JPH01107745A - Fetus monitor - Google Patents
Fetus monitorInfo
- Publication number
- JPH01107745A JPH01107745A JP62265058A JP26505887A JPH01107745A JP H01107745 A JPH01107745 A JP H01107745A JP 62265058 A JP62265058 A JP 62265058A JP 26505887 A JP26505887 A JP 26505887A JP H01107745 A JPH01107745 A JP H01107745A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- probe
- fetus
- monitoring device
- supersonic
- 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.)
- Granted
Links
- 210000003754 fetus Anatomy 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 37
- 210000001215 vagina Anatomy 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000002604 ultrasonography Methods 0.000 claims description 29
- 238000012806 monitoring device Methods 0.000 claims description 15
- 230000001605 fetal effect Effects 0.000 claims description 14
- 210000002458 fetal heart Anatomy 0.000 claims description 7
- 230000000474 nursing effect Effects 0.000 claims description 6
- 230000008321 arterial blood flow Effects 0.000 claims description 2
- 210000001841 basilar artery Anatomy 0.000 abstract description 2
- 210000001715 carotid artery Anatomy 0.000 abstract description 2
- 230000003321 amplification Effects 0.000 abstract 1
- 239000008280 blood Substances 0.000 abstract 1
- 210000004369 blood Anatomy 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 210000003815 abdominal wall Anatomy 0.000 description 2
- 210000003679 cervix uteri Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035935 pregnancy Effects 0.000 description 2
- 230000000541 pulsatile effect Effects 0.000 description 2
- 210000004291 uterus Anatomy 0.000 description 2
- 208000036830 Normal foetus Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 210000001691 amnion Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、妊産婦の行動を一切拘束せずに妊娠中期から
後期にかけての胎児心拍数を連続監視する胎児監視装置
に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fetal monitoring device that continuously monitors the fetal heart rate from the middle to late stages of pregnancy without restricting the movements of expectant and nursing mothers.
（従来の技術）
従来から、超音波技術を使って胎児心拍数の連続監視を
行う胎児監視装置は知られている。該監視装置は妊産婦
の腹壁上に超音波探触子を設置し、その超−音波探触子
で検出される信号から胎児の動脈血流に塁づくドプラシ
フト信号を得、これから胎児心拍数を記録し、連続監視
する構成となっている。(Prior Art) Fetal monitoring devices that continuously monitor fetal heart rate using ultrasound technology have been known. This monitoring device places an ultrasound probe on the abdominal wall of a pregnant woman, obtains a Doppler shift signal based on the arterial blood flow of the fetus from the signal detected by the ultrasound probe, and records the fetal heart rate from this signal. It is configured for continuous monitoring.
この様な胎児監視装置によれば、胎児心拍動のみに関連
した信号を得ることが容易なので、Ｎ５Ｔ（ｎｏｎ−ｓ
ｔｒｅｓｓ−ｔｅｓｔ：胎児の健康状態を評価するため
に胎児心拍数の連続モニタを行うこと）、又は、妊産婦
の行動を一切拘束せずに在宅監視を行うことができる。According to such a fetal monitoring device, it is easy to obtain signals related only to fetal heartbeat, so N5T (non-s
tress-test: continuous monitoring of the fetal heart rate to assess the health of the fetus), or home monitoring without any restriction on the mother's movements.
（発明が解決しようとする問題点）
しかし゛、従来の胎児監視装置にあっては、超音波探触
子を妊産婦の腹壁上に設置しているため、妊産婦の歩行
のときの腹部の動きによって、超音波探触子の超音波送
受波面と腹部とのカップリングが不安定になり、信号が
乱れると言う問題がある。(Problems to be Solved by the Invention) However, in conventional fetal monitoring devices, the ultrasound probe is installed on the abdominal wall of the pregnant woman, and therefore There is a problem in that the coupling between the ultrasonic wave transmitting/receiving surface of the ultrasonic probe and the abdomen becomes unstable, resulting in signal disturbance.
本発明は、かかる点に鑑みてなされたものであり、その
目的は、歩行等によって妊産婦が動く場合においても、
乱れのない信号を連続的に得ることができる胎児監視装
置を実現するにある。The present invention has been made in view of these points, and its purpose is to
The object of the present invention is to realize a fetal monitoring device that can continuously obtain undisturbed signals.
