CN104840220A - Doppler ultrasonographic device and Doppler ultrasonographic method for detection of fetal heart signals - Google Patents
Doppler ultrasonographic device and Doppler ultrasonographic method for detection of fetal heart signals Download PDFInfo
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Abstract
The invention belongs to the field of fetal heart monitoring and provides a Doppler ultrasonographic device and a Doppler ultrasonographic method for detection of fetal heart signals. The device comprises a quincunx ultrasonic sensor probe, a fetal heart signal acquisition module and a signal parameter processing module. The quincunx ultrasonic sensor probe comprises a first wafer and a plurality of second wafers surrounding the first wafer; the first wafer is used for transmitting and receiving ultrasonic signals in fetal heart searching and detecting; the second wafers are used for transmitting and receiving ultrasonic signals in fetal heart searching. The fetal heart signal acquisition module is connected with the quincunx ultrasonic sensor probe and the signal parameter processing module and used for acquiring signals received by the first wafer and the second wafers. The signal parameter processing module is used for calculating, judging and comparing the acquired signals to obtain fetal heart signals. The Doppler ultrasonographic device has the advantages that due to the specific probe structure, the fetal heart signals can be detected quickly and accurately, and safety and convenience in use are achieved.
Description
Technical field
The present invention relates to fetal rhythm monitoring field, especially relate to a kind of doppler ultrasound device and method detecting fetal heart rate signal.
Background technology
Doppler ultrasound fetus-voice meter has the advantages such as convenient, safe because of it, becomes a kind of conventional domestic fetal monitoring approach.Ultrasonic doppler fetus-voice meter make use of the doppler characterization principle of sound, and namely sound runs into the echo meeting occurrence frequency skew of moving object reflection, and the speed of side-play amount and moving object is proportional.
In correlation technique, ultrasonic doppler fetus instrument probe is launched to the heart of fetus in parent with the ultrasound wave of fixed frequency, certain angle, and the ultrasound wave launched runs into interface can produce reflection.Because beating of heart of fetus is periodic, therefore the signal of telecommunication of this reflection is also with certain periodicity, and containing required Fetal Heart Rate information, the situation of beating of heart of fetus can be reflected exactly, further, by processing this frequency displacement signal of telecommunication, can calculate the heart rate of fetus, fetal rhythm detection system determines the health status of fetus by detecting this Fetal Heart Rate information.
But, the fetal rhythm position of different anemia of pregnant woman is different, fetal rhythm is also different in the position of different time, and fetus-voice meter is in the market all hyperacoustic with fixed angle transmitting and receiving, and this needs probe directly to aim at fetal rhythm position just can monitor fetal heart rate signal.
In order to improve the ability of fetus-voice meter detection fetal rhythm, general medical fetal heart monitor adopts increases the area coverage that sonac chip area increases ultrasonic beam, to improve fetal rhythm monitoring capability.But the security requirement of domestic fetus-voice meter is higher, blindly monitoring capability can not be improved by the area increasing ultrasonic wafer.In addition, general pregnant mother, when not having experience, not having physician guidance, is difficult to find fetal rhythm position like a cork accurately, and this causes puzzlement in use to needing the pregnant mother doing fetal heart monitoring at home, promotes also to the domestic of fetus-voice meter and causes obstacle.
In view of this, special proposition the present invention.
Summary of the invention
The object of the present invention is to provide a kind of doppler ultrasound device detecting fetal heart rate signal, to solve the technical problem that domestic fetus-voice meter in prior art is difficult to accurately find fetal rhythm position.
The second object of the present invention is to provide a kind of method using this doppler ultrasound device to detect fetal heart rate signal, by this detection method, people can be made fetal heart rate signal to be detected rapidly and accurately, and it is determined to be rapidly and accurately convenient to Fetal Heart Rate information, is very applicable to domestic.
