Integrated wearable device for detection of fetal heart rate and material uterine contractions with wireless communication capability
First Claim
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1. An integrated wearable device for use on a maternal body including at least one fetus to detect sounds which are indicative of a fetal heart rate and biopotentials indicative of maternal uterine contractions and for wireless communication to a local wireless communications device the wireless communications device providing for data visualization relating to fetal heart rate and maternal uterine contractions, comprising:
- an adhesive planar, flexible patch, the patch having a center, the adhesive patch adapted for attachment to the maternal body,an ultrasound transducer array, the ultrasound transducer array being an array located at the center of the patch composed of a plurality of transducer elements, the ultrasound transducer array being supported by the patch to maintain the ultrasound transducer array in an operative contacting relationship to the maternal body for detection of at least signals indicative of the fetal heart rate,a transmission system coupled to the ultrasound transducer array to provide signal information for transmission into the maternal body using the ultrasound array,a planar microphone array, the microphone array including a first plurality of microphones being arranged in a first circular array located a first fixed distance from the center of the planar, flexible patch, and a second plurality of microphones being arranged in a second circular array located a second fixed distance from the center of the patch, where the first fixed distance and second fixed distance are different, the microphone array being positioned to be placed in operative contacting relationship to the maternal body for detection of at least signals indicative of the fetal heart rate,a receiver system coupled to the ultrasound microphone array to receive signal information including both frequency and phase information at least indicative of the fetal heart rate through the ultrasound array,a continuous wave Doppler detector, the detector coupled to the receiver system to utilize both frequency and phase of the received signal information to determine the fetal heart rate,two or more electrodes, the electrodes being supported by the patch to maintain the electrodes in an operative relationship to the maternal body for detection of at least biopotential signals indicative of maternal uterine contractions,a switch disposed between the (1) transmission system and receiver system and (2) the ultrasound array,control circuitry coupled to the transmission system and the receiver system to selectively actuate the switch between transmitting and receiving signals through the ultrasound transducer array and the microphone array, the control circuitry further including an analytics processor to determine the fetal heart rate and maternal uterine contractions, and,a wireless communication system, the wireless communication system sending the information relating to the signals indicative of the fetal heart rate and the biopotential signals indicative of maternal uterine contractions to the local wireless communications device in real time for data visualization relating to fetal heart rate and maternal uterine contractions.
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Abstract
A wearable patch is provided for use on the body which preferably comprises an ultrasound sensor array, a transmission system coupled to the ultrasound sensor array adapted to provide signal information for ultrasound transmission into the body, and a receiver system coupled to the ultrasound sensor array adapted to receive signal information from the reflected ultrasound signal received from the body. A control circuitry is coupled to the transmission system and the receiver system. The patch is preferably provided with a wireless communication system to permit external control and or communication. Applications range from diagnostics and monitoring, to rehabilitation and wound healing.
65 Citations
32 Claims
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1. An integrated wearable device for use on a maternal body including at least one fetus to detect sounds which are indicative of a fetal heart rate and biopotentials indicative of maternal uterine contractions and for wireless communication to a local wireless communications device the wireless communications device providing for data visualization relating to fetal heart rate and maternal uterine contractions, comprising:
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an adhesive planar, flexible patch, the patch having a center, the adhesive patch adapted for attachment to the maternal body, an ultrasound transducer array, the ultrasound transducer array being an array located at the center of the patch composed of a plurality of transducer elements, the ultrasound transducer array being supported by the patch to maintain the ultrasound transducer array in an operative contacting relationship to the maternal body for detection of at least signals indicative of the fetal heart rate, a transmission system coupled to the ultrasound transducer array to provide signal information for transmission into the maternal body using the ultrasound array, a planar microphone array, the microphone array including a first plurality of microphones being arranged in a first circular array located a first fixed distance from the center of the planar, flexible patch, and a second plurality of microphones being arranged in a second circular array located a second fixed distance from the center of the patch, where the first fixed distance and second fixed distance are different, the microphone array being positioned to be placed in operative contacting relationship to the maternal body for detection of at least signals indicative of the fetal heart rate, a receiver system coupled to the ultrasound microphone array to receive signal information including both frequency and phase information at least indicative of the fetal heart rate through the ultrasound array, a continuous wave Doppler detector, the detector coupled to the receiver system to utilize both frequency and phase of the received signal information to determine the fetal heart rate, two or more electrodes, the electrodes being supported by the patch to maintain the electrodes in an operative relationship to the maternal body for detection of at least biopotential signals indicative of maternal uterine contractions, a switch disposed between the (1) transmission system and receiver system and (2) the ultrasound array, control circuitry coupled to the transmission system and the receiver system to selectively actuate the switch between transmitting and receiving signals through the ultrasound transducer array and the microphone array, the control circuitry further including an analytics processor to determine the fetal heart rate and maternal uterine contractions, and, a wireless communication system, the wireless communication system sending the information relating to the signals indicative of the fetal heart rate and the biopotential signals indicative of maternal uterine contractions to the local wireless communications device in real time for data visualization relating to fetal heart rate and maternal uterine contractions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification
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Current AssigneeGary and Mary West Health Institute
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Original AssigneeGary and Mary West Health Institute
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InventorsLahiji, Rosa R., Roham, Masoud, Mehregany, Mehran
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Primary Examiner(s)Turchen, Rochelle
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Application NumberUS13/094,678Publication NumberTime in Patent Office2,891 DaysField of Search600301, 600437, 600438, 600450, 600453, 600459US Class CurrentCPC Class CodesA61B 2560/0412 Low-profile patch shaped ho...A61B 5/02411 of foetusesA61B 5/391 of genito-urinary organsA61B 5/4325 of the uterine cavities, e....A61B 5/4362 Assessing foetal parametersA61B 8/02 Measuring pulse or heart rateA61B 8/06 Measuring blood flow measur...A61B 8/0866 involving foetal diagnosis;...A61B 8/0883 for diagnosis of the heartA61B 8/0891 for diagnosis of blood vesselsA61B 8/4236 characterised by adhesive p...A61B 8/4427 Device being portable or la...A61B 8/4472 Wireless probesA61B 8/488 involving Doppler signalsA61B 8/5207 involving processing of raw...A61B 8/565 involving data transmission...A61N 7/00 Ultrasound therapy lithotri...
