Maternal & Newborn
Continuity-of-Care Platform
Technical and clinical documentation for PulseCare an offline-first platform connecting pregnant women, community health workers, traditional birth attendants, and primary healthcare centres across underserved communities in Nigeria.
What is PulseCare?
PulseCare is a digital health platform designed for the specific reality of maternal and newborn care in low-resource, rural Nigeria where the power goes out, the internet doesn't reach, and the nearest skilled healthcare worker is often hours away.
Most women in communities like Toro LGA, Bauchi State attend at least one antenatal care (ANC) visit. But they disappear from the health system during delivery and the postnatal period exactly when the risk of death is highest. PulseCare exists to close that gap.
PulseCare provides the infrastructure that keeps mothers and newborns connected to care from pregnancy through the postnatal period without requiring continuous internet connectivity, expensive equipment at community level, or a smartphone in every household.
| Metric | Value |
|---|---|
| Nigeria maternal mortality ratio | 1,047 per 100,000 live births (WHO) |
| Sub-Saharan Africa share of global maternal deaths | ~70% |
| Annual births in Nigeria (TAM) | ~7.5 million |
| Annual births in Bauchi State (SAM) | ~290,000 (estimated) |
| Pilot site | Toro LGA, Bauchi State, Northern Nigeria |
Who it's for
PulseCare serves three interconnected groups of users, each with a different role in the care continuum.
| User Group | Role | Primary Tool |
|---|---|---|
| Pregnant women & postpartum mothers | Primary beneficiaries receive reminders, follow-up visits, referral support | SMS reminders, home visits by CHW/TBA |
| Community Health Workers (CHWs) | Register women, record visits, flag danger signs, coordinate referrals | PulseCare mobile app (Android, offline) |
| Traditional Birth Attendants (TBAs) | Conduct home deliveries, record postnatal observations, escalate emergencies | PulseCare mobile app (Android, offline) |
| PHC nurses & midwives | Conduct ANC visits, measure BP with CRADLE VSA, receive referral alerts | PHC Dashboard + CRADLE VSA device |
| PHC administrators | Track active cases, monitor CHW activity, review missed follow-ups | PHC Dashboard (web) |
| State health authorities | Programme-level monitoring, data review, policy alignment | Aggregate dashboard reports |
How the workflow works
PulseCare follows the maternal and newborn care journey end-to-end from a woman's first ANC visit through delivery and the critical postnatal period.
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1Registration A CHW or TBA registers the pregnant woman in the PulseCare mobile app name, age, gestational age, village, phone number. Works fully offline.
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2Antenatal visit at PHC At the PHC, the nurse measures blood pressure using the CRADLE VSA device. Readings and the traffic light alert (Green/Amber/Red) are recorded in the PHC dashboard. High readings trigger immediate referral review.
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3CHW home visits CHWs conduct structured home visits between ANC appointments. They complete the danger sign checklist, record observations, and check wearable data. The app flags any high-risk patterns immediately.
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4Danger sign detected → risk engine fires If a danger sign is flagged fever, heavy bleeding, severe headache, newborn feeding difficulty the risk engine classifies the case as High Risk and triggers the referral workflow. An SMS alert is sent to the supervising PHC.
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5PHC receives alert The PHC dashboard shows the incoming referral. Staff coordinate transport, prepare for the patient, and alert LifeBank if blood or oxygen may be needed.
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6Postnatal follow-up After delivery, the system schedules postnatal visit reminders for the CHW. The mother and newborn are monitored separately, each with their own danger sign checklist. Missed visits trigger alerts.
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7Data sync When a CHW or TBA reaches connectivity WiFi, mobile data, or a sync point at the PHC all offline records sync automatically to the central server. No data is lost during offline periods.
CHW Mobile App
The core tool for community health workers and traditional birth attendants. Built for Android, designed for low-end devices, and engineered to work with no internet connection.
Key screens
| Screen | What it does |
|---|---|
| Login | Phone number login with offline authentication support. Language selection (English / Hausa planned). |
| Maternal Registration | Name, age, gestational age, phone number, village/community, assigned CHW/TBA. |
| Newborn Registration | Birth weight, birth date, delivery type, feeding status, assigned mother record. |
| Visit Recording | Temperature, heart rate, symptom checklist, danger sign flags, referral status, notes. |
| Danger Sign Alert | High-risk warning banner, referral recommendation, nearest PHC information, SMS escalation button. |
| Immunisation & Follow-Up | ANC reminders, postnatal visit schedule, newborn immunisation calendar, missed visit alerts. |
| Wearable Sync | Displays last-synced readings from the wearable device heart rate trend, temperature, SpO2, movement. |
SMS Fallback System
For communities where smartphones are unavailable or where even the CHW device has run out of charge, PulseCare falls back to structured SMS communication.
| SMS Function | Trigger | Recipient |
|---|---|---|
| High-risk alert | Danger sign flagged in app | Supervising PHC nurse |
| Referral notification | Referral created for patient | Receiving PHC facility |
| ANC reminder | Scheduled 2 days before appointment | Pregnant woman (if phone available) |
| Postnatal visit reminder | Scheduled per postnatal protocol | CHW/TBA assigned to case |
| Missed visit alert | Visit not recorded within window | CHW supervisor |
| Structured CHW report | CHW sends coded SMS manually | PulseCare system for parsing |
SMS infrastructure is supported through active partnership discussions with MTN Nigeria and Airtel Nigeria for connectivity and bulk SMS routing.
Risk Classification Engine
Every recorded visit is assessed by a rules-based risk engine that classifies the case into one of three tiers and determines the appropriate response pathway.
| Classification | Criteria | Response |
|---|---|---|
| High Risk | One or more critical danger signs flagged fever, heavy bleeding, reduced fetal movement, severe headache, newborn lethargy or feeding failure | Immediate referral recommendation + SMS alert to PHC + LifeBank notification if applicable |
| Moderate Risk | Concerning but non-critical signs mild temperature elevation, newborn feeding difficulties, borderline vital signs | CHW to follow up within 24 hours + case flagged on PHC dashboard |
| Routine Follow-up | No danger signs. Standard ANC or postnatal visit with no flags | Next scheduled visit reminder set. Case remains active on dashboard. |
PHC Dashboard
A web-based dashboard used by nurses, midwives, and PHC administrators to monitor all active cases, track referrals, and respond to high-risk alerts in real time.
| Dashboard Feature | Description |
|---|---|
| Active high-risk cases | Live list of all cases currently flagged High Risk with time since last update |
| Incoming referrals | Referral notifications from CHWs and TBAs in the field, with patient details and reason for referral |
| Missed follow-up tracker | Women and newborns whose scheduled visit has passed without a recorded contact |
| CHW activity summary | Number of visits recorded per CHW over the current period supports supervision and performance monitoring |
| Postnatal visit status | Completion status of all postnatal visits in the current cohort |
| Immunisation schedule | Newborn immunisation calendar with upcoming and overdue vaccination alerts |
Solar-Powered Wearable Device
The PulseCare wearable is a low-cost wristband prototype designed for passive vital-sign monitoring between CHW home visits. It is currently in prototype development and is not yet a production-ready device.
What it monitors
| Signal | Purpose |
|---|---|
| Heart rate trends | Detect sustained tachycardia that may indicate infection, haemorrhage, or sepsis |
| Body temperature | Flag fever onset between CHW visits |
| SpO2 (blood oxygen saturation) | Detect hypoxia in mother or newborn |
| Movement patterns | Reduced activity patterns as a proxy for deterioration or reduced fetal movement |
How data reaches PulseCare
Wearable data is transferred to the CHW mobile app during each home visit via Bluetooth sync. The app displays the last-recorded readings, adds them to the visit record, and flags any abnormal trends for the CHW to assess. No continuous internet connection is required.
Power
The device is designed to be solar-powered addressing the reality that households in Toro LGA have limited or no access to reliable electricity for device charging.
Referral Coordination
PulseCare manages the full referral pathway from the moment a CHW flags a danger sign to the receiving PHC confirming the patient has arrived and been assessed.
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1CHW flags danger sign Risk engine classifies as High Risk. Referral recommendation appears in the app with nearest PHC details.
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2SMS alert sent to PHC Automatic SMS with patient name, danger sign, and CHW contact sent to the designated PHC nurse.
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3LifeBank notified if needed For haemorrhage or critical cases, LifeBank emergency logistics are alerted for blood and oxygen delivery coordination.
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4CHW coordinates transport CHW arranges transport and accompanies or escorts the patient where possible. Referral status updated in app.
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5PHC confirms arrival PHC nurse marks the referral as received on the dashboard. If the patient does not arrive within the expected window, an escalation alert fires.
Danger Signs
PulseCare's danger sign checklist is grounded in WHO maternal and newborn guidelines and MPDSR (Maternal and Perinatal Death Surveillance and Response) surveillance data.
- Fever after delivery
- Heavy bleeding (postpartum haemorrhage)
- Reduced fetal movement
- High-risk postnatal symptoms
- Severe headache
- Visual disturbance (pre-eclampsia warning)
- Swelling of face, hands, or feet
- Difficulty breathing
- Convulsions
- Feeding difficulties / unable to feed
- Temperature abnormalities (fever or hypothermia)
- Fast or difficult breathing
- Lethargy / reduced activity
- Low birth weight (<2.5kg)
- Umbilical cord infection
- Jaundice
- Convulsions
- Colour changes (pallor, cyanosis)
CRADLE VSA Blood Pressure Monitoring
Blood pressure is measured at every PHC antenatal visit using the CRADLE Vital Signs Alert (VSA) device a WHO-validated, low-cost blood pressure monitor designed specifically for use in low-resource settings.
| CRADLE VSA Feature | Detail |
|---|---|
| Measures | Blood pressure and pulse |
| Shock Index | Automatically calculated detects pre-eclampsia, postpartum haemorrhage, and septic shock |
| Alert system | Traffic light Green (safe) / Amber (caution) / Red (escalate immediately) |
| Training requirement | Minimal suitable for all levels of health personnel including CHWs with brief training |
| Validation | WHO-validated. Clinically evaluated in Nigeria (Reproductive Health, 2018) |
| Developed by | King's College London |
| Certification | ISO 13485 |
Three top killers all addressed
| Cause of Death | How PulseCare Addresses It |
|---|---|
| Postpartum haemorrhage | CRADLE Shock Index + danger sign flag in CHW app + LifeBank blood delivery integration |
| Pre-eclampsia / eclampsia | CRADLE VSA BP at PHC ANC visits + traffic light alert + CHW trains to ask about headache and visual disturbance + referral escalation |
| Puerperal sepsis | CRADLE Shock Index + fever danger sign flag in CHW app + CHW referral escalation |
Three-Layer Vital Signs System
PulseCare combines three complementary layers of monitoring so that no single point of failure leaves a mother or newborn unobserved.
- BP measured by nurse/midwife
- Auto Shock Index calculated
- Traffic light alert fires
- Results logged to PHC dashboard
- Structured symptom checklist
- Headache, swelling, vision asked
- Newborn signs assessed
- Instant referral escalation
- Heart rate trends
- Body temperature
- SpO2 (blood oxygen)
- Movement patterns
Offline Architecture
PulseCare is built offline-first meaning the app stores all data locally on the device and operates fully without an internet connection. Connectivity is treated as an optional enhancement, not a requirement.
How offline-first works
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1All data written locally first When a CHW records a visit, registers a mother, or flags a danger sign, the record is written to local device storage immediately no network call required.
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2Sync queue maintained Every offline record is added to a sync queue. The app tracks which records are pending upload and which have been confirmed by the server.
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3Automatic sync on connectivity When connectivity is detected WiFi, mobile data, or a designated sync point at the PHC the sync queue uploads automatically in the background. No manual action needed from the CHW.
