JP6124897B2 - 超音波トランスデューサ及びその製造方法 - Google Patents
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- 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
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4488—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer the transducer being a phased array
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
Claims (12)
- 音響トランスデューサ素子の複数素子アレイを形成する音響トランスデューサ素子であって、
複数の圧電層を形成する圧電積層体と、
各圧電層は、第1の軸に沿って、受信電気駆動信号に機械的に応答し、前記第1の軸に直交する第2の軸に沿って、前記圧電層の対応する反対面に電気的に接続された電極の対によって供給される前記受信電気駆動信号によって、前記第1の軸に沿って振動し、
前記複数の圧電層は、前記圧電積層体において、2つの隣接する圧電層の間に配置される共通電極が、前記2つの隣接する圧電層の間で互いに共有され、
隣接していない第1の1組の電極が、1つの共通信号電極から並列に接続されるように配置され、
隣接していない第2の1組の電極が、1つの共通接地電極から並列に接続されるように配置され、
前記隣接していない第1の1組の電極は、音響放出方向に平行な方向に、前記圧電積層体の近接端部を越えて延出され、
前記近接端部は、前記圧電積層体の先端放出表面から反対側に延在し、
前記隣接していない第1の1組の電極は、前記圧電積層体の前記近接端部を越えて電気的な伝達をもたらす
音響トランスデューサ素子。 - 前記隣接していない第1の1組の電極は、低温はんだを介して接続される
請求項1に記載の音響トランスデューサ素子。 - 請求項1に記載の音響トランスデューサ素子のアレイを備える音響デバイス。
- 前記音響トランスデューサ素子は、前記第2の軸に沿って積層され、前記第2の軸に沿って隣り合う素子の線形アレイを形成し、前記アレイは、前記第2の軸に直交するアクティブ面から音響エネルギを送信する請求項3記載の音響デバイス。
- 前記アレイの2つの隣接する各音響トランスデューサ素子の間に挟まれた導電性電極は、隣接する前記共通接地電極に接続されている請求項4記載の音響デバイス。
- 前記アレイ内に配置された前記複数の音響トランスデューサ素子は、前記第2の軸と、前記第1の軸及び前記第2の軸の両方に直交する第3の軸とに沿って広がる前記アレイを形成する請求項3記載の音響デバイス。
- 前記音響トランスデューサ素子は、標準デカルト座標系のx次元(第2の軸)及びy次元(第3の軸)に沿って広がり、前記標準デカルト座標系のz次元(第1の軸)に沿って音響エネルギを放射するように構成される請求項6記載の音響デバイス。
- 第1のトランスデューサ素子が前記第1の軸に沿って第1の物理的寸法を有し、前記第1の物理的寸法によって定まる第1の対応する共鳴周波数を有し、第2のトランスデューサ素子が前記第1の物理的寸法とは異なる第2の物理的寸法を有し、前記第2の物理的寸法によって定まる第2の対応する共有周波数を有し、前記第1の共鳴周波数と、前記第2の共鳴周波数とが異なる請求項1記載の音響デバイス。
- 音響トランスデューサ素子の音響アレイを製造する方法において、
第1の軸に垂直な第2の軸に沿って印加され、各音響トランスデューサ素子は、信号電極と接地電極とを有し、電気駆動信号によって励起されると、前記音響トランスデューサ素子が音響エネルギを放射する方向である第1の軸に沿った第1の寸法を含む空間的な範囲を画定する複数の寸法をそれぞれ有する複数の音響トランスデューサ素子を準備するステップと、
前記第1の軸に直交する少なくとも1つの方向に沿って、前記複数の音響トランスデューサ素子を機械的に配置するステップと、
前記音響トランスデューサ素子に電気駆動信号を供給する電極として機能する複数の導電箔を準備し、前記導電箔を前記複数の音響トランスデューサ素子の間に挟み、隣接するトランスデューサ素子の隣接する接地電極の対が前記隣接するトランスデューサの対の間にある共通接地電極を共有するようにするステップと、
前記信号電極および前記共通接地電極を介して、電気駆動信号によって前記複数の音響トランスデューサ素子を駆動するステップとを有する方法。 - 前記配置するステップは、前記音響トランスデューサ素子を互いに単一の軸に沿って配置するステップを含む請求項9記載の方法。
- 前記配置するステップは、前記音響トランスデューサ素子を何れも前記第1の軸に直交する2つの次元に沿って配置するステップを含む請求項9記載の方法。
- 低温はんだによって、前記アレイの表面に音響トランスデューサ素子をはんだ付けするステップを更に有する請求項11記載の方法。
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US201161536636P | 2011-09-20 | 2011-09-20 | |
US61/536,636 | 2011-09-20 | ||
PCT/US2012/056393 WO2013043906A1 (en) | 2011-09-20 | 2012-09-20 | Ultrasound transducer and method for making the same |
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JP2014528219A JP2014528219A (ja) | 2014-10-23 |
JP6124897B2 true JP6124897B2 (ja) | 2017-05-10 |
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US (4) | US9327317B2 (ja) |
EP (1) | EP2759003B1 (ja) |
JP (1) | JP6124897B2 (ja) |
CN (2) | CN107398415B (ja) |
CA (1) | CA2849493C (ja) |
ES (1) | ES2829822T3 (ja) |
HK (1) | HK1245715A1 (ja) |
WO (1) | WO2013043906A1 (ja) |
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2012
- 2012-09-20 WO PCT/US2012/056393 patent/WO2013043906A1/en active Application Filing
- 2012-09-20 ES ES12834082T patent/ES2829822T3/es active Active
- 2012-09-20 US US13/623,730 patent/US9327317B2/en active Active
- 2012-09-20 CN CN201710728365.XA patent/CN107398415B/zh active Active
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EP2759003A1 (en) | 2014-07-30 |
US20130069484A1 (en) | 2013-03-21 |
US20160288168A1 (en) | 2016-10-06 |
CN107398415A (zh) | 2017-11-28 |
CN103946996B (zh) | 2017-10-03 |
US20240165666A1 (en) | 2024-05-23 |
EP2759003A4 (en) | 2015-10-07 |
CN107398415B (zh) | 2020-04-21 |
CN103946996A (zh) | 2014-07-23 |
HK1245715A1 (zh) | 2018-08-31 |
US20200061671A1 (en) | 2020-02-27 |
EP2759003B1 (en) | 2020-08-26 |
ES2829822T3 (es) | 2021-06-02 |
US10471471B2 (en) | 2019-11-12 |
JP2014528219A (ja) | 2014-10-23 |
CA2849493A1 (en) | 2013-03-28 |
CA2849493C (en) | 2018-07-17 |
US9327317B2 (en) | 2016-05-03 |
WO2013043906A1 (en) | 2013-03-28 |
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