A method and system for monitoring fetal head descent

Abstract

This invention provides a method and system for monitoring fetal head descent. The method includes: deploying a magnetic field transmitter to the abdomen of the mother and a back sensor to the sacrum and coccyx; using measurement sensors to perform external and internal measurements on the mother to obtain measurement data of the anterior superior iliac spine and mid-pelvis; using an ultrasound probe to perform a longitudinal section on the perineum to obtain the maximum cross-section of the pubic symphysis and to acquire the position of the lower edge of the pubic symphysis and the position of the lowest point of the fetal head; standardizing the coordinates of the lower edge of the pubic symphysis and the position of the lowest point of the fetal head; and obtaining the numerical value and direction of the presenting part of the fetus based on the standardized coordinates of the lower edge of the pubic symphysis, the standardized coordinates of the lowest point of the fetal head, the measurement data of the anterior superior iliac spine, and the mid-pelvis, thus obtaining fetal head descent monitoring data. This invention can analyze the fetal head according to the actual situation of the mother, eliminating the need for manual digital examination, reducing errors caused by individual differences among mothers, and improving the accuracy of fetal head descent monitoring.

Description

Technical Field

[0001] This invention relates to the field of obstetric labor monitoring technology, and in particular to a method and system for monitoring fetal head descent. Background Technology

[0002] Childbirth refers to the emergence of a new individual from the mother's body; specifically, it refers to the period and process of the fetus separating from the mother's body as an independent individual. The entire process of childbirth is divided into three stages, also known as the three phases of labor: the first stage is the cervical dilation stage; the second stage is the fetal expulsion stage; and the third stage is the placental expulsion stage, which refers to the process from the delivery of the fetus to the expulsion of the placenta. During childbirth, the distance of fetal head descent reflects the presenting part of the fetus and is one of the key indicators for vaginal delivery. Slow or stalled descent of the fetal head can lead to dystocia; therefore, monitoring fetal head descent is very important during childbirth.

[0003] Currently, existing fetal head descent monitoring technologies often suffer from significant errors due to individual differences among mothers, affecting the accuracy of the monitoring results. Therefore, this invention proposes a fetal head descent monitoring method and system that can monitor and analyze based on the actual situation of the mother, and eliminates the need for manual examination, thereby reducing errors caused by individual differences among mothers and improving the accuracy of fetal head descent monitoring. Summary of the Invention

[0004] The purpose of this invention is to provide a method and system for monitoring fetal head descent, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for monitoring fetal head descent, comprising:

[0006] The magnetic field transmitter was placed on the abdomen of the mother, and the back sensor was placed on the sacrum and coccyx of the mother.

[0007] External and internal measurements were performed on the parturient using measurement sensors to obtain measurement data of the anterior superior iliac spine and midpelvis.

[0008] The perineum of the pregnant woman is longitudinally sectioned using an ultrasound probe to obtain the largest section of the pubic symphysis and to obtain the position of the lower edge of the pubic symphysis and the lowest point of the fetal head.

[0009] The coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head were standardized to obtain the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head.

[0010] Based on the standardized coordinates of the lower edge of the pubic symphysis, the standardized coordinates of the lowest point of the fetal head, the measurement data of the anterior superior iliac spine, and the measurement data of the midpelvis, the numerical value and direction of the fetal presenting position are obtained, thus obtaining the fetal head descent monitoring data.

[0011] Preferably, when deploying the magnetic field transmitter to the mother's abdomen, the deployment position is analyzed and adjusted, including: placing the magnetic field transmitter at any position on the mother's abdomen, analyzing whether the mother's pelvis is within the effective range of the magnetic field; if the mother's pelvis is not within the effective range of the magnetic field, adjusting the position of the magnetic field transmitter according to the first adjustment scheme until the mother's pelvis appears within the effective range of the magnetic field; if the mother's pelvis is within the effective range of the magnetic field, analyzing the portion of the mother's pelvis within the effective range of the magnetic field to determine whether the mother's pelvis is completely within the effective range of the magnetic field; if the mother's pelvis is not completely within the effective range of the magnetic field, adjusting the position of the magnetic field transmitter according to the second adjustment scheme until the mother's pelvis is completely within the effective range of the magnetic field.

[0012] Preferably, when using measurement sensors to perform external and internal measurements on the parturient, the position of the magnetic field transmitter remains unchanged. The anterior superior iliac spine measurement data includes: left anterior superior iliac spine measurement data and right anterior superior iliac spine measurement data. During external measurements, the left and right anterior superior iliac spines of the parturient are located using measurement sensors to obtain the left and right anterior superior iliac spine measurement data. The midpelvic measurement data includes: left ischial spine measurement data, right ischial spine measurement data, and midpoint measurement data of the S4 and S5 vertebrae. During internal measurements, the left and right ischial spines of the parturient and the midpoint of the S4 and S5 vertebrae are located using measurement sensors to obtain the left ischial spine measurement data, right ischial spine measurement data, and midpoint measurement data of the S4 and S5 vertebrae.

[0013] Preferably, when locating the left ischial spine, right ischial spine, and midpoint of the 4th and 5th sacral vertebrae of the parturient using measurement sensors, the data is marked three times to obtain initial measurement data for the left ischial spine, the right ischial spine, and the midpoint of the 4th and 5th sacral vertebrae. The positioning mode corresponding to the initial measurement data of the left ischial spine is used as the target reference standard, and the initial measurement data of the left ischial spine is the measurement data of the left ischial spine. Then, based on the location of the back sensor deployed to the sacrococcygeal region of the parturient, the initial measurement data of the right ischial spine and the initial measurement data of the midpoint of the 4th and 5th sacral vertebrae are converted into the positioning mode corresponding to the target reference standard to obtain the measurement data of the right ischial spine and the measurement data of the midpoint of the 4th and 5th sacral vertebrae.

