41 results about "Uterine activity" patented technology

A maternal-fetal monitoring system for use during all stages of pregnancy, including antepartum and intrapartum stages. The maternal-fetal monitoring system of the subject invention comprises (1) a set of sensors; (2) an amplifying/filtering means; (3) a computing means; and (4) a graphical user interface. Accurate clinical data, which can be extracted and provided to the user in real-time using the system of the invention, include without limitation, maternal electrocardiogram (ECG) signals, maternal uterine activity signals (EHG), maternal heart rate, fetal ECG signals, and fetal heart rate. In a preferred embodiment, the maternal-fetal monitoring system of the invention includes an intelligence means, such as a neural network system, to analyze and interpret clinical data for use in clinical diagnosis antepartum, intrapartum and postpartum, as well as delivery strategy.

A sensor interface system for providing a connection between at least one sensor and a maternal-fetal monitor, wherein the interface system converts electrical muscle activity captured by the sensor(s) into uterine activity data signals for use by the maternal-fetal monitor. The sensor interface system of the invention preferably includes a conversion means for converting the signals from the sensor(s) into signals similar to those produced by a tocodynamometer.

An abdominal sonar includes an ultrasound transducer array with a plurality of ultrasound transducers. The abdominal sonar further includes at least one additional ultrasound transducer. A digital signal processor is communicatively connected to the plurality of ultrasound transducers and the at least one additional ultrasound transducer. The digital signal processor individually operates the plurality of ultrasound transducers and the at least one additional ultrasound transducer. The digital signal processor receives reflected ultrasound signals back from each of the plurality of ultrasound transducers and the at least one additional ultrasound transducer and converts the received reflected ultrasound signals into an audio signal. A system for monitoring a pregnancy includes an ultrasound transducer array and at least one additional ultrasound transducer. A digital signal processor is communicatively connected to the ultrasound transducer array and the at least one ultrasound transducer. The digital signal processor converts received raw fetal heart and uterine activity waveforms into an audio signal. A wireless transmitter broadcasts the received audio signal. A wireless receiver receives the broadcast audio signal. A patient monitor extracts the raw fetal heart and uterine activity waveforms from the audio signal and processes the waveforms to obtain an indication of fetal heart rate and an indication of uterine activity.

A fetal monitoring device includes a piezofilm sheet, a first electrode, and a second electrode. A controller is operably connected to the piezofilm sheet, first electrode, and second electrode and receives a biopotential and a piezofilm signal. The controller derives at least one of a maternal heart rate and a uterine activity for the biopotential and derives at least one of a fetal heart rate and fetal motion detection from the piezofilm signal. The controller derives an index of fetal health and operate an indicator to present the derived index of fetal health.

A combinational fetal heart rate monitor and uterine activity measuring device for use on a pregnant patient. The fetal heart rate and uterine activity monitor comprising a plurality of electrodes disposed to be attached on the abdomen of the patient and an ultrasound transducers disposed to be attached on the abdomen of the patient. An energy source is operable to generate an excitation signal and the energy source is connected to a multiplexer which is connected between the plurality of electrodes and the ultrasound transducer, the multiplexer being selectively positioned to direct the excitation signal from the energy source to either the electrode or the ultrasound transducer. An amplifier connected to the energy source compares the excitation signal to the excitation signal after it passes through the abdomen of the patient. The signal from the amplifier is demodulated and processed to calculate physiological parameter based on the change in the excitation signal.

A seamless, smart fetal monitoring garment and methods of using thereof. The system includes a knitted or interwoven garment having a multiplicity of conductive textile electrodes for sensing maternal and fetal electrical vital signals. The maternal and fetal electrical vital signals are selected from a group including maternal heart rate, fetal heart rate and electromyogram (EMG) activities including uterine activities. The method includes wearing the garment, acquiring electrical mixed common, maternal and fetal vital signals from surface region of a pregnant woman, using the plurality of textile electrodes, optimally weighted summing-up the acquired signals, analyzing the summed-up signals to thereby extract the maternal signal and the fetal signal, including determining their heart rates, and including detecting health hazards and in some embodiments, including detecting a uterine contraction sequence suggesting the need to be hospitalized for birth giving.

A uterine activity monitoring device and method for monitoring uterine activity on a nearly continuous basis. The device may comprise a belt configured to fit around a pregnant patient's abdomen, with a plurality of, uterine contraction sensors. These sensors may be protruding contraction sensing buttons, disposed generally perpendicular to the patient's skin. In order to avoid signal distortions caused by patient movement, the belt will often have at least one ambient motion sensor configured to monitor non-uterine contraction movements and produce background movement signals. These ambient motion sensors may be accelerometers and stretch or pressure disposed generally parallel to the patient's skin. The device will have an onboard processor communicate wirelessly with a variety of external monitoring and management systems, such as wrist worn monitors, cell phones, and remote patient management websites.

An electrode interface system for providing a connection between at least one electrode and a maternal-fetal monitor, wherein the interface system converts electrical muscle activity captured by the electrode(s) into uterine activity data signals for use by the maternal-fetal monitor. The electrode interface system of the invention preferably includes a conversion means for converting the signals from the electrode(s) into signals similar to those produced by a tocodynometer.

