JPH08615A - Acoustic lens for probe of ultrasonic diagnostic device - Google Patents
Acoustic lens for probe of ultrasonic diagnostic deviceInfo
- Publication number
- JPH08615A JPH08615A JP16292694A JP16292694A JPH08615A JP H08615 A JPH08615 A JP H08615A JP 16292694 A JP16292694 A JP 16292694A JP 16292694 A JP16292694 A JP 16292694A JP H08615 A JPH08615 A JP H08615A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- acoustic lens
- butadiene rubber
- ultrasonic diagnostic
- human body
- 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)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、超音波診断装置用接触
子の音響レンズ及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an acoustic lens for a contact for ultrasonic diagnostic equipment and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】医用超音波診断装置の接触子において
は、超音波ビームを集束するため人体と接触する部分
に、ゴム等の高分子材料をべースにして作られた音響レ
ンズが設けられている。ここに用いられるレンズ材料と
しては、その音速が人体のそれより十分小さくて、減衰
が少なく、又、音響インピーダンスが人体の皮膚の値に
近いものが望まれる。レンズ材が、音速が人体のそれよ
り十分小さければ、レンズ形状を凸状となすことがで
き、診断を行う際に滑りが良くなり、安全に行えるし、
また、減衰が少なくなれば、感度良く超音波の送受信が
行え、さらに、音響インピーダンスが人体の皮膚の値に
近いものであれば、反射が小さくなり、換言すれば、透
過率が大きくなるので、同様に超音波の送受信感度が良
くなるからである。2. Description of the Related Art In a contactor of a medical ultrasonic diagnostic apparatus, an acoustic lens made of a polymer material such as rubber is provided at a portion contacting a human body for focusing an ultrasonic beam. ing. It is desired that the lens material used here has a sound velocity sufficiently smaller than that of the human body, little attenuation, and an acoustic impedance close to that of the skin of the human body. If the speed of sound of the lens material is sufficiently lower than that of the human body, the lens shape can be made convex, slipping is improved during diagnosis, and it can be done safely.
Also, if the attenuation is small, it is possible to transmit and receive ultrasonic waves with good sensitivity, and further, if the acoustic impedance is close to the value of the skin of the human body, the reflection will be small, in other words, the transmittance will be large, This is also because the transmission / reception sensitivity of ultrasonic waves is improved.
【０００３】レンズ材料としては、各種のゴム材が提案
され、シリコンゴム、フッ素シリコンゴム、ポリウレタ
ンゴム、エピクロルヒドリンゴム等のホモポリマーによ
り音響レンズが構成され、又、エチレンとプロピレンと
を共重合させてなるエチレンープロピレン共重合体ゴム
等の共重合体ゴムにより音響レンズが構成されることも
ある。しかるに、従来例のゴム材よりなる診断装置の接
触子の音響レンズは、その音響インピーダンスが人体に
近似していても、他方では、その音速が人体のそれより
大きく、減衰が多かったり、逆に、減衰少なくても、音
響インピーダンスが大きすぎたりして、その特性を充足
し得るようなものはなかなか得ることができなかった。As the lens material, various rubber materials have been proposed, and an acoustic lens is composed of a homopolymer such as silicon rubber, fluorosilicone rubber, polyurethane rubber, and epichlorohydrin rubber, and ethylene and propylene are copolymerized. The acoustic lens may be made of a copolymer rubber such as ethylene-propylene copolymer rubber. However, the acoustic lens of the contactor of the diagnostic device made of the rubber material of the conventional example, even if its acoustic impedance is close to that of the human body, on the other hand, its sound velocity is larger than that of the human body, and there is more attenuation, However, even if the attenuation was small, it was difficult to obtain a thing that could satisfy the characteristics because the acoustic impedance was too large.
【０００４】[0004]
【発明が解決しようとする課題】本発明はかかる従来技
術の有する欠点を解消することのできる技術を提供する
ことを目的としたものである。SUMMARY OF THE INVENTION It is an object of the present invention to provide a technique capable of solving the drawbacks of the prior art.
