CN108236476B - Method and system for determining optimal position of fetal heart detection - Google Patents
Method and system for determining optimal position of fetal heart detection Download PDFInfo
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Abstract
The invention discloses a method and a system for determining an optimal position of fetal heart detection, wherein a plurality of possible fetal heart positions during the current fetal heart detection are determined and displayed through the optimal position of the fetal heart detection determined at any time in the recorded previous fetal heart detections and the gestational and abdominal circumferences during the current fetal heart detection; then, detecting signals corresponding to the positions of the fetal centers which possibly exist; and finally, according to the detected signals corresponding to the positions of the fetal heart, determining the possible fetal heart position corresponding to the signal with the maximum intensity as the optimal position for the current fetal heart detection, and displaying the determined optimal position for the current fetal heart detection, thereby helping a user to quickly and accurately determine the optimal position for the fetal heart detection.
Description
Technical Field
The invention relates to the technical field of medical monitoring, in particular to a method and a system for determining an optimal position of fetal heart detection.
Background
Fetal heart is the heartbeat of a fetus, fetal heart monitoring and examination is to monitor the condition of the fetus in the uterus by utilizing the principle of ultrasonic waves, and is a main detection means for correctly evaluating the condition of the fetus in the uterus. The heart beat of the fetus is regulated by sympathetic nerve and parasympathetic nerve, and the heart reaction during fetal movement and uterine contraction can be known by the monitoring graph curve formed by the instantaneous heart change of the fetus traced by signals, so as to predict whether the fetus has oxygen deficiency in the uterus.
Fetal heart examination is a necessary program for pregnancy examination, and a plurality of portable household fetal heart monitors are available in the market at present, so that a user can monitor fetal heart at any time in a family environment to judge whether the fetal development is normal. As shown in fig. 1, the fetal heart position x varies with the duration of pregnancy. Specifically, as shown in a in fig. 1, the fetal heart position is when the pregnant woman is pregnant for about four to six months; as shown in b of fig. 1, the fetal heart position when the pregnant woman is about six to eight months pregnant; as shown in fig. 1 c, is the fetal heart position when the pregnant woman is about eight to ten months pregnant. Users who are inexperienced in expertise are likely to find a position where the fetal heart is not correct, even if they spend a lot of time in measurement. Abnormal conditions such as low fetal heart sound and abnormal curve can possibly occur in the fetal heart detected in the position of the non-fetal heart, so that the user can mistakenly think that the fetal development is abnormal, and great mental stress and trouble are caused to the user.
In the prior art, the structure of a fetal heart monitor or a method for detecting a fetal heart is improved, and a method for helping a user to quickly and accurately find an optimal position for detecting the fetal heart is not involved, so that how to help the user to quickly and accurately determine the optimal position for detecting the fetal heart is a technical problem which needs to be solved at present.
Disclosure of Invention
The embodiment of the invention provides a method and a system for determining an optimal position of fetal heart detection, which are used for solving the problem of how to help a user to quickly and accurately determine the optimal position of fetal heart detection in the prior art.
The embodiment of the invention provides a method for determining an optimal position of fetal heart detection, which comprises the following steps:
determining and displaying a plurality of possible fetal heart positions during the current fetal heart detection according to the best fetal heart detection position determined at any time in the recorded previous fetal heart detections and the pregnancy and abdominal circumference during the current fetal heart detection;
detecting a signal corresponding to each of the possible fetal heart positions;
and determining the possible fetal heart position corresponding to the signal with the maximum intensity as the optimal position of the current fetal heart detection according to the detected signals corresponding to the possible fetal heart positions, and displaying the determined optimal position of the current fetal heart detection.
In a possible implementation manner, in the determining method provided in an embodiment of the present invention, the determining, according to the best position of the fetal heart detection determined at any time among the recorded previous fetal heart detections and the pregnancy and the abdominal circumference of the current fetal heart detection, a plurality of possible fetal heart positions during the current fetal heart detection includes:
Constructing an association sphere model for simulating fetal development between two fetal heart detections according to the best fetal heart detection position determined at any time in the past fetal heart detections, the gestational week and the abdominal circumference corresponding to the best fetal heart detection position determined at any time, and the gestational week and the abdominal circumference in the current fetal heart detection;
and determining a plurality of possible fetal heart positions according to the determined optimal fetal heart detection positions at any time and the constructed associated sphere model for simulating fetal development between the two fetal heart detections.
In a possible implementation manner, in the determining method provided in an embodiment of the present invention, the constructing a correlation sphere model simulating fetal development between two fetal heart detections according to the best position of fetal heart detection determined at any one of the previous fetal heart detections, the gestational and abdominal circumferences corresponding to the best position of fetal heart detection determined at any one time, and the gestational and abdominal circumferences during the current fetal heart detection specifically includes:
determining the sphere radius of a sphere model for simulating the development of a fetus corresponding to any fetal heart detection according to the gestational and abdominal circumferences of the fetus during any fetal heart detection;
determining the sphere radius of a corresponding sphere model simulating the development of the fetus during the fetal heart detection according to the pregnancy and the abdominal circumference during the fetal heart detection;
Determining the distance between the spherical centers of the spherical models which respectively correspond to the simulated fetal development during any one time of fetal heart detection and the current time of fetal heart detection according to the gestational weeks during two times of fetal heart detection;
and constructing a related sphere model which has the same section and simulates the development of the fetus between the two fetal heart detections according to the determined sphere radius of the sphere model which respectively corresponds to the simulated fetal development during the two fetal heart detections and the distance between the sphere centers of the sphere models which respectively correspond to the simulated fetal development during any one fetal heart detection and the current fetal heart detection.
