JPH02131779A - Ion lead-in device - Google Patents

Abstract

PURPOSE:To ionize medical liquid included in a medical liquid housing part, and to easily permeate the liquid from sking with which the liquid is in contact, into the body of a patient by arranging a first electrode operated as a positive pole in the internal part of a plane-shaped casing, arranging a second electrode operated as a negative pole in the external wall part of the casing and forming a space formed between first and second electrodes as a container to house the medical liquid, etc. CONSTITUTION:For the medical liquid impregnated to a sponge body 46, energizing from a battery 36 is interrupted in advance. In such a condition, at first, such an ion lead-in device 30 is mounted on the desired skin of an organ. A prescribed current is fed from the battery 36 to a first electrode 42 and a second electrode 52 and the medical liquid impregnated to the sponge body 46 is ionized. Since a part of the sponge body 46 is expanded through a hole part 48, a contact condition is obtained between the organ and sponge body 46 and the medical liquid is ionized by the current which flows from the first electrode 42 to the second electrode 52. Then, this ionized medical liquid is permeated into the internal part of the organ.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an iontophoresis device, and more specifically, it ionizes a charged chemical solution or the like in a solution or an electrolyte to inject it into the skin of a living body. The present invention relates to an iontophoresis device that enables sterilization, disinfection, anesthesia, etc. through electrical penetration.

[Background of the Invention] Iontophoresis is a method of injecting ionized chemical solutions through the skin or mucous membranes in order to avoid the stinging pain caused by injection needles and to prevent unexpected accidents caused by the injection needles to living organisms. This is a method of introducing it into the body.

A conventional anesthesia device using iontophoresis is shown in FIG. This device 2 includes a controller 4, a first electrode 6 as an anode inserted into a patient's external ear region, for example,
The controller 4, the first electrode 6, and the second electrode 8 include a plug 10, a lead wire 12, wires 14a, 14b, and a connector pin 1.
6 is electrically connected. A pad 18 preferably impregnated with saline can be attached to the second electrode 8. This is to prevent burns.

In the above configuration, for example, an anesthetic solution is injected into the patient's external auditory canal. Next, the first electrode 6 is inserted into the external auditory canal, while the second electrode 8 is attached to the patient's skin at a predetermined location via the pad 18.

After such a preparation step, a predetermined current is passed between the electrodes 6 and 8 under the operation of the controller 4. The anesthetic solution is ionized by this energization action, and the skin around the external auditory canal is locally anesthetized.

However, as can be easily understood from the above general explanation, the devices related to the prior art are extremely large and the electrodes are electrically connected with long wires, so they are not easy to handle. Lacks quality. Moreover, the structure requires the patient to remain stationary with the electrode attached in order to obtain the anesthetic effect. Therefore, when trying to obtain an iontophoresis effect on the skin of a living body, or continuing work, etc.
Unable to perform normal tasks.

[Object of the Invention] The present invention has been made to overcome the above-mentioned disadvantages, and includes disposing a first electrode functioning as an anode inside a flat casing, while a second electrode acting as a cathode is disposed in the first electrode;
A space defined between the electrode and the second electrode is formed as a container containing a chemical solution or the like. Note that a relatively small power source such as a paper battery is arranged inside the casing.

In such a configuration, when a predetermined current is passed between the first electrode and the second electrode, the drug solution contained in the drug solution container is ionized and easily passes into the patient's body from the skin with which it comes into contact. It can penetrate. Therefore, the patient itself is not hindered from carrying out normal work, the iontophoresis effect can be obtained over a long period of time, and this structure also provides advantages such as further miniaturization. It becomes possible.

[Means for Achieving the Object] In order to achieve the above object, the present invention disposes a power source, a first electrode, and a drug storage portion facing the first electrode inside a casing, and further comprises: The present invention is characterized in that it is configured to include a second electrode, and to apply a current between the first electrode and the second electrode via the power source to ionize the drug solution or the like in the drug storage section.

[Embodiments] Next, preferred embodiments of the iontophoresis device according to the present invention will be described in detail with reference to the accompanying drawings.

