JPH0578351B2 - - Google Patents

Description

[Detailed description of the invention] 〔Technical field〕 This invention relates to a blood circulation promoting device.

[Background technology]

In order to recover from stiff shoulders and muscle pain, it is effective to promote blood circulation by applying electromagnetic waves to specific parts of the body.

For this purpose, it is effective to attach a blood circulation promoting device to the area where stiff shoulders or the like occurs. A device equipped with an antenna, an electromagnetic field generating circuit, and a battery is disclosed in Japanese Patent Application Laid-Open No. 58-121964.
It is disclosed by the publication no. However, since the antenna and other parts of the device disclosed in the same publication are exposed to the outside, there are problems such as damage due to external force and inability to exhibit waterproof function against water, sweat, etc. be.

Therefore, a blood circulation promoting device in which each component is housed in a case has been proposed. According to this device, the above-mentioned problems such as damage can be solved. However, with this device, case A is either worn on the human body by covering it with a bandage 50 as shown in FIG.
As shown in the figure, the device was attached to the human body using an adhesive sheet 51 attached to the back of the case. When using the former mounting method, the bandage 50 needs to extend to the outside of the case A, which requires a large mounting area, making it difficult to attach the case A to a narrow affected area. Moreover, to attach case A, place case A on the human body and apply adhesive tape 5.
Since it is necessary to extend both ends of the 0 and attach it to the human body, it is troublesome to wear, and in particular, it is extremely difficult to wear on the back. Furthermore, since the case A itself is not attached to the human body, there was a problem in that during exercise, the case A floats off the skin and becomes easy to move and peel off. On the other hand, the latter mounting method has the advantage that the case A can be worn even on the back, and the case A can be stably worn. However, the conventional adhesive sheet 51 does not have air permeability per se, and is in complete contact with the case A, so moisture such as sweat accumulates between the human body and the adhesive sheet 51, making the skin stuffy. I had a problem with it getting a rash.

[Purpose of the invention]

In view of the above circumstances, it is an object of the present invention to provide a blood circulation promoting device that is easy to wear, difficult to peel off, and prevents rashes caused by wearing the device.

[Disclosure of the invention]

In order to achieve the above object, the present invention includes a case that is attached to the affected area, and inside the case, circuit components forming an electromagnetic field generating circuit, a battery for driving the circuit, and an antenna for forming an electromagnetic field are installed. In the blood circulation promoting device, the case is provided with an adhesive attachment means attached to the surface of the case to be attached to the affected area, the attachment means being formed of a breathable material, and the case The gist of the device is a blood circulation promoting device characterized in that a ventilation path leading to the outside from the center of the case to the outer periphery is formed on the outer wall surface on the mounting means side of the case.

Hereinafter, the present invention will be explained in detail with reference to the drawings showing embodiments thereof.

FIG. 1 shows a cross-sectional view of an embodiment of the blood circulation promoting device according to the present invention, and FIG. 2 shows the device with the cushion sheet removed, as seen diagonally from above. As seen in these figures, this blood circulation promoting device includes a case A made of plastic material. Case A consists of a case body 1 and a case cover (battery cover) 2. The case body 1 is made up of a lower member 3 and an upper member 4 placed over the periphery of the lower member 3, which are hermetically joined together using an ultrasonic welder. This is to improve waterproofness. The upper member 4 has a spherical upper surface 10 that is high at the center and low at the outer periphery. A circular battery mounting opening 12 is formed in the center of this upper member 4. A cylindrical partition wall 11 is formed from the periphery of the mounting port 12 toward the inside. This mounting port 12 has a case cover 2.
is fitted from above. The upper surface of the case cover 2 has a gentle spherical shape as an extension of the upper surface of the upper member 4, and the peripheral edge 2a extends in the axial direction to form a cylindrical shape. An O-ring 13 is attached to the outer circumferential surface of this peripheral edge 2a, and the case cover 2 is attached to the attachment opening 1.
2, the waterproofness inside the case A is ensured. Further, a cover-side hook 14 is formed at the edge of the peripheral edge portion 2a. This cover-side hook 14 includes a case-side engaging protrusion 1 that is protruded from the inner circumferential surface of the partition wall 11 of the upper member 4.
5 so that it can be freely engaged and detached. This engagement and disengagement is accomplished by inserting a coin into a coin groove 16 formed in the center of the upper part of the case cover 2 and rotating the case cover 2 in either direction. The partition wall 11 has a battery accommodating portion 17 formed on its inner circumferential side, and an accommodating space 18 for circuit components and antennas on its outer circumferential side. A button-type battery 19 is fitted in the battery accommodating portion 17 . On the other hand, an annular printed circuit board 20 is arranged in the circuit component/antenna accommodation space 18, and on the upper and lower surfaces of this board 20, circuit components 21 for an electromagnetic field generation circuit and a loop-shaped antenna 22 shown in FIG. are arranged so as to surround the battery 19 from the outer periphery. The printed circuit board 20 is formed into a circular annular plate as described above, and the first battery connection fitting 23 protrudes from one place on the lower surface of the printed circuit board 20 and protrudes from one pole of the battery 19 and from other places on the lower surface. Second battery connection fitting 24
are connected to the other poles at the center bottom of the battery 19, respectively.