[0014] Preferably, the left and right anterior superior iliac spines of the parturient are located by measuring sensors, and the measurement data of the left and right anterior superior iliac spines are obtained. Then, the back sensors are deployed to the sacrococcygeal region of the parturient for positioning. The measurement data of the left and right anterior superior iliac spines are converted into the positioning mode corresponding to the target reference standard to obtain the standardized measurement data of the left and right anterior superior iliac spines.

[0015] Preferably, when standardizing the coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head, the lower edge of the pubic symphysis and the lowest point of the fetal head are converted to the positioning mode corresponding to the target reference standard based on the location of the back sensor deployed to the sacrococcygeal region of the parturient, so as to obtain the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head.

[0016] Preferably, the value of the presenting part of the fetus is obtained by including:

[0017] The coordinates of the ischial spines are determined by analyzing the standardized coordinates of the lower edge of the pubic symphysis and the measurement data of the anterior superior iliac spine. The midpoint of the interspinous diameter is determined based on the coordinates of the ischial spines. At the same time, the midpoint of the anteroposterior diameter of the midpelvis is determined based on the measurement data of the midpelvis. The midpoint between the midpoint of the interspinous diameter and the midpoint of the anteroposterior diameter of the pelvis is analyzed to determine the center point of the midpelvic plane and obtain the coordinates of the center point of the midpelvic plane.

[0018] Distance analysis was performed based on the coordinates of the center point of the midpelvic plane and the standardized coordinates of the lowest point of the fetal head to obtain the value of the presenting position.

[0019] Preferably, the orientation of the presenting part of the fetus, when acquired, includes:

[0020] Obtaining the coordinates of the center point of the midpelvic plane includes: analyzing and determining the coordinates of the ischial spines based on the standardized coordinates of the lower edge of the pubic symphysis and the measurement data of the anterior superior iliac spine; determining the midpoint of the interspinous diameter based on the coordinates of the ischial spines; determining the midpoint of the anteroposterior diameter of the midpelvis based on the measurement data of the midpelvis; analyzing the midpoint between the midpoint of the interspinous diameter and the midpoint of the anteroposterior diameter of the pelvis; determining the center point of the midpelvic plane; and obtaining the coordinates of the center point of the midpelvic plane.

[0021] Obtain the straight line where the left and right anterior superior iliac spines are located; based on the measurement data of the left and right anterior superior iliac spines, fit the measurement data of the left and right anterior superior iliac spines onto a straight line to determine the straight line where the left and right anterior superior iliac spines are located.

[0022] The distance from the lowest point of the fetal head to the line containing the left and right anterior superior iliac spines is calculated based on the standardized coordinates of the lowest point of the fetal head and the line containing the left and right anterior superior iliac spines, thus obtaining the first judgment distance.

[0023] The distance from the center point of the midpelvic plane to the straight line containing the left and right anterior superior iliac spines is calculated based on the coordinates of the center point of the midpelvic plane and the straight line containing the left and right anterior superior iliac spines, thus obtaining the second judgment distance.

[0024] Analyzing the relationship between the first and second judgment distances, when the first judgment distance is greater than the second judgment distance, the fetal head is below the midpelvic plane, and the presenting position is positive. When the first judgment distance is less than the second judgment distance, the fetal head is above the midpelvic plane, and the presenting position is negative.

[0025] Preferably, during the delivery process, an ultrasound probe is used at a preset frequency to acquire the position of the lower edge of the pubic symphysis and the lowest point of the fetal head, and corresponding fetal head descent monitoring data is acquired based on the position of the lower edge of the pubic symphysis and the lowest point of the fetal head; after obtaining the fetal head descent monitoring data, a fitting analysis is performed on the current fetal head descent monitoring data and historical fetal head descent monitoring data to acquire changes in the presenting part of the fetus, and the delivery prediction is made based on the changes in the presenting part of the fetus and the time of acquiring the position of the lower edge of the pubic symphysis and the lowest point of the fetal head, and medical reminders are given based on the delivery prediction;

[0026] The preset frequency is dynamically changed. In the early stage of fetal head descent monitoring, the position of the lower edge of the pubic symphysis and the lowest point of the fetal head are obtained by ultrasound probe according to the preset frequency. After obtaining multiple historical fetal head descent monitoring data, the progress of the mother's delivery is determined based on the historical fetal head descent monitoring data, and the frequency is adjusted in stages according to the progress of the mother's delivery.

[0027] A fetal head descent monitoring system includes: a monitoring deployment module, a first acquisition module, a second acquisition module, a standard processing module, and a monitoring analysis module;

[0028] The monitoring deployment module is used to deploy the magnetic field transmitter to the abdomen of the mother and the back sensor to the sacrum and coccyx of the mother.

[0029] The first acquisition module is used to perform external and internal measurements on the parturient using measurement sensors to obtain anterior superior iliac spine measurement data and mid-pelvis measurement data;

[0030] The second acquisition module is used to make a longitudinal section in the perineum of the pregnant woman using an ultrasound probe to obtain the maximum cross-section of the pubic symphysis and to obtain the position of the lower edge of the pubic symphysis and the position of the lowest point of the fetal head;

[0031] The standard processing module is used to standardize the coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head, so as to obtain the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head.