In a possible implementation manner, in the above determining method provided by an embodiment of the present invention, the determining, according to the any determined optimal position of the fetal heart detection and the constructed association sphere model for simulating fetal development between the two fetal heart detections, a plurality of possible fetal heart positions includes:
determining the offset of the fetal heart position during the current fetal heart detection relative to the optimal fetal heart detection position determined at any time according to the determined sphere radius of the corresponding sphere model for simulating the fetal development during any time of fetal heart detection, the sphere radius of the corresponding sphere model for simulating the fetal development during the current fetal heart detection and the distance between the sphere centers of the corresponding sphere models for simulating the fetal development during any time of fetal heart detection and the current fetal heart detection;
Determining a sector area with the vertex angle of 90 degrees by taking the tire center detection optimal position determined at any time as a vertex and the determined offset as a radius, wherein the middle point of the circular arc of the sector area is positioned right below the tire center detection optimal position determined at any time;
the sector area boundary is determined as a plurality of possible locations where a fetal heart may exist.
In a possible implementation manner, in the above determining method provided in an embodiment of the present invention, the detecting signals corresponding to the possible fetal heart positions specifically includes:
and simultaneously detecting sound signals corresponding to the possible fetal heart positions by using a microphone array.
In a possible implementation manner, in the determining method provided in an embodiment of the present invention, before determining, according to the detected signals corresponding to each possible fetal heart position, a possible fetal heart position corresponding to a signal with the highest intensity as an optimal position for this fetal heart detection, the method further includes:
and filtering the environmental noise and the maternal heartbeat sound in the sound signals corresponding to the possibly existing fetal heart positions and simultaneously detected by using the microphone array.
In a possible implementation manner, in the above determining method provided in an embodiment of the present invention, the detecting signals corresponding to the possible fetal heart positions specifically includes:
And sequentially detecting fetal heart signals corresponding to the possible fetal heart positions by using a fetal heart detector.
In a possible implementation manner, in the above determining method provided in the embodiment of the present invention, the method further includes:
and measuring the fetal heart value of the optimal position of the current fetal heart detection by using a fetal heart meter according to the displayed determined optimal position of the current fetal heart detection.
In a possible implementation manner, in the above determining method provided in the embodiment of the present invention, the method further includes:
determining sound signals with the maximum intensity and sound signals with the minimum intensity from sound signals corresponding to the possible fetal heart positions detected by a microphone array;
determining the difference value of the sound signal with the maximum intensity and the sound signal with the minimum intensity as a fetal heart signal;
and determining the reciprocal of the time difference between two adjacent maximum values determined after the fetal heart signal is squared as the fetal heart value of the current best position for detecting the fetal heart.
The embodiment of the invention also provides a system for determining the optimal position for fetal heart monitoring, which comprises:
the processor is used for determining a plurality of possible fetal heart positions during the current detection according to the best fetal heart detection position determined at any time in the recorded previous fetal heart detections and the pregnancy and abdominal circumference during the current fetal heart detection; determining the possible fetal heart position corresponding to the signal with the maximum intensity as the best position for detecting the current fetal heart according to the detected signals corresponding to the possible fetal heart positions;
A detector for detecting a signal corresponding to each of said possible fetal heart locations;
and the display is used for displaying a plurality of possible fetal heart positions during the detection and displaying the determined optimal position of the fetal heart detection.
In a possible implementation manner, in the above determining system provided in the embodiment of the present invention, the processor is specifically configured to construct an association sphere model simulating fetal development between two fetal heart detections, according to the best fetal heart detection position determined at any one of the previous fetal heart detections, the pregnancy and the abdominal circumference corresponding to the best fetal heart detection position determined at any one of the previous fetal heart detections, and the pregnancy and the abdominal circumference during the current fetal heart detection; and determining a plurality of possible fetal heart positions according to the determined optimal fetal heart detection positions at any time and the constructed associated sphere model for simulating fetal development between the two fetal heart detections.
In a possible implementation manner, in the above determining system provided in an embodiment of the present invention, the processor is specifically configured to determine, according to the gestational period and the abdominal circumference of any fetal heart detection time, a sphere radius of a sphere model that simulates fetal development during any fetal heart detection time; determining the sphere radius of a corresponding sphere model simulating the development of the fetus during the fetal heart detection according to the pregnancy and the abdominal circumference during the fetal heart detection; determining the distance between the spherical centers of the spherical models which respectively correspond to the simulated fetal development during any one time of fetal heart detection and the current time of fetal heart detection according to the gestational weeks during two times of fetal heart detection; and constructing a related sphere model which has the same section and simulates the development of the fetus between the two fetal heart detections according to the determined sphere radius of the sphere model which respectively corresponds to the simulated fetal development during the two fetal heart detections and the distance between the sphere centers of the sphere models which respectively correspond to the simulated fetal development during any one fetal heart detection and the current fetal heart detection.
In a possible implementation manner, in the above determining system provided in the embodiment of the present invention, the processor is specifically configured to determine an offset of the fetal heart position at the current fetal heart detection with respect to the optimal fetal heart detection position at any time, according to the determined sphere radius of the corresponding sphere model for simulating fetal development at any time of the fetal heart detection, the determined sphere radius of the corresponding sphere model for simulating fetal development at the current fetal heart detection, and the distances between the sphere centers of the corresponding sphere models for simulating fetal development at any time of the fetal heart detection and at the current fetal heart detection; determining a sector area with the vertex angle of 90 degrees by taking the tire center detection optimal position determined at any time as a vertex and the determined offset as a radius, wherein the middle point of the circular arc of the sector area is positioned right below the tire center detection optimal position determined at any time; the sector area boundary is determined as a plurality of possible locations where a fetal heart may exist.
