JPH05277102A - Ultrasonic probe - Google Patents
Ultrasonic probeInfo
- Publication number
- JPH05277102A JPH05277102A JP7647492A JP7647492A JPH05277102A JP H05277102 A JPH05277102 A JP H05277102A JP 7647492 A JP7647492 A JP 7647492A JP 7647492 A JP7647492 A JP 7647492A JP H05277102 A JPH05277102 A JP H05277102A
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric ceramic
- piezoelectric
- ultrasonic
- reception
- polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、超音波診断装置等に使
用される超音波探触子に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic probe used in ultrasonic diagnostic equipment and the like.
【０００２】[0002]
【従来の技術】近年、超音波診断装置は、多くの医療分
野で利用され診断の大きな助力となっており、使用され
る超音波の周波数や探触子の形状も多様化し、単なる画
像診断装置としてではなくカラードップラ装置のように
別種の診断情報を同時に計測することが望まれている。
このような試みは例えば特開昭６４−７７３００号公報
記載に記載された構成が知られている。以下図４を参照
して従来の技術について説明する。2. Description of the Related Art In recent years, an ultrasonic diagnostic apparatus has been used in many medical fields and has been a great help for diagnosis, and the frequency of ultrasonic waves used and the shape of a probe have been diversified, so that a simple image diagnostic apparatus is used. Instead, it is desired to simultaneously measure different types of diagnostic information as in a color Doppler device.
For such an attempt, for example, the structure described in JP-A-64-77300 is known. A conventional technique will be described below with reference to FIG.
【０００３】図４において、１０１は第１の圧電セラミ
ック、１０２は第２の圧電セラミック、１０３は音響整
合層、１０４はバッキング材、１０５は外部電極、１０
６は内部電極である。In FIG. 4, 101 is a first piezoelectric ceramic, 102 is a second piezoelectric ceramic, 103 is an acoustic matching layer, 104 is a backing material, 105 is an external electrode, 10
Reference numeral 6 is an internal electrode.
【０００４】以上のような第５の構成において、第１の
圧電セラミック１０１と第２の圧電セラミック１０２と
の厚みは同じではなく、分極の方向は逆になっている。
内部電極１０６は分極の際使用されるものであり、通常
の駆動信号は外部電極１０５の間に与えられる。駆動信
号が外部電極１０５に印可されると、第１の圧電セラミ
ック１０１と第２の圧電セラミックの厚さの違いと分極
方向の違いにより、送信される超音波の帯域特性は単峰
性ではなく、数個の大きなピークをもつ。したがってパ
ルスエコー法では、受信側に適当なフィルタを持たせる
ことにより１回の送受信で複数の周波数に関する情報を
得ることが可能となる。In the fifth structure as described above, the first piezoelectric ceramic 101 and the second piezoelectric ceramic 102 are not the same in thickness, but the polarization directions are opposite to each other.
The internal electrodes 106 are used during polarization, and a normal drive signal is applied between the external electrodes 105. When the drive signal is applied to the external electrode 105, the band characteristics of the transmitted ultrasonic waves are not unimodal due to the difference in the thickness and the polarization direction of the first piezoelectric ceramic 101 and the second piezoelectric ceramic. , With several large peaks. Therefore, in the pulse echo method, by providing an appropriate filter on the receiving side, it becomes possible to obtain information on a plurality of frequencies by one transmission / reception.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記の
ような構成では送信時に必ずいくつかの周波数帯域にわ
たる超音波が送受信されてしまい、各周波数帯域が狭帯
域特性になる。また圧電セラミックの送信エネルギーの
分配により感度が低下する。あるいは周波数帯域が多峰
性であることによる整合条件の低下などの課題を有して
いた。However, in the above configuration, ultrasonic waves are transmitted and received over several frequency bands without fail during transmission, and each frequency band has a narrow band characteristic. In addition, the distribution of the transmission energy of the piezoelectric ceramic lowers the sensitivity. Alternatively, there is a problem that the matching condition is lowered due to the multimodal frequency band.