First, the iontophoresis device according to the present invention includes an integrated type in which an anode electrode and a cathode electrode are attached to one casing, and a so-called separated type in which the cathode electrode is separated from the casing. It can be broadly divided into Therefore, first, the integrated iontophoresis device will be explained.

In FIG. 2, reference numeral 30 designates this integrated iontophoresis device, which includes a relatively flat, disk-shaped casing 32. In FIG. This casing 3
The thickness of No. 2 is about 1 mm to 15 mm. The casing 32 is preferably made of thermoplastic resin, such as vinyl chloride or silicone resin, which will not be damaged by chemicals or the like. It is more preferable to use silicone resin because it can adapt to the skin of a living body and change its shape flexibly.

It is also possible to use paper, cotton, or the like as the core material of the casing 32, and coat the surface with a thermoplastic resin to ensure water resistance and reduce the weight.

A circular space 34 is provided inside the casing 32 configured as described above, and a paper battery, a button type battery, a disk type battery, or in some cases, a liquid battery whose external shape can be freely changed is provided inside the casing 32. Insert the battery that can be used. Furthermore, this space 34 can be communicated with the outside by opening a cover member (not shown) provided on the casing 32 that can be opened and closed, and therefore, it goes without saying that the battery can be replaced. The battery 36 can be a power source that can be charged externally, or a power source that can be charged by light, such as a solar cell. In this case, it goes without saying that it is preferable that the outer wall portion of the casing 32 in which the battery 36 is housed be made of a transparent member.

The casing 32 has a partition wall 3 for defining the space 34.
It has 8. A set of holes is defined in this partition wall 38,
The lead wires 40a and 140b are connected to the space 3 through these holes.
Extendable to outside of 4.

As clearly shown in FIG. 2, a first electrode 42 serving as an anode is disposed on the opposite side of the partition wall 38 from the battery 36. The first electrode 42 is, for example, 5μ
It is a disc-shaped plate with a thickness of 3 mm to 3 mm, and is preferably made of gold, platinum, stainless steel, aluminum, or the like, which is not affected by chemicals or the like. This first electrode 42 faces a relatively large space 44 defined in the casing 32. A compressed corpus cavernosum 46 is inserted into the space 44, so that the corpus cavernosum 46 is in pressure contact with one end surface of the first electrode 42. In this case, a circular hole 48 is defined in the center of the casing 32, and a part of the corpus cavernosum 46 in a compressed state bulges out from this hole 48 to the outside of the casing 32. ing.

In the drawing, the casing 32 has an adhesive 50 applied to its lower end surface for firmly adhering the iontophoresis device 30 to the skin of a living body or the like. This adhesive 50 is selected from a material that does not cause irritation to the skin or the like. moreover,
A second electrode 52 serving as a cathode is disposed in a circular shape on a portion of the casing 32 excluding the surface to which the adhesive 50 is applied. This second electrode 52 is made of a material that is not affected by the chemical liquid etc. that is impregnated into the corpus cavernosum 46, and is preferably made of gold, platinum, etc.
Made of stainless steel, aluminum, etc., the thickness is 5μ
m to 3 mm. Of course, the second electrode 52 may be formed by plating the casing 32.

The second electrode 52 and the battery 36 are electrically connected by the lead wire 40a. The lead wire 40a itself can also be provided integrally when forming the casing 32. In this case, it is also possible to provide a protective film 54 as shown by the broken line in FIG. The protective film 54 is made of thermoplastic resin and protects the electrode 52 and adhesive 50 of the device 30 before use.

The integrated iontophoresis device 30 according to the first embodiment of the present invention is basically constructed as described above, and its operation and effects will be explained next.

The corpus cavernosum 46 is sufficiently impregnated with a therapeutically effective drug, for example. At this time, electricity from the battery 36 is cut off in advance. In this state, first, the iontophoresis device 30 is placed on the desired skin of the living body. Preferably, the protective film 54 pasted on the adhesive 50 is peeled off, and the iontophoresis device 30 is installed via the adhesive 50. and,
A predetermined current is applied from the battery 36 to the first electrode 42 and the second electrode 52. That is, the current flows from the first electrode 42 to the second electrode 52, and at this time, the chemical solution impregnated into the corpus cavernosum 46 is ionized.

