CN102485180B - Fetus monitoring device and method - Google Patents
Fetus monitoring device and method Download PDFInfo
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- CN102485180B CN102485180B CN201010574940.3A CN201010574940A CN102485180B CN 102485180 B CN102485180 B CN 102485180B CN 201010574940 A CN201010574940 A CN 201010574940A CN 102485180 B CN102485180 B CN 102485180B
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Abstract
The invention relates to a fetus monitoring device, which comprises a fetus monitoring unit, a signal analysis unit and a mother body monitoring unit, wherein the fetus monitoring unit is used for monitoring physiological signals of a fetus, the signal analysis unit is sued for receiving and analyzing the physiological signals of the fetus, the mother body monitoring unit is used for monitoring physiological signals of a mother body, and the signal analysis used is also used for receiving moving signals of the mother body and integrating the moving signals of the mother body to calibrate the physiological signals of the fetus. In addition, the invention also relates to a fetus monitoring method, which comprises the following steps of: obtaining the physiological signals of the fetus, obtaining the moving signals of the mother body and integrating the moving signals of the mother body to calibrate the physiological signals of the fetus. The device and the method are simultaneously used for obtaining the physiological information of the fetus and the moving information of the mother body, the moving information of the mother body is integrated for calibrating the physiological information of the fetus, and the fetus state can be accurately known.
Description
[technical field]
The present invention relates to antepartum monitoring, especially relate to a kind of foetal monitor and a kind of fetus monitoring method.
[background technology]
Fetal monitoring adopts biophysics or biochemical means, evaluates Fetus Intrauterine Growth and safety situation, is the important means ensureing puerpera and fetal well-being, realize prenatal and postnatal care.
Intermittent auscultation is fetus monitoring method the earliest, along with the development of technology, within 1964, start to be applied to fetus clinical monitoring from ultrasonic doppler (Ultrasound Doppler) effect, the popularity rate of fetal heart rate is more and more higher, and the fetal monitoring equipment in market or system adopt this kind of mode mostly.
Fetal heart frequency monitoring analysis parameter mainly contains basic Fetal Heart Rate (basal heart rate, BHR), acceleration times (acceleration), deceleration number of times (deceleration), height change section the number of minutes (high/low variation), long variation period and amplitude (long term variation, LTV), uterine contraction number of times (uterus contraction, UC), short variation (short term variation, STV), fetal movement (fetal movement, FM) etc.
Wherein, Fetal Heart Rate short variation STV is an important indicator weighing fetal development situation, and be also at present an accurately the most responsive index, in prediction intrauterine fetal anoxia or acidosis even Intrauterine Fetal Death, be better than the index LTV of the Traditional Man interpretation that some hospitals adopt.
When utilizing ultrasonic doppler (Doppler) effect to obtain Fetal Heart Rate, the ultrasound wave (frequency f that reflections off objects is returned
2) with the ultrasound wave (frequency f of source emission
1) between Doppler frequency shift f
d=2*v*cos (θ) * f
1/ c, in formula, v is the relative velocity of testee and sound source, and θ is the angle of acoustic beam and the direction of motion.Parent upset makes v*cos (θ) significant change, causes Doppler frequency shift f
dchange obviously, thus makes traditional Fetal Heart Rate Monitoring can not normally use because of parent upset.
In addition, fetal movement is the fetal movements the earliest that parent is felt, is one of objective symbol of fetal life, is also that obstetrician is used for observing the whether good important indicator of fetus.Fetal in utero health is normally predicted in fetal movement, and fetal movement reduces or disappears, then pointing out fetal anoxia or be about to dead, is the alarm signal that fetus needs to rescue immediately.
The Main Means of current fm monitoring be anemia of pregnant woman with subjective sensation fetal movement enumerator from several fetal movement, the method needs anemia of pregnant woman to repose for a long time, is difficult to adhere to, and technical result is due to the impact by factors such as anemia of pregnant woman's sensitivity, amniotic fluid volumes, and credibility is not high.Also the uterine contraction pressure signal of being popped one's head in by uterine contraction is had to detect Fetal Movement Signal.From the raw pressure signal more complicated that mother's abdominal part gathers, except fetal movement, also have uterine contraction and parent to exert oneself, breathe, cough, laugh and position changes the change of the maternal abdominal pressure caused.
