JP6739510B2 - 超音波プローブの積層構造体、超音波プローブ及び超音波装置 - Google Patents
超音波プローブの積層構造体、超音波プローブ及び超音波装置 Download PDFInfo
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- JP6739510B2 JP6739510B2 JP2018242015A JP2018242015A JP6739510B2 JP 6739510 B2 JP6739510 B2 JP 6739510B2 JP 2018242015 A JP2018242015 A JP 2018242015A JP 2018242015 A JP2018242015 A JP 2018242015A JP 6739510 B2 JP6739510 B2 JP 6739510B2
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- 239000010410 layer Substances 0.000 claims description 131
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- 229910001369 Brass Inorganic materials 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims 2
- 238000010030 laminating Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000028161 membrane depolarization Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 3
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 3
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- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical group [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B06B1/0644—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 single piezoelectric element
- B06B1/0662—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 single piezoelectric element with an electrode on the sensitive surface
- B06B1/067—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 single piezoelectric element with an electrode on the sensitive surface which is used as, or combined with, an impedance matching layer
-
- 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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2437—Piezoelectric probes
-
- 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
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/54—Control of the diagnostic device
-
- 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
- B06B1/02—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
- B06B1/0644—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 single piezoelectric element
- B06B1/0662—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 single piezoelectric element with an electrode on the sensitive surface
- B06B1/0674—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 single piezoelectric element with an electrode on the sensitive surface and a low impedance backing, e.g. air
-
- 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
- B06B1/0644—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 single piezoelectric element
- B06B1/0662—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 single piezoelectric element with an electrode on the sensitive surface
- B06B1/0677—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 single piezoelectric element with an electrode on the sensitive surface and a high impedance backing
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
λ/4<t1<λ/2
t1+t2=λ/2であるので、
t2=(λ/2)−t1
である。
2 積層構造体
3 音響整合層
4 圧電層
5 背面層
6 バッキング層
7 積層体
100 超音波診断装置
Claims (8)
- 被検体に対して超音波を放射する圧電層と、
前記圧電層における前記被検体側とは反対側の面に設けられた背面層であって、前記圧電層の音響インピーダンスに対して、−20%〜+20%の範囲の差を有する音響インピーダンスを有する背面層と、を有し、
前記圧電層と前記背面層が、協同的に共振を励起する共振構造体を構成する、超音波プローブの積層構造体。 - 前記背面層を構成する材料には、圧電材料又は黄銅が含まれる、請求項1に記載の超音波プローブの積層構造体。
- 前記圧電層を構成する圧電材料には、圧電単結晶材料が含まれる、請求項1又は2に記載の超音波プローブの積層構造体。
- 前記背面層における前記圧電層とは反対側の面に設けられたバッキング層を有する、請求項1〜3のいずれか一項に記載の超音波プローブの積層構造体。
- 前記圧電層における前記被検体側の面に設けられた音響整合層を有する、請求項1〜4のいずれか一項に記載の超音波プローブの積層構造体。
- 前記音響整合層、前記圧電層及び背面層が積層されて構成される複数の積層体を有し、
該複数の積層体は、前記バッキング層における前記被検体側の面に設けられ、積層方向と直交する一方向又は積層方向と直交しなおかつ互いに直交する二方向に配列される、請求項5に記載の超音波プローブの積層構造体。 - 請求項1〜6のいずれか一項に記載の超音波プローブの積層構造体を有する超音波プローブ。
- 請求項7に記載の超音波プローブを備える、超音波装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018242015A JP6739510B2 (ja) | 2018-12-26 | 2018-12-26 | 超音波プローブの積層構造体、超音波プローブ及び超音波装置 |
CN201911307290.3A CN111380960B (zh) | 2018-12-26 | 2019-12-17 | 超声波探头的层叠结构体、超声波探头和超声波装置 |
US16/724,559 US20200206778A1 (en) | 2018-12-26 | 2019-12-23 | Multilayer structure of ultrasonic probe, ultrasonic probe, and ultrasonic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018242015A JP6739510B2 (ja) | 2018-12-26 | 2018-12-26 | 超音波プローブの積層構造体、超音波プローブ及び超音波装置 |
Publications (2)
Publication Number | Publication Date |
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JP2020103331A JP2020103331A (ja) | 2020-07-09 |
JP6739510B2 true JP6739510B2 (ja) | 2020-08-12 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2018242015A Active JP6739510B2 (ja) | 2018-12-26 | 2018-12-26 | 超音波プローブの積層構造体、超音波プローブ及び超音波装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20200206778A1 (ja) |
JP (1) | JP6739510B2 (ja) |
CN (1) | CN111380960B (ja) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07322394A (ja) * | 1994-03-31 | 1995-12-08 | Terumo Corp | 超音波探触子 |
JP3934200B2 (ja) * | 1997-04-03 | 2007-06-20 | アロカ株式会社 | 超音波探触子 |
JP3419327B2 (ja) * | 1998-11-04 | 2003-06-23 | 松下電器産業株式会社 | 磁器材料及び超音波探触子及び圧電振動子及びそれらの製造方法 |
JP2001276067A (ja) * | 2000-03-31 | 2001-10-09 | Toshiba Corp | 超音波探触子、その製造方法および超音波診断装置 |
US6685647B2 (en) * | 2001-06-28 | 2004-02-03 | Koninklijke Philips Electronics N.V. | Acoustic imaging systems adaptable for use with low drive voltages |
US6831394B2 (en) * | 2002-12-11 | 2004-12-14 | General Electric Company | Backing material for micromachined ultrasonic transducer devices |
US7224104B2 (en) * | 2003-12-09 | 2007-05-29 | Kabushiki Kaisha Toshiba | Ultrasonic probe and ultrasonic diagnostic apparatus |
JP2006325954A (ja) * | 2005-05-26 | 2006-12-07 | Toshiba Corp | 超音波プローブ及び超音波診断装置 |
JP2007134767A (ja) * | 2005-11-08 | 2007-05-31 | Hitachi Medical Corp | 超音波探触子 |
JP2009060501A (ja) * | 2007-09-03 | 2009-03-19 | Fujifilm Corp | バッキング材、超音波探触子、超音波内視鏡、超音波診断装置、及び、超音波内視鏡装置 |
US20150115773A1 (en) * | 2013-10-31 | 2015-04-30 | General Electric Company | Ultrasound transducer and method for manufacturing an ultrasound transducer |
EP3384849B1 (en) * | 2017-04-07 | 2022-06-08 | Esaote S.p.A. | Ultrasound probe with acoustic amplifier |
-
2018
- 2018-12-26 JP JP2018242015A patent/JP6739510B2/ja active Active
-
2019
- 2019-12-17 CN CN201911307290.3A patent/CN111380960B/zh active Active
- 2019-12-23 US US16/724,559 patent/US20200206778A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20200206778A1 (en) | 2020-07-02 |
CN111380960A (zh) | 2020-07-07 |
CN111380960B (zh) | 2024-03-22 |
JP2020103331A (ja) | 2020-07-09 |
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