A decision support tool is provided for predicting the neonatal vitality scores of a fetus during delivery, the scores being an indicator of future health for the infant anticipated to be born within a future time interval, measured as time to birth. The predicted neonatal vitality score is determined from measurements of physiological variables monitored during labor, such as uterine activity and fetal heart rate. Fetal heart rate variability and patterns may be detected and computed using the monitored physiological variables, and neonatal vitality scores may be predicted based, at least in part, on the variability metrics and fetal heart rate patterns. Scores may be predicted for different delivery methods, such as vaginal delivery or cesarean delivery, for different time-to-birth intervals. In this way, these scores may be used for decision support for care plans during labor, such as increased monitoring and/or modifying the delivery type.

An apparatus for identifying the level of fetal risk during labor, the apparatus comprising: at least one computer operative to receive input signals indicative of at least fetal heart rate ("FHR") and maternal uterine activity in a patient, the computer operative (i) to determine baseline FHR variability, FHR accelerations, and FHR decelerations, and (ii) to determine when each of at least (a) FHR, (b) baseline FHR variability, (c) FHR accelerations, (d) FHR decelerations, and (e) maternal uterine activity exhibit at least one non-reassuring characteristic from among a plurality of pre-defined non-reassuring characteristics for at least the parameters (a) through (e). The computer is further operative to (iii) receive user-inputs indicative of the presence in the patient of one or more (f) maternal risk factors, (g) obstetrical risk factors, and (h) fetal risk factors which elevate the level of fetal risk during labor, and (iv) to determine at a given point in time during labor a present level of risk to the fetus which takes into account only: the total number of the parameters (a) through (e) that are each simultaneously, independently exhibit at least one of the non-reassuringcharacteristics at the given point in time during labor, and the total number of the parameters (f) through (h) which are present. An output depicts in a single graphical user interface one or more ofthe parameters (a) through (h) over time during labor, and the appearance of which single graphical user interface includes indicia for indicating the determined present level of risk to the fetus atany given point in time during labor and signaling the need for possible intervention in labor.

Systems and methods of maternal and fetal monitoring include acquiring ultrasound physiological data with an ultrasound transducer. A plurality of electrodes acquire biopotential physiological data from the skin of a patient. A controller receives the ultrasound and biopotential physiological data and calculates fetal heart rate (fHR) values, maternal heart rate (mHR) values, and uterine activity (UA) values from the ultrasound and biopotential physiological data.

The invention relates to a method for automatically identifying uterine contraction based on a uterus electromyographic signal and belongs to the technical field of monitoring of the obstetrics department. The method comprises the steps that firstly, the uterus electromyographic signal O is collected; the uterus electromyographic signal is pre-processed, and the pre-processed uterus electromyographic signal P is obtained; the average value E of the amplitude value of the pre-processed uterus electromyographic signal P is recorded, the upward movement alphaE of the amplitude value of the pre-processed uterus electromyographic signal P is obtained, and the uterus electromyographic signal U after upward movement of the amplitude value is obtained; the zero-crossing rate Z of the uterus electromyographic signal U after upward movement of the amplitude value is calculated, and a zero-crossing rate function Z' is generated; a result after the zero-crossing rate function Z' is uniformized isused as an input variable of a function M, and output of the function M is used as a value of a weight function Q; the weight function Q and the pre-processed uterus electromyographic signal P are correspondingly multiplied, and the uterus electromyographic signal K after weighting is obtained; an envelope curve of the uterus electromyographic signal K is acquired, and with the amplitude value ofthe curve as a function, a uterine contraction occurrence probability grey-scale map is generated. According to the method, the uterine contraction signal is automatically identified, the uterine contraction occurrence probability is visually displayed, and a new way is provided for monitoring of uterine activity.

The invention discloses a traditional Chinese medicinal composition. The traditional Chinese medicinal composition comprises the following raw medicines, by weight, 20-80 parts of Semen Impatientis, 20-60 parts of Herba Leonuri, 15-45 parts of Chinese angelica, 15-45 parts of Peach Seed, 20-30 parts of safflower, 15-60 parts of myrrh, 15-30 parts of Medicinal Cyathula Root, 10-35 parts of Semen Plantaginis, 15-60 parts of Rhizoma Cyperi, and 10-25 parts of dry ginger. In the invention, syndrome differentiation typing of retained fetal membranes is carried out against the much deficiency and stasis physiopathologic characteristics of postpartum cows to summarize the total pathogenesis blood stasis, so the compatible combination of all the above medicines is carried out to reach blood circulation activating, stasis dissolving, water retention alleviating and swelling diminishing efficacies, and the uterine activity is adjusted to recover the normal contraction of the uterus, improve the body blood circulation, and eliminate the hyperemia and extracasated blood of the placental villus, so it is benefit for discharging blood in the villus, reducing the permeability of the vascular wall and inhibiting oedema and inflammations, thereby the pressure in the crypt decreases, and the afterbirth sheds.