JP2021526324A - デュアル周波数超音波トランスデューサ - Google Patents
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Images
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52079—Constructional features
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
- G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
- G01S15/8952—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using discrete, multiple frequencies
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
- G01S15/8956—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using frequencies at or above 20 MHz
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8979—Combined Doppler and pulse-echo imaging systems
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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
- A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B8/48—Diagnostic techniques
- A61B8/481—Diagnostic techniques involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream
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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
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/70—Specific application
- B06B2201/76—Medical, dental
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
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- G01S7/52038—Details of receivers using analysis of echo signal for target characterisation involving non-linear properties of the propagation medium or of the reflective target
Abstract
Description
本出願は2018年5月3日に出願された米国仮特許出願第62/666,519号及び2018年7月31日に出願された米国特許出願第16/051,060号に関連し、それらの利益を主張し、それらの全体が参照により本明細書に組み込まれる。
本願の主題は、米国国立衛生研究所(NIH)によって与えられた認可番号5100220−連邦報告及び認可番号RO1CA189479の下で政府支援によってなされた。米国政府は、本発明に一定の権利を有する。
Claims (14)
- 高周波(HF)トランスデューサであって、多数のHFトランスデューサ素子を含むPZT材料のシートと、1つ又は複数の整合層と、前記HFトランスデューサ素子の前方に配置されたレンズと、前記HFトランスデューサ素子に接続する信号トレースを有する1つ又は複数のフレックス回路を支持する、前記PZT材料の背面上の支持フレームとを含む高周波(HF)トランスデューサと、
前記HFトランスデューサ素子に対して既知の位置にマークされた1つ又は複数の基準点と、
HF超音波信号を吸収するように構成され、前記HFトランスデューサ素子の背後に配置されている中間層と、
低周波(LF)トランスデューサであって、多数のLFトランスデューサ素子を含むPZT材料のシートと、1つ又は複数の整合層と、前記LFトランスデューサ素子に接続する信号トレースを有するフレックス回路とを含み、前記LFトランスデューサを基準点と位置合わせする位置合わせ機能を有する1つ又は複数のタブを含むLFトランスデューサと、
を含むデュアル周波数トランスデューサ。 - 前記位置合わせ機能は、前記LFトランスデューサの前記LFトランスデューサ素子に対して既知の位置にある位置合わせタブ上の穴を含む、請求項1に記載のデュアル周波数トランスデューサ。
- 前記中間層は、シリコーン粉末をドープしたエポキシで構成される、請求項1に記載のデュアル周波数トランスデューサ。
- 前記支持フレームの後面は、前記中間層の一部が嵌め込まれる凹部を有するエポキシで充填されている、請求項3に記載のデュアル周波数トランスデューサ。
- 前記支持フレームの裏側にある一組の位置合わせ柱と、
前記中間層が前記HFトランスデューサ素子と位置合わせされるように、前記位置合わせ柱と協調する前記中間層内の1つ又は複数のキー溝と、
をさらに含む請求項3に記載のデュアル周波数トランスデューサ。 - 前記中間層は、前記凹部が形成されているのと同じエポキシで前記凹部に接着されている、請求項4に記載のデュアル周波数トランスデューサ。
- 前記中間層は、前記HFトランスデューサの前記圧電層内の前記HFトランスデューサ素子の領域よりも大きい、請求項1に記載のデュアル周波数トランスデューサ。
