INVU™ has been studied from every direction a clinician would want: validated against established clinical standards, cleared by the FDA, used at home by high-risk patients, built into new models of care, and picked up by researchers who have no connection to Nuvo. Since 2018 that record has grown every year, in journals, at conferences and in clinics.
This page gives the two findings clinicians ask about first, then opens a door to each part of the record.
of contractions confirmed by the intrauterine pressure catheter were detected by INVU — more accurate than the standard external belt, and not affected by the mother’s BMI.
Schwartz et al., AJOG 2022 · 118 women, Penn Medicine and UAMS →correlation between INVU’s fetal heart rate and hospital cardiotocography in 147 pregnant women, with a bias of less than one beat per minute.
Mhajna et al., AJOG MFM 2020 · Hadassah, Heidelberg, Penn, EVMS →Heart rate against standard-of-care CTG; contractions against the intrauterine pressure catheter.
3 papers · 2 abstracts · 2 trialsOpen →PART 2Cleared by the FDAThree 510(k) clearances, from heart rate to remote nonstress tests.
3 clearancesOpen →PART 3Used at home by high-risk patientsRemote nonstress tests at Penn Medicine and Banner Health.
3 papers · 2 abstractsOpen →PART 4Part of new models of careHospital-at-home at Sheba, randomized and pragmatic trials in the US.
2 papers · 2 trialsOpen →PART 5Chosen and cited by other researchersGroups outside Nuvo that used INVU, and reviews that name it.
4 studies · 14 reviewsOpen →
Sheba’s hybrid unit lets women with high-risk pregnancies be hospitalised at home and visit twice a week. A 2026 study of 40 interviews looks at what changed; INVU provides the fetal heart tracing.
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At Sheba, 20 women with gestational diabetes alternated weekly clinic and home visits, with INVU for the nonstress test. 38 of 39 home visits were complete, taking 59 minutes against 159 in clinic.
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Penn asked high-risk patients who did their nonstress tests at home with INVU how it went. They rated it acceptable, valued skipping clinic trips, and their comments on belt fit changed the device.
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After a year of INVU in its rural telemedicine programme, a Banner Health obstetrician wrote to AJOG: most remote NSTs were readable, and patients stopped missing visits.
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At Penn Medicine, 29 women with high-risk pregnancies did their nonstress tests at home with INVU. 93.9% of tests could be read, and 88.5% of appointments needed no clinic visit.
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Researchers in Czechia reviewed fetal monitoring for the post-COVID era. Of six certified monitors they compared, they describe INVU as the only one built for home monitoring rather than labour.
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In 118 women in labour, INVU detected 84.8% of the contractions confirmed by the intrauterine catheter, beat the external TOCO belt (82% vs 38%) and kept working in women with obesity.
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The engineering paper behind INVU’s contraction reading: as the uterus tightens, the mother’s heartbeat signals change shape. In 41 women in labour, the method found 89.8% of catheter-confirmed contractions.
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147 women at four centres wore INVU and the hospital monitor at the same time. Fetal heart rate agreed to within about 8 to 9 beats per minute, with no ultrasound and no repositioning.
Read the highlight →Beyond the papers: the people, places and press behind INVU™.
VoicesFelicia, patientNuvo patient says “My experience with Nuvo has been super easy.”
In the NewsGVMH news releaseGolden Valley Memorial Healthcare expands prenatal care with remote monitoring
VoicesAlisa King, BSN, RN, CLCOB nurse about Nuvo: It’s really been a game changer for our office
Events & AwardsTIMEINVU™ by Nuvo named one of TIME’s Best Inventions
In the NewsForbesForbes: Nuvo improves pregnancy care, even for women living through a war
VoicesNacogdoches Women’s CenterReal Stories: Testimonials on INVU by NUVO™ Remote NST at Nacogdoches Women’s Center
Whether you would like to know more about INVU™, explore a research collaboration, or partner with us, we would love to hear from you.
Email info@nuvocares.com ↗