JP3098784B2 - Blood circulation promotion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blood circulation promoting device for performing treatment by applying an electromagnetic field to the body.

[0002]

2. Description of the Related Art To recover from stiff shoulders and muscle pain,
It is effective to apply a high-frequency electromagnetic field to a specific part of the body to promote blood circulation. There is a blood circulation promoting device that is convenient for promoting blood circulation by this electromagnetic field (electromagnetic wave). As a conventional blood circulation promoting device, as shown in FIG. 10, there is a rechargeable blood circulation promoting device including a disc-shaped treatment device 101 and a charger 105.

As shown in FIG. 12, a treatment device 101 includes an oscillation circuit 121 including an antenna 111, an IC for generating a therapeutic electromagnetic field from the antenna 111, a transistor Tr1, and the like. And a storage battery 122 to be driven. On the other hand, the charger 105
Case 1 composed of bottom body 151a and upper body 151b
The case 151 is provided with a mounting portion 153 into which the treatment device 101 can be removably fitted. As shown in FIG.
01 is charged using the dry battery 116 provided in the charger 105 as a charging power source. During charging, the transistor Tr2 is turned on and the light-emitting diode D1 is turned on, so that it can be seen at a glance that charging is in progress.

[0004] When performing treatment with the treatment device 101, the treatment device 101 removed from the charger 105 is attached to an affected part of the body with an adhesive tape or the like. When the storage battery 122 runs out, it is attached to the charger 105 to charge the storage battery 122 to make it usable. In the treatment device 101, as shown in FIG. 13, an antenna 111 and conductive patterns serving as charging conductive terminals 113 and 114 are provided on a substrate 110 disposed on the bottom. On the other hand, in the charger 105, as shown in FIG. 11, a charging connection terminal 106 is provided so as to face the bottom of the mounting portion 153. During charging, as shown in FIG. 10, the connection terminals 106, 106 and the conductive terminals 113, 11
4 are in contact with each other, and the charging current I flows.

[0005] However, in the case of a contact charging method such as a conventional blood circulation promoting device, the connection terminal 106 and the conductive terminal 1 are not connected.
There is a problem that a charging failure due to poor contact between the terminals 13 and 114 easily occurs. Sweat or dust,
Adhesive tape or the like adheres, causing conduction failure and terminal corrosion. Further, when there is an exposed terminal, there is a problem that it is difficult to take a waterproof structure.

[0006]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention does not cause a charging failure and has a waterproof structure.
Moreover, it is an object to provide a blood circulation promoting device that can be charged with good efficiency.

[0007]

In view of the above circumstances, a blood circulation promoting device according to the present invention includes a treatment device and a charger,
The treatment device includes an antenna, an oscillation circuit unit for generating a treatment electromagnetic field from the antenna, a storage battery for driving the oscillation circuit unit, and an external magnetic field (an AC magnetic field coming from outside the treatment device) received by the antenna. ), A charging circuit unit for charging the storage battery using the induced electromotive force generated in the antenna by a charging power source, the charger comprising: a magnetic field generating unit for generating the AC magnetic field for the external magnetic field; And a magnetic path through which an AC magnetic field passes from the unit, and a mounting portion for the treatment device provided in the magnetic path.

[0008] In the case of the blood circulation promoting device of the present invention, the present invention is not limited to the combination of one charger with one treatment device. 1
A configuration may be employed in which a plurality of treatment devices are simultaneously mounted on a single charger and can be charged simultaneously.

[0009]

According to the blood circulation promoting device of the present invention, the charging from the charger to the treatment device is a non-contact type using electromagnetic induction, and is not a contact type charging using an exposed terminal as in the prior art. There is no charging failure caused by the above, and a waterproof structure is easily obtained. In the blood circulation promoting device according to the present invention, the coil for receiving the magnetic field from the charger is not particularly provided, and the antenna for generating the electromagnetic field for treatment is shared as the coil. Need not be included.