【０００５】[0005]
【課題を解決するための手段】本発明は、シリコン系ゴ
ムとブタジエン系ゴムとの混合物からなることを特徴と
する超音波診断装置用接触子の音響レンズ、並びに、シ
リコン系ゴムとブタジエン系ゴムとを混合し加硫硬化さ
せることを特徴とする超音波診断装置用接触子の音響レ
ンズの製造方法に係るものである。DISCLOSURE OF THE INVENTION The present invention comprises an acoustic lens for a contact for an ultrasonic diagnostic apparatus, characterized by comprising a mixture of silicone rubber and butadiene rubber, and silicone rubber and butadiene rubber. The present invention relates to a method for manufacturing an acoustic lens of a contact for an ultrasonic diagnostic apparatus, which comprises mixing and curing and curing.
【０００６】本発明に使用されるシリコン系ゴムとして
は、シリコンゴム、フッ素シリコンゴム等が挙げられ
る。就中、レンズ材の特性上、シリコンゴムを使用する
ことが好ましい。シリコンゴムとは、Ｓｉ−Ｏ結合から
なる分子骨格を有し、そのＳｉ原子に複数の有機基が主
結合したオルガノポリシロキサンをいい、通常は、その
主成分はメチルポリシロキサンで、全体の有機基のうち
９０％以上はメチル基である。メチル基に代えて水素原
子、フェニル基、ビニル基、アリル基等を導入したもの
も使用することができる。当該シリコンゴムは、例え
ば、高重合度のオルガノポリシロキサンに過酸化ベンゾ
イルなどの硬化剤（加硫剤）を混練し、加熱加硫し硬化
させることにより得ることができる。必要に応じてシリ
カ、ナイロン粉末等の有機又は無機充填剤、硫黄、酸化
亜鉛等の加硫助剤等を添加してもよい。Examples of the silicone rubber used in the present invention include silicone rubber and fluorosilicone rubber. Above all, it is preferable to use silicone rubber due to the characteristics of the lens material. Silicon rubber refers to an organopolysiloxane having a molecular skeleton composed of Si-O bonds, and a plurality of organic groups are mainly bonded to the Si atom. Usually, the main component is methyl polysiloxane, 90% or more of the groups are methyl groups. A substance in which a hydrogen atom, a phenyl group, a vinyl group, an allyl group or the like is introduced instead of the methyl group can also be used. The silicone rubber can be obtained, for example, by kneading a high-polymerization degree organopolysiloxane with a curing agent (vulcanizing agent) such as benzoyl peroxide, followed by heat vulcanization and curing. If necessary, an organic or inorganic filler such as silica or nylon powder, a vulcanization aid such as sulfur or zinc oxide, etc. may be added.
【０００７】本発明に使用されるブタジエン系ゴムとし
ては、ブタジエン単独またはブタジエンを主体としこれ
に少量のスチロールまたはアクリロニトリルが共重合し
た共重合ゴム等が挙げられる。就中、レンズ材の特性
上、ブタジエンゴムを使用することが好ましい。ブタジ
エンゴムとは、共役二重結合を有するブタジエンの重合
により得られる合成ゴムをいう。ブタジエンゴムは、共
役二重結合を有するブタジエン単独が１，４又は１．２
重合することにより得ることができる。ブタジエンゴム
は、硫黄等により加硫させたものが使用できる。Examples of the butadiene-based rubber used in the present invention include butadiene alone or a copolymer rubber mainly composed of butadiene and copolymerized with a small amount of styrene or acrylonitrile. Above all, it is preferable to use butadiene rubber due to the characteristics of the lens material. The butadiene rubber refers to a synthetic rubber obtained by polymerizing butadiene having a conjugated double bond. In butadiene rubber, butadiene alone having a conjugated double bond is 1, 4 or 1.2.
It can be obtained by polymerization. The butadiene rubber may be vulcanized with sulfur or the like.
