KR101803529B1 - Ultrasound transducer - Google Patents

Ultrasound transducer Download PDF

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Publication number
KR101803529B1
KR101803529B1 KR1020150175646A KR20150175646A KR101803529B1 KR 101803529 B1 KR101803529 B1 KR 101803529B1 KR 1020150175646 A KR1020150175646 A KR 1020150175646A KR 20150175646 A KR20150175646 A KR 20150175646A KR 101803529 B1 KR101803529 B1 KR 101803529B1
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KR
South Korea
Prior art keywords
ultrasonic
piezoelectric element
coupler
electrodes
pair
Prior art date
Application number
KR1020150175646A
Other languages
Korean (ko)
Other versions
KR20170068771A (en
Inventor
조성찬
Original Assignee
주식회사 코러스트
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Application filed by 주식회사 코러스트 filed Critical 주식회사 코러스트
Priority to KR1020150175646A priority Critical patent/KR101803529B1/en
Publication of KR20170068771A publication Critical patent/KR20170068771A/en
Application granted granted Critical
Publication of KR101803529B1 publication Critical patent/KR101803529B1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
    • A61M37/0092—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin using ultrasonic, sonic or infrasonic vibrations, e.g. phonophoresis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/05—General characteristics of the apparatus combined with other kinds of therapy
    • A61M2205/058—General characteristics of the apparatus combined with other kinds of therapy with ultrasound therapy

Abstract

The ultrasonic transducer includes a piezoelectric element, a pair of electrodes formed on both surfaces of the piezoelectric element, and an ultrasonic coupler formed to cover an outer surface of any one of the pair of electrodes, wherein the surface of the ultrasonic coupler is fine Pattern. Since the ultrasonic coupler is formed to have a fine pattern so as to have a plurality of local ultrasonic focusing points, it is possible to reduce the heat generation and improve the drug delivery effect.

Description

Ultrasound transducer

The present invention relates to an ultrasonic transducer for generating ultrasonic waves.

Recently, ultrasound has been widely used for the treatment of the lesions and the beauty of the skin.

The apparatus for generating ultrasonic waves consists of an ultrasonic transducer and a power generating unit. The ultrasonic transducer is constituted by forming electrodes on both surfaces of the piezoelectric element, and the power generating unit generates a pulse power for driving the ultrasonic transducer. When the ultrasonic power is applied to the electrode formed on the surface of the piezoelectric element, the piezoelectric element vibrates physically and ultrasonic waves are generated as a result.

Since the ultrasonic transducer can not be driven in a state in which the electrode formed on the surface of the piezoelectric element is in direct contact with the human skin, a coupler formed of metal or synthetic resin is attached to the surface irradiated with the ultrasonic wave. The coupler is formed of a material having a good ultrasonic transmission characteristic and is generally made of stainless steel, nylon or the like.

Typically, the surface of such a coupler is made of a smooth surface, in which case ultrasonic waves generated in the piezoelectric element are irradiated through the coupler in contact with the skin.

Generally, the higher the intensity of ultrasound is, the better the clinical treatment effect is. However, except for the special case (for example, high-intensity focused ultrasound), the total amount of ultrasound energy is limited so as not to generate ultrasound with a certain energy in consideration of safety . Even if these limitations are imposed, there is a problem that the generation of high ultrasonic energy causes a lot of heat in the ultrasonic transducer including the piezoelectric element, so that it is difficult to continuously irradiate the ultrasonic wave and the life of the ultrasonic transducer is shortened.

In addition, when ultrasound is used with drugs, drug delivery through the skin is promoted. Also, when the energy of the ultrasound is high, the drug delivery effect is high, but the drug delivery effect is not high by the uniform ultrasound .

Korean Patent Publication No. 10-2014-0094677 (Publication date: Jul. 31, 2014)

A problem to be solved by the present invention is to provide an ultrasonic transducer with reduced heat generation and particularly excellent drug delivery effect.

The ultrasonic transducer according to an embodiment of the present invention includes a piezoelectric element, a pair of electrodes formed on both surfaces of the piezoelectric element, and an ultrasonic coupler formed to cover the outer surface of any one of the pair of electrodes. The surface of the ultrasonic coupler has a depressed pattern having a plurality of depressed portions, and the depressed portions each have a form in which the irradiated ultrasonic waves are focused at a predetermined point.

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The recess pattern may be formed to have a plurality of local ultrasound focusing points.

According to the present invention, since the ultrasonic coupler is formed to have a fine pattern so as to have a plurality of local ultrasonic focusing points, the heat generation can be reduced and the drug delivery effect can be improved.

