JPH01293881A - Blood circulation promoting apparatus - Google Patents

Abstract

PURPOSE:To eliminate a side effect due to excessive efficaciousness and to effectively utilize electric power, by controlling output by a temp. sensor and an output variable circuit so that said output increases when bodily temp. is low at the time of mounting the device and decreases when the bodily temp. is high. CONSTITUTION:A unit case 1 formed into a circular flat small piece is provided so as to be mounted on the region to be mounted if the body. A high frequency generating circuit is provided to the internal space of the unit case 1 and has a power supply circuit 4 equipped with a battery, an oscillation circuit 6 equipped with a modulation circuit 5 and an antenna 7. The oscillation circuit 6 is formed as a Colpitts type LC oscillation circuit equipped with a resistor R2 other than a transistor Q1, condensers C1, C2 and an inductance (antenna) L1 and the condensers C1, C2 are also used as temp. sensors. By setting each of the condensers C1, C2 to one having a positive temp. coefficient, control making oscillation frequency variable so that frequency becomes high with a rise in bodily temp. and becomes low with a falling in the bidily temp. becomes possible.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a blood circulation promoting device.

[Conventional 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.

Therefore, a blood circulation promoting device was developed for this purpose. This blood circulation promoting device is used by being attached directly to areas where blood circulation is stagnant, such as stiffness. Recently, such a device has been constructed by incorporating a high-frequency generating circuit, a battery to drive it, and an antenna that forms an electromagnetic field by the action of the circuit into a case that is attached to the watch part. something is proposed. Since this device is unitized, it has the advantage of being extremely convenient to handle.

By the way, conventional blood circulation promoting devices are equipped with an externally operated switch, and the power is turned on and off using this switch, but with this device, it is necessary to carefully operate the switch, which is troublesome. Moreover, there were problems such as forgetting to turn off the switch when not in use, wasting battery power, and forgetting to turn off the switch when in use, resulting in no electromagnetic field being generated.

[Problem to be solved by the invention]

Therefore, the present applicant has developed a blood circulation system that eliminates the trouble of operating switches, eliminates the waste of batteries when not in use, and eliminates troubles such as unexpected electromagnetic fields. A promoting device has been disclosed (see Utility Model Application No. 186035/1983). The device is equipped with a temperature sensor and an antenna current control circuit, and when it is attached, the amount of current flowing to the antenna increases, emitting an electromagnetic field from the antenna to the extent necessary to promote blood circulation, and when it is removed, the amount of current flowing to the antenna increases. The amount of current had decreased to an extremely small level. According to this device, a constant electromagnetic wave was generated regardless of whether the body temperature was high or low, so when the body temperature was low, the electromagnetic waves promoted blood circulation, which was preferable, but when the body temperature was high, blood circulation was promoted to an even greater extent. Electromagnetic waves act even when the patient is in the room, which has drawbacks such as side effects due to excessive effectiveness and wasteful consumption of electricity.

In view of the above circumstances, it is an object of the present invention to eliminate the adverse effects of side effects caused by over-efficiency, and to suppress unnecessary power consumption while allowing power to be used effectively when necessary.

[Means to solve the problem]

In order to solve the above problem, the present invention includes a circuit including a temperature sensor and an output variable circuit that changes the electromagnetic field output from the antenna based on temperature detection by the temperature sensor, and the circuit includes the above-mentioned When worn, the output is controlled so that when the body temperature is low, the output increases, and when the body temperature is high, the output decreases.

[For production]

By using a temperature sensor and a variable output circuit, the output is controlled so that when the body temperature is low, the output is large, and when the body temperature is high, the output is small. When the temperature is high, power consumption is low and electromagnetic waves do not have an excessive effect on the body.

〔Example〕

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

1 to 6 show an embodiment of the blood circulation promoting device according to the present invention. As shown in FIG. 1, this blood circulation promoting device includes a unit case 1 which is a small circular and flat piece, and this unit case 1 is connected to a second
As shown in the figure, it is designed to be attached to the body part. That is, the unit case 1 is attached to the attachment site with the bottom wall 2 facing toward the body. To attach it, a bandage 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 includes a power supply circuit 4 equipped with a battery, an oscillation circuit 6 equipped with a modulation circuit 5, and an antenna 7. The waveform from the output terminal of the oscillation circuit 6 is shown in FIG. 4 F81 and (bl). FIG. The same figure (b) shows the inverse output waveforms.The output voltage vpp and oscillation time T in these output waveforms.

, the stop time T2, and the oscillation period t can be changed according to the setting of circuit constants and the value of the inductance of the antenna 7.