（問題点を解決するための手段）
上記目的を達成する本発明の胎児監視装置は、超音波探
触子が水密構造の偏平な筒状の外形で、短軸に略平行な
方向に超音波ビー云の送受波を行う構成をなし、妊産婦
の膣の奥深くにて被検胎児の先進部に超音波送受波面を
向けて設置され、所望の信号を検出するようになってい
る。(Means for Solving the Problems) In the fetal monitoring device of the present invention, which achieves the above object, the ultrasonic probe has a flat cylindrical outer shape with a watertight structure, and the ultrasonic probe transmits ultrasonic waves in a direction substantially parallel to the short axis. It is configured to transmit and receive beacon waves, and is installed deep inside the vagina of a pregnant woman with the ultrasound transmitting and receiving wave surface facing the advanced part of the fetus to be examined, so as to detect a desired signal.
〈作用）
筒状外形の超音波探触子は膣内の所定の箇所に安定に設
置される。しかも、超音波探触子はあたかも塩水の中に
浸されたような状態の下で超音波の送受波を行う。即ち
、超音波探触子は膣内設置に適した構成をなし、かつ、
液体を介して超音波送受波面と被検胎児とのカップリン
グを実現している。従って、妊産婦の歩行等（母体の動
き）によって信号検出が影響されることがない。<Function> The cylindrical external ultrasound probe is stably installed at a predetermined location within the vagina. Moreover, the ultrasonic probe transmits and receives ultrasonic waves under conditions as if it were immersed in salt water. That is, the ultrasound probe has a configuration suitable for installation in the vagina, and
Coupling between the ultrasound transmitting/receiving wave surface and the fetus to be examined is achieved via liquid. Therefore, signal detection is not affected by the walking of the pregnant and nursing mother (movement of the mother's body).
′ （実施例） 以下、本発明について図面を参照して詳細に説明する。' (Example) Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図乃至第３図は本発明の一実施例による胎児監視装
置を示す構成図であり、第１図は超音波探触子（テレメ
ータカプセル）の外形図、第２図は超音波探触子内に収
納される電気回路の構成図、第３図は超音波探触子から
の電気信号を装置本体（図示せず）に中継する電気回路
の構成図である。第１図において、超音波探触子１は水
密構造の偏平な筒状をなし、筒の一方の平坦面に配置さ
れる半円状の２個の振動子２及び３と、筒の側壁から引
出されるアンテナ４をそれぞれ有する。撮動子２及び３
は筒の短軸に略平行な方向に超音波ビームの送受波を行
う。超音波探触子１に収納される回路は、第２図に示す
ように振動子２をＣＷ倍信号超音波駆動する発振器５と
、振動子３で受信される信号゛からドプラシフト信号を
求めるドプラ受信部６と、ドプラシフト信号を数ＨＨｚ
〜十数ＭＨｚで周波数変調してアンテナ４に送出するテ
レメータ送信部７と、筒内の各回路を駆動する電源部８
とで構成される。ドプラ受信部６は受信信号からドプラ
シフト信号を求める回路、低域をカットするドプラフィ
ルタ（ウオールフィルタ）、検波回路、ローパスフィル
タ等（いずれも図示せず）を有する。一方、中継回路は
、第３図に示すようにアンテナ４からの電波を受信する
バーアンテナ９と、バーアンテナ９で受信された信号を
増幅する高周波アンプ１０と、高周波アンプ１０の出力
を整形するＡＧＯリミッタ１１と、発振器１２からの信
号を参照信号としてＡＧＣリミッタ１１からの信号を復
調するミキサ１３と、復調信号から目的の周波数のみを
抽出するバンドパスフィルタ１４と、バンドパスフィル
タ１４の出力を増幅してアンテナ１５に送出するバッフ
７アンプ（アンテナドライバアンプ）１６とで構成され
る。1 to 3 are configuration diagrams showing a fetal monitoring device according to an embodiment of the present invention, FIG. 1 is an external view of an ultrasound probe (telemeter capsule), and FIG. FIG. 3 is a block diagram of an electric circuit housed in the probe, and FIG. 3 is a block diagram of an electric circuit that relays an electric signal from the ultrasonic probe to the main body of the apparatus (not shown). In FIG. 1, an ultrasonic probe 1 has a flat cylindrical shape with a watertight structure, and includes two semicircular transducers 2 and 3 disposed on one flat surface of the tube, and a side wall of the tube. Each has an antenna 4 that can be pulled out. Camera elements 2 and 3
transmits and receives ultrasonic beams in a direction approximately parallel to the short axis of the tube. As shown in FIG. 2, the circuit housed in the ultrasonic probe 1 includes an oscillator 5 that drives the transducer 2 with CW multiplied signal ultrasonic waves, and a Doppler oscillator that generates a Doppler shift signal from the signal received by the transducer 3. The receiver 6 and the Doppler shift signal at several Hz
A telemeter transmitter 7 that modulates the frequency at ~10-odd MHz and sends it to the antenna 4, and a power supply unit 8 that drives each circuit inside the cylinder.