[0032] The monitoring and analysis module is used to obtain the numerical value and direction of the presenting position of the fetus based on the standardized coordinates of the lower edge of the pubic symphysis, the standardized coordinates of the lowest point of the fetal head, the measurement data of the anterior superior iliac spine, and the measurement data of the midpelvis, thereby obtaining the fetal head descent monitoring data.

[0033] This invention enables monitoring of fetal head descent during childbirth, allowing medical staff to clearly understand the descent status of the fetal head and providing a reference basis for emergency analysis and treatment. Furthermore, this invention eliminates the need for subjective human intervention in analysis and judgment, reducing the influence of subjective factors and improving the accuracy of monitoring and analysis. It can also replace manual digital rectal examination, eliminating the discomfort caused by manual examination for the mother. In addition, by using a magnetic field transmitter, a back sensor, a measurement sensor, and an ultrasound probe, the actual situation of the mother is acquired, allowing analysis based on the mother's own skeletal structure. This avoids the influence of differences between the mother's pelvis and the standard pelvis on fetal head analysis, enabling accurate analysis even when the mother's pelvis differs from the standard pelvis. This expands the applicability, reduces the impact of pelvic differences, and improves the accuracy of fetal head monitoring.

[0034] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0035] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0036] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is a schematic diagram illustrating the steps of a method for monitoring fetal head descent according to the present invention;

[0038] Figure 2 This is a partial flowchart of step one of the fetal head descent monitoring methods described in this invention;

[0039] Figure 3 This is a schematic diagram of a portion of step four in the method for monitoring fetal head descent described in this invention;

[0040] Figure 4 This is a schematic diagram of another part of step four in the method for monitoring fetal head descent described in this invention;

[0041] Figure 5 This is a schematic diagram of a fetal head descent monitoring system according to the present invention. Detailed Implementation

[0042] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0043] Example 1:

[0044] This embodiment provides a method for monitoring fetal head descent, such as... Figure 1 As shown, it includes:

[0045] Step 1: Deploy the magnetic field transmitter to the abdomen of the mother and the back sensor to the sacrum and coccyx.

[0046] Step 2: Using measurement sensors, external and internal measurements are performed on the parturient to obtain measurement data of the anterior superior iliac spine and midpelvis;

[0047] Step 3: Using an ultrasound probe, a longitudinal section is made in the perineum of the pregnant woman to obtain the largest section of the pubic symphysis, and to obtain the position of the lower edge of the pubic symphysis and the lowest point of the fetal head;

[0048] Step 4: Standardize the coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head to obtain the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head.

[0049] Step 5: Based on the standardized coordinates of the lower edge of the pubic symphysis, the standardized coordinates of the lowest point of the fetal head, the measurement data of the anterior superior iliac spine, and the measurement data of the midpelvis, obtain the numerical value and direction of the fetal presenting position to obtain the fetal head descent monitoring data.

[0050] Specifically, after deploying the magnetic field transmitter to the mother's abdomen and the back sensor to the mother's sacrum and coccyx, the positions of the magnetic field transmitter and the back sensor remain unchanged.

[0051] Specifically, the presenting position is vector data, and the position of the fetal part that first enters the pelvic inlet is determined by the numerical value and direction of the presenting position.

[0052] Specifically, the standardized coordinates of the lower edge of the pubic symphysis, the standardized coordinates of the lowest point of the fetal head, the measurement data of the anterior superior iliac spine, and the measurement data of the midpelvis were obtained by collecting data from the mother under the influence of a magnetic field.

[0053] Specifically, the measuring sensors acquire data in real time, and the measurement data of the anterior superior iliac spine and the midpelvis are real-time data.

[0054] The aforementioned technical solution enables monitoring of fetal head descent during childbirth, allowing medical staff to clearly understand the descent status and providing a reference basis for emergency analysis and treatment. Furthermore, this solution eliminates the need for subjective human intervention in analysis and judgment, reducing the influence of subjective factors and improving the accuracy of monitoring and analysis. It can also replace manual digital rectal examination, eliminating the discomfort caused by manual examination for the mother. In addition, the use of a magnetic field transmitter, back sensor, measurement sensor, and ultrasound probe allows for the acquisition of the mother's actual condition, enabling analysis based on the mother's skeletal structure. This avoids the impact of differences between the mother's pelvis and the standard pelvis on fetal head analysis, ensuring accurate analysis even when differences exist. This expands applicability, reduces the impact of pelvic differences, and improves the accuracy of fetal head monitoring.

[0055] Example 2:

[0056] Based on Example 1, the deployment location of the magnetic field transmitter was analyzed and adjusted when it was placed on the abdomen of the mother. Figure 2 As shown, the process includes: placing a magnetic field transmitter at any position on the mother's abdomen, analyzing whether the mother's pelvis is within the effective range of the magnetic field; if the mother's pelvis is not within the effective range of the magnetic field, adjusting the position of the magnetic field transmitter according to the first adjustment plan until the mother's pelvis appears within the effective range of the magnetic field; if the mother's pelvis is within the effective range of the magnetic field, analyzing the portion of the mother's pelvis within the effective range of the magnetic field to determine whether the mother's pelvis is completely within the effective range of the magnetic field; if the mother's pelvis is not completely within the effective range of the magnetic field, adjusting the position of the magnetic field transmitter according to the second adjustment plan until the mother's pelvis is completely within the effective range of the magnetic field.

[0057] Specifically, if the mother's pelvis is within the effective range of the magnetic field, it means that the entire pelvis is within the effective range of the magnetic field, and the location of the magnetic field transmitter is the final deployment location.

[0058] In particular, the adjustment interval of the first adjustment plan is larger than that of the second adjustment plan.

