KR20160129332A - ultrasound transducer for high intensity focused ultrasound generating apparatus - Google Patents

ultrasound transducer for high intensity focused ultrasound generating apparatus Download PDF

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Publication number
KR20160129332A
KR20160129332A KR1020150061297A KR20150061297A KR20160129332A KR 20160129332 A KR20160129332 A KR 20160129332A KR 1020150061297 A KR1020150061297 A KR 1020150061297A KR 20150061297 A KR20150061297 A KR 20150061297A KR 20160129332 A KR20160129332 A KR 20160129332A
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KR
South Korea
Prior art keywords
piezoelectric element
ultrasonic
ultrasonic wave
shielding member
wave reducing
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KR1020150061297A
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Korean (ko)
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KR101747817B1 (en
Inventor
조성찬
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주식회사 코러스트
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Priority to KR1020150061297A priority Critical patent/KR101747817B1/en
Publication of KR20160129332A publication Critical patent/KR20160129332A/en
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    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • A61N2007/0004—Applications of ultrasound therapy
    • A61N2007/0034—Skin treatment

Abstract

The ultrasonic transducer used in the high-intensity focusing ultrasonic wave generating device includes a piezoelectric element formed to have a concave shape when the ultrasonic wave is focused, first and second electrodes respectively formed on both surfaces of the piezoelectric element, Shielding member disposed in front of or behind the piezoelectric element in a state of overlapping with the center of the piezoelectric element in the front-rear direction so as to reduce or block the ultrasonic waves generated in the center of the piezoelectric element. It is possible to reduce the intensity of the ultrasonic waves generated at the center of the ultrasonic transducer and traveling forward, by disposing the ultrasonic wave reducing / blocking member for reducing or blocking the ultrasonic waves at positions overlapping with the central portion of the piezoelectric element in the longitudinal direction.

Description

[0001] The present invention relates to an ultrasound transducer for high intensity focused ultrasound generating apparatus,

The present invention relates to an ultrasonic transducer used in a high-intensity focused ultrasonic wave generating apparatus for generating high-intensity focused ultrasonic waves used in medical instruments and the like.

Background of the Invention [0002] Focused ultrasound therapy techniques for treating a lesion of a patient using a high intensity focused ultrasound or for skin aesthetics are known. Such focused ultrasound therapy is performed by a high intensity focused ultrasound generator using a focused ultrasound transducer to produce high intensity focused ultrasound.

The high-intensity focused ultrasonic wave generating device focuses the ultrasonic wave to a specific region or point. If the intensity of the focused ultrasonic wave is too high, there is a problem that it may adversely affect the human body tissue. In particular, if the ultrasonic intensity at the central portion of the high-intensity focused ultrasonic wave generating device is excessively high, the human tissue may be adversely affected.

SUMMARY OF THE INVENTION An object of the present invention is to provide an ultrasonic transducer capable of solving the problem of excessively increasing the intensity of ultrasonic waves at the central portion in a high intensity focused ultrasonic wave generating apparatus.

The ultrasound transducer used in the high-intensity focused ultrasound generating apparatus according to the embodiment of the present invention includes a piezoelectric element formed to have a concave shape when the ultrasound waves are converged, first and second electrodes formed on both surfaces of the piezoelectric element, Two electrodes, and an ultrasonic wave reducing / blocking member disposed in front of or behind the piezoelectric element in a state of overlapping with the center of the piezoelectric element in the front-rear direction so as to reduce or block the ultrasonic waves generated in the center of the piezoelectric element.

The ultrasonic wave reducing / shielding member may be formed of a material that blocks or absorbs ultrasonic waves.

The first and second electrodes may be formed on the front surface and the rear surface of the piezoelectric element, respectively, and the ultrasonic attenuating / shielding member may be arranged to contact any one of the first and second electrodes.

The first and second electrodes may be formed on the front surface and the rear surface of the piezoelectric element, respectively, and the ultrasonic attenuating / shielding member may be disposed in front of the first electrode in a state of being separated from the first electrode.

The ultrasonic abatement / shutoff member may be fixed by a connection member connected to the surface of the first electrode.

The connecting member may have a rod shape or a hollow cylindrical shape.

The ultrasonic wave reducing / shielding member may be fixed by a connecting member connected to the edge of the piezoelectric element.

The ultrasonic abatement / shut-off member may be formed of an air bag or silicon.

According to the present invention, by disposing the ultrasonic wave reducing / blocking member for reducing or blocking ultrasonic waves at positions overlapping with the central portion of the piezoelectric element in the longitudinal direction, the intensity of the ultrasonic waves generated at the center portion of the ultrasonic transducer and traveling forward can be reduced .

1 is a view showing an example of a high intensity focused ultrasound generating apparatus equipped with an ultrasound transducer according to an embodiment of the present invention.
2 is a cross-sectional view of an ultrasonic transducer according to an embodiment of the present invention.
3 is a cross-sectional view of an ultrasonic transducer according to another embodiment of the present invention.
4 is a cross-sectional view of an ultrasonic transducer according to another embodiment of the present invention.
5 is a cross-sectional view of an ultrasonic transducer according to another embodiment of the present invention.
6 is a cross-sectional view of an ultrasonic transducer according to another embodiment of the present invention.
7 is a cross-sectional view of an ultrasonic transducer 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.