【０００８】本発明の超音波診断装置用接触子の音響レ
ンズは、シリコン系ゴムとブタジエン系ゴムとを混合し
加硫硬化させることにより得ることができる。例えば、
シリコンゴムとブタジエンゴムとを適宜割合で混練ロー
ルで混合し、過酸化ベンゾイルなどの加硫剤を添加し、
加熱加硫し架橋（硬化）させることにより得ることがで
きる。その際に、加硫助剤として、酸化亜鉛を添加する
ことが好ましい。酸化亜鉛は、レンズ特性を落とさず
に、加硫促進を促し、加硫時間を短縮できる。他に、着
色剤や音響レンズの特性を損なわない範囲内で他の添加
剤を添加してもよい。シリコン系ゴムとブタジエン系ゴ
ムとの混合割合は、その音響インピーダンスが人体に近
似しているとともに、その音速が人体より小さく、減衰
が少ないものを得るには、通常、１：１が好ましいが、
当該混合割合は適宜変更可能である。The acoustic lens of the contact for ultrasonic diagnostic equipment of the present invention can be obtained by mixing silicone rubber and butadiene rubber and vulcanizing and curing. For example,
Silicon rubber and butadiene rubber are mixed in an appropriate ratio by a kneading roll, and a vulcanizing agent such as benzoyl peroxide is added,
It can be obtained by heat vulcanization and crosslinking (curing). At that time, zinc oxide is preferably added as a vulcanization aid. Zinc oxide can accelerate the vulcanization and reduce the vulcanization time without deteriorating the lens characteristics. In addition, other additives may be added within a range that does not impair the characteristics of the colorant and the acoustic lens. The mixing ratio of the silicone-based rubber and the butadiene-based rubber is preferably 1: 1 in order to obtain a material whose acoustic impedance is similar to that of the human body, whose sound velocity is lower than that of the human body, and has less attenuation.
The mixing ratio can be changed appropriately.
【０００９】超音波診断装置は、超音波を利用して人体
の構造を知る装置で、当該装置には、一般に、圧電振動
子から発振される短いパルス状の超音波を対象に当て、
反射して戻ってくるエコーを検出、その返ってくる時間
と音速から対象までの距離を測るＡモード法と、発振源
のプローブ（接触子）を移動し超音波ビームで対象を走
査し、移動に応じた位置の情報をブラウン管に表示して
生体の断層像を得るＢモード法とがあるが、本発明の音
響レンズはこれら超音波診断装置用接触子の超音波ビー
ムを集束するレンズとして使用される。An ultrasonic diagnostic apparatus is an apparatus for knowing the structure of a human body by utilizing ultrasonic waves. In general, the apparatus is applied with short pulse ultrasonic waves oscillated from a piezoelectric vibrator.
The A-mode method that detects the echo that is reflected and returned, and measures the distance from the returned time and sound velocity to the target, and the probe (contactor) of the oscillation source is moved to scan the target with an ultrasonic beam and move There is a B-mode method for displaying a position information according to the position on a cathode ray tube to obtain a tomographic image of a living body. The acoustic lens of the present invention is used as a lens for focusing the ultrasonic beam of the contact for ultrasonic diagnostic equipment. To be done.
【００１０】[0010]
【実施例】次に、本発明の実施例を示す。EXAMPLES Next, examples of the present invention will be shown.
【００１１】尚、レンズ特性の測定は、次の方法に従い
行った。 （１）密度（ｋｇ／ｍ3）：室温での試料の外径寸法及
び重量から測定。測定温度は人体の体温と同じ程度の３
７℃。The lens characteristics were measured by the following method. (1) Density (kg / m 3 ): Measured from the outer diameter dimension and weight of the sample at room temperature. The measured temperature is about the same as the human body temperature.
7 ° C.
【００１２】（２）音速：次の方法に準拠して行った。
水中でノギスにシングル・プローブ１対をセットし、適
当な距離を開け、送受信の時間差ｔ1を測定し、シング
ル・プローブの距離をｄ1だけ縮め、送受信間の時間差
ｔ2を測定する。このときの水温での音速Ｖwは、Ｖw＝
ｄ1／（ｔ1−ｔ2） ［単位はｍ／Ｓ］で表され、ま
た、この時点のシングル・プローブの距離ｄ2は、ｄ2＝
Ｖwｘｔ2 ［単位はｍｍ］で表される。次いで、シング
ル・プローブの距離をｄ2に保持したまま、それらの間
に厚さｄ3の試料片を入れ、送受信の時間差ｔ3を測定
し、試料片の音速Ｖtを次式１から求める。(2) Sound velocity: The sound velocity was measured according to the following method.