In order to realize above object, spy of the present invention by the following technical solutions:
The doppler ultrasound device of detection fetal heart rate signal provided by the invention, comprises quincunx ultrasonic sensor probe, fetal heart rate signal acquisition module and signal parameter processing module;
Described quincunx ultrasonic sensor probe comprises the first wafer and multiple second wafer; Described second wafer is all around the periphery being arranged on described first wafer; Described first wafer is used for the transmitting and receiving ultrasonic signal when finding and detect fetal rhythm, and described second wafer is used for transmitting and receiving ultrasonic signal when fetal rhythm is found;
Fetal heart rate signal acquisition module is all connected with described signal parameter processing module with quincunx ultrasonic sensor probe, for the signals collecting by described first wafer and described second wafer receipt, described signal parameter processing module is used for the signal of collection to carry out calculating, judge and comparing, and obtains fetal heart rate signal.
The doppler ultrasound device of this detection fetal heart rate signal, its probe is quincunx ultrasonic sensor probe, and particularly, this probe comprises the first wafer and multiple second wafer; Second wafer is all around the periphery being arranged on described first wafer.Like this, find in the process of fetal rhythm in start detection, first wafer and the second wafer all can be launched and receive the ultrasound wave returned, namely the second wafer plays the effect helping to find fetal heart rate signal, and all fetal heart rate signals searched out all are gathered by fetal rhythm signal acquisition module, after calculate through signal parameter processing module, judge and compare, thus know target fetal rhythm position and fetal heart rate signal exactly, and export, to know fetal heart frequency information after detecting.
Therefore, this doppler ultrasound device, owing to having the modules such as the probe of ad hoc structure, can be convenient to people and find fetal heart rate signal rapidly and accurately.And due to the second wafer and the special position relationship of the first wafer, it expands the detection range of wafer, the not area of direct increase wafer, thus can not additionally increase ultrasonic output, use safety.
Optionally, described signal parameter processing module comprises: signal quality parameter computing module, target fetal rhythm position judging module and signal quality parameter threshold value comparison module;
Described signal quality parameter computing module is connected with described fetal heart rate signal acquisition module, for according to the fetal heart rate signal gathered, calculates the signal quality parameter of each wafer;
Described target fetal rhythm position judging module is connected with described fetal heart rate signal acquisition module with described signal quality parameter computing module, for the signal quality parameter of more each wafer, show that signal quality is best, is most possibly target fetal rhythm position wafer;
Described signal quality parameter threshold value comparison module is connected with fetal heart rate signal acquisition module with described target fetal rhythm position judging module, for every preset duration, detects the signal quality parameter of target fetal rhythm position wafer.
For signal quality parameter computing module, its function is mainly reflected in carries out mass parameter calculating, the judgement of target fetal rhythm and signal quality parameter mensuration etc. to gathered fetal heart rate signal; And above-mentioned function can be realized successively by signal quality parameter computing module, target fetal rhythm position judging module and signal quality parameter threshold value comparison module, thus know target fetal rhythm position and fetal heart rate signal exactly in order.
Optionally, also comprise: output module and display module;
Described output module is connected with described target fetal rhythm position judging module with described signal quality parameter threshold value comparison module, for exporting effective target fetal heart rate signal;
Described display module is connected with described output module, for showing Fetal Heart Rate numeric data and fetal heart monitoring signal important hints labelling.
After target fetal rhythm position and fetal heart rate signal are searched out, the mass parameter (whether being less than predetermined threshold value) of this signal is detected by signal quality parameter threshold value comparison module, if be less than predetermined threshold value, mobile probe continues to find, if be greater than predetermined threshold value, proceed fetal heart rate signal collection and export, the process that signal exports is achieved by output module, and the fetal rhythm information after exporting then is shown by display module.
Optionally, described first wafer is multiple.
In order to find target fetal rhythm position more rapidly and accurately, preferably, the first wafer being in centre is multiple, and the second all wafers is all around being arranged on around multiple first wafer.
Optionally, the number of described first wafer is less than the number of described second wafer.
Because the second wafer needs around being arranged on around the first wafer, therefore, for the ease of arranging, the number of the first wafer is unsuitable too many.
Optionally, also housing is comprised; Described fetal heart rate signal acquisition module and described signal parameter processing module are all arranged in described housing.
The outer support as whole device of housing and fixed structure, for by unified for all nucleus modules integrated, be convenient to whole device and carry and use.
Optionally, described quincunx ultrasonic sensor probe is arranged on the housing, and is connected with described housing into rotation.This set-up mode is convenient to probe with different angles searching fetal heart rate signal.
