KR200298180Y1 - Ultrasonic Transducer for Piles Therapy Unit - Google Patents

Abstract

Disclosed is an ultrasonic vibrator for treating hemorrhoids for preventing overheating of an ultrasonic vibrator for effectively transmitting ultrasonic waves around or inside the anus and for efficient heat dissipation. The ultrasonic vibrator for treating hemorrhoids according to the present invention solves problems such as effective delivery of ultrasonic waves, overheating protection of the vibrator, and power transistor heat dissipation, and also provides a safer ultrasonic hemorrhoid treatment device in human use with a thermal effect.

Description

Ultrasonic Oscillator for Hemorrhoidal Therapy {Ultrasonic Transducer for Piles Therapy Unit}

The present invention relates to an ultrasonic transducer for utilizing ultrasonic waves for the treatment or adjuvant therapy of hemorrhoids, in particular ultrasonic waves for effectively delivering ultrasonic waves around or inside the anus. An ultrasonic vibrator for treating hemorrhoids for preventing overheating of the vibrator and for efficient heat dissipation.

In general, hemorrhoids is called hemorrhoids in medical terminology, and is divided into internal and external hemorrhoids. Hemorrhoids are blood vessels that clump together under the mucous layer above the anus, causing blood to clump up, causing numerous veins to swell up like a rubber balloon. This, in addition to fissures, can cause tissue inflammation.

In the treatment of hemorrhoids, in addition to surgical therapy, medicines such as external ointments and suppositories are used, or a treatment method that uses microwaves as a physical therapy is used. Most microwave therapy devices use 2450 MHz of radio waves, which is a kind of electro-magnetic wave. Also, the frequency is around 2,450 MHz, which is the microwave band, which is the same frequency as a microwave oven. Therefore, the properties thereof are almost the same as the exothermic action of the microwave oven. Microwave treatment is a non-contact method to irradiate the beam phase by the antenna (beam phase) to treat the affected area, because the wavelength (λ) is short, the treatment range in vivo is about a few sub-mm ~ 10mm, in order to achieve a therapeutic effect dozens ~ It requires a very high power of several hundred watts.

However, the method of treating hemorrhoids using microwaves may cause deformation of biological tissues by the strong electromagnetic waves of microwaves, which may cause the onset of cancer.

Therefore, the treatment of hemorrhoids by ultrasound has been attempted as an alternative means to solve the shortcomings of microwaves. Ultrasound is a type of acoustic vibration that is sounded at frequencies above about 20 kHz beyond the human audible range. Ultrasonic waves are a kind of energy produced by mechanical vibrations. When energy is transmitted to a medium, it is transmitted in a periodic vibration wave, generating compression and leanness in the medium material. When the medium is liquid, the ultrasonic waves are energized in the form of cavitation, acceleration, and elastic straight stream. Cavitation refers to the creation and explosion of fine bubbles, which occur in ultrasonic waves below several hundred kHz. Therefore, when using ultrasonic waves in the human body, use high frequency ultrasonic waves in the MHz band where cavitation does not occur.

To date, the therapeutic action using ultrasonic energy to the living tissue mainly includes the promotion of metabolism by the fever of the affected area, the micro-massage by the high frequency vibration, and the biological chemical action in other living tissue. Is due. The best feature of ultrasound treatment is its permeability, its energy up to about 6 cm deep. Because of this, unlike the conventional method of affecting only the epidermis, the subcutaneous core can be directly vibrated and heated, thereby enabling a very efficient treatment in a short time. In other words, the increase in tissue temperature of about 1 ° C by ultrasound accelerates the metabolism of tissues, and the increase in temperature of about 2 ~ 3 ° C reduces muscle contractions, spasm, chronic inflammation, pain, Promotes lymphatic circulation Temperature rises above 4 ° C. are known to suppress tissue pain by enhancing tissue extensibility and reducing sympathetic nervous system activity.

Therefore, compared with conventional ultra-high-frequency hemorrhoidal treatment, the treatment of hemorrhoids using ultrasound is easier to penetrate into the subcutaneous core with a lower power and can produce various and good therapeutic effects, and also to diagnose the condition of the fetus already. The use of ultrasound is a safe treatment method that does not adversely affect biological tissues rather than microwaves.

Korean Utility Model Registration No. 0183149 by the present applicant discloses an ultrasonic vibrator for treating hemorrhoids having a combination of a piezoceramic device that generates ultrasonic waves and a metal horn of a specific shape considering efficient transmission of ultrasonic waves for treating hemorrhoids. .