The ultrasonic transducer according to the embodiment of the present invention can be used in a high-intensity focused ultrasonic wave generating device for generating high intensity focused ultrasonic waves. For example, referring to FIG. 1, the ultrasound transducer 10 may be installed in the high-intensity focused ultrasound generating apparatus 100 and may function to focus ultrasound at an ultrasound focusing point or region. At this time, although the case where the ultrasonic waves are converged to one point is shown as an example, the ultrasonic waves may be focused in a certain area.

1, the high intensity focused ultrasound generating apparatus 100 includes a housing 101. The housing 101 forms an installation space S in which the ultrasonic transducer 10 according to the embodiment of the present invention is disposed. do. The installation space S is filled with an ultrasonic transmission medium (e.g., water) W, and ultrasonic waves generated in the ultrasonic transducer 10 pass through the ultrasonic transmission medium W. [ The high intensity focused ultrasound generating apparatus 100 may include a cover 103 covering the entire surface of the installation space S. The cover 103 may be formed of a synthetic resin material having good ultrasonic transmission characteristics.

1, the ultrasound transducer 10 and the high-intensity focused ultrasound generating apparatus 100 may be configured to emit ultrasound waves in a downward direction. To this end, the housing 101 of the high-intensity focused ultrasound generating apparatus 100 may have a shape opened downward. The ultrasound transducer 10 may include a high-intensity focused ultrasound generating apparatus 100 (Not shown).

The ultrasound transducer 10 according to the embodiment of the present invention may be installed in the high intensity focused ultrasound generating apparatus 100 so that the ultrasound transducer 10 can be moved in position. And a driving unit 105 for moving the ultrasonic transducer 10. Although not shown in the drawings, the driving unit 105 may include a driving motor for providing driving force, and a connecting member for transmitting the driving force of the driving motor to the ultrasonic transducer 10. Further, the high-intensity focused ultrasonic wave generating apparatus 100 may include a controller for controlling the operation of the drive motor and the power supply to the ultrasonic transducer 10.

The ultrasonic transducer 10 includes a piezoelectric element 11 and first and second electrodes 12 and 13 formed on both surfaces of the piezoelectric element 11, respectively. The ultrasonic transducer 10 may further include a housing 15 for fixing the piezoelectric elements 11 formed on both sides of the first and second electrodes 12 and 13. That is, the piezoelectric element 11 having the first and second electrodes 12 and 13 formed on its both sides is placed in the installation space S of the high-intensity focusing ultrasonic generator 100 in a state where the piezoelectric element 11 is fixed to the housing 15 .

The housing 15 of the ultrasonic transducer 10 may be connected to the driving unit 105 through the connecting member 30. [

The first electrode 12 and the second electrode 13 may be formed of a metal material having a good electrical conductivity. The first electrode 12 and the second electrode 13 may be made of a metal material, As shown in FIG. Referring to FIG. 1, the first and second electrodes 12 and 13 may be formed on both surfaces of the piezoelectric element 11, that is, on the front surface and the rear surface, respectively. On the other hand, although not shown in the figure, the first and second electrodes 12 and 13 may be connected to a pulse power generator (not shown) by a cable. The pulse power generated by the pulse power generator is applied to the first and second electrodes 12 and 13 through the cable so that the piezoelectric element 11 is subjected to ultrasonic vibration and thus ultrasonic waves are generated.

Referring to FIGS. 1 and 2, the piezoelectric element 11 may have a concave shape when seen from the place where the ultrasonic waves are focused. Specifically, the piezoelectric element 11 may be formed of a parabolic curved surface or a spherical surface so as to focus ultrasonic waves at a point or an area spaced a certain distance downward. Further, the piezoelectric element 11 may be formed to have a concave surface in the form of a parabolic column so as to generate focused ultrasonic waves in the form of a line.

The ultrasonic transducer 10 according to the embodiment of the present invention includes the ultrasonic wave reducing / shielding members 110, 120, 130, 140, 150, and 160 disposed at the front or rear of the piezoelectric element 11. The ultrasonic abatement / shut-off members 110, 120, 130, 140, 150, and 160 function to reduce or cut off ultrasonic waves generated at the center of the piezoelectric element 11. The ultrasonic wave blocking members 110, 120, 130, 140, 150, and 160 may be formed of a material that does not absorb or pass ultrasonic waves. For example, the ultrasonic abatement blocking member 110, 120, 130, 140, 150, and 160 may be formed of a material capable of absorbing or blocking air, silicone, or other ultrasonic waves.

At this time, the ultrasonic wave reducing / shielding members 110, 120, 130, 140, 150, and 160 are disposed in front of or behind the piezoelectric element 11 in a state of overlapping with the central portion of the piezoelectric element 11 along the forward and backward directions.

