WO2019009477A1

WO2019009477A1 - Device and method for controlling impedance matching for very high frequency treatment device

Info

Publication number: WO2019009477A1
Application number: PCT/KR2017/014065
Authority: WO
Inventors: 윤정섭; 김원기; 김명선; 전세훈
Original assignee: 대양의료기(주)
Priority date: 2017-07-05
Filing date: 2017-12-04
Publication date: 2019-01-10

Abstract

The present invention relates to a device and method for controlling impedance matching for a very high frequency treatment device and, more particularly, to a device for controlling impedance matching for a very high frequency treatment device, wherein the device for controlling impedance matching is provided in a very high frequency treatment device comprising a very high frequency emitter for emitting a very high frequency on the skin, and comprises a first variable capacitor for measuring impedance within the very high frequency treatment device and a second variable capacitor for measuring impedance within the body of a person receiving treatment. The present invention enables impedance matching between impedance within a very high frequency treatment device and impedance within the body of a person receiving treatment, and thus can efficiently transfer energy to the skin when a very high frequency treatment is performed, and stably maintain an output of a very high frequency.

Description

IMPEDANCE MATCHING CONTROL DEVICE FOR MULTI-WAVE THERAPY DEVICE AND METHOD THEREOF

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impedance matching controller for a microwave treatment apparatus and a control method thereof. More particularly, the present invention relates to an impedance matching apparatus for impedance matching in a microwave treatment apparatus, To an impedance matching controller for a microwave treatment device capable of matching an impedance in a body and a control method thereof.

Generally, a microwave treatment apparatus is a device for treating subcutaneous tissues in the skin using high frequency or ultrasonic waves.

Recently, there is a growing demand for treatments for reducing subcutaneous fat using microwave therapy devices. Such a microwave treatment apparatus is mainly used to induce fat reduction by apoptosis while irreversibly denatureing subcutaneous fat by heating subcutaneous fat with electromagnetic energy using microwaves such as high frequency (RF) and ultrasonic waves .

In this regard, Korean Patent Laid-Open Publication No. 2013-0112808 'Fat Loss Device and Method for Improving Obesity " simply measures and displays the impedance in the skin tissue to measure and measure only the fat in the skin tissue. You can not match the physician's impedance within the body. Therefore, there is a problem that the energy transfer efficiency is lowered due to the difference between the impedance in the microwave treatment device and the impedance in the body of the recipient during the treatment of the skin by outputting microwave, and the output of the microwave is unstable.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for efficiently delivering energy to the skin during microwave treatment by matching the impedance in the microwave treatment apparatus with the impedance in the body of the subject, An impedance matching apparatus for a microwave treatment apparatus, and a microwave treatment apparatus having the same.

According to an aspect of the present invention, there is provided an impedance matching controller for a microwave therapy apparatus, including a first variable capacitor for measuring an impedance in a microwave treatment device, and a second variable capacitor for measuring impedance in the body of the subject, The first variable capacitor and the second variable capacitor are fixed to predetermined capacitance values, and the impedance of the first variable capacitor and the second variable capacitor An initial setting unit for setting an initial setting value; An impedance matching unit for calculating an initial standing wave ratio value when the impedance in the microwave therapy device and the impedance matching in the body of the subject are first performed while changing the electrostatic capacitance value of the first variable capacitor and the electrostatic capacitance value of the second variable capacitor, ; And adjusting the electrostatic capacity of the first variable capacitor according to the impedance of the current microwave therapy device and the impedance matching state of the physician in the body based on a result of comparing the calculated first standing wave ratio value and the reference standing wave ratio value, And an impedance matching controller for controlling the impedance and the in-body impedance matching of the physician.

The impedance matching unit may further include: a signal converter for converting a transducer signal and a reflected wave signal, which are measured while varying the electrostatic capacitance value of the first variable capacitor and the electrostatic capacitance value of the second variable capacitor, into a digital signal; A noise filtering unit for filtering noise of a transducer wave signal and a reflected wave signal converted into a digital signal; And an impedance matching performing unit for calculating a first standing wave ratio value based on the filtered transfer wave signal and the reflected wave signal.

The impedance matching controller may include an impedance matching determiner for determining an operating state of the microwave therapy device, an impedance in the first microwave therapy device, and an impedance matching in the body of the subject; A standing wave ratio comparing unit for comparing the calculated standing wave ratio value with a reference standing wave ratio value when it is determined that the operating state of the microwave treatment apparatus is ON and the impedance in the first microwave therapy apparatus and the in-body impedance matching of the physician are performed; As a result of the comparison, if the calculated standing wave ratio value exceeds the reference standing wave ratio value, the impedance matching state determination unit recognizes the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician; And a first variable capacitor adjuster for adjusting the capacitance of the first variable capacitor according to the impedance of the current microwave therapy device and the impedance matching state of the physician in the body.

The impedance matching state determiner may be configured to determine an impedance in the current microwave therapy device and a body impedance matching state of the subject in a first averaging state, an ACTION state, a second averaging state, Or the like.

The first variable capacitor adjuster calculates an average value of a standing wave ratio value according to a predetermined number of times when it is determined that the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician are in a first averaged state, And a first averaging state controller for storing an average value of the non-value and then changing the impedance in the current microwave therapy device and the in-body impedance matching state of the physician to an operating state.