【０００６】本発明は上記従来技術の課題を解決するも
ので、複数の周波数帯域を有する超音波を送受信でき、
被検体から数種類の情報を得ることが可能な高感度の超
音波探触子を提供すること目的とする。The present invention is to solve the above-mentioned problems of the prior art, and is capable of transmitting and receiving ultrasonic waves having a plurality of frequency bands,
It is an object of the present invention to provide a highly sensitive ultrasonic probe capable of obtaining several types of information from a subject.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
に本発明は、圧電セラミックと、上記圧電セラミックの
背後のバッキング層と、上記圧電セラミック前面の１層
ないし数層の音響整合層と高分子圧電膜と音響レンズと
の構造を有する。また、上記圧電セラミックの超音波送
受信に関する音響整合層としての機能を高分子圧電膜が
担当させ構造の簡単化を図っている。In order to achieve this object, the present invention provides a piezoelectric ceramic, a backing layer behind the piezoelectric ceramic, and one or several acoustic matching layers on the front surface of the piezoelectric ceramic. It has a structure of a molecular piezoelectric film and an acoustic lens. Further, the function of the piezoelectric ceramic as an acoustic matching layer for ultrasonic wave transmission / reception is handled by the polymer piezoelectric film to simplify the structure.
【０００８】[0008]
【作用】本発明は上記構成によって、圧電セラミックの
帯域特性による超音波の送受信を行い、被検体からの情
報を得、例えば検査される領域を画像化し、診断を行う
ことができるとともに、高分子圧電膜の帯域特性による
超音波の送受信を行い、超音波探触子を取り替えること
無しに、被検体からの別種の情報を得ることができ、超
音波診断装置などの診断能力を向上させることができ
る。With the above-described structure, the present invention is capable of transmitting and receiving ultrasonic waves according to the band characteristics of the piezoelectric ceramic, obtaining information from the subject, for example, imaging the region to be inspected, and making a diagnosis. By transmitting and receiving ultrasonic waves according to the band characteristics of the piezoelectric film, it is possible to obtain different kinds of information from the subject without replacing the ultrasonic probe, and to improve the diagnostic ability of the ultrasonic diagnostic apparatus. it can.
【０００９】[0009]
（実施例１）以下、本発明の第１実施例について、図面
を参照しながら説明する。(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１は本発明の第１実施例における超音波
探触子の断面図である。図１において、１１は圧電セラ
ミック、１２は第１整合層、１３は第２整合層、１４は
高分子圧電膜、１５は音響レンズ、１６はバッキング
材、１７ないし２０は電極層である。FIG. 1 is a sectional view of an ultrasonic probe according to the first embodiment of the present invention. In FIG. 1, 11 is a piezoelectric ceramic, 12 is a first matching layer, 13 is a second matching layer, 14 is a polymer piezoelectric film, 15 is an acoustic lens, 16 is a backing material, and 17 to 20 are electrode layers.
【００１１】以上のように構成された超音波診探触子に
おいて、圧電セラミック１１の両端の電極層１７、およ
び１８に駆動信号を印可することによって、圧電セラミ
ック１１の帯域特性に関する超音波が発生し、整合層１
２および１３、高分子圧電膜１４、および音響レンズ１
５を介して被検体の中に放射される。被検体内で反射さ
れ音響レンズ１５表面に達した超音波は逆に、音響レン
ズ１５、高分子圧電膜１４、整合層１３および１２を介
して圧電セラミック１１に達し、圧電セラミック１１に
おいて受信電気信号となる。In the ultrasonic diagnostic probe constructed as described above, by applying a drive signal to the electrode layers 17 and 18 at both ends of the piezoelectric ceramic 11, ultrasonic waves relating to the band characteristic of the piezoelectric ceramic 11 are generated. And matching layer 1
2 and 13, polymer piezoelectric film 14, and acoustic lens 1
The light is radiated into the subject through 5 The ultrasonic waves reflected in the subject and reaching the surface of the acoustic lens 15 conversely reach the piezoelectric ceramic 11 via the acoustic lens 15, the polymer piezoelectric film 14, and the matching layers 13 and 12, and the received electric signal is received at the piezoelectric ceramic 11. Becomes
【００１２】以上のものとは別に、高分子圧電膜１４の
両端の電圧に駆動信号を印可することによって、高分子
圧電膜１４の帯域特性に関する超音波が発生し、音響レ
ンズ１５を介して被検体に放射され、被検体内で反射さ
れ、音響レンズ１５の表面に達した超音波は、音響レン
ズ１５を介して高分子圧電膜１４に達し、高分子圧電膜
１４において受信電気信号となる。In addition to the above, by applying a drive signal to the voltage across the polymer piezoelectric film 14, ultrasonic waves relating to the band characteristic of the polymer piezoelectric film 14 are generated and are transmitted via the acoustic lens 15. The ultrasonic waves radiated by the sample, reflected inside the sample, and reaching the surface of the acoustic lens 15 reach the polymeric piezoelectric film 14 via the acoustic lens 15 and become a received electric signal at the polymeric piezoelectric film 14.