[0059] Specifically, when adjusting the position of the magnetic field transmitter according to the first adjustment scheme, the position of the magnetic field transmitter is moved and adjusted regularly according to a preset adjustment interval.

[0060] Specifically, when adjusting the position of the magnetic field transmitter according to the second adjustment plan, the position of the magnetic field transmitter is slightly adjusted according to the presence of the mother's pelvis within the effective range of the magnetic field. For example, if the left side is missing, move it to the left; if the right side is missing, move it to the right; if the upper side is missing, move it upward; if the lower side is missing, move it downward.

[0061] Specifically, when adjusting the position of the magnetic field transmitter according to the first adjustment scheme or the second adjustment scheme, an automated control device is used to adjust the transmitter. This automated control device includes an image recognition module, an analysis and judgment module, a scheme storage module, and a control and adjustment module. The image recognition module is used to recognize the image of the mother's abdomen; the analysis and judgment module is used to analyze whether the mother's pelvis is within the effective range of the magnetic field; the scheme storage module is used to store the first and second adjustment schemes; and the control and adjustment module is used to retrieve the adjustment scheme from the scheme storage module and control and adjust the magnetic field transmitter according to the scheme. Specifically, the image recognition unit recognizes the image of the mother's abdomen, determines the adjustment range of the magnetic field transmitter, and obtains the current position of the magnetic field transmitter on the mother's abdomen. Then, the analysis and judgment module analyzes whether the mother's pelvis is within the effective range of the magnetic field. Within the effective range of the magnetic field, an analysis and judgment result is obtained. When the analysis and judgment result indicates that the mother's pelvis is not within the effective range of the magnetic field, the control adjustment module retrieves the first adjustment scheme from the scheme storage module and adjusts the position of the entire magnetic field transmitter according to the first adjustment scheme and the adjustment range of the magnetic field transmitter. When the analysis and judgment result indicates that the mother's pelvis is within the effective range of the magnetic field, but the mother's pelvis is not completely within the effective range of the magnetic field, the control adjustment module retrieves the second adjustment scheme from the scheme storage module and adjusts the position of the entire magnetic field transmitter according to the second adjustment scheme and the adjustment range of the magnetic field transmitter. When the analysis and judgment result indicates that the mother's pelvis is within the effective range of the magnetic field, and the mother's pelvis is completely within the effective range of the magnetic field, the control adjustment module pauses retrieving the second adjustment scheme and stops adjusting the position of the magnetic field transmitter.

[0062] The aforementioned technical solution, by adjusting the position of the magnetic field transmitter according to the first adjustment scheme, can efficiently determine the transmitter's location even when the mother's pelvis is outside the effective range of the magnetic field. Furthermore, the regular movement and adjustment at preset intervals avoids wasting time analyzing repeated positions or missing positions during back-and-forth adjustments, improving the efficiency of magnetic field transmitter deployment. In addition, adjusting the transmitter's position according to the second adjustment scheme ensures that the mother's pelvis is fully within the effective range of the magnetic field, preventing data loss due to incomplete pelvic alignment that could affect fetal head descent monitoring and analysis, thus improving the accuracy of fetal head descent monitoring. Moreover, the automated adjustment of the magnetic field transmitter through an automated control device is not only highly efficient and accurate but also reduces the workload of medical staff. When the control and adjustment module adjusts the magnetic field transmitter according to the adjustment scheme, it combines the adjustment range of the magnetic field transmitter with the image recognition module to adjust its position, preventing the magnetic field transmitter from detaching from the mother's abdomen and thus preventing the inability to automatically adjust it.

[0063] Example 3:

[0064] Based on Example 1, when using measurement sensors to perform external and internal measurements on the parturient, the position of the magnetic field transmitter remains unchanged. The measurement data of the anterior superior iliac spine includes: measurement data of the left anterior superior iliac spine and measurement data of the right anterior superior iliac spine. During external measurement, the measurement sensors are used to locate the left and right anterior superior iliac spines of the parturient to obtain the measurement data of the left and right anterior superior iliac spines. The measurement data of the midpelvis includes: measurement data of the left ischial spine, measurement data of the right ischial spine, and measurement data of the midpoint between the 4th and 5th sacral vertebrae. During internal measurement, the measurement sensors are used to locate the left and right ischial spines and the midpoint between the 4th and 5th sacral vertebrae of the parturient to obtain the measurement data of the left ischial spine, measurement data of the right ischial spine, and measurement data of the midpoint between the 4th and 5th sacral vertebrae.

[0065] Specifically, when measuring the external measurements of the mothers using measuring sensors, the anterior superior iliac spine measurement data is extracted from the external measurement data.

[0066] Specifically, when measuring sensors are used to perform internal measurements on individual mothers, mid-pelvic measurement data is extracted from the internal measurement data.

[0067] The above technical solution maintains the position of the magnetic field transmitter, ensuring that the measurement data of the anterior superior iliac spine and mid-pelvis obtained by the measurement sensor have a unified standard, facilitating comparison and analysis. Furthermore, extracting the anterior superior iliac spine measurement data from external measurements and the mid-pelvis measurement data from internal measurements allows for the extraction and use of target data to determine the actual skeletal condition of the mother. This enables analysis in conjunction with the mother's own pelvic condition, eliminating the difference between the mother's pelvis and the standard pelvis, improving the accuracy of fetal head descent monitoring, and reducing the redundancy of other data, simplifying the complexities of fetal head descent monitoring and making it more convenient.

