JP7384448B2 - 圧電トランシーバーを有する画像処理装置 - Google Patents
圧電トランシーバーを有する画像処理装置 Download PDFInfo
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- 238000012545 processing Methods 0.000 title claims description 12
- 238000002604 ultrasonography Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 7
- 229910013336 LiNiO3 Inorganic materials 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 description 24
- 230000004044 response Effects 0.000 description 14
- 238000003491 array Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 210000001835 viscera Anatomy 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005459 micromachining Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000010895 photoacoustic effect Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000012285 ultrasound imaging Methods 0.000 description 1
Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
-
- 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
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0833—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving detecting or locating foreign bodies or organic structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/42—Details of probe positioning or probe attachment to the patient
- A61B8/4272—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue
- A61B8/4281—Details of probe positioning or probe attachment to the patient involving the acoustic interface between the transducer and the tissue characterised by sound-transmitting media or devices for coupling the transducer to the tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/56—Details of data transmission or power supply
-
- 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
- B06B1/0292—Electrostatic transducers, e.g. electret-type
-
- 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
- B06B1/0603—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 a piezoelectric bender, e.g. bimorph
-
- 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
-
- 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
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
- B81B3/0018—Structures acting upon the moving or flexible element for transforming energy into mechanical movement or vice versa, i.e. actuators, sensors, generators
- B81B3/0021—Transducers for transforming electrical into mechanical energy or vice versa
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
-
- 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
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
-
- 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
- G01S15/8925—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array the array being a two-dimensional transducer configuration, i.e. matrix or orthogonal linear arrays
-
- 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
- G01S7/52079—Constructional features
- G01S7/5208—Constructional features with integration of processing functions inside probe or scanhead
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/302—Sensors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/852—Composite materials, e.g. having 1-3 or 2-2 type connectivity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/028—Microscale sensors, e.g. electromechanical sensors [MEMS]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/12—Manufacturing methods specially adapted for producing sensors for in-vivo measurements
- A61B2562/125—Manufacturing methods specially adapted for producing sensors for in-vivo measurements characterised by the manufacture of electrodes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Gynecology & Obstetrics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
