JP2533883B2 - Blood circulation device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a blood circulation promoting device.

[Background technology]

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

Therefore, a blood circulation promoting device for that purpose has been developed. This blood circulation promoting device is used by being directly attached to a site where blood circulation retention occurs such as a dust. As such a device, recently, in a case attached to the affected area, a high frequency generating circuit,
It has been proposed that one unit is configured by incorporating a battery that drives this and an antenna that forms an electromagnetic field by the function of the circuit. Since this device is unitized, it has advantages such as very convenient handling.

By the way, the conventional blood circulation promoting device is provided with an externally operated switch, and the power is turned on and off by this switch. As a result, it is troublesome to turn the switch on and off, and when it is not in use, it forgets to turn off the switch and wastes battery power. I had some trouble.

[Object of the Invention]

In view of the above circumstances, the present invention eliminates the trouble of turning on and off the switch, eliminates wasteful consumption of the battery when not in operation, and causes a trouble such as an unexpected occurrence of an electromagnetic field. It is an object of the present invention to provide a blood circulation accelerating device that eliminates the problem.

[Disclosure of Invention]

To achieve the above object, the present invention provides an antenna,
In a blood circulation promoting device comprising a high frequency generating circuit for forming an electromagnetic field through this antenna and a battery for driving this circuit, which is attached to an adhered portion by a device means to promote blood circulation in the body. The circuit includes a temperature sensor and an antenna current control circuit that changes the amount of current flowing to the antenna based on the temperature detection of the temperature sensor, and the amount of current to the antenna increases when the antenna is attached to the antenna. The gist of the blood circulation promoting device is characterized in that an electromagnetic field of a degree required for blood circulation promotion is radiated from the device and the amount of current to the antenna is reduced to an extremely small amount when detached.

Hereinafter, the present invention will be described in detail with reference to the drawings showing an embodiment thereof.

1 to 5 show an embodiment of a blood circulation promoting device according to the present invention. This blood circulation device
As shown in FIG. 1, a unit case 1 which is a circular and flat small piece is provided. As shown in FIG. 2, the unit case 1 is adapted to be attached to a body part to be attached. There is. That is, the unit case 1 is attached to the attachment site with the bottom wall 2 thereof facing the body. For the attachment, a plaster 3 is used or a round double-sided adhesive sheet having the same size as the bottom wall 2 is used.

The unit case 1 has a space inside, and a high frequency generating circuit as shown in FIG. 3 is provided in the space. This circuit has a power supply circuit 4 including a battery, an oscillation circuit 6 including a modulation circuit 5, and an antenna 7. The waveform from the output terminal of the oscillation circuit 6 is shown in FIGS. 4 (a) and 4 (b). The figure (a) shows the waveform modulated by the modulation circuit 5 as an example of the output from the oscillation circuit 6, and the figure (b) shows the original output waveform. The output voltage Vpp, the oscillation time T ₁ , the stop time T ₂ , and the oscillation cycle t in these output waveforms are set by the circuit constants,
It can be changed according to the value of the inductance of the antenna 7.

By the way, the oscillation circuit 6 is provided with a temperature detection circuit 9 as shown in FIG. 3, and the temperature detection circuit 9 can control the oscillation circuit 6 to adjust the current output to the antenna 7. It is like this.

A more specific version of these circuits is shown in FIG. The oscillation circuit 6 is a Colpitts-type LC oscillation circuit including a resistor R _{2 in} addition to a transistor Q ₁ , capacitors C ₁ and C ₂ , an inductance (antenna) L ₁ , and
A thermistor R _TH, which is a main part of the temperature detection circuit 9, is provided on the emitter side of the transistor Q ₁ . As shown in FIG. 1, the thermistor R _TH is provided at the central position of the bottom wall portion 2 inside the unit case 1. The modulation circuit 5 is
Resistor R ₃ to R _4, a capacitor C _3, C _4, there is a multivibrator comprising transistors Q _2, Q _3. A base current flows through the transistor Q ₁ of the oscillation circuit 6 by the oscillation output of the modulation circuit 5, so that the oscillation circuit 6 oscillates. As a result, an electromagnetic field modulated by the output of the modulation circuit 5 is generated, and the electromagnetic field is radiated to the adhered site via the antenna 7 coupled to the inductance L ₁ .

By the way, the thermistor R _TH is a unit case 1
Detects the temperature based on the body temperature when it is attached to the adhered part, and the resistance value greatly decreases based on the detected output, and the current value flowing to the inductance L ₁ through the antea current control circuit by the transistor Q ₁ etc. is detected. increase.
As a result, the electromagnetic field from the antenna 7 is strongly radiated to the extent necessary to promote blood circulation. The thermistor R _TR detects the room temperature lower than the body temperature by removing the unit case 1 from the adhered site, and the resistance value increases based on the detected output, and the current value flowing through the inductance L ₁ is extremely small. Reduce it to any extent. As a result, the electromagnetic field from the antenna 7 becomes extremely weak.

As described above, the circuit includes the temperature sensor and the antenna current control circuit that changes the amount of current flowing to the antenna based on the temperature detection of the temperature sensor, and the amount of current to the antenna increases when the antenna is mounted. As a result, the antenna emits an electromagnetic field that is necessary for promoting blood circulation, and the amount of current to the antenna is reduced to a very small amount when it is removed. This eliminates the need to operate the device, which prevents the user from forgetting to turn off the switch or forgetting to turn it on, which eliminates wasteful consumption of the battery capacity when not in use, and ensures that electromagnetic field radiation is obtained during use.

The current of the antenna may be controlled by changing the voltage instead of the resistance.

〔The invention's effect〕

As has been described above, the blood circulation promoting apparatus according to the present invention includes an antenna, a high-frequency generation circuit that forms an electromagnetic field through the antenna, and a battery that drives the circuit, and is attached to the attachment site by the attachment means. In a blood circulation promoting device that is adapted to promote blood circulation in the body, the circuit includes a temperature sensor, and an antenna current control circuit that changes the amount of current flowing to the antenna based on temperature detection by the temperature sensor. In order to increase the amount of electric current to the antenna when the device is attached, and to radiate an electromagnetic field of a degree necessary for promoting blood circulation from the antenna, the amount of electric current to the antenna is reduced to an extremely small amount when detached. Since it is characterized by that, it eliminates the trouble of turning on and off the switch and eliminates the wasteful consumption of the battery when not in use. Also measured is the also no trouble such as that the electromagnetic field did not occur.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a blood circulation promoting device according to the present invention, FIG. 2 is a perspective view showing the mounted state, FIG. 3 is a circuit block diagram inside the device, and FIG. 4 is an oscillation. The output waveform from the circuit is shown in FIG. 6A, which is an output waveform diagram after being modulated, and FIG.
FIG. 5 is a circuit diagram of the blood circulation promoting apparatus of the above embodiment. 3 ... Mounting means, 6 ... Oscillation circuit, 7 ... Antenna, 9
...... Temperature detection circuit.

Claims (2)

(57) [Claims] 1. An antenna, a high-frequency generation circuit for forming an electromagnetic field through the antenna, and a battery for driving the circuit, which are attached to an attachment site by a device means to promote blood circulation in the body. In the blood circulation promoting apparatus, the circuit includes a temperature sensor and an antenna current control circuit that changes the amount of current flowing to the antenna based on the temperature detection of the temperature sensor, and the Blood flow is increased by increasing the amount of current flowing through the antenna, and the amount of current to the antenna is reduced to an extremely small amount when detached. apparatus. 2. The blood circulation promoting apparatus according to claim 1, wherein the temperature sensor is composed of a negative resistance thermistor.