Also, the first variable capacitor adjuster may determine the direction of the first variable capacitor when it is determined that the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are in an operating state, and determine the direction of the first variable capacitor The first variable capacitor is adjusted in the positive direction when the first variable capacitor is 'True', and the negative capacitance is adjusted in the negative direction if the first variable capacitor is in the direction of 'False' And an operation state control unit for changing the in-apparatus impedance and the in-body impedance matching state of the subject to a second averaged state.

The first variable capacitor adjuster may calculate an average value of a standing wave ratio value according to a predetermined number of times when it is determined that the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician are in a second averaged state, And a second averaging state controller for storing the average value of the non-value and then changing the impedance in the current microwave therapy device and the in-body impedance matching state of the physician to an end state.

In addition, if it is determined that the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are in the end state, the first variable capacitor adjuster adjusts the impedance in the current microwave therapy device and the impedance matching state of the subject in the first averaging state And a final state control unit for comparing the calculated current standing wave ratio value with the initial standing wave ratio value and adjusting and controlling the matching error count according to the calculated current standing wave ratio value.

Also. The end state control unit compares the current standing wave ratio value with the initial standing wave ratio value and stores the direction of the first variable capacitor at present and initializes the error count when the current standing wave ratio value becomes low as a result of the comparison, When the value of the first variable capacitor is increased, the direction of the first variable capacitor is adjusted to the original direction and the error count is increased.

If the direction of the first variable capacitor is' True ', the direction of the first variable capacitor is' False' and the direction of the second variable capacitor is' To 'True' and initializes an error count, and if the direction of the first variable capacitor is 'False', a non-matching notification is generated.

According to an aspect of the present invention, there is provided an impedance matching control method for a microwave treatment apparatus, including: a first variable capacitor for measuring an impedance in a microwave treatment apparatus; and a second variable capacitor for measuring impedance in the body of the subject Wherein the first variable capacitor and the second variable capacitor are fixed to a predetermined capacitance value by an initial setting unit, and the first variable capacitor and the second variable capacitor are connected to each other, Setting the direction of the second variable capacitor: the impedance matching performing unit adjusts the impedance of the first variable capacitor and the capacitance of the second variable capacitor by changing the impedance of the microwave therapy device and the impedance of the body of the physician Calculating an initial standing wave ratio value when impedance matching is first performed; And the impedance matching controller controls the capacitance of the first variable capacitor according to the impedance of the current microwave therapy device and the impedance matching of the physician in the body based on the result of comparison between the calculated first standing wave ratio value and the reference standing wave ratio value And controlling the impedance in the microwave therapy device and impedance matching in the body of the subject.

The electrostatic capacitance of the first variable capacitor is adjusted according to the impedance of the current microwave therapy device and the impedance matching state of the physician in the body based on the result of comparing the calculated standing wave ratio value and the reference standing wave ratio value, The step of controlling the impedance and the in-body impedance matching of the physician may include the steps of: determining an operating state of the microwave treatment apparatus, an impedance in the first microwave treatment apparatus, and performing impedance matching in the body of the physician; Comparing the calculated standing wave ratio value with a reference standing wave ratio value when it is determined that the operating state of the microwave therapy apparatus is ON and the impedance in the first microwave therapy apparatus and the in-body impedance matching of the physician are performed; If the calculated standing wave ratio value exceeds the reference standing wave ratio value, it is determined that the impedance of the current microwave therapy apparatus and the in-body impedance matching state of the subject are grasped; And adjusting the electrostatic capacity of the first variable capacitor according to the impedance of the current microwave therapy device and the impedance matching state of the physician in the body.

The step of adjusting the electrostatic capacity of the first variable capacitor according to the detected impedance of the current microwave therapy device and the impedance matching state of the physician in the body may include adjusting the impedance of the current microwave therapy device and the in- 1 is averaged, the mean value of the standing wave ratio values according to the predetermined number of times is calculated, and the average value of the calculated standing wave ratio values is stored. Then, the impedance in the current microwave treatment apparatus and the impedance matching state of the subject in the operating state And changing the control signal to the control signal.

The step of adjusting the capacitance of the first variable capacitor according to the detected impedance of the current microwave therapy device and the impedance matching state of the subject by the physician may include the steps of adjusting the impedance of the current microwave therapy device and the impedance matching state of the subject, The control unit adjusts the direction of the first variable capacitor to a positive direction when the detected direction of the first variable capacitor is 'True', and if the direction of the first variable capacitor is 'False' Adjusting the capacitance of the first variable capacitor by adjusting the capacitance of the first variable capacitor to the negative direction and then changing the impedance in the current microwave therapy device and the in-body impedance matching state of the physician to a second averaged state .

The step of adjusting the electrostatic capacity of the first variable capacitor according to the detected impedance of the current microwave therapy device and the impedance matching state of the physician in the body may include adjusting the impedance of the current microwave therapy device and the in- 2 is averaged, the mean value of the standing wave ratio values according to the predetermined number of times is calculated, the average value of the calculated standing wave ratio values is stored, and the impedance in the current microwave treatment apparatus and the impedance matching state of the physician in the body are terminated And changing the control signal to the control signal.