It consists of The Doppler receiving section 6 includes a circuit for obtaining a Doppler shift signal from a received signal, a Doppler filter (wall filter) for cutting low frequencies, a detection circuit, a low-pass filter, etc. (all not shown). On the other hand, the relay circuit includes a bar antenna 9 that receives radio waves from the antenna 4, a high frequency amplifier 10 that amplifies the signal received by the bar antenna 9, and shapes the output of the high frequency amplifier 10, as shown in FIG. An AGO limiter 11, a mixer 13 that demodulates the signal from the AGC limiter 11 using the signal from the oscillator 12 as a reference signal, a bandpass filter 14 that extracts only the desired frequency from the demodulated signal, and an output of the bandpass filter 14. It is composed of a buffer 7 amplifier (antenna driver amplifier) 16 that amplifies the signal and sends it to the antenna 15.
又、装置本体（図示せず）はアンテナ１５からの電波を
受信するアンテナ、該アンテナの受信信号を増幅する増
幅器、増幅された信号を記録する記録計等で構成される
。尚、中継回路と本体装置間の伝送はＶＩＩＦ帯又はＵ
ＩＩＦ帯で行われる。The device main body (not shown) includes an antenna that receives radio waves from the antenna 15, an amplifier that amplifies the signal received by the antenna, a recorder that records the amplified signal, and the like. Furthermore, transmission between the relay circuit and the main unit is via VIIF band or U
It is carried out in the IIF band.
以上の構成において、超音波探触子１は第４図（妊娠満
期に近い女の骨盤の正中矢状断面図）に示すように、妊
産婦１７のｌ１１１８の奥深い位置にて、超音波送受波
面（振動子２及び３）を被検胎児１９の先進部（正常な
胎児の場合には頭部を指す）に向けて設置される。又、
中継回路（第３図の回路）は妊産婦に携帯され、装置本
体は妊産婦の行動範囲又はその近傍に設置される。撮動
子２から送波されるＣＷ超音波は、被検胎児１９の先進
部（頭部）に照射され、脳底動脈又は頚動脈の血流成分
を含んだ超音波が振動子３に受波されドプラ受信部６に
与えられる。ドプラ受信部６の出力は、ドプラフィルタ
によって低域が充分カットされた（体動による成分が除
去される）拍動性ドプラシフト信号となる。上記拍動性
ドプラシフト信号がテレメータ送信部７で周波数変調さ
れ、アンテナ４から送出される。母体内（アンテナ４）
からの電波はバーアンテナ９で受信され、中継回路内で
復調され、増幅された後、アンテナ１５から送出される
。アンテナ１５からの電波が装置本体のアンテナで受信
され連続記録される。これにより、妊産婦の胎児心拍数
が連続的に監視される。In the above configuration, as shown in FIG. 4 (a mid-sagittal cross-sectional view of the pelvis of a woman near term of pregnancy), the ultrasound probe 1 is installed at a deep position in l1118 of the pregnant woman 17 on the ultrasound transmission/reception wave surface ( The transducers 2 and 3) are placed toward the advanced part of the fetus 19 to be examined (in the case of a normal fetus, this refers to the head). or,
The relay circuit (the circuit shown in FIG. 3) is carried by the expectant and nursing mother, and the main body of the device is installed in or near the area of movement of the expectant and nursing mother. The CW ultrasound transmitted from the camera element 2 is irradiated to the advanced part (head) of the fetus 19 to be examined, and the ultrasound containing blood flow components of the basilar artery or carotid artery is received by the transducer 3. and is given to the Doppler receiving section 6. The output of the Doppler receiver 6 becomes a pulsatile Doppler shift signal whose low frequency is sufficiently cut by the Doppler filter (components due to body movement are removed). The above-mentioned pulsatile Doppler shift signal is frequency-modulated by the telemeter transmitter 7 and transmitted from the antenna 4. Inside the mother body (antenna 4)
Radio waves are received by the bar antenna 9, demodulated and amplified within the relay circuit, and then sent out from the antenna 15. Radio waves from the antenna 15 are received by the antenna of the main body of the device and are continuously recorded. This allows the fetal heart rate of the pregnant woman to be continuously monitored.