[0068] Example 4:

[0069] Based on Example 3, when locating the left ischial spine, right ischial spine, and midpoint of S4 and S5 vertebrae of the parturient using measurement sensors, the data is marked three times to obtain initial measurement data for the left ischial spine, the right ischial spine, and the midpoint of S4 and S5 vertebrae. The positioning mode corresponding to the initial measurement data of the left ischial spine is used as the target reference standard. The initial measurement data of the left ischial spine is then used as the measurement data of the left ischial spine. Then, based on the location of the back sensor deployed to the sacrococcygeal region of the parturient, the initial measurement data of the right ischial spine and the initial measurement data of the midpoint of S4 and S5 vertebrae are converted to the positioning mode corresponding to the target reference standard to obtain the measurement data of the right ischial spine and the measurement data of the midpoint of S4 and S5 vertebrae.

[0070] In particular, when marking is performed three times, the positioning pattern corresponding to each marking is not necessarily the same; it can be the same or different.

[0071] In particular, when selecting a target reference standard, the positioning pattern corresponding to the initial measurement data of the right ischial spine or the initial measurement data of the midpoint between the 4th and 5th sacral vertebrae can also be used as the target reference standard.

[0072] The aforementioned technical solution standardizes the data by selecting a target reference standard, ensuring that the data has the same dimensions and can be directly analyzed, thus facilitating subsequent calculations and analyses. Furthermore, marking the data three times facilitates the location of the midpoints of the left and right ischial spines and the S4 and S5 vertebrae, enabling rapid acquisition of these midpoints, reducing the difficulty of localization, improving the measurement efficiency of these midpoints, and minimizing the impact of data lag on fetal head descent monitoring and analysis, thereby ensuring the accuracy of fetal head descent monitoring.

[0073] Example 5:

[0074] Based on Example 4, when the left and right anterior superior iliac spines of the parturient are located by measuring sensors to obtain measurement data of the left and right anterior superior iliac spines, the measurement data of the left and right anterior superior iliac spines are also standardized. According to the location of the back sensor deployed to the sacrococcygeal region of the parturient, the measurement data of the left and right anterior superior iliac spines are converted into the positioning mode corresponding to the target reference standard to obtain standardized measurement data of the left and right anterior superior iliac spines.

[0075] The aforementioned technical solution standardizes the measurement data of the left and right anterior superior iliac spines, ensuring that these data share the same target reference standard. This guarantees that the standardized measurement data of the left and right anterior superior iliac spines have the same dimensions as the measurement data of the left and right ischial spines, as well as the measurement data of the midpoint between the fourth and fifth sacral vertebrae. Consequently, analysis can be directly performed based on the standardized measurement data of the left and right anterior superior iliac spines, the left and right ischial spines, and the measurement data of the midpoint between the fourth and fifth sacral vertebrae, avoiding erroneous results caused by inconsistent dimensions and ensuring the accuracy of fetal head descent monitoring.

[0076] Example 6:

[0077] Based on Example 5, when standardizing the coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head, the lower edge of the pubic symphysis and the lowest point of the fetal head are converted to the positioning mode corresponding to the target reference standard according to the location of the back sensor deployed to the sacrococcygeal region of the parturient, so as to obtain the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head.

[0078] Specifically, the location of the lower edge of the pubic symphysis and the location of the lowest point of the fetal head are the coordinate information of the lower edge of the pubic symphysis and the coordinate information of the lowest point of the fetal head.

[0079] The above technical solution converts the position of the lower edge of the pubic symphysis and the position of the lowest point of the fetal head into the positioning mode corresponding to the target reference standard. This makes the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head data in the positioning mode corresponding to the target reference standard. This facilitates subsequent analysis of the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head, and enables direct calculation of the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head.

[0080] Example 7:

[0081] Based on Example 1, the value of the presenting part of the fetus is obtained as follows: Figure 3 As shown, it includes:

[0082] S4101. Based on the standardized coordinates of the lower edge of the pubic symphysis and the measurement data of the anterior superior iliac spine, the coordinates of the ischial spine are determined. Based on the coordinates of the ischial spine, the midpoint of the interspinous diameter is determined. At the same time, based on the measurement data of the midpelvis, the midpoint of the anteroposterior diameter of the midpelvis is determined. The midpoint between the midpoint of the interspinous diameter and the midpoint of the anteroposterior diameter of the pelvis is analyzed to determine the center point of the midpelvic plane and obtain the coordinates of the center point of the midpelvic plane.

[0083] S4102. Based on the standardized coordinates of the center point of the midpelvic plane and the lowest point of the fetal head, perform distance analysis to obtain the value of the presenting position.

[0084] The above technical solution obtains the presenting position value based on the standardized coordinates of the center point of the midpelvic plane and the lowest point of the fetal head. This clarifies the changes in the relationship between the fetal head and the pelvis, reflects the changes in data information during the descent of the fetal head, and provides data support for medical staff to analyze the condition of the mother. This allows medical staff to judge the progress and condition of the delivery based on the presenting position value, and thus provide better assistance to the mother during delivery.

[0085] Example 8:

[0086] like Figure 4 As shown, in one embodiment of the present invention, the direction of the presenting part of the fetus is obtained by:

[0087] S4201. Obtain the coordinates of the center point of the midpelvic plane, including: analyzing and determining the coordinates of the ischial spines based on the standardized coordinates of the lower edge of the pubic symphysis and the measurement data of the anterior superior iliac spine; determining the midpoint of the interspinous diameter based on the coordinates of the ischial spines; determining the midpoint of the anteroposterior diameter of the midpelvis based on the measurement data of the midpelvis; analyzing the midpoint between the midpoint of the interspinous diameter and the midpoint of the anteroposterior diameter of the pelvis; determining the center point of the midpelvic plane; and obtaining the coordinates of the center point of the midpelvic plane.

