JPH0344213Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a new ultra-miniaturized electric stimulation device, and its structure and shape.

Although it is a small battery of about 1.5 to 3.0 (V),
A low-frequency treatment device has been proposed that is sufficiently sensitive to the human body and has excellent durability and can be used by attaching it to a living body. Although the number of components is small, including a button battery, a substrate on which an electronic circuit is mounted, and electrodes, it has a shape suitable for human attachment and use, and has sufficient practical functions such as maintenance. does not exist yet.

The present invention was conceived in view of the above, and aims to provide an ultra-compact low-frequency treatment device having a shape and structure suitable for adhesive use.

The internal structure and overall shape of the present invention will be explained in detail below.

Figure 1 shows the internal structure. 1 is a housing made of hard synthetic resin, such as ABS resin. The upper surface of the casing 1 is formed with a recess large enough to house the switch means 11, and further has a spring 1.
0 and the holes 1H, 1 through which the leaf spring 14 partially penetrates.
I is drilled. Further, the bottom of the housing 1 is open, and a convex portion is attached to the inner edge thereof. 2
is a button battery, and has a nominal output voltage of about 1.5 to 3.0 (V). 3 is the inner lid, and the housing 1
Made of the same material as. The inner lid 3 has a recess formed in its upper surface to accommodate the button battery 2, and holes 3H and 3I are provided on both sides of the recess through which the spring 10 and the leaf spring 14 partially penetrate. A hole 3K through which the spring 13 passes is formed in the center of the recess, and a hole 3J through which the leaf spring 14 partially passes through the side surface of the recess. Therefore, the spring 1 protrudes into the recess of the inner cover 3.
3 and the leaf spring 14 contact both poles of the button battery 2, and serve as an input section for supplying battery voltage to the electronic circuit board 4.

Further, a convex portion 3S is attached to the outside of the bottom portion of the inner lid 3. On both sides of the electronic circuit board 4, which is made up of electronic components mounted on a PCB or the like, battery voltage input sections 4O, 4G and switch contact sections 4P are attached to the front surface, and electrical stimulation output sections 9G, 9G' are attached to the back surface. ing. Furthermore, resistors, capacitors, ICs, etc. are incorporated on the surface, and electrical stimulation pulses capable of stimulating the living body are generated from the battery energy of the button battery 2.

The battery voltage input part 4O has a spring 13, the battery voltage input part 4G has a leaf spring 4G, the switch contact part 4P has a spring 10, and the electrical stimulation output parts 9G, 9G' have leaf springs 5, 5'. are in corresponding contact with each other.

The circuit operation within the electronic circuit board 4 is, for example, as follows. The battery voltage from the button battery 2 is boosted by a coil, stored in a capacitor, and when it reaches an energy level that can be used for biological stimulation, the stored energy is discharged as a low-frequency stimulation pulse. Furthermore, a ``datsushiyu'' (datsushiyu) was added to the side of Inkan Douko to distinguish it from Seki Douko.

6 is a conductive member. The conductive member 6 is molded from a metal plate and attached to the upper surface of the bottom support 8. In the bottom support 8, adhesive and conductive interface members 7 and 7' are adhesively connected to the conductive member 6.
Moreover, it is molded into a frame shape so as to support the conductive member 6. Furthermore, a recess 8e is formed on the inner side surface of the bottom support 8 to fit with the protrusion 35 on the outside of the bottom of the inner lid 3. A recess 8S is carved on the outer side of the bottom support 8 to fit into a convex portion 1S provided on the inner side of the bottom of the casing 1. The interface members 7 and 7' are sheets made of a mixture of, for example, 45 parts by weight of karaya gum, 50 parts by weight of glycerin, and 5 parts by weight of sodium chloride. There are also sheets formed of a mixture of 15 parts by weight of maleic anhydride, 5 parts by weight of NaOH, 50 parts by weight of glycerin, 5 parts by weight of NaCl, 20 parts by weight of water, and 1 part by weight of ethylene glycol diglycidyl ether. It should be noted that the composition is not limited to the above-mentioned formulation examples and components, and any material having conductivity, adhesiveness, etc. may be used.

Next, an enlarged view of the switch portion 11 provided in the recessed portion of the upper surface of the housing 1 is shown in FIG. 4 and will be described.

The switch part 11 has an electrode A51 on the upper part of the base body 56.
and electrodes B55 are arranged in parallel at intervals, and a backing member 53 is placed on the upper surface of the electrodes with a hollow spacer 54 interposed therebetween.
are fixed with adhesive or the like.

A conductive member 52 is provided at the bottom of the lining member 53.
is fixed by adhesive or printing so as to extend to the upper surfaces of electrode A51 and electrode B55. The backing member 53 is made of an elastic material with little loose deformation.
For example, a plate made of synthetic resin such as polyester film is preferable. A leaf spring 14 protruding into the recess of the housing 1 is in contact with the electrode A51, and a spring 10 protruding into the recess of the housing 1 is in contact with the electrode B55.

The operation of the switch section 11 having the above structure is as follows.

By pressing the approximate center of the lining member 53 with a finger, the lining member 53 is distorted, the conductive member 52 provided on the back side comes into contact with the electrode A51 and the electrode B55, and the electrode A51 and the electrode B55 are brought into conduction. Become. When the pressing is stopped and the finger is released, the backing member 53 returns to its original state and becomes non-conductive. Such a switch is suitable for functions such as providing a set or reset signal to a counter or the like. In addition, compared to conventional membrane switches with such functions, since there is no need for folded parts, it can be made extremely thin, and since each component is rigid, the strength is significantly improved. .

