JPS58155844A - Ultrasonic probe - Google Patents
Ultrasonic probeInfo
- Publication number
- JPS58155844A JPS58155844A JP57038467A JP3846782A JPS58155844A JP S58155844 A JPS58155844 A JP S58155844A JP 57038467 A JP57038467 A JP 57038467A JP 3846782 A JP3846782 A JP 3846782A JP S58155844 A JPS58155844 A JP S58155844A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- transducer array
- ultrasonic probe
- probe
- ultrasonic transducer
- 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
- Ultra Sonic Daignosis Equipment (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、超音波診断装置に用いられている超音波探触
子、特にリニア型電子走査方式の超音波探触子に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic probe used in an ultrasonic diagnostic apparatus, and particularly to a linear electronic scanning type ultrasonic probe.
通常、被検体の診断を行なう場合、感度・分解能を考慮
して駆動周波数の異なった超音波探触子を交換して使用
することが多い。一般に駆動周波数の高い超音波探触子
を用いる場合、診断上の分解能は向上するが、生体組織
中での減衰が、低い駆動周波数の超音波探触子に比べて
大きく、深部における感度が低下する。一方低い駆動周
波数の超音波探触子の場合は、深部における感度は良好
であるが、診断上分解能が低下するという問題点がある
。このため、一般に診断に際して、比較的近距離を分解
能よく観測する場合は、高い駆動周波数の探触子を使用
し、一方被検体の深部を感度よく観測する場合は、低い
駆動周波数の超音波探触子をそれぞれ交換しながら診断
することがなされていた。そのため、それぞれの超音波
探触子は、観測場所に応じて超音波診断装置本体かられ
ざわざ取りはずして交換を行なわなければならず、診断
上非常に不都合であった。さらに、このように異なった
駆動周波数の超音波探触子で得られた被検体の断層像を
、同一画面上に実時間にして同時に写し出すことが望ま
れている。Normally, when diagnosing a subject, ultrasonic probes with different drive frequencies are often used interchangeably in consideration of sensitivity and resolution. Generally, when using an ultrasound probe with a high drive frequency, diagnostic resolution improves, but the attenuation in living tissue is greater than that with a low drive frequency, resulting in lower sensitivity in deep areas. do. On the other hand, in the case of an ultrasonic probe with a low driving frequency, the sensitivity in deep parts is good, but there is a problem that the diagnostic resolution is reduced. For this reason, in general, when making a diagnosis, an ultrasonic probe with a high drive frequency is used to observe a relatively short distance with good resolution, while an ultrasonic probe with a low drive frequency is used to observe the deep part of the object with high sensitivity. Diagnosis was performed by replacing each probe. Therefore, each ultrasonic probe must be removed from the main body of the ultrasonic diagnostic apparatus and replaced depending on the observation location, which is very inconvenient for diagnosis. Furthermore, it is desired to simultaneously display tomographic images of a subject obtained by ultrasound probes having different driving frequencies on the same screen in real time.
本発明は以上の不都合に鑑みてなされたもので、同−超
音波探触子内に駆動周波数の異なる超音波振動子配列群
を設けることにより、診断中における超音波探触子の交
換を不要にし、さらには駆動周波数の異なるそれぞれの
断層像を、同一画面上に実時間で表示することができる
超音波探触子を提供することを目的とする。The present invention has been made in view of the above-mentioned disadvantages, and by providing a group of ultrasonic transducer arrays with different driving frequencies in the ultrasonic probe, there is no need to replace the ultrasonic probe during diagnosis. Another object of the present invention is to provide an ultrasonic probe that can display tomographic images of different driving frequencies on the same screen in real time.
以下、図面により本発明の詳細な説明する。Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図、第２図は本発明の第１の実施例を簡略化して示
した要部斜視図及び側面図である。駆動周波数２．５Ｍ
Ｈｚの超音波振動子配列群１と、駆動周波数５．０ＭＨ
７の超音波振動子配列群２が、ケース６の一主面上に直
線状に配列されている。超音波振動子配列群１の幅及び
高さは、超音波振動子配列群２０幅及び高さよシ大きい
。４は被検体へ超音波信号を効率よく伝搬させるだめの
音響整合層、６は超音波診断装置本体と超音波探触子を
つなぐ接続ケーブルで、超音波探触子内の駆動振動子選
択回路７に接続されている。８は超音波振動子配列群１
，２より引き出されたリード線で駆動振動子選択回路７
に接続される。９は背面負荷である。FIGS. 1 and 2 are a perspective view and a side view of the main parts, respectively, showing a first embodiment of the present invention in a simplified manner. Drive frequency 2.5M
Hz ultrasonic transducer array group 1 and drive frequency 5.0MH
Seven ultrasonic transducer array groups 2 are arranged linearly on one main surface of the case 6. The width and height of the ultrasonic transducer array group 1 are larger than the width and height of the ultrasonic transducer array group 20. 4 is an acoustic matching layer for efficient propagation of ultrasound signals to the subject, 6 is a connection cable that connects the ultrasound diagnostic equipment main body and the ultrasound probe, and a drive transducer selection circuit within the ultrasound probe. 7 is connected. 8 is ultrasonic transducer array group 1
, 2 leads to the drive vibrator selection circuit 7.
connected to. 9 is the back load.