However, heat is inevitably generated in the ultrasonic vibrator because the mechanical quality factor and the electro-mechanical conversion efficiency of the piezoceramic cannot be perfect due to the characteristics of the polycrystalline material. In addition, the acoustic impedance matching of the oscillator cannot be ideal, so heat is generated in the power transistor of the ultrasonic oscillator circuit. Therefore, when the ultrasonic vibrator is used for a long time, heat accumulates in the vibrator and the power transistor, which may cause overheating.

The present invention is designed to solve the above disadvantages, by forming a sensor to sense the temperature inside the metal horn that can deliver ultrasonic waves more efficiently to the human body to detect overheating of the vibrator, and to form a power transistor inside the metal horn. By radiating heat generated from the power transistor through the metal horn, the vibrator can be prevented from overheating and heat treatment. Therefore, it can produce various and good treatment effects to the subcutaneous core and does not adversely affect the living tissue. The object is to provide an ultrasonic vibrator for safe hemorrhoids treatment device.

1 is a perspective view for showing the shape of the ultrasonic vibrator for hemorrhoids treatment device according to the present invention.

FIG. 2 is a cross-sectional view taken along line AA ′ in FIG. 1.

<Explanation of symbols for the main parts of the drawings>

5 protrusion 6 support part

7: space part 10: ultrasonic vibrator

11: metal horn 12: piezoceramic

13 through hole 14 adhesive

15: step 20: heat sink

21: power transistor 22: temperature sensor

24: Temperature sensor lead wire 23, 26: Fixing screw

The present invention for carrying out the above object,

A metal horn composed of two stages such that a cylindrical support portion having a space portion formed therein is formed below the conical protrusion portion;

Piezoelectric ceramics attached to the upper end of the inner space of the metal horn for generating ultrasonic waves;

A temperature control circuit for adjusting the intensity of ultrasonic waves generated in the piezoelectric ceramics in response to a detection signal of a temperature sensor embedded in a through hole formed at one side of an inner space of the metal horn;

A heat sink configured to be horizontally fixed to both sides of the central portion of the inner space of the metal horn to dissipate heat; And

A lower portion of the heat sink is integrated to include a power transistor for switching the power source for generating ultrasonic waves.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view for showing the shape of the ultrasonic vibrator for treating hemorrhoids according to the present invention, Figure 2 is a cross-sectional view taken along the line A-A 'in FIG.

As shown in FIGS. 1 and 2, the ultrasonic vibrator for treating hemorrhoids according to the present invention has a conical protrusion 5 at an upper portion and a cylindrical support portion 6 having a space portion 7 formed therein. Preferably, it has a metal horn 11 composed of two stages. The material of the metal horn 11 may be a metal such as stainless steel, titanium and titanium alloys, aluminum alloys, duralumins, tool steels, etc., which are highly corrosion resistant. , Preferably stainless steel.

A piezoelectric ceramics 12 for vibrating by receiving power is attached to the upper end of the space 7 in the metal horn 11. The piezoelectric ceramics 12 has a resonance frequency of 0.994 ± 0.009 MHz and a resonance resistance thereof. Use a disk of about 640 ± 260 mΩ. The adhesive 14 is applied thinly on one side of the piezoelectric ceramics 12, and then the upper end of the internal space 7 of the metal horn 11 and the piezoelectric ceramics 12 are brought into close contact with each other by a force of 10 to 20 kgf · cm. The piezoelectric ceramics 12 are attached to the metal horn 11 by heat treatment at 100 to 150 ° C. for 20 minutes to produce an ultrasonic vibrator 10.

A through hole 13 is formed at one side of the inner space 7 of the metal horn 11, and a temperature sensor 22 is attached to the through hole 13. The temperature sensor 22 is electrically connected to a temperature control circuit (not shown). The temperature control circuit (not shown) is an ultrasonic wave when the temperature of the vibrator 10 detected by the temperature sensor 22 is 45 or more. Even if ultrasonic waves are used continuously by decreasing the intensity, the temperature of the vibrator is operated so that it does not exceed 45 ° C.

A heat sink 20 for dissipating heat generated from the vibrator is horizontally formed in the center of the inner space 7 of the metal horn 11. That is, the step 15 is formed in the inner space 7 of the metal horn 11, and the heat sink 20 is horizontally fixed using the screws 23 on both sides of the inner space 7. The power transistor 21 is attached to the lower portion of the heat sink 20 using the fixing screw 26. As such, since the power transistor 21 is integrated with the ultrasonic vibrator 10, heat generated from the power transistor 21 can be effectively radiated through the metal horn 11, thereby preventing overheating of the power transistor 21. And stable oscillation can be maintained.