A pair of single probes is set on a caliper in water, an appropriate distance is opened, a transmission / reception time difference t 1 is measured, a single probe distance is reduced by d 1 , and a transmission / reception time difference t 2 is measured. The sound velocity V w at the water temperature at this time is V w =
d 1 / (t 1 −t 2 ) [unit is m / S], and the distance d 2 of the single probe at this time is d 2 =
It is represented by V w xt 2 [unit is mm]. Next, while maintaining the distance of the single probe at d 2 , a sample piece having a thickness of d 3 is inserted between them, the time difference t 3 between transmission and reception is measured, and the sound velocity V t of the sample piece is obtained from the following equation 1. .
【００１３】[0013]
【式１】 温度（水温）を変化させて温度ー音速特性をとる。(Equation 1) Change the temperature (water temperature) to obtain temperature-sound velocity characteristics.
【００１４】（３）音響インピーダンス（Ｍｒａｙ
ｌ）：上記で求められた密度、音速を基にして算出す
る。(3) Acoustic impedance (Mray)
l): Calculated based on the density and the speed of sound obtained above.
【００１５】（４）減衰（ｄＢ／ｍｍｇ１０ＭＨｚ）：
試料片の有無の周波数特性から算出。(4) Attenuation (dB / mmg 10 MHz):
Calculated from the frequency characteristics with and without sample pieces.
【００１６】実施例１ ブタジエンゴム１００重量部とシリコンゴム１００重量
部（混合比率１：１）とを混練ロールで混合し、加硫剤
２．５重量部を添加し、加熱加硫し架橋（硬化）させ、
試料を得た。当該試料について、前記測定方法に従い、
密度、音速、音響インピーダンス、及び減衰を測定し
た。結果は、密度：１．０２ｋｇ／ｍ3、音速：１．１
７ｋｍ／ｓｅｃ（１１７０ｍ／ｓｅｃ）、音響インピー
ダンス１．１９Ｍｒａｙｌ、減衰０，２ｄＢ／ＭＨｚ・
ｍｍであった。この結果は、音響インピーダンスが人体
のそれと近似しているとともに、その音速が人体のそれ
よりも小さく．減衰が少ないという理想に近い接触子の
レンズ材料が得られることが判る。Example 1 100 parts by weight of butadiene rubber and 100 parts by weight of silicone rubber (mixing ratio 1: 1) were mixed by a kneading roll, 2.5 parts by weight of a vulcanizing agent was added, and heat-vulcanized to crosslink ( Cure)
A sample was obtained. For the sample, according to the measurement method,
Density, speed of sound, acoustic impedance, and attenuation were measured. The results are: density: 1.02 kg / m 3 , sound velocity: 1.1
7 km / sec (1170 m / sec), acoustic impedance 1.19 Mrayl, attenuation 0.2 dB / MHz
mm. This result shows that the acoustic impedance is similar to that of the human body, and that the speed of sound is smaller than that of the human body. It can be seen that a contact lens material having a nearly ideal attenuation can be obtained.
【００１７】実施例２ 実施例１において、加硫助剤として酸化亜鉛４重量部を
添加した以外は、実施例１と同様にして、試料を得、当
該試料について、前記測定方法に従い、密度、音速、音
響インピーダンス、及び減衰を測定したところ、実施例
１と同様の結果を得た。Example 2 A sample was obtained in the same manner as in Example 1 except that 4 parts by weight of zinc oxide was added as a vulcanization aid, and the density of the sample was measured according to the above measuring method. When the sound velocity, acoustic impedance, and attenuation were measured, the same results as in Example 1 were obtained.
【００１８】比較例１ ブタジエンゴム単体を使用し、充填剤を添加しない試料
について、同様にして前記測定方法に従い、密度、音
速、音響インピーダンス、及び減衰係数を測定したとこ
ろ、密度：０．９５ｋｇ／ｍ3、音速：１．５０ｋｍ／
ｓｅｃ（１５００ｍ／ｓｅｃ）、音響インピーダンス
１．４２Ｍｒａｙｌ、減衰係数ー１．７８ｄＢ／ｍｍｇ
１０ＭＨｚであり、減衰は少ないが、所定の焦点距離の
音響レンズに加工する場合、曲率が小さくなるため、レ
ンズ厚みが大きくなり、結局の所、減衰が大きくなって
しまう。Comparative Example 1 The density, sound velocity, acoustic impedance, and damping coefficient of a sample using butadiene rubber alone and no filler added were measured in the same manner as described above. Density: 0.95 kg / m 3 , sound velocity: 1.50 km /
sec (1500 m / sec), acoustic impedance 1.42 Mrayl, attenuation coefficient-1.78 dB / mmg
Although it is 10 MHz and the attenuation is small, when processing into an acoustic lens having a predetermined focal length, the curvature becomes small, the lens thickness becomes large, and the attenuation eventually becomes large.
