JPH02302249A - Ultrasonic diagnostic device - Google Patents

Ultrasonic diagnostic device

Info

Publication number
JPH02302249A
JPH02302249A JP1121466A JP12146689A JPH02302249A JP H02302249 A JPH02302249 A JP H02302249A JP 1121466 A JP1121466 A JP 1121466A JP 12146689 A JP12146689 A JP 12146689A JP H02302249 A JPH02302249 A JP H02302249A
Authority
JP
Japan
Prior art keywords
probe
guide
shoe
ultrasonic diagnostic
inspected
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
Application number
JP1121466A
Other languages
Japanese (ja)
Inventor
Yasuto Takeuchi
康人 竹内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE Healthcare Japan Corp
Original Assignee
Yokogawa Medical Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yokogawa Medical Systems Ltd filed Critical Yokogawa Medical Systems Ltd
Priority to JP1121466A priority Critical patent/JPH02302249A/en
Publication of JPH02302249A publication Critical patent/JPH02302249A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain an ultrasonic diagnostic device whose operation is reproducible by providing a probe guide over the part to be inspected of an object, and constraining some of the degrees of freedom for the movement and inclination of a probe. CONSTITUTION:A guide 20 is constituted of supporting bases 20b fixed at two sides of a guide part 20a, and a shoe 21 is connected movably freely to the guide part 20a along the guide part 20a. And the probe 1 is loaded on the shoe 21 with a fixed piece 22 in such a manner that it can be freely lifted and also, freely turned centering a z-axis. When diagnosis is applied, the guide 20 is disposed over the part targeted to be diagnosed of the object 23 lying on a bed 24, and the shoe 21 on which the probe 1 is loaded is moved manually along the guide part 20a, then, the part targeted to be inspected of the object 23 is inspected. The probe 1 is moved along the guide 21, and the movement in a y-axial direction and the rotation phi of it is constrained. Therefore, high reproducibility can be obtained even in the diagnosis by a manual operation.

Description

【発明の詳細な説明】[Detailed description of the invention]

