KR20160037597A - Patch-type ultrasonic generating device - Google Patents

Patch-type ultrasonic generating device Download PDF

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Publication number
KR20160037597A
KR20160037597A KR1020140130384A KR20140130384A KR20160037597A KR 20160037597 A KR20160037597 A KR 20160037597A KR 1020140130384 A KR1020140130384 A KR 1020140130384A KR 20140130384 A KR20140130384 A KR 20140130384A KR 20160037597 A KR20160037597 A KR 20160037597A
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KR
South Korea
Prior art keywords
housing
ultrasonic transducer
piezoelectric film
ultrasonic
depression
Prior art date
Application number
KR1020140130384A
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Korean (ko)
Inventor
조성찬
Original Assignee
주식회사 코러스트
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Publication date
Application filed by 주식회사 코러스트 filed Critical 주식회사 코러스트
Priority to KR1020140130384A priority Critical patent/KR20160037597A/en
Publication of KR20160037597A publication Critical patent/KR20160037597A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • A61N7/02—Localised ultrasound hyperthermia

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgery (AREA)
  • Otolaryngology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgical Instruments (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

A piezoelectric film patch-type ultrasonic generating device for treatment comprises: a housing; and an ultrasonic transducer attached to the housing, and formed as a flexible piezoelectric film. The housing is formed to expose at least a part of a rear surface of the ultrasonic transducer to the outside. By forming the housing for fixing the piezoelectric patch-type ultrasonic transducer to expose at least a part of the rear surface of the ultrasonic transducer to the outside, the piezoelectric film patch-type ultrasonic generating device effectively discharges heat generated when generating a high output ultrasonic wave for a long period of time for treatment, and can function to block energy transferred to the rear surface of the piezoelectric film, thereby preventing the temperature from excessively increasing, and increasing intensity of ultrasonic energy irradiated to a skin.

Description

[0001] PATCH-TYPE ULTRASONIC GENERATING DEVICE [0002]

The present invention relates to an ultrasonic wave generating apparatus for treating a piezoelectric film patch type.

A method of treating a human body with ultrasound generated by an ultrasound generating device and performing treatment and surgery has been widely used.

There has been disclosed a patch-type ultrasonic wave generating device formed of an ultrasonic transducer in which electrodes are formed on both surfaces of a thin piezoelectric polymer film having flexibility, for example. Such a patch type ultrasound generating device can be easily attached to various parts of the skin because it can be easily deformed according to the shape of the skin due to flexibility.

In the conventional patch-type ultrasonic generator, it is difficult to uniformly irradiate ultrasonic waves by using a plurality of piezoelectric ceramics arranged in order to adhere to a complicated skin surface. In addition, the conventional ultrasonic wave generating apparatus using a piezoelectric film generates ultrasonic energy of a low output in the form of an impulse, and is used in a ultrasonic wave generating apparatus for diagnosis which is used for a very short time. However, There is a need for a piezoelectric film patch type ultrasonic wave generating device that can be used as a piezoelectric film. The piezoelectric film patch type therapeutic ultrasound generating apparatus is provided with a housing for fixing the ultrasonic transducer, and the ultrasonic transducer is fixed to the housing to form a single product. Such an ultrasonic wave generating apparatus has a problem that the housing is damaged due to the use of the ultrasonic wave generating apparatus, and the ultrasonic wave generating apparatus can not be used due to the damage of the housing although a relatively expensive ultrasonic wave transducer can operate normally. In addition, when high pulse electric energy is applied to the electrodes formed on both sides of the piezoelectric film, electric short-circuiting may occur between the electrodes. Further, due to generation of high-power ultrasonic waves, relatively more heat is generated, There is a problem that the piezoelectric film ultrasonic transducer may be damaged.

Korean Unexamined Patent Publication No. 2003-0028472 (published on Apr. 4, 2003)

An object of the present invention is to provide an efficient method for generating high output ultrasonic energy in an ultrasonic wave generating device comprising a housing and an ultrasonic transducer, an electric short circuit of a piezoelectric film that can occur when generating high output ultrasonic energy, And to provide a piezoelectric film patch-type therapeutic ultrasound generator capable of easily preventing the temperature rise of the piezoelectric film occurring at the time of the operation of the piezoelectric film, and further facilitating replacement of the housing or the ultrasonic transducer.

