124 results about "Fetal movement" patented technology

The invention provides a system and a method for real-time monitoring and communication of a housebound pregnant woman. A sensing device is used for sensing the uterine contractive pressure of the pregnant woman and physiological states, such as fetal heart rate, fetal movement, and the like of a fetus and generates a sensing signal; a computer-aided monitoring system carries out analytical processing and generates an analytical signal; a long-range electronic device downloads and displays the analytical signal from the computer-aided monitoring system, and the physiological states of the pregnant woman and the fetus can be judged to be abnormal or not through the analytical signal displayed by the electronic device, thus the physiological states of the pregnant woman can be monitored and known in a long range and real time, and the troubles of the pregnant woman staying in hospital for a long time for miscarriage prevention and other demands or going to the hospital back and forth frequently during pregnancy are reduced.

The invention discloses an algorithm for automatically recognizing a fetal heart rate baseline. The algorithm comprises the following steps: S1, collecting fetal heart rate signals; S2, performing curve optimization to the collected fetal heart rate signals; S3, performing feature extraction to the fetal heart rate signal curve after optimization, and clustering the extracted feature points into two feature parts through a clustering analysis algorithm; S4 distinguishing the two feature parts into a baseline part and a non-baseline part according to the distinguishing conditions; and S5, performing smooth filtering to the recognized baseline part to obtain the final estimated fetal heart rate baseline. The algorithm for automatically recognizing the fetal heart rate baseline can determine the fetal heart rate baseline more accurately by combining the fetal movement information particularly under the condition of close results of clustering, provide more intelligent and more reliable fetal heart monitoring results for clinic, and can be widely applied to the fields of biomedical signal processing, artificial intelligence and electronic fetal monitoring.

The present invention provides a fetal movement monitoring system and a fetal movement information collecting device which are simply usable at home to collect and analyze correctly detail information about fetal movements over a long time. The fetal movement monitoring system includes a fetal movement information collecting device 21 and an analyzing device 40, wherein the fetal movement information collecting device 21 includes a fetal movement sensor 22 for detecting the movement of a fetus in the uterus of the mother's body, a timer 25 for outputting time information, a memory 26, and a storage control means 24 which receives the output signal from the fetal movement sensor 22 and stores, in the memory 26, waveform information of the output signal obtained for a period from the time when the output signal reaches a level to exceed a predetermined threshold value until a predetermined time elapses along with time information at the time; and the analyzing device 40 which bases on the waveform information and the time information stored in the memory 26 to reproduce signal waveform, to determine fetal movement type, and to produce fetal movement occurrence pattern, and bases on the occurrence pattern to determine whether a fetus is smoothly growing or not, and displays the determination result on a display 42.

The invention concerns fetal movement monitoring apparatus having a deflection sensor device arranged to be applied to a mother's abdomen for detection of abdominal deflections indicative of fetal movements and to output a signal comprising one or more record of said abdominal deflections. A processor under the control of machine readable instructions is arranged to process the signal output from the deflection sensor device and to output a log of fetal movement over time. The processor is arranged to receive one or more further input indicative of maternal or fetal movement or wellbeing, for example from a second sensor device by which a user can input a record of perceived fetal movements. The processor may compare the output of the first sensor device and the user's input via the second sensor device and output a log of fetal movements over time based upon said comparison.

A apparatus for automatically detecting a pregnancy status of a patient include a patch for adhering to human skin, a uterine contraction sensor, such as electromyography (EMG), coupled to the patch with at least two electrodes, and an inertial sensor for sensing fetal movement, or fetal heart rate (FHR) sensor, such as fetal EKG or a Doppler ultrasound. An electronic circuit is coupled to the patch, the EMG sensor and the inertial sensor, and/or FHR sensor. The circuit provides an output based on a uterine contraction signal from the EMG sensor (or the Doppler ultrasound) correlated in time to a fetal movement, and/or fetal heart rate. The apparatus may include a thermometer to aid in automatically providing an indication of a pregnancy complication or ovulation status of the patient, based on the output.