尚、上記実施例において、超音波探触子１がアンテナ４
を筒の外部に引出す構成となっているが、以下の構成を
とることも可能である。周波数変調の帯域が上記実施例
の数ＨＨ７〜十数ＨＨ２であれば、インダクティブカッ
プリングで充分な結合度がとれるので、超音波探触子の
筒内及び中継回路のケース内に同調をとった空心コイル
又はバーアンテナ、ループアンテナを内蔵させてもよい
。又、妊産婦は、中継回路に代えてテープレコーダを携
帯し、超音波探触子１からの信号の記録をとる方式、い
わゆるストアトテレメトリ一方式で所望の信号の記録を
とることもできる。更に、超音波探触子１を、子宮頚管
２ｏや子宮内の各位置２１．２２又は２３（いずれも第
３図参照）に設置し、超音波送受波面を所定の方向に向
けて所望の超音波信号を得ることが可能である。超音波
探触子１を上記子宮内の各位置に設置する場合、超音波
探触子１は羊膜と子宮壁との間に設置される。In the above embodiment, the ultrasonic probe 1 is connected to the antenna 4.
Although the structure is such that it is drawn out of the cylinder, the following structure is also possible. If the frequency modulation band is from several HH7 to more than ten HH2 as in the above embodiment, sufficient coupling can be achieved with inductive coupling, so tuning was achieved within the cylinder of the ultrasonic probe and within the case of the relay circuit. An air-core coil, bar antenna, or loop antenna may be incorporated. Further, the pregnant woman can also carry a tape recorder instead of the relay circuit and record desired signals using a method of recording signals from the ultrasound probe 1, ie, a so-called stored telemetry method. Furthermore, the ultrasound probe 1 is installed at each position 21, 22 or 23 in the uterine cervix 2o or the uterus (see Fig. 3), and the ultrasound transceiver wave surface is directed in a predetermined direction to obtain the desired result. It is possible to obtain ultrasound signals. When the ultrasound probe 1 is installed at each position in the uterus, the ultrasound probe 1 is installed between the amniotic membrane and the uterine wall.
（発明の効果）
以上説明の通り、本発明の胎児監視装置によれば、超音
波探触子は妊産婦の膣の奥深くに設置するのに適した構
成をなし、かつ、液体を介して超音波送受波面と被検胎
児とのカップリングを実現しているため、妊産婦の歩行
等（母体の動き）によって信号検出が影響されることが
なく、乱れのない胎児心拍数を連続監視することができ
る。(Effects of the Invention) As explained above, according to the fetal monitoring device of the present invention, the ultrasound probe has a configuration suitable for being installed deep inside the vagina of a pregnant woman, and the ultrasound probe transmits ultrasound waves through liquid. Since the transmitting/receiving wave surface is coupled to the fetus under test, signal detection is not affected by the walking of the expectant and nursing mother (movement of the mother's body), making it possible to continuously monitor the undisturbed fetal heart rate. .
第１図は本発明の一実施例における超音波探触子の外形
を示す構成図、第２図は本発明の一実施例における超音
波探触子内に収納される電気回路を示す構成図、第３図
は本発明の一実施例における信号の中継回路を示す構成
図、第４図は本発明の一実施例における超音波探触子の
設置状態の説明図である。
１・・・超音波探触子、２及び３・・・振動子、４及び
１５・・・アンテナ、５及び１２・・・発振器、６・・
・ドプラ受信部、７・・・テレメータ送信部、８・・・
電源部、９・・・バーアンテナ、１０・・・高周波アン
プ、１１・・・ＡＧＣリミッタ、１３・・・ミキサ、１
４・・・バンドパスフィルタ、１６・・・バッファアン
プ、１７・・・母体、１８・・・膣、１９・・・胎児、
２０・・・子宮頚管。FIG. 1 is a configuration diagram showing the external shape of an ultrasonic probe according to an embodiment of the present invention, and FIG. 2 is a configuration diagram showing an electric circuit housed within the ultrasound probe according to an embodiment of the present invention. , FIG. 3 is a block diagram showing a signal relay circuit according to an embodiment of the present invention, and FIG. 4 is an explanatory diagram of an installed state of an ultrasonic probe according to an embodiment of the present invention. 1... Ultrasonic probe, 2 and 3... Vibrator, 4 and 15... Antenna, 5 and 12... Oscillator, 6...
- Doppler receiving section, 7... Telemeter transmitting section, 8...
Power supply section, 9... Bar antenna, 10... High frequency amplifier, 11... AGC limiter, 13... Mixer, 1
4... Band pass filter, 16... Buffer amplifier, 17... Mother's body, 18... Vagina, 19... Fetus,
20...cervix.
