JPS6129737B2 - - Google Patents
Info
- Publication number
- JPS6129737B2 JPS6129737B2 JP13656680A JP13656680A JPS6129737B2 JP S6129737 B2 JPS6129737 B2 JP S6129737B2 JP 13656680 A JP13656680 A JP 13656680A JP 13656680 A JP13656680 A JP 13656680A JP S6129737 B2 JPS6129737 B2 JP S6129737B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- examination
- scale
- transducers
- ultrasonic probe
- 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.)
- Expired
Links
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 21
- 239000000523 sample Substances 0.000 claims description 16
- 238000002604 ultrasonography Methods 0.000 description 11
- 210000002307 prostate Anatomy 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000003745 diagnosis Methods 0.000 description 4
- 210000000664 rectum Anatomy 0.000 description 4
- 210000000436 anus Anatomy 0.000 description 2
- 210000000709 aorta Anatomy 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
Description
【発明の詳細な説明】
この発明は、前立腺等の検査に用いられる体腔
内検査用超音波診断装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic diagnostic apparatus for examining a body cavity, which is used for examining the prostate gland and the like.
体内に超音波パルスを発射し、その反射波を受
信して体内の断層像を得る超音波診断装置が普及
しつつあるが、近年このような装置を体腔内の検
査・診断にも利用する試みがなされている。例え
ば直腸内に超音波探触子を挿入して前立腺を検査
したり、カテーテル先端に取付けた超小型の超音
波探触子を心臓や大動脈内に挿入して検査する方
法である。 Ultrasonic diagnostic devices that emit ultrasonic pulses into the body and receive the reflected waves to obtain tomographic images of the inside of the body are becoming popular, but in recent years there have been attempts to use such devices for examination and diagnosis inside body cavities. is being done. For example, an ultrasonic probe is inserted into the rectum to examine the prostate, or an ultra-small ultrasonic probe attached to the tip of a catheter is inserted into the heart or aorta.
前者の前立腺検査の代表的な例としては、特開
昭53−85982に開示されているような、電子走査
型超音波診断装置を用いる検査法がある。これは
体腔内への挿入部に長さ方向に複数個の超音波振
動子を配列した超音波探触子を用い、これを直腸
内に挿入して超音波パルスを直腸方向に電子的に
走査することによつて、超音波送受波面の大きさ
(走査範囲)にほぼ等しい範囲にわたる前立腺の
断層像を得るものである。 A typical example of the former type of prostate examination is an examination method using an electronic scanning ultrasonic diagnostic apparatus, as disclosed in Japanese Patent Application Laid-Open No. 53-85982. This uses an ultrasound probe with multiple ultrasound transducers arranged lengthwise at the insertion point into the body cavity, which is inserted into the rectum and ultrasound pulses are electronically scanned in the rectal direction. By doing so, a tomographic image of the prostate is obtained over a range approximately equal to the size (scanning range) of the ultrasonic wave transmitting/receiving surface.
この場合、実際には超音波探触子の超音波送受
波面の範囲だけで被検部位である前立腺全体を一
度に検査することは困難であるため、超音波探触
子の挿入深度を調整したり、その回転角度を変え
たりする必要がある。電子走査型の超音波診断装
置では、断層像がリアルタイムで得られるため、
超音波探触子の挿入深度や回転角度を手操作で調
整して、超音波送受波面の位置を目分量で判断す
る方法がとられる。しかし、この方法は超音波送
受波面の位置判断が検査者の勘に頼るものである
ため、検査に熟練を要し、またその位置の誤判断
により最終的な診断も誤り易い。これに対し、超
音波探触子の回転を従来のPPI走査と同様モータ
によつて行なう方法を用いれば、モータに連動さ
せたポテンシヨメータ等によつて回転角度を正し
く知ることができるが、装置が大掛りで高価なも
のとなつてしまう。 In this case, it is actually difficult to examine the entire prostate gland at once using only the range of the ultrasonic wave transmitting and receiving surface of the ultrasound probe, so the insertion depth of the ultrasound probe must be adjusted. or change its rotation angle. Electronic scanning ultrasound diagnostic equipment can obtain tomographic images in real time, so
The method used is to manually adjust the insertion depth and rotation angle of the ultrasonic probe and visually determine the position of the ultrasonic wave transmitting/receiving surface. However, since this method relies on the inspector's intuition to determine the position of the ultrasonic wave transmitting/receiving surface, the examination requires skill, and the final diagnosis is also prone to errors due to misjudgment of the position. On the other hand, if we use a method in which the ultrasonic probe is rotated by a motor as in conventional PPI scanning, the rotation angle can be accurately determined using a potentiometer linked to the motor. The equipment becomes large and expensive.