このように、異なった超音波振動子の配列群をり、同一
画面上に異なった駆動周波数の超音波探触子で得られた
、被検体の断層像を実時間にして同時に写し出すことが
でき、各診断部分・深さに適した条件で、被検体の生体
組織の観測を行うことが可能となり、したがって、超音
波探触子の交換をする必要がなく診断上、有利である。In this way, by using different arrays of ultrasound transducers, it is possible to simultaneously display real-time tomographic images of a subject obtained by ultrasound probes with different drive frequencies on the same screen. , it becomes possible to observe the living tissue of the subject under conditions suitable for each diagnostic area and depth, and therefore there is no need to replace the ultrasound probe, which is advantageous in terms of diagnosis.
第３図は本発明の第２の実施例を簡略化して示す要部斜
視図であって、周波数２．６Ｍ）１２で駆動される超音
波振動子配列群１と、周波数５ＭＨｚで駆動される超音
波振動子群列群２と、周波数３・６ＭＨｚで駆動される
超音波振動子配列群３とが、第１の実施例と同様に、ケ
ース５の同一面上に直線的に配列されている。したがっ
て、同一画面上に異なった駆動周波数の超音波探触子で
得られた、被検体の断層像カζ実時間にして同時に写し
出され、各診断部分・深さに適した条件で、被検体の生
体組織の観測を行うことが可能となる。FIG. 3 is a simplified perspective view of the main parts of the second embodiment of the present invention, in which the ultrasonic transducer array group 1 is driven at a frequency of 2.6 M) and the ultrasonic transducer array group 1 is driven at a frequency of 5 MHz. The ultrasonic transducer array group 2 and the ultrasonic transducer array group 3 driven at a frequency of 3.6 MHz are arranged linearly on the same surface of the case 5, as in the first embodiment. There is. Therefore, the tomographic images of the subject obtained by ultrasound probes with different drive frequencies are displayed simultaneously on the same screen in real time, and the images of the subject are displayed on the same screen in real time. It becomes possible to observe biological tissues.
第４図は本発明の第１の実施例による断層図の判であっ
て、同一画面上に異なった駆動周波数の被検体の断層画
面が表示されている。ム画面は、駆動周波数が低い２．
５ＭＨ２の超音波振動子配列群１で得られた断層像で、
高い駆動周波数ｓＭＨｚのものに比べ、分解能は劣るが
、深部における感度は高い。これに対し８画面は、駆動
周波数が高い、超音波振動子配列群２で得られた断層像
であり、分解能は、超音波振動子配列群１で得られるも
のより良いが、深部における感度は低いことがわかる。FIG. 4 shows a tomographic image according to the first embodiment of the present invention, in which tomographic images of a subject having different drive frequencies are displayed on the same screen. 2. The system screen has a low driving frequency.
A tomographic image obtained with 5MH2 ultrasound transducer array group 1,
Although the resolution is inferior to that with a high drive frequency of sMHz, the sensitivity in deep areas is high. On the other hand, the 8th screen is a tomographic image obtained with ultrasonic transducer array group 2, which has a high driving frequency, and the resolution is better than that obtained with ultrasonic transducer array group 1, but the sensitivity in deep parts is You can see that it is low.
すなわち、同一超音波探触子により各駆動周波数によっ
て得られた断層像はそれぞれ特徴を持っておシ、同一画
面にて実時間で両者の画像を得ることができる。よって
、超音波探触子の交換の手間がなくなる。まだ両者の画
像ム、Ｂの画像の比較が同時に簡単に行うことができる
。That is, the tomographic images obtained by the same ultrasonic probe at each drive frequency each have their own characteristics, and both images can be obtained in real time on the same screen. Therefore, there is no need to replace the ultrasonic probe. It is still possible to easily compare both images and the B image at the same time.
第６図は本発明の第３つ実施例を簡略化して示した斜視
図である。超音波振動子配列群１を、駆動周波数２．５
ＭＨｚで駆動し、超音波振動子配列群２を、駆動周波数
６ＭＨｚで駆動するものである。FIG. 6 is a simplified perspective view of a third embodiment of the present invention. The driving frequency of the ultrasonic transducer array group 1 is 2.5.
MHz, and the ultrasonic transducer array group 2 is driven at a driving frequency of 6 MHz.
本実施例は、同一超音波探触子に超音波送受波面を複数
持たせたもので、ケース６の上面と下面に超音波振動子
配列群１，２が形成されている。In this embodiment, the same ultrasonic probe is provided with a plurality of ultrasonic wave transmitting/receiving surfaces, and ultrasonic transducer array groups 1 and 2 are formed on the upper and lower surfaces of a case 6.
本実施例においても、同一超音波探触子が２つの駆動周
波数の送受波面を有しているため、診断部分、被検深さ
によって超音波探触子の交換をする必要がなく診断が行
なえる。In this example as well, since the same ultrasound probe has a transmitting and receiving wave surface with two drive frequencies, there is no need to replace the ultrasound probe depending on the diagnosis area and depth to be examined, and diagnosis can be performed. Ru.
第６図は本発明の第４の実施例を簡略化した斜視図であ
る。超音波振動子配列群１を駆動周波数２．６Ｍｔｌｚ
で駆動し、超音波振動子配列群２を駆動周波数ｓＭＨｚ
で駆動し、超音波振動子配列群３を駆動周波数３．ｓＭ
Ｈｚで駆動するものである。FIG. 6 is a simplified perspective view of a fourth embodiment of the invention. Driving frequency of ultrasonic transducer array group 1 is 2.6Mtlz
The ultrasonic transducer array group 2 is driven at a driving frequency of sMHz.
The ultrasonic transducer array group 3 is driven at a driving frequency of 3. sM
It is driven at Hz.
本実施例も第３の実施例と同様に、同一超音波探触子に
超音波送受波面を複数持たせたもので、ケース６の上面
、下面、側面に超音波振動子配列群１，２．３が形成さ
れている。各送受波面の超音波振動子配列群に加えられ
る駆動周波数は異なっているので、診断部分、被検深さ
によって超音波探触子の交換をする必要がなく診断が行
なえる。Similar to the third embodiment, this embodiment also has a plurality of ultrasonic wave transmitting/receiving surfaces on the same ultrasonic probe. .3 is formed. Since the driving frequencies applied to the ultrasonic transducer array groups on each transmitting/receiving wave surface are different, diagnosis can be performed without the need to replace the ultrasonic probe depending on the diagnosis area and depth to be examined.
第７図は本発明の各実施例に用いられる超音波診断装置
の構成を示すものである。１０，１１゜１２は異なる周
波数の送信パルス発生器であり、送信パルス切換回路１
３に送られる。探触子種別信号発生器１４は本発明にお
ける超音波探触子の種別、例えば駆動周波数が２種類の
ものか、あるいは３種類のものかの種別を示す信別を発
生するもので、外部からの入力でいずれかの種別が選択
され、その信号は切換制御回路１６及び駆動振動子制御
回路１６に入力される。切換制御回路１６は探触子種別
信号により、送信パルス切換回路１３の制御信号を発生
させる。入力された制御信号により、送信パルス切換回
路１３で送信パルスを選択したものが、送信パルス増幅
器１了によって増幅される。次に駆動振動子制御回路１
６は、振動子群１８に印加する増幅されたパルスを選択
する駆動振動子選択回路７の制御信号を発生させる。FIG. 7 shows the configuration of an ultrasonic diagnostic apparatus used in each embodiment of the present invention. 10, 11 and 12 are transmission pulse generators of different frequencies, and transmission pulse switching circuit 1
Sent to 3. The probe type signal generator 14 generates a signal indicating the type of the ultrasonic probe according to the present invention, for example, whether the drive frequency is two types or three types. One of the types is selected by the input, and the signal thereof is input to the switching control circuit 16 and the drive vibrator control circuit 16. The switching control circuit 16 generates a control signal for the transmission pulse switching circuit 13 based on the probe type signal. Based on the input control signal, the transmission pulse selected by the transmission pulse switching circuit 13 is amplified by the transmission pulse amplifier 1. Next, drive vibrator control circuit 1
6 generates a control signal for the drive vibrator selection circuit 7 that selects the amplified pulse to be applied to the vibrator group 18.
なお、駆動振動子選択回路７により駆動された各超音波
振動子群１８から受信された反射信号は受信部１９に導
かれる。Note that the reflected signals received from each ultrasonic transducer group 18 driven by the driving transducer selection circuit 7 are guided to the receiving section 19.