The step of adjusting the electrostatic capacity of the first variable capacitor according to the detected impedance of the current microwave therapy apparatus and the impedance matching state of the physician in the body may include the step of adjusting the impedance of the current microwave therapy apparatus and the impedance matching state of the subject, The current impedance wave ratio value is calculated after changing the impedance of the current microwave therapy device and the in-body impedance matching state of the physician to the first averaged state, and the calculated current standing wave ratio value is compared with the initial standing wave ratio value And controlling and controlling the matching error count according to the result.

The impedance matching controller and the control method thereof for the microwave therapy apparatus according to the present invention having the above-described configuration can efficiently match the impedance in the microwave therapy device and the body impedance of the physician to the skin, Is minimized.

The present invention has the effect of improving the therapeutic effect by stably maintaining the output of the microwave in the microwave treatment by matching the impedance in the microwave treatment device with the impedance in the body of the physician.

The present invention has the effect of improving the fat decomposition efficiency by heating the subcutaneous fat constantly and uniformly during the fat dissolving treatment and improving the safety in the treatment by preventing the accident from occurring due to the temperature change.

1 is a perspective view showing an embodiment of a microwave treatment apparatus having an impedance matching control apparatus according to the present invention.

2 is a perspective view illustrating an impedance matching controller for a microwave treatment apparatus according to an embodiment of the present invention.

3 is a block diagram illustrating an impedance matching controller for a microwave treatment apparatus according to an embodiment of the present invention.

4 is a view for explaining a detailed configuration of an impedance matching controller for a microwave treatment apparatus according to the present invention.

5 is a diagram for explaining a detailed configuration of an impedance matching performing unit employed in an impedance matching controller for a microwave treatment apparatus according to the present invention.

6 is a diagram for explaining a detailed configuration of an impedance matching controller used in an impedance matching controller for a microwave treatment apparatus according to the present invention.

FIGS. 7 and 8 are flowcharts for explaining the procedure of the impedance matching control method for a microwave treatment apparatus according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

100: Impedance matching control device for microwave treatment device

110: initial setting unit

120: Impedance matching performing unit

130: Impedance matching control unit

Hereinafter, the present invention will be described in more detail.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a perspective view showing an embodiment of a microwave treatment apparatus according to the present invention.

1, the microwave treatment apparatus according to the present invention includes an ultrasonic wave radiator 1 and an ultrasonic wave wave radiator 1 which are positioned to be in contact with the skin of the subject or separated from the skin and emit microwave to the treatment target region of the subject, And a main body 2 connected to the microwave emitter 1 for controlling the operation of the microwave emitter 1.

The main body 2 may include a control panel 2a and a control switch 2b for controlling the operation of the microwave emitter 1 and for confirming the operation state thereof.

The microwave emitter 1 includes a high frequency (RF) electrode for generating a high frequency or an ultrasonic wave transducer for generating an ultrasonic wave to generate a high frequency (RF) or an ultrasonic wave.

A microwave treatment apparatus having an impedance matching apparatus according to the present invention includes a noncontact microwave emitter 1 in which a treatment target site of a patient is positioned between microwave electrodes of an microwave radiator 1 and a treatment target site and a microwave electrode are positioned apart from each other, To decompose and reduce the subcutaneous fat of the subject to be treated.

The microwave emitter 1 includes a rotating side panel body 1b rotatably provided on both end sides of the base panel body 1a and having a high frequency (RF) electrode on its inner surface, ) Is placed on both sides of the body part to be treated, and the high frequency is irradiated to the body part to be treated.

The microwave emitter 1 is connected to the main body 2 by a plurality of connection link portions rotatably provided in the main body 2 and has a structure capable of moving to the body of the patient.

Although not shown, the ultrasonic wave radiator 1 is connected to the main body 2 by a freely flexible flexible cable body, and can have a handpiece structure hand held by a physician who is a practitioner.

The main body for controlling the operation of the microwave emitter 1 and the microwave emitter 1 includes a high frequency (RF) electrode or an ultrasonic transducer to radiate high frequency (RF) or ultrasonic waves to irradiate the skin of the recipient, It is possible to carry out various modifications to the known skin treatment apparatus for treating the skin of the recipient.

2, the impedance matching controller for a microwave treatment apparatus according to the present invention mainly includes a first variable capacitor 10 for measuring an impedance in a microwave treatment apparatus, and a second variable capacitor 10 for measuring impedance in the body of the physician. A variable capacitor 20, and a transformer 40 connecting the first variable capacitor 10 and the second variable capacitor 20.

The first variable condenser 10 is located apart from the first fixed electrode blade plate member 11 and the first fixed electrode blade plate member 11 that are fixed in position and connected to the rotation axis, A first rotating electrode blade plate member 12 for changing the electrostatic capacity according to an area overlapping the fixed electrode blade plate member 10, a first rotating electrode plate member 12 connected to the rotating shaft for rotating the first rotating electrode plate member 12, And a motor (13).

The second variable capacitor 20 is spaced apart from the second fixed electrode vane plate member 21 and the second fixed electrode vane plate member 21 which are fixed in position and connected to the rotation axis, A second rotating electrode blade plate member 22 for changing the electrostatic capacity according to an area overlapping the second fixed electrode blade plate member 21, a second rotating electrode blade plate member 22 connected to the rotating shaft for rotating the second rotating electrode blade plate member 22, And a two-rotation motor 23.