- 前記中間層は、前記高周波トランスデューサ素子の位置に対して既知の位置でマークされた少なくとも1つの基準点を含み、前記LFトランスデューサ上の前記位置合わせ機能は、前記中間層上の前記少なくとも1つの基準点と位置合わせされる、請求項1に記載のデュアル周波数トランスデューサアレイ。
- 前記位置合わせ機能は、前記LFトランスデューサ内の整合層から延在するタブを含む、請求項2に記載のデュアル周波数トランスデューサ。
- 前記タブは、前記HFトランスデューサ上の基準点の上に配置するための穴を含む、請求項9に記載のデュアル周波数トランスデューサ。
- 高周波(HF)トランスデューサであって、多数のHFトランスデューサ素子を含むPZT材料のシートを含むHFトランスデューサと、
HF超音波信号を吸収し、低周波(LF)超音波信号を通過させるように構成されているバッキング材料と、
前記HFトランスデューサ素子に対して既知の位置で前記HFトランスデューサ素子の背後にマークされた1つ又は複数の基準点と、
低周波(LF)トランスデューサであって、多数のLFトランスデューサ素子を含み、前記LFトランスデューサを前記HFトランスデューサ素子と位置合わせするために前記1つ又は複数の基準点を使用して位置づけられる1つ又は複数の位置合わせタブを含む低周波(LF)トランスデューサと、
を含むデュアル周波数トランスデューサ。 - 前記LFトランスデューサの前記1つ又は複数の位置合わせタブは、前記LFトランスデューサの整合層に組み込まれている、請求項11に記載のデュアル周波数トランスデューサ。
- 前記1つ又は複数の位置合わせタブは、前記整合層を形成するエポキシ層に固定されている、請求項12に記載のデュアル周波数トランスデューサ。
- 前記1つ又は複数の位置合わせタブは、前記HFトランスデューサ素子に対して前記LFトランスデューサ素子を位置合わせするために基準点上に配置されている穴を含む、請求項13に記載のデュアル周波数トランスデューサ。
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US201862666519P | 2018-05-03 | 2018-05-03 | |
US62/666,519 | 2018-05-03 | ||
US16/051,060 | 2018-07-31 | ||
US16/051,060 US11169265B2 (en) | 2018-05-03 | 2018-07-31 | Dual frequency ultrasound transducer |
PCT/US2019/028832 WO2019212813A1 (en) | 2018-05-03 | 2019-04-24 | Dual frequency ultrasound transducer |
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US11169265B2 (en) * | 2018-05-03 | 2021-11-09 | Fujifilm Sonosite, Inc. | Dual frequency ultrasound transducer |
EP3853597A4 (en) * | 2018-09-21 | 2022-06-01 | Butterfly Network, Inc. | ACOUSTIC DAMPING FOR ULTRASONIC IMAGING DEVICES |
CN116209470A (zh) * | 2020-08-07 | 2023-06-02 | 阿尔菲斯医疗股份有限公司 | 用于治疗癌症的用于增强的声动力疗法的超声阵列 |
CN114190976B (zh) * | 2021-11-15 | 2023-07-21 | 北京航空航天大学 | 一种双频超声换能器阵列及其工作方法 |
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JP2010087965A (ja) * | 2008-10-01 | 2010-04-15 | Konica Minolta Medical & Graphic Inc | アレイ型超音波振動子の製造方法 |
JP2010233224A (ja) * | 2008-10-17 | 2010-10-14 | Konica Minolta Medical & Graphic Inc | アレイ型超音波振動子 |
WO2017091632A1 (en) * | 2015-11-25 | 2017-06-01 | Fujifilm Sonosite, Inc. | High frequency ultrasound transducer and method for manufacture |
US20170282215A1 (en) * | 2016-04-01 | 2017-10-05 | Fujifilm Sonosite, Inc. | Dual frequency ultrasound transducer including an ultrahigh frequency transducer stack and a low frequency ultrasound transducer stack |
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US20190339387A1 (en) | 2019-11-07 |
WO2019212813A1 (en) | 2019-11-07 |
EP3788361A1 (en) | 2021-03-10 |
EP3788361A4 (en) | 2022-01-19 |
JP2023179625A (ja) | 2023-12-19 |
JP7362659B2 (ja) | 2023-10-17 |
US20220066027A1 (en) | 2022-03-03 |
US11169265B2 (en) | 2021-11-09 |
US11774589B2 (en) | 2023-10-03 |
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