JPH0233254B2 - - Google Patents
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- Publication number
- JPH0233254B2 JPH0233254B2 JP59162717A JP16271784A JPH0233254B2 JP H0233254 B2 JPH0233254 B2 JP H0233254B2 JP 59162717 A JP59162717 A JP 59162717A JP 16271784 A JP16271784 A JP 16271784A JP H0233254 B2 JPH0233254 B2 JP H0233254B2
- Authority
- JP
- Japan
- Prior art keywords
- fetal
- signal
- labor
- heart rate
- fetal movement
- 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
Links
- 230000001605 fetal effect Effects 0.000 claims description 75
- 230000033001 locomotion Effects 0.000 claims description 74
- 210000002458 fetal heart Anatomy 0.000 claims description 20
- 210000003754 fetus Anatomy 0.000 claims description 14
- 208000007914 Labor Pain Diseases 0.000 claims description 12
- 208000035945 Labour pain Diseases 0.000 claims description 12
- 238000012806 monitoring device Methods 0.000 claims description 12
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 10
- 230000003321 amplification Effects 0.000 description 7
- 238000003199 nucleic acid amplification method Methods 0.000 description 7
- 239000003550 marker Substances 0.000 description 6
- 230000035935 pregnancy Effects 0.000 description 6
- 210000003815 abdominal wall Anatomy 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035606 childbirth Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000009532 heart rate measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009662 stress testing Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 208000001362 Fetal Growth Retardation Diseases 0.000 description 1
- 206010070531 Foetal growth restriction Diseases 0.000 description 1
- 208000036818 High risk pregnancy Diseases 0.000 description 1
- 208000001871 Tachycardia Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000030941 fetal growth restriction Diseases 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 201000011461 pre-eclampsia Diseases 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000006794 tachycardia Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Landscapes
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は分娩監視装置、更に詳しくは、胎児心
拍数、胎動及び陣痛を自動的に且つ同時記録でき
る機能を備えた分娩監視装置に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a labor monitoring device, and more particularly, to a labor monitoring device having a function of automatically and simultaneously recording fetal heart rate, fetal movements, and labor pains. be.
分娩監視装置は、分娩進行中の胎児の異常の有
無を監視する装置であり、胎児心拍数と陣痛との
関係が臨床上有用とされ多用されてきた。
A labor monitoring device is a device that monitors the presence or absence of abnormalities in a fetus during labor, and has been widely used because the relationship between fetal heart rate and labor pains is clinically useful.
また、胎動は胎児の生存状態を示す重要な指標
として古くから注目されており、この胎動を数え
る手段としては、例えば特開昭58−94841号公報
に開示されている発明のように、ドプラ信号を用
いる方法がある。 In addition, fetal movements have been attracting attention for a long time as an important indicator of the survival status of the fetus, and as a means of counting these fetal movements, Doppler signal There is a method using
さらに最近では、妊娠中の胎児の状態を知るた
めに、胎動と胎児心拍数との関係を調べるノンス
トレス・テスト（NST）が研究されている。 More recently, non-stress testing (NST), which examines the relationship between fetal movements and fetal heart rate, has been studied to determine the condition of the fetus during pregnancy.
これは、妊娠中期以降の妊婦について、分娩監
視装置により胎児心拍数を記録し、記録中に妊婦
が胎動を自覚したときにこれを自覚胎動として胎
児心拍数記録にマーキングし、その関連関係とし
て、胎動に伴う一過性頻脈の有無を調べるもので
ある。このNSTは、妊娠中期以降の陣痛のない
状態でも、胎児の状態の情報を得られるものとし
て注目されている。 This system records the fetal heart rate of pregnant women after the second trimester of pregnancy using a delivery monitoring device, and when the pregnant woman becomes aware of fetal movements during the recording, this is marked on the fetal heart rate record as a conscious fetal movement.As a related relationship, This test examines the presence or absence of transient tachycardia associated with fetal movements. NST is attracting attention as a means of obtaining information about the condition of the fetus even in the absence of labor after the second trimester.