一方、後者の心臓や大動脈の検査においては、
カテーテル先端部の側面に取付けられた一枚の円
板状超音波振動子で超音波探触子が構成され、カ
テーテル手元部での手動操作あるいは自動装置に
よつて機械的に走査を行なうことで、断層像を得
る。しかし、この方法では超音波探触子の挿入深
度と回転角度の調整が走査に当るため、これらの
精密なコントロールと超音波送受波面の検出が重
要となる。さらに、高速の走査は被検者に与える
危険度から困難であるため、リアルタイムで断層
像が得られない。従つて、走査方式としては複数
個の超音波振動子(アレイ振動子)による電子走
査が望ましい。 On the other hand, in the latter examination of the heart and aorta,
The ultrasonic probe consists of a disc-shaped ultrasonic transducer attached to the side of the catheter tip, and can be scanned manually at the catheter's proximal end or mechanically by an automated device. , obtain a tomographic image. However, in this method, scanning involves adjusting the insertion depth and rotation angle of the ultrasound probe, so precise control of these and detection of the ultrasound transmission/reception wavefront are important. Furthermore, since high-speed scanning is difficult due to the danger it poses to the subject, tomographic images cannot be obtained in real time. Therefore, as a scanning method, electronic scanning using a plurality of ultrasonic transducers (array transducers) is desirable.
この発明は上記した点に鑑みてなされたもの
で、体腔内への挿入部に長さ方向に沿つて複数個
の超音波振動子が配設されて、電子走査により断
層像を得るものであつて、複雑で大掛りな装置を
用いることなく超音波送受波面の位置、すなわち
その挿入深度と回転角度を容易に判別することが
可能な体腔内検査用超音波探触子を提供すること
を目的とする。 This invention has been made in view of the above points, and is an object in which a plurality of ultrasonic transducers are arranged along the length of a part inserted into a body cavity, and a tomographic image is obtained by electronic scanning. The purpose of the present invention is to provide an ultrasonic probe for intracorporeal examination that can easily determine the position of the ultrasonic wave transmitting/receiving surface, that is, its insertion depth and rotation angle, without using a complicated and large-scale device. shall be.
以下、この発明を実施例により詳細に説明す
る。 Hereinafter, this invention will be explained in detail with reference to Examples.
第1図および第2図はこの発明の一実施例に係
る体腔内検査用超音波探触子の外観図および長さ
方向に沿う断面図である。図に示すように、この
超音波探触子は筒状に形成した体腔内への挿入部
1と、この挿入部1の基部にこれと一体的かつ同
軸的に設けられた把持部2とからなつている。挿
入部1には、その長さ方向Aに沿つて複数個の超
音波振動子(アレイ振動子)3が一列に配設され
ている。これらの超音波振動子3からは、これら
の振動子への駆動パルスの供給およびこれらの振
動子が受信した反射波信号を取出すためのリード
線4が個別に引出されており、これらのリード線
4は1本のケーブル5となつて把持部2から外部
に導出され、図示しない電子走査形超音波診断装
置本体へ接続される。 1 and 2 are an external view and a sectional view along the length direction of an ultrasound probe for intracorporeal examination according to an embodiment of the present invention. As shown in the figure, this ultrasonic probe consists of a cylindrical insertion section 1 that is inserted into a body cavity, and a grip section 2 that is integrally and coaxially provided at the base of the insertion section 1. It's summery. In the insertion section 1, a plurality of ultrasonic transducers (array transducers) 3 are arranged in a line along the length direction A thereof. Lead wires 4 are individually led out from these ultrasonic transducers 3 for supplying drive pulses to these transducers and for extracting reflected wave signals received by these transducers. The cable 4 is led out from the grip 2 as a single cable 5, and is connected to a main body of an electronic scanning ultrasonic diagnostic apparatus (not shown).
さて、ここで挿入部1の周面には、その長さ方
向Aに沿つて挿入深度目盛6が付けられている。
この目盛6は挿入部1の周面全周にわたり付けら
れていてもよいし、超音波振動子3のある超音波
送受波面と反対側の面1′にのみ付けられていて
もよい。 Now, here, an insertion depth scale 6 is provided on the circumferential surface of the insertion portion 1 along the length direction A thereof.
The scale 6 may be provided over the entire circumference of the insertion portion 1, or may be provided only on the surface 1' opposite to the ultrasonic wave transmitting/receiving surface where the ultrasonic transducer 3 is located.
一方、把持部2の周面には、その周方向Bに沿
つて回転角度目盛7が付けられている。この目盛
7も把持部2の周面全周にわたり付けられていて
もよいし、超音波送受波面と反対側の面にのみ付
けられていてもよいが、特に図示の如く超音波送
受波面とちようど反対側(超音波送受波面と直角
な方向)を通る目盛を基準位置と(例えば0゜)
するような表示であることが望ましい。 On the other hand, a rotation angle scale 7 is provided on the circumferential surface of the grip portion 2 along the circumferential direction B thereof. The scale 7 may also be provided all around the circumferential surface of the grip portion 2, or may be provided only on the surface opposite to the ultrasonic wave transmitting/receiving surface. The scale passing through the opposite side (perpendicular to the ultrasonic wave transmitting/receiving surface) is the reference position (for example, 0°).