The piezoelectric film patch type therapeutic ultrasound generating apparatus according to an embodiment of the present invention includes a housing and an ultrasonic transducer attached to the housing and formed of a flexible piezoelectric film. The housing is formed such that at least a part of the rear surface of the ultrasonic transducer is exposed to the outside.

A depression may be formed on the bottom surface of the housing, and the ultrasonic transducer may be positioned on the depression.

The edge of the ultrasonic transducer may be attached to the bottom surface of the depression and attached to the housing.

The ultrasonic transducer may be detachably attached to the housing by a double-sided adhesive tape attached to a bottom surface of the depression.

The ultrasonic transducer may include a flexible piezoelectric film, a pair of electrodes respectively formed on both surfaces of the piezoelectric film, and a pair of electric wires electrically connected to the pair of electrodes, And a wire discharge unit connected to the depression and forming a passage through which the electric wire passes.

The passage may be formed to connect the depression with the upper surface of the housing.

The ultrasonic transducer may further include a pair of insulating films disposed on the outer sides of the pair of electrodes.

A dummy region where the electrode is not formed may be provided at an edge of the piezoelectric film.

The dummy region may have a closed shape along the periphery of the electrode.

The housing may include a through hole for exposing at least a part of a rear surface of the ultrasonic transducer to the outside.

The through hole can be made of a single hole.

The through hole may be formed of a plurality of holes by a mesh structure.

The piezoelectric film patch type therapeutic ultrasound generating apparatus according to another embodiment of the present invention may further include an ultrasound gel layer disposed in the depression in a state of being disposed below the ultrasound transducer.

Further, the piezoelectric film patch type therapeutic ultrasound generating apparatus according to another embodiment of the present invention may further include a cover sheet which is detachably attached to the bottom surface of the housing in a state of covering the ultrasound gel layer.

A piezoelectric film patch type ultrasonic generator for treatment according to an embodiment of the present invention includes a housing and an ultrasonic transducer composed of a flexible piezoelectric film and fixed to the housing. The housing is formed to have a space behind the ultrasonic transducer.

The housing may have flexibility, and the housing may include a support disposed in the space and configured to support a rear surface of the ultrasonic transducer.

The ultrasonic transducer may be detachably attached to the housing so as to exchange any one of the housing and the ultrasonic transducer.

According to the present invention, a housing for fixing an ultrasonic transducer in the form of a piezoelectric film patch is formed so as to expose at least a part of the rear surface of the ultrasonic transducer to the outside, so that heat generated when ultrasonic waves with high output for a long time are generated for therapeutic purposes And the energy transmitted to the rear surface of the piezoelectric film can be cut off. Thus, the temperature of the ultrasonic transducer can be prevented from being excessively increased, and the intensity of ultrasonic energy irradiated to the skin can be increased.

Further, since the housing and the ultrasonic transducer are detachably attached to each other and the housing or the ultrasonic transducer can be easily exchanged, only the problem of the housing and the ultrasonic transducer can be removed and the remainder can be recycled.

Further, since the ultrasonic transducer has the dummy region where no electrode is formed on the edge of the piezoelectric film, the electrodes can be prevented from being electrically short-circuited to each other.

1 is a perspective view of a piezoelectric film patch type ultrasonic generator for treatment according to an embodiment of the present invention.
2 is a bottom perspective view of a piezoelectric film patch type ultrasonic generator for treatment according to an embodiment of the present invention.
3 is an exploded perspective view of a piezoelectric film patch type ultrasonic generator for treatment according to an embodiment of the present invention.
4 is a cross-sectional view taken along the line IV-IV in FIG.
5 is a view for explaining an ultrasonic patch of a piezoelectric film patch type ultrasonic generator for treatment according to an embodiment of the present invention.
6 is a view for explaining an ultrasonic patch of a piezoelectric film patch type ultrasonic generator for treatment according to another embodiment of the present invention.
7 is a view for explaining an ultrasonic patch of a piezoelectric film patch-type ultrasonic generator for treatment according to another embodiment of the present invention.
8 is a cross-sectional view of a piezoelectric film patch type ultrasonic generator for treatment according to another embodiment of the present invention.

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

Referring to FIGS. 1 and 2, a piezoelectric film patch type ultrasonic generator according to an embodiment of the present invention includes a housing 100 and an ultrasonic transducer 200.