The first rotating electrode blade plate member 11 includes a plurality of first fixed electrode blade plate members 11 and is spaced apart from the first capacitor housing member and is fixedly disposed. The first rotating electrode blade plate member 12 includes a first fixed electrode blade plate member 11, And is located between the first fixed electrode blade plate members 11 in the first condenser housing.

A plurality of second fixed electrode blade plate members 21 are fixedly disposed and spaced apart from each other in the second condenser housing and the second rotating electrode blade plate member 22 is fixed to the first fixed electrode blade plate member 11 and are located between the first fixed electrode blade plate members 11 in the first condenser housing.

The first rotary motor 13 and the second rotary motor 23 divide the first rotary electrode blade plate member 12 and the second rotary electrode blade plate member 22 at predetermined angles about the respective rotation axes, As an example.

The first rotary motor 13 and the second rotary motor 23 are each constituted by a servomotor to divide the first rotary electrode blade plate member 12 and the second rotary electrode plate member 22 into a predetermined angle The area of overlap between the first rotating electrode blade plate member 12 and the first fixed electrode blade plate member 11 and the overlapping area between the second rotating electrode blade plate member 22 and the second fixed electrode blade plate member 21, And the area overlapping with each other can be increased or decreased in a constant stepwise manner.

One of the first fixed electrode blade plate member 11 and the first rotating electrode blade plate member 12 is a semicircular disk and the other is a disk having a shape in which a semicircular disk can be superimposed. One example is what can be done. One of the second fixed electrode blade plate member 21 and the second rotating electrode blade plate member 22 is a semicircular disk and the other has a shape in which a semicircular disk can be overlapped. And can be implemented as an example.

Accordingly, the electrostatic capacitance value of the first variable capacitor 10 and the electrostatic capacitance value of the second variable capacitor 20 increase or decrease in a constant stepwise manner.

The transformer 30 transforms the power of the power source unit for impedance matching and supplies the transformed voltage to the first variable capacitor 10 and the second variable capacitor 20, respectively.

3, the impedance matching controller for a microwave treatment apparatus according to the present invention is provided in a main body of a microwave treatment apparatus including an microwave generator 1 for irradiating microwaves to the skin. The impedance of the microwave therapy apparatus, To match the in-body impedance.

The impedance matching apparatus (A) according to the present invention includes a first variable capacitor (10) capable of changing a capacitance value and capable of changing a capacitance value for measuring an impedance in a microwave treatment apparatus.

The in-body impedance of the subject is measured through the second variable capacitor 200, which can change the capacitance value and is electrically connected to the first variable capacitor 10.

The impedance matching device A performs impedance matching in the microwave therapy device and in-body of the subject by changing the capacitance value of the first variable capacitor 10 and the second variable capacitor 20, And controls the impedance matching of the physician in the body. Hereinafter, the detailed configuration and functions of the impedance matching controller 100 for a microwave treatment apparatus according to the present invention will be described in detail with reference to FIGS. 4 to 6, which will be described later.

4 is a view for explaining a configuration of an impedance matching controller for a microwave treatment apparatus according to the present invention.

Referring to FIG. 4, the impedance matching controller 100 for a microwave treatment apparatus according to the present invention mainly includes an initialization unit 110, an impedance matching unit 120, and an impedance matching controller 130.

The initial setting unit 110 sets the capacitance values of the first variable capacitor and the second variable capacitor to predetermined capacitance values and sets the directions of the first variable capacitor and the second variable capacitor, respectively.

When the impedance in the microwave therapy device and the in-body impedance matching of the subject are first performed while varying the electrostatic capacitance value of the first variable capacitor and the electrostatic capacitance value of the second variable capacitor, the impedance matching performing part 120 calculates the first standing wave ratio VSWR (voltage standing wave ratio).

The impedance matching controller 130 adjusts the capacitance of the first variable capacitor according to the impedance of the current microwave therapy apparatus and the impedance matching state of the physician in the body based on the result of comparison between the calculated first standing wave ratio value and the reference standing wave ratio value Thereby controlling the impedance in the microwave treatment device and the impedance matching in the body of the physician.

More specifically, the impedance matching unit 130 includes a first capacitance value control unit for controlling the capacitance value of the first variable capacitor unit 10 in performing impedance matching, a capacitance value control unit for controlling the capacitance value of the second variable capacitor unit 20 A second capacitance value control section for controlling the capacitance value of the first variable capacitor section 10 and a reflection value measurement section for measuring the reflection value according to the capacitance value change of the second variable capacitor section 20 Time).

The impedance matching unit 130 adjusts the capacitance value of the first variable capacitor unit 10 while fixing the capacitance value of the second variable capacitor unit 20 to the first minimum reflection value and the first minimum value The first capacitance value of the first variable capacitor unit 10 forming the reflection value is checked and the capacitance value of the first variable capacitor unit 10 is fixed at the first capacitance value, So that an impedance matching operation for confirming the second capacitance value of the second variable capacitor unit 20 forming the second minimum reflection value and the second minimum reflection value measured while changing the capacitance value of the first variable capacitance unit 20 is performed do.