The invention relates to the technical field of medical instruments, and provides a fetal movement recognition method, fetal movement recognition equipment and a fetal monitor. The fetal movement recognition method includes: acquiring a fetal movement curve, setting a fetal movement threshold according to the fetal movement curve, and identifying whether a fetus moves or not according to amplitude values of points on the fetal movement curve and the fetal movement threshold. Compared with the prior art, the fetal movement recognition method is capable of completing fetal movement recognition by the aid of a three-step method and by comparing the amplitude values with the fetal movement threshold, and has the advantages of simplicity, less operation quantity, high accuracy and the like.

A handheld device for fetal health monitoring is provided. The device comprises at least one sensor configured to detect fetal movement, and an ultrasound transducer unit configured to record a heartbeat sound of the fetus. The device further comprises a storage unit connectable to the at least one sensor and the ultrasound transducer unit and configured to store the detected fetal movement along with a timestamp and the heartbeat sound of the fetus in the form of digital information.

The embodiment of the invention discloses a fetal monitoring method and a fetal monitoring device, and relates to the technology of electronic medical appliances. The device is convenient for monitoring safety of fetal heart and fetal movement of a fetus. The fetal heart rate monitoring method comprises the following steps: sensing pressure change information caused after a longitudinal wave is transmitted to the sensitive surface of a micro-pressure sensor, wherein the longitudinal wave is generated by the surrounding air pushed by vibration energy of micro-vibration on the maternal abdomen skin surface after a fetal heart sound generated by the fetus is transmitted through amniotic fluid, uterine wall and the maternal abdomen skin; performing amplification, filtration, digital-analog conversion and signal peak value extraction treatments on the pressure change information to obtain the fetal heart rate information; and transmitting the acquired fetal heart rate information to preset electronic equipment. The fetal movement monitoring method comprises the steps of monitoring the vibration of maternal skin by an acceleration sensor, and discriminating fetal movement by operation. The fetal monitoring method and fetal monitoring device are suitable for mobile safety monitoring the fetus.

The invention discloses a maternal fetus monitoring device and a maternal fetus monitoring method. A fetal position and fetal movement monitoring device comprises a group of patch electrodes, a preceding-stage signal processor, a post-stage signal processor and a fetal position judgment processor, wherein the patch electrodes are used for being attached to a maternal abdomen to provide the measuration of at least three channels; the preceding-stage signal processor receives a plurality of induction signals of the group of patch electrodes, inhibits noise and amplifies the signals to output a group of characteristic induction signals; the post-stage signal processor receives the group of characteristic induction signals outputted by the preceding-stage signal processor so as to separate maternal electrocardio-complex waves and fetal electrocardio-complex waves which correspond to the channels; and the fetal position judgment processor analyzes and processes the fetal electrocardio-complex waves to obtain a group of characteristic waveforms of each fetal electrocardio-complex wave or calculates a fetal cardiac axis vector of a front coordinate relative to the parent directly according to the fetal electrocardio-complex waves.

The invention relates to a method for improving fetal heart Doppler signal acquisition quality during fetal movement. The method comprises the following steps: in set time of a fetal heart monitoring process, performing calculation or processing on envelopes of acquired fetal movement Doppler signals, so as to obtain fetal movement characteristic values which represent the fetal movement condition; comparing the obtained fetal movement characteristic values with the size of preset fetal movement thresholds; if the fetal movement characteristic values are greater than or equal to the fetal movement thresholds, determining that a fetus is in a fetal movement period, and increasing the order of a low-frequency suppression filter in a fetal heart Doppler audio-frequency filter circuit; otherwise, determining that the fetus is in a non-fetal movement period, and reducing the order of the filter. The invention also relates to a device for realizing the method. The method and the device for improving the fetal heart Doppler signal acquisition quality during fetal movement have the following beneficial effects of eliminating the interference of the fetal movement signals on fetal heart Doppler signals to a certain extent and being relatively easy in subsequent processing.