MUTアレイ(400)の帯域幅がより広くなるので、MUTアレイはより高度な作動モードで作動することができる。
Claims (10)
- 複数のマイクロマシン超音波トランスデューサ(MUT)を備えたアレイであって、
前記複数のマイクロマシン超音波トランスデューサ(MUT)は、第1および第2の行を有する2次元アレイに配置され、
第1の行のマイクロマシン超音波トランスデューサ(MUT)は、水平方向へ水平ピッチによって等間隔に配置され、第2の行のマイクロマシン超音波トランスデューサ(MUT)は、水平方向へ水平ピッチによって等間隔に配置され、
第2の行のマイクロマシン超音波トランスデューサ(MUT)は、第1の行のマイクロマシン超音波トランスデューサ(MUT)に対して水平方向に沿って第1の水平距離だけ推移され、第1の行のマイクロマシン超音波トランスデューサ(MUT)に対して垂直方向に沿って第1の垂直距離だけ推移され、
前記第1の水平距離が0より大きく、かつ前記水平ピッチより小さく、そして、前記第1垂直距離が、前記複数のマイクロマシン超音波トランスデューサ(MUT)のうち1つのマイクロマシン超音波トランスデューサ(MUT)の水平幅の10分の1から前記マイクロマシン超音波トランスデューサ(MUT)の垂直寸法の半分までの範囲内である、
アレイにおいて、
前記複数のマイクロマシン超音波トランスデューサ(MUT)の各々が、前記垂直方向に対してランダムな角度によって回転される、
アレイ。 - 前記アレイが第3行を備えており、前記第3行のマイクロマシン超音波トランスデューサ(MUT)が、前記第1行のマイクロマシン超音波トランスデューサ(MUT)に対して第2水平距離によって水平方向に沿って推移され、前記第2水平距離が0より大きく、かつ前記第1水平距離より小さい、請求項1に記載のアレイ。
- 前記複数のマイクロマシン超音波トランスデューサ(MUT)の各々が電極を備えており、前記電極の投影領域の形状が長方形、楕円形および円形またはそれらの組み合わせのうち1つである、請求項1又は2に記載のアレイ。
- 前記複数のマイクロマシン超音波トランスデューサ(MUT)の各々の垂直寸法が、前記マイクロマシン超音波トランスデューサ(MUT)の水平幅より大きい、請求項1~3のいずれか一項に記載のアレイ。
- 前記複数のマイクロマシン超音波トランスデューサ(MUT)の各々が、1つ以上の非対称的な振動モードを有する、請求項1~4のいずれか一項に記載のアレイ。
- 前記複数のマイクロマシン超音波トランスデューサ(MUT)の各々が、圧電マイクロマシン超音波トランスデューサ(pMUT)である、請求項1~5のいずれか一項に記載のアレイ。
- 前記複数のマイクロマシン超音波トランスデューサ(MUT)の各々が、PZT、KNN、PZT-N、PMN-Pt、AlN、Sc-AlN、ZnO、PVDFおよびLiNiO3の少なくとも1つから作られる圧電気層を備えている、請求項1~6のいずれか一項に記載のアレイ。
- 前記アレイの作動上の帯域幅が、前記マイクロマシン超音波トランスデューサ(MUT)の対称的な2次元アレイの作動上の帯域幅より広い、請求項1~7のいずれか一項に記載のアレイ。
- 画像処理システムであって、
圧力波を生成し外部圧力波を電気信号へ変換するためのトランシーバータイルと、
前記トランシーバータイルを制御するための制御装置とを備えた画像処理システムであって、
前記トランシーバータイルは請求項1~8のいずれか一項に記載のアレイを含む、
画像処理システム。 - 2次元アレイが第3行を備えており、前記第3行のマイクロマシン超音波トランスデューサ(MUT)が、第1行のマイクロマシン超音波トランスデューサ(MUT)に対し第2水平距離によって水平方向に沿って推移され、前記第2水平距離が0より大きく、かつ前記第1水平距離より小さい、請求項9に記載の画像処理システム。
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JP2023143351A JP2023166501A (ja) | 2018-04-11 | 2023-09-05 | 圧電トランシーバーを有する画像処理装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US15/951,118 US10656007B2 (en) | 2018-04-11 | 2018-04-11 | Asymmetrical ultrasound transducer array |
US15/951,118 | 2018-04-11 | ||
PCT/US2019/021515 WO2019199398A1 (en) | 2018-04-11 | 2019-03-10 | Imaging devices having piezoelectric transceivers |
JP2020555165A JP7178156B2 (ja) | 2018-04-11 | 2019-03-10 | 圧電トランシーバーを有する画像処理装置 |
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US (4) | US10656007B2 (ja) |
EP (2) | EP3773228B1 (ja) |
JP (3) | JP7178156B2 (ja) |
KR (5) | KR20240058203A (ja) |
CN (2) | CN112292084B (ja) |
IL (3) | IL293259B2 (ja) |
WO (1) | WO2019199398A1 (ja) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US11039814B2 (en) | 2016-12-04 | 2021-06-22 | Exo Imaging, Inc. | Imaging devices having piezoelectric transducers |
US10656007B2 (en) | 2018-04-11 | 2020-05-19 | Exo Imaging Inc. | Asymmetrical ultrasound transducer array |
US10648852B2 (en) | 2018-04-11 | 2020-05-12 | Exo Imaging Inc. | Imaging devices having piezoelectric transceivers |
WO2019226547A1 (en) | 2018-05-21 | 2019-11-28 | Exo Imaging, Inc. | Ultrasonic transducers with q spoiling |
CA3105459C (en) | 2018-09-25 | 2023-08-15 | Exo Imaging, Inc. | Imaging devices with selectively alterable characteristics |
US11794209B2 (en) | 2019-09-12 | 2023-10-24 | Exo Imaging, Inc. | Increased MUT coupling efficiency and bandwidth via edge groove, virtual pivots, and free boundaries |
EP3931636A4 (en) | 2020-03-05 | 2023-02-22 | Exo Imaging Inc. | ULTRASOUND IMAGING DEVICE WITH PROGRAMMABLE ANATOMY AND FLOW IMAGING |
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