JP6573823B2 - Beauty equipment - Google Patents

Description

  The present invention relates to a beauty device that promotes beauty by passing an electric current through a treatment site.

  Conventionally, in a beauty treatment, a beauty apparatus that promotes beauty by applying high-frequency current to the skin and applying ultrasonic vibration to the skin has been controlled in various ways to prevent burns due to excessive temperature rise. ing.

  For example, an ultrasonic device described in Patent Document 1 below includes a plurality of ultrasonic transducers in an ultrasonic generator for transmitting vibrations in contact with the skin. Each ultrasonic vibrator vibrates in a time-sharing manner, so even if the ultrasonic generator continues to be applied to a specific part of the skin, the vibration in the specific part is different for each ultrasonic vibrator. The temperature of the living body due to vibration is suppressed.

  In addition, the electrotherapy device described in Patent Document 2 below is a skin in which an electrode through which an electric current flows and a heater that is a heating source are provided in a conductor, and the conductor detects whether or not the conductor is attached to the skin. A detection circuit is provided. When the skin detection circuit detects the sticking of the conductor to the skin, the heater is controlled so that the temperature of the conductor does not exceed a predetermined value.

JP 11-89905 A JP-A-10-248939

  However, as described above, the ultrasonic device described in Patent Document 1 is a case where a specific part of the skin is intentionally stimulated because the vibration in the ultrasonic generator changes for each ultrasonic transducer. However, the stimulation may be dispersed and appropriate treatment may not be possible. Moreover, since the electrotherapy device described in Patent Document 2 is detected by the skin detection circuit whether or not the conductor is attached to the skin, it is necessary to reattach it every time the site to be treated changes, In addition, visual observation of the site to be treated is hindered.

  Thus, in order to prevent burns due to excessive temperature rise, it is necessary to control the output. The present invention has been proposed in view of the above circumstances. That is, an object of the present invention is to provide a beauty device that can appropriately control the output to allow a current to flow appropriately to a living body.

  In order to achieve the above object, a beauty apparatus according to the present invention includes a probe applied to a living body, a current detection unit that detects a current output to the probe, and whether the probe is applied to the living body. And a control unit that controls the output based on a change amount of the current detected in a state where the probe is applied to the living body, and a determination unit that determines the current based on the current detected by the current detection unit. And a section.

  The beauty device according to the present invention includes a reading processing unit that calculates an average value of the current within a predetermined reading time, and the determination unit determines whether the average value reaches a preset average threshold value. It is determined whether or not the probe is applied to the living body, and in the control unit, a change transition value based on a plurality of change amounts of the average value within a predetermined determination time is set as a change transition set in advance. The output is limited when it is equal to or less than a threshold value.

  The beauty device according to the present invention includes a counter that counts the change transition value that is equal to or less than the change transition threshold value, and the output is limited when a count value by the counter reaches a preset count threshold value. It is characterized by that.

  The beauty device according to the present invention includes a selection unit that selects the count threshold value from a first count threshold value and a second count threshold value different from the first count threshold value. When the count number at the output reaches the first count threshold, the initial output changes to a low output whose output is lower than the initial output, and the count number at the low output is the second count threshold. When the power reaches the low power, the low power is changed to another low power lower than the low power.

  The beauty device according to the present invention is characterized in that when the count number at the low output does not reach the second count threshold, the output changes to an output immediately before the low output.

  The beauty device according to the present invention is characterized in that the output changes to the initial output when the average value is less than the average threshold in the determination unit.

  The beauty device according to the present invention has the above-described configuration. That is, when the probe is moved in the living body and the contact portion between the living body and the probe is displaced, the current that is energized changes, so the amount of change in the current flowing through the living body when the probe is applied to the living body is calculated, The output is controlled based on the amount of change. Therefore, an electric current can be appropriately passed without giving an excessive temperature to the living body.