The housing 100 may be formed of any material having flexibility such as urethane, silicone, and rubber. The housing 100 may be formed of a flexible polymer material having no toxicity in consideration of its use in a human body.

The ultrasonic transducer 200 is formed of a flexible piezoelectric film. For example, in the ultrasonic transducer 200 formed of a flexible piezoelectric film, thin electrodes are formed on both surfaces of a piezoelectric film having a piezoelectric effect Lt; / RTI > For example, the piezoelectric film may be formed of a piezoelectric polymer such as a piezoelectric PVDF (polyvinylidene fluoride). The ultrasonic transducer 200 will be described later.

At this time, the ultrasonic transducer 200 may be detachably attached to the housing 100 so that either the housing 100 or the ultrasonic transducer 200 can be exchanged. That is, when the ultrasonic transducer 200 is attached to the housing 100 and a problem occurs in either of them, the ultrasonic transducer 200 can be separated and replaced with a new one. If the housing 100 and the ultrasonic transducer 200 are provided in the form of a plurality of sets, if a problem occurs in either the housing 100 or the ultrasonic transducer 200, Can be solved and the cost can be reduced accordingly.

The housing 100 may be formed such that at least a part of the rear surface of the ultrasonic transducer 200 is exposed to the outside. Here, the rear surface of the ultrasonic transducer 200 refers to the opposite surface of the surface facing the skin when used in a human body. For example, as shown in FIGS. 1 and 3, the housing 100 may have a through hole 101 that exposes a central portion of the ultrasonic transducer 200. For example, the through hole 101 may be formed at the center of the housing 100, and a part of the ultrasonic transducer 200 is exposed through the through hole 101. Since the through hole 101 is provided in the housing 100, in order to use the piezoelectric film patch type ultrasound generating apparatus for treatment, a relatively high ultrasonic output should be continuously generated. As a result, heat generated by the ultrasound transducer can be effectively discharged. The hole structure of the housing 100 of the patch type ultrasonic wave generator prevents the damage of the ducer and has an effect of forming an air layer (airbag) on one side of the ultrasonic transducer, thereby raising the output strength of the ultrasonic transducer.

Meanwhile, according to another embodiment of the present invention, as shown exemplarily in FIG. 6, the through hole 102 can be made of a plurality of holes by the mesh structure 102a. By forming the through hole 102 by the mesh structure 102a, it is possible to protect the ultrasonic transducer 200 and reinforce the strength of the housing 100 in addition to the heat radiation and airbagging effect as described above.

On the other hand, a depression 103 may be formed on the bottom surface 105 of the housing 100. Here, the bottom surface 105 of the housing 100 is a surface as shown in FIG. 2, and the bottom surface 105 can be used in a state in which the bottom surface 105 is in close contact with the skin of the human body when the ultrasonic generator is used.

When the through hole 101 is formed in the housing 100, the depressed portion 103 may be formed to surround the through hole 101. At this time, the depressed portion 103 may be formed as shown in FIG. And the bottom surface 104 may be arranged so as to surround the through hole 101. The ultrasonic transducer (200) is located at the depression (103). 2 and 4, when the thickness of the ultrasonic transducer 200 and the depth of the depression 103 are similar, one surface of the ultrasonic transducer 200 and the bottom surface 105 of the housing 100 are approximately A flat surface can be obtained.

At this time, the edge of the ultrasonic transducer 200 may be attached to the bottom surface 104 of the depression 103 and attached to the housing 100. For example, the ultrasonic transducer 200 may be fixed to the housing 100 by a double-sided adhesive tape 110 attached to the bottom surface 104 of the depression 103. 3, the double-sided adhesive tape 110 may be attached to the bottom surface 104 of the depression 103 and the ultrasonic transducer 200 may be adhered thereto. At this time, the ultrasonic transducer 200 is attached to the housing 100 in a detachable manner by the double-sided adhesive tape 110.