In a possible implementation manner, in the above determination system provided by the embodiment of the present invention, the detector may be a detector capable of simultaneously detecting fetal heart signals of at least two positions or multiple positions, for example, a microphone array, for simultaneously detecting fetal heart signals of at least two positions or multiple positions, for example, sound signals corresponding to each of the possible fetal heart positions.
In a possible implementation manner, in the above determining system provided by the embodiment of the present invention, the processor is further configured to filter the ambient noise and the maternal heartbeat sound in each of the sound signals corresponding to the possibly existing fetal heart positions detected simultaneously by using the microphone array.
In a possible implementation manner, in the above determination system provided in the embodiment of the present invention, the detector is a fetal heart monitor, and is specifically configured to sequentially detect a fetal heart signal corresponding to each of the possibly existing fetal heart positions.
In a possible implementation manner, in the above determining system provided in the embodiment of the present invention, the determining system further includes: and the fetal heart instrument is used for measuring the fetal heart value of the optimal position of the current fetal heart detection according to the displayed determined optimal position of the current fetal heart detection.
In a possible implementation manner, in the above determining system provided by the embodiment of the present invention, the processor is further configured to determine, from among the sound signals corresponding to the possibly existing fetal heart positions detected simultaneously by using the microphone array, a sound signal with the highest intensity and a sound signal with the lowest intensity; determining the difference value of the sound signal with the maximum intensity and the sound signal with the minimum intensity as a fetal heart signal; and determining the reciprocal of the time difference between two adjacent maximum values determined after the fetal heart signal is squared as the fetal heart value of the current best position for detecting the fetal heart.
The invention has the following beneficial effects:
the embodiment of the invention provides a method and a system for determining an optimal position of fetal heart detection, which comprises the following steps: determining and displaying a plurality of possible fetal heart positions during the current fetal heart detection according to the best fetal heart detection position determined at any time in the recorded previous fetal heart detections and the pregnancy and abdominal circumference during the current fetal heart detection; detecting signals corresponding to each possible fetal heart position; and determining the possible fetal heart position corresponding to the signal with the maximum intensity as the optimal position of the current fetal heart detection according to the detected signals corresponding to the possible fetal heart positions, and displaying the determined optimal position of the current fetal heart detection. The method comprises the steps of determining a plurality of positions of the fetal heart possibly existing in the fetal heart detection based on the optimal position of the fetal heart detection determined at any time in the past fetal heart detection and the pregnancy and abdominal circumference in the current fetal heart detection, determining the optimal position of the current fetal heart detection from the plurality of positions of the fetal heart possibly existing, and displaying the determined optimal position of the current fetal heart detection, so that a user is helped to quickly and accurately determine the optimal position of the fetal heart detection.
Drawings
FIG. 1 is a schematic representation of fetal heart position for different gestational weeks;
FIG. 2 is a flowchart of a method for determining an optimal position for fetal heart detection according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a correlation sphere model for simulating fetal development between two fetal heart tests provided by an embodiment of the present invention;
FIG. 4 is a schematic view of a plurality of possible fetal heart locations provided by an embodiment of the present invention;
fig. 5 is a schematic diagram of simultaneously detecting sound signals corresponding to each possible fetal heart position by using a microphone array according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a system for determining an optimal position for fetal heart detection according to an embodiment of the present invention.
Detailed Description
The following describes in detail specific embodiments of a method and a system for determining an optimal position of a tire center detection according to embodiments of the present invention with reference to the accompanying drawings.
The method for determining the optimal position of fetal heart detection provided by the embodiment of the invention, as shown in fig. 2, specifically comprises the following steps:
s201, determining and displaying a plurality of possible fetal heart positions during the current fetal heart detection according to the best fetal heart detection position determined at any time in the recorded previous fetal heart detections and the pregnancy and abdominal circumference during the current fetal heart detection;
s202, detecting signals corresponding to the positions of the fetal heart possibly existing;
S203, according to the detected signals corresponding to the positions of the possible fetal hearts, determining the possible fetal heart position corresponding to the signal with the maximum strength as the optimal position for the current fetal heart detection, and displaying the determined optimal position for the current fetal heart detection.
Specifically, in the above determining method provided in the embodiment of the present invention, because a plurality of possible fetal heart positions in the current fetal heart detection are determined based on the optimal fetal heart detection position determined at any time in the past fetal heart detections and the pregnancy and abdominal circumference in the current fetal heart detection, the optimal fetal heart detection position is determined from the plurality of possible fetal heart positions, and the determined optimal fetal heart detection position is displayed, the user is helped to quickly and accurately determine the optimal fetal heart detection position.
In a specific implementation, in the above determining method provided in the embodiment of the present invention, step S201 determines, according to the best position of the fetal heart detection determined at any time among the recorded previous fetal heart detections and the pregnancy and abdominal circumference of the current fetal heart detection, a plurality of possible fetal heart positions during the current fetal heart detection, which may be specifically implemented by the following manners:
constructing an association sphere model for simulating fetal development between two fetal heart detections according to the best fetal heart detection position determined at any time in the past fetal heart detections, the gestational and abdominal circumferences corresponding to the best fetal heart detection position determined at any time, and the gestational and abdominal circumferences in the current fetal heart detection;
And determining a plurality of possible fetal heart positions according to the determined optimal fetal heart detection positions at any time and the constructed associated sphere model simulating fetal development between the two fetal heart detections.