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4Conflict resolution If the same record is updated on two devices while offline, the most recent timestamp wins. Conflict logs are maintained for review.
Data Sync
PulseCare uses a bidirectional sync model data flows from CHW devices to the central server, and updated records (new referrals, PHC notes, risk classifications) flow back to CHW devices on next sync.
| Sync Direction | What syncs | When |
|---|---|---|
| CHW Device → Server | Visit records, registrations, danger sign flags, referral initiations, wearable readings | Automatic on connectivity |
| Server → CHW Device | PHC notes on referred cases, updated referral status, new assignment changes | Automatic on connectivity |
| PHC Dashboard → Server | Referral confirmations, BP readings from CRADLE VSA, case status updates | Real-time (requires connectivity at PHC) |
| Server → SMS Gateway | High-risk alerts, missed visit notifications, referral alerts | Triggered immediately on High Risk classification |
Technology Stack
Pilot Scope
PulseCare's initial pilot is planned for Toro Local Government Area, Bauchi State, Northern Nigeria selected because it is one of the highest-burden areas for maternal and perinatal deaths in Nigeria, and because it hosts an existing UNICEF-supported maternal and child health programme.
| Metric | Target |
|---|---|
| Women enrolled | 360 |
| CHWs / TBAs trained and active | 60 |
| Primary Healthcare Centres | 5 |
| Reduction in missed postnatal visits | 50% target |
| Danger signs flagged and referred | 100+ target |
| CHW active engagement rate | 90% target |
Expansion path
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1Toro LGA, Bauchi StateInitial pilot 360 women, 60 CHWs, 5 PHCs
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2Bauchi State-wideScale to additional LGAs following pilot evaluation
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3Northern NigeriaExpand to other high-burden states
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4Other African communitiesReplicate in similar low-resource contexts across Sub-Saharan Africa
Milestones
Fellowship phase 4 months
Post-fellowship 4 months to 1 year
Partnerships
PulseCare has active partnership discussions underway across connectivity, financial protection, emergency logistics, government alignment, and global health programmes.
| Partner | Category | Role |
|---|---|---|
| MTN Nigeria & Airtel Nigeria | Connectivity | SMS infrastructure, voice alerts, rural connectivity support |
| AXA Mansard & NHIA | Financial Protection | Maternal micro-insurance design, coverage and healthcare financing alignment |
| LifeBank | Emergency Logistics | Blood and oxygen delivery coordination for high-risk referrals |
| NPHCDA | Government & Policy | National primary healthcare alignment |
| Bauchi State Ministry of Health | Government & Policy | Pilot coordination and PHC engagement in Toro LGA |
| UNICEF | Global Health | Community maternal and newborn health alignment Mama2Mama, Fathers for Good Health |
| UNDP Nigeria | Global Health | Innovation and inclusive insurance ecosystem engagement |
Regulatory & Compliance
PulseCare touches two distinct regulatory domains in Nigeria medical device oversight (because the risk engine and wearable inform clinical decisions) and data protection (because the platform collects sensitive health information about pregnant women and newborns). Both are addressed below as a compliance roadmap, not a completed certification PulseCare has not yet been registered with NAFDAC or formally registered as a data controller with the NDPC. These are planned pre-pilot milestones.
NAFDAC Medical Device & Software as a Medical Device (SaMD)
The National Agency for Food and Drug Administration and Control (NAFDAC) regulates medical devices in Nigeria under the NAFDAC Act, Cap N1, LFN 2004. In 2024, NAFDAC published two instruments directly relevant to PulseCare: the Medical Devices, In Vitro Diagnostics and Related Products Registration Regulations 2024 (a risk-based classification framework covering hardware devices, including wearables), and standalone Guidelines for Registration of Software as a Medical Device (SaMD), which formally bring qualifying mobile apps and digital platforms into the medical device category.
| Requirement | What it means for PulseCare |
|---|---|
| SaMD registration | Software that performs a medical purpose including apps that interpret health data or guide referral decisions must be registered before it is marketed or used by healthcare providers in Nigeria. |
| Risk classification | Devices are categorised into risk classes; higher patient-impact devices face stricter documentation, performance evaluation, and post-market surveillance requirements. PulseCare's rules-based, decision-support positioning (it flags risk for a CHW to act on, rather than diagnosing independently) is relevant to which class applies, but does not exempt it from registration. |
| Wearable hardware | Regulated separately from the software, under the same 2024 Medical Device Regulations, once it moves past the current prototype stage toward field deployment. |
| Timeline | NAFDAC's stated processing window is approximately 120 working days from a complete submission, provided compliance queries are answered within 90 days. |
| Non-compliance risk | Unregistered medical devices/software are subject to seizure, recall, or distribution restrictions if marketed or deployed without registration. |
NDPA Nigeria Data Protection Act, 2023
The Nigeria Data Protection Act, 2023 (signed into law 12 June 2023) established the Nigeria Data Protection Commission (NDPC) as Nigeria's data protection regulator. Health information including the danger-sign, vitals, and referral data PulseCare collects falls under the Act's "sensitive personal data" category, which requires a stricter lawful basis than ordinary personal data.
| NDPA obligation | PulseCare's approach |
|---|---|
| Lawful basis for sensitive data | Explicit consent captured from the mother (or guardian, where applicable) at CHW registration, aligned with the Act's allowance for processing on medical-care and public-health grounds. |
| Data Protection Impact Assessment (DPIA) | Required for software processing sensitive personal data, submitted to the NDPC. Scoped internally; formal submission is a pre-pilot milestone, not yet completed. |
| Controller/processor registration | Organisations classified as "Data Controllers or Processors of Major Importance" must register with the NDPC. PulseCare will assess and complete this registration ahead of pilot launch, based on enrolment scale. |
| Breach notification | Any breach likely to pose a high risk to data subjects must be reported to the NDPC within 72 hours, with affected individuals notified directly. |
| Cross-border transfer | Personal data may only leave Nigeria to a country or organisation offering an adequate, NDPA-equivalent level of protection, or under approved safeguards (contractual clauses, certification). Relevant if cloud infrastructure or partners are hosted outside Nigeria. |
| Data Protection Officer | Required for controllers of major importance. To be designated alongside NDPC registration. |
Expanding Beyond Nigeria Data Privacy Across Africa
PulseCare's longer-term roadmap includes replication beyond Nigeria into other high-burden, low-connectivity markets. Data protection law is not uniform across Africa treating NDPA compliance as portable to another country would be a mistake. As of the most recently available information, PulseCare's near-term expansion markets sit at different regulatory maturity levels:
| Country | Law & Regulator | Status |
|---|---|---|
| Nigeria | Nigeria Data Protection Act 2023 · NDPC | In force |
| Kenya | Data Protection Act 2019 · Office of the Data Protection Commissioner (ODPC) | In force |
| Tanzania | Personal Data Protection Act 2022 · Personal Data Protection Commission | In force |
| Ethiopia | Personal Data Protection Proclamation | In force most recently enacted in the region |
| DR Congo | Data protection provisions drafted within a proposed national Digital Code | Not yet enacted a regulatory gap, not a green light |
Above the national laws sits the African Union Convention on Cyber Security and Personal Data Protection (the "Malabo Convention"), adopted in 2014 and in force since June 2023 after reaching its 15-country ratification threshold. It sets continent-wide baseline principles for lawful processing and data subject rights, but does not replace the need to comply with each country's own law where one exists.
Live Prototype
PulseCare has a working prototype covering the full CHW workflow registration, visit recording, danger sign detection, referral coordination, and PHC dashboard. Below are screenshots from the actual running application and the wearable hardware prototype.
CHW Mobile App Screens
Wearable Hardware Prototype
The PulseCare solar-powered wristband is currently in hardware prototype stage. The device monitors heart rate, SpO2, temperature, and movement between CHW visits, syncing data to the mobile app via Bluetooth.
GitHub repository