【００１９】比較例２ シリコンゴム単体を使用し、充填剤を添加しない試料に
ついて、同様にして前記測定方法に従い、密度、音速、
音響インピーダンス、及び減衰係数を測定したところ、
密度：０．９５ｋｇ／ｍ3、音速：１．００ｋｍ／ｓｅ
ｃ（１０００ｍ／ｓｅｃ）、音響インピーダンス１．４
２Ｍｒａｙｌ、減衰係数ー１．７８ｄＢ／ｍｍｇ１０Ｍ
Ｈｚであり、その音速は小さいが、減衰が大きいことが
判る。Comparative Example 2 For a sample using silicon rubber alone and no filler added, density, sound velocity,
When the acoustic impedance and the attenuation coefficient were measured,
Density: 0.95 kg / m 3 , sound velocity: 1.00 km / se
c (1000 m / sec), acoustic impedance 1.4
2Mrayl, attenuation coefficient-1.78dB / mmg10M
It is found that the sound velocity is Hz and the sound velocity is low, but the attenuation is high.
【００２０】図１に、本発明によるシリコン系ゴムとブ
タジエン系ゴムとを混合し加硫硬化させてなる音響レン
ズについて、他材質によるものと対比させて、音速と減
衰との関係をプロットしたグラフを示す。図１に示すよ
うに、本発明による音響レンズは、その音速が人体のそ
れよりも小さく．減衰が少ないという理想に近いもので
あることが判る。FIG. 1 is a graph plotting the relationship between the sound velocity and the attenuation of an acoustic lens obtained by mixing and vulcanizing and curing a silicone rubber and a butadiene rubber according to the present invention, in comparison with those of other materials. Indicates. As shown in FIG. 1, the acoustic lens according to the present invention has a sound velocity lower than that of the human body. It can be seen that this is close to the ideal of low attenuation.
【００２１】[0021]
【発明の効果】以上本発明によれば、ブタジエンゴムと
シリコンゴムとを混合し、架橋（硬化）させることによ
り、その音響インピーダンスが人体に近似しているとと
もに、その音速が人体のそれより十分小さく、減衰が少
ないという理想に近い接触子の音響レンズが得られた。As described above, according to the present invention, butadiene rubber and silicone rubber are mixed and crosslinked (cured) so that the acoustic impedance thereof is close to that of the human body and the sound velocity thereof is sufficiently higher than that of the human body. A contact lens acoustic lens that is small and has little attenuation is obtained.
【図１】本発明による音響レンズと他材質によるものと
を対比させて、音速と減衰との関係をプロットしたグラ
フ。FIG. 1 is a graph in which the relationship between sound velocity and attenuation is plotted by comparing the acoustic lens according to the present invention with one made of another material.
Ａ・・・本発明例 A: Example of the present invention
Claims (5)
合物からなることを特徴とする超音波診断装置用接触子
の音響レンズ。1. An acoustic lens for a contact for an ultrasonic diagnostic apparatus, which is made of a mixture of silicon rubber and butadiene rubber.
率が１：１の混合物からなることを特徴とする、請求項
１に記載の超音波診断装置用接触子の音響レンズ。2. The acoustic lens of the contact for an ultrasonic diagnostic apparatus according to claim 1, wherein the mixture is composed of a mixture of silicon rubber and butadiene rubber in a ratio of 1: 1.
エン系ゴムがブタジエンゴムであることを特徴とする、
請求項１または２に記載の超音波診断装置用接触子の音
響レンズ。3. The silicone rubber is silicone rubber, and the butadiene rubber is butadiene rubber.
An acoustic lens of the contact for ultrasonic diagnostic equipment according to claim 1 or 2.