A more specific version of these circuits is shown in FIG. The oscillation circuit 6 is a Colpitts-type LC oscillation circuit that includes a resistor R2 in addition to a transistor Ql, a capacitor C, , C, and an inductance (antenna) L, and on the emitter side of the transistor Q1, GND
A resistor R1 is connected between the two. Said capacitor C
,,C2 also serves as a temperature sensor, but by making the capacitors C, ,C, have a positive temperature coefficient, the frequency increases as the body temperature rises, and the frequency increases as the body temperature decreases. Accordingly, it becomes possible to control the oscillation frequency to be variable so that the frequency becomes lower. Figure 6 shows that as body temperature rises, the capacitance of capacitors C1 and C2 increases, which lowers the oscillation frequency f, and as body temperature falls, capacitor C
3. This is a graph showing the relationship in which the oscillation frequency f gradually increases as the capacitance of C2 decreases. The modulation circuit 5 includes resistors R1 to R6, capacitors C*+C4,
It is considered to be a multi-pie break consisting of transistors Qz and Ql. The oscillation output of the modulation circuit 5 causes a Hass current to flow through the transistor Q of the oscillation circuit 6, causing the oscillation circuit 6 to perform an oscillation operation. As a result, an electromagnetic field modulated by the output of the modulation circuit 5 is generated, and the electromagnetic field is transmitted to the antenna 7 coupled to the inductance L1.
It is designed to be radiated to the deposition site via the. As a result, when the body temperature is high, the oscillation frequency f is low (by this, the electromagnetic wave output from the antenna 7 is suppressed to a low level, eliminating side effects and unnecessary power consumption. When the body temperature is low, the oscillation frequency f becomes low). As the frequency f becomes higher, the electromagnetic wave output from the antenna 7 becomes higher and the blood circulation promoting effect is effectively exhibited.

FIG. 7 shows the second embodiment. In this embodiment, a monostable multi-high break circuit 8 is inserted between the modulation circuit 5 and the oscillation circuit 6. The circuit 8 is an integrated circuit ICI
(4528), a temperature thermistor Rth, and a capacitor Cs, and also includes resistors R2 and R7. By inserting the monostable multi-high break circuit 8, the oscillation period TI (fourth
(see figure) is variable. If a negative temperature characteristic thermistor (NTC) is used as the temperature thermistor Rth in FIG. 7, the oscillation period TI can be narrowed down due to a rise in body temperature. As a result, when the body temperature is high, the oscillation period T1 is controlled to be short, so that the electromagnetic wave output from the antenna 7 is suppressed to a small value, and there is no adverse effect of side effects, and wasteful power consumption is also eliminated. When the body temperature is low, the oscillation period T,
By being controlled for a long time, the electromagnetic wave output from the antenna 7 becomes high, and the blood circulation promoting effect is effectively exhibited.

FIGS. 8 and 9 illustrate the third embodiment. This embodiment includes an output voltage control circuit 10 that changes the output voltage value ■ρp of the oscillation circuit in accordance with body temperature.

The control circuit 10 controls the output voltage value to be small, such as VIlpl, when the body temperature is high, and to increase the output voltage value, such as vppz, when the body temperature is low, based on the output signal from the temperature detection circuit 9. . As a result, when the body temperature is high, the output voltage value becomes small, so that the electromagnetic wave output from the antenna 7 is suppressed to a small value, and there is no adverse effect of side effects, and wasteful power consumption is also eliminated. When the body temperature is low, the output voltage value becomes large, so that the electromagnetic wave output from the antenna 7 becomes high, and the blood circulation promoting effect is effectively exhibited.

〔Effect of the invention〕

Since the blood circulation promoting device according to the present invention is configured as described above, there is no problem such as side effects caused by over-efficiency, and unnecessary power consumption is suppressed, while electric power is used effectively to promote blood circulation when necessary. Now it can be used for.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the first embodiment of the blood circulation promoting device according to the present invention, FIG. 2 is a perspective view of the device in its installed state, FIG. 3 is a block diagram of the circuit inside the device, and FIG. The output waveform from the oscillation circuit is shown in FIG. 6 is a graph showing how the oscillation frequency changes due to changes in capacitor capacitance due to body temperature, FIG. 7 is a circuit diagram showing the second embodiment, and FIG. 8 is a graph showing the third embodiment. The circuit block diagram shown in FIG. 9 is a reverse output waveform diagram from the oscillation circuit in the same embodiment. 3... Mounting means 4... Power supply circuit (battery) 6... Oscillation circuit (high frequency generation circuit) 7...Antenna C3, Cz, Rt
h...Temperature sensor agent Patent attorney Takehiko Matsumoto Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. It is equipped with an antenna, a high-frequency generation circuit that forms an electromagnetic field through the antenna, and a battery that drives this circuit, and is attached to the application site by an attachment means to promote blood circulation in the body. In the blood circulation promoting device, the circuit includes a temperature sensor and a variable output circuit that changes the electromagnetic field output from the antenna based on the temperature detected by the temperature sensor, and the circuit includes a temperature sensor that changes the electromagnetic field output from the antenna when the circuit is worn. A blood circulation promoting device characterized in that the output is controlled so that the output is increased when the body temperature is low and the output is decreased when the body temperature is high.