JPS6111057A - Conductor for low frequency treating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention aims to relieve pain by applying a low-frequency current to the human body to cause contraction movements in paralyzed muscles and to calm all excited nerves. This invention relates to a conductor for a low-frequency treatment device used to pass a low-frequency current through the skin to the human body in low-frequency therapy.

[Background of the invention]

In low-frequency therapy, when trying to pass all the normal conduction current through the human body, the skin has a large electrical resistance at the entrance and exit points for the current, so it is necessary to devise ways to lower the electrical resistance of the skin.

Conductors are used to pass low-frequency current through the skin and into the human body, and various shapes and structures are used depending on the purpose. Examples include a flat plate type conductor, a roller type conductor, a facial conductor, a tongue conductor, an intermittent conductor, and the like.

Such a conductor should be made of metal that conducts electricity, but if the metal is directly attached to the skin, it is difficult to adhere evenly even though it is invisible to the naked eye. The contact resistance becomes uneven, and the current density becomes uneven, causing pain in some areas.

Conventionally, in order to average out the total contact resistance on the skin surface, the circumference of the metal plate of the conductor was covered with Dk cotton cloth or the like and moistened with water, or the surface of the metal plate of the conductor was covered with conductive rubber. Generally, a conductive gel is applied to the surface of the shield.However, when using it, it is not necessary to wet the surface with water or apply a conductive gel to the surface. Not only is it annoying, but it is also troublesome to clean after use, and it is unclean if left unused.

[Purpose of the invention]

An object of the present invention is to provide a conductor for a low frequency treatment device that can be used without requiring either water or conductive gel, which are conventionally required.

[Summary of the invention]

As a result of numerous experiments with such conductors for low-frequency therapy devices, the present inventor found that when water or conductive gel is not used, the point on the surface of the metal conductor body that contacts the skin, and the conductor body. In the part where the distance between the conductive wire that supplies low frequency current and the connection point to the conductor body is short, the current density increases and causes pain? have discovered that by arranging the above-mentioned distance so that it is approximately equal to the entire skin-contacting surface of the conductor body, it is possible to avoid increasing the current density locally and causing pain, This led to the present invention.

In other words, the present invention is characterized in that, in a conductor used in a low-frequency treatment device, a point on the surface of a relatively thick metal conductor body that contacts the skin; The present invention is characterized in that the distance between the conductive wire that supplies all of the low frequency current to the connection point to the conductor body is substantially uniform over the entire skin contact surface.

[Embodiments of the invention]

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

FIG. 1 shows the first embodiment. This is of a type that can be called a sliding conductor, and in the figure, reference numeral 11 indicates a conductor body made of metal such as brass, aluminum, copper, etc. Reference numeral 12 indicates the surface to be in contact with the human skin, 15 indicates a conductive wire for transmitting a low frequency current, and 14 indicates its connection point to the conductor body. Reference numeral 15 denotes a handle made of an insulating material for supporting the conductor body, and is used by grasping this handle and applying it to the surface 211 of the conductor body - the skin. According to the invention, the distance d\i between a point p on the contact surface 12 and the connection point 14 is substantially uniform over the entire surface 12.

Therefore, the low frequency current supplied to the conductor body 11 at the point 14 reaches almost uniformly over the entire contact surface 12 and is supplied to the skin with a generally uniform current density, with the current density increasing in some areas causing pain. This can be avoided.

In the conductor according to the present invention, it is possible to obtain a nearly uniform current density over the entire contact surface without applying water or conductive gel to the surface as in the conventional methods, thereby causing local pain. will not occur.

FIGS. 2 to 6 each show other embodiments of the present invention.