合し加硫硬化させることを特徴とする超音波診断装置用
接触子の音響レンズの製造方法。4. A method of manufacturing an acoustic lens for a contact for an ultrasonic diagnostic apparatus, which comprises mixing a silicone rubber and a butadiene rubber and vulcanizing and curing them.
エン系ゴムとの混合物中に加硫助剤として酸化亜鉛を添
加することを特徴とする、請求項４に記載の超音波診断
装置用接触子の音響レンズの製造方法。5. The contact for ultrasonic diagnostic equipment according to claim 4, wherein zinc oxide is added as a vulcanization aid to a mixture of a silicone rubber and a butadiene rubber during vulcanization and curing. Child acoustic lens manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16292694A JPH08615A (en) | 1994-06-22 | 1994-06-22 | Acoustic lens for probe of ultrasonic diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16292694A JPH08615A (en) | 1994-06-22 | 1994-06-22 | Acoustic lens for probe of ultrasonic diagnostic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08615A true JPH08615A (en) | 1996-01-09 |
Family
ID=15763867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16292694A Pending JPH08615A (en) | 1994-06-22 | 1994-06-22 | Acoustic lens for probe of ultrasonic diagnostic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08615A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000007913A1 (en) | 1998-08-03 | 2000-02-17 | Kabushiki Kaisha Kajitsu Hihakai Hinshitsu Kenkyujo | Transfer and sorting conveyor |
| JP2005125071A (en) * | 2003-09-29 | 2005-05-19 | Toshiba Corp | Acoustic lens composition, ultrasonic probe and ultrasonic diagnostic apparatus |
| JP2009189692A (en) * | 2008-02-18 | 2009-08-27 | Toshiba Corp | Two-dimensional array ultrasonic probe |
| US7963174B2 (en) | 2007-04-05 | 2011-06-21 | Asashi Organic Chemicals Industry Co., Ltd. | Ultrasonic flowmeter having a rubber transmitting body |
| JP2011519046A (en) * | 2008-05-01 | 2011-06-30 | エアバス オペレーションズ リミティド | Ultrasonic inspection method and ultrasonic inspection apparatus |
| JP2017205416A (en) * | 2016-05-20 | 2017-11-24 | コニカミノルタ株式会社 | Acoustic lens, method for the same, supersonic probe and supersonic imaging device |
| EP3522565A4 (en) * | 2016-09-27 | 2019-12-04 | FUJIFILM Corporation | Resin material for acoustic wave probe, acoustic lens, acoustic wave probe, acoustic wave measurement device, ultrasonic diagnostic device, photoacoustic measurement device, and ultrasonic endoscope |
| US10716540B2 (en) | 2016-03-29 | 2020-07-21 | Fujifilm Corporation | Resin composition for acoustic wave probe, and acoustic lens using the same, acoustic wave probe, acoustic wave measurement apparatus, ultrasound diagnostic apparatus, photoacoustic wave measurement apparatus, and ultrasound endoscope |
| CN114605829A (en) * | 2022-02-14 | 2022-06-10 | 江苏大学 | Ultrasonic dry coupling material, preparation method thereof and performance parameter measuring method |
-
1994
- 1994-06-22 JP JP16292694A patent/JPH08615A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000007913A1 (en) | 1998-08-03 | 2000-02-17 | Kabushiki Kaisha Kajitsu Hihakai Hinshitsu Kenkyujo | Transfer and sorting conveyor |
| JP2005125071A (en) * | 2003-09-29 | 2005-05-19 | Toshiba Corp | Acoustic lens composition, ultrasonic probe and ultrasonic diagnostic apparatus |
| US8292818B2 (en) | 2003-09-29 | 2012-10-23 | Kabushiki Kaisha Toshiba | Acoustic lens composition, ultrasonic probe, and ultrasonic diagnostic apparatus |
| US7963174B2 (en) | 2007-04-05 | 2011-06-21 | Asashi Organic Chemicals Industry Co., Ltd. | Ultrasonic flowmeter having a rubber transmitting body |
| JP2009189692A (en) * | 2008-02-18 | 2009-08-27 | Toshiba Corp | Two-dimensional array ultrasonic probe |
| JP2011519046A (en) * | 2008-05-01 | 2011-06-30 | エアバス オペレーションズ リミティド | Ultrasonic inspection method and ultrasonic inspection apparatus |