In more detail, the impedance matching unit 130 may be configured such that the capacitance value of the second variable capacitor unit 20 is fixed to the second capacitance value control unit, and the impedance value of the first variable capacitance unit 10 (1) of the first variable capacitor unit (10) which forms the first minimum reflection value is checked by determining the first minimum reflection value which is the minimum of the reflection values measured by measuring the reflection value with the reflection value measuring unit while changing the capacitance value Check the capacitance value.

The capacitance value of the second variable capacitor section 20 is changed by the second capacitance value control section while the capacitance value of the first variable capacitor section 10 is fixed with the first capacitance value, The second minimum reflection value being the minimum of the reflection values measured by measuring the reflection value of the portion is checked and the second capacitance value of the second variable capacitor section 20 forming the second minimum reflection value is confirmed.

That is, the impedance matching unit 130 confirms that the impedance in the microwave therapy apparatus matches the impedance in the body of the subject within a range in which the final reflection value is within a preset range, that is, the final reflection value is more than 1: If the reflection value is not within the range of 1: 1 to 1.5 or less, it is judged as an error and the impedance matching operation is repeated again.

5, the impedance matching unit 120 according to the present invention changes the capacitance value of the first variable capacitor and the capacitance value of the second variable capacitor, so that the impedance in the microwave therapy device and the body of the physician When the impedance matching is performed for the first time, the initial standing wave ratio value is calculated.

To this end, the impedance matching performing unit 120 includes a signal converting unit 121, a noise filtering unit 122, and a first standing wave ratio calculating unit 123.

The signal converting unit 121 converts a transducer signal and a reflected wave signal, which are measured while changing the electrostatic capacitance value of the first variable capacitor and the electrostatic capacitance value of the second variable capacitor, into a digital signal.

The noise filtering unit 122 filters the noise of the transducer signal converted into the digital signal and the reflected wave signal.

The impedance matching performing unit 123 calculates a first standing wave ratio value based on the filtered transfer signal and the reflected wave signal. The initial standing wave ratio value calculated by the impedance matching performing unit 123 is stored in a standing wave non-storing unit (not shown).

Referring to FIG. 6, the impedance matching controller 130 according to the present invention compares the impedance of the current microwave therapy device with the impedance matching of the physician in the body, based on the result of comparison between the calculated initial standing wave ratio value and the reference standing wave ratio value And adjusts the capacitance of the first variable capacitor according to the state to control the impedance in the microwave therapy device and impedance matching in the body of the subject.

To this end, the impedance matching controller 130 includes an impedance matching determination unit 131, a standing wave ratio comparison unit 132, an impedance matching state determination unit 133, and a first variable capacitor adjustment unit 134.

The impedance matching determination unit 131 determines whether the operating state of the microwave treatment apparatus, the impedance in the first microwave treatment apparatus, and the impedance matching in the body of the subject are performed.

When the operating state of the microwave therapy apparatus is 'ON' and it is determined that the impedance in the first microwave therapy apparatus and the impedance matching of the subject are performed, the standing wave ratio comparing unit 132 compares the calculated standing wave ratio value and the reference standing wave ratio value .

If the calculated standing wave ratio value exceeds the reference standing wave ratio value as a result of the comparison, the impedance matching state determination unit 133 grasps the impedance in the current microwave treatment apparatus and the in-body impedance matching state of the physician.

The impedance matching state determination unit 133 compares the impedance of the current ultrasonic wave treatment device with the impedance matching state of the subject in the first averaging state, the ACTION state, the second averaging state AVERAGING2, ), Which is at least one of

The first variable capacitor adjusting unit 134 adjusts the capacitance of the first variable capacitor according to the impedance of the current microwave therapy apparatus and the impedance matching state of the subject.

The first variable capacitor adjusting unit 134 includes a first averaging state controller 135, an operation state controller 136, a second averaging state controller 137, and an end state controller 138.

The first averaging state controller 135 calculates an average value of the standing wave ratio values according to the predetermined number of times when it is determined that the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician are in the first averaging state, And stores the average value of the non-value, and then controls the impedance of the current microwave treatment device and the impedance matching state of the physician in the body to an operating state. In this case, if the predetermined number of times applied to the average value calculation is too high, it is impossible to perform real-time tracking because the response of the system becomes slow. On the contrary, when the predetermined number of times is too low, the noise sensitivity becomes high.

The operation state control unit 136 grasps the direction of the first variable capacitor when it is determined that the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are in the operating state. If the direction of the first variable capacitor is 'True' , It is determined that the first variable capacitor has moved in the negative direction previously and is adjusted in the positive direction.

If the detected direction of the first variable capacitor is 'False', the operation state control unit 136 adjusts the capacitance of the first variable capacitor by adjusting the direction of the first variable capacitor to the negative direction. Then, the impedance of the current ultra- Body impedance matching state to a second averaged state.

The second averaging state controller 137 calculates an average value of the standing wave ratio values according to the predetermined number of times when it is determined that the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician are in the second averaged state.

Then, the second averaging state controller 137 stores the average value of the calculated standing wave ratio values, and then controls the impedance of the current microwave therapy apparatus and the in-body impedance matching state of the physician to an end state.