以上のように、従来においては、胎児心拍数と
陣痛とを記録し、両者の関係から分娩進行中の胎
児の異常の有無を監視する装置や、或いは胎動を
検出し、その胎動数により胎児の状態を判断する
方法及び装置などが使用されていた。
As mentioned above, conventionally, there are devices that record fetal heart rate and labor pains, and monitor the presence or absence of abnormalities in the fetus during delivery based on the relationship between the two, or detect fetal movements and use the number of fetal movements to monitor the fetal abnormality. Methods and devices for determining the condition were used.
しかし、これらの従来装置では、単独の胎動情
報、或いは陣痛と胎児心拍数との関連情報が得ら
れるのみであつて、妊娠中の胎児についての十分
な情報を得ることができなかつた。すなわち、妊
娠中の胎児についてはNSTが重要であるが、単
独に胎児情報を得るだけでは胎児心拍数との関連
は何も判らず、NSTを実施することは全く不可
能である。 However, with these conventional devices, only information on fetal movements or information related to labor pains and fetal heart rate can be obtained, but sufficient information about the fetus during pregnancy cannot be obtained. In other words, NST is important for a fetus during pregnancy, but simply obtaining fetal information alone does not reveal any relationship with the fetal heart rate, and it is completely impossible to perform NST.
また、従来の分娩監視装置によつても、胎動は
自覚胎動だけであるので、NSTで必要とする胎
動、すなわち妊婦が感じない胎動の存在が不明で
あるために、十分なNSTを実施することができ
なかつた。 In addition, even with conventional birth monitoring devices, only the conscious fetal movements are detected, so the presence of fetal movements required for NST, that is, fetal movements that the pregnant woman does not feel, is unknown, so it is necessary to perform sufficient NST. I couldn't do it.
更に、分娩期においても、陣痛のない場合、或
いは少ない場合には、NSTが胎児の状態を知る
有力な情報となるのであるが、従来の装置によつ
てはこれを得ることができなかつた。 Furthermore, during the delivery period, when there are no or few contractions, NST provides powerful information about the condition of the fetus, but this has not been possible with conventional devices.
すなわち、子宮内胎児発育遅延や妊娠中毒症な
どのハイリスク妊娠の管理上必須の診断手段であ
るノンストレス・テストにおいて、胎動だけでは
単なる参考情報にすぎず、胎児の健康状態を評価
するためには、妊娠進行に伴う胎動数の変化や胎
動と胎児心拍数の一過性増加との関係の推移を調
べることが必要であるとされているにも拘らず、
従来の装置ではこれを十分に実現することができ
なかつた。 In other words, in non-stress testing, which is an essential diagnostic tool for managing high-risk pregnancies such as intrauterine growth retardation and preeclampsia, fetal movements alone are only reference information and are not used to evaluate the health condition of the fetus. Despite the fact that it is necessary to investigate changes in the number of fetal movements as pregnancy progresses and the relationship between fetal movements and transient increases in fetal heart rate,
Conventional devices have not been able to fully realize this.
本発明は、上記の如き医学的見解を基礎として
開発したものであり、その要旨は、超音波を妊産
婦の体表から入射する送信手段と、妊産婦体内で
反射された超音波を受信して電気信号に変換しこ
れを受信信号として出力する受信手段と、該受信
信号から胎児の心拍動成分と胎児の運動（胎動）
成分とを選択的に分離抽出するそれぞれの抽出手
段と、該心拍動成分から胎児心拍数を計測し胎児
心拍数信号を出力する胎児心拍数計測手段と、前
記胎動成分を処理して胎動信号を出力する胎動信
号処理手段と、陣痛を計測し陣痛信号を出力する
陣痛計測手段と、記録手段とを具備したことを特
徴とする分娩監視装置にある。
The present invention was developed based on the above-mentioned medical opinion, and its gist is that it includes a transmitting means that injects ultrasound waves from the body surface of a pregnant woman, and a transmitting means that receives ultrasound waves reflected within the body of a pregnant woman and generates electricity. a receiving means for converting into a signal and outputting it as a received signal, and detecting fetal heartbeat components and fetal movements (fetal movements) from the received signal;
a fetal heart rate measuring means that measures the fetal heart rate from the heartbeat component and outputs a fetal heart rate signal; and a fetal heart rate measuring device that processes the fetal movement component to generate a fetal movement signal. A labor monitoring device characterized by comprising: a fetal movement signal processing means for outputting a fetal movement signal; a labor measurement means for measuring labor pains and outputting a labor signal; and a recording means.