It should be noted that, if the optimal fetal heart detection position determined at any time has a corresponding spherical model simulating fetal development, step S201 determines a plurality of possible fetal heart positions during the current fetal heart detection according to the optimal fetal heart detection position determined at any time in the recorded past fetal heart detections and the pregnancy and abdominal circumferences during the current fetal heart detection, and may also be implemented by the following methods:
constructing a correlation sphere model for simulating fetal development between two fetal heart detections according to the best fetal heart detection position determined at any time in the past fetal heart detections, the gestational week corresponding to the best fetal heart detection position determined at any time, the sphere model for simulating fetal development, and the gestational week and abdominal circumference in the current fetal heart detection;
and determining a plurality of possible fetal heart positions according to the determined optimal fetal heart detection positions at any time and the constructed associated sphere model simulating fetal development between the two fetal heart detections.
In specific implementation, in a specific implementation manner of step S201 of the determining method provided in an embodiment of the present invention, an association sphere model for simulating fetal development between two fetal heart detections is constructed according to the optimal position of fetal heart detection determined at any time in all the fetal heart detections, the pregnancy and the abdominal circumference corresponding to the optimal position of fetal heart detection determined at any time, and the pregnancy and the abdominal circumference in the current fetal heart detection, which may be implemented specifically by the following manners:
Determining the sphere radius of a corresponding sphere model simulating the development of the fetus in any fetal heart detection according to the pregnancy and abdominal circumference in any fetal heart detection;
determining the sphere radius of a corresponding sphere model simulating the development of the fetus during the fetal heart detection according to the pregnancy and the abdominal circumference during the fetal heart detection;
determining the distance between the spherical centers of the spherical models which respectively correspond to the simulated fetal development during any one time of fetal heart detection and the current time of fetal heart detection according to the gestational weeks during two times of fetal heart detection;
and constructing a correlation sphere model for simulating the development of the fetus between the two fetal heart detections with the same section according to the determined sphere radius of the sphere model respectively corresponding to the simulated development of the fetus during the two fetal heart detections and the distance between the sphere centers of the sphere models respectively corresponding to the simulated development of the fetus during any one fetal heart detection and the current fetal heart detection.
Specifically, in the above determining method provided by the embodiment of the present invention, it is assumed that the optimal position for detecting the fetal heart determined at any time is p, and the gestational week corresponding to the optimal position p for detecting the fetal heart determined at any time is w0The abdominal circumference is b0The sphere radius of the corresponding sphere model for simulating the development of the fetus during any fetal heart detection is r 0(ii) a The gestational period during the fetal heart test is w1The abdominal circumference is b1The sphere radius of the corresponding sphere model for simulating the development of the fetus in the fetal heart detection is r1. Then, as shown in fig. 3, the sphere radius of the corresponding sphere model simulating the development of the fetus at any one fetal heart detection is r0Can use the formula
Calculating to obtain; the sphere radius of the corresponding sphere model for simulating the development of the fetus in the fetal heart detection is r1Can use the formula
And (4) calculating. Wherein,
and
is a correction factor which is an empirical value obtained after a large number of individual experiments are carried out, and can eliminate the error when the abdominal circumference is used for calculating the sphere radius of the sphere model for simulating the development of the fetus.
Further, assume that the distance between the centers of the spherical models simulating the development of the fetus corresponding to any one of the fetal heart tests and the current fetal heart test is
Then the pregnancy week w corresponding to the optimal position p is detected by detecting the fetal heart determined at any one time0And the gestational period w in the current fetal heart test1Substitution into the formula:
the distance between the ball centers can be calculated
Where a is a constant coefficient and is an empirical value obtained after a number of experiments.
Through the calculation, the sphere radius r of the corresponding sphere model for simulating the development of the fetus during any fetal heart detection is obtained 0The sphere radius r of the sphere model corresponding to the simulation of the fetal development during the fetal heart detection1And the distance between the spherical centers of the spherical models simulating the development of the fetus corresponding to the fetal heart detection at any time and the current fetal heart detection time respectively
Obviously based on the parameter r0、r1And, and
a plurality of related sphere models which are used for representing the simulated fetal development between the two fetal heart detections can be constructed. Preferably, in order to obtain the possible fetal heart position in the current fetal heart detection, as shown in fig. 3, the parameter r may be based on0、r1And, and
and constructing a correlation sphere model for simulating the development of the fetus between two fetal heart detections with the same section q.
Specifically, in a specific implementation manner of step S201 of the above determining method provided in the embodiment of the present invention, a plurality of possible fetal heart positions are determined according to any determined optimal fetal heart position and a constructed association sphere model simulating fetal development between two fetal heart detections, as shown in fig. 3, which may be implemented specifically by the following manners:
according to the determined sphere radius r of the corresponding sphere model for simulating the development of the fetus during any fetal heart detection0The sphere radius r of the sphere model corresponding to the simulation of the fetal development during the fetal heart detection 1And the distance between the spherical centers of the spherical models simulating the development of the fetus corresponding to the fetal heart detection at any time and the current fetal heart detection time respectively
Using formulas
Determining the offset r of the fetal heart position in the current fetal heart detection relative to the optimal fetal heart detection position p determined at any timeΔWherein Δ r ═ r1-r0；
As shown in fig. 4, the optimum position p for detecting the fetal heart determined at any one time is set as a vertex, and the determined offset r is usedΔFor the radius, a sector area with a vertex angle of 90 degrees is determined. Preferably, in order to more accurately find the position of the fetal heart, the middle point of the circular arc of the sector area is positioned right below any determined optimal position p for detecting the fetal heart;
the sector area boundary is determined as a number of possible locations where the fetal heart may exist.
Specifically, in the above determining method provided in the embodiment of the present invention, the step S202 detects signals corresponding to each possible tire center position, and may be implemented in the following manner, but is not limited thereto. For example, an array of microphones may be used to simultaneously detect sound signals corresponding to each possible fetal heart position. In another example, a fetal heart meter can be used to sequentially detect fetal heart signals corresponding to the possible fetal heart positions.