The termination state control unit 138 changes the impedance in the current microwave therapy device and the in-body impedance matching state of the physician to the first averaging state when it is determined that the impedance in the current microwave therapy device and the in- And then calculates the current standing wave ratio value.

The termination state control unit 138 compares the calculated current standing wave ratio value with the initial standing wave ratio value, and controls the matching error count by controlling the result.

The end state control unit 138 compares the current standing wave ratio value with the initial standing wave ratio value. If the current standing wave ratio value is lowered as a result of the comparison, it is determined that the standing wave ratio value is improved and the current direction of the first variable capacitor is stored Initialize the error count.

On the other hand, when the current standing wave ratio value becomes high as a result of the comparison, the termination state controller 138 determines that the standing wave ratio value has not improved, adjusts the direction of the current first variable capacitor to the original direction, and increases the error count.

If the direction of the first variable capacitor is 'True' and the direction of the first variable capacitor is 'False' when the error count is equal to or greater than a predetermined number, the end state controller 138 initializes the error count, If the direction of the first variable capacitor is 'False', a non-matching notification is generated. If the operator confirms the matching non-notification, the practitioner can correct the posture of the client or the position of the microwave generating part so that the impedance matching operation can be performed again.

Referring to FIGS. 7 and 8, the impedance matching control method for a microwave treatment apparatus according to the present invention uses the above-described impedance matching controller for a microwave treatment apparatus, and a description thereof will be omitted.

First, the variables used in the algorithm of the present invention, such as fixing the capacitance values of the first variable capacitor and the second variable capacitor to predetermined capacitance values, and setting the directions of the first variable capacitor and the second variable capacitor, respectively, (S100).

Next, it is determined whether or not a preset time has passed (S105).

Next, when a predetermined time has elapsed, the transfer signal and the reflected wave signal measured while changing the capacitance value of the first variable capacitor and the capacitance value of the second variable capacitor are converted into digital signals (S110).

Next, the noise of the transfer wave signal and the reflection wave signal converted into the digital signal is filtered (S115).

Next, the initial standing wave ratio value is calculated based on the filtered transfer wave signal and the reflected wave signal (S117).

Next, the operation state of the microwave treatment device, the impedance in the first microwave treatment device, and the impedance matching in the body of the subject are determined (S120).

In operation S120, it is determined whether the operating state of the microwave therapy apparatus is 'ON' and whether the impedance in the first microwave therapy apparatus and the in-body impedance matching of the physician are performed.

Next, if it is determined that the operating state of the microwave treatment apparatus is 'ON' and that the impedance in the first microwave therapy apparatus is matched with the in-body impedance matching of the physician, the calculated standing wave ratio value is compared with the reference standing wave ratio value (125) .

Next, if the calculated standing wave ratio value exceeds the reference standing wave ratio value, it is determined whether the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the subject are the first averaging state (S130).

If it is determined in step S130 that the impedance of the current microwave therapy device and the in-body impedance matching state of the physician are in the first averaging state, it is determined whether the average counter is equal to or greater than a predetermined number of times (S131).

In step S131, if the average counter is greater than or equal to the preset number of times, the average value of the standing wave ratio values according to the predetermined number of times is calculated, and the average value of the calculated standing wave ratio values is stored. Then, the impedance in the current microwave treatment apparatus, The matching state is changed to the operating state (S135).

On the other hand, if the average counter is less than the predetermined number in step S131, the current standing wave ratio value is stored (S137).

Next, in step S130, it is determined whether the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician are in an operating state, in which the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician are not the first averaging state (S140) .

If the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are in the operating state in step S140, the direction of the first variable capacitor is grasped (S141).

If the direction of the first variable capacitor detected in step S141 is 'True', the capacitance of the first variable capacitor is adjusted by adjusting it in the positive direction. Then, the impedance of the current microwave therapy device and the impedance matching state of the subject And changes to the second averaging state (S145).

If the direction of the first variable capacitor detected in step S141 is 'False', the capacitance of the first variable capacitor is adjusted by adjusting the direction of the first variable capacitor in the negative direction. Then, the impedance of the current ultra- The matching state is changed to the second averaging state (S147).

Next, in step S140, it is determined whether the impedance in the current microwave therapy device and the in-body impedance matching state of the subject are in a second averaging state (S150).

If it is determined in step S150 that the impedance in the current microwave therapy device and the in-body impedance matching state of the subject are in the second averaging state, it is determined whether the average counter is greater than a preset number of times (S151).

In step S151, if the average counter is greater than or equal to the preset number of times, the average value of the standing wave ratio values according to the predetermined number of times is calculated, the average value of the calculated standing wave ratio values is stored, and the impedance in the current microwave treatment apparatus, The matching state is changed to the end state (S155).

On the other hand, if the average counter is less than the predetermined number in step S151, the current standing wave ratio value is stored (S157).

If it is determined in step S150 that the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are not the second averaging state, it is determined that the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are in an end state (S160) .

If it is determined in step S160 that the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are in the end state, the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are changed to the first averaging state.

Step S160 will be described later with reference to FIG.

In other words, if it is determined in step S160 that the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are in an end state, the impedance in the current microwave therapy device and the impedance matching state of the subject in the body are changed to the first averaging state The current standing wave ratio value is calculated, and the calculated current standing wave ratio value is compared with the initial standing wave ratio value (S161).