Utilize described doppler ultrasound device to detect a method for fetal heart rate signal, comprise the following steps:
1), by quincunx ultrasonic sensor probe by being pressed in abdominal part, make the first wafer and the second wafer transmitting and receiving ultrasound wave, and the ultrasonic signal received is gathered by fetal rhythm signal acquisition module;
2), make signal parameter processing module be carried out calculating, judge and comparing by the ultrasonic signal of collection, obtain fetal heart rate signal and target fetal rhythm position.
This fetal rhythm detection method, because probe comprises the first wafer and the second wafer, makes the detection area of wafer increase, thus efficiently solves the defect that existing fetus-voice meter is difficult to accurately find fetal rhythm position.
Optionally, in step 2) in, specifically comprise:
Signal parameter processing module is made to calculate the signal quality parameter of each wafer;
Make the signal quality parameter of the more each wafer of target fetal rhythm position judging module, show that signal quality is best, be most possibly target fetal rhythm position wafer;
Make signal quality parameter threshold value comparison module every preset duration, detect the signal quality parameter of target fetal rhythm position wafer.
After obtained target fetal rhythm position wafer by fetal rhythm position judging module, make this target location of the first wafer aligned, detect to realize fetal heart rate signal; And other the second wafer all quits work, power consumption can't be increased and also can not increase ultrasonic output, use safety.
Optionally, in step 2) in: when the signal quality parameter of target fetal rhythm position wafer is greater than predetermined threshold value, then the fetal heart rate signal of this wafer is exported.
In the process detecting fetal heart rate signal, will judge its signal quality parameter, if when this parameter is greater than predetermined threshold value, then this fetal heart rate signal directly exports, if be less than predetermined threshold value, need mobile probe and again finds fetal heart rate signal.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the wafer layout schematic diagram of the quincunx ultrasonic sensor probe in the doppler ultrasound device of detection fetal heart rate signal provided by the invention;
Fig. 2 is the model calling schematic diagram of the doppler ultrasound device of detection fetal heart rate signal provided by the invention;
Fig. 3 is the flow chart that doppler ultrasound device provided by the invention detects fetal heart rate signal.
Detailed description of the invention
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
The doppler ultrasound device of detection fetal heart rate signal provided by the invention, comprises quincunx ultrasonic sensor probe, fetal heart rate signal acquisition module and signal parameter processing module;
Quincunx ultrasonic sensor probe comprises the first wafer and multiple second wafer; Second wafer is all around the periphery being arranged on the first wafer; First wafer is used for the transmitting and receiving ultrasonic signal when finding and detect fetal rhythm, and the second wafer is used for transmitting and receiving ultrasonic signal when fetal rhythm is found;
Fetal heart rate signal acquisition module is all connected with signal parameter processing module with quincunx ultrasonic sensor probe, for the signals collecting by the first wafer and the second wafer receipt, signal parameter processing module is used for the signal of collection to carry out calculating, judge and comparing, and obtains fetal heart rate signal.
In further technical scheme, the signal processing fetal heart rate signal acquisition module effectively rapidly to make signal parameter processing module and gather, signal parameter processing module comprises: signal quality parameter computing module, target fetal rhythm position judging module and signal quality parameter threshold value comparison module;
Signal quality parameter computing module is connected with fetal heart rate signal acquisition module, for according to the fetal heart rate signal gathered, calculates the signal quality parameter of each wafer;
Target fetal rhythm position judging module with signal quality parameter computing module be connected with fetal heart rate signal acquisition module, for the signal quality parameter of more each wafer, show that signal quality is best, be most possibly target fetal rhythm position wafer;
Signal quality parameter threshold value comparison module is connected with fetal heart rate signal acquisition module with target fetal rhythm position judging module, for every preset duration, detects the signal quality parameter of target fetal rhythm position wafer.
Like this, the signal gathered is calculated by mass parameter successively, target fetal rhythm position judgment and state signal quality parameter threshold value and compare, thus has known target fetal rhythm and fetal rhythm position exactly, after the first wafer inspection, directly can export, and show fetal rhythm information.
Therefore, in more preferred scheme, output module and display module is also comprised; Output module is connected with target fetal rhythm position judging module with signal quality parameter threshold value comparison module, for exporting effective target fetal heart rate signal; Display module with output module be connected, for showing Fetal Heart Rate numeric data and fetal heart monitoring signal important hints labelling.