  The beauty device according to the present invention includes a reading processing unit that calculates an average value of currents within a predetermined reading time, and the determination unit determines whether the average value reaches a preset average threshold value. It is determined whether or not the probe is applied, and in the control unit, when the change transition value based on the amount of change of the plurality of average values within a predetermined determination time is equal to or less than a preset change transition threshold, The output is limited. That is, when the average value of the current is equal to or greater than the average threshold value, it is determined that the probe is applied to the living body. In this state, if the change transition value is equal to or less than the change transition threshold value, it is determined that the current change is small. Therefore, it is presumed that the contact portion between the living body and the probe is not displaced (the probe continues to hit the specific portion of the living body), and the output is limited. Therefore, an electric current can be appropriately passed without giving an excessive temperature to the living body.

  The beauty device according to the present invention is provided with a counter that counts a change transition value that is equal to or less than a change transition threshold, and the output is limited when the count by the counter reaches a preset count threshold. It is. With this configuration, the current is controlled by the amount until the count threshold is reached, so by arbitrarily changing the count threshold, the time for determining whether or not the probe continues to hit a specific part of the living body, Can be adjusted.

  The beauty device according to the present invention includes a selection unit that selects a count threshold value from a first count threshold value and a second count threshold value different from the first count threshold value. When the count number reaches the first count threshold, the initial output changes to a low output whose output is lower than the initial output, and when the count number at this low output reaches the second count threshold, the low value is reached. The output is changed to another low output lower than the low output. With this configuration, the output changes stepwise from the initial output to the low output. That is, since the first count threshold for delaying the change in current from the initial output to the low output is different from the second count threshold for delaying the change in current from the low output to another low output, The output decreases stepwise while maintaining moderate. Therefore, an electric current can be appropriately passed in consideration of the burden on the living body and the beauty effect.

  In the beauty device according to the present invention, when the count number at the low output does not reach the second count threshold, the output changes to the output immediately before the low output. That is, when the second count threshold is not reached, the output increases stepwise from the low output to the immediately preceding low output or the initial output. Therefore, an electric current can be appropriately passed in consideration of the burden on the living body and the beauty effect.

  In the beauty device according to the present invention, when the average value is less than the average threshold value in the determination unit, the output changes to the initial output. That is, when the average value of the current is less than the average threshold value, it is determined that the probe is not applied to the living body, and the current returns to the initial output. Therefore, it can operate efficiently.

1 is a schematic block diagram of a beauty device according to a first embodiment of the present invention. It is the reading process part schematic explanatory drawing by which description of the reading process part of the beauty device which concerns on 1st Embodiment of this invention was shown. It is the determination part schematic explanatory drawing by which description of the timing of the determination by the determination part of the beauty device which concerns on 1st Embodiment of this invention was shown. It is a control part schematic explanatory drawing by which description of the control part of the beauty device which concerns on 1st Embodiment of this invention was shown. It is output control schematic explanatory drawing by which description of the control of the output in the beauty device which concerns on 1st Embodiment of this invention was shown. It is output control schematic explanatory drawing by which description of control of the output in the beauty device which concerns on 2nd Embodiment of this invention was shown.

  Below, beauty device 10 concerning a 1st embodiment of the present invention is explained based on a drawing. FIG. 1 is a schematic block diagram of a beauty apparatus 10 according to the first embodiment of the present invention.

  As shown in FIG. 1, the beauty device 10 includes an output changeover switch 1 that selects an output of current, a microcomputer 2 that receives a signal from the output changeover switch 1, and a DC voltage applied to the microcomputer 2. , A status display LED 4 for displaying a current output state, a high-frequency generator 5 for generating a high-frequency current, and a high-frequency drive circuit for amplifying the current generated by the high-frequency generator 5 6 and an output electrode 7 as a probe that is applied to the skin of a person to be treated (not shown) and outputs a current that has passed through the high-frequency drive circuit 6, and current detection that detects a current output to the output electrode 7 And an overload detection circuit 9 that detects an overcurrent between the output electrodes 7. In the energization current detection circuit 8, the primary current of a high-frequency transformer (not shown) is converted into a voltage by a resistor and input to the microcomputer 2 as an analog current detection signal amplified by an operational amplifier (not shown).