[産業上の利用分野] 本発明は被検体に超音波信号を送信して、その受信信号
により被検体の診断を行う超音波診断装置の改良に関す
るものである。 [従来の技術] 超音波診断装置は超音波を被検体内に放射し、超音波の
減衰や反射の度合が組織やその病変部によって異なるこ
とを利用して、被検体内の各部からの反射波を分析して
診断する装置である。 この超音波診断装置の方式には数種類あるが、その一つ
として簡易センサを内蔵し、被検体の体表を移動する超
音波探触子の変位量を積算するための諸量を検知するよ
うに構成されたものが開発されている。第4図は該診断
装置の探触子を示すもので、図中1は探触子、2は超音
波ビームを送受信する振動子、3は背面に向かう不要な
超音波ビームを吸収するバッキング材、4は探触子1の
動きによって生ずる加速度を測定するための重りで、重
り4はその上部および下部の頂点4a14bにおいて、
それぞれ120度の角度をなして配置された3個の素子
で構成される応力センサ5および6と機械的に接続され
ており、上記重り4及び応力センサ5.6により6軸加
速度計7を構成し、第5図に示すXs’WsZsマ、Φ
及びeの加速度を求め得るようになっている。なお8は
振動子2に対する送受信信号及び6軸加速度計7の出力
信号その他の電気信号を診断装置本体に送るためのケー
ブルである。 第6図は上記探触子1を使用して診断する方法を示すも
ので、被検体の体表面9上で(a)図にみるように探触
子1を傾けたり、(b)図のように体表面9上を移動さ
せたりして検査対象部位を診断する。この結果探触子1
の動きは3軸2角度すなわちXsV%z、(3及びΦの
自由度を有している。 第7図は上記加速度計7の出力を処理する超音波診断装
置本体のブロック図である。図において10は6軸加速
度計7からの信号を増幅するアンプでその出力はマルチ
プレクサ11に入力する。 マルチプレクサ11に入力された6個の加速度信号はシ
リーズの信号に変換された後、AD変換器12によりデ
ィジタル信号に変換され、マイクロプロセッサ(以下m
PUと称す)13に送られる。 14は探触子1に装着された押しぼたんスイッチで、イ
ンタフェイス15を介してmP013に接続されている
。mPU13は加速度信号を演算して、第5図に示すX
5YsZ方向の直線加速度と、−Ω、Φ、eの回転角加
速度とに分離し、さらにそれを2回積分して位置信号と
角度信号とを得ている。16は振動子2に送信信号を送
り、また振動子2からのエコー信号に対し増幅その他の
処理を行う送受信機で、エコー信号はAD変換器17に
よりディジタル信号に変換され、ディジタルスキャンコ
ンバータ(以下DSCと称する)18に入力される。D
SC18は上記mP013からの位置信号と角度信号に
基くアドレスに上記エコー信号を書き込んで画像を構成
し、TV変換器19を介しTV20に表示するのである
。 [発明が解決しようとする課題〕 ところで上記診断装置は3輔3角度の自由度を備え、探
触子1の動き全てをフォローする筈である。しかし実際
に当たって、特に探触子1を手持ちで操作する場合は、
探触子1を被検断面全域に亘り再現性よく規定できるよ
うに動かすことは出来ない。すなわち目視しながら手動
で操作したのでは、同じ面あるいは音線の軌跡を再びス
キャンすることは不可能で、操作の再現性の得られない
ことが上記従来の診断装置の問題点であった。 本発明は従来装置の上記問題点を解消するためになされ
たもので、操作の再現性可能な超音波診断装置を提供し
ようとするものである。 [課題を解決するための手段] 上記目的を達成するため、本発明に係る超音波診断装置
においては、探触子の動きの自由度のうち1個または2
個を拘束するようなガイドを設けた。 [作用] 上記ガイドに沿って探触子を移動させることにより、探
触子は同じ動線をとることが可能となり再現性が得られ
る。
[Industrial Field of Application] The present invention relates to an improvement in an ultrasonic diagnostic apparatus that transmits an ultrasonic signal to a subject and diagnoses the subject based on the received signal. [Prior art] Ultrasonic diagnostic equipment emits ultrasonic waves into the subject's body, and uses the fact that the degree of attenuation and reflection of ultrasound waves differs depending on the tissue and its lesion to detect the reflections from various parts of the subject's body. This is a device that analyzes and diagnoses waves. There are several types of ultrasonic diagnostic equipment, one of which is a built-in simple sensor that detects various quantities to integrate the displacement of the ultrasonic probe as it moves over the body surface of the subject. A system consisting of the following has been developed. Figure 4 shows the probe of the diagnostic device, in which 1 is the probe, 2 is a transducer that transmits and receives ultrasound beams, and 3 is a backing material that absorbs unnecessary ultrasound beams directed toward the back. , 4 is a weight for measuring the acceleration caused by the movement of the probe 1, and the weight 4 has, at its upper and lower vertices 4a14b,
It is mechanically connected to stress sensors 5 and 6 consisting of three elements arranged at an angle of 120 degrees, and a six-axis accelerometer 7 is configured by the weight 4 and stress sensors 5 and 6. Then, Xs'WsZsma shown in Fig. 5, Φ
and the acceleration of e can be obtained. Reference numeral 8 designates a cable for sending transmission/reception signals to the vibrator 2, output signals from the six-axis accelerometer 7, and other electrical signals to the main body of the diagnostic apparatus. Figure 6 shows a diagnosis method using the probe 1, in which the probe 1 is tilted on the body surface 9 of the subject as shown in (a), and (b) the probe 1 is tilted as shown in figure (b). The examination target site is diagnosed by moving the body surface 9 as shown in FIG. As a result, probe 1
The movement has degrees of freedom of 3 axes and 2 angles, that is, XsV%z, (3 and Φ. FIG. 7 is a block diagram of the main body of the ultrasonic diagnostic apparatus that processes the output of the accelerometer 7. 10 is an amplifier that amplifies the signal from the 6-axis accelerometer 7, and its output is input to the multiplexer 11. The six acceleration signals input to the multiplexer 11 are converted into series signals, and then sent to the AD converter 12. is converted into a digital signal by a microprocessor (hereinafter referred to as m).
(referred to as PU) 13. 14 is a push-button switch attached to the probe 1, and is connected to mP013 via an interface 15. The mPU 13 calculates the acceleration signal and calculates the
The linear acceleration in the 5YsZ direction and the rotational angular acceleration in -Ω, Φ, and e are separated, and then integrated twice to obtain a position signal and an angle signal. 16 is a transmitter/receiver that sends a transmission signal to the transducer 2 and performs amplification and other processing on the echo signal from the transducer 2. The echo signal is converted into a digital signal by an AD converter 17, and a digital scan converter (hereinafter referred to as (referred to as DSC) 18. D
The SC 18 writes the echo signal to an address based on the position signal and angle signal from the mP013 to compose an image, and displays the image on the TV 20 via the TV converter 19. [Problems to be Solved by the Invention] By the way, the above diagnostic device has three degrees of freedom and is supposed to follow all movements of the probe 1. However, in practice, especially when operating probe 1 hand-held,
It is not possible to move the probe 1 over the entire area to be examined so that it can be defined with good reproducibility. That is, if the diagnostic apparatus is operated manually while visually observing, it is impossible to scan the same surface or the locus of the sound ray again, and the problem with the conventional diagnostic apparatus is that the reproducibility of the operation cannot be obtained. The present invention has been made to solve the above-mentioned problems of conventional devices, and aims to provide an ultrasonic diagnostic device whose operation is reproducible. [Means for Solving the Problems] In order to achieve the above object, in the ultrasonic diagnostic apparatus according to the present invention, one or two of the degrees of freedom of movement of the probe are
A guide was set up to restrain individuals. [Function] By moving the probe along the guide, the probe can follow the same line of motion and reproducibility can be achieved.

【発明の実施例】[Embodiments of the invention]

第1図は本発明の一実施例を示す探触子のガイドの(a
)は正面図、(b)は側面図、第2図はその要部の拡大
図で(a)は正面図、(b)は側面図である。図にみる
ように、ガイド20はガイド部20aの両側に支持台2
0bを固着してなり、ガイド部20mにはシュー21か
ガイド部20aに沿って移動自在に係着されている。そ
してこのシュー21には探触子1が同定片22により昇
降自在かつ2軸を中心に回転自在に装着されている。 診断に際しては、ベッド24上に横たわる被検体23の
診断対象部位の上方にガイド20を配設し、探触子1を
装着したシュー21を手動でガイド部20aに沿って移
動させ、被検体25の検査対象部位を検査する。探触子
1はガイド21に沿って移動し、図のy軸方向への移動
と回転Φは拘束されるので、手動による診断でも高い再
現性が得られる。 なお探触子1のガイドへの係着は、本実施例に示すシュ
ー21に限定するものでなく、第3図aに示すように、
鋼板、25aを張ったガイド25面を、底部に磁石26
を装着した探触子保持器27を走行させるようにしても
よい。磁石は永久磁石でも電磁石でもよく、また第3図
すに示すように探触子保持器27は車輪27aの代わり
に、摩擦抵抗の小さい材料で形成した突起27bを設け
てもよい。 [発明の効果] 本発明は、超音波診断装置において探触子ガイドを備え
、診断に際し探触子をこのガイドに沿って移動させるよ
うに構成したので、被検体の同じ被診断面や音線の軌跡
をスキャン出来ることとなり、超音波診断装置の利用効
率を大きく向上させることとなった。
FIG. 1 shows a probe guide (a) showing an embodiment of the present invention.
) is a front view, (b) is a side view, FIG. 2 is an enlarged view of the main part, (a) is a front view, and (b) is a side view. As shown in the figure, the guide 20 has support stands 2 on both sides of the guide part 20a.
The shoe 21 is fixed to the guide portion 20m so as to be movable along the guide portion 20a. The probe 1 is attached to the shoe 21 so that it can be raised and lowered by an identification piece 22 and rotated about two axes. During diagnosis, the guide 20 is placed above the diagnosis target area of the subject 23 lying on the bed 24, and the shoe 21 with the probe 1 attached is manually moved along the guide part 20a. The area to be inspected is inspected. Since the probe 1 moves along the guide 21 and its movement in the y-axis direction and rotation Φ in the figure are restricted, high reproducibility can be obtained even in manual diagnosis. Note that the attachment of the probe 1 to the guide is not limited to the shoe 21 shown in this embodiment, but as shown in FIG. 3a,
The guide 25 surface covered with a steel plate 25a is attached with a magnet 26 at the bottom.
The probe holder 27 equipped with the probe holder 27 may be moved. The magnet may be a permanent magnet or an electromagnet, and as shown in FIG. 3, the probe holder 27 may be provided with protrusions 27b made of a material with low frictional resistance instead of the wheels 27a. [Effects of the Invention] According to the present invention, an ultrasonic diagnostic apparatus is provided with a probe guide, and the probe is moved along this guide during diagnosis. The trajectory of the image can be scanned, greatly improving the efficiency of using ultrasound diagnostic equipment.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例である超音波診断装置の(a
)は正面図、(b)は側面図、第2図はその要部の(a
)は正面図、(b)は側面図、第3図(a)、(b)は
他の実施例の側面図、第4図は従来の診断装置の探触子
の要部斜視図、第5図は自由度を示す斜視図、第6図は
探触子の使用法の説明図、第7図は超音波診断装置本体
のブロック図である。 図中20は探触子ガイド、20aはそのガイド部、20
bは支持台、21はシュー、22は固定片、23は被検
体、25は探触子ガイド、25gは鋼板、26は磁石、
27は探触子保持器、27aは車輪、27bは突起であ
る。 なお図中の同一符号は同一または相当部品を示すものと
する。 代理人  弁理士  佐々木宗治 第4図 第5図 23:づP1ンミン1りでイ21; 第 25、J牙角工子力゛イド 27b:芙2 一シY (b) 1図
FIG. 1 shows (a
) is a front view, (b) is a side view, and Figure 2 is a main part (a).
) is a front view, FIG. 3(b) is a side view, FIGS. 3(a) and 3(b) are side views of other embodiments, FIG. 4 is a perspective view of main parts of a probe of a conventional diagnostic device, FIG. 5 is a perspective view showing degrees of freedom, FIG. 6 is an explanatory diagram of how to use the probe, and FIG. 7 is a block diagram of the main body of the ultrasonic diagnostic apparatus. In the figure, 20 is a probe guide, 20a is its guide part, 20
b is a support base, 21 is a shoe, 22 is a fixed piece, 23 is a subject, 25 is a probe guide, 25g is a steel plate, 26 is a magnet,
27 is a probe holder, 27a is a wheel, and 27b is a projection. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Patent Attorney Muneharu Sasaki Figure 4 Figure 5 Figure 23: P1 Nmin 1 Ride A 21;

Claims (1)

【特許請求の範囲】  探触子を被検体の体表上を手動で移動あるいは傾けて
診断を行う超音波診断装置において、被検体の検査部位
の上方に探触子ガイドを備え、上記探触子の移動および
傾きの自由度の幾つかを拘束するように構成した ことを特徴とする超音波診断装置。
[Scope of Claims] An ultrasonic diagnostic apparatus that performs diagnosis by manually moving or tilting a probe over the body surface of a subject, wherein a probe guide is provided above the test site of the subject, and the probe An ultrasonic diagnostic apparatus characterized by being configured to restrict some of the degrees of freedom of movement and inclination of the child.
JP1121466A 1989-05-17 1989-05-17 Ultrasonic diagnostic device Pending JPH02302249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1121466A JPH02302249A (en) 1989-05-17 1989-05-17 Ultrasonic diagnostic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1121466A JPH02302249A (en) 1989-05-17 1989-05-17 Ultrasonic diagnostic device

Publications (1)

Publication Number Publication Date
JPH02302249A true JPH02302249A (en) 1990-12-14

Family

ID=14811843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1121466A Pending JPH02302249A (en) 1989-05-17 1989-05-17 Ultrasonic diagnostic device

Country Status (1)

Country Link
JP (1) JPH02302249A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262991A (en) * 1975-11-20 1977-05-24 Hitachi Medical Corp Ultrasonic diagnostic scanning device
JPS5751514B2 (en) * 1973-12-21 1982-11-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751514B2 (en) * 1973-12-21 1982-11-02
JPS5262991A (en) * 1975-11-20 1977-05-24 Hitachi Medical Corp Ultrasonic diagnostic scanning device

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