Next, an example of the combined operation and effect of each component shown in FIG. 1 will be explained.

Installing conductive members 6, 6' on the bottom support 8,
The contact portions between the bottom support 8 and the conductive members 6, 6' are bonded and fixed with an adhesive or the like. Alternatively, the conductive members 6, 6' are fixed to the bottom support 8 by integral injection molding.

Next, the electronic circuit board 4 is placed on the conductive members 6, 6' on the bottom support 8 via the plate springs 5, 5'.
Furthermore, a battery voltage input section 4O on the top surface of the electronic circuit board 4,
A spring 13, a leaf spring 14, and a spring 10 are placed on the switch contact portion 4G and the switch contact portion 4P, respectively, and the inner cover 3 is fitted onto the bottom support 8.

Next, place the button battery 2 in the recess on the top surface of the inner lid 3,
The convex portion 1S on the inside of the bottom of the casing 1 provided with the switch portion 11 is fitted into the concave portion 8S of the bottom support 8 to obtain a molded body as shown in FIG. 2.

On the other hand, to replace the battery during use, it is sufficient to remove the housing between the housing 1 and the bottom support 8, and
Since the electronic circuit board 4 and the like can be easily separated by removing the inner cover 3, its maintainability is very high. Furthermore, although they are easy to separate, after being assembled, the electronic circuit board 4 and the conductive members 6, 6' can be sufficiently fixed by the elasticity of the spring and leaf spring.

In addition, the conductive members 6, 6' and the electronic circuit board 4
The leaf springs 5, 5' interposed between the two and for electrical connection etc. may be made of anisotropic conductive rubber or other material that is conductive only in a specific direction and has high elasticity. You can. Furthermore, the area of the electrical stimulation output parts 9G and 9G' provided on the back side of the electronic circuit board 4 is expanded and printed with carbon or the like to prevent corrosion, and used in place of the conductive members 6 and 6', and directly interfaced with the interface member 7.
You may also paste.

Further, a case where the conductive member is made of titanium or a titanium compound will be described below.

Conductive materials used as conductors for electrical stimulation devices are generally made of conductive resin mixed with carbon, but they deteriorate quickly due to external pressure, etc., and the lack of freedom in design poses problems in practicality. I was getting used to it. On the other hand, it has also been proposed to use metals instead, but the impact on the human body due to their elution is a problem. Therefore, when titanium is used, it can safely withstand long-term use without oxidation corrosion.

Additionally, the output pulses from the electrical stimulation device are bipolar. Number of consecutive potentials exceeding 0.4V
By adding a functional configuration such as not having a pulse output with a time interval of msec or less, stable stimulation can be applied without having to worry about the insulating oxide film that occurs when titanium is used as a conductive material. It is possible.

Further, the use of such leaf springs 5, 5' for electrical connection is suitable in cases where lead wires or the like cannot be soldered to the conductive member.

Next, the overall shape is shown in FIG. 3 and will be explained.

Figure 3a is a front view, b is a right side view, c is a bottom view, and d is a rear view. As is clear from this figure, the present invention is constructed by simply attaching the switch portion 11 to the upper surface of a semicircular spherical housing 1 whose upper and lower surfaces are parallel. In addition, the seki conductor and disjunction dome on the back are formed by the interface members 7 and 7', and electrical stimulation can be applied just by pasting these parts on the human skin, making it extremely easy to use. It will be simplified.

In addition, the entire structure is formed by a curved surface, and the overall size is very small, with a bottom diameter of approximately 40 mm, a height of 10 mm, and a top diameter of 30 mm. , it is possible to use the adhesive for a long time without any adverse effects.

As described in detail above, the present invention has advantages such as easy maintenance during use and stable use.

[Brief explanation of the drawing]

1 to 3 are diagrams showing embodiments of the present invention,
FIG. 4 is an enlarged view of the switch section in FIG. 1. 1... Housing, 2... Button battery, 3... Inner lid,
4... Electronic circuit board, 5, 5'... Leaf spring, 6,
6'... Conductive member, 7, 7'... Interface member, 8...
...Bottom support, 9, 9'...Electrical stimulation pulse output section, 10, 13...Spring, 11...Switch section, 14...Plate spring.

Claims (1)

[Scope of utility model registration request] A casing made of insulating hard resin or the like and having a recessed portion on the top surface and an open bottom surface, a power supply section arranged in a layered manner within the casing, an electronic circuit board for generating electrical stimulation pulses, and a conductor. a conductive member, an interface member having conductivity and adhesiveness that is electrically connected by being attached to the conductive member, and a casing in which the conductive member is molded from an insulating hard resin or the like. a bottom support member having a shape with an exposed portion on the bottom surface of the body and formed to be mechanically removably fitted to the bottom of the casing; A switch means for disconnecting/disconnecting a connection or transmitting a signal to a circuit, and pressing and fixing the switch means, a conductive member, an electronic circuit board, and a power supply unit vertically, and electrically connects them by their conductivity. An ultra-compact electrical stimulation device structure characterized by comprising an elastic member for the purpose of use.