  In the output changeover switch 1, the output is selected from the power supply OFF mode and the operation mode (power supply ON). As the operation mode, output levels 1 to 3 are arbitrarily selected according to the current output level. That is, when the output changeover switch 1 is operated, the modes are switched in the order of output level 3, output level 2, and output level 1 from the power supply OFF mode. Therefore, for example, it is possible to operate from the output level 2 by operating the output changeover switch 1 twice in the power OFF mode. The output in the operation mode increases in the order of output levels 1, 2, and 3. For example, the output level 1 is 70%, the output level 2 is 85%, the output level 3 is 100%, and the like. The level of the output level and the output level are arbitrary.

  In the following description, the initial output first selected in the power OFF mode is the initial output. For example, if output level 3 is first selected, output level 3 is an initial output, and if output level 2 is first selected, output level 2 is an initial output.

  The microcomputer 2 controls ON / OFF of the output gate. The control cycle is 100 ms, for example, and the control duty is determined according to the operation mode. For example, the control duty is 70% at output level 1, 85% at output level 2, 100% at output level 3, and the like. The control duty at each output level is arbitrary.

  The microcomputer 2 determines whether or not the output electrode 7 is applied to the skin based on the current detected by the energization current detection circuit 8 and the average value of the current within a predetermined reading time. And a control unit that controls the current output to the output electrode 7 based on the amount of change in current detected when the output electrode 7 is applied to the skin. .

  Here, processing in the reading processing unit will be described with reference to the drawings. FIG. 2 shows an explanation of the reading processing unit of the beauty apparatus 10 according to the first embodiment.

  As shown in FIG. 2, in the read processing unit, the current detection signal is AD (analog-digital) converted and read as data every 1 ms while the output gate of the microcomputer 2 is ON. The read data is recorded for a predetermined read time of 10 ms (ten recent data), and the average value of eight data obtained by removing the maximum and minimum values from the data is calculated. And recorded as average fixed data. Since updating of the average fixed data is executed every 1 ms, the average fixed data is also updated every time one of the ten data is updated. The predetermined reading time is arbitrary.

  Next, processing in the determination unit will be described.

  In the determination unit, whether or not the output electrode 7 is applied to the skin is determined based on whether or not the average determination data is equal to or greater than a predetermined average threshold value. If the average threshold is “16”, the result is as follows.

Output electrode 7 is not applied to skin (no load state): average value <16 (transformer primary current about 85 mA)
The output electrode 7 is applied to the skin (loaded state): average value ≧ 16 (transformer primary current about 85 mA)
Output electrode 7 is applied to skin (overload state): average value> 117 (transformer primary current about 630 mA)

  That is, in the determination unit, if the average finalized data is less than the average threshold value, it is estimated that the load is not applied to the output electrode 7, and it is determined that the output electrode 7 is not applied to the skin. On the other hand, if the average finalized data is equal to or greater than the average threshold value, it is estimated that a load is applied to the output electrode 7 and it is determined that the output electrode 7 is applied to the skin.

  In order to make a determination in the output stabilization period, the determination unit is executed immediately before the output gate is turned off at an output gate control cycle (100 ms) interval.

  Here, the determination timing in the determination unit will be described with reference to the drawings. FIG. 3 shows an explanation of the determination timing in the determination unit of the beauty apparatus 10 according to the first embodiment.

  As shown in FIG. 3, for example, if the operation mode is output level 2 (control duty 85%), the microcomputer 2 has a control period of 85 ms, which is just 85 ms immediately before the output gate is switched from ON to OFF. Judgment is performed.