Further, in the blood circulation promoting device of the present invention, the charger has a magnetic path through which an external magnetic field for charging passes, and the therapeutic device for charging is located in the mounting portion provided in the magnetic path. There is little loss during charging, and charging can be performed with good efficiency.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the blood circulation promoting device of the present invention will be described.
This will be described in detail with reference to the drawings. It goes without saying that the present invention is not limited to the following embodiments. FIG. 1 is a cross-sectional view illustrating a state during charging of the blood circulation promoting device according to the embodiment. FIG. 2 is a schematic cross-sectional view showing a state during charging of the blood circulation promoting device of the embodiment, which is cut in a direction orthogonal to the cross-sectional direction of FIG.

As shown in FIG. 1, the blood circulation promoting device according to the embodiment is a rechargeable blood circulation promoting device including a disc-shaped treatment device 1 and a charger 5. As shown in FIG. 4, the therapeutic device 1 includes an antenna 11, an IC for generating a therapeutic electromagnetic field from the antenna 11, an oscillation circuit unit 21 including a transistor Tr1, and the like, and a storage battery for driving the oscillation circuit unit 21. 2
And a charging circuit unit 2 for charging the storage battery 22 using an induced electromotive force generated in the antenna 11 by an external magnetic field (an AC magnetic field coming from outside the treatment device) received by the antenna 11.
3 respectively.

In the treatment device 1, a conductive pattern, which is an antenna 11 shown in FIG. 5, is provided on the back surface of a substrate 10 disposed at the bottom, and is placed on the substrate 10 just above the antenna 11. A storage battery 22 is provided. On the other hand, the charger 5 includes a bottom body 51a and an upper body 51b.
(A magnetic field generating unit) 65 for generating an AC magnetic field for an external magnetic field for charging, which is sent to the treatment device 1, and a case body comprising a case main body 51 and a lid 52. And a magnetic path through which an alternating magnetic field from the coil 65 passes.

The magnetic path is composed of a magnetic body 61 installed in the case body 51 and a magnetic body 62 installed on the back of the lid 52. As shown in FIGS. 2 and 3, the magnetic body 61 is a protruding piece 61 that rises from both side ends toward the magnetic body 62.
a, 61a, and a mounting portion 53 so that the treatment device 1 can be removably fitted between the protruding pieces 61a, 61a.
Is provided. Of course, the attachment and detachment of the treatment device 1
Remove and perform.

As shown in FIG. 2, the external magnetic field effectively acts on the antenna 11 through the magnetic path to efficiently generate an induced electromotive force at both ends of the antenna 11. In the case of this embodiment, the storage battery 22 is mainly made of a magnetic material, and the storage battery 22 is also a component of the magnetic path, so that it can be charged more efficiently. The frequency of the AC magnetic field as an external magnetic field from the coil 65 is a frequency different from the frequency of the therapeutic electromagnetic field, for example, a commercial frequency, but is not limited to the commercial frequency.

The (alternating current) flowing in the coil 65 to generate an alternating magnetic field may be obtained by providing a connection cord to the charger 5 and connecting it to a commercial power supply, or in the charger 5 such as a dry battery. A DC power supply may be provided, and the output may be obtained by converting the output with an orthogonal conversion circuit. Further, a switch is provided which performs a switching operation when the treatment device 1 is fitted into the attachment portion 53, and this switch allows a current to flow through the coil 65 only while the treatment device 1 is being attached, or emits light indicating that the battery is being charged. The diode may be illuminated.

In the blood circulation promoting device of the embodiment, the charging circuit 2
Reference numeral 3 includes a frequency detection circuit, a charge switching circuit, and a rectifier circuit. Normally, as shown in FIG. 6, a high-frequency voltage a is applied to both ends of the antenna 11 while alternately repeating the oscillation period t1 and the pause period t2, as shown in FIG. When the antenna 11 is mounted on the antenna 5 and receives an external magnetic field, a charging AC voltage (induced electromotive force) b is applied to the both ends of the antenna 11 as shown in FIG.