Whether therefore traditional fetal monitoring system causes the fetus physiological signal that detects abnormal when often there is parent upset, make medical personnel accurately cannot understand physiologic information really abnormal, cause erroneous judgement.
[summary of the invention]
Based on this, be necessary to provide a kind of foetal monitor that accurate fetus physiological signal can be provided.
A kind of foetal monitor, comprise fetal monitoring unit for monitoring fetus physiological signal and reception and analyze the signal analysis unit of described fetus physiological signal, also comprise the parent monitoring means for monitoring parent motor message, described signal analysis unit is also for receiving parent motor message, and comprehensive parent motor message calibration fetus physiological signal.
Preferably, the pretreatment unit described fetus physiological signal and parent motor message being carried out to process in early stage is also comprised.
Preferably, described pretreatment unit is connected with described signal analysis unit by wired or wireless mode.
Preferably, described parent monitoring means is motion sensor.
Preferably, described motion sensor is pickoff or optical pickocff.
Preferably, described motion sensor is one in acceleration transducer, gyroscope and magnetometer or combination.
Preferably, also comprise Power Management Unit, described Power Management Unit is connected with fetal monitoring unit, parent monitoring means, pretreatment unit and post-processing unit.
In addition, a kind of fetus monitoring method is also provided.
A kind of fetus monitoring method, comprises the steps: to obtain fetus physiological signal; Obtain parent motor message; Comprehensive parent motor message calibration fetus physiological signal.
Preferably, before the step of comprehensive parent motor message calibration fetus physiological signal, pretreatment is carried out to described fetus physiological signal and parent motor message.
Preferably, described parent motor message is acceleration, angular velocity, change in location information.
Said apparatus and method obtain fetus physiologic information and parent movable information simultaneously, and comprehensive parent movable information is calibrated fetus physiologic information, accurately can understand fetal state.
[accompanying drawing explanation]
Fig. 1 is the foetal monitor function structure chart of an embodiment;
Fig. 2 is with flow chart during doppler ultrasound unit pickup Fetal Heart Rate signal in Fig. 1 embodiment.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, foetal monitor is further described.
As shown in Figure 1, be the foetal monitor of an embodiment, this monitor device comprises fetal monitoring unit 100, parent monitoring means 200, pretreatment unit 300, post-processing unit 400 and Power Management Unit 500.Fetal monitoring unit 100 is directly connected with post-processing unit 400, transmits the fetus physiological signal of monitoring to it.After parent monitoring means 200 carries out the signal processing in early stage by pretreatment unit 300 pairs of fetus physiological signals and parent motor message, then send to post-processing unit 400.The process in early stage that pretreatment unit 300 carries out signal comprises signal amplification, filtering etc.Pretreatment unit 300 is connected with post-processing unit 400 by wired or wireless mode.
Fetal monitoring unit 100 sends the fetal heartbeat change of monitoring gained, the fetus physiological signal of monitoring comprises the information such as Fetal Heart Rate, fetal movement and uterine contraction, traditional monitoring device or equipment can be adopted to monitor, such as adopt ultrasonic power to obtain heart of fetus movable information, adopt pressure transducer to obtain uterine contraction and fetal movement information.
The parent movable information that the parent monitoring means 200 of the present embodiment is monitored can be change in location, velocity variations, also can be acceleration change.Parent upset is the common forms of motion of one that above-mentioned parent motor message is changed.The heart of fetus movable information that parent upset can allow ultrasonic power obtain produces artifact, or makes pressure sensor contacts bad, makes uterine contraction abnormal with fetal movement information.Therefore parent monitoring means 200 is specially motion sensor.During monitoring, motion sensor is located at maternal abdominal and is fixed relative to maternal abdominal position, and therefore when parent overturns relative to normal position, motion sensor reflects motion change immediately, obtains parent movable information.