以下本発明を、図面に示す実施例により詳細に
説明すると、１は超音波振動子で、妊産婦の腹壁
上にテープまたはベルトなどで固定されている。
The present invention will be described in detail below with reference to embodiments shown in the drawings. Reference numeral 1 denotes an ultrasonic transducer, which is fixed on the abdominal wall of a pregnant woman with a tape or a belt.
２は超音波送信回路で、腹壁上から妊産婦の体
内に向け超音波を送信すると、この超音波の一部
は体内の組織やその界面などから反射し、ふたた
び体表面にかえつてくる。 Reference numeral 2 is an ultrasonic transmitting circuit, which transmits ultrasonic waves from the abdominal wall into the pregnant woman's body, and some of these ultrasonic waves are reflected from internal tissues and their interfaces and return to the body surface.
３は超音波受信回路で、上記反射波による情報
を受信、増幅し、検波回路４へ送る。このとき界
面などが運動していると、ドプラ効果によつて周
波数が偏移した受信波と送信波との差の周波数成
分を有する信号（以下ドプラ信号と称する）を検
波回路４から得ることができる。 3 is an ultrasonic receiving circuit which receives and amplifies information from the reflected waves and sends it to a detection circuit 4. If the interface or the like is moving at this time, it is possible to obtain from the detection circuit 4 a signal (hereinafter referred to as a Doppler signal) having a frequency component corresponding to the difference between the received wave and the transmitted wave, whose frequency is shifted due to the Doppler effect. can.
ドプラ信号の周波数は、運動体の運動速度Ｖ、
超音波周波数Ｆ、超音波速度Ｃおよび入射角度Θ
によつて変わり、上述の場合には、得られるドプ
ラ信号の周波数Fdは近似的に、
Fd≒Ｆ×（2V×COSΘ）／Ｃとなる。 The frequency of the Doppler signal is the motion velocity V of the moving body,
Ultrasonic frequency F, ultrasonic velocity C and incident angle Θ
In the above case, the frequency Fd of the obtained Doppler signal is approximately Fd≈F×(2V×COSΘ)/C.
すなわち、運動速度に対応した周波数のドプラ
信号が現れる。 That is, a Doppler signal with a frequency corresponding to the motion speed appears.
上記検波回路４から得られるドプラ信号には、
妊産婦の動きによるものと、胎動によるもの、ま
た胎児の心拍動によるものが含まれている。 The Doppler signal obtained from the detection circuit 4 includes:
These include those caused by the movements of the pregnant woman, those caused by fetal movements, and those caused by the fetal heartbeat.
例えば一例として、2MHzの超音波でドプラ効
果により運動を検出すると、妊産婦の動きによる
信号は０〜10Hzに、また胎児の心拍動による信号
（以下心拍動信号と称する）は100Hz以上に分布す
る。これに対して、胎動による信号（以下胎動信
号と称する）は20Hz〜60Hzに存在する。 For example, when motion is detected using 2MHz ultrasound using the Doppler effect, signals due to the movement of the pregnant woman are distributed in the range of 0 to 10Hz, and signals due to the heartbeat of the fetus (hereinafter referred to as heartbeat signals) are distributed over 100Hz. On the other hand, signals due to fetal movements (hereinafter referred to as fetal movement signals) exist in the range of 20Hz to 60Hz.
超音波の周波数は任意の周波数でよいが、周波
数に比例してドプラ周波数は変化するため、ここ
では2MHzの場合を例として説明するが、本発明
はこの周波数に限定されないことは勿論である。 The frequency of the ultrasound may be any frequency, but since the Doppler frequency changes in proportion to the frequency, the case of 2 MHz will be explained here as an example, but it goes without saying that the present invention is not limited to this frequency.
上記ドプラ信号を、胎動信号用フイルタ５で胎
動による信号成分だけをとりだした後これを胎動
信号検波回路６で検波し、胎動信号増幅回路７で
増幅する。 The fetal movement signal filter 5 extracts only the signal component due to fetal movement from the Doppler signal, which is then detected by a fetal movement signal detection circuit 6 and amplified by a fetal movement signal amplification circuit 7.