  Next, the process in a control part is demonstrated based on drawing. FIG. 4 shows a description of the control unit of the beauty device 10 according to the first embodiment, and FIG. 5 shows a description of control of the output of the beauty device 10.

  When the output electrode 7 is moved on the skin and the contact portion between the skin and the output electrode 7 is displaced, the energized current changes. Therefore, in the control unit, when the change transition value based on the amount of change of the plurality of average confirmed data within the predetermined determination time is equal to or less than a preset change transition threshold, the current change is small, and the skin It is determined that the contact portion with the output electrode 7 is not displaced, and the output is limited. Further, the control unit is provided with a counter that counts a change transition value that is equal to or less than the change transition threshold, and the output is limited when the count number by the counter reaches a preset count threshold. The predetermined determination time, change transition threshold, and count threshold are arbitrary.

  For example, when the predetermined judgment time is “3 seconds”, the change transition threshold is “2”, and the count threshold is “5”, in detail, the output electrode 7 is applied to the skin (loaded state). At the same timing as the determination in the determination unit (immediately before the output gate is turned off in 100 ms), the average determination data at that time is captured. As shown in FIG. 4, the average finalized data is accumulated for 3 seconds, which is a predetermined determination time (that is, since the average finalized data is determined at intervals of 100 ms, 30 average finalized data are stored. The difference between the maximum value and the minimum value is calculated as the change transition value. If this change transition value is 2 or less, which is the change transition threshold, it is determined that there is little change in current, and the contact part between the skin and the output electrode 7 is not displaced (the output electrode 7 hits a specific part of the skin). The counter is incremented. On the other hand, if the change transition value is 3 or more, it is determined that the current is changing, and the contact portion between the skin and the output electrode 7 is displaced (the output electrode 7 does not stay at the specific portion of the skin, It is presumed that it slides along the skin and is applied to various parts), so the counter is cleared. This process is executed every time 30 pieces of average finalized data are fetched (every 3 seconds).

  When the counter continues to be incremented and the count reaches 5 which is the count threshold (that is, when the average finalized data for 30 counts 5 times and 15 seconds elapses), the output electrode 7 becomes a specific part of the skin Therefore, the output is reduced to 10% close to the power-off mode. At that time, the counter is cleared.

  As shown in FIG. 5, when it is determined that there is little movement of the output electrode 7 with respect to the skin within 15 seconds, the output decreases, and an indicator (not shown) provided near the output electrode 7 is displayed. Flashes. In the determination unit, if the average finalized data is less than the average threshold, the initial output, which is the previous output, is returned. Specifically, regardless of the output level of the initial output, if the average finalized data is less than the average threshold of 16, it is estimated that the output electrode 7 is not loaded, and the output electrode 7 is applied to the skin. Since it is determined not to be applied, the output level is returned to one of the initial output levels.

  When the control unit is not equipped with a counter, the output immediately decreases if the change transition value is equal to or less than the change transition threshold.

  Next, effects of the first embodiment will be described.

  As described above, according to the first embodiment, in the read processing unit, the current detection signal is AD (analog-digital) converted and read as data every 1 ms, and the read data has a predetermined read time of 10 ms. Minutes (ten recent data) are recorded, and an average value of eight data obtained by removing the maximum value and the minimum value from the data is calculated and recorded as average fixed data. If the average finalized data is 16 or more which is an average threshold value, it is estimated that a load is applied to the output electrode 7, and it is determined that the output electrode 7 is applied to the skin. The average fixed data captured in this loaded state is accumulated for 3 seconds, which is a predetermined determination time, and the difference between the maximum value and the minimum value is calculated as the change transition value. If this change transition value is 2 or less, which is the change transition threshold value, it is determined that there is little change in current, and it is estimated that the contact site between the skin and the output electrode 7 is not displaced, so the counter is incremented. The If the counter continues to be incremented and the count reaches 5 which is the count threshold, it is estimated that the output electrode 7 continues to hit a specific part of the skin, so the output drops to 10%, which is close to the power OFF mode. To do.