Wherein, the adoptable sensor of parent monitoring means 200 can be one or more in acceleration transducer 201, magnetometer 202 and gyroscope 203.Acceleration transducer 201 obtains the component of acceleration of gravity on its three axle, and during parent upset, each component can change, and according to the situation of change of each component of acceleration, can know parent upset situation.The component that magnetometer 202 can obtain earth's magnetic field three axle draw parent relative to magnetic north to deflection angle.Gyroscope 203 can record before and after human body, up and down, the angular velocity of rotation in three directions, left and right, thus draw upset situation.The present embodiment preferably, adopts above-mentioned three kinds of sensors simultaneously, utilizes Kalman filtering the information about attitudes vibration to be merged, Real-time Obtaining human body attitude.
The sensor that parent monitoring means 200 adopts can be dynamo-electric, also can be optics.
Pretreatment unit 300 possesses the function analyzing fetus physiological signal, and this is conventional art means, repeats no more.In addition, in the foetal monitor of the present embodiment, pretreatment unit 300 also needs parent monitoring means 200 to carry out signal condition work in early stage, filters random noise, reduces the impact of temperature drift on parent monitoring means 200.
Post-processing unit 400 need consider fetus physiological signal, and parent movable information, detecting filtering parent movable information in the fetus physiological signal obtained, especially upset information, through various algorithm for pattern recognition (as independent component analysis, bayesian algorithm, support vector machine and neutral net etc.), obtain the fetus physiological signal after calibration.
Power Management Unit 500 is connected with fetal monitoring unit 100, parent monitoring means 200 and post-processing unit 400 and carries out power supply management.
Power Management Unit 500 can adopt direct current or Alternating Current Power Supply, or wireless power.
In another embodiment, a kind of fetus monitoring method comprises the steps:
Obtain fetus physiological signal.Fetus physiological signal comprises Fetal Heart Rate and fetal movement information, and traditional monitoring device or equipment can be adopted to monitor, such as, adopt ultrasonic power to obtain heart of fetus movable information, adopts pressure transducer to obtain uterine contraction and fetal movement information.Also fetal movement information is obtained by acceleration transducer 201.
Obtain parent physiological signal.Parent physiological signal is mainly parent movable information.Wherein larger on the impact of fetus physiological signal in parent motion is parent upset, the heart of fetus movable information generation artifact that such as parent upset can allow ultrasonic power obtain, or makes pressure sensor contacts bad, makes uterine contraction abnormal with fetal movement information.Attitude transducer can be adopted to obtain parent upset information, and sensor is located at maternal abdominal and is fixed relative to maternal abdominal position, carries out Real-Time Monitoring to parent kinestate.
Comprehensive parent motor message calibration fetus physiological signal.Detecting filtering parent movable information in the fetus physiological signal obtained, especially upset information, through various algorithm for pattern recognition, obtain the fetus physiological signal after calibration.
Preferably, the method for the present embodiment, before the step of comprehensive parent physiological signal calibration fetus physiological signal, is carried out pretreatment to described fetus physiological signal and parent motor message, is mainly carried out filtering and processing and amplifying to signal.
As shown in Figure 2, be the flow chart of the present embodiment when picking up Fetal Heart Rate signal with doppler ultrasound unit.
In filter processing unit, independent component analysis (independent component analysis, ICA) algorithm, bayesian algorithm, support vector machine and neutral net etc. can be utilized to realize the filtering of parent motor message in fetus physiological signal.When the filtering utilizing ICA algorithm realization to parent motor message, utilize them to be dissimilar signals, think that they are separate.According to the principle of statistical iteration, certain specific Optimality Criteria is adopted to be decomposed one by one by isolated component wherein.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. a foetal monitor, comprise fetal monitoring unit for monitoring fetus physiological signal and reception and analyze the signal analysis unit of described fetus physiological signal, it is characterized in that, also comprise the parent monitoring means for monitoring parent motor message, described signal analysis unit is also for receiving parent motor message, and comprehensive parent motor message calibration fetus physiological signal; Described parent motor message is overturn by parent and produces, and can be change in location, velocity variations or acceleration change; Described parent monitoring means is motion sensor, and described motion sensor is one or more in acceleration transducer, gyroscope and magnetometer; Fetus physiological signal comprises Fetal Heart Rate, fetal movement and uterine contraction information; Adopt ultrasonic power to obtain heart of fetus movable information, adopt pressure transducer to obtain uterine contraction and fetal movement information.