[0088] S4202. Obtain the straight line where the left and right anterior superior iliac spines are located. Based on the measurement data of the anterior superior iliac spine, fit the measurement data of the left and right anterior superior iliac spines onto a straight line to determine the straight line where the left and right anterior superior iliac spines are located.

[0089] S4203. Calculate the distance from the lowest point of the fetal head to the straight line containing the left and right anterior superior iliac spines based on the standardized coordinates of the lowest point of the fetal head and the straight line containing the left and right anterior superior iliac spines to obtain the first judgment distance.

[0090] S4204. Calculate the distance from the center point of the midpelvic plane to the straight line containing the left and right anterior superior iliac spines based on the coordinates of the center point of the midpelvic plane and the straight line containing the left and right anterior superior iliac spines to obtain the second judgment distance.

[0091] S4205. Analyze the relationship between the first judgment distance and the second judgment distance. When the first judgment distance is greater than the second judgment distance, the fetal head is below the midpelvic plane and the presenting position is positive. When the first judgment distance is less than the second judgment distance, the fetal head is above the midpelvic plane and the presenting position is negative.

[0092] Specifically, the method for obtaining the coordinates of the center point of the midpelvic plane is the same as that for obtaining the coordinates of the center point of the midpelvic plane during the process of obtaining the value of the presenting position of the fetus. The coordinates of the center point of the midpelvic plane obtained during the process of obtaining the value of the presenting position of the fetus can be directly used in the direction of the presenting position during the process of obtaining the value of the presenting position of the fetus.

[0093] The above technical solution determines the positive or negative direction of the presenting part by the relationship between the first judgment distance and the second judgment distance, thus clarifying the relative direction between the fetus and the pelvic inlet. This allows for more accurate monitoring of the descent of the fetal head and the movement and changes of the fetal head during childbirth, providing convenience for medical staff and enabling them to analyze and judge the mother and baby based on the movement and changes of the fetal head during childbirth.

[0094] Example 9:

[0095] Based on Example 1, during the delivery process, an ultrasound probe is used at a preset frequency to acquire the position of the lower edge of the pubic symphysis and the lowest point of the fetal head, and corresponding fetal head descent monitoring data is acquired based on the position of the lower edge of the pubic symphysis and the lowest point of the fetal head. After obtaining the fetal head descent monitoring data, a fitting analysis is performed on the current fetal head descent monitoring data and historical fetal head descent monitoring data to obtain changes in the presenting position. Based on the changes in the presenting position and the time of acquiring the position of the lower edge of the pubic symphysis and the lowest point of the fetal head, the delivery of the mother is predicted, and medical reminders are given based on the delivery prediction.

[0096] The preset frequency is dynamically changed. In the early stage of fetal head descent monitoring, the position of the lower edge of the pubic symphysis and the lowest point of the fetal head are obtained by ultrasound probe according to the preset frequency. After obtaining multiple historical fetal head descent monitoring data, the progress of the mother's delivery is determined based on the historical fetal head descent monitoring data, and the frequency is adjusted in stages according to the progress of the mother's delivery.

[0097] Specifically, after obtaining the fetal head descent monitoring data, when performing a fitting analysis by combining the current fetal head descent monitoring data with historical fetal head descent monitoring data, the fetal head descent monitoring data is integrated into a line graph, with time as the horizontal axis and fetal presenting position as the vertical axis.

[0098] Specifically, when predicting maternal delivery based on changes in fetal presenting position combined with the time of obtaining the lower edge of the pubic symphysis and the lowest point of the fetal head, a phased analysis is performed according to the time gradient to clarify the changes and gradients of fetal presenting position in historical fetal head descent monitoring data. Furthermore, trend prediction is performed by combining the changes and gradients of fetal presenting position in multiple adjacent fetal head descent monitoring data to obtain predicted data for fetal presenting position.

[0099] Specifically, when providing medical reminders based on the prediction of the mother's labor, the predicted data of the presenting position is analyzed to determine whether the fetal head position has reached the specified position. If the predicted data of the presenting position indicates that the fetal head position has reached the specified position, medical reminders are provided to the medical staff.

[0100] Specifically, in the initial stage of fetal head descent monitoring, the position of the lower edge of the pubic symphysis and the lowest point of the fetal head are obtained by ultrasound probe at a preset frequency. Here, the preset frequency is relatively low.

[0101] Specifically, as the fetal head descends, it is determined whether the mother has entered the middle or late stages of labor, and the preset frequency is increased in the middle and late stages. The preset frequency used in the middle stage is higher than that used in the early stage, but lower than that used in the late stage.

[0102] The aforementioned technical solution, through fitting and analysis of current and historical fetal head descent monitoring data, enables prediction based on fetal head descent monitoring. This allows for understanding the trend of fetal head changes during labor, and provides medical and nursing reminders based on the predicted fetal position. Consequently, medical staff are more vigilant when the predicted fetal head position indicates that the presenting part has reached a designated position, thus enabling them to promptly detect any emergencies during labor and improve the mother's safety.

[0103] Furthermore, by using a preset, dynamically changing frequency, the fetal head descent monitoring data is collected at different frequencies throughout the labor process. This avoids the impact of repeated fetal head descent monitoring on the mother's condition and also prevents complications such as infection caused by repeated monitoring. The frequency can be adjusted in stages according to the progress of labor, allowing for relatively low-frequency monitoring in the early stages and gradually increasing the frequency in the middle and later stages. This reduces the number of fetal head descent monitoring sessions without compromising the analysis of the labor process, improving the mother's experience while ensuring accurate analysis of the fetal head descent process and guaranteeing the accuracy of fetal head descent monitoring.