By the way, the lower member 3 has a flat disk shape, and the bottom surface thereof is provided with a large number of ventilation passages 5, as shown in FIGS. 4a and 4b. This case A
As shown in Figure 1, adhesive sheets 7,
8 is laminated to the affected area via a breathable cushion sheet 6.
That is, one adhesive sheet 7 is attached to the bottom surface of the lower case 3, and the other adhesive sheet 8 is attached to the affected area. A large number of ventilation holes 9 are provided in the adhesive sheets 7 and 8. In this way, the cushion sheet 6 is breathable, and in addition to the ventilation passages formed in the lower member 3, the adhesive sheets 7 and 8 are also provided with ventilation holes 9, so that the overall It is highly breathable and can effectively prevent stuffiness and rashes that tend to occur when the device is attached to the body. In other words, body heat and humidity are
It is guided into the cushion sheet 6 through the ventilation hole 9 of the lower adhesive sheet 8, and this cushion sheet 6
a route a emitted from its outer periphery through the
The air is led from the cushion sheet 6 to the air passage 5 through the air hole 9 of the upper adhesive sheet 7, and is discharged from the air passage 5 through a route b through its outer periphery.

Although the ventilation path 5 is formed by a large number of parallel grooves in FIG. 4, it may be formed by radially expanding grooves as shown in FIGS. 5a and 5b. In addition, the same air passage 5 has a sixth
As shown in FIGS. a and b, the lower case 3 may have spaces between a large number of hemispherical protrusions 52 protruding from the bottom surface of the lower case 3 in a dotted manner. Furthermore, the same ventilation path 5
Alternatively, the bottom surface of the case may be formed into a rough surface with concave and convex shapes by subjecting a plastic mold to a texturing process, and the bottom surface of the case may be formed by fine spaces in the concave portions. The mounting means does not need to include the cushion sheet 6 as long as it has ventilation holes or the like. In other words, it may be constructed using only one of the adhesive sheets 7 and 8.

A battery power switch SW and a light emitting diode LED for displaying its status are arranged on the printed circuit board 20, and correspondingly, a switch operation section 25 and a lamp display section 2 are arranged on the upper member 4.
6 is provided to maintain a sealed state. The circuit component 21 is mainly a component for an electromagnetic field generating circuit, and its detailed circuit configuration is as follows. In other words, the oscillation circuit is
As shown in the figure, resistors R ₁ , R ₂ , capacitor C ₁ ,
A Colpitts-type LC oscillation circuit 27 consisting of C ₂ , transistor Q ₁ , and inductance L ₁ , and resistors R ₃ to
R ₆ , capacitors C ₃ , C ₄ , transistors Q ₂ , Q ₃ , and resistors R ₇ , R ₈ ,
It consists of a transistor _Q4 , a display circuit 29 consisting of a light emitting diode LED, and a battery power switch.
When the SW is turned on, the multivibrator 28 oscillates, and its oscillation output supplies the base current of the transistor Q ₁ of the LC oscillation circuit 27, causing the oscillation circuit 27 to operate in oscillation, which is modulated by the output of the multivibrator 28. Generates an electromagnetic field. This electromagnetic field is radiated via antenna 22 coupled to inductance L ₁ . Here, the modulation by the multivibrator 28 is intended to maintain the blood circulation promoting device to the living body and to save power. Further, the output of the multivibrator 28 is applied to the base of the transistor _Q4 of the display circuit 29, and the transistor _Q4 is intermittently switched.
Transistor Q ₄ flashes the light emitting diode LED connected in series to indicate the usage status.

〔Effect of the invention〕

As seen above, in the blood circulation promoting device according to the present invention, the mounting means is formed of a breathable material, and the mounting means is provided on the outer wall surface of the case on the mounting means side. Since a ventilation path leading to the outside is formed, it is easy to wear and difficult to peel off, and it is also possible to prevent rashes caused by wearing it.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the blood circulation promoting device according to the present invention, Fig. 2 is an external view of the blood circulation promoting device viewed diagonally from above with the cushion sheet removed, and Fig. 3 is an antenna. The bottom view showing the pattern, FIG. 4 shows a blood circulation promoting device equipped with parallel groove type ventilation passages, FIG. FIG. 6 shows a blood circulation promoting device with a ventilation path formed between protrusions; FIG. 6A shows a front view thereof, FIG. Fig. 7 is an oscillation circuit diagram of the blood circulation promoting device, and Fig. 8 is a front view of the device.
9 and 9 are front views showing conventional mounting examples. 5...Air passage, 19...Battery, 22...Antenna, A
…Case.

Claims (1)

[Scope of Claims] 1. A case that is attached to the affected area, and inside the case, a circuit component that constitutes an electromagnetic field generation circuit, a battery that drives the circuit, and an antenna that generates an electromagnetic field are provided. , in the blood circulation promoting device in which an adhesive attachment means is attached to the surface of the case to be attached to the affected area, the attachment means is made of a breathable material, and the attachment means side of the case is made of a breathable material; A blood circulation promoting device characterized in that a ventilation path leading to the outside from the center of the case to the outer periphery is formed on the outer wall surface of the case. 2. The blood circulation promoting device according to claim 1, wherein the ventilation path is formed by a groove extending linearly. 3. The blood circulation promoting device according to claim 1, wherein the ventilation path is constituted by a space formed between a large number of point-like protrusions. 4. The blood circulation promoting device according to claim 1, wherein the ventilation passage is formed by texturing.