3, the ultrasonic transducer 200 includes a flexible piezoelectric film 201, a pair of electrodes 203 and 204 formed on both surfaces of the piezoelectric film 201, And a pair of wires 205 and 206 electrically connected to the electrodes 203 and 204, respectively. On the other hand, insulating films 207 and 208 surrounding the piezoelectric film 201 and the pair of electrodes 203 and 204 at both sides may be provided. When the electric wires 205 and 206 of one phase are connected to an external power source (not shown) and the pulse power is applied, the ultrasonic transducer 200 vibrates, thereby generating ultrasonic waves. Since the ultrasonic transducer 200 can be directly attached to the skin to be used for treatment, the insulating films 207 and 208 formed outside the electrodes 203 and 204 are provided.

The housing 100 may have a wire discharge portion 113 having a passage 111 for discharging the wires 205 and 206 of the ultrasonic transducer 200. The wire discharge portion 113 may be connected to the depression 103 of the housing 110 and the passage 111 may be connected to the depression 103. The wire discharge part 113 may have a space 114 connected to the depression 103 and the electric wires 205 and 206 are gathered in the space 114 and connected to the outside through the passage 111. [ For this, the passage 111 may be formed to connect the upper surface of the housing 100 of the depression 103. By providing the passage 111, the electric wires 205 and 206 of the ultrasonic transducer 200 can be discharged to the upper surface of the housing 100 without being in contact with the skin.

The housing 100 and the ultrasonic transducer 200 can be separated from each other so that when the housing 100 is damaged, the ultrasonic transducer 200 composed of a relatively high-priced piezoelectric film is attached to the new housing 100 The connection can be reused by connecting.

Referring to FIG. 5, dummy regions 202a and 202b where the electrodes 203 and 204 are not formed are formed at the edges of the piezoelectric film 201, respectively. The dummy regions 202a and 202b may be formed to have a closed shape along the periphery of the electrodes 203 and 204. [ When the dummy regions 202a and 202b are provided so that the electrodes 203 and 204 are not formed up to the ends of the piezoelectric film 201 and high electric energy for generating a high output ultrasonic wave for therapeutic purposes is applied for a long time It is possible to prevent the electrodes from being short-circuited. Although the dummy regions 202a and 202b are shown on both sides of the piezoelectric film 201, the dummy region may be formed on only one of both surfaces of the piezoelectric film 201. In this case,

Referring to FIG. 7, according to another embodiment of the present invention, the housing 1100 may be formed to have a space 1101 behind the ultrasonic transducer 200. That is, the rear surface of the ultrasonic transducer 200 and the surface of the housing 1100 facing the rear surface of the ultrasonic transducer 200 are spaced from each other, and a space 1101 may be formed behind the ultrasonic transducer 200. An air layer (airbag) is formed behind the ultrasonic transducer 200 by the space 1101, so that the output intensity of the ultrasonic transducer can be increased.

The housing 1100 may have flexibility and the housing 1100 may include a support 1103 disposed in the space 1101 and configured to support the rear surface of the ultrasonic transducer 200 . For example, as shown in the drawing, the supporting portion 1103 may have the form of a column protruding toward the rear surface of the ultrasonic transducer 200. Such a support 1103 prevents the rear surface of the ultrasonic transducer 200 from being brought into close contact with the facing surface of the housing 1100 when the flexible housing 1100 and the ultrasonic transducer 200 are bent It is possible to prevent the space behind the ultrasonic transducer 200 from disappearing.

An ultrasonic wave generating apparatus according to another embodiment of the present invention will be described with reference to FIG.

According to the present embodiment, the ultrasonic transducer 200 is disposed in the depression 103 of the housing 100, and the ultrasonic gel layer 400 is disposed under the ultrasonic transducer 200, as shown in FIG. 8 (a). That is, as shown in the figure, the ultrasonic transducer 200 and the ultrasonic wave gel layer 400 are sequentially disposed on the depressed portion 103 of the housing 100. The ultrasonic gel layer 400 is disposed between the ultrasonic transducer 200 and the skin to function as an air layer. The ultrasound gel layer 400 may be an ultrasound gel used in conventional ultrasound procedures or a solidified ultrasound gel in a pad form.