【００１３】圧電セラミック１１による発生超音波の帯
域特性ならびに高分子圧電膜１４による発生超音波の帯
域特性はそれぞれの厚みによって決定されるため、用途
に応じてこれらの選択を行えばよい。また圧電セラミッ
ク１１と高分子圧電膜１４の駆動は別々に行ってもよ
く、また同時に行うことも可能であり、駆動時間を緻密
に制御することにより双方の帯域特性を合わせ持つ広帯
域な超音波信号を発生させることもできる。さらに、高
分子圧電膜の前後の音響インピーダンスおよび、圧電セ
ラミック１１と高分子圧電膜１４の帯域特性を適当に選
択することにより、圧電セラミック１１による送信、高
分子圧電膜１４による受信というような組み合わせによ
る超音波の送受信が可能である。Since the band characteristics of the ultrasonic waves generated by the piezoelectric ceramic 11 and the band characteristics of the ultrasonic waves generated by the polymer piezoelectric film 14 are determined by their respective thicknesses, these may be selected according to the application. Further, the piezoelectric ceramic 11 and the polymer piezoelectric film 14 may be driven separately or simultaneously, and a wideband ultrasonic signal having both band characteristics by precisely controlling the driving time. Can also be generated. Furthermore, by appropriately selecting the acoustic impedances before and after the polymer piezoelectric film and the band characteristics of the piezoelectric ceramic 11 and the polymer piezoelectric film 14, a combination such as transmission by the piezoelectric ceramic 11 and reception by the polymer piezoelectric film 14 can be achieved. It is possible to transmit and receive ultrasonic waves.
【００１４】以上のように本実施例によれば、超音波探
触子として、圧電セラミックと、上記圧電セラミックの
背後のバッキング層と、上記圧電セラミック前面の１層
ないし数層の音響整合層と高分子圧電膜と音響レンズと
を設けることにより、上記圧電セラミックによる超音波
の送受信の他に上記高分子圧電膜による超音波の送受信
を行い、上記圧電セラミックによる送受信とは別種の被
検体の情報を得ることをが可能となり、各種診断あるい
は検査等に対する情報量を簡便に増やすことができる。As described above, according to this embodiment, as the ultrasonic probe, the piezoelectric ceramic, the backing layer behind the piezoelectric ceramic, and one or several acoustic matching layers on the front surface of the piezoelectric ceramic are provided. By providing the piezoelectric polymer film and the acoustic lens, the ultrasonic wave is transmitted / received by the piezoelectric polymer film in addition to the ultrasonic wave transmitted / received by the piezoelectric ceramic, and the information of the subject different from that transmitted / received by the piezoelectric ceramic film is transmitted. Therefore, the amount of information for various diagnoses or tests can be easily increased.
【００１５】（実施例２）以下本発明の第２の実施例に
ついて図を参照しながら説明する。(Second Embodiment) A second embodiment of the present invention will be described below with reference to the drawings.
【００１６】図２は本発明の第２実施例における超音波
探触子の断面図である。図２において、１１は圧電セラ
ミック、１２は第１整合層、１３は第２整合層、１４は
高分子圧電膜、１５は音響レンズ、１６はバッキング
材、１７ないし２０は電極層、２１は絶縁層である。FIG. 2 is a sectional view of an ultrasonic probe according to the second embodiment of the present invention. In FIG. 2, 11 is a piezoelectric ceramic, 12 is a first matching layer, 13 is a second matching layer, 14 is a polymer piezoelectric film, 15 is an acoustic lens, 16 is a backing material, 17 to 20 are electrode layers, and 21 is an insulating layer. It is a layer.