In step S161, if the current standing wave ratio value is lowered as a result of comparison between the current standing wave ratio value and the initial standing wave ratio value, the direction of the current first variable capacitor is stored and the error count is initialized (S165).

In step S161, if the current standing wave ratio value is increased as a result of comparison between the current standing wave ratio value and the initial standing wave ratio value, the direction of the current first variable capacitor is adjusted to the original direction and then the error count is increased (S167).

Next, it is determined whether the error count is equal to or greater than a preset number (S170).

If it is determined in step S170 that the error count is greater than the preset number, it is determined whether the current direction of the first variable capacitor is 'True' (S180).

If it is determined in step S180 that the direction of the first variable capacitor is 'True', the direction of the first variable capacitor is adjusted to 'False', and then the error count is initialized (S185).

On the other hand, if the direction of the first variable capacitor is 'False' in step S180, the matching impossible notification is generated (S187).

The functional operations described herein and the embodiments of the present subject matter may be implemented in digital electronic circuitry, computer software, firmware, or hardware, including any of the structures disclosed herein and their structural equivalents, It is possible.

Claims

1. An impedance matching controller for a microwave treatment apparatus, comprising: a first variable capacitor for measuring an impedance in a microwave treatment apparatus; and a second variable capacitor for measuring an impedance in a body of a physician,

An initial setting unit for fixing the capacitance values of the first variable capacitor and the second variable capacitor to predetermined capacitance values and setting the directions of the first variable capacitor and the second variable capacitor;

When the impedance in the microwave therapy device and the impedance matching in the body of the subject are first performed while varying the electrostatic capacitance value of the first variable capacitor and the electrostatic capacitance value of the second variable capacitor, the initial standing wave ratio (VSWR) An impedance matching performing unit for calculating a value; And

The capacitance of the first variable capacitor is adjusted according to the impedance of the current microwave therapy apparatus and the impedance matching state of the physician in the body based on the result of comparison between the calculated initial standing wave ratio value and the reference standing wave ratio value, An impedance matching controller for controlling impedance matching in the body of the subject;

And an impedance matching controller for the microwave therapy apparatus.
The method according to claim 1,

Wherein the impedance matching unit comprises:

A signal converting unit for converting a transfer wave signal and a reflected wave signal measured while changing a capacitance value of the first variable capacitor and a capacitance value of the second variable capacitor into a digital signal;

A noise filtering unit for filtering noise of a transducer wave signal and a reflected wave signal converted into a digital signal; And

An impedance matching performing unit for calculating a first standing wave ratio value based on the filtered transfer wave signal and the reflected wave signal;

And an impedance matching controller for the microwave therapy apparatus.
The method according to claim 1,

Wherein the impedance matching controller comprises:

An impedance matching determination unit for determining an operating state of the microwave treatment apparatus, an impedance in the first microwave treatment apparatus, and an impedance matching in the body of the subject;

A standing wave ratio comparing unit for comparing the calculated standing wave ratio value with a reference standing wave ratio value when it is determined that the operating state of the microwave treatment apparatus is ON and the impedance in the first microwave therapy apparatus and the in-body impedance matching of the physician are performed;

As a result of the comparison, if the calculated standing wave ratio value exceeds the reference standing wave ratio value, the impedance matching state determination unit recognizes the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician; And

A first variable capacitor adjuster for adjusting the capacitance of the first variable capacitor according to the impedance of the current microwave therapy device and the impedance matching state of the physician;

And an impedance matching controller for the microwave therapy apparatus.
The method of claim 3,

The impedance matching state determination unit may determine at least one of an impedance in the current microwave therapy device and an impedance matching state of the subject in the body to be at least one of an AVERAGING1 state, an ACTION state, a second averaging state AVERAGING2, The impedance matching control device for an ultra-short wave therapy device.
The method of claim 3,

The first variable capacitor adjuster calculates an average value of a standing wave ratio value according to a predetermined number of times when it is determined that the impedance in the current microwave therapy apparatus and the in-body impedance matching state of the physician are in a first averaged state, And a first averaging state controller for changing the impedance of the current microwave therapy device and the in-body impedance matching state of the physician to an operating state to control the impedance matching controller.
The method of claim 3,

The first variable capacitor adjuster may determine the direction of the first variable capacitor when the impedance of the current microwave therapy device and the in-body impedance matching state of the physician are in an operating state, and if the direction of the first variable capacitor is' True ', and adjusts the capacitance of the first variable capacitor to the negative direction when the detected direction of the first variable capacitor is' False' to adjust the capacitance of the first variable capacitor, And an operation state control unit for changing the impedance matching state of the subject and the in-body impedance matching state to a second averaged state and controlling the impedance matching state.
The method of claim 3,

The first variable capacitor adjuster calculates an average value of a standing wave ratio value according to a predetermined number of times when it is determined that the impedance in the current microwave therapy device and the in-body impedance matching state of the physician are in a second averaged state, And a second averaging state controller for changing the impedance of the current microwave therapy device and the in-body impedance matching state of the physician to an end state, and controlling the impedance matching device.
The method of claim 3,