Claims (4)
血流に基づくドプラ信号を得て、胎児心拍数の連続監視
をする胎児監視装置において、前記超音波探触子は水密
構造の偏平な筒状の外形で、短軸に略平行な方向に超音
波ビームの送受波を行うように構成され、妊産婦の膣の
奥深くにて被検胎児の先進部に超音波送受波面を向けて
設置され、所望の信号を検出することを特徴とする胎児
監視装置。(1) In a fetal monitoring device that continuously monitors the fetal heart rate by obtaining a Doppler signal based on the arterial blood flow of the fetus from an ultrasound probe installed on the pregnant woman, the ultrasound probe has a watertight structure. It has a flat cylindrical outer shape and is configured to transmit and receive ultrasound beams in a direction approximately parallel to the short axis, with the ultrasound transmission and reception wave surface directed toward the advanced part of the fetus to be examined deep inside the pregnant woman's vagina. A fetal monitoring device characterized in that it is installed and detects a desired signal.
送系を構成することを特徴とする特許請求の範囲第１項
記載の胎児監視装置。(2) The fetal monitoring device according to claim 1, wherein the ultrasound probe constitutes a wireless transmission system with the main body of the monitoring device.
ことを特徴とする特許請求の範囲第２項記載の胎児監視
装置。(3) The fetal monitoring device according to claim 2, wherein the ultrasound probe is equipped with a wireless transmission means.
段を備えることを特徴とする特許請求の範囲第２項記載
の胎児監視装置。(4) The fetal monitoring device according to claim 2, wherein the wireless transmission system includes a wireless relay means to be carried by the expectant and nursing mother.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62265058A JPH01107745A (en) | 1987-10-20 | 1987-10-20 | Fetus monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62265058A JPH01107745A (en) | 1987-10-20 | 1987-10-20 | Fetus monitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01107745A true JPH01107745A (en) | 1989-04-25 |
| JPH0331454B2 JPH0331454B2 (en) | 1991-05-07 |
Family
ID=17411997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62265058A Granted JPH01107745A (en) | 1987-10-20 | 1987-10-20 | Fetus monitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01107745A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008510508A (en) * | 2004-08-21 | 2008-04-10 | マギル・ユニヴァーシティ | Method and apparatus for analyzing amniotic fluid |
| WO2008108015A1 (en) * | 2007-03-06 | 2008-09-12 | Kobe Material Testing Laboratory Co., Ltd. | Ultrasonic probe for intravascular diagnosis and method for manufacturing the same |
| JP2009172014A (en) * | 2008-01-21 | 2009-08-06 | Konica Minolta Medical & Graphic Inc | Ultrasonic diagnostic apparatus |
| US7577476B2 (en) * | 2001-10-26 | 2009-08-18 | Athena Feminine Technologies, Inc | System and method for transducing, sensing, or affecting vaginal or body conditions, and/or stimulating perineal musculature and nerves using 2-way wireless communications |
| JP2010504829A (en) * | 2006-09-29 | 2010-02-18 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Hands-free ultrasonic diagnostic method and apparatus |
| WO2021024709A1 (en) * | 2019-08-02 | 2021-02-11 | 学校法人慈恵大学 | Ultrasonic imaging system and ultrasonic imaging device |
-
1987
- 1987-10-20 JP JP62265058A patent/JPH01107745A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7577476B2 (en) * | 2001-10-26 | 2009-08-18 | Athena Feminine Technologies, Inc | System and method for transducing, sensing, or affecting vaginal or body conditions, and/or stimulating perineal musculature and nerves using 2-way wireless communications |
| US7957794B2 (en) | 2001-10-26 | 2011-06-07 | Athena Feminine Technology | System and method for transducing, sensing, or affecting vaginal or body conditions, and/or stimulating perineal musculature and nerves using 2-way wireless communications |
| JP2008510508A (en) * | 2004-08-21 | 2008-04-10 | マギル・ユニヴァーシティ | Method and apparatus for analyzing amniotic fluid |
| JP2010504829A (en) * | 2006-09-29 | 2010-02-18 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Hands-free ultrasonic diagnostic method and apparatus |
| WO2008108015A1 (en) * | 2007-03-06 | 2008-09-12 | Kobe Material Testing Laboratory Co., Ltd. | Ultrasonic probe for intravascular diagnosis and method for manufacturing the same |
| JP2009172014A (en) * | 2008-01-21 | 2009-08-06 | Konica Minolta Medical & Graphic Inc | Ultrasonic diagnostic apparatus |
| WO2021024709A1 (en) * | 2019-08-02 | 2021-02-11 | 学校法人慈恵大学 | Ultrasonic imaging system and ultrasonic imaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0331454B2 (en) | 1991-05-07 |
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