JP2659591B2 - Ultrasonic equipment - Google Patents
Ultrasonic equipmentInfo
- Publication number
- JP2659591B2 JP2659591B2 JP1200793A JP20079389A JP2659591B2 JP 2659591 B2 JP2659591 B2 JP 2659591B2 JP 1200793 A JP1200793 A JP 1200793A JP 20079389 A JP20079389 A JP 20079389A JP 2659591 B2 JP2659591 B2 JP 2659591B2
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- ultrasonic oscillator
- circuit
- frequency oscillation
- frequency
- 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 - Lifetime
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- Percussion Or Vibration Massage (AREA)
- Radiation-Therapy Devices (AREA)
- Surgical Instruments (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は、超音波治療器や超音波診断装置等の超音波
機器に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an ultrasonic device such as an ultrasonic treatment device and an ultrasonic diagnostic device.
＜従来の技術＞ 一般に、超音波治療器は、超音波発振体に高周波電力
を印加することにより発生する超音波を、人体の患部ま
たは経穴等に照射して、温熱作用、鎮痛作用およびミク
ロな機械的振動作用を与えることによって治療効果を得
る医療機器で、腰痛、神経痛さらには肩凝り等の治療に
有効であることが知られている。<Related Art> Generally, an ultrasonic therapy device irradiates an ultrasonic wave generated by applying high-frequency power to an ultrasonic oscillator to an affected part or acupuncture points of a human body, and has a heating effect, an analgesic effect and a microscopic effect. It is a medical device that obtains a therapeutic effect by giving a mechanical vibration effect, and is known to be effective in treating low back pain, neuralgia, and stiff shoulders.
一方、超音波診断装置は、超音波発振体から発生する
超音波を人体の患部等に照射し、その人体内部からの超
音波反射像を撮像してその像によりに診断を行う医療機
器である。On the other hand, an ultrasonic diagnostic apparatus is a medical device that irradiates an ultrasonic wave generated from an ultrasonic oscillator to an affected part of a human body or the like, captures an ultrasonic reflected image from the inside of the human body, and performs diagnosis based on the image. .
これらの医療機器において、効率のよい治療、あるい
は正確な診断を行うためには、超音波発振体を備えたパ
ッド等を人体に充分に密着させる必要がある。In these medical devices, in order to perform efficient treatment or accurate diagnosis, it is necessary to sufficiently adhere a pad or the like provided with an ultrasonic oscillator to a human body.
＜発明が解決しようとする課題＞ ところが、従来の超音波治療器においては、パッドと
人体との密着度が良好であるか否かを知ることは不可能
で、このため、パッドの密着が悪い場合であっても治療
を続けてしまい、結果として充分な治療効果を得ること
ができないという問題がある。なお、超音波診断機器に
ついても同様なことが言え、診断を正確に行えないこと
がある。<Problems to be Solved by the Invention> However, in the conventional ultrasonic therapy device, it is impossible to know whether the degree of adhesion between the pad and the human body is good, and therefore, the adhesion of the pad is poor. Even in this case, there is a problem that the treatment is continued, and as a result, a sufficient therapeutic effect cannot be obtained. The same can be said for the ultrasonic diagnostic equipment, and the diagnosis may not be performed accurately.
＜課題を解決するための手段＞ 本発明は、上記の問題点を解決すべくなされたもの
で、その構成を実施例に対応する図面を参照しつつ説明
すると、本発明は、高周波発振回路２と超音波発振体３
を接続する導線Ｌに、超音波発振体３によって反射され
る高周波電力を検出する回路手段４を接続したことによ
って特徴づけられる。<Means for Solving the Problems> The present invention has been made to solve the above problems, and the configuration thereof will be described with reference to the drawings corresponding to the embodiments. And ultrasonic oscillator 3
Is connected to a conducting wire L for detecting high-frequency power reflected by the ultrasonic oscillator 3.
＜作用＞ 超音波発振体と人体との密着度が悪いと、高周波発振
回路側のインピーダンスと超音波発振体のインピーダン
スと間に差異が生じ、これにより、高周波発振回路から
の高周波電力の一部は超音波発振体の入力端において反
射される。従って、この反射電力の量、いわゆるリター
ンロスを検出すれば、その検出値から超音波発振体の人
体への密着度の良否を知ることが可能になる。<Operation> If the degree of adhesion between the ultrasonic oscillator and the human body is poor, there is a difference between the impedance of the high-frequency oscillator circuit and the impedance of the ultrasonic oscillator, whereby a part of the high-frequency power from the high-frequency oscillator circuit is generated. Is reflected at the input end of the ultrasonic oscillator. Therefore, if the amount of the reflected power, that is, the so-called return loss, is detected, it is possible to know whether or not the degree of adhesion of the ultrasonic oscillator to the human body is good from the detected value.