[0104] Example 10:

[0105] Based on Examples 1-9, this embodiment proposes a fetal head descent monitoring system to implement the fetal head descent monitoring methods corresponding to Examples 1-9. The fetal head descent monitoring system includes: a monitoring deployment module, a first acquisition module, a second acquisition module, a standard processing module, and a monitoring analysis module.

[0106] The monitoring deployment module is used to deploy the magnetic field transmitter to the abdomen of the mother and the back sensor to the sacrum and coccyx of the mother.

[0107] The first acquisition module is used to perform external and internal measurements on the parturient using measurement sensors to obtain measurement data of the anterior superior iliac spine and mid-pelvis.

[0108] The second acquisition module is used to make a longitudinal section in the perineum of the pregnant woman through an ultrasound probe to obtain the maximum cross-section of the pubic symphysis and to obtain the position of the lower edge of the pubic symphysis and the position of the lowest point of the fetal head;

[0109] The standard processing module is used to standardize the coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head to obtain the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head.

[0110] The monitoring and analysis module is used to obtain the numerical value and direction of the presenting position of the fetus based on the standardized coordinates of the lower edge of the pubic symphysis, the standardized coordinates of the lowest point of the fetal head, the measurement data of the anterior superior iliac spine, and the measurement data of the midpelvis, thereby obtaining the fetal head descent monitoring data.

[0111] The aforementioned technical solution enables monitoring of fetal head descent during childbirth, allowing medical staff to clearly understand the descent status and providing a reference basis for emergency analysis and treatment. Furthermore, the monitoring and analysis module eliminates the need for subjective human intervention, reducing the impact of subjective factors and improving accuracy. It also replaces manual digital rectal examination, eliminating the discomfort caused by manual examination. In addition, the first and second acquisition modules utilize a magnetic field transmitter, a back sensor, a measurement sensor, and an ultrasound probe to acquire the mother's actual condition. This allows the monitoring and analysis module to analyze based on the mother's skeletal structure, avoiding the impact of differences between the mother's pelvis and the standard pelvis on fetal head analysis. This ensures accurate analysis even when differences exist between the mother's and the standard pelvis, expanding applicability, reducing the impact of pelvic differences, and improving the accuracy of fetal head monitoring.

[0112] Those skilled in the art should understand that the terms "first" and "second" in this invention merely refer to different application stages.

[0113] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0114] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for monitoring fetal head descent, characterized in that, include: The magnetic field transmitter was placed on the abdomen of the mother, and the back sensor was placed on the sacrum and coccyx of the mother. Measurement sensors were used to perform external and internal measurements on the parturient to obtain anterior superior iliac spine and midpelvic measurement data. During both external and internal measurements, the position of the magnetic field transmitter remained constant. The anterior superior iliac spine measurement data included left and right anterior superior iliac spine measurements. During external measurements, the measurement sensors were used to locate the left and right anterior superior iliac spines to obtain their respective measurement data. The midpelvic measurement data included left and right ischial spine measurements and the midpoint between the S4 and S5 vertebrae. During internal measurements, the measurement sensors were used to locate the left and right ischial spines and the midpoint between the S4 and S5 vertebrae to obtain their respective measurement data. The perineum of the pregnant woman is longitudinally sectioned using an ultrasound probe to obtain the largest section of the pubic symphysis and to obtain the position of the lower edge of the pubic symphysis and the lowest point of the fetal head. The coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head were standardized to obtain the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head. Based on the standardized coordinates of the lower edge of the pubic symphysis, the standardized coordinates of the lowest point of the fetal head, measurement data of the anterior superior iliac spine, and measurement data of the midpelvis, the numerical values ​​and orientation of the fetal presenting position are obtained to obtain fetal head descent monitoring data; among which, the numerical values ​​of the fetal presenting position include: The coordinates of the ischial spines are determined by analyzing the standardized coordinates of the lower edge of the pubic symphysis and the measurement data of the anterior superior iliac spine. The midpoint of the interspinous diameter is determined based on the coordinates of the ischial spines. At the same time, the midpoint of the anteroposterior diameter of the midpelvis is determined based on the measurement data of the midpelvis. The midpoint between the midpoint of the interspinous diameter and the midpoint of the anteroposterior diameter of the pelvis is analyzed to determine the center point of the midpelvic plane and obtain the coordinates of the center point of the midpelvic plane. Distance analysis was performed based on the coordinates of the center point of the midpelvic plane and the standardized coordinates of the lowest point of the fetal head to obtain the value of the presenting position; When determining the orientation of the presenting part of the fetus, the following should be included: Obtaining the coordinates of the center point of the midpelvic plane includes: analyzing and determining the coordinates of the ischial spines based on the standardized coordinates of the lower edge of the pubic symphysis and the measurement data of the anterior superior iliac spine; determining the midpoint of the interspinous diameter based on the coordinates of the ischial spines; determining the midpoint of the anteroposterior diameter of the midpelvis based on the measurement data of the midpelvis; analyzing the midpoint between the midpoint of the interspinous diameter and the midpoint of the anteroposterior diameter of the pelvis; determining the center point of the midpelvic plane; and obtaining the coordinates of the center point of the midpelvic plane. Obtain the straight line where the left and right anterior superior iliac spines are located; based on the measurement data of the left and right anterior superior iliac spines, fit the measurement data of the left and right anterior superior iliac spines onto a straight line to determine the straight line where the left and right anterior superior iliac spines are located. The distance from the lowest point of the fetal head to the line containing the left and right anterior superior iliac spines is calculated based on the standardized coordinates of the lowest point of the fetal head and the line containing the left and right anterior superior iliac spines, thus obtaining the first judgment distance. The distance from the center point of the midpelvic plane to the straight line containing the left and right anterior superior iliac spines is calculated based on the coordinates of the center point of the midpelvic plane and the straight line containing the left and right anterior superior iliac spines, thus obtaining the second judgment distance. Analyzing the relationship between the first and second judgment distances, when the first judgment distance is greater than the second judgment distance, the fetal head is below the midpelvic plane, and the presenting position is positive. When the first judgment distance is less than the second judgment distance, the fetal head is above the midpelvic plane, and the presenting position is negative.