As described above, a portion of the corpus cavernosum 46 bulges out through the hole 48, so that the living body and the corpus cavernosum 46 are brought into contact via this bulging portion. Therefore, the medicinal solution impregnated in the corpus cavernosum 46 is ionized by the current flowing from the first electrode 42 to the second electrode 52, and this ionized medicinal solution penetrates into the inside of the living body through the bulging part of the corpus cavernosum 46. . As a result, the desired medicinal effect will be obtained.

FIG. 4 shows a separate type iontophoresis device as a second embodiment. In this case, the same reference numerals are given to the same components as those of the iontophoresis apparatus shown in FIGS. 2 and 3, and detailed explanation thereof will be omitted.

Therefore, in this separate type, a circular thin film-like second electrode 52 is mounted approximately at the center of a disk-shaped substrate 60, and the second electrode 52 is surrounded by an adhesive 50. Of course, it is preferable to cover the second electrode 52 and the adhesive 50 integrally with a protective film 54 before use.

A lead wire 40a extending from the battery 36 through the center of the substrate 60 is electrically connected to the second electrode 52.

According to the above configuration, for example, as shown in FIG. 5, the casing 32 incorporating the first electrode 42, the corpus cavernosum 46, and the battery 36 is attached to the arm of a living body in advance, and the casing 32 is placed at a predetermined distance from there. The substrate 60 and the second electrode 52
, it is possible to provide a separate cathode part fitted with adhesive 50.

As a result, when electricity starts to flow from the first electrode 42 to the second electrode 52, as shown by the broken line, the medicinal effect of the ionized medicinal liquid can be obtained between the broken line portion.

[Effects of the Invention] As described above, according to the present invention, the iontophoresis device can be made into an extremely flat shape.

Therefore, it is possible to allow the patient to move freely while wearing the device, and to obtain the desired medicinal effect. Furthermore, since no large equipment is required, it is easy to handle and economical. Therefore,
It can be easily disposed of. Furthermore, as mentioned above, because it is disposable, it is more hygienic.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments.
For example, various improvements may be made without departing from the gist of the present invention, such as replacing the corpus cavernosum with a simple drug storage, storing a drug solution in the drug storage, or introducing a gel-like drug into the drug storage. Of course, the design can also be changed.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of an iontophoresis device according to the prior art, FIG. 2 is a vertical cross-sectional diagram of an integrated iontophoresis device according to the present invention, and FIG. 3 is a perspective diagram of the iontophoresis device shown in FIG. 4 is a vertical cross-sectional explanatory view of a separate type iontophoresis device according to the present invention, and FIG. 5 is a schematic perspective view illustrating a state in which the separate type iontophoresis device shown in FIG. 4 is attached to a human body. 30... Iontophoresis device 36... Battery 46... Cavernous body 52... Second electrode 32... Casing 42... First electrode 50... Adhesive 60... Substrate FIG. 4 FIG. 5

Claims (6)

[Claims] (1) A power source, a first electrode, and a drug storage portion facing the first electrode are disposed inside the casing, and a second electrode is further provided between the first electrode and the second electrode. An iontophoresis device characterized in that the iontophoresis device is configured to ionize a drug solution or the like in a drug storage section by applying a current to the device via the power source. (2) The iontophoresis device according to claim 1, wherein the second electrode is integrally incorporated into the casing and is provided at a site where it can come into contact with the skin of the living body. (3) The iontophoresis device according to claim 1 or 2, wherein the casing is provided with an adhesive that can be adhered to the skin of a living body or the like. (4) The iontophoresis device according to claim 1, wherein the second electrode is arranged separately from the casing and electrically connected to it by a lead wire extending from a power source. (5) In the device according to claim 4, the second electrode is provided on a substrate, the second electrode and adhesive are provided on one surface of the substrate, and the second electrode has a long lead wire. An iontophoresis device characterized in that the iontophoresis device is electrically connected to a battery disposed inside a casing. (6) The device according to any one of claims 1 to 5, wherein a corpus cavernosum is disposed in the drug storage section, and the corpus cavernosum is impregnated with a drug solution, and a part of the corpus cavernosum is exposed to the outside through the casing. An iontophoresis device characterized by: