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For Clinicians

There’s a better way to do NSTs

For clinicians · why practices use INVU™

Nuvo’s platform enables you to conduct NSTs with patients wherever they are.

Expand access to careNuvo’s FDA-cleared remote monitoring platform enables your patients to conduct NSTs from home, their office, or any other quiet space.
Enhance operational efficiencyRun multiple remote NSTs simultaneously, saving staff time and opening exam rooms for other appointments.
Improve patient satisfactionGive patients part of their life back with NSTs without the travel, PTO, or other issues.
Remote triage to avoid OB-ED visitsWhen a patient calls in considering going to the OB-ED, use Nuvo to make a data-driven decision on the situation. In many cases, unnecessary OB-ED visits can be avoided.
“Nuvo has been amazing! It’s had a huge impact on opening appointment times for other patients and allows patients more freedom and the opportunity to save PTO.”Alisa King, OB Nurse Manager
McMorries OBGYN & Infertility
Reimbursed under existing CPT code 59025 for NSTsNSTs conducted with Nuvo’s platform are reimbursable under existing global CPT code 59025.For payers →
Remote NSTs vs traditional care

Traditional care and next-gen care, side by side

The same prescribed test, with the clinic’s time spent on reading tracings instead of running rooms.

An in-clinic NST: a nurse with an expectant mother on a bedside CTG monitor
Traditional care

The in-clinic NST

Clinic-dependent. Episodic.

  • The expectant mother travels to the clinic for every test, often once or twice a week.
  • One patient, one monitor and one room for each session.
  • Staff place and readjust the Doppler and pressure (TOCO) transducers.
  • The TOCO belt picks up fewer contractions as BMI rises.1
An expectant mother wearing the INVU Sensor Band, from anywhereExpectant mother · from anywhere
Her clinician reviewing the session remotely in INVU ProHer clinician · remotely in INVU™ Pro
Next-gen care

The remote NST with INVU™

Recorded from anywhere. Reviewed remotely.

  • The expectant mother wears one soft band and starts each session in the INVU™ App, from anywhere, on the schedule you prescribe.
  • Electrical and acoustic sensors: no ultrasound transducer and no pressure belt to position.
  • Her clinician reviews the full tracing remotely in INVU™ Pro, several sessions side by side.
  • At Penn Medicine, 93.9% of 131 home NSTs were interpretable and 88.5% of appointments needed no office visit.3

Sources: 1 Schwartz et al., AJOG 2022 · 3 Hamm et al., AJOG 2023. Screen: INVU™ Pro, sample data.

INVU™ Pro

What your team sees in INVU™ Pro

INVU™ Pro shows your team the full tracing of every home NST. The clinician interprets it and decides.

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INVU™ ProThe professional dashboard
INVU Pro session overview on a clinic computer (sample data)
1

Fetal heart rate

The full tracing, beat by beat.

2

Maternal heart rate

Recorded at the same time, on the same time line.

3

Contractions

Uterine activity under the heart rates.

4

Kick and contraction marks

Added by the expectant mother during the session.

Live sessions

Several sessions at once, side by side.

Care plan

Prescribe the sessions and set the schedule.

Appointments

Every scheduled session in one list.

A patented decision-support layer is in development (not FDA-cleared). Screens: sample data.

Your workflow

Prescribed, scheduled, repeated

Equipment and training are fully managed by Nuvo, from the box at the expectant mother’s door to the kit coming back.

The protocol
PrescribedEvery session belongs to the care plan the OB prescribes.
ScheduledSet in advance with the expectant mother, in virtual clinic hours.
RepeatedHome session and clinic review repeat until the care plan ends.
On the OverviewThe six steps, from prescription to kit returnHow INVU™ works →
Accuracy

Tested against the hospital’s own standards

All clinical evidence →

Heart rate was compared with the bedside CTG monitor. Contractions were compared with the intrauterine pressure catheter (IUPC), the gold standard, in women who also wore the standard external TOCO belt.

Contractions · against the catheter
81.8% vs 37.5%
INVU™
81.8%
TOCO
37.5%

of catheter-confirmed contractions were detected by INVU™ and by the TOCO belt, in the same 39 women in labour (P<.0001).1

Schwartz et al., AJOG 2022 →
Contractions · by body size
No drop with BMI
86
56
80
35
87
30
BMI <2525–29.930+
INVU™TOCO% of catheter contractions

TOCO detection fell from 55.9% to 30.3% in women with obesity (P=.024); INVU™ did not change with BMI (P=.13). INVU™: 78 women; TOCO: the 39 who also wore it.1

Schwartz et al., AJOG 2022 →
Fetal heart rate · against bedside CTG
r = 0.92
−100 bpm+10

Mean difference −0.30 bpm; 95% limits of agreement −8.84 to +8.24 bpm, inside the pre-set ±10 bpm. Maternal heart rate r = 0.97. 147 women, four centres in the US, Germany and Israel.2

Mhajna et al., AJOG MFM 2020 →
Study details and limits

The contraction study was done in labour, with a catheter already in place for clinical reasons; INVU™ also marked more contractions the catheter did not record (24.3% against 10.7% for TOCO, in the same 39 women). The heart-rate study was done in clinic, before labour, with staff applying the band. Both studies were funded by Nuvo. The home study at Penn had no comparison group. Each paper’s page gives the details.

Clinical validation

Published evidence, study by study

Each card opens the study summary on our Clinical Evidence pages, with the full citation, design, limits and funding.

Accuracy against the hospital standard

Remote NSTs at home

Independent research and clearances

The validation studies and the Penn home study were funded by Nuvo; the Sheba studies were led and designed by Sheba investigators. All clinical evidence →

The technology in brief

One band, three signals

The INVU™ Sensor Band combines biopotential (ECG), acoustic and motion sensors. The INVU™ Data Platform turns the recorded signals into fetal heart rate, maternal heart rate and contractions; contractions are read from the mother’s own heart signals4, with no pressure (TOCO) belt.

Clearance and indication

FDA 510(k) K210025 (2021) and K221046 (2022)

Remote, self-administered monitoring of fetal heart rate, maternal heart rate and uterine activity for antepartum non-stress testing, at home or in a healthcare facility; singleton pregnancies from 32 weeks; on a physician’s order.

Get in touch

Questions about INVU™ by Nuvo?

Request a demo, or write to us and we will come back to you.