It is desirable that the display be such that the
このような2種の目盛6,7を付けると、超音
波送受波面の位置を容易にかつ正しく判別するこ
とができ、体腔内の検査・診断上、極めて有用で
ある。すなわち、この超音波探触子を例えば直腸
内に挿入して前立腺の検査に用いる場合、肛門位
置における目盛6の値を読取ることによつて、挿
入部1の挿入深度、つまり得られた断層像上で前
立腺、内尿道口等の器管が肛門よりどの程度の深
さまで表示されているかが容易にわかる。さら
に、挿入部の先端が直腸内のどの位置まで到達し
ているかもわかるので、挿入部1の挿入し過ぎに
より直腸壁を傷つける等の事故を未然に防ぐこと
ができる。 When two types of scales 6 and 7 are provided, the position of the ultrasonic wave transmitting/receiving surface can be easily and correctly determined, which is extremely useful for inspection and diagnosis inside the body cavity. That is, when this ultrasonic probe is inserted into the rectum and used for prostate examination, the insertion depth of the insertion section 1, that is, the obtained tomographic image, can be determined by reading the value on the scale 6 at the anus position. Above, you can easily see how deep the organs such as the prostate and internal urethral meatus are shown from the anus. Furthermore, since it is possible to know to what position in the rectum the tip of the insertion section has reached, it is possible to prevent accidents such as damage to the rectal wall due to over-insertion of the insertion section 1.
また、目盛7によつて直腺内で超音波振動子3
がどの方向に超音波の送受を行なつているかがわ
かるので、断層像上に現れた前立腺の異常(肥大
や腫瘍)が体の正中位置よりどの角度の方向にあ
るか等の判断を容易に行なうことができる。 Also, according to the scale 7, the ultrasonic transducer 3 is
Since it is possible to see in which direction the ultrasound waves are being transmitted and received, it is easy to determine which angle of the prostate abnormality (enlargement or tumor) that appears on the tomographic image is located from the midline of the body. can be done.
以上のように、この発明によれば挿入深度およ
び回転角度を知るための2種の目盛を超音波探触
子の表面に設けるという簡単な手段によつて、ア
レイ振動子で形成される超音波送受波面の位置を
正確に、かつ複雑な装置を必要としたり特別熟練
を要することなく容易に把握でき、検査・診断の
質的向上と効率化、さらに超音波に対する安全性
の向上に大きく寄与することができる。 As described above, according to the present invention, ultrasonic waves generated by an array transducer can be The position of the transmitting/receiving wave surface can be accurately and easily determined without the need for complicated equipment or special skill, greatly contributing to improving the quality and efficiency of examinations and diagnosis, as well as improving safety against ultrasound. be able to.
第1図および第2図はこの発明の一実施例に係
る超音波探触子の外観図および断面図である。
1……挿入部、2……把持部、3……超音波振
動子、6……挿入深度目盛、7……回転角度目
盛。
FIGS. 1 and 2 are an external view and a sectional view of an ultrasonic probe according to an embodiment of the present invention. 1... Insertion section, 2... Grip section, 3... Ultrasonic transducer, 6... Insertion depth scale, 7... Rotation angle scale.
Claims (1)
波振動子を配設してなる体腔内検査用超音波探触
子において、前記挿入部周面の長さ方向に挿入深
度目盛を付け、前記挿入部の基端に一体的に設け
られた把持部周面の周方向に回転角度目盛を付け
たことを特徴とする体腔内検査用超音波探触子。1. In an ultrasonic probe for intrabody cavity examination in which a plurality of ultrasonic transducers are disposed longitudinally in an insertion portion into a body cavity, an insertion depth scale is provided in the length direction on the circumferential surface of the insertion portion. 1. An ultrasonic probe for intracorporeal examination, characterized in that a rotation angle scale is provided in the circumferential direction of a circumferential surface of a grip part integrally provided at the proximal end of the insertion part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13656680A JPS5759525A (en) | 1980-09-30 | 1980-09-30 | Ultrasonic probe for inspecting inside of body cavity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13656680A JPS5759525A (en) | 1980-09-30 | 1980-09-30 | Ultrasonic probe for inspecting inside of body cavity |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5759525A JPS5759525A (en) | 1982-04-09 |
JPS6129737B2 true JPS6129737B2 (en) | 1986-07-09 |
Family
ID=15178238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13656680A Granted JPS5759525A (en) | 1980-09-30 | 1980-09-30 | Ultrasonic probe for inspecting inside of body cavity |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5759525A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0410822Y2 (en) * | 1989-12-18 | 1992-03-17 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0698132B2 (en) * | 1986-06-04 | 1994-12-07 | オリンパス光学工業株式会社 | Ultrasonic diagnostic equipment |
JPS63220850A (en) * | 1987-03-10 | 1988-09-14 | 松下電器産業株式会社 | Ultrasonic probe for body cavity |
JPH0529691Y2 (en) * | 1988-12-28 | 1993-07-29 | ||
JP2010148705A (en) * | 2008-12-25 | 2010-07-08 | Fujifilm Corp | Ultrasonic probe and ultrasonic observation system |
-
1980
- 1980-09-30 JP JP13656680A patent/JPS5759525A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0410822Y2 (en) * | 1989-12-18 | 1992-03-17 |
Also Published As
Publication number | Publication date |
---|---|
JPS5759525A (en) | 1982-04-09 |
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