Wearable device monitors health of foetus

Written by on June 2, 2015 in News with 0 Comments

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Israeli medical experts have developed a wearable mobile monitor to keep a close watch on pregnant women and their foetuses as they go about their everyday lives.

The PregSense monitor has sensors woven into an elastic harness to provide data around the clock on the status of the foetus and the mother’s health in the later stages of pregnancy.

A bluetooth-enabled device attached to the monitor collects and transmits data such as the mother and baby’s heart rates to a smartphone and stores it on a secure cloud-based database accessible only to expectant mothers and their physicians.

The device is the work of the Nuvo Group, led by Oren Oz. He says a smartphone app will eventually provide a visual representation of the data gathered by the wearable monitor.

“Now you can see both you and the baby, the heart and all the data. What you are going to get in the app eventually is visualisation that can tell you where the hand is, you’re going to see if the baby is awake, you can hear your baby’s heartbeat anytime you want and obviously everything about you as the mom, the activity, if you are relaxed, how you sleep, your activity, your heart activity, everything about your pregnancy will be put into data,” he explained as he demonstrated the device for mother-to-be, Michal.

Oz founded the Nuvo Group with another pregnancy technological innovation, Ritmo, a strap allowing mothers to stream soothing music from a smartphone to gently stimulate the foetus.

The Israeli tech firm hopes the device will reassure anxious mothers like Michal, in week 32 of her pregnancy, who require monitoring without having to see her doctor.

“It connects me a lot more with the foetus, I’ll hear the foetus whenever I want and it will be easier for me. I also won’t have to be dependent on a doctor, at any given time I’ll be able to connect, to see and hear,” Michal said.

The PregSense strap is designed to collect data to help physicians detect symptoms that may lead to complications in pregnancy earlier.

“It’s the first time that you have a huge amount of data of women and babies together about heart rate, kickings, position for foetus etc and we will be able to analyse this data to predict about events of pregnancy, like pre-term labour like pre-eclampsia and more and we will be able to intervene in the right time,” said Varda Shalev, a medical informatics expert and active care primary physician. She is an external consultant to the Tel Aviv-based Nuvo Group.

The PregSense monitor does not use ultrasound like traditional doppler devices, which require pregnant women to lie still whilst physicians manually track the heartbeat of the foetus. The sensors use a patented algorithm to philtre the signals it picks up into two heartbeat recordings.

The device developers say the passive sensors avoid the potential harm to tissue posed by ultrasonic devices and is perfectly safe for both the mother and baby during continuous monitoring.

The data collected is of high enough quality to be useful for clinicians and researchers.

“The sophistication of the technology and the sophistication of the sensors that we had designed for that is really making what used to be clinical data collection into passive continuous reliable home data collection,” said Professor Nathan Intrator, a bio signal expert and chief technology officer for Nuvo Group .

Nuvo Group’s advisory board member Professor Simcha Yagel, who also heads the division of obstetrics and gynaecology at Hadassah, Hebrew University Medical Centres, said the electrocardiogram (ECG) provides the added value to the device.

“I think the new achievement of Nuvo is in the field of detection of the ECG traces of the foetus, not only the sound not only the ultrasound but truly an electronic ECG,” he told Reuters during a routine ultrasound scan for a pregnant woman in hospital.

Oz said doctors would appreciate not having to use traditional heavy machinery, such as the cardiotocography (CTG) or electronic foetal monitor (EFM) machines to trace the foetal heartbeat. Instead, they could track and diagnose patients remotely, allowing quick detection and intervention.

“The immediate impact, the immediate benefit to doctors is that we are replacing the bulky CTG machines which are heavy¬† and connected to the wall with the light weight mobility and continuous monitoring.” said Oz.

The consumer version of the product, known as Ritmo Beats, is to be launched for users by the end of 2015 and will cost around $250 USD, Oz said. The clinical grade FDA-regulated device, to be teamed with a group of physicians to monitor the data and alert the mother of any unexpected events, has a 2016 launch target.

Oz is certain his invention will change pregnancy care management and “bring better care to more women at a fraction of the cost”.

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