  Thus, the amount of change in the current flowing through the skin is calculated, and the output is controlled based on this amount of change. Therefore, an electric current can be appropriately passed without giving an excessive temperature to the skin.

  Further, since the current is controlled by the amount until the count threshold is reached, the current output to the output electrode 7 can be reduced at an arbitrary timing. That is, by arbitrarily changing the count threshold, it is possible to adjust the time for determining whether or not the output electrode 7 continues to hit a specific part of the skin.

  According to the first embodiment, the determination unit estimates that no load is applied to the output electrode 7 if the average finalized data is less than the average threshold value of 16, regardless of the output level of the initial output. Since it is determined that the output electrode 7 is not applied to the skin, the output level returns to one of the initial output levels. Therefore, it can operate efficiently.

  According to the first embodiment, since it is not configured to prevent temperature rise by being dispersed in a plurality of electrodes, and is not configured to be attached to the treatment site, the practitioner can perform the treatment while being aware of the treatment site. it can.

  Next, a beauty apparatus 20 according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 6 illustrates the control of the output of the beauty device 20 according to the second embodiment of the present invention.

  According to the beauty device 20, when the determination unit estimates that the load is applied to the output electrode 7 and determines that the output electrode 7 is applied to the skin, as illustrated in FIG. The output gradually decreases from the initial output to the low output. Here, the low output means an arbitrary output lower than the initial output when the initial output is used as a reference, and an arbitrary output lower than the low output when the low output is used as a reference. For example, in FIG. 6A, if the initial output is output level 3, each output of 85%, 70%, 55%, which is 15% lower than the initial output, and 10% close to the power OFF mode. However, each has a low output. On the other hand, if a low output of 70% is used as a reference, 55% and 10% lower than that are low outputs. Instead of such arbitrary values, the output level 2 and the output level 1 may be set to low output, and the output may be reduced step by step from the output level 3 to the output level 1.

  According to the beauty device 20, as shown in FIG. 6, the interval (9 seconds) until the output is reduced at the initial output is different from the interval (6 seconds) until the output is reduced at the low output. Therefore, the microcomputer 2 selects the count threshold according to the output. That is, a selection unit is provided that selects a count threshold from a first count threshold and a second count threshold different from the first count threshold. The first count threshold is selected at the initial output, and the second count threshold is selected at the low output. Therefore, the output changes from the initial output to the low output when the count number at the initial output reaches the first count threshold, and the output is lower than the low output when the count number at the low output reaches the second count threshold. Also changes to a low value and low output. Each count threshold is arbitrary, and the count threshold may be the same for each output.

  For example, if the first count threshold is set to “3” and the second count threshold is set to “2”, the initial output is output when the initial output is output level 3 as shown in FIG. Since the first count threshold value is selected, when the count number reaches the first count threshold value 3 (that is, when the average confirmed data for 30 counts three times and 9 seconds elapses), the output is , Drop to a low output of 85%. Since the second count threshold value is selected at low output, if the count number reaches 2 which is the second count threshold value (that is, if the average finalized data for 30 counts twice and 6 seconds elapse), The output drops to a low output of 70%. Similarly, since the second count threshold is selected at low output, when the count number reaches 2 (after 6 seconds), the output decreases to 55% and 10% low output.

  In the control unit of the beauty device 20, when the count number at the low output does not reach the second count threshold, the output changes to the output immediately before the low output. For example, if the second count threshold value is described in detail as “2”, as shown in FIG. 6A, if the count number at a low output of 85% is less than the second count threshold value of 2, it will change. Since the transition value exceeds the change transition threshold, it is determined that the current has changed, and the contact portion between the skin and the output electrode 7 has changed (the output electrode 7 does not stay at a specific portion of the skin, The counter is cleared and the output level 3 returns to the previous output. Similarly, if the output is 55%, the output is returned to the previous output of 70%.