The invention discloses a fetal heart and fetal movement monitoring belt and a monitoring device and system. The fetal heart and fetal movement monitoring belt comprises a fetal heart and fetal movement monitoring component, a packaging component and a fixing component; the fetal heart and fetal movement monitoring component comprises one or more fetal heart and fetal movement monitoring sensors which are used for converting vibration conducted by heartbeat of a fetus on the fetal heart and fetal movement monitoring sensors into fetal heart electric signals and outputting the signals and/or converting vibration conducted by movement of the fetus in a utero on the fetal heart and fetal movement monitoring sensors into fetal movement electric signals and outputting the signals; the packaging component is used for sealing and wrapping the fetal heart and fetal movement monitoring component; the fixing component is used for wrapping the fetal heart and fetal movement monitoring component into the abdomen of a pregnant woman. According to the fetal heart and fetal movement monitoring belt, the heart and fetal movement monitoring sensors with high sensitivity are adopted as the fetal heart and fetal movement monitoring component, monitoring on the fetal heart signals and monitoring on the fetal movement signals are achieved at the same time, the false alarm rate is low, no toxin exists, environmental friendliness is achieved, safety and reliability are achieved, the structure and the manufacturing process are simple, the cost is low, and the fetal heart and fetal movement monitoring belt is suitable for large-scale industrial production.

The invention relates to the technical field of maternal and infant monitoring, in particular to a fetal movement and uterine contraction intelligent monitoring system and method. The fetal heart rate, fetal movement and uterine contraction intelligent monitoring system comprises an adhesion layer, a flexible circuit board and a protection layer which are stacked sequentially; the adhesion layer is provided with multiple suckers used for attaching to a belly and a uterine fundus of a pregnant woman, the interior of each sucker is provided with at least one flexible micro pressure sensor, when the sucker is attached to the belly and the uterine fundus of the pregnant woman, the flexible micro pressure sensor is attached tightly to skin of the pregnant woman; pressure to the skin due to cardiac pulsation of the fetus and fetal movement is collected by the flexible micro pressure sensor attached to the belly of the pregnant woman, the pressure to the skin due to the uterine contraction is collected by the flexible micro pressure sensor attached to the uterine fundus of the pregnant woman; the flexible circuit board is used for processing and analyzing a pressure signal collected by the flexible micro pressure sensor, and displaying through display equipment. The intelligent monitoring system can simultaneously monitor the fetal heart rate, the fetal movement and the uterine contraction, the measuring precision is high, and the pregnant woman can be self-monitored at home.

The invention discloses a digital pulsed ultrasound transmitting device for a fetal monitor, relating to the field of medical equipment. The digital pulsed ultrasound transmitting device comprises an ultrasound probe and an ultrasound transmitting circuit which are connected with each other, wherein the ultrasound probe employs a plurality of wafers which integrates transmission and reception functions into a whole and has the transmitting frequency of 1.0 MHz, the wafers are arranged on the radiation surface of the probe uniformly. The digital pulsed ultrasound transmitting device has wide ultrasound transmission acoustic beams, and is hardly affected by fetal movement and uterine contraction during detection upon a fetal heart signal in a monitoring process, so that the monitoring result is more accurate and reliable; the transmitting circuit generates a transmission electric excitation square wave signal of 1.0 MHz by using a CPLD (Complex Programmable Logic Device) digital circuit, the transmission electric excitation square wave signal is coupled to the ultrasonic probe by a resonant amplification circuit so as to generate an ultrasonic wave of 1.0 MHz; and the digital pulsed ultrasound transmitting device is low in transmission frequency, less in attenuation in an ultrasound propagation process, strong in reflection echo, high in flexibility, low in noise, strong in anti-interference ability, and steady and reliable in performance.