In addition, wherein in a technical scheme, based on above-mentioned preferred scheme, also can make preferably following:
First wafer is multiple, and the number of the first wafer is less than the number of the second wafer; Like this, under the prerequisite adding probe transmitting ultrasonic wave range, the setting realizing the second wafer is also convenient to.More preferred, go back adjustable-angle between the second wafer and the first wafer, to realize the object of multi-faceted searching fetal rhythm.
In addition, this device also comprises housing; Fetal heart rate signal acquisition module and signal parameter processing module are all arranged in housing, quincunx ultrasonic sensor probe is arranged on housing, and be connected with housing into rotation, and arranging of display module is random, as long as meet people can observe fetal rhythm information easily.
The method utilizing this doppler ultrasound device to detect fetal heart rate signal provided by the invention comprises the following steps:
S1: by quincunx ultrasonic sensor probe by being pressed in abdominal part, make the first wafer and the second wafer transmitting and receiving ultrasound wave, and the ultrasonic signal received is gathered by fetal rhythm signal acquisition module;
S2: make signal parameter processing module be carried out calculating, judge and comparing by the ultrasonic signal of collection, obtains fetal heart rate signal and target fetal rhythm position.
Concrete, in step 2, comprise following operation:
Signal parameter processing module is made to calculate the signal quality parameter of each wafer;
Make the signal quality parameter of the more each wafer of target fetal rhythm position judging module, show that signal quality is best, be most possibly target fetal rhythm position wafer;
Make signal quality parameter threshold value comparison module every preset duration, detect the signal quality parameter of target fetal rhythm position wafer.When the signal quality parameter of target fetal rhythm position wafer is greater than predetermined threshold value, then the fetal heart rate signal of this wafer is exported.
It should be noted that, in the present invention, for the partial schematic diagram of quincunx ultrasonic sensor probe, as shown in Figure 1, wherein, the first wafer is the 101, second wafer is 102, and in FIG, showing the first wafer 101 is wafer layout figure in multiple and single two kinds of situations.In addition, in order to further be explained and illustrated the present invention, one embodiment of the present of invention as shown in Figure 3:
Blossom type sonac 301, two groups are divided to distribute in blossom type by multiple wafer, wherein one group of first wafer (can be made up of one or more wafer) being positioned at center is responsible for the transmitting and receiving ultrasonic signal when fetal rhythm is found and fetal rhythm detects, and the second wafer (being made up of multiple wafer) that another group is positioned at surrounding is only responsible for transmitting and receiving ultrasonic signal when fetal rhythm is found.
Fetal heart rate signal acquisition module 302, is connected with blossom type sonac module 301, for gathering fetal heart rate signal in preset duration;
Signal quality parameter computing module 303, is connected with fetal heart rate signal acquisition module 302 with target fetal rhythm position judging module 304, for according to the fetal heart rate signal gathered, calculates the signal quality parameter of each wafer;
Target fetal rhythm position judging module 304, be connected with signal quality parameter threshold value comparison module 306 with fetal heart rate signal acquisition module 302, signal quality parameter computing module 303, ultrasonic probe angle adjustment module 305, for the signal quality parameter of more each wafer, show that signal quality is best, be most possibly the wafer of target fetal rhythm position;
Ultrasonic probe angle adjustment module 305, be connected with fetal heart rate signal acquisition module 302 with target fetal rhythm position judging module 304, show that signal quality is best according to signal quality parameter judge module, be most possibly the wafer of target fetal rhythm position, automatic adjustment head angle, allows the first wafer in wafer set just to target location;
Signal quality parameter threshold value comparison module 306, with target fetal rhythm position judging module 304 be connected with fetal heart rate signal acquisition module 302, for every preset duration, whether the signal quality parameter detecting the first wafer is less than predetermined threshold value, if be less than predetermined threshold value, then again find fetal rhythm, if be greater than predetermined threshold value, proceed fetal heart rate signal collection and export;
Output module 307, is connected with fetal heart rate signal acquisition module 302, for exporting effective target fetal heart rate signal; Display module 308, is connected with output module 307, can be used for showing effective Fetal Heart Rate numeric data and fetal heart monitoring signal important hints labelling.
