JP2000236932A - Electronic comb - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prompt the head skin to absorb medicine by configuring a biological cell among a positive electrode, a negative electrode, the medicine, and a user body so that the medicine is penetrated into the head skin by an iontophoresis effect. SOLUTION: A negative electrode 4 is housed crossing over a base member 1 and a holder part 2, and a positive electrode 5 is fitted in a recess part at the center of the base member 1. One end of the negative electrode 4 is directly connected to the positive electrode 5, and the other end of the negative electrode 4 is extended to the end of the holder part 2. The positive electrode 5 is brought into contact with a medicine soaked pad 6, and is electrically connected to head skin through the pad 6. Thus, a biological cell is configured among the negative electrode 4, the positive electrode 5, and a user's hand and head skin, and an iontophoresis effect prompts the medicine to be penetrated into the head skin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair comb which can promote the absorption of a drug into the skin by the action of iontophoresis.

[0002]

2. Description of the Related Art Conventionally, hair protection and hair growth have been carried out by spraying or applying a drug containing an active ingredient to the head and making the drug penetrate into the subcutaneous tissue from the surface of the scalp using diffusion by concentration gradient. Has been done by However, such drugs are generally high molecular compounds and often have a complicated tertiary structure, and diffusion by a concentration gradient alone does not allow an effective concentration of the drug to reach the subcutaneous tissue. I can't get it.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to overcome such disadvantages in the prior art, and promotes the absorption of a drug into the inside of the scalp by the iontophoresis effect of a biological battery. An object of the present invention is to provide a hair combing device to be obtained (hereinafter referred to as an electronic hair combing device).

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention relates to a hair comb for achieving application of a drug to the scalp, wherein a brush or a comb for combing hair is implanted. A base provided, and a negative electrode made of a conductive material having at least a surface having a standard electrode potential higher than that of the negative electrode portion and a conductive material having at least a surface having a standard electrode potential lower than that of the positive electrode portion It comprises one or more biological battery elements comprising a part, and further comprises, if necessary, a grip part extending from the base, wherein in the biological battery element, the positive electrode part and the negative electrode part are electrically connected. Connected, at least one of the positive electrode portion and the negative electrode portion is exposed on the base and / or the brush or comb teeth so that at least a part thereof can come into contact with the drug attached to the hair of the user. It is provided In the case where only one of the positive electrode portion or the negative electrode portion is provided so as to be able to come into contact with the drug, the other positive electrode portion or the negative electrode portion at least partially contacts the user's hand during use. The base and / or the gripping portion are provided so as to be exposed, and in use, the positive electrode portion and the negative electrode portion constitute a biological battery together with a drug and a user's body, and the drug is formed by iontophoresis. A hair comb that penetrates into the scalp is provided.

The present invention is an application of a biological battery formed when two kinds of electrodes having a difference in standard electrode potential are brought into contact with a living body. This biological battery is known and is applied to a shoulder stiffness treatment tool and the like. The principle of the biological battery is described in, for example, JP-A-8-173554.

[0006] "Iontophoresis" means that a drug component is caused to migrate into the skin by applying a voltage to the skin and a charged drug component in contact with the skin.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a top view showing an embodiment of the electronic hair combing device according to the present invention, and FIG. 2 is a sectional view of the electronic hair combing device of FIG. 1 taken along line II in FIG. FIG.

The electronic hair combing device of this embodiment has a brush portion in which a row of brushes 3 for combing hair are planted in parallel on a base 1 and a grip portion 2 extending from the base 1. , The base 1
, The negative electrode 4 wrapped inside the grip portion 2, the positive electrode 5 fitted in a recess provided in the center of the base 1, and the drug impregnation embedded on the positive electrode 5. It consists of a pad 6.

The brush 3 is a brush used for a normal hair comb, and may be animal hair, plastic, synthetic fiber, or the like.

The negative electrode 4 is a conductive substance having a lower standard electrode potential than the positive electrode 5. One end thereof extends to a concave portion located at the center of the base portion 1 and directly contacts the positive electrode 5 fitted in the concave portion. The other end of the negative electrode 4 extends to the protruding end of the grip portion 2. The negative electrode 4 has a surface exposed on the side surface of the grip portion 2, and therefore, when the grip portion 2 is gripped, the negative electrode 4 is also gripped.

The positive electrode 5 is a conductive material having a higher standard electrode potential than the negative electrode 4. Since the positive electrode 5 is in contact with the drug-impregnated pad 6, the positive electrode 5 is electrically connected to the scalp via the drug-impregnated pad 6 when the electronic hair comb is used in a desired mode.

If the electronic hair comb of the present embodiment is used in a normal manner, the negative electrode 4 and the positive electrode 5 are simultaneously in contact with the user's hand and scalp, respectively, and the two electrodes are in direct contact as described above. Both poles are energized through the human body. As described above, in the electronic hair comb device of the present embodiment, the negative electrode 4 and the positive electrode 5 together constitute one biological battery element.

The drug impregnated pad 6 is impregnated with a drug to be applied to the scalp. The drug impregnated pad 6 is a positive electrode 5
Embedded on the substrate, the drug-impregnated pad becomes part of the electrical circuit and is loaded with voltage.