Preferably, in the above determining method provided by the embodiment of the present invention, when the implementation manner of step S202 is to use the microphone array to simultaneously detect the sound signals corresponding to the positions of the possible fetal centers, before determining the possible fetal center position corresponding to the signal with the highest intensity as the optimal position for the current fetal center detection according to the detected signal corresponding to the positions of the possible fetal centers in step S203, the method may further include: the method comprises the steps of filtering environmental noise and maternal heartbeat sound in sound signals which are detected by a microphone array at the same time and possibly correspond to fetal heart positions, so as to obtain fetal heart signals with good quality.
Further, in the above-mentioned determining method according to the embodiment of the present invention, after S203 determines the possible position of the tire center corresponding to the signal with the highest intensity as the current tire center detection optimal position according to the signals corresponding to the detected possible tire center positions, and displays the determined current tire center detection optimal position, the tire center value of the current tire center detection optimal position may be obtained by the following methods, but is not limited thereto:
for example, the fetal heart value of the current best position for fetal heart detection can be directly measured by a fetal heart meter according to the displayed determined current best position for fetal heart detection. Or, for example, a microphone array can be used for indirectly obtaining the fetal heart value of the optimal position of the fetal heart detection.
Specifically, in the determining method provided by the embodiment of the present invention, the microphone array is composed of a plurality of high-precision microphones, and the number and precision of the microphones may be set according to practical situations, which is not limited herein. For example, as shown in fig. 5, the microphone array 501 is composed of 5 high-precision microphones s1、s2、……、s5And (4) forming. Using microphones s of high precision1、s2、……、s5The combined microphone array 501 detects sound signals corresponding to each possible fetal heart position simultaneously. At time t, each microphone s1、s2、……、s5The received sound signals are respectively s1(t)、s2(t)、……、s5(t) each sound signal is s accordingly1(t)、s2(t)、……、s5(t) has a signal intensity of P1(t)、P2(t)、……、P5(t) of (d). Find the strongest sound signal Smax(t) and the weakest sound signal Smin(t) of (d). Due to the weakest signal Smin(t) the component containing fetal heart sound is small, most of which are ambient noise and maternal heartbeat sound, so that the sound signal S with the highest intensity can be obtainedmax(t) sound signal S with minimum intensitymin(t) determining the difference as the fetal heart signal. I.e. for the strongest signal S in the manner described abovemax(t) purifying to obtain fetal heart signal S (t) with good quality, and S (t) Smax(t)-Smin(t) of (d). Of course, it is also possible to directly filter the strongest sound signal SmaxAmbient noise and maternal heartbeat sound in (t) for the strongest sound signal S max(t) purification is carried out, which is not limited herein. Then, squaring the fetal heart signal S (t) with better quality, and according to the fetal heart signal S (t) after squaring2And determining the time difference delta t between two adjacent maximum values, wherein the reciprocal 1/delta t of the time difference delta t is the fetal heart value of the optimal position of the current fetal heart detection.
It should be noted that, in the above determining method provided in the embodiment of the present invention, the microphone array may be used to collect the sound signals at different positions of the abdomen, and to filter out the environmental noise and the mother heartbeat sound in each sound signal, and the position of the microphone corresponding to the sound signal with the maximum strength after filtering may be determined as the optimal position for detecting the fetal heart. The microphone array can be connected with a smart terminal such as a mobile phone through wireless or wired connection, so that the fetal heart detection optimal position is displayed to a user in an abdomen schematic diagram of mobile phone software (APP).
Therefore, in the determination method provided by the embodiment of the invention, based on pure software or a method of assisting microphone array hardware, the changes of the optimal position of the fetal heart detection, the pregnancy circumference and the abdominal circumference are integrated, the optimal position of the fetal heart detection is calculated, and the optimal position is displayed to a user through a mobile phone APP, so that the user is helped to find the optimal position of the fetal heart detection.
Based on the same inventive concept, the embodiment of the present invention further provides a system for determining an optimal position for detecting a fetal heart, and because the system for determining an optimal position for detecting a fetal heart provided by the embodiment of the present invention is similar to the method for determining an optimal position for detecting a fetal heart, the implementation of the system for determining a fetal heart may refer to the implementation of the method for determining a fetal heart, and repeated details are omitted.
The system for determining the optimal position of fetal heart detection provided by the embodiment of the invention, as shown in fig. 6, includes:
a processor 601, configured to determine multiple possible fetal heart positions during current fetal heart detection according to the best fetal heart detection position determined at any time in the recorded past fetal heart detections and the gestational and abdominal circumferences during the current fetal heart detection; determining the possible fetal heart position corresponding to the signal with the maximum intensity as the best position for the current fetal heart detection according to the detected signals corresponding to the possible fetal heart positions;
a detector 602 for detecting a signal corresponding to each possible fetal heart position;
the display 603 is configured to display a plurality of possible positions of the fetal heart during the current detection, and display the determined optimal position of the current fetal heart detection.
Specifically, in the above determination system provided in the embodiment of the present invention, the display 603 may be any product or component with a display function, such as a mobile phone and a computer. When display 603 is the cell-phone, can show a plurality of probably to have fetal heart positions when detecting this in cell-phone APP's belly schematic diagram to and show this fetal heart that determines and detect optimum position, carry out the detection of fetal heart value according to the position that shows in cell-phone APP's belly schematic diagram in order to make things convenient for the user.
In a specific implementation, in the determination system provided in the embodiment of the present invention, the processor 601 may be specifically configured to construct a correlation sphere model simulating fetal development between two fetal heart detections, according to the optimal position of the fetal heart detection determined at any time in the past fetal heart detections, the pregnancy and the abdominal circumference corresponding to the optimal position of the fetal heart detection determined at any time, and the pregnancy and the abdominal circumference in the current fetal heart detection; and determining a plurality of possible fetal heart positions according to the determined optimal fetal heart detection positions at any time and the constructed associated sphere model simulating fetal development between the two fetal heart detections.