前記胎動信号用フイルタ５は、胎児の心拍動か
ら発生する高い周波数成分と、妊産婦の腹壁又は
生体内部で発生する内臓の動きから発生する低い
周波数を遮断できるものである。 The fetal movement signal filter 5 is capable of blocking high frequency components generated from the heartbeat of the fetus and low frequencies generated from the abdominal wall of the expectant mother or the movement of internal organs inside the living body.
胎動信号増幅回路７で増幅された胎動信号は、
電圧比較回路８で胎動基準電圧と比較され、大き
い場合は３チヤンネル記録器９のマーカ部へ胎動
マーカ信号として出力される。 The fetal movement signal amplified by the fetal movement signal amplification circuit 7 is
It is compared with the fetal movement reference voltage in the voltage comparison circuit 8, and if it is larger, it is outputted to the marker section of the 3-channel recorder 9 as a fetal movement marker signal.
胎動基準電圧は胎動基準電圧設定回路１０で作
られ、胎動以外の雑音信号では胎動マーカ信号が
出力されないように雑音信号より大きい電圧が設
定される。 The fetal movement reference voltage is generated by the fetal movement reference voltage setting circuit 10, and is set to a voltage higher than the noise signal so that the fetal movement marker signal will not be output when there is a noise signal other than the fetal movement.
胎動信号増幅回路７で増幅された胎動信号は、
胎動とゝもに発生しスパイク状の波形となり出力
されるが、電圧比較回路８で「１」「０」の論理
信号に変換することができる。この論理信号を胎
動マーカ信号として記録することにより、胎動の
有無を知ることができる。またこの記録は、妊産
婦が胎動を感知してリモートマーカスイツチを押
して記録したものと表現が同じため、従来の胎動
記録と同様に扱え診療に役立てることができる。 The fetal movement signal amplified by the fetal movement signal amplification circuit 7 is
Fetal movements also occur and are output as spike-like waveforms, which can be converted into logic signals of "1" and "0" by the voltage comparator circuit 8. By recording this logic signal as a fetal movement marker signal, the presence or absence of fetal movement can be known. In addition, this record has the same expression as that recorded when a pregnant woman senses fetal movement and presses a remote marker switch, so it can be used in the same way as conventional fetal movement records and can be useful for medical treatment.
上記は検波回路４でドプラ信号を検出し、その
信号から胎動マーカ信号をとりだす手段を説明し
たが、次ぎにこのドプラ信号から胎児の心拍動信
号を抽出する手段と、陣痛信号を得るための陣痛
計測手段とを説明する。 The above describes a means for detecting a Doppler signal with the detection circuit 4 and extracting a fetal movement marker signal from that signal. The measuring means will be explained.
検波回路４から出力されたドプラ信号より、心
拍動信号用フイルタ１１で胎児心拍動による信号
成分をとりだす。この胎児心拍動信号は、心拍動
信号検波回路１２で検波した後、心拍数計測回路
１３にて心拍数に変換され、３チヤンネル記録器
９にて記録される。 From the Doppler signal output from the detection circuit 4, a signal component due to the fetal heartbeat is extracted by a heartbeat signal filter 11. This fetal heartbeat signal is detected by a heartbeat signal detection circuit 12, then converted into a heartbeat rate by a heart rate measurement circuit 13, and recorded by a three-channel recorder 9.
一方、腹壁上のストレインゲージ１４で検出さ
れた陣痛は陣痛信号増幅回路１５で増幅され、同
じく３チヤンネル記録器９にて記録される。 On the other hand, the contractions detected by the strain gauge 14 on the abdominal wall are amplified by the contraction signal amplification circuit 15 and recorded by the three-channel recorder 9 as well.
これらの心拍数・胎動・陣痛記録は、３チヤン
ネル記録器で同時に記録紙上に記録でき、共通の
時間軸を用いて記録できるため、心拍数・胎動・
陣痛の関連を観察できる利点を備えている。 These heart rate, fetal movement, and labor pain records can be recorded simultaneously on recording paper using a 3-channel recorder, and can be recorded using a common time axis.
It has the advantage of being able to observe the relationship between labor pains.