When generating an ultrasonic wave by applying an electrical signal to the ultrasonic vibrator 10, the condition in which oscillation (or mechanical vibration) of the ultrasonic vibrator may occur most efficiently is performed at the same frequency as the resonant frequency of the ultrasonic vibrator. The signal is applied to the ultrasonic vibrator. The resonant frequency of the ultrasonic vibrator is primarily determined by the shape and dimensions of the piezoelectric ceramics 12. However, since the ultrasonic vibrator is formed by the combination of the piezoelectric ceramics 12 and the metal horns 11, the shape of the metal horns 11 is secondary. It is also affected by the dimensions and dimensions.

The piezoelectric ceramics 12 attached to one side of the metal horn 11 have a property of directly converting electrical energy into mechanical vibration energy. When the frequency of the electric signal applied from the outside is an ultrasonic band, the piezoelectric ceramics generate ultrasonic waves by mechanical vibration of the same frequency as the applied electric signal. Ultrasonic power output and frequency range effective for the treatment of hemorrhoids are 0.1 to 3.0 W / cm ² and 0.8 to ³ MHz.

In addition, when the ultrasonic vibrator 10 is used continuously, heat is inevitably generated in the vibrator due to an increase in load or a loss component of the vibrator. The piezoelectric ceramics 12 of the vibrator in the treatment device configuration is in a closed space, so if the balance between generation and release of heat is broken, heat may accumulate in the vibrator and overheating may occur. This rapidly deteriorates the characteristics of the piezoelectric element 12, which adversely affects the stability of the operation of the device, but also leads to overheating of the vibrator metal horn 11, which is a problem in safety of human body use.

In order to solve this problem, the present invention integrates the temperature sensor 22 inside the ultrasonic vibrator 10 to measure the temperature of the vibrator through the temperature sensor 22, and automatically reduces the power when the temperature is higher than the reference temperature. Or shut off and configure the temperature control circuit to resume normal operation when the temperature drops below the reference level.

In the present invention, a power transistor 21 and a heat sink 20, which are usually provided on a circuit board, are provided on the ultrasonic vibrator side. That is, by integrating the ultrasonic vibrator 10 and the power transistor 21, the vibrator is formed to conduct heat generated from the power transistor 21 to the metal horn 11 to efficiently radiate to the outside air. The heat dissipation effect can be expected in the treatment of hemorrhoids using the fact that the temperature of the metal horn 11 rises in the process of conducting efficient heat dissipation and heat of the power transistor 21 to the outside air through the metal horn 11. There are also advantages.

As described above, the ultrasonic vibrator for treating hemorrhoids according to the present invention solves problems such as effective delivery of ultrasonic waves, overheating protection of the vibrator, and power transistor heat dissipation, and also provides a safer ultrasonic hemorrhoidal treatment device in human use with a thermal effect.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited thereto and may be improved or modified by those skilled in the art within the scope of the technical idea of the present invention.

Claims (3)

A metal horn (11) composed of two stages such that a cylindrical support (6) formed therein with a space (7) is formed below the conical protrusion (5); A piezoelectric ceramics 12 attached to an upper end of the inner space 7 of the metal horn 11 for generating ultrasonic waves; The intensity of the ultrasonic wave generated in the piezoelectric ceramics 12 is adjusted by receiving the detection signal of the temperature sensor 22 embedded in the through hole 13 formed at one side of the inner space 7 of the metal horn 11. A temperature control circuit for performing; A heat sink 20 fixed to the both sides of the central portion of the inner space 7 of the metal horn 11 in a horizontal direction to dissipate heat; And An ultrasonic vibrator for treating hemorrhoids, which is integrated under the heat sink 20 and includes a power transistor 21 for switching a power source for generating ultrasonic waves. According to claim 1, wherein the material of the metal horn (11) is stainless steel (stainless steel), titanium (titanium) and titanium alloy (titanium alloy), aluminum alloy (aluminum alloy), duralumin (duralumin), tool steel Ultrasonic vibrator for treating hemorrhoids, characterized in that the selected one of the metal. The ultrasonic oscillator for treating hemorrhoids according to claim 1, wherein the temperature control circuit is operated so that the temperature of the metal horn does not exceed 45 ° C.