In specific implementation, in the above determining system provided in the embodiment of the present invention, the processor 601 may be further specifically configured to determine, according to the gestational period and the abdominal circumference during any fetal heart detection, a sphere radius of a sphere model for simulating fetal development during any fetal heart detection; determining the sphere radius of a corresponding sphere model simulating the development of the fetus during the fetal heart detection according to the pregnancy and the abdominal circumference during the fetal heart detection; determining the distance between the spherical centers of the spherical models which respectively correspond to the simulated fetal development during any one time of fetal heart detection and the current time of fetal heart detection according to the gestational weeks during two times of fetal heart detection; and constructing a correlation sphere model for simulating the development of the fetus between the two fetal heart detections with the same section according to the determined sphere radius of the sphere model respectively corresponding to the simulated development of the fetus during the two fetal heart detections and the distance between the sphere centers of the sphere models respectively corresponding to the simulated development of the fetus during any one fetal heart detection and the current fetal heart detection.
In specific implementation, in the above determining system provided in the embodiment of the present invention, the processor 601 may further be specifically configured to determine an offset of the fetal heart position during current fetal heart detection relative to any determined optimal fetal heart detection position according to the determined sphere radius of the corresponding sphere model for simulating fetal development during any fetal heart detection, the determined sphere radius of the corresponding sphere model for simulating fetal development during current fetal heart detection, and distances between the sphere centers of the corresponding sphere models for simulating fetal development during any fetal heart detection and during current fetal heart detection; determining a sector area with the vertex angle of 90 degrees by taking the optimal position of the tire center detection determined at any time as a vertex and the determined offset as a radius, wherein the middle point of the circular arc of the sector area is positioned right below the optimal position of the tire center detection determined at any time; the sector area boundary is determined as a number of possible locations where the fetal heart may exist.
In practical implementation, in the above determination system provided by the embodiment of the present invention, the detector 602 may be a microphone array, and is configured to detect sound signals corresponding to each possible fetal heart position simultaneously. The fetal heart detector can also be used for sequentially detecting fetal heart signals corresponding to all possible fetal heart positions. The fetal heart monitor may be a conventional doppler effect ultrasonic fetal heart monitor, or may be a latest passive non-ultrasonic fetal heart monitor, which is not limited herein.
Preferably, in the above determining system provided by the embodiment of the present invention, the processor 601 may be further configured to filter the environmental noise and the maternal heartbeat sound in the sound signals corresponding to the possible fetal heart positions detected simultaneously by using the microphone array.
In specific implementation, in the above determining system provided in the embodiment of the present invention, the determining system may further include: and the fetal heart meter 604 is used for measuring the fetal heart value of the optimal position of the current fetal heart detection according to the displayed determined optimal position of the current fetal heart detection. The fetal heart monitor can be a traditional Doppler effect ultrasonic fetal heart monitor, and can also be a latest passive non-ultrasonic fetal heart monitor, which is not limited herein.
In a specific implementation, in the above determining system provided in the embodiment of the present invention, the processor 601 may further be configured to determine, from among the sound signals corresponding to the possible fetal heart positions detected by using the microphone array at the same time, a sound signal with the maximum intensity and a sound signal with the minimum intensity; determining the difference value between the sound signal with the maximum intensity and the sound signal with the minimum intensity as a fetal heart signal; and determining the reciprocal of the time difference between two adjacent maximum values determined after the fetal heart signal is squared as the fetal heart value of the optimal position for the fetal heart detection at the time.
The method and the system for determining the optimal position of the fetal heart detection provided by the embodiment of the invention comprise the following steps: determining and displaying a plurality of possible fetal heart positions during the current fetal heart detection according to the best fetal heart detection position determined at any time in the recorded previous fetal heart detections and the pregnancy and abdominal circumference during the current fetal heart detection; detecting signals corresponding to each possible fetal heart position; and determining the possible fetal heart position corresponding to the signal with the maximum intensity as the optimal position of the current fetal heart detection according to the detected signals corresponding to the possible fetal heart positions, and displaying the determined optimal position of the current fetal heart detection. The method comprises the steps of determining a plurality of positions of the fetal heart possibly existing in the fetal heart detection based on the optimal position of the fetal heart detection determined at any time in the past fetal heart detection and the pregnancy and abdominal circumference in the current fetal heart detection, determining the optimal position of the current fetal heart detection from the plurality of positions of the fetal heart possibly existing, and displaying the determined optimal position of the current fetal heart detection, so that a user is helped to quickly and accurately determine the optimal position of the fetal heart detection.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (16)
1. A method for determining an optimal position for fetal heart detection, comprising:
determining and displaying a plurality of possible fetal heart positions during the current fetal heart detection according to the best fetal heart detection position determined at any time in the recorded previous fetal heart detections and the pregnancy and abdominal circumference during the current fetal heart detection; the method specifically comprises the following steps:
constructing an association sphere model for simulating fetal development between two fetal heart detections according to the best fetal heart detection position determined at any time in the past fetal heart detections, the gestational week and the abdominal circumference corresponding to the best fetal heart detection position determined at any time, and the gestational week and the abdominal circumference in the current fetal heart detection;
determining a plurality of possible fetal heart positions according to the optimal fetal heart detection positions determined at any time and the constructed associated sphere model for simulating fetal development between the two fetal heart detections;
detecting a signal corresponding to each of the possible fetal heart positions;
and determining the possible fetal heart position corresponding to the signal with the maximum intensity as the optimal position of the current fetal heart detection according to the detected signals corresponding to the possible fetal heart positions, and displaying the determined optimal position of the current fetal heart detection.