The first variable capacitor adjuster changes the impedance in the current microwave therapy device and the in-body impedance matching state of the physician to the first averaging state when it is determined that the impedance in the current microwave therapy device and the in- And an end state controller for controlling the matching error count by comparing the calculated current standing wave ratio value with the initial standing wave ratio value and controlling the matching error count according to the calculated current standing wave ratio value. Matching control device.
9. The method of claim 8,

The end state control unit compares the current standing wave ratio value with the initial standing wave ratio value and stores the direction of the first variable capacitor at present and initializes the error count when the current standing wave ratio value becomes low as a result of the comparison, When the value of the first variable capacitor is increased, the direction of the first variable capacitor is adjusted to the original direction and the error count is increased.
10. The method of claim 9,

Wherein the termination state control unit initializes an error count after adjusting the direction of the first variable capacitor to 'False' if the direction of the first variable capacitor is 'True' when the error count is equal to or greater than a predetermined number, And if the direction of the first variable capacitor is 'False', the matching impossible notification is generated.
1. An impedance matching control method for a microwave treatment apparatus including a first variable capacitor for measuring an impedance in a microwave treatment apparatus and a second variable capacitor for measuring an impedance in a body of a physician,

Fixing the capacitance values of the first variable capacitor and the second variable capacitor to preset capacitance values by an initial setting unit and setting the directions of the first variable capacitor and the second variable capacitor,

When the impedance in the microwave therapy device and the impedance matching in the body of the subject are first performed by changing the capacitance value of the first variable capacitor and the capacitance value of the second variable capacitor by the impedance matching performing part, ; And

The impedance matching control unit adjusts the capacitance of the first variable capacitor according to the impedance of the current microwave therapy apparatus and the impedance matching state of the physician in the body based on a result of comparison between the calculated initial standing wave ratio value and the reference standing wave ratio value Controlling the impedance in the microwave treatment device and the in-body impedance matching of the physician;

Wherein the impedance matching method comprises the steps of:
12. The method of claim 11,

Based on the result of comparing the calculated standing wave ratio value and the reference standing wave ratio value, the capacitance of the first variable capacitor is adjusted according to the impedance in the current microwave therapy apparatus and the impedance matching state of the physician in the body, The step of controlling the in-body impedance matching of the physician,

Determining whether the impedance of the first microwave therapy device and impedance matching of the physician are performed;

Comparing the calculated standing wave ratio value with a reference standing wave ratio value when it is determined that the operating state of the microwave therapy apparatus is ON and the impedance in the first microwave therapy apparatus and the in-body impedance matching of the physician are performed;

If the calculated standing wave ratio value exceeds the reference standing wave ratio value, it is determined that the impedance of the current microwave therapy apparatus and the in-body impedance matching state of the subject are grasped; And

Adjusting the electrostatic capacitance of the first variable capacitor according to the impedance of the current microwave therapy apparatus and the impedance matching state of the physician;

Wherein the impedance matching method comprises the steps of:
13. The method of claim 12,

The step of adjusting the capacitance of the first variable capacitor according to the detected impedance of the current microwave therapy apparatus and the impedance matching state of the physician in the body,

If it is judged that the impedance in the microwave therapy apparatus and the physician's in-body impedance matching state are in the first averaged state, an average value of the standing wave ratio values according to the predetermined number of times is calculated, an average value of the calculated standing wave ratio values is stored, And controlling an impedance in the microwave therapy device and an impedance matching state of the physician in the body to an operating state to control impedance matching of the microwave therapy device.
13. The method of claim 12,

The step of adjusting the capacitance of the first variable capacitor according to the detected impedance of the current microwave therapy apparatus and the impedance matching state of the physician in the body,

If it is determined that the impedance in the microwave therapy apparatus and the in-body impedance matching state of the physician are in the operating state, the direction of the first variable capacitor is grasped, and when the detected direction of the first variable capacitor is 'True' And adjusting the capacitance of the first variable capacitor by adjusting the direction of the first variable capacitor when the detected direction of the first variable capacitor is 'False' in the negative direction. Then, the impedance of the current microwave therapy device and the impedance And changing the matching state to a second averaged state to control the impedance matching method.
13. The method of claim 12,

The step of adjusting the capacitance of the first variable capacitor according to the detected impedance of the current microwave therapy apparatus and the impedance matching state of the physician in the body,

If it is determined that the impedance in the microwave therapy device and the physician's in-body impedance matching state are in the second averaged state, an average value of the standing wave ratio values according to the predetermined number of times is calculated, an average value of the calculated standing wave ratio values is stored, And changing the impedance in the microwave therapy device and the in-body impedance matching state of the physician to an end state, thereby controlling the impedance matching method for the microwave treatment device.
13. The method of claim 12,

The step of adjusting the capacitance of the first variable capacitor according to the detected impedance of the current microwave therapy apparatus and the impedance matching state of the physician in the body,

If it is judged that the impedance in the microwave therapy apparatus and the physician's in-body impedance matching state are in the termination state, the impedance of the current microwave treatment apparatus and the impedance matching state of the physician in the body are changed to the first averaging state, Comparing the calculated current standing wave ratio value with a first standing wave ratio value, and adjusting and controlling a matching error count according to the calculated current standing wave ratio value; and controlling the impedance matching method for a microwave treatment apparatus.