| US10716540B2 (en) | 2016-03-29 | 2020-07-21 | Fujifilm Corporation | Resin composition for acoustic wave probe, and acoustic lens using the same, acoustic wave probe, acoustic wave measurement apparatus, ultrasound diagnostic apparatus, photoacoustic wave measurement apparatus, and ultrasound endoscope |
| JP2017205416A (en) * | 2016-05-20 | 2017-11-24 | コニカミノルタ株式会社 | Acoustic lens, method for the same, supersonic probe and supersonic imaging device |
| US10026392B2 (en) | 2016-05-20 | 2018-07-17 | Konica Minolta, Inc. | Acoustic lens, method for producing the same, ultrasonic probe, and ultrasonic imaging device |
| EP3522565A4 (en) * | 2016-09-27 | 2019-12-04 | FUJIFILM Corporation | Resin material for acoustic wave probe, acoustic lens, acoustic wave probe, acoustic wave measurement device, ultrasonic diagnostic device, photoacoustic measurement device, and ultrasonic endoscope |
| US11072707B2 (en) | 2016-09-27 | 2021-07-27 | Fujifilm Corporation | Resin material for acoustic wave probe, acoustic lens, acoustic wave probe, acoustic wave measurement apparatus, ultrasonic diagnostic apparatus, photoacoustic wave measurement apparatus, and ultrasound endoscope |
| CN114605829A (en) * | 2022-02-14 | 2022-06-10 | 江苏大学 | Ultrasonic dry coupling material, preparation method thereof and performance parameter measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4256309B2 (en) | Ultrasonic probe and ultrasonic diagnostic apparatus | |
| US4901729A (en) | Ultrasonic probe having ultrasonic propagation medium | |
| US20210361259A1 (en) | Semi-rigid acoustic coupling articles for ultrasound diagnostic and treatment applications | |
| JPH08615A (en) | Acoustic lens for probe of ultrasonic diagnostic device | |
| EP3389878B1 (en) | An acoustic lens for an ultrasound array | |
| US6418084B2 (en) | Ultrasonic probe and method of manufacturing the same | |
| EP3448261B1 (en) | Ultrasound device contacting | |
| EP3924417A1 (en) | Hydrogel composition for a semi-rigid acoustic coupling medium in ultrasound imaging | |
| US20190133553A1 (en) | Ultrasound device contacting | |
| JP2002095081A (en) | Ultrasonic probe and its manufacturing method and acoustic lens and its manufacturing method | |
| Kavitha et al. | Characterization of tissue mimicking phantoms for acoustic radiation force impulse imaging | |
| JPS62233149A (en) | Ultrasonic probe | |
| JP3268907B2 (en) | Ultrasonic probe | |
| Cho et al. | Effect of alumina composition and surface integrity in alumina/epoxy composites on the ultrasonic attenuation properties | |
| JPH04285542A (en) | Ultrasonic phantom | |
| Cannatà et al. | Dielectric, Mechanical and Acoustic Characterization of Multi-Modal Tissue-Mimicking Breast Phantoms | |
| US10729405B2 (en) | Composition for acoustic wave probe, silicone resin for acoustic wave probe using same, acoustic wave probe, ultrasonic probe, acoustic wave measurement apparatus, ultrasonic diagnostic apparatus, photoacoustic wave measurement apparatus and ultrasound endoscope | |
| JPH0460651B2 (en) | ||
| JPH0140488Y2 (en) | ||
| CN117050529A (en) | Composition for acoustic lens, raw material and preparation method thereof, acoustic lens and ultrasonic probe | |
| JPS61164544A (en) | Acoustic lens for ultrasonic diagnostic apparatus | |
| Yokoyama et al. | 3P2-17 Development of automated abdominal sound speed tomographic imaging system | |
| JP2023105417A (en) | Silicone resin for acoustic lens, ultrasonic probe and manufacturing method of silicone resin for acoustic lens | |
| JP2552968B2 (en) | Underwater ultrasonic absorber | |
| JPH0790119A (en) | Resin composition for material to reduce reflection of sound wave in water, and material to reduce reflection of sound wave in water |