【００１７】第２の実施例では音響レンズ１５を凹面型
として、音響レンズ１５前面に高分子圧電膜１４を設
け、電気的な安全性のために高分子圧電膜前面に絶縁層
２１を設けてある。以上のような構成とすることによっ
て、本実施例では、上記実施例１と同様な動作を行わせ
ることができ、各種診断あるいは検査等に対する情報量
を簡便に増やすことができる。In the second embodiment, the acoustic lens 15 is of a concave type, the polymeric piezoelectric film 14 is provided on the front surface of the acoustic lens 15, and the insulating layer 21 is provided on the polymeric piezoelectric film front surface for electrical safety. is there. With the above-described configuration, in this embodiment, the same operation as in the above-described first embodiment can be performed, and the amount of information for various diagnoses or tests can be easily increased.
【００１８】（実施例３）以下本発明の第３の実施例に
ついて図を参照しながら説明する。(Embodiment 3) A third embodiment of the present invention will be described below with reference to the drawings.
【００１９】図３は本発明の第３実施例における超音波
探触子の断面図である。図３において、１１は圧電セラ
ミック、１２は第１整合層、１４は高分子圧電膜、１５
は音響レンズ、１６はバッキング材、１７ないし２０は
電極層である。FIG. 3 is a sectional view of an ultrasonic probe according to the third embodiment of the present invention. In FIG. 3, 11 is a piezoelectric ceramic, 12 is a first matching layer, 14 is a polymer piezoelectric film, and 15 is a polymer piezoelectric film.
Is an acoustic lens, 16 is a backing material, and 17 to 20 are electrode layers.
【００２０】第３の実施例では高分子圧電膜１４が圧電
セラミック１１に関する音響整合層の機能をかねてお
り、全体としてより簡便な構造となっている。以上のよ
うな構成にすることによって、本実施例では、上記実施
例１あるいは２と同様な動作を行わせることができ、よ
り簡便な探触子構造で各種診断あるいは検査等に対する
情報量を簡便に増やすことができる。In the third embodiment, the polymeric piezoelectric film 14 also functions as an acoustic matching layer for the piezoelectric ceramic 11, and has a simpler structure as a whole. With the above-described configuration, in this embodiment, the same operation as in the above-described first or second embodiment can be performed, and a simpler probe structure can simplify the amount of information for various diagnoses or inspections. Can be increased to
【００２１】[0021]
【発明の効果】以上のように本発明は、超音波探触子と
して、圧電セラミックと、上記圧電セラミックの背後の
バッキング層と、上記圧電セラミック前面の１層ないし
数層の音響整合層と高分子圧電膜と音響レンズとを設け
ることにより、上記圧電セラミックによる超音波の送受
信の他に上記高分子圧電膜による超音波の送受信を行
い、上記圧電セラミックによる送受信とは別種の被検体
の情報を得ることをが可能となり、各種診断あるいは検
査等に対する情報量を簡便に増やすことができる。ま
た、上記圧電セラミックに関する音響整合層を上記高分
子圧電膜で構成することにより、より簡便な超音波探触
子構造で、各種診断あるいは検査等に対する情報量を簡
便に増やすことができる。As described above, according to the present invention, as an ultrasonic probe, a piezoelectric ceramic, a backing layer behind the piezoelectric ceramic, and one or several acoustic matching layers on the front surface of the piezoelectric ceramic are provided. By providing the molecular piezoelectric film and the acoustic lens, the ultrasonic wave is transmitted / received by the polymer piezoelectric film in addition to the ultrasonic wave transmitted / received by the piezoelectric ceramic, and the information of the subject different from that transmitted / received by the piezoelectric ceramic is transmitted. It is possible to obtain the information, and it is possible to easily increase the amount of information for various diagnoses or tests. Further, by configuring the acoustic matching layer for the piezoelectric ceramic with the polymer piezoelectric film, the amount of information for various diagnoses or inspections can be easily increased with a simpler ultrasonic probe structure.
【図１】本発明の第１の実施例における超音波探触子の
断面図FIG. 1 is a sectional view of an ultrasonic probe according to a first embodiment of the present invention.
【図２】本発明の第２の実施例における超音波探触子の
断面図FIG. 2 is a sectional view of an ultrasonic probe according to a second embodiment of the present invention.
【図３】本発明の第３の実施例における超音波探触子の
断面図FIG. 3 is a sectional view of an ultrasonic probe according to a third embodiment of the present invention.
【図４】従来方式による超音波探触子の断面図FIG. 4 is a cross-sectional view of a conventional ultrasonic probe.