The conductive material used for the negative electrode 4 can be any conductive material having a lower standard unipolar potential than the conductive material used for the positive electrode 5. Conductive materials include metals and their alloys, and semiconductors. When an n-type semiconductor is used, a salt is not deposited on the electrode and current is supplied stably. Therefore, it is preferable to use an n-type semiconductor as the conductive substance. The n-type semiconductor includes, but is not limited to, metal oxide semiconductors such as zinc oxide, tin oxide, indium oxide, and antimony oxide.

The conductive material used for the positive electrode 5 is preferably any metal or alloy thereof that is hardly subjected to a chemical change and has a high standard electrode potential, and gold is particularly preferable.

The drug impregnated in the drug-impregnated pad 6 is absorbed into the human body by the iontophoresis effect of the voltage of the biocell device. Therefore, the agent to be impregnated into the pad must be at least ionized in the pad.

When the drug has an ionizable group, it is necessary to adjust the pH in the pad so that the drug is charged. If the drug does not have an ionizable group, the pad must contain a substance that can bind to the drug and introduce charge into the drug. Substances that can introduce a charge into a drug can include various surfactants.

The molecular weight of the drug is preferably 50,000 Da or less, more preferably 10,000 Da or less, and most preferably 50,000 Da.
0 Da or less. Therefore, drugs that can be used in the electronic hair comb of the present invention also include polymers such as peptides, proteins, and polysaccharides.

The drug-impregnated pad 6 can be any member capable of absorbing and holding the drug. Such members include, but are not limited to, sponges, gels, and the like.

In the above embodiment, the negative electrode is arranged on the holding portion,
Although the positive electrode is disposed on the base, when the medicine is negatively charged, the positive electrode must be disposed on the grip portion and the negative electrode must be disposed on the brush portion.

The electronic hair combing device of the present invention includes not only a hairbrush having a grip portion as in the above embodiment but also a hairbrush and a comb without a grip portion.

The shape of the base is not limited to the rectangular parallelepiped as in the above embodiment, but may be any shape such as a disk or a cylinder.

Further, the contact between the positive electrode and the negative electrode may be achieved by bringing them into direct contact as in the above embodiment, but may also be achieved by electrically connecting them via a conductive material. Good.

In the above embodiment, the shape of the electrode is concave, but the shape is not limited to this, and the electrode may be flat or linear. In addition, the brush or the comb teeth may be plated with a conductive material without being disposed on the base or in addition to the arrangement on the base, or a part or all of the brush or the comb teeth may be conductive. It may be a substance.

When the drug-impregnated pad is not provided, the drug is sprayed on the hair or the electronic hair comb and used. In this case, the biological battery element forms an electric circuit with the scalp via the conductive agent attached to the hair.

In addition, the electronic hair comb of the present invention can be provided with two or more battery elements, which not only can increase the amount of penetrating drug, but also can be positively or negatively charged. It can also exert iontophoretic action on the selected drugs.

[0028]

As described above, the electronic hair comb of the present invention has a remarkable effect that a drug can be effectively penetrated into the inside of the scalp by the action of iontophoresis.

[Brief description of the drawings]

FIG. 1 is a top view of one embodiment of an electronic hair comb according to the present invention.

FIG. 2 is a cross-sectional view of the electronic hair comb of FIG. 1 taken along the line II of FIG. 1;

 ──────────────────────────────────────────────────続 き Continued on the front page (71) Applicant 599025396 Etsuro Murayama 3-2-8 Shirahata, Fujisawa-shi, Kanagawa (71) Applicant 598150215 Shigeo Ikeda 2-37-17 Higashi Tamagawa, Setagaya-ku, Tokyo (72) Inventor Kogama Kenji 7-34-2, Asumigaoka, Midori-ku, Chiba-shi, Chiba (72) Inventor Etsuro Murayama 3-2-8, Shirahata, Fujisawa-shi, Kanagawa (72) Inventor Shigeo Ikeda 2-37-17, Higashitamagawa, Setagaya-ku, Tokyo F-term (Reference) 3B202 AA11 BA02 FA11

Claims (3)

[Claims] 1. A hair combing device for achieving application of a drug to the scalp, comprising a base on which a brush or comb teeth for combing hair is implanted, and at least a surface higher than that of the negative electrode portion. A positive electrode portion made of a conductive material having a standard electrode potential and at least one surface provided with at least one biological cell element provided with a negative electrode portion made of a conductive material having a standard electrode potential lower than the positive electrode portion; Accordingly, the biological battery element further includes a grip portion extending from the base, wherein the positive electrode portion and the negative electrode portion are electrically connected, and at least one of the positive electrode portion and the negative electrode portion is At least a part thereof is provided so as to be exposed on the base and / or the brush or the comb teeth so as to be able to come into contact with the drug attached to the hair of the user, and only one of the positive electrode portion or the negative electrode portion is provided. Is in contact with the drug If provided, the other positive electrode portion or negative electrode portion is provided to be exposed to the base and / or the gripping portion so that at least a part thereof contacts a user's hand during use. In use, the positive electrode portion and the negative electrode portion constitute a biological battery together with a drug and a user's body, and the hair combing device penetrates the drug into the scalp by an iontophoretic action. 2. The hair comb device according to claim 1, wherein said base has at least one contact point with said positive electrode part and / or negative electrode part installed on said base and / or brush. A hair combing device further comprising a drug-impregnated pad disposed on a surface for impregnating the drug. 3. The hair comb according to claim 1, wherein the conductive material of the negative electrode is an n-type semiconductor.