2. The method for determining according to claim 1, wherein the constructing of the association sphere model for simulating fetal development between two fetal heart detections according to the best position of fetal heart detection determined at any one of the previous fetal heart detections, the pregnancy and the abdomen corresponding to the best position of fetal heart detection determined at any one of the previous fetal heart detections, and the pregnancy and the abdomen at the current fetal heart detection includes:
determining the sphere radius of a sphere model for simulating the development of a fetus corresponding to any fetal heart detection according to the gestational and abdominal circumferences of the fetus during any fetal heart detection;
determining the sphere radius of a corresponding sphere model simulating the development of the fetus during the fetal heart detection according to the pregnancy and the abdominal circumference during the fetal heart detection;
determining the distance between the spherical centers of the spherical models which respectively correspond to the simulated fetal development during any one time of fetal heart detection and the current time of fetal heart detection according to the gestational weeks during two times of fetal heart detection;
and constructing a related sphere model which has the same section and simulates the development of the fetus between the two fetal heart detections according to the determined sphere radius of the sphere model which respectively corresponds to the simulated fetal development during the two fetal heart detections and the distance between the sphere centers of the sphere models which respectively correspond to the simulated fetal development during any one fetal heart detection and the current fetal heart detection.
3. The method of claim 2, wherein determining a plurality of possible fetal heart positions according to the determined optimal fetal heart detection positions and the constructed association sphere model for simulating fetal development between the two fetal heart detections comprises:
determining the offset of the fetal heart position during the current fetal heart detection relative to the optimal fetal heart detection position determined at any time according to the determined sphere radius of the corresponding sphere model for simulating the fetal development during any time of fetal heart detection, the sphere radius of the corresponding sphere model for simulating the fetal development during the current fetal heart detection and the distance between the sphere centers of the corresponding sphere models for simulating the fetal development during any time of fetal heart detection and the current fetal heart detection;
determining a sector area with the vertex angle of 90 degrees by taking the tire center detection optimal position determined at any time as a vertex and the determined offset as a radius, wherein the middle point of the circular arc of the sector area is positioned right below the tire center detection optimal position determined at any time;
the sector area boundary is determined as a plurality of possible locations where a fetal heart may exist.
4. The method according to claim 1, wherein said detecting a signal corresponding to each of said possible fetal heart positions comprises:
and simultaneously detecting sound signals corresponding to the possible fetal heart positions by using a microphone array.
5. The method according to claim 4, wherein before determining the possible fetal heart position corresponding to the signal with the highest intensity as the best position for the current fetal heart detection according to the detected signals corresponding to the possible fetal heart positions, the method further comprises:
and filtering the environmental noise and the maternal heartbeat sound in the sound signals corresponding to the possibly existing fetal heart positions and simultaneously detected by using the microphone array.
6. The method according to claim 1, wherein said detecting a signal corresponding to each of said possible fetal heart positions comprises:
and sequentially detecting fetal heart signals corresponding to the possible fetal heart positions by using a fetal heart detector.
7. The determination method of any one of claims 1-6, further comprising:
and measuring the fetal heart value of the optimal position of the current fetal heart detection by using a fetal heart meter according to the displayed determined optimal position of the current fetal heart detection.
8. The determination method according to claim 4 or 5, further comprising:
determining sound signals with the maximum intensity and sound signals with the minimum intensity from sound signals corresponding to the possible fetal heart positions detected by a microphone array;
determining the difference value of the sound signal with the maximum intensity and the sound signal with the minimum intensity as a fetal heart signal;
and determining the reciprocal of the time difference between two adjacent maximum values determined after the fetal heart signal is squared as the fetal heart value of the current best position for detecting the fetal heart.
9. A system for determining an optimal position for fetal heart detection, comprising:
the processor is used for determining a plurality of possible fetal heart positions during the current detection according to the best fetal heart detection position determined at any time in the recorded previous fetal heart detections and the pregnancy and abdominal circumference during the current fetal heart detection; determining the possible fetal heart position corresponding to the signal with the maximum intensity as the best position for detecting the current fetal heart according to the detected signals corresponding to the possible fetal heart positions;
the processor is specifically used for constructing a correlation sphere model for simulating fetal development between two fetal heart detections according to the best fetal heart detection position determined at any time in the past fetal heart detections, the pregnancy and the abdominal circumference corresponding to the best fetal heart detection position determined at any time, and the pregnancy and the abdominal circumference in the current fetal heart detection; determining a plurality of possible fetal heart positions according to the optimal fetal heart detection positions determined at any time and the constructed associated sphere model for simulating fetal development between the two fetal heart detections;
A detector for detecting a signal corresponding to each of said possible fetal heart locations;
and the display is used for displaying a plurality of possible fetal heart positions during the detection and displaying the determined optimal position of the fetal heart detection.
10. The determination system according to claim 9, wherein the processor is specifically configured to determine a sphere radius of a sphere model simulating fetal development at any one fetal heart test according to the pregnancy and abdominal circumference at any one fetal heart test; determining the sphere radius of a corresponding sphere model simulating the development of the fetus during the fetal heart detection according to the pregnancy and the abdominal circumference during the fetal heart detection; determining the distance between the spherical centers of the spherical models which respectively correspond to the simulated fetal development during any one time of fetal heart detection and the current time of fetal heart detection according to the gestational weeks during two times of fetal heart detection; and constructing a related sphere model which has the same section and simulates the development of the fetus between the two fetal heart detections according to the determined sphere radius of the sphere model which respectively corresponds to the simulated fetal development during the two fetal heart detections and the distance between the sphere centers of the sphere models which respectively correspond to the simulated fetal development during any one fetal heart detection and the current fetal heart detection.