1 is a schematic perspective view of an ultrasonic transducer according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line II-II in FIG.
3 is a schematic bottom view of an ultrasonic transducer according to an embodiment of the present invention.

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

1 and 2, an ultrasonic transducer 10 according to an embodiment of the present invention includes a piezoelectric element 11, and a pair of electrodes 13 and 15 are formed on both surfaces of the piezoelectric element 11 Respectively. In the figure, the piezoelectric element 11 and the electrodes 13 and 15 are shown as having a circular plate shape, but their shapes are not limited thereto and can be variously changed.

The piezoelectric element 11 may be formed of a material having a piezoelectric effect, and may be formed of various materials capable of converting electrical signals into mechanical vibrations, for example, ceramics, composite piezoelectric materials, and single crystal quartz. The piezoelectric element 11 can be made to have a shape and a size appropriate for the magnitude of the energy required and the intended use.

The pair of electrodes 13 and 15 are formed to be in contact with both surfaces of the piezoelectric element 11 and can be formed of a metal such as silver having good electrical conductivity, for example.

At this time, although not shown in the figure, the pair of electrodes 13 and 15 are electrically connected to an external pulse power generator to receive pulse power generated from an external pulse power generator. When a pulse power source is applied to the electrodes 13 and 15, a pulse current flows through the piezoelectric element 11, and as a result, the piezoelectric element 11 vibrates.

On the other hand, an ultrasonic coupler 17 that covers the outer surface of the electrode 15 positioned in the ultrasonic propagation direction among the pair of electrodes 13 and 15 is provided. For example, the ultrasonic coupler 17 may be formed of a metal or a synthetic resin having good ultrasonic transmission characteristics, and may be specifically formed of stainless steel, nylon, or the like.

The surface 17b of the ultrasonic coupler 17 is formed to have the fine pattern 17a. For example, referring to FIGS. 2 and 3, the fine pattern 17a may be formed of a plurality of depressions. That is, the fine pattern 17a may be a depressed pattern having a plurality of depressed portions. At this time, the plurality of depressed portions 17a may have a form in which the irradiated ultrasonic waves are respectively focused on predetermined points. For example, each depression 17a may have a spherical or parabolic shape. With this structure, the fine pattern 17a is formed to have a plurality of local ultrasonic focusing points.

As the ultrasonic coupler 17 has a plurality of local ultrasound focusing points, the heat generated by the ultrasound transducer can be reduced. In particular, when the ultrasound is irradiated while the drug is applied to the skin surface, The drug delivery effect is greatly increased.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

10: Ultrasonic transducer
11: piezoelectric element
13, 15: electrode
17: Ultrasonic coupler
17a: fine pattern

Claims (4)

Piezoelectric elements,
A pair of electrodes formed on both surfaces of the piezoelectric element, and
And an ultrasonic coupler formed to cover an outer surface of any one of the pair of electrodes,
Wherein the surface of the ultrasonic coupler has a depressed pattern having a plurality of depressions,
Wherein the plurality of depressions each have a shape such that an irradiated ultrasonic wave is converged at a predetermined point. delete delete The method of claim 1,
Wherein the recess pattern is formed to have a plurality of local ultrasonic focusing points.
KR1020150175646A 2015-12-10 2015-12-10 Ultrasound transducer KR101803529B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150175646A KR101803529B1 (en) 2015-12-10 2015-12-10 Ultrasound transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150175646A KR101803529B1 (en) 2015-12-10 2015-12-10 Ultrasound transducer

Publications (2)

Publication Number Publication Date
KR20170068771A KR20170068771A (en) 2017-06-20
KR101803529B1 true KR101803529B1 (en) 2017-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150175646A KR101803529B1 (en) 2015-12-10 2015-12-10 Ultrasound transducer

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KR (1) KR101803529B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090198157A1 (en) * 2008-02-01 2009-08-06 Eilaz Babaev Ultrasound moxibustion method and device
KR101418356B1 (en) 2013-01-10 2014-07-10 주식회사 코러스트 Ultrasound transducer of high intensity focused ultrasound generating apparatus
KR101493374B1 (en) * 2013-09-16 2015-02-25 주식회사 코러스트 Broadband functional ultrasonic patch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090198157A1 (en) * 2008-02-01 2009-08-06 Eilaz Babaev Ultrasound moxibustion method and device
KR101418356B1 (en) 2013-01-10 2014-07-10 주식회사 코러스트 Ultrasound transducer of high intensity focused ultrasound generating apparatus
KR101493374B1 (en) * 2013-09-16 2015-02-25 주식회사 코러스트 Broadband functional ultrasonic patch

Also Published As

Publication number Publication date
KR20170068771A (en) 2017-06-20

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