Hereinafter, the ultrasonic abatement / shutoff members 110, 120, 130, 140, 150, and 160 according to the embodiments of the present invention will be described in turn with reference to FIG. 2 to FIG.

2, the ultrasonic wave reducing / shielding member 110 may be a sound absorbing material which is in close contact with the second electrode 13 contacting the rear surface of the piezoelectric element 11. At this time, the ultrasonic wave reducing / shielding member 110 may have a substantially circular cross section corresponding to the center portion of the piezoelectric element 11. The sound absorbing material is brought into close contact with the second electrode 13 formed on the rear surface of the piezoelectric element 11 so that acoustic backing does not occur at the center of the piezoelectric element 11 and ultrasound generated from the front surface of the center portion of the piezoelectric element 11 Energy is weakened.

3, the ultrasonic attenuating / shielding member 120 may be arranged to contact the first electrode 12 formed on the front surface of the piezoelectric element 11. At this time, the ultrasonic wave reducing / blocking member 120 may be formed of a material capable of absorbing or blocking ultrasonic waves.

4 to 6, the ultrasonic wave reducing / shielding members 130, 140 and 150 may be spaced apart from the first electrode 12 formed on the front surface of the piezoelectric element 11.

4 and 5, the ultrasonic wave reducing / shielding members 130 and 140 may be fixed by connecting members 131 and 141 connected to the surface of the first electrode 12, respectively. The connecting member 131 of FIG. 4 has a rod shape, and the connecting member 141 of FIG. 5 has a hollow cylindrical shape.

6, the ultrasonic wave reducing / shielding member 150 may be fixed by a connecting member 151 connected to the edge of the piezoelectric element 11. 6, the connecting member 151 may have a bar shape connecting the edge of the piezoelectric element 11, and the ultrasonic attenuating / shielding member 150 may be formed in the middle of the connecting member 151, Lt; / RTI >

7, the ultrasonic wave reducing / shielding member 160 may be an air pocket disposed in close contact with the first electrode 12 formed on the front surface of the piezoelectric element 11.

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: High intensity focused ultrasound generating device
10: Ultrasonic transducer
11: piezoelectric element
12, 13: electrode
15: Housing

Claims (9)

An ultrasound transducer for use in a high-intensity focused ultrasound generating device,
A piezoelectric element formed to have a concave shape when the ultrasonic wave is focused,
First and second electrodes respectively formed on both surfaces of the piezoelectric element, and
And an ultrasonic wave reducing / blocking member disposed in front of or behind the piezoelectric element in a state of overlapping with the center of the piezoelectric element in the front-rear direction so as to reduce or block the ultrasonic waves generated in the central portion of the piezoelectric element. The method of claim 1,
Wherein the ultrasonic wave reducing / shielding member is formed of a material that blocks or absorbs ultrasonic waves. The method of claim 1,
Wherein the first and second electrodes are formed on the front surface and the rear surface of the piezoelectric element, respectively,
And the ultrasonic wave reducing / shielding member is arranged to contact any one of the first and second electrodes. The method of claim 1,
Wherein the first and second electrodes are formed on the front surface and the rear surface of the piezoelectric element, respectively,
And the ultrasonic wave reducing / shielding member is disposed in front of the first electrode in a state of being separated from the first electrode. 5. The method of claim 4,
And the ultrasonic wave reducing / shielding member is fixed by a connecting member connected to the surface of the first electrode. The method of claim 5,
Wherein the connecting member is a rod-shaped ultrasonic transducer. The method of claim 5,
Wherein the connecting member has a hollow cylindrical shape. 5. The method of claim 4,
And the ultrasonic wave reducing / shielding member is fixed by a connecting member connected to the edge of the piezoelectric element. The method of claim 1,
Wherein the ultrasonic wave reducing / shielding member is formed of an air bag or silicon.
KR1020150061297A 2015-04-30 2015-04-30 ultrasound transducer for high intensity focused ultrasound generating apparatus KR101747817B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150061297A KR101747817B1 (en) 2015-04-30 2015-04-30 ultrasound transducer for high intensity focused ultrasound generating apparatus

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Application Number Priority Date Filing Date Title
KR1020150061297A KR101747817B1 (en) 2015-04-30 2015-04-30 ultrasound transducer for high intensity focused ultrasound generating apparatus

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KR20160129332A true KR20160129332A (en) 2016-11-09
KR101747817B1 KR101747817B1 (en) 2017-06-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018124461A1 (en) * 2016-12-30 2018-07-05 알피니언메디칼시스템 주식회사 Hifu device having blocking unit, and method for removing image noise of hifu device and protecting imaging transducer thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11864782B2 (en) 2017-11-30 2024-01-09 BTL Medical Solutions A. S. Shock wave device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7652411B2 (en) * 2006-09-18 2010-01-26 Medicis Technologies Corporation Transducer with shield

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018124461A1 (en) * 2016-12-30 2018-07-05 알피니언메디칼시스템 주식회사 Hifu device having blocking unit, and method for removing image noise of hifu device and protecting imaging transducer thereof

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