胎動は「１」「０」の論理信号に変換されてい
るため、３チヤンネル記録器のかわりに２チヤン
ネル記録器を使用し、陣痛信号の記録に「胎動あ
り」すなわち「１」のときだけマークが入るよう
にすることもできる。このマークは棒でも矢印で
もよい。すなわちここでは、３チヤンネル記録器
を用いて説明しているが、本発明は記録器の種類
に限定されないことは勿論である。 Since fetal movements are converted into logical signals of "1" and "0", a 2-channel recorder is used instead of a 3-channel recorder, and a mark is made only when there is "fetal movement", that is, "1" when recording labor signals. You can also make it so that . This mark may be a stick or an arrow. That is, although the description here uses a three-channel recorder, it goes without saying that the present invention is not limited to the type of recorder.
本実施例では、胎動の有無を「１」「０」で表
示する場合について述べたが、前記胎動信号増幅
回路７の出力をそのまま出力として記録すること
も勿論可能であり、更に雑音を含む一定レベル以
下の出力をリジエクタで取り除き、一定レベル以
上の出力のみを振幅の情報を含めて記録するなど
各種の変形が考えられるが、これらの変形はいず
れも本発明の思想を逸脱するものではない。 In this embodiment, the case where the presence or absence of fetal movement is displayed as "1" or "0" has been described, but it is of course possible to record the output of the fetal movement signal amplification circuit 7 as it is, and further Various modifications are conceivable, such as removing outputs below a certain level with a rejector and recording only outputs above a certain level, including amplitude information, but none of these modifications departs from the idea of the present invention.
本発明に係る分娩監視装置は、上記のように、
超音波を妊産婦の体表から入射する送信手段と、
妊産婦体内で反射された超音波を受信して電気信
号に変換しこれを受信信号として出力する受信手
段と、該受信信号から胎児の心拍動成分と胎児の
運動（胎動）成分とを選択的に分離抽出するそれ
ぞれの抽出手段と、該心拍動成分から胎児心拍数
を計測し胎児心拍数信号を出力する胎児心拍数計
測手段と、前記胎動成分を処理して胎動信号を出
力する胎動信号処理手段と、陣痛を計測し陣痛信
号を出力する陣痛計測手段と、記録手段とを具備
した構成からなるものであるから、心拍数、胎動
及び陣痛の同時記録が得られ、これらの関連を観
察することができるので、従来の分娩監視装置の
機能に加えNSTを実施できる機能を備えた新規
な分娩監視装置が得られる。
As described above, the childbirth monitoring device according to the present invention includes:
a transmitting means for transmitting ultrasonic waves from the body surface of the pregnant woman;
a receiving means that receives ultrasound reflected within the pregnant woman's body, converts it into an electrical signal, and outputs it as a received signal; and selectively extracts a fetal heartbeat component and a fetal movement component from the received signal. Respective extraction means for separating and extracting; fetal heart rate measuring means for measuring the fetal heart rate from the heartbeat component and outputting a fetal heart rate signal; and fetal movement signal processing means for processing the fetal movement component and outputting a fetal movement signal. Since it is comprised of a labor measurement means for measuring labor pains and outputting a labor pain signal, and a recording means, it is possible to obtain simultaneous records of heart rate, fetal movements, and labor pains, and to observe the relationship between these. Therefore, a new labor monitoring device can be obtained which has the function of performing NST in addition to the functions of conventional labor monitoring devices.
これにより、自覚胎動以外の胎動とゝもに胎児
心拍数が同時記録できるようになり、記録中に陣
痛が発生した場合でもこれを確認できるから、十
分なNSTを実施することができる。従つて、本
発明に係る装置によれば、従来の分娩監視装置の
機能に加えて妊娠中の胎児の状態をNSTにより
知ることができる上に、陣痛発来不足などによつ
て陣痛のない分娩期の胎児の状態についても
NSTにより知ることができるから、従来にない
優れた診断機能により十分な胎児監視を行うこと
ができるといつた諸効果がある。 This makes it possible to simultaneously record fetal heart rate as well as fetal movements other than conscious fetal movements, and even if labor contractions occur during recording, this can be confirmed, making it possible to perform adequate NST. Therefore, according to the device according to the present invention, in addition to the functions of conventional labor monitoring devices, it is possible to know the condition of the fetus during pregnancy by NST, and also to prevent labor without labor due to insufficient onset of labor. Regarding the condition of the fetus during the term
Since it can be determined by NST, there are various effects such as being able to perform sufficient fetal monitoring with unprecedented diagnostic functions.