The frequency detection circuit checks the presence or absence of the low-frequency charging AC voltage b during the idle period t2 of the high-frequency voltage a.
If the frequency detection circuit determines that there is, the charge switching circuit stops the generation of the high-frequency electromagnetic field and switches from the treatment mode to the charge mode. With the switch to the charging mode, as shown in FIG.
Only the charging AC voltage b is generated, which is rectified by the rectifier circuit and converted into a DC voltage (see FIG. 9), and then sent to the battery 22, where the charging current I flows to charge the battery 22.

When the charging is completed, the treatment device 1 is detached from the charger 5, the charging AC voltage b is no longer generated in the antenna 11, and the frequency detecting circuit determines that there is no low-frequency charging AC voltage. Switches from the charging mode to the treatment mode, and again generates the high-frequency voltage a. In this embodiment, the charging circuit unit 23 is externally mounted. However, the charging circuit unit 23 may be incorporated in an IC of the oscillation circuit unit 21.

[0020]

Since the blood circulation promoting device according to the present invention has the above-described configuration, it has the following remarkable effects. Since the charging from the charger to the treatment device is a non-contact type using electromagnetic induction and not a contact type using an exposed terminal as in the past, there is no charging failure due to poor contact, and the waterproof structure Easy to take.

Since the antenna for generating the electromagnetic field for treatment is commonly used as the coil without providing a coil for receiving the alternating magnetic field from the charger, the dimensions of the treatment device,
No increase in weight is required. The charger has a magnetic path through which an external magnetic field for charging passes, and the therapeutic device to be charged is located in the mounting portion provided in the magnetic path, so that there is little loss during charging and charging can be performed efficiently. .

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state during charging of a blood circulation promoting device according to an embodiment.

FIG. 2 is a partial cross-sectional view showing a main part of the blood circulation promoting device of the embodiment.

FIG. 3 is a partial plan view showing a part of the inside of the charger of the blood circulation promoting device of the embodiment.

FIG. 4 is an electric circuit diagram of a treatment device of the blood circulation promoting device of the embodiment.

FIG. 5 is a plan view showing an antenna of a treatment device of the blood circulation promoting device of the embodiment.

FIG. 6 is a graph showing a waveform of a voltage induced at both ends of the antenna in the treatment mode of the blood circulation promoting device of the embodiment.

FIG. 7 is a graph showing a waveform of a voltage induced at both ends of the antenna when an external magnetic field is superimposed in the treatment mode of the blood circulation promoting device of the embodiment.

FIG. 8 is a graph showing a waveform of a voltage induced at both ends of the antenna in the charging mode of the blood circulation promoting device of the embodiment.

FIG. 9 is a graph showing the DC output of the rectifier circuit in the charging mode of the blood circulation promoting device of the example.

FIG. 10 is a cross-sectional view illustrating a state during charging of the blood circulation promoting device of the embodiment.

FIG. 11 is a partial plan view showing a part inside the charger of the conventional blood circulation promoting device.

FIG. 12 is an electric circuit diagram of a treatment device of a conventional blood circulation promoting device.

FIG. 13 is a plan view illustrating an antenna and a charging conductive terminal of a treatment device of a conventional blood circulation promoting device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Therapeutic device 5 charger 11 Antenna 21 Oscillation circuit part 22 Storage battery 23 Charging circuit part 53 Mounting part 65 Coil (magnetic field generation part)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61N 1/40 A61N 2/00

Claims (1)

(57) [Claims] 1. A treatment device comprising: a treatment device; and a charger, wherein the treatment device includes an antenna, an oscillation circuit for generating a therapeutic electromagnetic field from the antenna, a storage battery for driving the oscillation circuit, A charging circuit unit for charging the storage battery using an induced electromotive force generated in the antenna by an external magnetic field received by the antenna as a charging power source, wherein the charger includes:
A magnetic field generating unit that generates an alternating magnetic field for the external magnetic field, and a magnetic path through which an alternating magnetic field passes from the magnetic field generating unit, and a mounting unit for the treatment device provided in a portion of the magnetic path. Blood circulation promoting device.