2. foetal monitor as claimed in claim 1, is characterized in that, also comprises the pretreatment unit described fetus physiological signal and parent motor message being carried out to process in early stage.
3. foetal monitor as claimed in claim 2, it is characterized in that, described pretreatment unit is connected with described signal analysis unit by wired or wireless mode.
4. foetal monitor as claimed in claim 1, it is characterized in that, also comprise Power Management Unit, described Power Management Unit is connected with fetal monitoring unit, parent monitoring means and signal analysis unit.
5. a fetus monitoring method, is characterized in that, comprises the steps:
Obtain fetus physiological signal;
Obtain parent motor message;
Comprehensive parent motor message calibration fetus physiological signal;
Described parent motor message is overturn by parent and produces, and can be change in location, velocity variations or acceleration change; Described parent motor message is acceleration, angular velocity, change in location information; Fetus physiological signal comprises Fetal Heart Rate, fetal movement and uterine contraction information; Adopt ultrasonic power to obtain heart of fetus movable information, adopt pressure transducer to obtain uterine contraction and fetal movement information.
6. fetus monitoring method as claimed in claim 5, is characterized in that, before the step of comprehensive parent motor message calibration fetus physiological signal, carries out pretreatment to described fetus physiological signal and parent motor message.
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| CN201010574940.3A CN102485180B (en) | 2010-12-06 | 2010-12-06 | Fetus monitoring device and method |
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| CN201010574940.3A CN102485180B (en) | 2010-12-06 | 2010-12-06 | Fetus monitoring device and method |
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| CN102485180B true CN102485180B (en) | 2015-01-07 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104470420B (en) * | 2012-07-12 | 2018-01-16 | 皇家飞利浦有限公司 | Method and fetal monitoring system therein for the improved determination to maternal heart rate |
| CN103239234A (en) * | 2013-04-23 | 2013-08-14 | 江苏矽望电子科技有限公司 | Intelligent fetal movement monitoring system based on multi-scale measuring |
| EP3019087A4 (en) * | 2013-07-12 | 2017-03-15 | Laerdal Global Health AS | Fetal heart rate monitoring assembly |
| CN104382618B (en) * | 2014-11-13 | 2017-09-26 | 深圳市理邦精密仪器股份有限公司 | The denoising method and Fetal Heart Rate detector detected based on Fetal Heart Rate |
| CN104546007B (en) * | 2015-01-29 | 2017-05-24 | 深圳市理邦精密仪器股份有限公司 | Anti-interference processing method and device for fetal movement detection |
| CN109567866B (en) * | 2018-10-15 | 2021-12-28 | 广东宝莱特医用科技股份有限公司 | Method for processing fetal heart rate cycle variation |
| EP4278980A1 (en) * | 2021-04-02 | 2023-11-22 | Edan Instruments, Inc. | Fetal doppler and detection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444905A (en) * | 2003-01-29 | 2003-10-01 | 广州三瑞医疗器械有限公司 | Method and device for monitoring contraction activities of mother womb and controlling childbirth process |
| CN101677785A (en) * | 2007-05-09 | 2010-03-24 | 皇家飞利浦电子股份有限公司 | Automatically monitor the active method of fetal movements |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11267124A (en) * | 1998-03-25 | 1999-10-05 | Yasuto Takeuchi | Dynamic observation fetus monitoring apparatus |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444905A (en) * | 2003-01-29 | 2003-10-01 | 广州三瑞医疗器械有限公司 | Method and device for monitoring contraction activities of mother womb and controlling childbirth process |
| CN101677785A (en) * | 2007-05-09 | 2010-03-24 | 皇家飞利浦电子股份有限公司 | Automatically monitor the active method of fetal movements |
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| Title |
|---|
| JP特开平11-267124A 1999.10.05 * |
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