the dc pulse train of the predetermined waveform profile and the ac voltage of the predetermined waveform profile are repeatedly applied.

Here, the application periods T1 and T2 are, for example, 0.1 to 10 seconds, and preferably 3 to 6 seconds, respectively. The application periods T1 and T2 may be different, but from the viewpoints of the penetration effect and the feeling of the user, the inventors found that the application periods T1 and T2 are preferably 0.5 < T1/T2 < 2, and most preferably t1=t2.

The (repetition) frequency F is preferably F1 < F2, more preferably f1=1 kHz (kilohertz) to 3kHz (repetition period is 0.3ms to 1 ms), f2=70 kHz to 300kHz (period is 3 μs to 14 μs). The applied voltage is preferably V1 < V2, more preferably v1=10v (volts), v2=50v to 300V.

The values of (amplitude of) the applied voltage, the applied period, and the frequency (repetition frequency) are examples, and can be set in consideration of the molecular weight and other properties of the chemical to be impregnated, the resistance value of the skin of the user, the sense of body (including discomfort) given to the user, and other purposes (the purpose of obtaining a warming effect, the purpose of giving a muscle vibration), and the like.

The present inventors have found that, as in the above-described embodiment, by regularly repeating the application of voltages having two different waveforms, such as a dc pulse train and an ac voltage, it is possible to coexist the electroporation effect generated by the application of the dc pulse train and the so-called iontophoresis effect caused by the application of the ac voltage. This is considered to be because the hole is not closed immediately by applying a pulse train for a predetermined period, but by applying an ac voltage for a predetermined period, the open state is maintained, and the substance is efficiently moved. In a preferred embodiment, since the dc pulse train is applied for the entire period of several seconds, it is sufficient to obtain the electroporation effect with a voltage lower than that of the single pulse. This reduces the burden (discomfort and the like) on the user.

In addition, according to the electrode arrangement and the voltage application method of the above-described embodiment, among the three electrodes, the electrode used is switched with switching of the applied voltage. That is, in view of discomfort to the user when the ac voltage is applied, it is preferable to use the 1 st electrode 111 and the 2 nd electrode 112 which are relatively close to each other as the electrode pair, while in the case of applying the dc pulse train, the 1 st electrode 111 (and the 2 nd electrode 112) and the 3 rd electrode 113 which are relatively far from each other at a distance suitable for applying the dc are used as the electrode pair. At this time, by functioning the 1 st electrode 111 and the 2 nd electrode 112 as one electrode, the effective area of the electrode increases, and as a result, the permeation effect of the chemical increases.

Further, by switching between the dc pulse train and the ac voltage using a contactless relay such as a semiconductor element, switching can be performed more quickly than in the case of using hardware. In a preferred embodiment, switching is performed at a frequency of several seconds intervals, but in the case of using an element for switching, it is expected that a load will be applied to the element, whereas in the case of using a contactless relay, there is no such concern, and durability and reliability of the device are improved.

< other embodiments >

The 1 st electrode 111 and the 2 nd electrode 112 may not be perfect circles, but may be oval or tear-drop type (raindrop type), polygonal, rectangular, and any other annular shape. For example, a protrusion may be formed on the outer or inner peripheral surface of the annular ring. In other words, annular refers to any pattern having a hollow portion. However, the distance between the electrodes is preferably as constant as possible. Further, another ring electrode may be provided on the inner side of the 1 st electrode 111 or the outer side of the 2 nd electrode 112. The 1 st electrode 111 may have a non-hollow shape such as a circular plate. Alternatively, the following structure may be adopted: the 1 st electrode 111 and the 2 nd electrode 112 are not each a ring, and may be, for example, two semicircular rings separated from each other as a group or four quarter circular rings separated from each other as a group, and thus considered as a ring shape as a whole.

In other words, the beauty device of the present invention may include a 1 st electrode and a 2 nd electrode arranged on the same surface, a 3 rd electrode not on the same surface, a 1 st generation means for generating a 1 st waveform voltage (for example, a dc pulse train voltage), a 2 nd generation means for generating a 2 nd waveform voltage (for example, an ac voltage), and a control means for alternately repeating, at a predetermined cycle, application of the 1 st waveform voltage using at least one of the 1 st electrode and the 2 nd electrode and application of the 3 rd waveform voltage using the 1 st electrode and the 2 nd electrode.

Claims

1. A cosmetic device, comprising:

a 1 st electrode and a 2 nd electrode disposed on the same surface;

a 3 rd electrode not located on the same face;

a 1 st generation unit that generates a DC pulse train;

a 2 nd generation unit that generates an alternating voltage; and

a control unit configured to alternately repeat application of a direct current pulse train using at least one of the 1 st electrode and the 2 nd electrode and the 3 rd electrode and application of the alternating current voltage using the 1 st electrode and the 2 nd electrode at a predetermined cycle,

the cosmetic device has a portion abutting the skin and a hand-held portion,

the 1 st electrode and the 2 nd electrode are respectively arranged at the contact part which is contacted with the skin and are in a ring shape,

the 3 rd electrode is disposed at the hand-held portion,

applying the alternating voltage using the 1 st electrode and the 2 nd electrode as a positive electrode and a negative electrode, respectively, in a state where the 3 rd electrode is insulated,

the dc pulse train is applied using the 3 rd electrode as one electrode and the 1 st electrode and the 2 nd electrode as the other electrode.

2. The cosmetic device of claim 1, wherein,

the cosmetic device has a switching unit that selectively supplies the DC pulse train and the AC voltage to the 1 st electrode, the 2 nd electrode, and the 3 rd electrode,

the control unit performs switching between the dc pulse train and the ac voltage by supplying a control signal to the 1 st generation unit, the 2 nd generation unit, and the switching unit.

3. The cosmetic device of claim 1, wherein,

the repetition frequency of the DC pulse train is 1 kHz-3 kHz,

the frequency of the alternating voltage is 70 kHz-300 kHz.

4. The cosmetic device of claim 1, wherein,

the length of the period during which the dc pulse train is applied is substantially the same as the length of the period during which the ac voltage is applied.

5. The cosmetic device of claim 1, wherein,

the length of the period of application of the dc pulse train and the length of the period of application of the ac voltage are 3 seconds to 6 seconds, respectively.