FIG. 2 shows the entire amount of a second embodiment of the present invention. This is of a type called a fixed contact conductor, and in the figure, 21 is a metal disk-shaped conductor body, 22 is a surface that should come into contact with the human skin, and 2
Reference numeral 6 denotes a circular annular protrusion integrally formed on the back surface of the conductor body, and 24 denotes the entirety of a disc-shaped conductive plate that is brought into contact with the annular protrusion so as to be in even contact with the annular protrusion. Conductive 1 for low frequency current supply
s25 is connected to the center 26 of the conductive plate 24. 27 is a cover made of an insulating material such as rubber. In this example, from the connection point 26 of the conductive wire 25, it passes through the connection point by of the annular protrusion and the conductive plate to point a1 on the skin contact surface of the conductor body. a2
．． The distances to a, .

FIG. 3 shows the total amount of the third embodiment of the present invention. This is called a roller conductor, and 31 is a roller-shaped metal conductor body, 32 is its skin contact surface, 33 is a shaft support member made of an insulating material, 64 is a metal shaft of the roller, 35
are bearings at both ends of the shaft, 36F-1 metal support,
37 is a handle made of an insulating material, and 68 is a conductive wire for supplying low frequency current. The low frequency current supplied by the conductive wire 68 is transmitted to the conductor body 61 at the p1 point 69, which connects the metal support 66, the bearing 35 and the shaft 64. In this example as well, the distance from point 39 to each point on the surface 32 of the conductor body is substantially equal, allowing a uniform current density to be obtained over the entire contact surface 32.

FIG. 4 shows a fourth embodiment of the invention. This is called a nigiri conductor, and the conductor body 41 has a spherical skin contact surface 42, and a conductive wire 46 for supplying low frequency current is connected to the center 44 of the spherical surface 42. . In this example, the distances between the connection point 44 and each point on the surface 42 are equal.

FIG. 5 shows a fifth embodiment of the invention. This is called a spot conductor and is used for special spots.

In this embodiment, as in FIG. 4, a conductor body 51't is formed with a spherical surface 52, and a conductive wire 56 is connected to the center 54 of the sphere. In this embodiment, the conductor body 51 is made into a smaller spherical shape than that shown in FIG. 4, and a handle 55't made of an insulating material is attached to it.

FIG. 6 shows the entire amount of Example E6 of the present invention. This is called a four-part fixed guide, and is applied to the hollow areas around the eyes. This embodiment has a substantially hemispherical surface 62 on the conductor body 61. I: A conductive wire 63 for supplying low frequency current is connected to the center 64 of the hemisphere. 65 is a cover made of an insulating material such as rubber.

In both of the embodiments described above, the distances between the points on the contact surface and the wire connection points are all substantially equal, thus providing a uniform current density across the contact surface.

〔Effect of the invention〕

According to the present invention, unlike conventional conductors, there is no need for complicated operations such as covering the surface with cotton cloth or the like and soaking it in water during use, or coating the surface with conductive gel. , low frequency treatment can be performed using metal conductors,
Therefore, it can be used for many years without the trouble of cleaning it and replacing the sash cloth after use.

[Brief explanation of the drawing]

1, 2, 6, 4, 5 and 6 each show an embodiment of a low frequency therapy guide according to the present invention. 11... Conductor body 12... Contact surface 16...
・Conductive wire 14... Connection point 15... Handle
21... Conductor body 22... Contact surface 2
Lo... Annular protrusion 24... Conductive plate 25...
・Conductive wire 26...Connection point 27...Cover 6
1... Conductor body 62... Contact surface 36...
Shaft support member 64...Shaft 65...Bearing 36...Support body 67...Handle
38... Conductive wire 69... Connection point 41...
Conductor body 42...contact surface 46...conducting wire 4
4... Connection point 51... Conductor body 52...
Contact surface 5ro... Conductive wire 54... Connection point
55... Handle 61... Conductor body 62.-
・Contact surface 63... Conductive wire 64... Connection point 65... Cover

Claims (1)

[Claims] Distance between a point on the skin-contacting surface of a metal conductor body having a relatively large thickness and a connection point to the conductor body of a conductive wire that supplies a low-frequency current to the conductor body. A guide for a low-frequency treatment device, characterized in that the conductor is configured so that the above-described characteristics are substantially uniform over the entire skin contact surface.