１１ 圧電セラミック １２ 第１整合層 １３ 第２整合層 １４ 高分子圧電膜 １５ 音響レンズ １６ パッキング材 １７ 電極層 １８ 電極層 １９ 電極層 ２０ 電極層 ２１ 絶縁層 １０１ 圧電セラミック １０２ 圧電セラミック １０３ 音響整合層 １０４ バッキング材 １０５ 外部電極 １０６ 内部電極 11 Piezoelectric Ceramic 12 First Matching Layer 13 Second Matching Layer 14 Polymer Piezoelectric Film 15 Acoustic Lens 16 Packing Material 17 Electrode Layer 18 Electrode Layer 19 Electrode Layer 20 Electrode Layer 21 Insulating Layer 101 Piezoelectric Ceramic 102 Piezoelectric Ceramic 103 Acoustic Matching Layer 104 Backing material 105 External electrode 106 Internal electrode
───────────────────────────────────────────────────── フロントページの続き (72)発明者 足立 明久 神奈川県川崎市多摩区東三田３丁目10番１ 号 松下技研株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Akihisa Adachi 3-10-1 Higashisanda, Tama-ku, Kawasaki-shi, Kanagawa Matsushita Giken Co., Ltd.
Claims (3)
の背後のバッキング層と、上記圧電セラミック前面に、
１層ないし数層の音響整合層と、高分子圧電膜と、音響
レンズとを具備し、上記圧電セラミックによる超音波の
送受信の他に上記高分子圧電膜による超音波の送受信を
行い、上記圧電セラミックによる送受信とは別種の被検
体の情報を得ることを特徴とする超音波探触子。1. A piezoelectric ceramic, a backing layer behind the piezoelectric ceramic, and the piezoelectric ceramic front surface,
One or several acoustic matching layers, a polymer piezoelectric film, and an acoustic lens are provided, and in addition to the ultrasonic wave transmission / reception by the piezoelectric ceramic, ultrasonic wave transmission / reception by the polymer piezoelectric film is performed. An ultrasonic probe characterized by obtaining information of an object of a different type from that of transmission and reception by ceramics.
の背後のバッキング層と、上記圧電セラミック前面に、
１層ないし数層の音響整合層と、音響レンズと、音響レ
ンズの全面に設けられた高分子圧電膜を具備し、上記圧
電セラミックによる超音波の送受信の他に上記高分子圧
電膜による超音波の送受信を行い、上記圧電セラミック
による送受信とは別種の被検体の情報を得ることを特徴
とする超音波探触子。2. A piezoelectric ceramic, a backing layer behind the piezoelectric ceramic, and the piezoelectric ceramic front surface,
An acoustic matching layer of one or several layers, an acoustic lens, and a polymer piezoelectric film provided on the entire surface of the acoustic lens are provided, and in addition to the transmission and reception of ultrasonic waves by the piezoelectric ceramic, ultrasonic waves by the polymer piezoelectric film are provided. The ultrasonic probe is characterized in that information of a subject of a different type from that of transmission and reception by the above-mentioned piezoelectric ceramic is obtained.
の背後のバッキング層と、上記圧電セラミック前面の音
響整合層と高分子圧電膜と音響レンズとを具備し、上記
圧電セラミックの超音波送受信に関する音響整合層とし
ての機能を高分子圧電膜が担当するとともに、上記圧電
セラミックによる超音波の送受信の他に上記高分子圧電
膜による超音波の送受信を行い、上記圧電セラミックに
よる送受信とは別種の被検体の情報を得ることを特徴と
する超音波探触子。3. A piezoelectric ceramic, a backing layer behind the piezoelectric ceramic, an acoustic matching layer on the front surface of the piezoelectric ceramic, a polymeric piezoelectric film, and an acoustic lens, and acoustic matching relating to ultrasonic transmission / reception of the piezoelectric ceramic. The piezoelectric polymer film takes charge of the function as a layer, and the ultrasonic wave is transmitted and received by the polymer piezoelectric film in addition to the ultrasonic wave transmission and reception by the piezoelectric ceramic. An ultrasonic probe characterized by obtaining information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7647492A JPH05277102A (en) | 1992-03-31 | 1992-03-31 | Ultrasonic probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7647492A JPH05277102A (en) | 1992-03-31 | 1992-03-31 | Ultrasonic probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05277102A true JPH05277102A (en) | 1993-10-26 |