11. The system according to claim 10, wherein the processor is specifically configured to determine an offset of the fetal heart position at the current fetal heart detection with respect to the optimal fetal heart detection position at any determined time according to the determined sphere radius of the corresponding sphere model simulating fetal development at any fetal heart detection time, the determined sphere radius of the corresponding sphere model simulating fetal development at this fetal heart detection time, and the distance between the sphere centers of the corresponding sphere models simulating fetal development at any fetal heart detection time and at this fetal heart detection time, respectively; determining a sector area with the vertex angle of 90 degrees by taking the tire center detection optimal position determined at any time as a vertex and the determined offset as a radius, wherein the middle point of the circular arc of the sector area is positioned right below the tire center detection optimal position determined at any time; the sector area boundary is determined as a plurality of possible locations where a fetal heart may exist.
12. The determination system of claim 9, wherein the detector is a microphone array for simultaneously detecting sound signals corresponding to each of the possible fetal heart locations.
13. The determination system of claim 12 wherein the processor is further configured to filter ambient noise and maternal heartbeat sounds in the sound signals corresponding to each of the possible fetal heart positions detected simultaneously using the microphone array.
14. The determination system of claim 9, wherein said detector is a fetal heart monitor for sequentially detecting fetal heart signals corresponding to each of said possible fetal heart locations.
15. The determination system of any one of claims 9-14, further comprising: and the fetal heart instrument is used for measuring the fetal heart value of the optimal position of the current fetal heart detection according to the displayed determined optimal position of the current fetal heart detection.
16. The determination system according to claim 12 or 13, wherein the processor is further configured to determine, among the sound signals corresponding to the possible fetal heart positions detected simultaneously by using the microphone array, the sound signal with the highest intensity and the sound signal with the lowest intensity; determining the difference value of the sound signal with the maximum intensity and the sound signal with the minimum intensity as a fetal heart signal; and determining the reciprocal of the time difference between two adjacent maximum values determined after the fetal heart signal is squared as the fetal heart value of the current best position for detecting the fetal heart.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8055573B2 (en) * | 2004-07-15 | 2011-11-08 | Flint Hills Resources, L. P. | System method for marketing commodity products electronically |
| CN104706342A (en) * | 2013-12-13 | 2015-06-17 | 中国移动通信集团辽宁有限公司 | Remote fetal heart monitoring method and system |
| CN204708879U (en) * | 2015-04-08 | 2015-10-21 | 南京伟思医疗科技有限责任公司 | A kind of integral type doppler baby ' s heart instrument carrying out expanded application |
| CN205514615U (en) * | 2016-02-02 | 2016-08-31 | 美的集团股份有限公司 | Intelligence fetal movement monitoring devices |
| CN106214185A (en) * | 2016-08-23 | 2016-12-14 | 孙艳平 | A kind of full-automatic B ultrasonic anemia of pregnant woman's detecting system and detection method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2008090862A1 (en) * | 2007-01-23 | 2010-05-20 | 株式会社 東北テクノアーチ | Fetal electrocardiogram signal measuring method and apparatus |
| CN102920484A (en) * | 2012-11-12 | 2013-02-13 | 天津九安医疗电子股份有限公司 | Fetal heart monitoring device |
| US20160213349A1 (en) * | 2013-09-10 | 2016-07-28 | Here Med Ltd. | Fetal heart rate monitoring system |
| JP2015171476A (en) * | 2014-03-12 | 2015-10-01 | 日立アロカメディカル株式会社 | Ultrasonic diagnostic device and ultrasonic image processing method |
| CN105700488B (en) * | 2014-11-27 | 2018-08-21 | 中国移动通信集团公司 | A kind of processing method and system of target body action message |
| CN104905819A (en) * | 2015-05-26 | 2015-09-16 | 广州三瑞医疗器械有限公司 | Conformal fetal heart monitoring sensor and work method thereof |
| CN104939814A (en) * | 2015-06-24 | 2015-09-30 | 广州三瑞医疗器械有限公司 | Integrated pregnancy test device and data processing method thereof |
| CN105496462B (en) * | 2016-01-19 | 2018-08-21 | 深圳市理邦精密仪器股份有限公司 | Fetal rhythm localization method and device |
| CN106236146B (en) * | 2016-08-30 | 2019-04-12 | 苏州涵轩信息科技有限公司 | A kind of movement relation processing method and processing device |
-
2016
- 2016-12-27 CN CN201611229064.4A patent/CN108236476B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8055573B2 (en) * | 2004-07-15 | 2011-11-08 | Flint Hills Resources, L. P. | System method for marketing commodity products electronically |
| CN104706342A (en) * | 2013-12-13 | 2015-06-17 | 中国移动通信集团辽宁有限公司 | Remote fetal heart monitoring method and system |
| CN204708879U (en) * | 2015-04-08 | 2015-10-21 | 南京伟思医疗科技有限责任公司 | A kind of integral type doppler baby ' s heart instrument carrying out expanded application |
| CN205514615U (en) * | 2016-02-02 | 2016-08-31 | 美的集团股份有限公司 | Intelligence fetal movement monitoring devices |
| CN106214185A (en) * | 2016-08-23 | 2016-12-14 | 孙艳平 | A kind of full-automatic B ultrasonic anemia of pregnant woman's detecting system and detection method thereof |
Non-Patent Citations (2)
| Title |
|---|
| Marsden, Alison L.;Feinstein, Jeffrey A..Computational modeling and engineering in pediatric and congenital heart disease.《CURRENT OPINION IN PEDIATRICS 》.2015,第27卷(第5期),第587-596页. * |
| 陆景等.胚胎心脏发育及其影像学评价的研究进展.《中华影像学杂志》.2009,899-902. * |
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