以上説明したように、本発明による超音波探触子は異な
った駆動周波数の超音波振動子配列群を同一超音波探触
子に設けであるだめ、駆動周波数による超音波探触子の
交換の手間がなくなり、かつ診断上の操作が容易となる
。さらに超音波振動子配列群を、超音波の同一送波面に
設ける構造をとることにより、被検体の断層像を異なっ
た駆動周波数で、同一画面上に同時に実時間にて写し出
すことが可能となり、超音波診断装置用探触子として、
非常に有益なものである。As explained above, in the ultrasonic probe according to the present invention, ultrasonic transducer array groups with different driving frequencies are provided in the same ultrasonic probe, so that the ultrasonic probe cannot be replaced depending on the driving frequency. This saves time and facilitates diagnostic operations. Furthermore, by adopting a structure in which an array of ultrasound transducers is provided on the same ultrasound transmission plane, it is possible to simultaneously display tomographic images of a subject at different driving frequencies on the same screen in real time. As a probe for ultrasound diagnostic equipment,
It's very useful.
第１図、第２図はそれぞれ本発明の第１実施例における
超音波探触子を示す斜視図および側面図、第３図は本発
明の第２の実施例を示す斜視図、第４図は本発明の第１
の実施例による断層像の例を示す図、第６図、第６図は
本発明の第３および第４の実施例を示す斜視図、第７図
は本発明を用いる超音波診断装置の信号系を示すブロッ
ク図である。
１．２，３．１８・・・・・・超音波振動子配列群、４
・・・・・・音響整合層、６・・・・・・超音波探触子
ケース、６・・・・・・接続ケーブル、７・・・・・・
駆動振動子選択回路、８ ；・・リード線、９・・・・
・・背面負荷、１０，１１゜１２・・・用送信ハルス発
生器、１３・・川・送信パルス切換回路、１４・・・・
・・探触子種別信号発生器、１６・・・・・・切換制御
回路、１６・・・−・・駆動振動子制御回路、１７・・
・・・・送信パルス増幅器、１９・・・甲受信部。
代理人の氏名 弁理士 中 尾 敏 男 はが１名第１
図
第２図
第３図
第４図
Ｂ
第５図
第６図1 and 2 are respectively a perspective view and a side view showing an ultrasound probe according to a first embodiment of the present invention, FIG. 3 is a perspective view showing a second embodiment of the present invention, and FIG. is the first aspect of the present invention
FIGS. 6 and 6 are perspective views showing third and fourth embodiments of the present invention, and FIG. 7 is a signal of an ultrasonic diagnostic apparatus using the present invention. FIG. 2 is a block diagram showing the system. 1.2, 3.18... Ultrasonic transducer array group, 4
...Acoustic matching layer, 6...Ultrasonic probe case, 6...Connection cable, 7...
Drive vibrator selection circuit, 8; Lead wire, 9...
・・Rear load, 10, 11° 12・・Transmission Hals generator, 13・・Stream/transmission pulse switching circuit, 14・・・・
...Probe type signal generator, 16...Switching control circuit, 16...--Drive transducer control circuit, 17...
...Transmission pulse amplifier, 19...A receiving section. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 2 Figure 3 Figure 4 B Figure 5 Figure 6
Claims (3)
の超音波振動子配列群を具備したことを特徴とする超音
波探触子。(1) An ultrasonic probe characterized by comprising a plurality of array groups of ultrasonic transducers each driven at a different drive frequency.
されていることを特徴とする特許請求の範囲第１項記載
の超音波探触子。(2) The ultrasonic probe according to claim 1, wherein a plurality of ultrasonic transducer array groups are arranged on the same surface.
面上に配列されていることを特徴とする特徴請求の範囲
第１項記載の超音波探触子。(3) The ultrasonic probe according to claim 1, wherein the plurality of ultrasonic transducer array groups are arranged on different surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57038467A JPS58155844A (en) | 1982-03-10 | 1982-03-10 | Ultrasonic probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57038467A JPS58155844A (en) | 1982-03-10 | 1982-03-10 | Ultrasonic probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58155844A true JPS58155844A (en) | 1983-09-16 |
Family
ID=12526046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57038467A Pending JPS58155844A (en) | 1982-03-10 | 1982-03-10 | Ultrasonic probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58155844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001258885A (en) * | 2000-01-25 | 2001-09-25 | Oldelft Bv | Ultrasonic probe forming ultrasonic image using contrast enhancer |
-
1982
- 1982-03-10 JP JP57038467A patent/JPS58155844A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001258885A (en) * | 2000-01-25 | 2001-09-25 | Oldelft Bv | Ultrasonic probe forming ultrasonic image using contrast enhancer |
| JP4623537B2 (en) * | 2000-01-25 | 2011-02-02 | オルデルフト・ベスローテン・フェンノートシャップ | Ultrasound probe for forming an ultrasound image using a contrast enhancer |
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