  In the determination unit of the beauty apparatus 20, if the average finalized data is less than the average threshold at low output, the output returns to the initial output. For example, if the average threshold value is described in detail as “16”, the initial output is output level 3 as shown in FIG. 6A, but the output is controlled and operating at a low output of 85%. In this case, if the average finalized data is less than the average threshold of 16, it is estimated that the load is not applied to the output electrode 7, and it is determined that the output electrode 7 is not applied to the skin. Return from low output to output level 3, which is the initial output. Similarly, as shown in FIG. 6B, when the initial output is the output level 2, the output level returns from the low output of 70% and 55% to the output level 2 that is the initial output.

  Next, effects of the second embodiment will be described.

  As described above, according to the second embodiment, the selection unit that selects the count threshold from the first count threshold and the second count threshold different from the first count threshold is provided. For example, at the output level 3 that is the initial output, the first count threshold is selected, and when the count reaches the first count threshold of 3 (when 9 seconds have elapsed), the output drops to a low output of 85%. . When the output is low, the second count threshold is selected, and when the count reaches 2 which is the second count threshold (after 6 seconds), the output decreases to a low output of 70%.

  That is, the first count threshold for delaying the change in current from the initial output to the low output is different from the second count threshold for delaying the change in current from the low output to another low output. The output changes stepwise from the initial output to the low output while maintaining moderately. Therefore, an electric current can be appropriately passed in consideration of the burden on the skin and the beauty effect.

  According to the second embodiment, for example, if the count number at a low output of 85% is less than 2 which is the second count threshold, the change transition value exceeds the change transition threshold, so the current changes. Since it is estimated that the contact portion between the skin and the output electrode 7 has changed, the output level 3 returns to the previous output. Similarly, if the output is 55%, the output is returned to the previous output of 70%. In this way, the output gradually returns from the low output to the previous low output or the initial output. Therefore, an electric current can be appropriately passed in consideration of the burden on the skin and the beauty effect.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to the said embodiment. The present invention can be modified in various ways without departing from the scope of the claims. The present invention can be realized as a control method of a beauty device in addition to the beauty device.

1 Output changeover switch 2 Microcomputer 3 Power supply 4 Status display LED
5 High-frequency generator 6 High-frequency drive circuit 7 Output electrode (probe)
8 Energizing current detection circuit (current detection unit)
9 Overload detection circuit 10, 20 Beauty device

Claims (3)

A probe applied to a living body;
A current detector for detecting a current output to the probe;
A determination unit that determines whether or not the probe is applied to the living body based on the current detected by the current detection unit;
A control unit for controlling the output based on a change amount of the current detected in a state where the probe is applied to the living body;
A read processing section average value of the current within a predetermined read time is calculated, is provided, et al is,
In the determination unit, it is determined whether or not the probe is applied to the living body depending on whether the average value reaches a preset average threshold value,
In the control unit, when a change transition value based on a plurality of change amounts of the average value within a predetermined determination time is equal to or less than a preset change transition threshold, the change transition is equal to or less than the change transition threshold. When the value is counted by a counter and the count reaches a preset count threshold, the output is limited, and
A selection unit for selecting the count threshold value from a first count threshold value and a second count threshold value different from the first count threshold value;
When the count number in the initial output, which is the initial output among the outputs, reaches the first count threshold, the initial output is changed to a low output lower than the initial output. When the count number at reaches the second count threshold, the low output is changed to another low output lower than the low output .
A beauty device characterized by that. Wherein the count in the low output, when that did not reach the second count threshold, the output you change the output immediately before the low output,
The beauty device according to claim 1, wherein: If the average value in the evaluation unit is less than the average threshold, the output change the initial output,
The beauty device according to claim 1 or 2, characterized in that

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