At this time, the cover sheet 500 may be detachably attached to the bottom surface of the housing 100 in a state of covering the ultrasonic wave gel layer 400. In the ultrasonic generator before use, the cover sheet 500 is attached as shown in FIG. 8 (a), and the cover sheet 500 is removed just before use, and the state is as shown in FIG. 8 (b). The cover sheet 500 can prevent the ultrasound gel forming the ultrasound gel layer 400 from being exposed to the outside to be damaged or buried. The cover sheet 500 may be adhered to the bottom surface of the housing 100 with an adhesive layer formed at its edge.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

100: Housing
200: Ultrasonic transducer
101: Through hole
103: Depression
104: bottom surface
105: the bottom
110: double-sided adhesive tape
201: Piezoelectric film
203, 204: electrode
205, 206: Wires
207, 208: Insulating film
111: passage
113:
114: Space
400: Ultrasonic gel layer
500: Cover sheet

Claims (17)

Housing, and
And an ultrasonic transducer attached to the housing, the ultrasonic transducer being formed of a flexible piezoelectric film,
Wherein the housing is formed such that at least a part of a rear surface of the ultrasonic transducer is exposed to the outside. The method of claim 1,
A depression is formed in the bottom surface of the housing,
Wherein the ultrasonic transducer is located at the depression. 3. The method of claim 2,
Wherein the ultrasonic transducer has an edge attached to a bottom surface of the depression and attached to the housing. 4. The method of claim 3,
Wherein the ultrasonic transducer is detachably attached to the housing by a double-sided adhesive tape adhered to a bottom surface of the depressed portion. 5. The method of claim 4,
The ultrasonic transducer includes a flexible piezoelectric film, a pair of electrodes formed on both sides of the piezoelectric film, and a pair of electric wires electrically connected to the pair of electrodes,
Wherein the housing includes a wire discharging portion connected to the depressed portion and forming a passage through which the electric wire passes. The method of claim 5,
Wherein the passage is formed to connect the depression with the upper surface of the housing. The method of claim 5,
Wherein the ultrasonic transducer further comprises a pair of insulating films disposed on the outer sides of the pair of electrodes. The method of claim 5,
And a dummy region in which the electrode is not formed is provided at an edge of the piezoelectric film. 9. The method of claim 8,
Wherein the dummy region is formed to have a closed figure shape along the periphery of the electrode. The method of claim 1,
Wherein the housing has a through hole through which at least a part of a rear surface of the ultrasonic transducer is exposed to the outside. 11. The method of claim 10,
Wherein the through hole is a single hole. 11. The method of claim 10,
Wherein the through hole is composed of a plurality of holes formed by a mesh structure. 3. The method of claim 2,
And an ultrasonic gel layer disposed in the depressed portion in a state where the ultrasonic wave transducer is disposed under the ultrasonic transducer. The method of claim 13,
And a cover sheet detachably attached to a bottom surface of the housing in a state covering the ultrasonic wave gel layer. Housing, and
And an ultrasonic transducer composed of a flexible piezoelectric film and fixed to the housing,
Wherein the housing is formed to have a space behind the ultrasonic transducer. 16. The method of claim 15,
The housing is flexible,
Wherein the housing comprises a support disposed in the space and adapted to support a rear surface of the ultrasonic transducer. The method of claim 1,
Wherein the ultrasonic transducer is detachably attached to the housing so as to exchange any one of the housing and the ultrasonic transducer.
KR1020140130384A 2014-09-29 2014-09-29 Patch-type ultrasonic generating device KR20160037597A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106390278A (en) * 2016-10-18 2017-02-15 苏州国科昂卓医疗科技有限公司 Ultrasonic therapeutic apparatus
KR20210125666A (en) * 2020-04-09 2021-10-19 이태형 Multipurpose anti-bacterial patch and manufacturing method thereof
WO2022010025A1 (en) * 2019-07-11 2022-01-13 엘지전자 주식회사 Wearable device
KR20220169088A (en) * 2021-06-18 2022-12-27 재단법인대구경북과학기술원 magnetic patch capable of ultrasonic stimulation and its manufacturing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106390278A (en) * 2016-10-18 2017-02-15 苏州国科昂卓医疗科技有限公司 Ultrasonic therapeutic apparatus
WO2022010025A1 (en) * 2019-07-11 2022-01-13 엘지전자 주식회사 Wearable device
KR20210125666A (en) * 2020-04-09 2021-10-19 이태형 Multipurpose anti-bacterial patch and manufacturing method thereof
KR20220169088A (en) * 2021-06-18 2022-12-27 재단법인대구경북과학기술원 magnetic patch capable of ultrasonic stimulation and its manufacturing method

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