Family
ID=13606183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7647492A Pending JPH05277102A (en) | 1992-03-31 | 1992-03-31 | Ultrasonic probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05277102A (en) |
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|---|---|---|---|---|
| JP2001299755A (en) * | 2000-04-21 | 2001-10-30 | Hitachi Medical Corp | Ultrasonic probe and ultrasonographic instrument |
| WO2007013814A2 (en) * | 2005-07-26 | 2007-02-01 | Angelsen Bjoern A J | Dual frequency band ultrasound transducer arrays |
| WO2008010509A1 (en) * | 2006-07-20 | 2008-01-24 | Konica Minolta Medical & Graphic, Inc. | Ultrasound probe of multichannel array type and method for fabricating ultrasound probe of multichannel array type |
| US8182428B2 (en) | 2005-07-26 | 2012-05-22 | Surf Technology As | Dual frequency band ultrasound transducer arrays |
| JP5083210B2 (en) * | 2006-06-13 | 2012-11-28 | コニカミノルタエムジー株式会社 | Array-type ultrasonic probe and manufacturing method thereof |
| WO2013118768A1 (en) * | 2012-02-07 | 2013-08-15 | 富士フイルム株式会社 | Ultrasonic probe and manufacturing method thereof |
| WO2014077061A1 (en) * | 2012-11-14 | 2014-05-22 | 富士フイルム株式会社 | Ultrasonic vibrator and manufacturing method therefor |
| JP2016052531A (en) * | 2012-02-07 | 2016-04-14 | 富士フイルム株式会社 | Ultrasonic probe |
-
1992
- 1992-03-31 JP JP7647492A patent/JPH05277102A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4632478B2 (en) * | 2000-04-21 | 2011-02-16 | 株式会社日立メディコ | Ultrasonic probe and ultrasonic diagnostic apparatus |
| JP2001299755A (en) * | 2000-04-21 | 2001-10-30 | Hitachi Medical Corp | Ultrasonic probe and ultrasonographic instrument |
| US8182428B2 (en) | 2005-07-26 | 2012-05-22 | Surf Technology As | Dual frequency band ultrasound transducer arrays |
| WO2007013814A2 (en) * | 2005-07-26 | 2007-02-01 | Angelsen Bjoern A J | Dual frequency band ultrasound transducer arrays |
| JP2009503990A (en) * | 2005-07-26 | 2009-01-29 | アー．ヤー． アンゲルセン、ビョルン | Dual frequency ultrasonic transducer array |
| EA013166B1 (en) * | 2005-07-26 | 2010-02-26 | Бьорн А.Й. Ангельсен | Dual frequency band ultrasound transducer arrays |
| US7727156B2 (en) | 2005-07-26 | 2010-06-01 | Angelsen Bjoern A J | Dual frequency band ultrasound transducer arrays |
| WO2007013814A3 (en) * | 2005-07-26 | 2007-07-26 | Bjoern A J Angelsen | Dual frequency band ultrasound transducer arrays |
| JP5083210B2 (en) * | 2006-06-13 | 2012-11-28 | コニカミノルタエムジー株式会社 | Array-type ultrasonic probe and manufacturing method thereof |
| WO2008010509A1 (en) * | 2006-07-20 | 2008-01-24 | Konica Minolta Medical & Graphic, Inc. | Ultrasound probe of multichannel array type and method for fabricating ultrasound probe of multichannel array type |
| WO2013118768A1 (en) * | 2012-02-07 | 2013-08-15 | 富士フイルム株式会社 | Ultrasonic probe and manufacturing method thereof |
| JP2013176537A (en) * | 2012-02-07 | 2013-09-09 | Fujifilm Corp | Ultrasonic probe and method for producing the same |
| CN104105447A (en) * | 2012-02-07 | 2014-10-15 | 富士胶片株式会社 | Ultrasonic probe and manufacturing method thereof |
| JP2016052531A (en) * | 2012-02-07 | 2016-04-14 | 富士フイルム株式会社 | Ultrasonic probe |
| US9733220B2 (en) | 2012-02-07 | 2017-08-15 | Fujifilm Corporation | Ultrasound probe and method of producing the same |
| WO2014077061A1 (en) * | 2012-11-14 | 2014-05-22 | 富士フイルム株式会社 | Ultrasonic vibrator and manufacturing method therefor |
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