As shown in Figure 2, to the doppler ultrasound device of the detection fetal heart rate signal that above-described embodiment provides, its detecting step is specially:
Step 201: by probe contacts face by being pressed in abdominal part;
After instrument starts, automatically blossom type sonac is reset to start angle, namely ultrasonic beam is perpendicular to probe contacts face, by probe contacts face by being pressed in abdominal part.
Step 202: gather fetal heart rate signal in preset duration;
Send ultrasound wave by sensor, the ultrasonic wafer set of blossom type (blossom type sonac module) receives ultrasonic echo simultaneously, gathers fetal heart rate signal.
Step 203: analyze the signal quality parameter K1-Kn drawing each wafer;
According to the fetal heart rate signal often organized wafer and gather in preset duration, draw each wafer fetal heart rate signal mass parameter K1-Kn;
Step 204: analyze signal quality best, be most possibly the m wafer of target fetal rhythm position;
The relatively fetal heart rate signal mass parameter of K1-Kn, analyze signal quality best, be most possibly the m wafer of target fetal rhythm position, its corresponding fetal heart rate signal mass parameter maximum Km;
Step 205: automatically adjust head angle, allows the first wafer just to possibility target fetal rhythm position, i.e. m wafer ultrasonic beam covering position;
Step 206: whether carry out fetal heart rate signal collection and analyze is fetal rhythm data;
After head angle is adjusted to the right place, first wafer carries out fetal heart rate signal collection, whether all the other wafer set stop gathering, and be effective fetal heart rate signal according to acquired signal analysis, if carry out next step, if not then getting back to step 202, and record ultrasonic probe surveyed area, guarantee that this test point is ultrasonic and explore area coverage, avoid surveyed area duplicate detection, until find effective fetal rhythm, or change test point;
Step 207: gather and export effective fetal heart rate signal;
The mode of supervising by traditional tire continues transmitting and receiving ultrasound wave, calculates and fetal rhythm output for heart rate data;
Step 208: whether the signal quality parameter of point crystallize first wafer is less than predetermined threshold value T.
If be less than predetermined threshold value T, then come back to step 202, if be greater than predetermined threshold value T, continue to export, and then realize searching and the detection of fetal heart rate signal.
To sum up, the doppler ultrasound devices and methods therefor of detection fetal heart rate signal provided by the present invention can by adjustment wafer angle to obtain wider ultrasonic area coverage, solve existing fetus-voice meter need increase chip area or adjust head angle by rule of thumb to increase the drawback that ultrasonic beam covers detection area, efficiently solve the problem that domestic consumer finds fetal rhythm difficulty, and the first wafer that the present invention is finding fetal rhythm to carry out only being positioned in signals collecting output procedure center is working, power consumption can't be increased and also can not increase ultrasonic output, use safety, can do not have medical practitioner instruct situation under carry out.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. detect a doppler ultrasound device for fetal heart rate signal, it is characterized in that, comprise quincunx ultrasonic sensor probe, fetal heart rate signal acquisition module and signal parameter processing module;
Described quincunx ultrasonic sensor probe comprises the first wafer and multiple second wafer; Described second wafer is all around the periphery being arranged on described first wafer; Described first wafer is used for the transmitting and receiving ultrasonic signal when finding and detect fetal rhythm, and described second wafer is used for transmitting and receiving ultrasonic signal when fetal rhythm is found;
Fetal heart rate signal acquisition module is all connected with described signal parameter processing module with quincunx ultrasonic sensor probe, for the signals collecting by described first wafer and described second wafer receipt, described signal parameter processing module is used for the signal of collection to carry out calculating, judge and comparing, and obtains fetal heart rate signal.
2. doppler ultrasound device according to claim 1, is characterized in that, described signal parameter processing module comprises: signal quality parameter computing module, target fetal rhythm position judging module and signal quality parameter threshold value comparison module;
Described signal quality parameter computing module is connected with described fetal heart rate signal acquisition module, for according to the fetal heart rate signal gathered, calculates the signal quality parameter of each wafer;
Described target fetal rhythm position judging module is connected with described fetal heart rate signal acquisition module with described signal quality parameter computing module, for the signal quality parameter of more each wafer, show that signal quality is best, is most possibly target fetal rhythm position wafer;
Described signal quality parameter threshold value comparison module is connected with fetal heart rate signal acquisition module with described target fetal rhythm position judging module, for every preset duration, detects the signal quality parameter of target fetal rhythm position wafer.