2. The method according to claim 1, characterized in that, When deploying the magnetic field transmitter to the mother's abdomen, the deployment position is analyzed and adjusted, including: placing the magnetic field transmitter at any position on the mother's abdomen and analyzing whether the mother's pelvis is within the effective range of the magnetic field. If the mother's pelvis is not within the effective range of the magnetic field, the position of the magnetic field transmitter is adjusted according to the first adjustment plan until the mother's pelvis appears within the effective range of the magnetic field. When the mother's pelvis is within the effective range of the magnetic field, the portion of the mother's pelvis within the effective range of the magnetic field is analyzed to determine whether the mother's pelvis is completely within the effective range of the magnetic field. If the mother's pelvis is not completely within the effective range of the magnetic field, the position of the magnetic field transmitter is adjusted according to the second adjustment plan until the mother's pelvis is completely within the effective range of the magnetic field.

3. The method according to claim 1, characterized in that, When locating the left and right ischial spines and the midpoint between the 4th and 5th sacral vertebrae of the mother using measurement sensors, the data was marked three times to obtain initial measurement data for the left ischial spine, the right ischial spine, and the midpoint between the 4th and 5th sacral vertebrae. The positioning mode corresponding to the initial measurement data of the left ischial spine was used as the target reference standard. The initial measurement data of the left ischial spine is then used as the measurement data of the left ischial spine. Then, based on the location of the back sensor deployed to the sacrum and coccyx of the mother, the initial measurement data of the right ischial spine and the midpoint between the 4th and 5th sacral vertebrae were converted to the positioning mode corresponding to the target reference standard to obtain the measurement data of the right ischial spine and the midpoint between the 4th and 5th sacral vertebrae.

4. The method according to claim 3, characterized in that, The left and right anterior superior iliac spines of the mother are located by measuring sensors. After obtaining the measurement data of the left and right anterior superior iliac spines, the back sensors are deployed to the sacrococcygeal region of the mother for positioning. The measurement data of the left and right anterior superior iliac spines are converted into the positioning mode corresponding to the target reference standard to obtain the standardized measurement data of the left and right anterior superior iliac spines.

5. The method according to claim 4, characterized in that, When standardizing the coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head, the lower edge of the pubic symphysis and the lowest point of the fetal head are converted to the positioning mode corresponding to the target reference standard based on the location of the back sensor deployed to the sacrococcygeal region of the parturient, thus obtaining the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head.

6. The method according to claim 1, characterized in that, During the delivery process, an ultrasound probe is used at a preset frequency to obtain the position of the lower edge of the pubic symphysis and the lowest point of the fetal head. Based on the position of the lower edge of the pubic symphysis and the lowest point of the fetal head, corresponding fetal head descent monitoring data is obtained. After obtaining the fetal head descent monitoring data, the current fetal head descent monitoring data is combined with historical fetal head descent monitoring data for fitting analysis to obtain changes in the presenting position. Based on the changes in the presenting position and the time of obtaining the lower edge of the pubic symphysis and the lowest point of the fetal head, the delivery of the mother is predicted, and medical staff are reminded based on the delivery prediction. The preset frequency is dynamically changed. In the early stage of fetal head descent monitoring, the position of the lower edge of the pubic symphysis and the lowest point of the fetal head are obtained by ultrasound probe according to the preset frequency. After obtaining multiple historical fetal head descent monitoring data, the progress of the mother's delivery is determined based on the historical fetal head descent monitoring data, and the frequency is adjusted in stages according to the progress of the mother's delivery.

7. A fetal head descent monitoring system, based on the fetal head descent monitoring method according to any one of claims 1-6, characterized in that, The system includes: a monitoring deployment module, a first acquisition module, a second acquisition module, a standard processing module, and a monitoring analysis module; The monitoring deployment module is used to deploy the magnetic field transmitter to the abdomen of the mother and the back sensor to the sacrum and coccyx of the mother. The first acquisition module is used to perform external and internal measurements on the parturient using measurement sensors to obtain measurement data of the anterior superior iliac spine and mid-pelvis. The second acquisition module is used to make a longitudinal section in the perineum of the pregnant woman through an ultrasound probe to obtain the maximum cross-section of the pubic symphysis and to obtain the position of the lower edge of the pubic symphysis and the position of the lowest point of the fetal head; The standard processing module is used to standardize the coordinates of the lower edge of the pubic symphysis and the lowest point of the fetal head to obtain the standardized coordinates of the lower edge of the pubic symphysis and the standardized coordinates of the lowest point of the fetal head. The monitoring and analysis module is used to obtain the numerical value and direction of the presenting position of the fetus based on the standardized coordinates of the lower edge of the pubic symphysis, the standardized coordinates of the lowest point of the fetal head, the measurement data of the anterior superior iliac spine, and the measurement data of the midpelvis, thereby obtaining the fetal head descent monitoring data.

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