＜実施例＞ 図面は本発明実施例の構成を示すブロック図であっ
て、超音波治療器に本発明を適用した例を示す。<Embodiment> The drawings are block diagrams showing the configuration of an embodiment of the present invention, and show an example in which the present invention is applied to an ultrasonic therapy device.
高周波発振回路２は、出力停止スイッチS2および電源
スイッチS1を介して電源１に接続されており、この高周
波発振回路２の出力側には、素子パッド30に設けられた
超音波発振体３が導線Ｌにより接続されている。The high-frequency oscillation circuit 2 is connected to a power supply 1 via an output stop switch S2 and a power switch S1, and an ultrasonic oscillator 3 provided on an element pad 30 is connected to an output side of the high-frequency oscillation circuit 2 by a conductor. L.
なお、出力停止スイッチS2は後述する制御回路７によ
り開閉制御されるスイッチで常時は閉である。また、超
音波発振体３としては、例えばジルコン酸鉛−チタン酸
鉛（PZT）系のセラミック振動子に音響整合層を一体形
成したものを用いる。The output stop switch S2 is a switch that is controlled to be opened and closed by a control circuit 7, which will be described later, and is normally closed. Further, as the ultrasonic oscillator 3, for example, a material in which an acoustic matching layer is integrally formed with a lead zirconate-lead titanate (PZT) -based ceramic vibrator is used.
さて、導線Ｌに反射波検出回路４が接続されている。
この反射波検出回路４は二つの方向性結合器が背中合わ
せに接続された回路となっており、一方の方向性結合器
41は、コンデンサC1によるＣ結合とカレント・トランス
ＴによるＭ結合により構成され、高周波発振回路２から
の進行波の信号のみが採り込まれる。また、他方の方向
性結合器42も同様に、コンデンサC2によるＣ結合と共用
のカレント・トランスＴによるＭ結合により構成されて
おり、この方向性結合器42には超音波発振体３からの反
射波の信号のみが採り込まれる。Now, the reflected wave detection circuit 4 is connected to the conducting wire L.
This reflected wave detection circuit 4 is a circuit in which two directional couplers are connected back to back, and one directional coupler is
41 is constituted by M binding by C bonds and current transformer T by the capacitors C 1, only the traveling wave signal from the high-frequency oscillation circuit 2 is incorporated taken. Similarly, the other directional coupler 42 is constituted by M binding by current transformer T of C bonds shared by the capacitor C 2, to the directional coupler 42 from the ultrasonic oscillation element 3 Only the reflected wave signal is taken.
各方向性結合器41,42においては、Ｃ結合とＭ結合と
の高周波電圧がダイオードD1またはD2により比較され、
その各高周波電圧は、電圧検出器V1またはV2によってそ
れぞれ検出される。すなわち、電圧検出器V1により高周
波発振回路２からの進行波の電圧信号Viのみが検出さ
れ、また、電圧検出器V2によって超音波発振体３からの
反射波の電圧信号Vrのみが検出される。In each directional coupler 41, a high frequency voltage between the C bond and M bonds are compared by the diode D 1 or D 2,
Each of the high-frequency voltages is detected by the voltage detector V1 or V2, respectively. That is, only the voltage signal V i of the traveling wave from the high-frequency oscillator 2 by a voltage detector V1 is detected, also, only the voltage signal V r of a reflected wave from the ultrasonic oscillation element 3 is detected by the voltage detector V2 You.
各電圧検出器V1およびV2の出力信号ViおよびVrはそれ
ぞれ除算器５に入力される。除算器５は信号Vrを信号Vi
で除した信号Vr/Viを出力して比較器６に供給する。比
較器６は、この入力信号Vr/Viと、あらかじめ設定され
た基準値を比較し、信号Vr/Viが基準値以上になったと
きに信号を発生するよう構成されており、その信号は制
御回路７に入力される。制御回路７は比較器６からの信
号が入力された時点で、LED等のランプ８を点灯し、同
時に出力停止スイッチS2をOFFとするように構成されて
いる。Output signals V i and V r of the voltage detector V1 and V2 are input to the divider 5, respectively. The divider 5 converts the signal Vr into a signal V i
In supplying to the comparator 6 outputs a divided signal V r / V i. Comparator 6, and the input signal V r / V i, comparing the preset reference value is configured to generate a signal when the signal V r / V i is equal to or greater than the reference value, The signal is input to the control circuit 7. The control circuit 7 turns on the lamp 8 such as an LED when the signal from the comparator 6 is input, and simultaneously turns off the output stop switch S2.
以上の本発明実施例によると、除算器５の出力信号
は、高周波発振回路２から超音波発振体３への進行波と
超音波発振体３による反射波との電力比（リターンロ
ス）、すなわち、高周波発振回路２側のインピーダンス
と超音波発振体３側のインピーダンスとの差に相関した
値となる。According to the embodiment of the present invention described above, the output signal of the divider 5 is the power ratio (return loss) of the traveling wave from the high-frequency oscillation circuit 2 to the ultrasonic oscillator 3 and the reflected wave from the ultrasonic oscillator 3, that is, And a value correlated with the difference between the impedance of the high-frequency oscillation circuit 2 and the impedance of the ultrasonic oscillator 3.
従って、素子パッド30と人体との密着不良によって生
じる上記インピーダンス差の許容限度に対応する信号Vr
/Viの値を、前もって調査しておき、その値をもって比
較器６の基準値としておけば、超音波発振体３を備えた
素子パッド30と人体との密着度の良否をランプ８の点灯
により知ることができる。しかも、密着不良のときに
は、高周波発振回路２の出力が自動的に停止される。ま
た、超音波発振体３と導線Ｌとの接触不良や導線Ｌ自体
の断線等が生じたときには、除算器５の出力は上記の基
準値を瞬時に超えるので、その異常をランプ８の点灯に
より知ることも可能となる。Therefore, the signal V r corresponding to the allowable limit of the impedance difference caused by the poor contact between the element pad 30 and the human body.
The value of / V i, leave previously investigated, if the reference value of the comparator 6 with the value, turns on the quality of the degree of adhesion between the element pad 30 and the human body with an ultrasonic oscillation element 3 of the lamp 8 You can know by. In addition, when the adhesion is poor, the output of the high-frequency oscillation circuit 2 is automatically stopped. Further, when a faulty contact between the ultrasonic oscillator 3 and the conductor L or a break in the conductor L itself occurs, the output of the divider 5 instantly exceeds the above-mentioned reference value. It is also possible to know.
なお、ランプ８の点灯に代えて、例えばブザー等によ
り警報を発生するように構成してもよい。Instead of turning on the lamp 8, an alarm may be generated by, for example, a buzzer.
また、以上の実施例において、比較器６は必ずしも必
要ではなく、例えば除算器５の出力信号をアナログある
いはデジタル的に表示するよう構成してもよい。この場
合、高周波発振回路２と超音波発振体３とのマッチング
状態が定量的に表示され、その表示値が一定の値を超え
るか否かで、素子パッド30の人体への密着度の良否を知
ることができる。Further, in the above embodiment, the comparator 6 is not always necessary. For example, the output signal of the divider 5 may be displayed in an analog or digital manner. In this case, the matching state between the high-frequency oscillation circuit 2 and the ultrasonic oscillator 3 is quantitatively displayed, and whether the degree of adhesion of the element pad 30 to the human body is good or not depends on whether the displayed value exceeds a certain value. You can know.
さらに、本発明実施例では、反射波検出回路４をCM型
方向性結合器を用いて構成しているが、例えばリターン
ロス・ブリッジ回路等、他の回路手段により構成しても
よい。Further, in the embodiment of the present invention, the reflected wave detection circuit 4 is configured using a CM type directional coupler, but may be configured by other circuit means such as a return loss bridge circuit.
以上は、本発明を超音波治療器に適用した例について
説明したが、本発明はこれに限られることなく、超音波
診断装置にも適用可能である。In the above, an example in which the present invention is applied to an ultrasonic treatment device has been described. However, the present invention is not limited to this, and is also applicable to an ultrasonic diagnostic apparatus.
＜発明の効果＞ 本発明によれば、高周波発振回路と超音波発振体とを
接続する配線に、その超音波発振体により反射される高
周波電力を検出する回路手段を接続したので、その回路
手段の出力から、超音波発振体を備えたパッド等と人体
との密着度の良否を知ることができ、これにより、例え
ば超音波治療器において、効率の悪い状態での治療を続
けることを防止できる。また、超音波発振体と導線との
接触不良や導線自体の断線等が生じた場合に、その異常
を知ることも可能となる。<Effects of the Invention> According to the present invention, the circuit connecting the high-frequency oscillation circuit and the ultrasonic oscillator is connected to the circuit for detecting the high-frequency power reflected by the ultrasonic oscillator. From the output, it is possible to know whether the degree of adhesion between the pad or the like provided with the ultrasonic oscillator and the human body is good, and thereby, for example, in an ultrasonic treatment device, it is possible to prevent the treatment in an inefficient state from being continued. . In addition, when a contact failure between the ultrasonic oscillator and the conductor or disconnection of the conductor itself occurs, the abnormality can be known.
図面は本発明実施例の構成を示すブロックである。 １……電源 ２……高周波発振回路 ３……超音波発振体 ４……反射波検出回路 41,42……方向性結合器 ５……除算器 ６……比較器 ８……ランプ Ｌ……導線 The drawings are blocks showing the configuration of the embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Power supply 2 ... High frequency oscillation circuit 3 ... Ultrasonic oscillator 4 ... Reflected wave detection circuit 41, 42 ... Directional coupler 5 ... Divider 6 ... Comparator 8 ... Lamp L ... Conductor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 川野 栄三 大阪府茨木市下穂積１丁目１番２号 日 東電工株式会社内 (72)発明者 谷口 剛史 大阪府茨木市下穂積１丁目１番２号 日 東電工株式会社内 (72)発明者 金原 松郎 大阪府茨木市下穂積１丁目１番２号 日 東電工株式会社内 (56)参考文献 特開 昭63−15952（ＪＰ，Ａ) 実開 平２−58416（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Eizo Kawano 1-1-2 Shimohozumi, Ibaraki-shi, Osaka Nippon Denko Corporation (72) Inventor Takeshi Taniguchi 1-1-1-2 Shimohozumi, Ibaraki-shi, Osaka (1) 1-2, Shimohozumi, Ibaraki-shi, Osaka, Japan Nippon Denko Co., Ltd. (56) References JP-A-63-15952 (JP, A) Hei 2-58416 (JP, U)
Claims (1)
続される超音波発振体を有し、その超音波発振体を、被
治療体の患部等にあてがい、上記高周波発振回路からの
高周波により振動させることによって、被治療体に超音
波を照射する機器において、上記高周波発振回路と上記
超音波発振体を接続する導線に、上記超音波発振体によ
って反射される高周波電力を検出するための回路手段を
接続したことを特徴とする、超音波機器。A high-frequency oscillation circuit and an ultrasonic oscillator electrically connected to the circuit, the ultrasonic oscillator is applied to an affected part of a treatment target, and the high-frequency oscillation from the high-frequency oscillation circuit is applied. By vibrating by, in a device that irradiates ultrasonic waves to the object to be treated, to the conductor connecting the high-frequency oscillation circuit and the ultrasonic oscillator, for detecting high-frequency power reflected by the ultrasonic oscillator An ultrasonic device comprising circuit means connected thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200793A JP2659591B2 (en) | 1989-08-02 | 1989-08-02 | Ultrasonic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200793A JP2659591B2 (en) | 1989-08-02 | 1989-08-02 | Ultrasonic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0363054A JPH0363054A (en) | 1991-03-19 |
| JP2659591B2 true JP2659591B2 (en) | 1997-09-30 |
Family
ID=16430283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1200793A Expired - Lifetime JP2659591B2 (en) | 1989-08-02 | 1989-08-02 | Ultrasonic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2659591B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3816960B2 (en) | 1997-05-15 | 2006-08-30 | 松下電工株式会社 | Ultrasonic equipment |
| US7567232B2 (en) | 2001-03-09 | 2009-07-28 | Immersion Corporation | Method of using tactile feedback to deliver silent status information to a user of an electronic device |
| JP2005514681A (en) | 2001-10-23 | 2005-05-19 | イマージョン コーポレーション | Method of using haptic feedback by communicating a static state to a user of an electronic device |
-
1989
- 1989-08-02 JP JP1200793A patent/JP2659591B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0363054A (en) | 1991-03-19 |
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