3. doppler ultrasound device according to claim 2, is characterized in that, also comprise: output module and display module;
Described output module is connected with described target fetal rhythm position judging module with described signal quality parameter threshold value comparison module, for exporting effective target fetal heart rate signal;
Described display module is connected with described output module, for showing Fetal Heart Rate numeric data and fetal heart monitoring signal important hints labelling.
4. doppler ultrasound device according to claim 3, is characterized in that, described first wafer is multiple.
5. doppler ultrasound device according to claim 4, is characterized in that, the number of described first wafer is less than the number of described second wafer.
6. the doppler ultrasound device according to any one of claim 1-5, is characterized in that, also comprise housing;
Described fetal heart rate signal acquisition module and described signal parameter processing module are all arranged in described housing.
7. doppler ultrasound device according to claim 6, is characterized in that, described quincunx ultrasonic sensor probe is arranged on the housing, and is connected with described housing into rotation.
8. utilize the doppler ultrasound device according to any one of claim 1-7 to detect a method for fetal heart rate signal, it is characterized in that, comprise the following steps:
1), by quincunx ultrasonic sensor probe by being pressed in abdominal part, make the first wafer and the second wafer transmitting and receiving ultrasound wave, and the ultrasonic signal received is gathered by fetal rhythm signal acquisition module;
2), make signal parameter processing module be carried out calculating, judge and comparing by the ultrasonic signal of collection, obtain fetal heart rate signal and target fetal rhythm position.
9. method according to claim 8, is characterized in that, in step 2) in, specifically comprise:
Signal parameter processing module is made to calculate the signal quality parameter of each wafer;
Make the signal quality parameter of the more each wafer of target fetal rhythm position judging module, show that signal quality is best, be most possibly target fetal rhythm position wafer;
Make signal quality parameter threshold value comparison module every preset duration, detect the signal quality parameter of target fetal rhythm position wafer.
10. method according to claim 9, is characterized in that, in step 2) in,
When the signal quality parameter of target fetal rhythm position wafer is greater than predetermined threshold value, then the fetal heart rate signal of this wafer is exported.
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| CN111481230A (en) * | 2019-01-28 | 2020-08-04 | 深圳市理邦精密仪器股份有限公司 | Processing method and device of fetal monitoring signal, fetal monitoring device and medium |
| CN111481230B (en) * | 2019-01-28 | 2023-06-09 | 深圳市理邦精密仪器股份有限公司 | Fetal monitoring signal processing method and device, fetal monitoring device and medium |
| CN110432884A (en) * | 2019-07-08 | 2019-11-12 | 暨南大学 | Fetal stress assessment method and system based on Fetal Heart Rate deceleration area area |
| CN111544042A (en) * | 2020-04-15 | 2020-08-18 | 四川大学华西第二医院 | Ultrasonic Doppler fetal heart monitor |
| CN111544042B (en) * | 2020-04-15 | 2021-06-08 | 四川大学华西第二医院 | Ultrasonic Doppler fetal heart monitor |
| CN112998753A (en) * | 2021-02-19 | 2021-06-22 | 浙江大学温州研究院 | Fetal heart detection system with fetal heart position guiding function |
| CN112998752A (en) * | 2021-02-19 | 2021-06-22 | 浙江大学温州研究院 | Fetal heart detection method based on fetal heart position guidance |
| CN112998753B (en) * | 2021-02-19 | 2022-05-10 | 浙江大学温州研究院 | Fetal heart detection system with fetal heart position guiding function |
| CN112998752B (en) * | 2021-02-19 | 2022-05-10 | 浙江大学温州研究院 | Fetal heart detection method based on fetal heart position guidance |
| CN113116379A (en) * | 2021-04-22 | 2021-07-16 | 深圳市景新浩科技有限公司 | Fetal heart monitor integrating pregnancy monitoring and working method thereof |
| CN113116379B (en) * | 2021-04-22 | 2021-11-02 | 深圳市景新浩科技有限公司 | Fetal heart monitor integrating pregnancy monitoring and working method thereof |
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