図面は本発明に係る分娩監視装置の実施例を示
すブロツク図である。
１……超音波振動子、２……超音波送信回路、
３……超音波受信回路、４……検波回路、５……
胎動信号用フイルタ、６……胎動信号検波回路、
７……胎動信号増幅回路、８……電圧比較回路、
９……３チヤンネル記録器、１０……胎動基準電
圧設定、１１……心拍動信号用フイルタ、１２…
…心拍動信号検波回路、１３……心拍数計測回
路、１４……ストレインゲージ、１５……陣痛信
号増幅回路。
The drawing is a block diagram showing an embodiment of the childbirth monitoring device according to the present invention. 1... Ultrasonic transducer, 2... Ultrasonic transmission circuit,
3... Ultrasonic receiving circuit, 4... Detection circuit, 5...
Fetal movement signal filter, 6...Fetal movement signal detection circuit,
7... Fetal movement signal amplification circuit, 8... Voltage comparison circuit,
9... 3-channel recorder, 10... Fetal movement reference voltage setting, 11... Heartbeat signal filter, 12...
... Heartbeat signal detection circuit, 13 ... Heart rate measurement circuit, 14 ... Strain gauge, 15 ... Labor pain signal amplification circuit.
Claims (1)
と、妊産婦体内で反射された超音波を受信して電
気信号に変換しこれを受信信号として出力する受
信手段と、該受信信号から胎児の心拍動成分と胎
児の運動（胎動）成分とを選択的に分離抽出する
それぞれの抽出手段と、該心拍動成分から胎児心
拍数を計測し胎児心拍数信号を出力する胎児心拍
数計測手段と、前記胎動成分を処理して胎動信号
を出力する胎動信号処理手段と、陣痛を計測し陣
痛信号を出力する陣痛計測手段と、記録手段とを
具備したことを特徴とする分娩監視装置。1. A transmitting means for injecting ultrasound waves from the body surface of a pregnant woman, a receiving means for receiving ultrasound waves reflected within the pregnant woman's body, converting it into an electrical signal, and outputting it as a received signal, and detecting the heartbeat of the fetus from the received signal. extracting means for selectively separating and extracting a motion component and a fetal motion (fetal movement) component; a fetal heart rate measuring means for measuring a fetal heart rate from the heartbeat component and outputting a fetal heart rate signal; A labor monitoring device comprising: a fetal movement signal processing means for processing fetal movement components and outputting a fetal movement signal; a labor measurement means for measuring labor pains and outputting a labor signal; and a recording means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16271784A JPS6141442A (en) | 1984-07-31 | 1984-07-31 | Delivery monitor apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16271784A JPS6141442A (en) | 1984-07-31 | 1984-07-31 | Delivery monitor apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6141442A JPS6141442A (en) | 1986-02-27 |
| JPH0233254B2 true JPH0233254B2 (en) | 1990-07-26 |
Family
ID=15759949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16271784A Granted JPS6141442A (en) | 1984-07-31 | 1984-07-31 | Delivery monitor apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6141442A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63145639A (en) * | 1986-12-09 | 1988-06-17 | トーイツ株式会社 | Delivery monitor apparatus |
| JPH0622322Y2 (en) * | 1987-02-03 | 1994-06-15 | テルモ株式会社 | Fetal monitor |
| EP0346471A4 (en) * | 1987-02-03 | 1990-02-05 | Terumo Corp | Apparatus for monitoring fetus. |
| JPS63192420A (en) * | 1987-02-03 | 1988-08-09 | テルモ株式会社 | Embryo monitor apparatus |
| JPH0336327Y2 (en) * | 1987-02-03 | 1991-08-01 | ||
| JP5771200B2 (en) * | 2009-06-09 | 2015-08-26 | コーニンクレッカ フィリップス エヌ ヴェ | Method and apparatus for recognizing moving anatomy using ultrasound |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894841A (en) * | 1981-11-20 | 1983-06-06 | ユニヴェルシテ・ド・フランシューコムテ | Method and apparatus for recording quickening |
-
1984
- 1984-07-31 JP JP16271784A patent/JPS6141442A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894841A (en) * | 1981-11-20 | 1983-06-06 | ユニヴェルシテ・ド・フランシューコムテ | Method and apparatus for recording quickening |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6141442A (en) | 1986-02-27 |
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