The invention provides a pregnancy and birth real-time monitoring device and a pregnancy and birth real-time monitoring method. The pregnancy and birth real-time monitoring device comprises a fetus information acquisition unit, a three-axis acceleration sensor attached to the back and waist of a mother body, a signal processing unit and a control unit, wherein the fetal information acquisition unit comprises an electrocardio reference electrode attached to the back and waist of the mother body and an electrocardio electrode array attached to the abdomen of the mother body; and/or the fetal information acquisition unit comprises a sound sensor which is attached to the central position of the abdomen of the mother body and is used for acquiring fetal heart sound signals; the output ends of fetal electrocardiogram electrodes, the sound sensor and the three-axis acceleration sensor are connected to the signal processing unit, and the output end of the signal processing unit is connected with the control unit. The pregnancy and birth real-time monitoring device adopts multiple types of sensors to monitor the fetus in real time, can objectively and accurately monitor the fetal movement intensity, the fetal movement frequency, the fetal movement type, the fetal heartbeat intensity and the like, and can harmlessly monitor the fetal movement intensity, the fetal movement frequency, thefetal movement type, the fetal heartbeat intensity and the like for a long time in real time at home or in hospitals.

A fetal movement monitoring method that limits the ultrasound radiation to safe levels and conforms to the ALARA principle is disclosed. The disclosed method of monitoring fetal movements by Doppler ultrasound comprises accumulating the time for which ultrasound is radiated into a subject, comparing the accumulated time with a first reference total time, counting the number of fetal movements in the subject, comparing the number of movements with a reference number, deciding at least one of a further action of the device and an action to be recommended to the subject and conveying at least one of a further action of the device, an information to the subject about the counted fetal movements and an action recommended to the subject. A Doppler ultrasound device for monitoring fetal movements in a subject is also disclosed.

The invention discloses a teaching model for abdominal examination skill training during pregnancy. The teaching model comprises a pregnancy abdomen phantom, wherein the pregnancy abdomen phantom can be fixed to the abdomen of a whole female body mode, a uterus phantom and a pelvis inlet phantom are arranged in the pregnancy abdomen phantom, a fetus phantom is arranged in the uterus phantom, and liquid is filled between the fetus phantom and the inner wall of the uterus phantom. A first microphone is arranged on the fetus phantom and used for playing fetal heart sound and umbilical cord sound, a second microphone is arranged on the uterus phantom and used for playing uterine souffle, placental souffle and aorta abdominalis souffle, and the first microphone and the second microphone are in signal connection with a player. A vibration device for simulating fetal movement is arranged on the fetus phantom and is in signal connection with the controller. The teaching model for abdominal examination skill training during pregnancy has the advantages of being simple in structure, good in simulation performance and good in teaching effect.

The invention discloses a bellyband type fetal movement monitor. The bellyband type fetal movement monitor comprises a capacitive sensor array, a bellyband, a signal processing circuit and a handheld mobile terminal, wherein the capacitive sensor array is constructed by metal interlayers and insulating layers in a matching way; the bellyband is connected to the two ends of the capacitive sensor array; the signal processing circuit is used for processing the capacitive change of the capacitive sensor array; the handheld mobile terminal is wirelessly connected with the signal processing circuit; the signal processing circuit is embedded into the bellyband. The bellyband type fetal movement monitor is simple in structure, is convenient to operate, is safe and reliable, has no side effect, can be used for accurately monitoring the fetal movement of a pregnant woman for a long time, and has very high practical value and market prospect.

The invention relates to the technical field of fetal movement monitoring, in particular to a portable fetal movement monitor comprising a smart bracelet worn on the wrist of a pregnant woman, a fetalmovement sensing patch attached to the belly of the pregnant woman and a fetal heart sensing patch attached to the belly of the pregnant woman. The portable fetal movement monitor is attached to thebelly of the pregnant woman through a set magnetic sensor chip, can position the fetus in the pregnant woman conveniently, and monitors the activity of the fetus to obtain fetal movement data. Fetal heart signals are monitored through a set vibration sensor chip, and the monitored fetal heart signals are counted through a fetal movement counting module to obtain the fetal heart data. The smart bracelet is used as a collection terminal, and the acquired fetal movement data and fetal heart data are digitally displayed through the smart bracelet for the pregnant women to observe. At the same time, the overall monitor is small in structure, complete in function, convenient to carry and suitable for home use.